FlexTop 2221 Universal Transmitter
4...20 mA transmitter with HART® communication.
RTD, T/C, mV and R inputs
Isolation voltage 3.75 kVac
Configuration via FlexProgrammer
or HART® configurator
Accuracy < 0.1°C (Pt100)
Configurable linearisation,
damping and status indication
Current-trim and sensor-trim
Local, remote or fixed compensation
for "cold junction" (CJC)
Ex approvals:
Ex ia IIC T5/T6, ATEX II 1G
Ex nA II T5, ATEX II 3G
Description
FlexTop 2221 is a 4...20 mA loop-powered, configurable universal
transmitter with galvanic isolation between input and output. The input
can be configured for RTD or T/C sensors, resistance, current or voltage signals.
Either 2-, 3- or 4-wire connection can be selected for the resistance
input. The built-in temperature sensor or a remote Pt100 sensor can
be used to compensate for "cold junction" (CJC) if thermocouples are
connected.
The configuration can be established from a standard HART® configurator or the dedicated FlexProgrammer configuring tool connected to
a PC.
FlexTop 2221 is embedded in silicone which makes it resistant to
humid environments.
FlexTop 2221 has a 6 mm center hole for fast sensor replacement and
spring loaded mounting screws which ensure a safe fastening even in
vibrating environments.
The HART® communication feature on-line process calibration and
adjustment, transmitter configuration and multiple process control in
2-wire networks.
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Design and specifications subject to change without notice
Data Sheet 2221-1
Page Technical Data
Input
Environmental conditions
Digital accuracy
See „Measuring ranges“
Operating temperature
-40...85°C
CJC-compensation
Local < 0.5°C
Remote < 0.2°C
Storage temperature
-55...90°C
Humidity
< 98% RH, condensing
RTD measuring current
0.2 mA, continuously
Vibrations
Lloyds Register, test 2
Cable resistance
2-wire
3-/4-wire
3-/4-wire
Max. 30 Ohm/wire {1}
T > 600°C: Max. 10 Ohm/wire
T < 600°C: Max. 30 Ohm/wire
Protection
+/- 35 Vdc
Suppression
50 and 60 Hz
Resolution16 bit
Repeatability
< 0.05°C
Output
Signal span
4...20 mA, 2-wire {1}
20...4 mA, 2-wire {1}
EMC data
Immunity
EN 61326
Emission
EN 61326
NAMUR
NE 21
Approval
Ex ia IIC T5/T6, ATEX II 1G
Supply range
8...30 Vdc
Internal inductivity
Li < 15 µH
Internal capacity Ci < 5 nF
Barrier data
U < 30 Vdc ; I < 0.1 A ; P < 0.75 W
Temperature class
T1...T5: T6: Approval
Ex ia IIC T5/T6, ATEX II 1G
-40 < Tamb < 85°C
-40 < Tamb < 50°C
Characteristic
Linear or customised with
max. 30 points {1}
Accuracy
< 0.1% of signal span
Supply range
8...35 Vdc
Ripple immunity
3 Vrms
Load equation
RL < (Vcc - 8)/23 [kOhm]
Up/Down scaling limits
23 mA/3.5 mA {1}
Mechanical data
Damping
0...15 sec. {1}
Dimensions
ø44 x 26.3 mm
Response time (t90)
Pt100 1.0 sec. ; T/C 1.6 sec.
Protection class
Housing: IP 55
Terminals: IP 10
Supply range12...30 Vdc
Temperature class
Resolution12 bit
T1...T5: -40 < Tamb < 85°C
Other data
HART® data
Protocol
HCF standard, Rev.5
Features {1}
Read serial number
Read/Change user ID
Read/Change configuration
Read input signal value
Read output signal value
Input signal logging
2-point sensor-trim
2-point current-trim
Isolation
3.75 kVac
Temperature drift
Typ. 0.003% per °C
Max. 0.01% per °C
Power-on time1.8...3.9 sec.
Test conditions
Configuration
Pt100; 0...100°C
Amb. temperature
23°C +/- 2°C
Disposal of product and packing
According to national laws or by returning to Baumer
Note
{1} Configurable
Example of Application, Point-to-point
230 Vac
RTD
5
4
5 8
6
3
R
21
-
+
1 2 3 4
+
Built-in
resistance
250 Ohm
FlexTop 2221
www.baumer.com
Design and specifications subject to change without notice
HART® configurator
-
Power supply
Data Sheet 2221-1
Page Measuring Ranges
Type
Standard
Range
Min. span
Accuracy
Resolution
Pt25...Pt1000
DIN/EN/IEC 60751 -200...850°C {2}10°C
0.1°C
0.1°C
Pt25...Pt1000
a = 0.003902 -200...850°C {2}10°C
0.1°C
0.1°C
Pt25...Pt1000
a = 0.003916 -200...850°C {2}10°C
0.1°C
0.1°C
Ni25...Ni1000
DIN 43760
-50...250°C {2}10°C
0.1°C
0.1°C
Cu25...Cu1000
0.428 Ohm/°C -50...200°C10°C
0.1°C
0.1°C
B(PtRh30-Pt)
IEC 584100...1820°C
50°C
2°C
0.1°C
E(NiCr-CuNi)
IEC 584
-270...900°C
50°C1°C
0.1°C
J(Fe-CuNi)
IEC 584
-210...1200°C
50°C1°C
0.1°C
K(NiCr-Ni)
IEC 584
-250...1370°C
50°C1°C
0.1°C
L(Fe-CuNi)
DIN 43710
-200...900°C
50°C1°C
0.1°C
N(NiCrSi-NiSi)
IEC 584
-200...1300°C
50°C1°C
0.1°C
R(PtRh13-Pt)
IEC 584
-50...1750°C100°C
2°C
0.1°C
S(PtRh10-Pt)
IEC 584
-50...1750°C100°C
2°C
0.1°C
T(Cu-CuNi)
IEC 584
-250...400°C
40°C1°C
0.1°C
U(Cu-CuNi)
DIN 43710
-200...600°C
50°C1°C
0.1°C
W5-Re (Type C)
ASTM 988
0...2300°C100°C
2°C
0.1°C
W3-Re (Type D)
ASTM 988
0...2300°C100°C
2°C
0.1°C
Lin. voltage
-10...70 mV
2 mV
0.04 mV
0.1 mV
Lin. voltage
-0.1...1.1 V
20 mV
0.4 mV1 mV
Lin. resistance
0...390 Ohm
5 Ohm
0.05 Ohm
0.01 Ohm
Lin. resistance
0...2200 Ohm
25 Ohm
0.25 Ohm
0.1 Ohm
{2} The max. temperature is lower for RTD-elements in the range 500...1000, i.e. Pt1000 max. 350°C.
Configuration
Note:
Disconnect loop supply before
connecting the FlexProgrammer
to FlexTop 2221.
FlexProgrammer
1
2
21
FlexProgrammer
FlexProgrammer 9701
Red clip
1
21
2
Black clip
Note: Ambient temperature range 0...50°C
Ordering Details - FlexTop 2221
2221 000x (x)
Type
Standard version, non-ex
Ex ia IIC T5/T6, ATEX II 1G
Ex nA II T5, ATEX II 3G
Configuration
5...8´ digit
1
2
3
9´ digit
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Design and specifications subject to change without notice
C
Data Sheet 2221-1
Page Electrical Installation
RTD
T/C
Potentiometer
TC
No cable
compensation {3}
Internal CJC-
compensation
RTD
T/C
R
+
RTD
Resistance
R
No compensation {3}
No compensation {3}
Potentiometer
Resistance
TC
RTD
RTD
3-wire cable
compensation
External CJC-compensation
No cable compensation {3}
3-wire compensation for
transfer resistance {4}
3-wire cable
compensation
RTD
T/C
Potentiometer
Resistance
TC
R
R
+
R
4-wire compensation for
transfer resistance {4}
4-wire cable
compensation
+
RTD
RTD
4-wire cable
compensation
External CJC-compensation
3-wire cable compensation
Current measurement
R
Voltage measurement
UK/2010-03-03 This data sheet may only be reproduced in full.
Notes
{3} Configurable compensation for cable resistance
{4} Transfer resistance between element and wiper
R
Accessories
I
+
Dimensional drawing
ø44
ø6
26.3
[mm]
33
ø4 mounting hole.
Spring loaded
mounting screws.
www.baumer.com
Design and specifications subject to change without notice
The FlexProgrammer 9701 is a dedicated tool to configure all
Baumer configurable products.
Type No. 9701-0001 comprices:
FlexProgrammer interface unit
CD with the FlexProgram software and product drivers (DTM)
USB cable
Cable with 2 alligator clips
Data Sheet 2221-1
Page