18
5. Record of standard parameters
On switching-on the power supply, keep the push-buttons
“4” and “20” depressed and release them after a double
blink of LED.
ATTENTION! With this record, the transmitter calibration is also overwritten and, therefore, it must be repeated!!
Parameter setting
Manual control
The output pull-rod of the actuator can be also adjusted by the hand, employing the handwheel. By rotating
the handwheel clockwise, the valve
(when left-hand threaded)
is closed.
8. PACKING AND STORING
For inland freight, the actuators are unpacked. However, they should be transported by covered conveyances or in
transport containers.
For delivery abroad, the actuators should be packed, the type and design of package being adapted to the transport
conditions and the distance of the place of destination.
Upon receipt of the actuator from the factory, it is essential to check that no damage was caused during transport
and to compare the data on the actuator rating plates with those contained in the order and accompanying
documentation. Any discrepancy, defect or damage should be immediately reported to the supplier.
When the unpacked actuator is not immediately installed it should be stored at a dust-free location with
a temperature within the range of - 25 °C to + 50 °C and relative humidity up to 80% where there are neither aggressive
gases nor vapours and which is secured against the harmful effects of climatic conditions.
If the actuator is to be stored for a longer period than 3 years then, prior to commissioning, oil refilling should be
made. Any manipulation of the equipment at a temperature below - 25 °C is forbidden. Storing the actuator out of
doors or at a location that is not protected against the effects of rain, snow or ice accretion should be avoided. Before
putting the actuator into operation, excessive slush should be removed. When unpacked actuators are to be stored
longer than 3 months it is advisable to place a bag with silica gel or another suitable dessicant in the terminal box.
9. CHECKING OF THE INSTRUMENT FUNCTION
AND ITS LOCATION
Prior to installation, be sure that the actuator was not damaged during storing. A functional check of the electric-motor
can be made so that it is connected to the AC mains via a circuit breaker and started for short-time operation.
In this case, it is sufficient to check that the electric motor starts and turns the output shaft.
The actuator should be installed so that easy access to the handwheel, the terminal box and the control box is
provided. It is also imperative to check that the installation complies with the Clause “Operating Conditions”. If another
method of installation is required due to local conditions, please consult the manufacturer.
Position “4 mA”
Set the actuator to required position
(usually Closed)
and keep the push-button 4 depressed until
LED blinks.
Position “20 mA”
Set the actuator to a required position
(usually Open)
and keep the push-button 20 depressed until
LED blinks.
20
4
- L
+ L
- U
+ U
1
DCPT
EHL elektronika
v.č. 000106
20
4
- L
+ L
- U
+ U
1
DCPT
EHL elektronika
v.č. 000106
2 s
2 s
