Technical Data
Service pressure
PN 25, 25 bar at 224 °C
Mechanical connection
Screwed G 1A, ISO 228 Screwed NPT G1 (optional)
Materials
Screw-in body: 1.4571, CrNiMoTi17-12-2 or 1.4404, A 470 316L for NPT thread
Electrode rods: 1.4571, CrNiMoTi17-12-2
Insulation of electrode rod: PTFE
Spacer disc: PTFE
Terminal box: Polycarbonate
Electrode rods
Length supplied: 1000 mm Diameter: 5 mm
Supply voltage
220 – 240 V +10/–15 %, 50/60 Hz
110 – 120 V +10/–15 %, 50/60 Hz (optional) 24 V +10/–15 %, 50/60 Hz (optional)
Power consumption
3VA
Fuse
external 63 mA, slow blow, at 230 V, external 125 mA, slow blow, at 115 V, external 1 A, slow blow, at 24 V.
Response sensitivity
(Electrical conductivity of water at 25 °C)
> 0.5 … < 1000 μS/cm or > 10 … < 10000 μS/cm (switch-selectable)
Electrode voltage
20 Vss
Output
4 volt-free change-over contacts,
8 A 250 V AC / 30 V DC cos φ = 1 (IEC 61810) Ensure interference suppression by providing contactor with an arc suppressor RC combination
Energizing /de-energizing delay
Relay 1 and 2: 1s, factory set
Relay 3: 0-30s, adjustable via potentiometer Relay 4: 3s, factory set
Indicators and adjustors
3 red LEDs to indicate “Low level alarm 1 + 2 / High level” 1 yellow LED to indicate “Pump ON”
1 green LED to indicate “Mains supply ON”.
1 ten-pole code switch to select the sensitivity range and to establish the functions
1 test button in the terminal box to check the function of switching channel 1 (connected to terminals)
1 reset button in the terminal box to reset the lock-out function (connected to terminals)
Cable entry / Electrical connection
3 cable glands with integral cable clamps (M 16)
1 two-pole terminal strip for power supply
1 twelve-pole terminals trip for connecting the control cables
1 four-pole terminal strip for test and reset button Screw-type terminal strips, conductor size ≤ 1.5 mm2
Protection
IP 65 to DIN EN 60529
Protection class
2 (completely insulated)
Ambient temperature
when system is switched on: 0 ° … 70 °C during operation –10 ° … 70 °C
Transport temperature
–20 ° … +80 °C (<100 hours), defrosting time of the de-energized equipment before it can be put into opera- tion: 24 hours.
Storage temperature
–20 ° … +70 °C, defrosting time of the de-energized equipment before it can be put into operation: 24 hours.
Relative humidity
max. 95%, no moisture condensation
Weight
approx. 1.4 kg
