Contrec 212 - Page 10

212-M-V2.1
8 Specification
Flowmeter Input
Type: Frequency or Pulse between 0.01Hz to 20kHz.
Default low frequency cut-off is 0.25Hz.
Signal Type: Pulse, open collector, reed switch,
proximity switch or coil.
K-factor range: Programmable between 0.001 to 999,999.9
pulse
per litre, m
3
, US gallon or ft
3
.
Location: In either the feed or return lines.
Temperature Sensor (RTD) Input
Sensor Type: Pt100 to IEC 751, matched pair, Class A.
Connection Type: Four wire.
Location: Two RTD inputs, one for the feed and a second
for the return lines.
Linearisation: Built in RTD linearisation.
Temperature Range: -10°C to 220°C.
RTD Cable Length: < 50m.
Pulse Out
Pulse Width: Programmable: 10, 20, 50, 100, 200 or 500ms.
Type: Open collector will sink up to 100mA.
30Vdc Maximum.
Function: Volume or Energy (scaled).
Frequency: 1 pulse every preset number of units of energy
or volume total.
Power Requirements
dc Power: 12 to 24V dc @ 100mA maximum.
ac Power: Supplied via a power adapter.