ES Series Lab Freezer 16
Remote Alarm Contacts
All ES Series laboratory freezers include remote alarm contacts and these
terminal
contacts enable the user to
connect to a remote-control station; these contacts can be found
on
the rear of the
cabinet and are different for
98L and 232L as shown.
Remote Alarm Principle of operation
The remote alarm function of this appliance has been designed to go “OPEN CIRUIT” in the event of any of the alarm
conditions listed in the table below
WARNING: These contacts must only be accessed by a competent
electrician.
98L Remote alarm contact -
232L Remote alarm contact -
Remote Alarm Contact Conditions (Default)
Normal condition (No Alarms)
High or low air temperature alarm
High or low simulated load temperature
Table 10. Remote Alarm Contacts
Remote Alarm Contact Data
CAUTION: In the case where the facility needs the contacts to close for an alarm condition, refer to
“Changing the Remote Alarm Contacts” section for reversing the relay condition.
wires into red/black
terminal by depressing
lever, insert and release.
Insert remote access wires
into terminal by depressing
with small flat driver, into
positions 1 & 3 as shown
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