Maintenance, 1 general, 2 calibration instruments selection – Yokogawa Wireless Temperature Transmitter YTA510 User Manual

Page 52: 3 calibration procedure, Maintenance -1, General -1, Calibration instruments selection -1, Calibration procedure -1, Important

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<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

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