Yokogawa 212 Heat Calculator User Manual
Page 10
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.
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:
10ms.
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.
8 Specification