MR50, Limit Value Switch for Standard Signals

Item number: MR50ff

  • Standard Signal Input: 0/4...20mA, 0/2...10VDC
  • Programmable measuring range
  • 2 or 4 Relay alarm outputs

Category: Limit Monitors

Auxiliary Voltage /Number of Outputs

starting from 399,84 €

including 19% VAT.

There are variations of this item. Please select the variation you wish.


MR50, Limit Value Switch for Standard Signals

The limit switch MR50 is used to monitor measured values.
The display range and units for the measured value can be shown on the display.
An integrated transmitter supply enables the direct connection of 2-wire sensors.
The device offers simple programming, has max. 4 alarm contacts (relay changeover) and optionally via a parameterizable, galvanically isolated analog output 0/4...20mA; 0/2...10V.
An Ex version of this limit switch is also available on request.
Technical data:
Auxiliary voltage: 230VAC ±10% or 24VDC ±15% (select when ordering!)
Power consumption: max. 5VA
Working temperature: -10...+55°C
CE conformity: EN 61326-1:2013
                              EN 60664-1:2007
Input: 0/4...20mA; 0/2...10VDC
Ri: Current input 10 Ohm,
      Voltage input 10 kOhm
Error detection: Wire break in the measuring circuit
Basic accuracy: <0.1%, ±1 Digit
Transmitter supply: 24VDC, max. 30mA
Relay changeover outputs: <250VAC <250VA <2A (select 2 or 4 Relays when ordering!)
                                                cos phi ≥0.3, <300VDC <40W <2A
Optional analogue output: 0/4...20mA, load < =500 Ohm;
                               0/2...10V load >500 Ohm, electrically isolated
Output switches automatically (depending on load)
Accuracy: 0.2%;TK 0.01%/K
Error behavior in the event of a wire break in the measuring circuit:
-> Analogue output: 0mA, < 3.6mA or >21.5mA
-> Alarm contact(s): min. or max. programmable
Display: Graphic LCD Display mit 128 x 64 pixels, with white background lighting
Housing: polyamide (PA) 6.6 , UL94V-0 according to DIN EN 60715
Dimensions: 50 x 100 x 110mm³ (W x H x D)
Weight: ca. 450g
Connection: Screw terminals 0.14...2,5mm² (AWG 26...14)
Protection class: Housing IP30, terminals IP20, BGV A3
Galvanically isolated analogue output 0/4...20mA, 0/2...10VDC

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