Section 1
TM9230A-C1-002 November, 2021
2 November, 2021
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For all other countries, including Canada please ship to
:
Guildline Instruments Limited
21 Gilroy Street, PO Box 99
Smiths Falls, ON K7A 4S9
Mark on the outside of the box:
RMA # _____________
Model #_____________
Serial #_____________
The Statement: “Canadian manufactured goods being returned for repair.”
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Safety Information
WARNING: During usage and calibration high voltages or high currents may be
present. Use caution when working above 40 Volts DC or currents above 1 mA. Such
voltages or currents can cause death.
The 9230A Precision DC Current Shunt Standards are designed to work within specifications to 100 or
125 Watts of power depending on the particular model. Applying more than the recommended
power will damage the unit although a power level 20 % over the limit can be sustained for 1 minute.
It is recommended to use the model 92310 forced air convection unit whenever power levels above
31 Watts are to be encountered.
Inspect the Current Shunt Standard for damage such as cracked connectors prior to use. If unit has a
burned smell or smoke is visible during use, discontinue use immediately.
If test equipment used with Current Shunt Standards overloads or trips, this could be a sign that the
shunt standard requires repair.
Inspect all test leads used with the Current Shunt Standard for damaged insulation or exposed metal.
Check all test leads for continuity.
Ensure all test leads are suitably sized and correctly connected and tightened prior to applying
current. Severe arcing and burning can occur if cable connections are not tightened sufficiently.
Do not use Current Shunt Standards around explosive gas, vapor or dust.
