Installation Conditions And Testing; Dial-Type Thermometer; Assembly; Assembling The Zt-F2.1 Transformer Temperature Transmitter - Messko ZT-F2.1 Instrucciones De Operación

3

Installation conditions and testing

4

Dial-type thermometer

5

Assembly

Fig. 1
installed with a replacement sensor (accessory). The measured
value can also be transferred to a moving-coil or digital display,
for example, via the installed Pt100 resistor or a 4...20 mA
analog output.
3 Installation conditions and testing
The ZT-F2.1 transformer temperature transmitter is designed to
be installed in a DIN EN 50216-4 type A1 thermometer pocket.
Other screwed glands are available as options. The thermome-
ter pocket must be located on the transformer cover near the
largest oil flow. This will ensure a satisfactory heat exchange
between the coolant, thermometer pocket and the temperature
sensors in the ZT-F2.1. For correct heat transfer, the thermo-
meter pocket must be filled with approx. 50 ml of oil at room
temperature (do not insert an aluminum foil or similar). The hot-
spot temperature may not be indicated accurately if these prere-
quisites are not met. If you want to test the ZT-F2.1 transformer
temperature transmitter before installing it on the transformer,
you must create the same conditions in the test set-up as occur
on the transformer (see "Testing conditions" below).
Testing conditions
1. Controlled movement of the oil bath.
2. Thermometer pocket installed in the oil bath.
3. Thermometer pocket is filled with approx. 50 ml of oil at
room temperature.
BA2526030-07
4. ZT-F2.1 installed in the thermometer pocket.
5. Pt100 or 4...20mA analog output (optional) is connected
(refer to chap. 6.2/6.3).
Insert the sensor of the dial thermometer until it reaches the
stop (approx. 215 mm).
6. The bath temperature should not exceed 30 °C, or the heat
emitted via the double thread would distort the transformer
conditions.
7. Allow the sensor to adapt to the bath temperature for at
least 30 minutes.
8. The measuring cycle until the set temperature gradient is
reached should take at least 20 minutes.
4 Dial-type thermometer
The ZT-F2.1 can be combined with various dial-type ther-
mometers and analytical instruments. Always follow the
instructions provided when installing such instruments. Please
see Section 5.2 if using a replacement sensor.
5 Assembly
CAUTION
The operating and installation requirements described in
this manual must be strictly complied with. If not, the
device may be damaged or may malfunction.
5.1 Assembling the ZT-F2.1 transformer temperature
transmitter
The ZT-F2.1 transformer temperature transmitter is designed to
be installed in a DIN EN 50216-4 type A1 thermometer pocket.
CAUTION
Never fill the ZT-F2.1 transformer temperature transmitter
with oil. Only the thermometer pocket should be filled
with oil.
Fill the thermometer pocket with approx. 50 ml of oil at room
temperature. To assemble, screw the bottom nut of the double
thread (figure 1, item 4) into the thermometer pocket. Insert
and straighten the immersion tube (figure 1, item 5) of the
ZT-F2.1 transformer temperature transmitter. Tighten the
double thread (figure 1, item 3).
CAUTION
Do not apply force to turn the ZT-F2.1 transformer tempe-
rature transmitter. Always loosen the double thread!
5.2

Installing the temperature bulb of the dial-type

thermometer

Unscrew the cover of the ZT-F2.1 transformer temperature
transmitter (figure 1, item 1). Unscrew the M16x1,5 pressure
11