Maintenance; Calibration - Omega COMPACT CAL CA100 Owner's Manual

Maintenance

Calibration

To maintain high accuracy, the instrument should be calibrated once every year.
Calibration services are also available from your nearest representative. The following
example of calibration using the standard equipment recommended in the section
"Selecting the Standards" is described.
Selecting the Standards
Generation Function
Item to be
calibrated
DCV
DCA
Ω
Measurement Function
Item to be
calibrated
DCV
DCA
Ω
Required Environment during Calibration
Ambient temperature:
Relative humidity:
Power supply voltage:
Power supply frequency: (50/60 Hz)±1 Hz
Warm-up time:
Point to Note during Calibration
Make sure that the AC outlet to which this instrument is to be connected is a 3-slot
outlet with a grounding terminal.
Standard Calibration Measurement
Range Range
Digital 100 mV Max. 110 mV
multimeter 1 V Max. 1.1 V
10 V Max. 11 V
Digital 20 mA 22 mA
multimeter
500 Ω
Digital Max. 3 V
multimeter 5 kΩ
50 kΩ
Standard Calibration Generation
Range Range
Standard DC 500 mV 500 mV
voltage 5 V 5 V
generator 35 V 35 V
Standard DC 20 mA 20 mA
current 100 mA 100 mA
generator
500 Ω 500 Ω
Precision-
resistance 5 kΩ 5 kΩ
digital 50 kΩ 50 kΩ
multimeter
23±1˚C
45% to 75% RH
100 V±5%
Before starting calibration, the standard equipment must be
warmed up for the specified time, and the instrument must be
warmed up for at least 4 hours.
Accuracy
±(10 ppm+1 µV)
±(10 ppm+5 µV)
±(10 ppm+50 µV)
±(50 ppm+0.4 µA)
±(10 ppm+1 mV)
Accuracy
±(20 ppm+5 µV)
±(20 ppm+50 µV)
±(20 ppm+300 µV)
±(60 ppm+0.4 µA)
±(40 ppm+1 µA)
±50 ppm(5 ppm/˚C)
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