Follett REFNAT5-SD Installationshandbuch - Seite 7

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Controller Operating Instructions

1. Alarm buzzer stop key (BUZZER): Press this key to silence the buzzer in the event that the alarm

operates and the buzzer sounds.

2. Alarm test key (ALARM TEST): Buzzer will sound.

3. Set key (SET): Pressing this key activates temperature set mode. By pressing the key again after

setting, the set value is accepted.

4. Down Arrow (

): Pressing this down arrow key in the setting mode causes the numerical value to go

▼

down in 0.1 C increments. A long press of this key will enter offset mode. Offset mode is used to calibrate

the temperature display.

5. Up Arrow (

): Pressing this up arrow key in the setting mode causes the numerical value to go up in

▲

0.1 C increments. A long press of this key will enter or exit the key lock mode.

6. Door check (DOOR): This is lit when the door is open.

7. Alarm (ALARM): This is lit during alarm condition.

8. Temperature display: This indicator shows the chamber temperature, set temperature, or error code

REFNAT5-SD, REFNAT5-GD