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Five Test Voltages: 50, 100, 250, 500, and 1000 VDC
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Voltage Measurement to 1000 V AC/DC
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Test Probe Signal Lamp Illuminates Work Area and Indicates Pass/Fail of
Insulation Resistance
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Battery Powered with Battery Test and Battery Charge Indicator
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Rugged Tester Design for Industrial Applications with Leatherette Carrying Case
501 Insulation Tester
The model 501 can be used for general purpose insulation tests that require voltages
from 50V to 1000V only.
The Instrument is equipped with AC and DC measuring ranges up to 1000V. This is
advantageous for testing for the absence of voltage and the discharge of capacitive
devices under test.
The 501 features a quick testing signal lamp within the test probe that illuminates the
work area. The signal lamp can also be used for quick Pass/Fail evaluations of
insulation resistances. Minimum values for insulation resistances are present if the
lamp lights up.
Comes equipped with built-in test probes, an alligator clip, a leatherette carrying case
and batteries.
Ordering Information
ACCESSORIES Catalog No.
501 Insulation Tester, 1000 V 12501
INSULATION RESISTANCE
DIRECT AND ALTERNATING CURRENT
(1) Referring to scale length
REFERENCE CONDITIONS
Ambient Temperature: 73⬚F (23⬚C) ⫾ 4⬚F (2⬚C)
Relative Humidity: 45 to 55%
Measurement Magnitude Frequency: 45-65 Hz (voltage measurements)
Line Voltage Waveform: Sine, deviation between effective and rectified value < .5%
Battery Voltage: 9V ⫾ .5V
Operating Position: Horizontal
ELECTROMAGNETIC COMPATIBILITY EMC
Interference Emission:
EN 50081-1: 1992
Interference Immunity:
EN 50082-1: 1992
ELECTRICAL SAFETY
Designed to IEC 1010-1
Protection Class: II
Test Voltage: 5.55Kv
Overvoltage Classification: II
Pollution Degree: 2
Protection: Housing IP52
AMBIENT CONDITIONS
Operating Temp. Range: 32⬚F (0⬚C) to 104⬚F (40⬚C)
Storage Temp. Range: -4⬚F (-20⬚C) to 140⬚F (60⬚C) (without batteries)
Relative Humidity: Max. 45-55%, condensation must be avoided
MECHANICAL DESIGN
Dimensions:
W
6.50” (165mm) x
D
4.33” (110mm) x H 4.92” (125mm)
Weight:3.5 lbs. (1.6kg) (with batteries)
POWER SUPPLY
Standard or Storage Battery: 6 ea. 1.5V “D” size batteries
Working Range:7V to 10V
Battery Service Life: Number of possible measurements with 1 set of “D” size
batteries (with lamp in test prod switched off): at least 3,000 measurements of an
insulation resistance of 1M⍀ (Nominal Voltage of1000 V, 5 sec. Measurement duration,
switched off for 25 sec. etc.)
Specifications
(1) Switching Accuracy
Measuring Ranges
Measuring
Range Open-Circuit Voltage
Uo
Internal Resist ance R
i
Lamp in Test Prod
1)
Lights for Resistance
0…50K⍀
20K⍀…1M⍀
200K⍀…20M⍀
60V
30K⍀
10K⍀
40K⍀
> 100K⍀
0…100K⍀
40K⍀…2M⍀
400K⍀…40M⍀
120V
60K⍀
20K⍀
80K⍀
> 200K⍀
0…250K⍀
100K⍀…5M⍀
1M⍀…100M⍀
300V
150K⍀
50K⍀
200K⍀
> 500K⍀
0…500K⍀
200K⍀…10M⍀
2M⍀…200M⍀
600V
300K⍀
100K⍀
400K⍀
> 1M⍀
0…1M⍀
400K⍀…20M⍀
4M⍀…400K⍀
1200V
600K⍀
200K⍀
800K⍀
> 2M⍀
0…4K⍀ 9V
⫺⫺
Measuring
Range Frequency
Internal
Resistance
Maximam
Overload Intrinsic Error (1)
0 to 1000V
AC/DC
0 or 40 to 200Hz 900K⍀ 1200V AC/DC
Continuous
⫾2.5%
rev_1 11/2/04
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