Follett EREF4-KP0000 Handbuch für Installation, Betrieb und Wartung - Seite 8
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Change the Alarm Delay
The alarming feature is factory-set with a 5-min delay to avoid nuisance alarming. Follow these steps to program the delay
interval from 0 to 255 min.
1. Press SET and DOWN ARROW and hold for 3 seconds, until HY appears.
2. Press DOWN ARROW, until ALd appears
3. Press SET to display current delay setting.
4. Press UP or DOWN ARROW to change to desired delay interval.
5. Press SET to accept new value.
Power Supply Operation
Modular Power Supply unit mounted in the refrigerator is designed for continuous operation. It converts input 230 V 50 Hz
(or 220 V 60 Hz) into 12 V DC output voltage.
The power supply has a built-in battery charger that charges the maintenance-free rechargeable 12 V DC backup battery.
Power supply provides the Temperature Controller and the Data Logger with uninterruptible power (includes supply
from the battery - see "The Battery operation" information below).
As long as there is 12 V DC present on the power supply output terminals (includes supply from the battery), the green color
LED next to the power supply terminals is lit. To see if the LED is illuminated, it is necessary to remove the lower front
panel– only available for authorized person (see Fig.12 on page11).
The Battery Operation (in case of power failure)
The EREF series is equipped with battery backup for the Temperature Controller (display and temp. probe) and the Data
Logger.
Backup time is minimum of 48 hours. The refrigerator must be connected to 230 V 50 Hz for a minimum of 72 hours before
maximum battery is available.
Please note the lifetime of the battery is estimated to be 3 years, but the battery should be checked annually by
authorized personnel.
The Data Logger Operation
The Data Logger is supplied with 12 V DC from the power supply output (includes battery backup). When the
power is turned on, the red color LED placed on the data logger front panel comes on. Data logger records
temperatures measured inside the refrigerator. Measured data are stored in the data logger's built-in memory,
which can store 13100 records. While memory is full, every new record overwrites the oldest one.
Data Logger is connected to its dedicated temperature sensor, placed inside refrigerator's cabinet (see "Wiring diagram" on
page 12). The Data Logger has a USB interface on its front panel and a USB flash drive can be inserted into the USB port for
data collecting. The data collected on the USB flash drive may be downloaded to your personal computer for its further
treatment.
EREF Data Logger
1. On the USB Flash Drive there is 'G913 Interpreter.exe' special software file, which allows you to read data
archived in the Data Logger built-in memory.
2. Store the 'G913 Interpreter.exe' software file on your PC for any further use.
3. Read the information below and then install the software on your PC.
To Record Data on the USB Flash Drive
NOTICE: DO NOT remove the USB Flash Drive from the data logger USB
port/interface while data is being downloaded. If this caution is not observed,
the electronic devices may be damaged or destroyed.
1.
Insert the USB Flash Drive #00987180 (supplied with the refrigerator)
into Data Logger's USB interface.
2. The proper connection is indicated by the red color LED turning off.
3. The downloading process will continue for about 10 – 15 sec.
4. After the download process is complete, the red color LED will illuminate.
The USB Flash Drive can be removed from the data logger port/interface.
5. Plug in USB Flash Drive into your PC and check Flash Drive for the new folder created with its specific name
(i.e., G913_001). The folder's name informs about type of data logger and its service number.
6. Convert this file by using provided software G913 Interpreter.exe. Open the file in the Graphic Visualisation
software to display the data. Using the instruction #
you can set the chart in a way that fits to your data stored.
8
EREF Refrigerator
00985432
supplied with the refrigerator for that software
Operating status
indicating LED
USB port