YOKOGAWA GX60 User Manual

5-1
IM 04L51B01-01EN
Maintenance and Troubleshooting
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5.1 Maintenance
5.1.1 Periodic Inspection
Check the operation periodically to keep the GX/GP in good working order.
Perform the following inspections, and replace worn parts as needed.
• Is the display and storage functioning properly?
If not, see section 5.2, “Troubleshooting.”
• Has the brightness of the LCD backlight deteriorated?
If replacement is necessary, see section 5.1.5, “Recommended Replacement Periods for
Worn Parts.”
5.1.2 Calibrating AI Modules
To maintain measurement accuracy, we recommend that you calibrate AI modules once a
year.
YOKOGAWA dealers can provide calibration servicing.
For details, contact your nearest YOKOGAWA dealer.
Required Instruments
To calibrate the AI modules, you need calibration instruments with the following accuracy
and resolution.
Recommended Instruments
• DC voltage standard: DC Voltage/Current Standard
Must meet the following specifications (M/9100 by FLUKE or
equivalent)
Voltage output range: 20 mV to 100 V
Output accuracy of output range: ±(0.01%+1 μV) or better
Must meet the following specifications (for mA modules,
Yokogawa Meters & Instruments GS200 or equivalent)
Current output range: 0 mA to 20 mA
Setting output accuracy: ±(0.03% of setting + 5 μA) or better
• Resistance standard: Must meet the following specifications (ADR3204 by Alpha
Electronics or equivalent)
Resistance setting range (resolution):
0.2 to 1999 Ω (0.001 Ω), 0.2 to 19999 Ω (0.01 Ω)
Resistance accuracy of the resistance setting range:
± (0.01% of + 2 mΩ ) or better
• Digital Multimeter Must meet the following specifications (for mA modules)
Agilent 3458A or equivalent
Current measurement range: 100 mA
Measurement accuracy: 35 ppm of reading + 5 ppm of range
• 0°C standard temperature device: ZC-114/ZA-10 by Coper Electronics or equivalent
Main specifications
Standard temperature stability accuracy: ±0.05°C
For information on purchasing these calibration instruments, contact your nearest YOKOGAWA dealer.
Chapter 5 Maintenance and Troubleshooting

YOKOGAWA GX60 Specifications

General

Brand	YOKOGAWA
Model	GX60
Category	Voice Recorder
Language	English