<8. Maintenance>
8-1
IM 01C50E01-01EN
8. Maintenance
8.1 General
Maintenance of the transmitter is easy due to its
modular construction. This chapter describes the
procedures for calibration, adjustment, and the
disassembly and reassembly procedures required
for component replacement.
Transmitters are precision instruments. Please
carefully and thoroughly read the following sections
for information on how to properly handle them
while performing maintenance.
IMPORTANT
• As a rule, maintenance of this transmitter
should be done in a shop that has all the
necessary tools.
• The CPU assembly , RF assembly and LCD
board assembly contain sensitive parts that
can be damaged by static electricity.
Take precautions such as using a grounded
wrist strap when handling electronic parts or
touching the board circuit patterns. Also be
sure to place the removed CPU assembly ,
RF assembly or and LCD board assembly
into a bag with an antistatic coating.
8.2 Calibration Instruments
Selection
Table 8.1 lists the instruments that can be used
to calibrate a transmitter. When selecting an
instrument, consider the required accuracy level.
Exercise care when handling these instruments to
ensure they maintain the specified accuracy
8.3 Calibration Procedure
Use the procedure below to check instrument
operation and accuracy during periodic
maintenance or troubleshooting.
1) Insert the battery pack and then perform
provisioning to have the transmitter join the
Field Wireless Network or preparing the infrared
communication for calibration.
2) Set the update period to 1 second using
the field wireless configuration tool to set
continuous for the transmitter.
3) Connect the devices as shown in Figure 8.1
and allow the transmitter to warm up for at least
5 minutes.
Table 8.1
Instruments Required for Calibration
Name
Yokogawa-recommended Instrument
Remarks
Provisioning device
tool
• FieldMate (R2.02.01 or later)
• Provisioning Device Tool
• Infrared Adapter certified by Yokogawa
Supplier: ACTiSYS
Product name: IrDA InfraRed USB Adaptor
Product number: IR224UN
Field wireless
configuration tool
• Field Wireless Integrated Gateway attached Software
Field Wireless Configurator
Field Wireless Management Tool
• Field Wireless System related Product
Plant Resource Manager (PRM) (R3.05 or later)
• Device Configuration Tool via ISA100.11a Wireless
Communication
FieldMate (R2.02.01 or later)
DeviceFile (R3.01.01 or later)
• Device Configuration Tool via Infrared Communication
FieldMate (R2.03.00 or later)
DeviceFile (R3.02.01 or later)
Universal calibrator
• Model 9100 type
For calibration of DC voltage or
thermocouple input)
Variable resistor
• 279301 type 6-dial variable resistor
(accuracy: ±0.005%)
For calibration of resistance
thermometer (RTD) input