West Control Solutions TB 40-1 Temperature Limiter - Manual (Page 29)

w If the controller is connected with other units in the same signal loop, check
that the equipment in the output circuit is not affected before switch-on. If
necessary, suitable protective measures must be taken.
w The unit may be operated only in installed condition.
w Before and during operation, the temperature restrictions specified for
controller operation must be met.
SHUT-DOWN
For taking the unit out of operation, disconnect it from all voltage sources and
protect it against accidental operation.
If the controller is connected with other equipment in the same signal loop, check
that other equipment in the output circuit is not affected before switch-off. If ne-
cessary, suitable protective measures must be taken.
MAINTENANCE, REPAIR AND MODIFICATION
The units do not need particular maintenance.
a
Warning
When opening the units, or when removing covers or components, live parts and
terminals may be exposed.
Before starting this work, the unit must be disonnected completely.
After completing this work, re-shut the unit and re-fit all covers and components.
Check if specifications on the type label must be changed and correct them, if ne-
cessary.
l
Caution
When opening the units, components which are sensitive to electrostatic dischar-
ge (ESD) can be exposed. The following work may be done only at workstations
with suitable ESD protection.
Modification, maintenance and repair work may be done only by trained and aut-
horized personnel. For this purpose, the PMA service should be contacted.
a
The cleaning of the front of the controller should be done with a dry or a wetted
(spirit, water) kerchief.
Safety hints
TB40-1 29