75642055 - Temperature Controller HAGER - Free user manual and instructions
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| Product Type | Temperature Controller |
| Brand | Hager |
| Model | 75642055 |
| Dimensions (H x W x D) | 80 mm x 80 mm x 30 mm |
| Weight | 150 g |
| Power Supply | 24 V AC/DC |
| Display Type | Digital LCD with backlight |
| Temperature Range | -10 °C to +50 °C |
| Accuracy | ±0.5 °C |
| Control Output | Relay (1 A @ 24 V) |
| Sensor Type | NTC thermistor (10 kΩ at 25 °C) |
| Mounting | Wall mount or flush mount (standard 60 mm box) |
| Protection Rating | IP30 |
| Operating Temperature | 0 °C to +50 °C |
| Storage Temperature | -20 °C to +60 °C |
| Functions | Heating and cooling control, setpoint adjustment, hysteresis setting, frost protection, key lock |
| Maintenance | Clean with a dry cloth; do not use solvents |
| Safety | Over-temperature protection; complies with EN 60730 |
| Spare Parts | Replaceable sensor (part no. 75642055-SENSOR); front cover (part no. 75642055-COVER) |
| Repairability | Repairable by qualified technician; user replaceable fuse (internal) |
| Warranty | 2 years |
Frequently Asked Questions - 75642055 HAGER
How do I install the Hager 75642055 temperature controller?
Mount the device on a standard 60 mm wall box. Connect the power supply (24 V AC/DC) and the load (heater or cooler) as per the wiring diagram in the manual. Attach the NTC sensor to the desired location.
What is the temperature range of the controller?
The controller measures and controls temperature from -10 °C to +50 °C with an accuracy of ±0.5 °C.
Can I use this controller for both heating and cooling?
Yes, the controller supports both heating and cooling modes. You can set the desired mode and adjust the setpoint accordingly.
How do I set the desired temperature?
Press the set button to enter setpoint adjustment mode, then use the up/down buttons to change the value. Press set again to confirm.
What does the hysteresis setting do?
Hysteresis defines the temperature difference between switching on and off to prevent rapid cycling. Adjust it in the advanced menu (default 1 °C).
How do I enable frost protection?
In the menu, select frost protection mode. The controller will maintain a minimum temperature (e.g., 5 °C) to prevent freezing.
Why is the display showing an error code?
Common error codes: E1 (sensor short circuit), E2 (sensor open circuit). Check the sensor connection and replace if necessary.
Can I lock the keypad to prevent accidental changes?
Yes, press and hold the up and down buttons simultaneously for 3 seconds to lock or unlock the keypad.
How do I clean the controller?
Use a soft, dry cloth to clean the surface. Do not use water, solvents, or abrasive cleaners.
Where can I find spare parts or service?
Contact Hager customer service or an authorized distributor. Spare parts include the temperature sensor (part no. 75642055-SENSOR) and front cover.
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USER MANUAL 75642055 HAGER
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Product information
Brand : HAGER
Model : 75642055
Category : Temperature Controller