Power supply (terminals 32-31)
19.2 … 31.2 V DCSupply voltage
1.25 A SB / 250 V ACFuse
≤ 2.1 WMaximum required power
≤ 1.7 WMaximum power dissipation
Measuring circuit/RTD input (terminals 41-44)
3-4 wire RTD Pt100 (for other alternatives, see the relay
data sheet)
Sensor type
< 0.002 ohm / ohmEffect of sensor cable resistance (3-/4-wire)
Programmable ON / OFFSensor error detection
YesShort circuit detection
50 ohmCable resistance per wire (max)
0.2 mASensor current (nominal)
Current output (terminals 12-11)
0 … 23 mASignal range (span)
0/4 … 20 mAProgrammable signal ranges
≤ 600 ohmLoad (at current output)
≤ 0.01% of span / 100 ohmLoad stability
0 / 3.5 / 23 mA / noneSensor error indication
23 mA / 3.5 mANAMUR NE43 Upscale/Downscale
3.8 … 20.5 mAon 4…20 and 20…4 mA
signals
Output limitation
0 … 20.5 mAon 0…20 and 20…0 mA
signals
≤ 28 mACurrent limit
Relay output (terminals 13-14)
Setpoint, Window, Sensor error, Power and OffRelay functions
0.1…25 / 1…25Hysteresis, in % of span/display range
0 … 3600 sON-OFF delay time
Break / Make / HoldSensor error reaction
250 V AC/DCMax. voltage
2 AMax. current
500 VAMax. AC power
2 A DCresistive load ≤ 30 V DCMax. DC current
See the relay manualresistive load > 30 V DC
Indication of operating states
LED (green)Operation status
“relay” LED (yellow)Relay status
“error” LED (red)Malfunction
Environmental conditions
-20 °C … +60 °C (-4 °F … +140 °F)Operating temperature
-20 °C … +85 °C (-4 °F … +185 °F)Storage temperature
20 … 28 °C (68 °F … 82 °F)Calibration temperature
< 95% RH (non-cond.)Relative humidity
Technical data 61
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