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WFC/5 FREQUENCY TO CURRENT CONVERTER 
The WFC/5
converts the pulsed output from your flowmeter into an analogue 4-20mA or 0-10V
signal.  Quick and easy to install Preset to
your requirements Highly accurate Monitor consumption and flow rates
Improve your process Reduce costs and waste High quality
manufacture High reliability Immunity to electrical noise
Application
The WFC/5 will convert a pulsed flowmeter signal into an
analogue signal for instruments such as PLCs, computers, flow
controllers, chart recorders, indicators or moving coil
meters.
Installation The
weatherproof, insulated, impact and chemically resistant enclosure allows the
instrument to be installed almost anywhere. It can be mounted in a panel or on
to a wall via integral holes in the case.
Instrument Function
The WFC/5 will accept any pulsed signal from a flowmeter.
It provides you with two analogue outputs of 4 - 20 mA and 0 - 1 mA. An
unscaled (one to one) 5 V TTL pulse can also be used for instruments requiring
a square wave pulsed input. The instrument has a DC power supply for
sensors.
Features
Overrun compensation: The controller can
automatically compensate for errors caused by slow acting valves and deliver
exactly the volume you want. No flow alarm: If there is a problem
and the signal from the flowmeter stops an alarm will be given and the batch
will be stopped. Linearisation: The accuracy of your system can be
improved by programming any flowmeter errors into the BC7. There is a non
resettable total to allow you to monitor long term usage.
Construction
The Batch Controller is in a standard 1/4 DIN format to
mount in a panel. The front keypad is a sealed unit which provides you with
a splash proof seal that is resistant to most chemicals.
Specification
| Construction: |
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| Protection: |
IP65 |
| Materials: |
Polycarbonate with rubber gasket |
| Mounting: |
Screws via holes in the base corners |
| Power input: |
110 or 230 V a.c. |
| Power output: |
+24V DC 60mA or +8.2V d.c. 12mA and +5V d.c. 30mA |
| Connections: |
PCB mounted screw terminals via a weatherproof cable
gland |
Input signals:
| Frequency range |
0 to 3 kHz |
| 1. Preamplifier: |
Low level <8mA, high level >11mA, input max: 3.0V
100mA |
| 2. Proximity sensor: |
Namur DIN 19234, low level <1mA, high level >3mA |
| 3. Pick-off coil: |
Min.10 mV rms at 100Hz 45mV RMS at 3kHz |
| 4. Switch closure: |
Energising voltage 5V, energising current 10 mA dc |
| 5. Voltage pulse: |
Logic low <1V, logic high >2.5V |
| Input max: |
40V |
| Output: |
0-1 mA into16KOhm |
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4-20mA or 0-20mA into 800 Ohm |
| Response time: |
Approx. 400msec to 60% |
| Linearity: |
0.15% |
| Temp coefficient: |
0.015%/oC |
To view the WFC/5 Frequency To Current Converter pdf data
sheet click here:
To see available data sheets and manuals click here:
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