Manual Velleman VM148 Module (page 7 of 24) (English, German, Dutch, French)

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error indications - operation mode - temperature modification

3. ERROR INDICATIONS

UnFL – Underflow error: The meas-

ured temperature is lower than the

minimum measurable temperature

(min. temp° = -18°C of 0°F).

OvFL – Overflow error: The meas-

ured temperature is higher than the

maximum measurable temperature

(max. temp° = +60°C of 146°F).

SEnS – Sensor error: Sensor

problem or faulty connection.

4. ACTUAL OPERATION MODE

Press ENTER to display the operation mode of the tempera-

ture controller.

Heating mode: temp° A > temp° B

Cooling mode: temp° A < temp° B

5. TEMPERATURE MODIFICATION

6. FACTORY SETTINGS

This handy function allows you to modify the temperature

directly without reprogramming the max. and min. values

(temp° A and temp° B). the limit values will automatically shift

with the temperature modification.

Shortly press UP or DOWN in the temperature display to

display the average target temperature.

Repeatedly press UP or DOWN to rise or lower the

target temperature. Example: Set the target temperature to

25°C; temp° A and temp° B will automatically be modified to

26°C and 24°C.

Remove the power supply to the module. Hold ENTER

pressed and re-establish the power supply to the module.

DEF (default) will be displayed. Release the ENTER

button. The display will show the firmware version code.

Example: temp° A = 22°C,

temp° B = 20°C à target

temperature = 21°C.

Relay on

Temp. A

Temp. B

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Velleman VM148 Module Manual

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