Instruction and Operation Manual
X-CM-QmBS-eng
Part Number: 541B052AHG
June, 2008
Appendix A Dimensions and Specifications
QmBS Sensor / QTA Transmitters
Table A-19 DIN Transmitter Input/output Signals (Continued)
One active or passive frequency/pulse output
• Not intrinsically safe
• Can report mass flow or volume flow, which can be used to indicate flow rate or
total
• Scalable to 10,000 Hz
• Power:
- Internal (active): +15 VDC ±3% with 2.2 kohm internal pull-up resistor
- External (passive): +30 VDC maximum, 24 VDC typical, sinking up to 500 mA
at 30 VDC
Output is linear with flow rate to 12,500 Hz
One or two active or passive discrete outputs
• Not intrinsically safe
• Can report event 1, event 2, event 1 and event 2, flow switch, forward/reverse
flow, calibration in progress, or fault
• Power:
- Internal (active): +15 VDC ±3% with 2.2 kohm internal pull-up resistor
- External (passive): +30 VDC maximum, +24 VDC typical, sinking up to 500 mA
at 30 VDC
Maximum sink capability: 500 mA
One discrete input
• Can be configured for internal or external power
• Not intrinsically safe
• Power:
- Internal: +15 VDC, 7 mA maximum source current
- External: +3 to 30 VDC maximum
Can reset all totals, reset mass total, reset volume total, or start sensor zero
A-12
