Each Mobrey ultrasonic control system requires a
sensor to suit the specific application, plus a control unit.
These installation instructions cover the Mobrey control
units in the MCU200 series.
1. Sensor installation
2. Control unit installation
3. Applications:
3.1
Gain adjustment
3.2
Liquid level alarm
3.3
Pump control and latching arms
3.4
Blanket or interface detection
4. Spare parts and fault finding
Contents
Specification
Power supply
MCU 201
110/120 ±10% 220/240±10% 50-60 Hz
Installation category
MCU 201
II-IEC60664 for 230V ac supply III-IEC60664 for 115V ac supply
Pollution degree
MCU 201
2-IEC60664
Power consumption
MCU 201
6VA approx at 240 Vac
Power supply
MCU 203
24V dc (20V Min, 30V Max) Supply must be floating or negative earth
Current consumption
MCU 203
0.1A Max
Relay contact rating(s)
5A at 230V ac DPCO
Relay state
Normal state selectable energised/de-energised
Relay delay
0.5,2,8,30 seconds selectable. Operates for change of relay state in
one direction only. 50msecs in other direction. (Approx.)
LED indicators
Red for alarm, Green for normal, Yellow for cable fault
LED state
Green/Red indication selectable for either sensor state
Sensors compatible
Any Mobrey ultrasonic gap, Hisens or Interface sensor
Sensor frequency
Switch selects electronics operational at either l MHz or 3.7 MHz
Cable check
Option selectable for certain sensors
External input
Used to hold relay de-energised to provide pump control
Box size
200 x 120 x 75mm
Fixing centres
188 x 88mm
Box rating
IP65 Polycarbonate (clear lid)
Temperature
-40
o
C to 55
o
C ambient
Holes for glands
3 off 16mmØ
EMC
EN61326
Safety
EN61010-1
Weight
equipment weight (mass) 0.700 Kg
WARNING:
If this equipment is used in a manner not specified
by the manufacturer, the protection provided may
be impaired. All installation and commissioning of
this equipment must be carried out by electrically
competent persons
Mobrey ultrasonic liquid level control
or sludge blanket or interface detection
systems using control unit type MCU200
MCU200
Installation Leaflet
IP227, Rev.
C
March
20
19
MCU200 Installation, Operation &
Maintenance Instructions
www.
delta-
mobrey
.com
