MODEL 3587 - 8 -
3.3 Pre-operation check (Correctness Confirmation of Digital MΩ tester)
The following pre-operation checks are recommended before the measurement start.
3.3.1 Preparation
Resistor ︓Calibration resistors MODEL 5804 Series（option）or any other resistor
having same type of resistance designed for the calibration of Digital MΩ
tester.
Model
Resistance
value
5804-11 1MΩ
5804-12 10MΩ
5804-13 100MΩ
5804-14 1000MΩ
Specification of recommended calibration resistor
Max. Circuit
Voltage
DC1500V
Tolerance
± 1％
Temp. Coeff.
±50ppm/℃
But for 1000MΩ:±100ppm/℃
Connecting
terminal
Johnson 12mm Terminal
Red color
! Caution
In case of commercially available resistor usage:
・Depending on the test voltage, if the rated voltage or power
of the resistor is exceeded, the resistor may be damaged.
・It is recommended to use the resistor within approximately
50% of the rated power.
3.3.2 Confirmation Method
（1）Suitable resistor is selected.
（2）Set measurement voltage to 500V and measurement range to AUTO in Digital MΩ
tester
（3）Connect the resistor and Digital MΩ tester by means of test lead.
（4）Measurement is started and make sure that the measured display value lies within
the accuracy (Accuracy of the measurement instrument＋tolerance of the resistor)
of the resistor.
MODEL 5804
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