YOKOGAWA WT310 User Manual

6-3
IM WT310-02EN
Troubleshooting, Maintenance, and Inspection
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App
Index
6.3 Recommended Part Replacement
YOKOGAWA guarantees the WT310/WT310HC/WT330 for the period and under the conditions of
the product warranty. The warranty does not cover the following expendable items. The replacement
period for expendable items varies depending on the conditions of use. Refer to the table below as a
general guideline. Contact your nearest YOKOGAWA dealer to have parts replaced.
Part Name Recommended Replacement Interval
Current input relay
(only for the WT310)
A relay for switching the current input circuit. The relay’s specifications indicated below.
• Electrical life: Approximately 50,000 operations (at the rated capacity)
• Mechanical life: Approximately 1,000,000 operations
Backup battery
(lithium)
3 years

YOKOGAWA WT310 Specifications

General

Model	WT310
Category	Digital Power Meter
Current Measurement Range	0.5 mA to 20 A
Weight	Approx. 3.5 kg
Voltage Measurement Range	15 V to 600 V
Frequency Range	100 kHz
Basic Accuracy	0.1%
Power Accuracy	0.1%
Display	LCD
Interfaces	USB, RS-232, GP-IB
Input Elements	1
Dimensions	213 mm x 88 mm x 346 mm