Three-state liquid level control relay, with sensitivity adjustment, with PZ2 probes (4pcs), 3×1P contacts, I=2×16A, 3 modules, PZ-831 RC, F&F
- Three-state liquid level control relay, with sensitivity adjustment, with PZ2 probes (4pcs), 3×1P contacts, I=2×16A, 3 modules, PZ-831 RC, F&F
PZ-831 RC liquid level control relay
PZ-831RC
PZ-831 RC relays are used to detect the presence of electrically conductive liquids at the levels of the flood probes mounted. They allow to maintain the minimum and maximum states of the controlled liquid within the range set by the user.
Operation
In the dry state (all probes open) all relay contacts are open. Short-circuiting the base probe COM and another level probe with liquid will close the relay contact assigned to the probe, e.g., when the first level probe R1 is flooded (short-circuiting the base probe COM and the level probe R1), contact 11-12 will be closed. Analogously for level probes R2 and R3. Lowering of the liquid level below the level probe (opening of COM and level probe) will open the contact assigned to the probe.
Probe connection method
Electrode probes (4 pcs.) connected by cable with a wire diameter up to 1 mm? and a maximum length of 100 m.
Note!
Terminals 3-4-5-6 are galvanically separated from the network.
Technical data
Supply voltage | 230 V AC |
Executive element | 3 x relay |
Maximum load current | 3 × 8 A |
Contact configuration | 3 × NO |
Contact separation | YES |
Sensitivity - adjustable | 1÷180 k? |
Voltage of measurement outputs | 6 V |
Type of flooding probe | 4 x PZ2 |
Probe terminals | separated from the mains by a transformer |
Switching delay of contacts | max. 2 s |
Connection | screw terminals 4.0 mm? |
Tightening torque | 0.5 Nm |
Power consumption | 1,1 W |
Operating temperature | -25 ÷ 50 °C |
Dimensions | 3 modules (52,5 mm) |
Mounting | on a 35 mm rail |
Protection degree | IP20 |