ProMinent
®
Page 47
12 Technical data
Electrical data
Device Protection class: III
Supply voltage: - 4-20 mA (two wire) current loop,
24 V DC (16...40 V DC), protective low voltage
- PROFIBUS
®
-DP, 24 V DC (16...30 V DC),
protective low voltage
The supply voltage level must not fall below
16 V at any time
Signal output: 4 … 20 mA in normal operation,
23 mA to signal fault,
Ohmic resistance 50 Ω
Enclosure
ratings When installed correctly the following enclosure ratings apply:
Wall/pipe mounted: IP 65 in accordance with DIN VDE 0470-1
Control panel mounted: IP 54 in accordance with DIN VDE 0470-1
Measured
variable, pH Measurement range: -1 … +15 pH at 0 … 100 °C
Reproducibility: 0.01 pH
Operating measurement
deviation: max. 0.02 pH at 25 °C ambient temperature
Insulation voltage: 500 VDC; electrically insulated against
ring circuit
Input resistance: Glass electrode: > 10
12
Ω
Reference electrode: All reference electrodes can be connected
to diaphragm
Resolution: 0.01 pH
Measured
variable, redox Measurement range: -1200 … +1200 mV
Reproducibility: 1 mV
Operating measurement
deviation: max. 2 mV at 25 °C ambient temperature
Insulation voltage: 500 VDC: electrically insulated against
ring circuit
Input resistance: > 10
12
Ω
Reference electrode: All reference electrodes can be connected
to diaphragm
Measured
variable/ Resolution: 1 mV
Correction
variable,
temperature Measurement range: -20 °C … 150 °C
Measurement deviation: max. 0.3 °C (PT 1000 at 25 °C ambient
temperature)
max. 0.5 °C (PT 100 at 25 °C ambient
temperature)
Resolution: 0.1 °C
Display Principle: LCD (liquid crystal display)
Technical data
BA_DM_163_03_08_GB.p65 26.03.2008, 10:20 Uhr47
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