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MNR7 level controllers are suitable to non viscous, non sticky liquids withoutmagnetic and solids particles. The liquids may not crystallize.
Switches are mounted in the guide tube; they are actuated by the magnetbuilt in the float, to allow 1 to 4 level detections within the application.
The housing is IP65 and the cable pass through a cable gland PG11. Wiring isdone on a screw terminal.On the lower end of guide tube, a blocking ring allows to take off the float beforeto fit the tube through a small diameter hole.
- Following is a cross table to built up your instrument.
Please, verify thematerial compatibility with your chemical fluid and the limits of pressure andtemperature with your process maxima.
- Our technicians may help you in MNR7 definition.
Always mention the fluidin contact, concentration, process temperature and pressure.
- Note the exact distance of contact(s) measured as of the sealing surface.Consider the minimum distance between two contacts (100 mm) and deadzone we indicate on the drawings.
- Caution:the switching power of the Reed contact is 60 VA; you may protectit with a power relay (such as ES2001, documentation N°250)
Housing: Painted aluminum – IP 65
Guiding Tube: Stainless steel DIN 1.4404 (AISI 316 L)
Float material: Stainless steel DIN 1.4571(AISI 316Ti
Float diameter: 91 mm
Float height:110 mm
Process connection:
BSP 1/2"
Option*: flange PN 10 (Code number): DN 100 (550 420)
* The flange DN 100 (option), allows an installationwithout float disassembling
Maximum length: 3 000 mm
Minimum length: 250 mm
Minimum specific weight: 750 g / L
Pressure higher limit: 25 bar
Temperature limits: -20…+110°C
Switching power capacity: 60 VA
Minimum distance between 2 contacts: 100 mm
Accuracy: ±2 mm
Hysteresis: 8 mm
Upper dead zone: 75 mm
Lower dead zone: 75 mm
