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.
• Five Test Voltages: 50, 100, 250, 500, and 1000 VDC
• Voltage Measurement to 1000 V AC/DC
• Test Probe Signal Lamp Illuminates Work Area and Indicates Pass/Fail of
Insulation Resistance
• Battery Powered with Battery Test and Battery Charge Indicator
• Rugged Tester Design for Industrial Applications with Leatherette Carrying Case
Specifications
REFERENCE CONDITIONS
Ambient Temperature: 73ЊF (23ЊC) Ϯ 4ЊF (2ЊC)
Relative Humidity: 45 to 55%
Measuring Ranges
INSULATION RESISTANCE
Measurement Magnitude Frequency: 45-65 Hz (voltage measurements)
Line Voltage Waveform: Sine, deviation between effective and rectified value < .5%
Battery Voltage: 9V Ϯ .5V
Measuring
Range
Lamp in Test Prod1)
Open-Circuit Voltage U Internal Resistance R i Lights for Resistance
o
Operating Position: Horizontal
0…50K⍀
30K⍀
10K⍀
40K⍀
> 100K⍀
> 200K⍀
> 500K⍀
> 1M⍀
ELECTROMAGNETIC COMPATIBILITY EMC
Interference Emission:
EN 50081-1: 1992
Interference Immunity:
EN 50082-1: 1992
20K⍀…1M⍀
200K⍀…20M⍀
60V
120V
300V
600V
0…100K⍀
40K⍀…2M⍀
400K⍀…40M⍀
60K⍀
20K⍀
80K⍀
0…250K⍀
100K⍀…5M⍀
1M⍀…100M⍀
150K⍀
50K⍀
200K⍀
ELECTRICAL SAFETY
Designed to IEC 1010-1
Protection Class: II
Test Voltage: ꢀ 5.55Kv
Overvoltage Classification: II
Pollution Degree: 2
0…500K⍀
200K⍀…10M⍀
2M⍀…200M⍀
300K⍀
100K⍀
400K⍀
0…1M⍀
400K⍀…20M⍀
4M⍀…400K⍀
600K⍀
200K⍀
800K⍀
> 2M⍀
Protection: Housing IP52
1200V
9V
AMBIENT CONDITIONS
Operating Temp. Range: 32ЊF (0ЊC) to 104ЊF (40ЊC)
Storage Temp. Range: -4ЊF (-20ЊC) to 140ЊF (60ЊC) (without batteries)
Relative Humidity: Max. 45-55%, condensation must be avoided
MECHANICAL DESIGN
Ϫ
Ϫ
0…4K⍀
(1) Switching Accuracy
DIRECT AND ALTERNATING CURRENT
Measuring
Range
Internal
Resistance
Maximam
Overload
Dimensions: W 6.50” (165mm) x
D 4.33” (110mm) x H 4.92” (125mm)
Weight: 3.5 lbs. (1.6kg) (with batteries)
Frequency
Intrinsic Error (1)
Ϯ2.5%
0 to 1000V
AC/DC
0 or 40 to 200Hz
900K⍀
1200V AC/DC
Continuous
POWER SUPPLY
(1) Referring to scale length
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.)
Ordering Information
ACCESSORIES
501 Insulation Tester, 1000 V
Catalog No.
12501
rev_1 11/2/04
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