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Buzzer (Cylindrical 16-dia.)
M2BJ
CSM_M2BJ_DS_E_4_2
Buzzer Unit Series with Cylindrical
22-mm × 16-dia. Body
• Lineup includes standard-volume models (80 phons, constant) and
high-volume models (70 to 95 phons, variable). Intermittent or
continuous sound can be selected.
Refer to “Safety Precautions for All Pushbutton Switches/
Indicators” and “Safety Precautions” on page 5.
List of Models
Buzzer
Appearance
Model
Rectangular standard-volume model
M2BJ-B
Rectangular high-volume model
M2BJ-BH
1
M2BJ
Ordering Information
Appearance
w/jumper direction A *2 Intermittent
w/jumper direction B *2 Continuous
(w/o jumper)
Supply voltage
6 VAC/VDC
12 to 24 VAC/VDC
12 to 24 VDC
Model
M2BJ-B06
M2BJ-B24
M2BJ-B24-D
Standard sound
Intermittent
Intermittent
(short)
(high-pitched)
Intermittent
Continuous
(long)
(high-pitched)
M2BJ-B06A
M2BJ-B24A
---
M2BJ-B06B
M2BJ-B24B
M2BJ-B24B-D
High sound *1
Intermittent
Intermittent
Intermittent
(short, high-pitched) (high-pitched) (short)
Intermittent
Continuous
Intermittent
(long, high-pitched)
(long)
M2BJ-B06C
M2BJ-B24C
---
M2BJ-BH06D
M2BJ-BH06E
M2BJ-BH24D
M2BJ-BH24E
M2BJ-BH24D-D M2BJ-BH24E-D
*1. High-sound models incorporate an LED, which lights when the Buzzer sounds.
*2. Refer to “Short-circuiting Jumper (M2BJ-BTH)” on page 5 for the insert direction of the jumper.
External Signal Selection Model
(M2BJ-BH24D-DA)
• An external signal selection model is also available. With this model, it is possible to switch between continuous and intermittent sound using an
external signal instead of the jumper.
3
M2BJ-BH24D-DA
1
2
B
SW
A
Switch direction
When switch A is ON
(when terminals 1 and 2 are ON)
When switch B is ON
(when terminals 2 and 3 are ON)
Sound
Intermittent beeps
Continuous beep
Note: 1. Ensure that voltage is not applied simultaneously between terminals 1, 2, and 3.
2. Check the power supply polarity. Connecting with the polarity reversed may result in damage.
2
M2BJ
Specifications
Buzzer
Model
Item
Operating voltage
Sound pressure (at 0.1 m and rated voltage)
Driving frequency
Intervals
Current
consumption
DC
AC
Inrush current
Life expectancy
Insulation resistance
Dielectric strength
Ambient operating temperature
Ambient operating humidity
Ambient storage temperature
Degree of protection
Weight
Model
Item
Operating voltage
Sound pressure (at 0.1 m and rated voltage)
Driving frequency
Intervals
Current
consumption
DC
AC
Inrush current
Life expectancy
Insulation resistance
Dielectric strength
Ambient operating temperature
Ambient operating humidity
Ambient storage temperature
Degree of protection
Weight
Model
Item
Operating voltage
Sound pressure (The sound pressure
can be adjusted. The figure for sound
pressure given above is for measurement
at a distance of 0.1 m at the rated voltage.)
Driving frequency
Intervals
Current
consumption
Standard-sound Models
M2BJ-B06A
M2BJ-B06B
6 VAC/VDC
Continuous sound: 80 dB (phons) min.
M2BJ-B06
M2BJ-B06C
2±0.5 kHz
4±0.5 kHz
*2 Long:55 times/minute±10%
*4 Long:55 times/minute±10%
190 times/minute±10%
190 times/minute±10%
*1 Short:700 times/minute±10%
*3 Short:700 times/minute±10%
7 mA max.
20 mA max.
20 mA max.
1 A max.
1,000 hours min.
100 MΩ min. (between ground and current-carrying parts)
1,000 VAC for 1 minute (between grounds)
−10°C to 55°C (no icing or condensation)
35% to 85%RH
−25°C to 65°C (no icing or condensation)
IP 40
Approx. 9 g
Standard-sound Models
M2BJ
M2BJ-B24C
M2BJ-B24-D
M2BJ-B24B-D
-B24B
12 to 24 VAC/VDC
12 to 24 VDC
Continuous sound: 80 dB (phons) min.
2±0.5 kHz
4±0.5 kHz
2±0.5 kHz
4±0.5 kHz
190 times/ *2 Long:55 times/minute±10% 190 times/ *4 Long:55 times/minute±10%
190 times/minute±10%
minute±10% *1 Short:700 times/minute±10% minute±10% *3 Short:700 times/minute±10%
7 mA max.
20 mA max.
7 mA max.
20 mA max.
20 mA
--1 A max.
--1,000 hours min.
100 MΩ min. (between ground and current-carrying parts)
1,000 VAC for 1 minute (between grounds)
−10°C to 55°C (no icing or condensation)
35% to 85%RH
−25°C to 65°C (no icing or condensation)
IP 40
Approx. 9 g
M2BJ
-B24
M2BJ-B24A
M2BJ-BH06D
6 VAC/VDC
M2BJ-BH24D
12 to 24 VAC/VDC
M2BJ-BH06E
6 VAC/VDC
High-sound Models
M2BJ-BH24E
12 to 24 VAC/VDC
M2BJ-BH24D-D
M2BJ-BH24E-D
12 to 24 VDC
70 to 95 dB (phons)
Approx. 190 times/min.
DC
AC
Inrush current
Life expectancy
Insulation resistance
Dielectric strength
Ambient operating temperature
Ambient operating humidity
Ambient storage temperature
Degree of protection
Weight
3±0.5 kHz
*6 Long: Approx. 55 times/min.
*6 Long: Approx.55 times/min.
Approx.190 times/min.
*5 Short: Approx. 700 times/min.
*5 Short: Approx.700 times/min.
50 mA max.
100 mA max.
--1 A max.
--1,000 hours min.
100 MΩ min. (between ground and current-carrying parts)
1,000 VAC for 1 minute (between grounds)
−10°C to 55°C (no icing or condensation)
35% to 85%RH
−25°C to 65°C (no icing or condensation)
IP 40
Approx. 12 g
* Tone
*1
*2
*3
High volume
Standard
volume
Continuous (high pitch)
*4
*5
*6
High volume
Intermittent
Bird cry
Telephone busy signal
Short beeps
Long beeps
Alternating high-low pitch
Long beeps
3
M2BJ
Dimensions
(Unit: mm)
Standard-sound Models
M2BJ-B
Panel cutout (Top view)
16 dia.+0.2
0
24 min.
14 dia.
18 min.
Turn-lock metal
Sound outlet
Jumper
(for switching
intermittent sound)
High-sound Models
M2BJ-BH
16
0.3
28.5
9.5
4
Panel cutout (Top view)
8.4
13.5
LED(RED)
Slit
9.5
20
11
14.6 dia.
Turn-lock metal
Mounting ring
M16×1
16 dia.+0.2
0
26 min.
20 min.
5.8
5.8
9
22
26
Control knob
(Groove width 0.6 x length 2.5 x depth 0.8)
Short-circuit
terminal
(for switching
sound)
Note: The LED lights while the sound is produced.
For intermittent sound, the LED flashes
synchronized with the sound.
Contact Form
All Models
(Standard and High-sound Models)
Jumper
Terminal Hole Dimensions
Terminal Arrangement
(Bottom view)
Power supply
Note: There is no +/− polarity.
4
M2BJ
Safety Precautions
Refer to Safety Precautions for All Pushbutton Switches/Indicators.
Precautions for Correct Use
Application Precautions
Short-circuiting Jumper (M2BJ-BTH)
• When power is supplied, there is an inrush current of up to 1 A.
Confirm that this will not adversely affect operation or damage any
devices before using the M2BJ in application. There is no inrush
current with DC-only models (M2BJ-@@@-D).
• With models that can use both AC and DC, residual energy in the
internal capacitor may cause residual sound.
Wiring
• Perform soldering promptly and correctly at a temperature of 350°C
within 3 seconds.Wait for one minute after soldering before exerting
any external force on the solder.
• If flux is required, use non-corrosive rosin liquid. Ensure that the flux
does not penetrate the inside of the case.
• In order to improve the reliability of the soldering and to prevent
pattern burnout, loop the wire through the terminal hole before
soldering.
• In order to fit the terminal holes, use lead wires with a nominal cross
sectional area of 0.25 mm2 max.
• The Buzzer sounds continuously or intermittently depending on
how the short-circuiting bracket is attached to the case guide.
When the bracket is attached with the triangle on it facing direction
A (PC board side), the Buzzer sounds intermittently.
• To produce continuous sounds, attach the bracket to the case
guide so that the triangle on the bracket faces direction B.
• The bracket is set in direction A when ship the product. If the
bracket becomes lost, contact your OMRON representative. The
model number to order is M2BJ-BTH.
Case guide
Direction A
Direction B
Bracket
Operating Environment
• Do not use the Buzzer in environments where foreign substances
may enter the sound outlet. Otherwise, the Buzzer may not sound.
Short-circuit Bracket Mounting Location
PC board
Volume Adjustment Mechanism (M2BJ-BH Only)
Bracket
• Adjust the volume by turning the control knob on the face of the
Buzzer using a screwdriver. Turn to the right to increase the volume
and turn to the left to decrease the volume.
• Turn the control knob with a torque of 0.98 to 2.94 mN·m.
Case guide
LED
Control knob
5
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.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS 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 OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
 Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
 Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
 Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
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 model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog 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 users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2012.9
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 2012 All Right Reserved.
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