Spirax Sarco BC3150 - Water Conductivity; Temperature Compensation (TC)

IM-P403-88 AB Issue 5
41
10.6 Input technical data
Water conductivity
Probe types: CP10, CP30 and CP32
Minimum ≥ 1 µS @ 25°C
0 - 9.99 ppm or μS / cm
Ranges 0 - 99.9 ppm or μS / cm
0 - 999 ppm or μS / cm
0 - 9990 ppm or μS / cm
Accuracy
±2.5% FSD (possibly > in high EM locations)
±5% FSD for 0 - 9.999 range
μS / cm to ppm conversion 0.7
Neutralising factor 0.7
Resolution 0.1% FSD
Drive ac - 4 wires
Temperature compensation (TC)
Sensor type Pt100 – Class B or better
0 - 250°C
Range (With Pt100 not fitted – user programmed
temperature 100 - 250°C, 1°C steps)
Accuracy ±2.5% FSD – system accuracy ±5%
Resolution 1% FSD
Drive: dc – 3 wires
10.7 Output technical data
Probe cleaning (Press ‘CLN’ button in commissioning mode)
Maximum voltage 32 Vdc
Drive Pulsed (1 second on, 1 second off)
Time 20 seconds
4-20 mA
Mimimum 0 mA
Maximum 20 mA
Open circuit voltage (maximum) 19 Vdc
Resolution 0.1% FSD
Maximum output load 500 ohm
Isolation 100 V
Output rate 10 / second