ENRM

KEY FEATURES

  • Regulation of 1 or 2 levels (min / max)
  • Monitoring filling (UP) or emptying (DOWN) selected by a switch on the front panel
  • Probes supplied with AC current
  • Time delay preventing wave effect adjustable from 0.1 to 5s (ENRM)
  • Sensitivity adjustable on front panel from 250 Ω to 1 M Ω (ENRM)
  • Sensitivity adjustable on front panel from 5 KΩ to 100 k Ω (ENR)
CharacteristicsVoltagesCode
Monitoring filling (UP) Monitoring emptying (DOWN)24 →240 V ∿/⎓84870210

Specifications


Operating range 24 →240 V ∿/⎓
Operating range 20,4 →264 V ∿/⎓
Maximum power consumption ∿ 5 VA, ⎓ 1,5 W
Adjustable sensitivity 5 KΩ →100 KΩ
Measurement accuracy (at maximum sensitivity) ± 30 %
Electrode voltage (max) 12 V
Electrode current (maximum) 1 mA
Maximum cable capacity 10 nF
Response time high level 300 ms
Response time low level 500 ms
Output relay (according to AC1 resistive load) 1 changeover relay 8 A AC max.
Isolation of contacts and electrodes from power supply 2,5 kV ∿
Operating temperature range (°C) -20 →+50 °C
Storage temperature range (°C) -40 →+70 °C
Weight (g) 91

Technical sketches

Rotary switch in mode 2 - Activation time - Filling function

Rotary switch in mode 2 - Activation time - Filling function
Legend
1-
Level
2-
Relay
(level : 1 - on delay, function Up LS (Low Sensitivity : 250 Ω to 5 kΩ), Up St (Standard Sensitivity : 5 kΩ to 100 kΩ), Up HS (High Sensitivity : 50 kΩ to 1 MΩ). When the level of liquid drops below the probe for a period exceeding the value of time delay T set on the front panel, the relay energises and remains on until the level of liquid reaches the probe again. If the level of liquid returns above the level set before the time delay elapses, the relay does not come on. When the power returns after a power break, the output relay only energises after time delay T if the level of liquid is below the threshold.

Rotary switch in mode 2 - Activation time - Emptying function

Rotary switch in mode 2 - Activation time - Emptying function
Legend
1-
Level
2-
Relay
(level : 1 - on delay, function Dwn LS (Low Sensitivity : 250 Ω to 5 kΩ), Dwn St (Standard Sensitivity : 5 kΩ to 100 kΩ), Dwn HS (High Sensitivity : 50 kΩ to 1 MΩ). When the level of liquid rises above the probe for a period exceeding the value of time delay T set on the front panel, the relay energises and remains on until the level of liquid drops back below the probe. If the level of liquid drops back below the level set before the time delay elapses the relay does not come on. When the power returns after a power break, the output relay only energises after delay time T if the level of liquid is above the threshold.

Rotary switch in mode 3 - Deactivation time - Filling function

Rotary switch in mode 3 - Deactivation time - Filling function
Legend
1-
Level
2-
Relay
(level : 1 - off delay, function Up LS (Low Sensitivity : 250 Ω to 5 kΩ) or Up St (Standard Sensitivity : 5 kΩ to 100 kΩ) or Up HS (High Sensitivity : 50 kΩ to 1 MΩ). When the liquid level drops below the probe the relay energises immediately and remains on until the level of liquid reaches the probe again and remains above it for a period exceeding time delay T set on the front panel. If the level of liquid drops back below the level set before the time delay elapses, the relay remains on. When the power returns after a power break, the output relay energises immediately if the liquid level is below the threshold.

Rotary switch in mode 3 - Deactivation time - Emptying function

Rotary switch in mode 3 - Deactivation time - Emptying function
Legend
1-
Level
2-
Relay
(level : 1 - off delay, function Dwn LS (Low Sensitivity : 250 Ω to 5 kΩ) or Dwn St (Standard Sensitivity : 5 kΩ to 100 kΩ) or Dwn HS (High Sensitivity : 50 kΩ to 1 MΩ). When the level of liquid rises above the probe the relay energises immediately and remains on until the level of liquid drops back below the probe for a period exceeding the value of time delay T set on the front panel. If the level of liquid returns above the level set before the time delay elapses the relay remains on. When the power returns after a power break, the output relay energises immediately if the level of liquid is above the threshold.

Monitoring two levels, emptying function

Monitoring two levels, emptying function
Legend
1-
Maximum level
2-
Minimum level
3-
Output relay : Down
(level : 2,function Dwn LS (Low Sensitivity : 250 Ω to 5 kΩ), Dwn St (Standard Sensitivity : 5 kΩ to 100 kΩ), Dwn HS (High Sensitivity : 50 kΩ to 1 MΩ). The output relay remains open as long as the level of liquid has not reached the maximum probe. Once the maximum level is reached the contact closes and the tank can then be emptied (valve opened, pump started, etc). When the level drops below the minimum level the contact opens and interrupts the emptying process. Note : when monitoring two levels the time delay preventing the wave effect is not in operation. When the power returns after a power break, the output relay energises immediately if the level of liquid is above the threshold.

Monitoring two levels, filling function

Monitoring two levels, filling function
Legend
1-
Maximum level
2-
Minimum level
3-
Output relay : Up
(level : 2, function Up LS (Low Sensitivity : 250 Ω to 5 kΩ) or Up St (Standard Sensitivity : 5 kΩ to 100 kΩ) or Up HS (High Sensitivity : 50 kΩ to 1 MΩ). The output relay remains on as long as the level of liquid has not reached the maximum probe. As soon as the maximum level is reached the contact opens and pumping stops. When the level drops below the minimum level the contact closes again and pumping restarts to bring the level of liquid back up. Note : When monitoring the two levels the time delay preventing the wave effect is not in operation. When the power returns after a power break, the output relay energises immediately if the level of liquid is below the threshold.

ENRM

ENRM

ENRM

ENRM
PH 84870001

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