STUDER INNOTEC
COMPACT
User manual COMPACT V4.0 E 19
Caution: No external voltage should be connected to this Input Control.

4.11 The Temperature sensor

Operating voltage of lead-acid batteries change depends on the
temperature. To correct the operating voltages according to the actual
temperatures, a temperature sensor can be connected to the COMPACT.
The compensation through the sensor is –3mV/°C/Cell.
Order Number: CT-35
Dimensions: H x B x T / 58 x 51.5 x 22mm
5 Programming

5.1 Standard setting

The COMPACT is delivered with the default setting following:
5.1.1 Working mode
The working of the charger, the inverter and the transfer are described in chapter 5.3/5.4/5.5.
5.1.2 Battery voltage
Low voltage 11.6V / 23.2V / 46.4V
Float Charge 13.5V / 27.0V / 54.0V
End of Charge Voltage 14.4V / 28.8V / 57.6V
Equalization 15.3V / 30.6V / 61.2V
Absorption Time: 2 Hours
5.1.3 Auxiliary contact
Active in case of defect or manual turn off with the LED 10/11/12/13

5.2 Reset value

When the COMPACT is to be connected to a battery or after an interruption (RESET), it is always
programmed with these standard settings.
In order to get to these settings during operation you must press the three Push Buttons 19/20/21
simultaneously for a minimum of 2 seconds.

5.3 Battery voltages and absorption time

The voltage levels (low voltage, float charge, end of charge and equalization) and the duration of
the absorption charge can be changed.
The display of these voltages and the times in the program mode are in accordance with the
diagram shown below:
5.3.1 Table of voltage and timing threshold
Low voltage
LED 13
Float Charge
LED 12
Absorption
LED 11
Equalization
LED 10
Absorpt.
Time
LED 10->13
LED 12V 24V 48V 12V 24V 48V 12V 24V 48V 12V 24V 48V 12/24/48V
14 12.0 24.0 48.0 13.7 27.4 54.8 16.2 32.4 64.8 16.2 32.4 64.8 4 h
15 11.8 23.6 47.2 13.6 27.2 54.4 15.6 31.2 62.4 15.9 31.8 63.6 3 h
16 11.6 23.2 46.4 13.5 27.0 54.0 15 30 60 15.6 31.2 62.4 2 h
17 11.4 22.8 45.6 13.4 26.8 53.6 14.4 28.8 57.6 15.3 30.6 61.2 1 h
18 11.2 22.4 44.8 13.3 26.6 53.2 14.2 28.4 56.8 15 30 60 0 1Min.
The heavy printed values show the standard settings.