COMEM TWM Serie Manual De Instrucciones página 4

Safety
Safety instructions
Make sure that any person installing and operating the
thermostat:
• Is technically qualified and competent.
• Fully complies with these assembling instructions.
Improper operations or misuse could cause danger to:
• life and limb
• the equipment and other assets of the operator
• the equipment proper function.
Safety instructions in this manual are shown in three
different forms to emphasize important information.
WARNING
This information indicates particular danger to life and health.
Disregarding such a warning can lead to serious or fatal injury.
CAUTION
This information indicates particular danger to equipment and/
or other property of the user. Serious or fatal injury cannot be
excluded.
This notes give important or specific information concerning the
equipment.
Safety notes on the equipment operation
Electrical installation is subject to the relevant national
safety rules.
It is mandatory to connect the grounding cable because of
safety reason.
CAUTION
Installation, electrical connection and fitting the device have to
be carried out by qualified personnel and only in accordance to
this instruction manual.
It is responsibility of the user to make sure that the device is
used for specified application only.
For safety matters, please avoid any unauthorized and
improperly works.
WARNING
All relevant fire protection regulation must be strictly observed.
4
NOTE
Product description
TWM 7284 / TWM 7287
These devices are designed to measure the temperature
of the insulating oil inside transformer's tank, reactors and
similar equipment. Adjustable switching system provides
the desired alarm/trip signals. It's not present any dial to
show the measured temperature.
WARNING
Fully read this instructions manual before utilizing the device.
Installation
CAUTION
The operating and the installation requirements described in
this manual must be strictly followed. If not, the device can be
damaged or a malfunction can occur.
Mounting of the device
Device shall be attached on the transformer according the
selected mounting fixing system:
• the 7284 model is realized without the capillary; the
assembly is carried our with the connection of the bulb;
• the 7287 model is realized with the capillary; it can be
assembled through rigid screw or elastic suspension,
basing on the chosen type.
Relevant dimensions are indicated in the drawings in
Appendix A.
The device should be installed vertically. Device installa-
tion position shall be selected in order avoid any irregular
vibration and/or electromagnetic fields above the applica-
ble standards.
Capillary tube (only for 7287 model)
Roll out the capillary tube avoiding kinks and loops. Do not
rip, cut, pull, or bend this tube. Do not handle the device
through the capillary tube. Roll up the excess tube with a
minimum winding diameter of di 40cm.
Sensitive bulb
Place the sensitive bulb into the transformer oil pocket
(DIN pocket 42554 or similar) which has been previously
filled completely with transformer oil (in case of DIN
42554 pocket, the oil quantity inside the quantity must be
80ml).
THERMOSTAT TMW