STATUS SCIENTIFIC CONTROLS MCU3 - 9 Specifications; Mcu3 & 4 Control Units

STATUS SCIENTIFIC CONTROLS
MCU System Installation and Hardware Configuration Manual
TD06/001
Issue:
6
Change Note:
1696
Page 9-1
9 SPECIFICATIONS
9.1 MCU3 & 4 Control Units
Note:
MCU1 and MCU2 now obsolete.
MCU3
MCU4
Size (nominal) ‘mm’
475 x 300 x 208
475 x 538 x 208
Weight (approx)
16Kg
30Kg
Operating Temp
-10ºC to +50ºC
Storage Temp
-20ºC to +50ºC
Humidity Range
0 to 95% R.H. Non-condensing
Input Voltage
24V DC, or 120/230V AC 50/60 Hz Tolerance  10%
Environmental Rating
IP65
Note:
For compliance with UL3101-1 and CSA22.2 No 1010.1, the following environmental conditions apply:
Indoor use; Altitude up to 2000m.
Temperature 0 to 40C.
Maximum relative Humidity 80% decreasing linearly to 50% relative humidity at 40C.
Installation Category (Over Voltage Category) II.
Pollution Degree 2.
User Interface
Display
Backlit 240 x 64 dot Liquid Crystal Display (LCD)
Keyboard
8 button multifunction keypad
LED Indications
Red
Green
Yellow
Indicates alarm condition.
Indicates power ON (flashes when powered from int. batteries)
Indicates fault condition.
Input Modules
Number of channels
8 max
16 max
Signal Inputs
4-20mA Current Loop from 24V source.
4-20mA Current Loop sink to 0V.
3-Wire Pellistor Systems.
DC Voltage Input.
Analogue Output
4-20mA Current source proportional to detected signal.
4-20mA Current sink proportional to detected signal.
1-5V Voltage output proportional to detected signal.
3 – Relays
Contacts
Rating
1 relay assigned to each alarm level (low, medium and high).
Double Pole Changeover Contacts (voltage free).
5A 240V AC.
Distribution Module
3 – Common Outputs
For specification of common outputs, refer to section 1.3
External Reset
Connection for normally open switch contacts (5V max present at terminals).
Common Relay Module
4 – Common Relays
1 Relay assigned to each alarm level (low, medium, high).
1 Relay designated as fault relay.
Double Pole Changeover Contacts (voltage free).
5A 240V AC.