Cod. +030220151 - Rel. 2.1 - 04/09/98
2
Main features of the Infrared series
Power supply
All the instruments of the Infrared series − except IR32P − come complete with WIDE RANGE power
supply, allowing you to power your units with either direct or alternating current, from 12 to 24Volt. The 'S'
model is also available with a UNIVERSAL or a HIGH range power supply that allow to extend the power
supply range: from 24 to 240V or from 110 to 240V respectively. All Infrared instruments fit automatically to
the voltage supplied.
With the UNIVERSAL and HIGH range power supply any external transformer to change from 24Vac to
240Vac or from 110 to 240V is not required. Such features simplify your work and provide the maximum
reliability as the controller is capable of adjusting perfectly any fluctuation of supply
IR32P is powered by means of the power card and can be supplied either with 24Vac or 240Vac.
Soft touch keypad
It is made of silicone for both functional reasons (especially when pressing the keys) and aesthetic reasons
(it matches the new lines and structures of the latest refrigeration units). The Infrared series is the result of
specific ergonomic choices designed to simplify all procedures. Setting or modifying a parameter, for
example, now requires the touch of just one button.
LED Display
The LED display shows two and half digits' ranging from -40 to +90ºC (-40/+130 with PTC sensor); the
temperature value appears with one decimal point (you can omit it by acting on the dedicated parameter)
ranging from -19.9 to +19.9. In addition there are up to 4 LED indicators (depending on the model) that light
up when the output they represent is ON. They will flash in case of external problems relative to the output
(see Multifunction input) or during active/current procedures.
Buzzer
All controllers come complete with an alarm buzzer upon request.
Remote control
To make it easier to set and display the working parameters, you can request your controller complete with
the Infrared receiver. In this case you will be able to use the remote control unit to perform any operation.
One remote control unit can be used for several IR32 instruments placed within the same room, with no
interference since each controller can be identified by a specific access code.
Duty setting
A completely new function allows the compressor to run even if the regulation sensor is damaged. In case of
short-circuit or open-circuit sensor, the compressor is instructed to start on the basis of time-intervals
(minutes) selected through the 'duty setting' parameter ('c4') and to turn OFF every 15 minutes (fixed time-
interval).
Multifunction input
The Infrared instruments come complete with a digital input that can be used in different ways, depending on
the value given to the parameter 'A4'. The multifunction input can be used to enable/disable defrost, to act
on serious alarm conditions requiring either the immediate (for example, high pressure alarms) or delayed
lockout of the unit (low pressure alarms).
Multifunction output
Some models come complete with a fourth relay for the remote alarm signal or to drive auxiliary ON/OFF
devices.
Keypad protection
The keypad and/or the remote control unit can be deactivated to prevent unauthorized personnel from
modifying settings (especially when the controller is located in a public area).
Continuous cycle
This function operates the ON routines of the compressor for a 't' time selected through a dedicated
parameter. This is particularly useful when a rapid fall of temperature is required.
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