Contrel CTT4 User Manual

CTT4 instruction manual IM301-U v2.1 pag. 4 / 8
PROGRAMMING OF THE DEVICE
When the device is switched on, on the display will flash the index of the internal software: later the device starts to
display the temperature read on the measure input.
To enter in the programming phase press the button SET for some second up to light the relative LED of signalling SET.
The settings are indicated in sequence like showed after; to go out of the programming phase without to modify the
values it’s necessary to press SET without to confirm with the ENTER key the data modified.
To modify the value or the status it’s necessary to use ⇐ and ⇒ keys and the ENTER key to store the modification.
The pressure of the ENTER key move automatically the programming at the successive function or value.
Selection of the HOLD function
The function Hold is the first function to set in the menu programming (SET): in this phase of programming the HOLD led
switch on.
The Hold function allows to store the alarm condition that can be rearmed only manually with the RESET button when the
temperature are lower than the threshold set.
If this function is disabled it’s possible to rearm the ALARM with the RESET button even if the temperature is higher than
the threshold set, while the value of temperature come back under the threshold set the alarm will be automatically
deleted.
To set the Hold function it’s necessary to use the ⇐ and ⇒ keys:
OF F function disabled
ON function enabled
Press the ENTER key to confirm the operation.
Selection of the number of active inputs
After the setting of the Hold function, it’s possible to select the number of activated inputs.
It’s possible to select between 3 or 4 active inputs; in case of 3 active inputs
the display T4 remain off.
Select 3 or 4 inputs with ⇐ and ⇒ keys
Confirm with ENTER.
Control ventilation
After the selection of the number of inputs, the FAN led will switch on to indicate the programming of the ventilation
control.
If 3 inputs are selected the following setting are available:
ventilation control inhibited;
fun control active on 3 inputs;
Confirm with ENTER.
If 4 inputs are selected the following setting are available:
ventilation control inhibited;
fun control active on 3 inputs;
control active only on fourth input;
Confirm with ENTER.
Selection of the threshold of switch on and switch off ventilation
To program the threshold of enable and disable ventilation it’s necessary to select the modality of functioning ventilation.
Selection threshold of disable ventilation
The FAN led on, with fixed light indicates this phase of programming.
With ⇐ and ⇒ keys to select the value of temperature indicated on display
Interval of programming from 5°C up to the threshold of enable ventilation -1°C
Confirm with ENTER.
Selection threshold of enable ventilation
The fan led on, with flashing light indicates this phase of programming.
With ⇐ and ⇒ keys to select the value of temperature indicated on display
Interval of programming from disabling threshold +1°C up to 200 °C
Confirm with ENTER.
Selection of the alarm and tripped threshold
The set phase of the alarm thresholds start from the programming for the measure channel number 1.
The ALARM led on indicates the programming of the alarm threshold:
With ⇐ and ⇒ keys to select the value of temperature
Interval of programming from 5°C up to the tripping threshold -1°C
Confirm with ENTER.
The TRIP led on indicates the programming phase of the tripping threshold.
With ⇐ and ⇒ keys to select the value of temperature
Interval of programming from alarm threshold + 1°C up to 200°C.
Confirm with ENTER.
Repeat the same operation for the measure channels successive.
Set HOLD modality T1-T2 T3-T4
HOLD mode disabled
HL D Of f
HOLD mode enabled
Hl d o n
Set active inputs T1-T2 T3-T4
Active inputs: CH1 CH2 CH3
Ch 3
All active inputs
Ch 4
Set with 3 active inputs T1-T2 T3-T4
ventilation control inhibited
f a n o f f
fun control active on 3 inputs
F a n On
Set with 4 active inputs T1-T2 T3-T4
ventilation control inhibited
f a n o f f
fun control active on 3 inputs
F a n On
control active only on fourth input
f a n 4

Contrel CTT4 Specifications

General

Brand	Contrel
Model	CTT4
Category	Measuring Instruments
Language	English