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Quick Links
Parameter Setting Example via Menu
To Adjust Hi alarm value
Press mute & adj together and hold
Press res (once)
Release mute & adj
Press hi 7 times
(display will read HI ALM = (Value))
(display will read ADJUST THE VALUE)
Press hi to increase value or lo to decrease value
(within30 seconds or display will go back to normal & changes will be ignored)
For Quick Set of hi and lo Alarm Setpoint
Use hi or lo to adjust value
Press adj to select 'ENABLED'
(within 30 seconds or display will go back to normal & changes will be ignored)
Abacus Instruments;
13C Old Bridge Way, Shefford, Beds., England , SG17 5HQ
Phone; +44 (0)1462 638200 Fax; +44 (0)14612 638201 www.abacusinstruments.com
Press adj
Press adj
Press set
Press hi or lo
Press adj
Press set
MPA2A Alarm
Instructions for use
Note: The internal battery link between terminals 6 & 7 has been removed for shipping.
This link must be remade for the unit to operate.
Connections:-
240V ac Supply
Terminal 1 (Live)
Terminal 2 (Neutral)
Terminal 3 (Earth)
Battery Link
Terminal 6 & 7
Alarm Relay
Terminal 8 (Common)
Terminal 9 (N/C)
Terminal 10 (N/O)
Note: The relay is fail safe hence N/C contacts
are closed when unit is in alarm condition
Buzzer
Terminal 11 +
Terminal 12 –
Defrost Switch
Terminal 13 & 14 (Note Closed cct = Defrost)
Door Switch
Terminal 15 & 14 (Note Closed cct = Alarm) (Factory selectable)
PT1000 sensor
Terminal 23 Red (GND)
Terminal 24 White
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Summary of Contents for ABACUS MPA2A
- Page 1 Parameter Setting Example via Menu MPA2A Alarm To Adjust Hi alarm value Instructions for use Press mute & adj together and hold Press res (once) Release mute & adj Press hi 7 times (display will read HI ALM = (Value))
- Page 2 NOTE. Where used the alarm delay function should not be set to less than 5 minuites. i.e set to 0 (default) or >5 mins Alarm Parameters Mute Delay Set in minutes 0 – 99, this is the period that the buzzer will be muted for if the ‘‘mute’’ button is Operator Settings pressed following an alarm.