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DESCRIPTION OF PARTICULAR PARAMETERS AND
Memorisation of Minimum/Maximum Temperature:
IR96 allows to record the minimum and the maximum temperature read by the 'ambient' sensor during an
interval which can reach up to 199 hours (more than 8 days). To activate this function, operate as follow:
1.
select parameter 'r5'=1. This is a 'Configuration' parameter
2.
visualise the parameter 'rt' (type F parameter). By pressing the button
long the min./max. temperature memorisation has been active (if the memorisation has just been
enabled, rt will be associated to the value '0'). If you want to restart the temperature memorisation, press
the button
during the visualisation of memorisation hours. The instrument will clear the memorisation
hours
and will start with monitoring again.
3.
to see the maximum temperature read by the sensor, refer to the value associated to rH
4.
to see the minimum temperature read by the sensor, refer to the value associated to rL
Warning: if the instrument is not connected to a UPS, a short power failure will clear the values rt, rL e rH.
When voltage is supplied again, the controller will automatically start the monitoring again with rt =0.
Functioning of the relay 4
With H1 = 0 relay 4 can be used as auxiliary output. If either A4 or A5=5 the output allows the automatic
lights management if the connection of the door switch to the selected input has been effected (Dig.In1 if
A4=5 or Dig.In2 if A5=5, see wiring diagram).
If H1 = 1 the fourth relay becomes an alarm output. The relay is normally de-energised and on alarm
condition the contact will close. If H1 = 2 the fourth relay is still an alarm output, but the relay is normally
energised (contact closed) and on alarm condition the contact will open. By pressing the button Mute the
relay commutes only if the cause of the alarm has been removed. The fifth relay is always active as an
alarm output: by pressing the button Mute this relay, unlikely the relay 4 with H1=1 or H2=2, always resets even
with an alarm pending.
Type of sensor (Accessible Only After Reset, See Ea, Eb, Ee)
The value of parameter /0 should be absolutely 0
Selection of Duty Setting (Parameters A6 and C4)
If the control sensor alarm (E0 flashing) is activated, the parameter c4 allows the compressor to function:
c4= value between 1 and 99: states the compressor On-time (expressed in minutes), followed by a fixed Off-
time equal to 15 min.;
c4=0: compressor always Off;
c4=100: compressor always On.
If an external alarm (Al or Ad flashing) is activated on the digital input (A4=1; A4=2), the parameter A6
allows the compressor to function:
A6= value between 1 and 99: states the compressor On-time (expressed in minutes), followed by a fixed Off-
time equal to 15 min.;
A6=0: compressor always Off;
A6=100: compressor always On.
Digital Inputs Configuration
Digital input 1 and 2 can take on different functioning modes according to the value given to the parameter
A4, relative to the ID1 input, and to A5 relative to Id2. The main: see the table "programmable digital inputs:
list of the options" at 33 page.
PERFORMANCES
61
the instrument displays how
Cod. +030220151 - Rel. 2.1 - 04/09/98
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