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NUFLO TMP-100 Turbine Meter Pulse Divider Circuit
Brand: CameronCameron’s NUFLO Model TMP-100 is designed to provide a pulse output representing a user defined unit volume from a remote mounted turbine meter.
This output may be interfaced to RTUs, totalizers or field computers. The TMP-100 is specifically designed for turbine flow meters and is to be mounted in a user-supplied weatherproof enclosure or control room environment.
The TMP-100 receives its signal from the magnetic pickup and with a divisor range of 1 to 524,287, provides a pulse output representing a unit of volume over a wide range of applications.
An adjustable potentiometer is provided for the input signal sensitivity. The 19-position divisor dip switches make calibration extremely simple.
The pulse out duration is adjustable with three different pulse outputs available: dry contact relay, opto-isolated emitter collector output and non-isolated electronic pulse out.
Specifications
Brand
Power Supply
- 10 to 28 VDC, 2 mA current draw at rest
- 12 mA during relay contact closure
- 12 mA when opto-isolator open collector module is on
Input Signal
- 20 mV peak-to-peak – 10 V peak-to-peak
Divisor
- 1 – 524,287 (Set by 19 miniature dip switches)
Operating Temperature
- -20°F to 140°F (-28°C to 60°C)
Output Specifications
- Square wave output at 0 to 5 V logic level at turbine meter frequency. Load = 250 K ohm or larger. Maximum turbine meter frequency = 3000 Hz
- Pulse output from divisor at 0 to 5 V logic level. Pulse direction is user-selectable by dip switch setting. Load = 250 K ohm or larger
- Dry contact output 2 pole relay: 0.5 amps, 30 VDC, 10 watt maximum
- Opto-isolated open collector output: 0.1 amps, 30 VDC maximum
- Pulse output duration for all output types is adjustable from 60 ms to 800 ms
- Maximum pulse out rate is 15 Hz (8 Hz at 50% duty cycle) based on 60 ms pulse duration setting, and is lower for longer pulse duration settings