<6. Operation>
6-1
IM 01C25W05-01EN
6. Operation
6.1 Preparation for Starting
Operation
This section describes the operation procedure for
measuring the liquid level of a closed tank shown
in Figure 6.1 using an EJXC40A digital remote
sensored diaphragm seal system.
Closed tank
Low pressure side
transmitter
(slave)
High pressure side
transmitter
(master)
DRS cable
F0601.ai
Figure 6.1
Liquid Level Measurement of a Closed
Tank
(1) Checking Leaks from Wetted Parts
Check that there are no leaks from the connected
areas of the flange.
(2) Connecting the HART Configuration Tool
Turn the power on, and connect the HART
configuration tool. Open the terminal box cover, and
connect the HART configuration tool to the SUPPLY
+ and – terminals (see subsection 5.3.3).
(3) Transmitter Operation Check
Using the HART configuration tool, confirm that the
transmitter is operating properly. Check parameter
values or change the setpoints as necessary. See
chapter 7 for the operating procedure of the HART
configuration tool. If the transmitter is equipped with
an integral indicator, its indication can be used to
confirm that the transmitter is operating properly.
■ Checking with the integral indicator
• If the wiring system is faulty, the display stays
blank.
• If the transmitter is faulty, an error code will
appear on the display according to the nature of
the error.
F0602.ai
Self-diagnostic error (faulty transmitter)
Figure 6.2
Integral Indicator Error Display
NOTE
If any of the error indications above appears
on the display of the integral indicator, refer to
Subsection 8.5.3 for corrective action.
■ Verify and Change Transmitter Parameter
Setting and Values
The following parameters are the minimum
settings required for operation. The transmitter has
been shipped with specified parameter values. If
necessary, confirm or change the values.
• Measuring range (low limit, high limit, and unit)
• Output/integral indicator mode (linear/square
root)
