17
Installation and Operating Manual
IP277, Rev DA
Mobrey MCU200 Series
February 2020
– Check for correct sensor operation whenever the gain is adjusted away from the normal
set point. Assume an overlap of 2 divisions between the “LO” and “HI” gain ranges.
– Check the incorrect operation has not been produced by incorrect setting of the
frequency selection switch or an external short circuit on the auxiliary input terminals.
– The electronics PCB can be checked by linking the sensor terminals 1 and 2 with a wire,
to simulate an oscillating sensor.
7.
Specifications
7.1
MCU201
Power supply
110/120 ±10%, 220/240 ±10%, 50/60 Hz
Installation categories
II-IEC60664 for 230 Vac supply.
III-IEC60664 for 115 Vac supply.
Pollution degree
2-IEC60664
Power consumption
6 VA at 240 Vac.
7.2
MCU203
Power supply
24 Vdc (20 V minimum, 30 V maximum).
Supply must be floating or have negative earth.
Current consumption
Maximum of 0.1 A.
7.3
General
Relay
DPCO, 5A at 230 Vac.
Normal state selectable energised/de-energised.
0.5, 2, 8, or 30 seconds selectable delay.
– Operates for change of relay state in one direction only. 50 ms in other direction.