Part Number: 440-DR-2001-0000Model: 440 Electronic Vibration Switch
Brand: Metrix
Ordering Information
- Model: 440 - Electronic Vibration Switch
- Number of Alarm Setpoints (Note 1): DR - Two alarm setpoints
- Analog Proportional Output: 2 - 4-20 mA(absolute) (Note 2)
- Scale Range (Note 2,3): 0 - 0.1 ?C 1.5 in/sec (derived peak)
- Shutdown Circuit Output (Note 4): 0 - Triac (5A, SPST) (Note 5)
- Alarm Circuit Output (Note 4): 1 - Triac (5A, SPST) (Note 5)
- Approvals / Local Reset / BNC connector: 0 -
CSA Approvals (Class I, Div 2, Gps B-D)
No local reset pushbutton
No BNC connector - Input Power: 0 - 115 Vac, 50/60 Hz
- Power-up Timed Inhibit (i.e., LOCKOUT) (Note 12): 0 - None
- Transducer Option: 0 - Internal Accelerometer
NOTE
- Some older switches may simply be labeled ??S?? instead of ??SR?? and ??D?? instead of ??DR??.
- The analog proportional output (option B) is related to scale range (option C) and will be 4mA when vibration levels are at or below the bottom scale range. 4 mA = bottom scale range and 20 mA = top scale range
- The 440 switch uses a true RMS amplitude detector and scales its output by 1.414 (RMS x v2) to give a so-called ??derived peak?? measurement. Because this measurement is derived from the RMS value, it will equal true peak only under the special case of a pure sinusoid, not complex vibration signals.
- For dual setpoint switches, the type of output for shutdown and alarm circuits must be the same. For example, a 440-DR switch with a Triac shutdown circuit (D=0) must also use a Triac alarm circuit (E=1).
- Triac output types are recommended when switching medium power rated AC devices such as motor starters, contactors, and relays. However, triacs require a 50mA holding current and exhibit a leakage current of 1mA.
- Estimated Lead Time: 3 - 5
- Shipping Weight: 2.5 Kg
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