35
TN4FCXA2
j
-EDF-
E
After performing the settings, maintain the electrical supply for at least
for 10 seconds to allow data to be recorded.
For the adjustment or checking of the zero in a dangerous area (explosion-protected), refer to the
leaflet ATEX HDFCX-AII 002.
• Put the device under voltage.
• Check the output signal by connecting a milliammeter to ter CK and CK
-
of the transmitter.
• After at least 10 seconds, adjust the output signal of the transmitter by 4 mA (zero
adjustment).
COMMISSIONING AND STOPPAGE
5
5.1 Installation:
After installation (see Section 6.1) and before starting up the transmitter, please check the points
and follow the following procedures.
Preparation:
(1) Check the sealing of connection mechanism by applying soapy water
or equivalent.
(2) Check the electrical connection to ensure that no liquid can get into
the electronic unit via the cable inlets (see Section 7.1).
(3) Bleed the measurement chambers of the transmitter
Carefully read the package leaflet ATEX Ref.HDFCX-AII 002 for starting up
appliances in an explosion-protected area (protected against explosion by
means of an enclosure).
The compatibility of the product being measured by the transmitters must be checked and
assured by the customer's competent staff.
(4) Perform the zero setting.
Checking the zero
Zero adjustment:
The zero adjustment can be done:
(1) with the adjustment screw (do not use in nuclear power
plants)
Refer to the Section 6.1 “Adjustment with the external
screw”
(2) With the LCD indicator (do not use in nuclear power
plants)
Refer to Section 6.2 “Adjustment procedure with the
LCD indicator”
(3) With the Fuji or Hart mobile communicator
Refer to Section 6.3 “Adjustment procedure with the mobile communicator”
As soon as all operations are completed, reassemble and tighten the covers of the enclosure.
(The covers of the unit are mounted “tightened to contact”).
If the pipes are cleaned out at the start of the installation, be sure to close
the isolation valves (manifold) of the transmitter in order to protect against
the cleaning fluid and to avoid the ingress of foreign particles into its
measurement chambers.
Diminuer
Augmenter
Ajustement fin : Tourner doucement
(environ 5 sec par tour)
Ajustement approximatif : Tourner vite
(environ 1 sec par tour)
INDICATION
DANGER
ATTENTION
