ELRO KT 250 Manual - Page 7

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2.9

Temperature Span

Span is the temperature difference between the turn ON and OFF

temperature. The factory pre-set span is 1°C. For example, control

temperature setting is 20.0°C. The heater will be operated when

the room temperature drops to 19.5°C and will be turned off when

the temperature rises to 20.5°C.

2.10 Temperature Measurement

'HI' will be shown when temperature is above 40°C and 'LO' will be

shown when temperature falls below 0°C.

2.11 Power Installation

The thermostat is operated at two AAA size 1.5V Alkaline

batteries. To power-up the unit, installs battery as shown in above

section "Battery Installation" and slide the ON/OFF switch to ON

position. When power is applied for the first time or reset button is

pressed, the display will show as follows:

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0:00

When power is applied for the first time or reset button is pressed,

the display will show as follows:

If the display is different as shown, use a fine probe such as

straightened paper clip to gently push the reset button.

TIME

0:00

DAY

MONDAY

TEMPERATURE

22°C

OUTPUT

OFF

°c

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