Section 5
TM9230A-C1-002 November, 2021
2 November, 2021
5-1
5.0 MAINTENANCE
Maintenance of the 9230A series of shunt standards consists only of routinely inspecting the
unit for physical damage and cleanliness. Cleanliness is especially important on the high
value resistors (1 Megaohm and greater). These should be cleaned with isopropanol and a
soft brush or cloth. Special care should be taken to ensure that the terminal connectors are
clean. In particular the contact surfaces of the current terminals may need to be cleaned with
a light abrasive from time to time to remove excessive oxide build up to avoid a high
resistance contact that can heat up.
5.1
Replaceable Parts
The following tables list the replaceable parts.
Note that once a part has been replaced, the
unit may be required to be recalibrated.
To Contact Guildline Instruments, the following information is provided.
USA and Canada Telephone: (613) 283-3000
USA and Canada Fax: 1-613-283-6082
Outside US and Canada Telephone: +[1] 613 283-3000
Outside US and Canada Fax: [1] +613 283-6082
You can also contact Guildline Instruments Limted via their Email or Websites.
5.1.1
Common Parts (All Models)
Part Number (GPN#)
Description
018-00165
Case Foot
30110-02-17
5 Way Binding Post, Red
30110-01-17
5 Way Binding Post, Black
841-01339
Lock Washer, #8
150-31592
Plastic Cap
812-04113
Cap screw
150-31590
Cap base
Summary of Contents for 9230A Series
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