Flowserve NRGS15-1 - Manual (Page 10)

10
Explanatory Notes
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Technical data
Service pressure
25 barg at 224 °C
Connection
Screwed 1" BSP, DIN ISO 228
Materials
Screw-in housing: 1.4571, CrNiMoTi 17 12 2
Electrode rods: 1.4571, CrNiMoTi 17 12 2
Electrode insulation: PTFE
Spacer disc: PTFE
Terminal box: polycarbonate
Electrode rods
Length supplied: 1000 mm
Diameter: 5 mm
Mains supply
220–240 V + 10 /-15%, 50/ 60 Hz
110–120 V + 10 /-15%, 50/ 60 Hz
24 V + 10 / -15 %, 50/60 Hz (optional)
Power consumption
3 VA
Sensitivity (at 25 °C)
Range 1: 0.5 µS/cm
Range 2: 10 µS/cm
The selection of the above range is done via a code switch.
Electrode voltage
20 Vss
Output
Four volt-free relay contacts.
Max. contact rating with a switching voltage of 24 V AC /DC, 115 V AC and 230 V AC:
resistive / inductive 4 A.
Ensure interference suppression by providing contactor with an arc suppressor RC com-
bination.
Contact material AgNi 0.15.
Energizing/de-energizing delay
Relay 1 and 2: 1 sec., factory set
Relay 3: 0- 30 sec., adjustable via potentiometer
Relay 4: 3 sec., factory set