Follett EREF4-00000 Panduan Pemasangan, Pengoperasian, dan Servis - Halaman 7
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Controller Security
The controller panel can be locked to prevent inadvertent or unintentional programming changes. In locked mode, the
controller will display cabinet temperature and cut-out set point only.
To lock the Controller
1. Press the UP and DOWN ARROW buttons together for 3 seconds, until "PoF" displays (will flash three
times).
2. Programmer is now locked.
To unlock the Controller
1. Press UP and DOWN ARROW buttons together for 3 seconds, until "Pon" displays (will flash 3 times).
2. Programmer is now unlocked
"Sleep" Function
You may not want the Follett temperature display when using a third-party temperature monitoring system with its own
temperature display. You can put the Follett controller "to sleep" to avoid confusion. The compressor icon remains
illuminated when the compressor is running (Fig. 8).
1. Press BOTTOM RIGHT button to put display to sleep.
2. Press BOTTOM RIGHT button to return to display mode.
Alarming Functions –––––––––––––––––––––––––––––––––––––––––––––––
Note: The refrigerator is equipped with the ON/OFF switch for the
temperature controller and the data logger. The switch is placed
in line with controller and data logger. When switching off the
refrigerator, the data logger and the alarm will be also turned off.
Follett's controller provides local high and low air temperature alarming. If
air temperature goes above or below the set temperature range, an audible
alarm sounds and the display flashes. Alarming automatically stops when
the temperature returns to normal values.
Most refrigerated medications should be stored between 2 C and 8 C. The
controller is factory-set to maintain product temperature at 4.8 C.
Note: The alarm function has a battery backup as long as the 'controller switch' is ON. The battery backup is
provided through the power supply AC/DC unit from the maintenance-free rechargeable battery mounted next
to power supply unit (see "Wiring diagram" on page 12 and drawing above EREF "Hardware" on page 17).
Controller is factory-set with a high-alarm default setting of 38 C and a low- alarm default of -30 C with a 5
min delay on alarm.
Independently from the controller alarm, you may want to consider Follett's Temperature Surveillance Module
TSM (#00962944) for maximum product security (the TSM has an independent alarming function and backup
battery).
If you install in the EREF unit an optional temperature surveillance module, you can use its alarming functions as well.
Because the module provides high and low product temperature alarms and product temperature display, Follett
recommends that you disable the controller alarming and put the controller display to 'sleep' (see "Sleep" Function on page
7). Refer to the Temperature Surveillance Module Accessory instruction (00963082) shipped with the product for set-up
and operation instructions.
To Set Low-Temperature Alarm Value
1. Press SET and DOWN ARROW and hold for 3 seconds, until
HY appears.
2. Press DOWN ARROW, until ALL appears.
3. Press SET to display current setting.
4. Press UP or DOWN ARROW to change to desired
temperature.
5. Press SET to accept new value.
To Set High-Temperature Alarm Value
1. Press SET and DOWN ARROW and hold for 3 seconds, until HY appears.
2. Press DOWN ARROW, until ALU appears.
3. Press SET to display current setting.
4. Press UP or DOWN ARROW to change to desired temperature.
5. Press SET to accept new value.
To Mute the Alarm
1. Press any key to mute the alarm.
2. The alarm will not sound until another alarm occurs.
Fig. 8
EREF Refrigerator
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