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))
Press adj
Press adj
(display will read ADJUST THE VALUE)
Press
hi
to increase value or
lo
to decrease value
Press
set
(within30 seconds or display will go back to normal & changes will be ignored)
For Quick Set of hi and lo Alarm Setpoint
Press hi or lo
Press adj
Use hi or lo to adjust value
Press adj to select ‘ENABLED’
Press set
(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
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
