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1/32 DIN Digital Panel Meter
K3GN
CSM_K3GN_DS_E_5_2
1/32 DIN Digital Panel Meter for Downsizing
Equipment and Control Panels
• Compact size: 48 x 24 x 82 (W x H x D).
• Multi-input compatible: DC voltage/current, rotary pulse.
• Two display colors (switchable): green/red.
• Selectable outputs.
• CE marking and UL/CSA approval.
• Splash-proof construction (NEMA4X: equivalent to IP66).
Refer to Safety Precautions for All Digital Panel
Meters.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Model Number Structure
■ Model Number Legend
K3GN-@@-@-@ 24 VDC
1
2
3
4
1. Input Type
ND:
DC voltage/current, NPN
PD:
DC voltage/current, PNP
2. Output Type
C:
2 relay contact outputs (SPST-NO)
C-FLK: 2 relay contact outputs (SPST-NO) and RS-485
C-L1:
2 relay contact outputs (SPST-NO) and DC current (0 to 20 mA, 4 to 20 mA)
C-L2:
2 relay contact outputs (SPST-NO) and DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
T1:
3 transistor outputs (NPN open collector)
T1-FLK: 3 transistor outputs (NPN open collector) and RS-485
T1-L1:
3 transistor outputs (NPN open collector) and DC current (0 to 20 mA, 4 to 20 mA)
T1-L2:
3 transistor outputs (NPN open collector) and DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
T2:
3 transistor outputs (PNP open collector)
T2-FLK: 3 transistor outputs (PNP open collector) and RS-485
3. Option
None:
None
-400:
Normally energized relays
4. Supply Voltage
24 VDC: 24 VDC
1
K3GN
Ordering Information
■ List of Models
Supply
voltage
24 VDC
Input type
Output type
Judgement output
DC voltage, DC current,
or NPN input
2 relay contact outputs
(SPST-NO)
2 relay contact outputs
(SPST-NO)
Normally energized
relays (See note.)
Model
Data transmission output
None
K3GN-NDC 24 VDC
RS-485
K3GN-NDC-FLK 24 VDC
DC current (0 to 20 mA, 4 to 20 mA)
K3GN-NDC-L1 24 VDC
DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
K3GN-NDC-L2 24 VDC
None
K3GN-NDC-400 24 VDC
RS-485
K3GN-NDC-FLK-400 24 VDC
DC current (0 to 20 mA, 4 to 20 mA)
K3GN-NDC-L1-400 24 VDC
DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
3 transistor outputs (NPN None
open collector)
RS-485
K3GN-NDT1-FLK 24 VDC
DC current (0 to 20 mA, 4 to 20 mA)
DC voltage, DC current,
or PNP input
2 relay contact outputs
(SPST-NO)
K3GN-NDC-L2-400 24 VDC
K3GN-NDT1 24 VDC
K3GN-NDT1-L1 24 VDC
DC voltage (0 to 5 V, 1 to 5 V, 0 to 10 V)
K3GN-NDT1-L2 24 VDC
None
K3GN-PDC 24 VDC
RS-485
K3GN-PDC-FLK 24 VDC
3 transistor outputs (PNP None
open collector)
RS-485
K3GN-PDT2 24 VDC
K3GN-PDT2-FLK 24 VDC
Note: Refer to page 5 for information on models with normally energized relays.
Specifications
■ Ratings
Item
K3GN-ND
With DC voltage, DC current, and NPN input
K3GN-PD
With DC voltage, DC current, and PNP input
Supply voltage
24 VDC
Operating voltage range
85% to 110% of the rated supply voltage
Power consumption (at max. load) (See note 1.)
2.5 W max. (at max. DC load with all indicators lit)
Input signal
DC voltage, DC current, no-voltage contact, open collector
DC voltage/current
input
A/D conversion
Double integral method
Pulse signal input
Pulse measurement
method
Periodic measurement method
External power supply
None
Control input
Present value hold or forced zero (selectable) (See note 2.)
Outputs
Relay contact output
(Outputs depend on
the model.)
Transistor output
1 A, 30 VDC (resistive load), mechanical life: 50,000,000 operations min., electrical life: 100,000
operations min.
Max. load voltage: 24 VDC, Max. load current: 50 mA, Leakage current: 100 μ A max.
Communications output
RS-485 (2-wire, half-duplex)
Linear output
DC current (0 to 20 mA DC, 4 to 20 mA: Load:
--500 Ω max., Resolution: Approx. 10,000)
DC voltage (0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC:
Load: 5k Ω min., Resolution: Approx. 10,000)
Display
Negative LCD (backlit LCD) display
7-segment digital display, character height: 7.0 mm, and single illuminated display
Main functions
Scaling, prescaling, teaching, average processing, forced zero, display color selection, output type
selection, key protection, startup compensation timer, hysteresis
Ambient temperature
Operating: −10°C to 55°C (with no condensation or icing)
Storage:
−25°C to 65°C (with no condensation or icing)
Ambient humidity
Operating: 25% to 85%
Altitude
2,000 m max.
Accessories
Rubber packing, fixture, operation manual
Note: 1. A control power supply capacity greater than the rated capacity is required when the Digital Panel Meter is turned ON. Do not forget to
take this into consideration when using several Digital Panel Meters. When power is supplied, all indicators will light and outputs will be
OFF. When using startup compensation time operation, the display will read “00000” and all outputs will be OFF.
2. Enabled only when using DC voltage/current input. (Min.time for control signal input: 80 ms)
2
K3GN
■ Characteristics
Item
K3GN-ND
With DC voltage, DC current, and NPN input
K3GN-PD
With DC voltage, DC current, and PNP input
Input signal
DC voltage/current (4 to 20 mA, 1 to 5 V, ±5 V, ±10 V)
No-voltage contact (30 Hz max. with ON/OFF pulse width of 16 ms min.)
Open collector (5 kHz max. with ON/OFF pulse width of 90 μs min.)
Displayable range
5 digits (-19999 to 99999)
Sampling period
250 ms
Display refresh period
Sampling period: 250 ms (at 4 Hz min.), 250 × Number of averaging times (ms) (with average processing selected),
Input pulse cycle (at less than 4 Hz): Input pulse cycle × Number of averaging times
Comparative output response
time
(transistor outputs)
750 ms max. (transistor output)
(The time required for the judgment output to be output if the input signal rapidly changes from 15% to 95% or from 95% to 15%.)
Linear output response time
750 ms max. (The time required for the analog output to be
--output if the output signal rapidly changes from 15% to 95% or
from 95% to 15%.)
Insulation resistance
20 MΩ min. (at 500 VDC) between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Dielectric strength
1,000 VAC for 1 min between external terminal and case.
Noise immunity
±480 V on power supply terminals in normal mode, ±1,500 V in common mode, ±1 μs, or 100 ns for square-wave noise with 1 ns
Vibration resistance
Vibration frequency: 10 to 55 Hz, Acceleration: 50 m/s2 for 10 min each in X, Y, and Z directions
Shock resistance
Models with transistor outputs: 150 m/s2 three times each in 3 axes, 6 directions
Models with contact outputs: 100 m/s2 three times each in 3 axes, 6 directions
Weight
Approx. 100 g (Main Unit only)
Degree of
protection
Front panel
NEMA4X for indoor use (equivalent to IP66),
Rear case
IP20
Terminals
IP00 and finger protection (VDE0106/100)
Memory protection
Non-volatile memory (EEPROM) (possible to rewrite 100,000 times)
Approved standards
UL508, CSA C22.2 No. 61010-1
EMC
(EMI)
Emission Enclosure:
(EMS)
Immunity ESD:
EN 61326-1
Industrial electromagnetic environment
EN55011 Group 1 class A
EN 61326-1
Industrial electromagnetic environment
EN 61000-4-2:
4 kV (contact discharge)
8 kV (air discharge)
Immunity RF-interference:
EN 61000-4-3:
10 V/m (amplitude-modulated,
80 MHz to 1 GHz)
Immunity Fast Transient Noise:
EN 61000-4-4:
2 kV (power line)
Immunity Burst Noise:
1 kV line to line (I/O signal line)
Immunity Surge:
EN 61000-4-5:
1 kV line to ground (power line)
Immunity Conducted Disturbance
EN 61000-4-6:
3 V (0.15 to 80 MHz)
Immunity Power Frequency Magnetic EN 61000-4-8:
30 A/m (50 Hz) continuous time
■ Input Ranges: Measurement Range and Accuracy
Input type
Analog
Pulse
Remote
in-t
analg
pulse
rmt
DC
current
input
DC voltage input
Analog
range
4 to 20
mA
Analog
range
range
4-20
range
Connection
terminal
E-F
Connection
terminal
Current range
20.00
(mA)
22.00
Voltage
range (V) 10.00
5.000
0.000
4.00
−5.000
0.00
−10.00
Input
impedance
0.00
60 Ω
Input
impedance
Rotary pulse
1 to 5 V
±5 V
±10 V
1-5
5
10
D-E
p-fre
30 Hz
5 kHz
30
5k
B-C
Connection
terminal
11.00
5.500
Pulse
frequency
5.500
Frequency
5000
range
4000
(Hz)
5000
Range of display
from :9999 to
99999 using
communications.
3000
0.000
2000
1000
−5.500
0.0
−11.00
1 MΩ min.
Measurement ±0.1% full scale ± one digit max. (at
accuracy
23±3°C)
±0.1% full scale ± one
digit max. (at 23±5°C)
30.00
0.05
0.05
---
---
±0.1% full scale ± one digit max. (at
23±5°C)
---
Note: The shaded ranges indicate default settings.
3
K3GN
■ Input/Output Ratings
Relay Contact Output
(Incorporating G6K Relays)
Item
Resistive load (cosφ = 1)
Rated load
1 A at 30 VDC
Rated through current
1 A max. (at COM terminal)
Max. contact voltage
60 VDC
Max. contact current
1 A (at COM terminal)
Max. switching capacity
30 VA
Min. permissible load
(P level, reference value)
10 mV, 10 μA
Mechanical life
50,000,000 operations min. (at a
switching frequency of 36,000
operations/hr)
Electrical life
(at an ambient
temperature of 23°C)
100,000 operations min. (at the rated
load with a switching frequency of
1,800 operations/hr)
Transistor Output
Rated load voltage
24 VDC
Max. load current
50 mA
Leakage current
100 μA max.
Communications Specifications
Item
RS-485
Communications method 2-wire, half-duplex
Synchronization method
Start-stop synchronization
Baud rate
1,200/2,400/4,800/9,600/19,200 bps
Transmission code
ASCII
Commu- Reading/
nications Writing to the
K3GN
Read/write comparative set values,
read/write scaling values, enable/
disable the writing of data through
communications, forced-zero control,
and other data.
Linear Output
Item
0 to
20 mA
4 to 0 to 5 V 1 to 5 V
20 mA
Permissible load
impedance
500 Ω max.
Resolution
Approx. 10,000
Output error
±0.5% full scale
0 to
10 V
5 kΩ min.
±0.5 full scale.
±0.15 V at 1 V or less (no
output for 0 or less)
4
K3GN
Nomenclature
1. Main display
2. Status indicators
2. Status indicators
3. Level indicator
4. Level key
5. Mode key
6. Shift key
Name
7. Up/Zero key
Functions
1. Main display
Displays process values, parameters, and set values.
2. Status indicators
OUT1
Lit when output 1 is ON.
OUT2
Lit when output 2 is ON.
SV
Lit when a set value is being displayed or changed.
T
Lit when the teaching function is enabled. Flashes when the K3GN is in teaching operation.
Lit when a calibration value is being displayed during user calibration. Flashes while reading a calibration value.
ZERO
Lit while the forced-zero function is activated.
HOLD
Lit when HOLD input is ON.
CMW
Lit when communications writing is “enabled” and is out when it is “disabled.”
3. Level indicator
Displays the current level that the K3GN is in. (See below for details.)
4. Level Key
Used to change the level.
5. Mode Key
Used to allow the Main display to indicate parameters sequentially.
6. Shift Key
Used to enable that set value to be changed. When changing a set value, this key is used to move
along the digits.
7. Up/Zero Key
Used to change a set value. Used to set or clear a forced-zero function when a measurement value is
being displayed.
Level indicator
Level
Protect
p
Not lit
Operation
Adjustment
a
s
c
f
u
Initial setting
Communications setting
Advanced function setting
User calibration
Models with Normally Energized Relays
K3GN-NDC-@-400 24 VDC
Relation between Output Type and Relay
• The drive operation for the output relay is reversed in these models.
• Relay contacts can be made open (i.e., OFF) when comparative set
values are being judged. This is effective when constructing systems
that take failsafe measures into consideration.
List of Models
Models with Normally Energized Relays
K3GN-NDC-400 24 VDC
K3GN-NDC-FLK-400 24 VDC
K3GN-NDC-L1-400 24 VDC
K3GN-NDC-L2-400 24 VDC
Output Operation
Upper limit
Set value
Upper and lower limits
Hysteresis
Measurement
value
ON
Output
OFF
Lower limit
Measurement
value
Set value
Upper-limit
set value
Measurement
value
Lower-limit
set value
ON
Output
OFF
Note:
Hysteresis
Hysteresis
If Upper/Lower Limit is selected, the
upper limit and lower limit for the comparative set value can be set individually and will be displayed for OUT1
and OUT2.
Hysteresis
ON
Output
OFF
5
K3GN
Connections
■ Terminal Arrangement
Output terminals
NC
7
8
RS-485
8
7
B (+)
A (−)
C
7
8
(+)
(−)
1
D
7
8
1
2
9 10 11 12
3
4
5
6
A
2
B
D
3
Operation
power supply
24 VDC
Models with
Models with
Models with
PNP transistor outputs NPN transistor outputs relay outputs
NC
OUT1
9
NC OUT2
COM
10 11 12
OUT1 PASS OUT2 COM
9
10 11 12
OUT1 PASS OUT2
9
10 11
5
6
COM
12
Event or pulse/contact input
1
2
3
Operation
power supply
24 VDC
B
Analog input
A
Models with PNP inputs Models with NPN inputs
Models with
linear output
C
Models with
communications
Models without
communications
Input terminals
4
COM
Voltage Current
Analog input
Event or pulse/contact input
Terminal No.
Name
Description
A-B
Operation power
Connect the operation power supply.
C-B
Event input or pulse/contact input
Operates as follows depending on parameter
setting:
• Holds process value.
• Calibrate the process value to zero and clear
the forced-zero function.
• Pulse or contact input.
D,F-E
Analog input
Connect the voltage or current analog input.
G-H
Communications
RS-485 communications terminals.
Linear output
0 to 20 mA DC, 4 to 20 mA DC
Outputs
Outputs relay or transistor outputs. There is
also a PASS output for models with transistor
outputs.
C-A
0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC
I,K-L
I,J,K-L
6
K3GN
■ Block Diagram
Key
Analog input
terminal
Display
Transistor output
(See note 1.)
A/D
conversion
circuit
Input circuit
Drive circuit
Output
circuit
Drive circuit
EEPROM
Microcomputer
Communications terminal
(See note 4.)
Communications driver
Drive circuit
Waveform
rectification
circuit
Control input
circuit
Contact output
(See note 3.)
X
Output
circuit
Drive circuit
Pulse/
Control
input
terminal
Linear output
(See note 2.)
Constant voltage circuit 1
Constant voltage circuit 2
Power supply circuit
Note: 1.
2.
3.
4.
Operating power supply
Transistor output models only.
Linear output models only.
Relay output models only.
Models with communications functions only.
■ Input Circuits
Analog Input (DC Voltage/Current)
Pulse Input/ Event Input (HOLD/ZERO)
Use terminal 5 for analog common.
• If analog input is selected, 2 and 3 will be the event inputs.
Select Hold/Zero with event input allocation.
• Use terminal 2 for the common terminal.
• Use the NPN open collector or the no-voltage contacts for the
control input.
−
Voltage 4
input
−
To A/D
Current 6
input
+
COM 5
To A/D
+
NPN Input
COM 5
24 VDC
1
Comparative Output
2
Contact Output
3
24 V
2.35 kΩ
4.7 kΩ
5V
PNP Input
X
OUT1
OUT2
24 VDC +
1
2.35 kΩ
3
Hold/Zero Pulse
4.7 kΩ
Transistor Output
24 VDC −
PNP Output
NPN Output
8.2 Ω
8.2 Ω
8.2 Ω
9 OUT1
10 PASS
11 OUT2
12 COM
2
12 COM
8.2 Ω
11 OUT2
8.2 Ω
10 PASS
8.2 Ω
9
OUT1
7
K3GN
Linear Output
Linear voltage output
+
5 kΩ
L
min.
−
Linear current output
−
−
7
8
+
+
500 Ω
L
max.
−
7
+
8
Note: The commons for linear output and transistor output on models
with L1 and L2 are connected internally.
Depending on how the common is wired for externally
connected devices, unwanted current paths for the linear
output signal in the circuit may prevent the output signal from
being output.
When connecting an external device, externally connect a relay
to the transistor output or provide another means of insulation.
8
K3GN
Operating Procedures
■ Initial Setting Flowchart
Power ON
Input Type
Input type
Press the Level Key for 3 s
min. to move to the initial
setting level.
Parameter
analg
pulse
rmt
Analog
Pulse
Remote
Function
Selects the DC voltage/current signal input.
Selects the pulse input signal.
Displays the communications remote data from the
Programmable Controller.
Note: The default value is analg: Analog input.
Select the input type and
analog type (or pulse
frequency).
Set the scaling value and
output type if required.
Analog Input Type
K3GN-ND@
Input specification
1 to 5 V
For models with communications,
press the Level Key for less than
1 s to move to the
communications setting level.
Set the communications
specification and press the Level
Key for less than 1 s to move to
the initial setting level.
Parameter
4-20
1-5
5
10
4 to 20 mA
±5 V
±10 V
Setting range
Values from −19999 to 99999 can be displayed with scaling.
The position of the decimal point can be set as desired.
Note: The default value is 4-20: 4 to 20 mA input range.
K3GN-NL@ (with Microvoltage Input)
Input specification
±199.9 mV
Parameter
199.9
19.99
±19.99 mV
Setting range
Values from −19999 to 99999 can be displayed with scaling.
The position of the decimal point can be set as desired.
Note: The default value is 199.9: ±199.9 mV input range.
If required, move to the advanced
setting level and set parameters,
such as the average processing,
event input assignment,
hysteresis value, auto-zero time,
startup compensation time, and
display color change.
Pulse Frequency
Input specification
Parameter
0.05 Hz to 30.00 Hz
30
5k
0 Hz to 5 kHz
Setting range
Values from −19999 to 99999 can be displayed with scaling.
The position of the decimal point can be set as desired.
Note: The default value is 5k: 5 kHz input range.
Press the Level Key for 1 s min.
to return to the operation level.
Setting Scaling
Analog Input Signal
(Refer to page 10 if a pulse input is selected.)
Set the values for OUT1 and OUT2.
Operation
• The scaling will be displayed on a line connecting two points by setting Display 1 for Input 1 and
Display 2 for Input 2.
The position of the decimal point can be set as desired. If the decimal point is to be displayed, it is
necessary to consider the number of digits to be displayed past the decimal point when setting the
scaling display value.
Note: When pulse input is used, the base point is the 0 point, so the settings are only the input
value and the display value.
Displayed
value
Displayed
value
Display 2
Display 2
Display 1
Display 1
Input 1
Input 2
Input 2
Input value
Input 1
Input value
Instead of setting by inputting with the Shift Key and Up Key, current measurement values van be
input as scaling input values for teaching. This is useful for making settings while checking the
operation status of the K3GN.
For details on the operating procedures, refer to the K3GN Digital Panel Meter Manual (Cat. No.
N102).
9
K3GN
• If the K3GN is used with a pulse signal input, the display value will be the input frequency if scaling is not performed.
Display the rate of rotation or the speed of a device or machine to which the K3GN is mounted by converting using scaling.
The relation between input f (Hz) and display D is expressed in the form D = f x a (factor). The value depends on the display unit. The formula
will be comprised as follows:
Display using rpm: D = f x 1/N x 60, N = Number of pulses per rotation, f = Input pulse frequency (Hz) (i.e., number of pulses in one second)
Display using m/min: D = f x π d x 1/N x 60, π d = Circumference length (m) per rotation
Prescaling Example
Display value D
Display value
Pulse
K3GN
To display the rotational speed of a device that outputs five pulses
per rotation:
D = f × 1/5 × 60, and,
0
Input value
0
Input value f (Hz)
If f=1,
D = 12, so
The setting will be completed by inputting inp:1 and dsp:12.
Output 2 Type
Output 1 Type
Output
type
Parameter
Function
Output
type
Parameter
Function
Upper limit
hi
Output turns ON if the
measurement value ≥ comparative
set value 1.
Upper limit
hi
Output turns ON if the
measurement value ≥ comparative
set value 2.
Lower limit
lo
Output turns ON if the
measurement value ≤ comparative
set value 1.
Lower limit
lo
Output turns ON if the
measurement value ≤ comparative
set value 2.
Upper and
lower
limits
hi-lo
The comparative upper-limit set
value and comparative lower-limit
set value can be set separately and
expressed high and low.
Output turns ON if the
measurement value ≥ comparative
upper-limit set value 1 or if the
measurement value is ≤
comparative lower-limit set value 1.
Upper and
lower limit
hi-lo
The comparative upper-limit set
value and comparative lower-limit
set value can be set separately and
expressed high and low.
Output turns ON if the
measurement value ≥ comparative
upper-limit set value 2 or if the
measurement value is ≤
comparative lower-limit set value 2.
Note: The default setting is lo: Lower limit.
Note: The default value is hi: Upper limit.
Upper Limit
Comparative set value
Lower Limit
Upper and Lower Limits
Comparative
upper-limit set value
Hysteresis
Measurement value
Measurement value
Comparative set value
ON
Comparative output
OFF
Hysteresis
Measurement value
Hysteresis
ON
Comparative output
OFF
Comparative
lower-limit set value
ON
Comparative output
OFF
Hysteresis
The output operations can be selected separately for OUT1 and OUT2.
Upper Limit 2-stage Output
Comparative
set value 2
Comparative
set value 1
Comparative ON
2 output
OFF
Comparative ON
1 output
OFF
PASS
ON
(Transistor OFF
output
models only)
Threshold Output
Comparative upperlimit set value 2
Comparative upperlimit set value 1
Comparative lowerlimit set value 1
Comparative upperlimit set value 2
Comparative
2 output
Comparative
1 output
PASS
(Transistor
output
models only)
ON
OFF
ON
OFF
ON
OFF
Combination of Upper Limit and Upper/
Lower Limits
Comparative upperlimit set value 2
Comparative
set value 1
Comparative upperlimit set value 2
ON
Comparative
OFF
2 output
Comparative ON
OFF
1 output
PASS
ON
(Transistor
OFF
output
models only)
10
K3GN
Linear Output Type
Linear output
type
Parameter
Meaning of set value
Linear current
type
0-20
4-20
0-5
1-5
0-10
Linear current type: 0 to 20 mA
Linear voltage
type
Linear current type: 4 to 20 mA
Linear voltage type: 0 to 5 V
Linear voltage type: 1 to 5 V
Linear voltage type: 0 to 10 V
11
K3GN
Setting Menu and Parameters
Power ON
+
key
at least the user-set time
Operation level
Adjustment level
key
less than 1 s
key
1 s min.
Protect
+
keys
1 s min.
key
3 s min.
Initial setting level
key
less than 1 s
Communications
setting level
Measurement in progress
key
1 s min.
Password input
Measurement stopped
Advanced function
setting level
Not displayed for some models.
Level change
Password input
Measurement is stopped in the setting level.
At that time all outputs will turn OFF.
Calibration level
Power ON
key less than 1 s
Adjustment level
Communications
writing
Operation level
/
Present value
Comparative
set value 1
Select
either.
While the parameter is being displayed, press the
Key to display
the set value.
Monitor Status
Press the
Key again to enter the status for setting.
Setting Status
The part to be changed will flash.
Make the required setting, then press the
Key. The system will
switch to the next parameter and the set value will be registered.
Monitor status
SV will flash.
To the next parameter
Comparative
upper-limit
set value 1
to
Comparative
lower-limit
set value 1
to
Comparative
set value 2
Changing Set Values
Select
either.
to
to
Comparative
upper-limit
set value 2
to
Comparative
lower-limit
set value 2
to
Setting status
Change the set
value using the
Keys.
If 5 s lapses without any key being
pressed, the set value will be registered,
and the system will return to monitor status.
12
K3GN
key less than 1 s
Communications setting level
Communications
unit No.
to
,
key 1 s min.
/
/
Baud rate
key 3 s min.
/
/
kbps
Initial setting level
key 1 s min.
Input type
K3GN-ND@
/
Analog input
Analog
model
Data bits
/
Stop bits
/
Analog:
Pulse:
Remote:
/
/
K3GN-NL@ (Microvoltage input)
Parity
/
None:
Even:
Odd:
Pulse input
Pulse
frequency
Analog input
Scaling
input
value 1
to
Scaling
display
value 1
to
Scaling
input
value 2
to
Scaling
display
value 2
to
Scaling
input value
Comparative
1 hysteresis
to
to
to
Scaling
display
value
to
Comparative
2 hysteresis
to
to
Decimal
point
position
to
/
Hz
key 1 s min.
Pulse input
Analog input
Pulse input
Comparative
1 type
Upper limit:
Comparative
2 type
Upper limit:
/
Average
processing
/ / /
Event input
allocation
Auto-zero
time
times
/
to
s
to
s
Green (red):
Display
color change
Lower limit:
Upper and
lower limits:
/
/
to
Linear
output
lower-limit
set value
to
to
Green:
Red (green):
Red:
/
Linear
output
upper-limit
set value
Move to
advanced
setting level
Parameter
initialization
Startup
compensation
time
Lower limit:
Upper and
lower limits:
Linear
current
Linear
voltage
Advanced setting level
Enter password
"-0169"
Display
auto-return
time
to
to
Move-toprotect
level time
to
to
Send
waiting time
to
Move to
calibration
level
s
s
to
to
ms
to
to
The highlighted values indicate default settings.
13
K3GN
Protect level
Operation/
adjustment
protection
/
/
Restricts menu display and writing in the operation level and adjustment level.
Initial setting/
communications
protection
/
/
Restricts menu display and moving for the initial setting level, communications
setting level, and advanced setting level.
Setting
change
protection
/
Restricts changes to setup by operating the keys on the front panel.
Forced-zero
protection
/
Restricts forced-zero operation by operating the keys on the front of the panel.
(This item is not displayed if pulse input is used.)
Operation/Adjustment Protection
Restricts key operation in the operation level and adjustment level.
Setting
Operation level
Present value
display
0
Allowed
Comparative
value display
Moving to
adjustment
level
Allowed
Allowed
1
Allowed
Allowed
Prohibited
2
Allowed
Prohibited
Prohibited
• The default setting is 0.
• Protection is not enabled when the setting is 0 (initial setting).
Initial Setting/Communications
Protection
Restricts moving to the initial setting level, communications setting
level, and advanced function setting level.
Setting
Setting
Moving to
communications
level
0
Allowed (message for moving to
advanced function setting level
displayed)
Allowed
1
Allowed (message for moving to
advanced function setting level not
displayed)
Allowed
2
Prohibited
Prohibited
Setting Change Protection
Restricts changes to settings.
Moving to initial setting level
• The default setting is 1.
Details
OFF
Changes to settings using the keys are allowed.
(Moving to setting status is allowed.)
Forced-zero Protection
ON
Changes to settings using the keys are prohibited.
(Moving to setting status is prohibited.)
Restricts the executing or clearing of a forced zero by using the keys.
Setting
Details
• The default setting is OFF.
OFF
Executing or clearing of forced zero allowed.
Note: Changes to protection level parameters, moving to advanced
function setting level, and moving to calibration level are all
allowed.
ON
Executing or clearing of forced zero prohibited.
• The default setting is OFF.
■ Error Displays (Troubleshooting)
If an error occurs, error information will be displayed on the main display. Check the error according to the display and correct the error as indicated.
Main display
Level display
Error details
e111 (E111)
Not lit
Memory error: RAM
e111 (E111)
s
Memory error: EEP
s.err (S.Err)
Not lit
Input error or input
range exceeded.
Not lit
Display range over:
Upper limit
Not lit
Display range over:
Lower limit
flashing
99999
flashing
:9999
Flashing
Correction
Cycle the power supply. If the display does not change, replacement is
required. If the error is removed, the original error may have been
caused by noise. Check that there are no possible sources of noise
nearby.
The outputs will all turn OFF.
Check that the input wiring is correct, that there is no disconnection, or
short-circuit, and that the input type is correct. Alternatively, limit the
This is not an error. It is displayed when the display range is exceeded
even if the present value is within the input range and control range.
Limit the input value and display value to within the range.
14
K3GN
Operation
■ Main Functions
Key Protection
Scaling
Key protection is used to restrict changes to displays and settings
using the front panel keys and to restrict menu display and
movement of operation levels. This function is effective for
preventing misuse during operation.
The K3GN includes a scaling function that can convert the input
signal to a desired value and display that value.
The displayed values can be freely adjusted to shift values, to create
reversed displays, or to create positive/negative displays.
Display
value
DISPLAY2
Display
value
DISPLAY2
DISPLAY1
DISPLAY1
(
INPUT1 INPUT2
) (
) Input value
Startup Compensation Time (Rotary
Pulse Input Only)
The startup compensation time parameter keeps the measurement
operation from sending an unnecessary output corresponding to
instantaneous, fluctuating input from the moment the K3GN is turned
ON until the end of the preset period.
Hysteresis
INPUT1
INPUT2
Input
value
The hysteresis of comparative outputs can be set to prevent the
chattering of relay or transistor outputs.
Teaching
Teaching is used when using scaling or setting comparative set
values to set the present measurement values as the set values
instead of inputting with the Shift and Up/Zero Keys. Teaching is
useful for making settings while checking the operation status of the
K3GN.
Average Processing
Average processing can be performed for measurement values
using four levels (OFF, 2 times, 4 times, or 8 times). Average
processing stabilizes displayed values by averaging the
corresponding input signals that fluctuate dynamically. Select the
appropriate number of averaging times depending on the application.
Forced-zero Function
It is possible to shift from a
value to the zero point with
one touch of the Up/Zero
Key on the front panel (for
example, when adjusting
reference values).
K3GN
OUT1OUT2SV-
Note: This function can be
used only when
forced-zero operation
protection is released.
-ZERO
-HOLD
-CMW
/ZERO
Changing the Display Color
The color of the value displayed can be set to either red or green.
Make the setting according to the purpose and application of the
equipment in which the K3GN is installed. The display color can also
be set to change from green to red, or from red to green, according
to the status of the comparison criteria.
Output Type Selection
Output operation for comparative set values can be freely selected.
Upper limit: Output ON if the measurement value ≥ comparative set
value.
Lower limit: Output ON if the measurement value ≤ comparative set
value.
Upper/lower limit: Output ON if the measurement value ≥
comparative upper-limit set value or if the measurement value is ≤
the comparative lower-limit value.
15
K3GN
Dimensions
Note: All units are in millimeters unless otherwise indicated.
K3GN
Panel Cutout Dimensions
Separate mounting
+0.6
45 0
-
-
44.8
Gang mounting
(48 × No. of Panels − 2.5) +1.0
0
+0.3
22.2
22.2 0
+0.3
0
40 min.
The products cannot be
made waterproof when
gang-mounted.
Mounting Recommended Panel Thickness 1 to 5 mm.
Mount the product horizontally.
K3GN
OUT1-
35 24
-ZERO
-HOLD
T
OUT2SV-
22
-CMW
• For installation, insert the K3GN
panel into the rectangular hole,
insert the adaptor from the rear, and
push it in to reduce the gap between
the panel surface and the adaptor.
Secure the Unit with the screws.
For water-proof installation, insert
the rubber gasket onto the body of
the K3GN.
• If multiple mounted Units are used,
make sure the ambient temperature
for the K3GN does not exceed the
specified temperature.
/ZERO
48
80
2
The K3GN uses M3 terminals. A terminal
cover is provided.
Main Display Character Size
7 mm
3.6 mm
Installation
1. Insert the K3GN into the panel cut-out hole.
2. For a waterproof installation, insert the rubber gasket onto the
body of the K3GN.
Rubber packing
■ Rubber Packing
The Rubber Packing ensures a waterproof level conforming to
NEMA4X. Depending on the operating environment, deterioration,
contraction, or hardening of the Rubber Packing may occur, making
replacement necessary. Contact your OMRON representative if
replacement is required.
■ Wiring Precautions
3. Fit the adaptor into the grooves on the left and right sides of the
rear case, then push it until it contacts the panel to secure the
K3GN.
Adaptor
• Wire the power supply with the correct polarity. Wiring with
incorrect polarity may result in damage or burning.
• Wire the terminals using crimp terminals.
• Tighten terminal screws to a torque of approx. 0.5 N·m.
• Wire signal lines and power lines separately to reduce the influence
of noise.
■ Wiring
Power Supply
• Input 24 VDC to terminals 1 and 2.
1
24 VDC
Angle of View
The K3GN is designed to provide the best visibility at the angles
shown in the following diagram.
2
• Use M3 crimp terminals of the type shown below.
5.8 mm max.
40°
5.8 mm max.
20°
16
K3GN
Measurement Input
The following table shows the relation between input ranges and
input terminals.
Input range
DC voltage/DC current
Input terminals
4 to 20 mA
E-F
1 to 5 V
D-E
±5 V
±10 V
No-voltage contacts and NPN open collector
(Models with NPN inputs)
B-C
No-voltage contacts and PNP open collector
(Models with PNP inputs)
A-C
Be sure to read the Precautions for Correct Use and other information required when using the K3GN in the
following user’s manual.
K3GN Digital Panel Meter User’s Manual (Cat.No. N102)
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
17
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.12
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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