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PTC sensor for temperature measurement |
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Compensation for sensor tolerances and wire resistance |
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Several thermostats may be controlled by 1 sensor |
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DC outputs for external regulation by PLC control |
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Safeguarded in case of sensor failure |
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| Product Range |
| Type |
Product - add K to type no for cooling version |
EAN-Nr |
| ETT-2-1951 |
230V, -30/+30ºC |
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| ETT-2-1952 |
230V, +10/110ºC |
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| ETT-2-1953 |
230V, 0/+40ºC |
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Accessories |
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| ETPD-x |
Analogue instrument available in 3 different scales |
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| ETPP |
Ext. potentiometer unit for panel mount |
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| ETF-..95 |
Temperature sensor of various types |
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| UNITEMP FAMILY CONCEPT: |
UNITEMP is a designation for a series of electronic thermostats for regulation and monitoring of cooling and heating installations as well as industrial plants where accurate regulation is desired.
The UNITEMP units make use of the same types of sensors and accessories. An external control unit ETPP may control 1 or 2 thermostats simultaneously, and regulation by external DC signal is possible, eg from a PLC control. The units are installed on DIN rails. |
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| FUNCTION |
For ON/OFF regulation of cooling/heating plants in two steps.
Available for cooling or heating function.
3 types cover a scale range from –30 to +110ºC. Equipped with two S.P.S.T., 6A.
The distance between activation of relay 1 and relay 2 may be adjusted from 0-10% of the scale range with the help of control knob DIFF: |
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| Controls |
The SET control serves to set the desired temperature. With a coin inserted into its slot the scale may be adjusted in accordance with a reference thermometer. Thus, a high accuracy throughout the entire scale is ensured.
The DIFF control enables the temperature differential
to be adjusted from 0,3 to 10% of the scale range.
The SCALE ADJ control allows compensation for sensor tolerances and conductor resistance.
In case of an error in the sensor circuit, the output relays will always fall out. |
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| Step distance: |
| Scale range / Type |
Adjustable distance |
Step difference |
| -30/+30ºC |
0/+6ºC |
0,5ºC |
| 10/110ºC |
0/+10ºC |
0,8ºC |
| 0/+40ºC |
0/+4ºC |
0,3ºC |
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| Technical data |
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| Power consumption |
3V A |
| Ambient temperature |
-20/+50ºC |
| Accuracy |
±1ºC |
| Relay output |
2 S.P.S.C., max. 6A, 250V resistive |
| Expected lifetime |
2X10 switch functions at max. load |
| DC output |
0,5-5,5V DC, Max. 20mA |
| Dimension & weight |
Din rail mounting.
Width 52.5mm and height above rail
max. 56mm. Weight 190g |
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| Interconnections: |
An analogue instrument, type ETPD, may be connected to display the sensor temperature.
Voltage outputs 0,5 to 5,5 VDC may be utilized for remote control and data transfer to PLC systems etc.
The setpoint may be controlled externally via External Potentiometer, type ETPP. |
| Relay functions: |
Cooling function:
At calls for cooling, the relays are activated stepwise.
Relay 1 is activated first. Green LEDs are lit.
Heating funktion:
At calls for heating, the relays are activated stepwise.
Relay 2 is activated first. Red LEDs are lit. |
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