PDF info folder
MRF-M

Milk temperature regulator MRF-M


Milk temperature regulator in flat display housing
(Front panel mounting, super flat)

The microprocessor-controlled milk cooling temperature regulator MRF-M is used to control agitator motors and refrigeration compressors on milk cooling equipment.

  • Easy operation via three work levels
  • 2 freely selectable target temperatures
  • Various intermediate stirring functions
  • Intermediate stirring times freely programmable
  • Buttons for “Target temperature switchover” and “Intermediate stirring”
  • Option of switching to “Permanent stirring”
  • Automatic subsequent stirring
  • Adjustable cooling start delay
  • Freely selectable target temperatures and hysteresis
  • LED display of agitator and compressor status
  • Target temperature limits freely adjustable
  • Lockable buttons to prevent changes to target tempe-rature
  • Alarm in the event of sensor short-circuit/sensor fault (adjustable relay switching state in event of fault)
  • Adjustable minimum action time and minimum pause time for output relays
  • Automatic parameter storage without data loss when a power-cut occurs

  Connection
 


  Technical data

Operating voltage

230V AC +/-10%, 50/60 Hz or
115V AC +/-10%, 50/60 Hz

Relay contacts

2 voltage-free make-contacts

max. switching current

each 12 A AC1

max. switching voltage

250 V ~

Display

13 mm LED - Display, 3 digits

Display range

-99 .. 999

Temperature resolution

0,1°C

Sensor type

KTY 81-210

Sensor cable lenght

2 metres (or as required)

Measurement range

-5° .. +70°C

Target temperatur T1*
Target temperatur T2*

factory-set to 8°C
factory-set to 4°C

Control type

two-step regulator

Hysteresis*

0,1 K to 99,9 K
(standard adjusting 0,7 K)

Stirrer
- resting time (interval) *
- stirring time *


factory-set to 20 min.
factory-set to 2 min.

Housing
- front dimension
- front panel cut out
- insertion depht


68 x 106 mm
56 x 87 mm
45 mm

Protection (housing front)

IP 65

Connection

Screw terminals

Environment specifications:
- Operation temperature
- Storage temperature
- max. humidity


0° .. +50°C
-20° .. +70°C
75% (no dew)

* freely adjustable


  Optional

The anti-splash cover protects the regulator’s electronic components inside the switchbox.

   
   

Please give us a call:   +49 (0) 26 38 93 20-0

WELBA GmbH
Electronic Control Systems

Gewerbepark Siebenmorgen 6
D-53547 Breitscheid

t  +49 (0) 2638 / 9320-0
f  +49 (0) 2638 / 9320-20

info@welba.de

Customer special solutions Products for milk technology german version Produkts for industry and other sectors Home