PRO DIT-931 5kV High Voltage Digital Insulation Tester

5kV Insulation Resistance Tester featuring Insulation Resistance measurement (IR); Polarisation Index measurement (PI); Absorption Ratio (DAR); Ramp Test mode (RAMP) ; Filtered Resistance test (FR), Voltage measurement (V); Current measurement (nA). With touchscreen display.




The Metravi DIT-931 5kV High Voltage Insulation Resistance Tester has perfect testing functions of various insulation resistance parameters and excellent anti-interference ability, which can be used to test the insulation resistance of large-capacity, high voltage, electrical equipment and transmission lines at substations with strong induction electric environments.

The Metravi DIT-931 High Voltage Insulation Resistance Testers comes with a wide measurement range, high resolution, convenient operation, and are strong, durable, accurate and reliable. It features stable performance and strong anti-interference ability.

The tester is capable of Insulation Resistance Test (IR), Polarisation Index Test (PI), Dielectric Absorption Ratio Test (DAR), Ramp Test Mode (RAMP), Filtered Resistance Test mode (FR 10S` 20S` 30S` 40S` four selections), Voltage Test (V), Capacity measurement (uF), Current measurement (nA) and others functions.

The instruments are suitable for testing the insulation resistance of large equipment such as electric equipment which with large capacity, high voltage and in strong induction electric environment, and transmission line, like power, telecommunications, meteorology, computer rooms, oil fields, mechanical and electrical installations and maintenance and power supply departments of industrial and mining enterprises.

Additional information







Polarization Index Test


Dielectric Absorption Ratio


Ramp Test Mode


Filtered Resistance Test


Auto Power Off

Test Timer Function

Automatically record test time, Time Range: 0s ~ 9999s

Automatic Charge Discharge

After test automatically releases charge of test object

Voltage Monitor Function

Automatically monitor live voltage of test object, Forbidden to test when voltage exceed 36V, Monitor discharge status after test, Protect instrument and operator

Dust & Water Proof

Data Storage

1000 groups



Power Source

Battery Operated

Battery Type

Li-Ion Rechargeable



Insulation Resistance Range

0.50MΩ to 10TΩ



Insulation Test Voltage


Short-circuit Current


Voltage Test

0V to 1000V

Capacitance Test

10nF to 50uF

Current Test

0.01nA to 9mA

Low Battery Indication

Output Voltage

Output Voltage Accuracy

(5% to 10%) ±10V

  • Insulation resistance range: 0.50MΩ ~ 10.0TΩ
  • Rated Voltage: 250V, 500V, 1KV, 2.5KV, 5KV
  • Shirt Circuit Current: >7mA
  • Output rated voltage max reach gears (250V, 500V, 1KV, 2.5KV, 5KV)
  • Output Voltage Accuracy: (5% ~ 10%) ±10V.
  • Max short circuit current 7mA
  • Insulation Resistance Range and Accuracy:
Rated Voltage Insulation Resistance
0.50MΩ ~ 50.0GΩ ±5%rdg±3dgt
50.0GΩ ~ 500GΩ ±20%rdg±3dgt
1.00MΩ ~ 100GΩ ±5%rdg±3dgt
100GΩ ~ 1.00TΩ ±20%rdg±3dgt
1.00MΩ ~ 200GΩ ±5%rdg±3dgt
200GΩ ~ 2.00TΩ ±20%rdg±3dgt
1.00MΩ ~ 500GΩ ±5%rdg±3dgt
500GΩ ~ 3.00TΩ ±20%rdg±3dgt
1.00MΩ ~ 1.00TΩ ±5%rdg±3dgt
1.00TΩ ~ 10.0TΩ ±20%rdg±3dgt

1 TΩ (Tera ohm) =1000GΩ = 1012Ω
1 GΩ (Giga ohm) =1000MΩ = 109Ω
1 MΩ (Mega ohm) =1000KΩ = 106Ω

  • Voltage Test Range: AC/DC:0V ~ 1000V; Accuracy : ±5%rdg±3V
  • Capacitance Test Range: 10nF ~ 50uF; Accuracy : ±10%rdg±10nF
  • Current Test Range: 0.01nA ~ 9mA; Accuracy : ±5%rdg±0.5nA
  • Insulation resistance test (IR)
  • Polarisation index test (PI)
  • Dielectric Absorption Ratio Test (DAR)
  • Ramp Test mode (RAMP)
  • Filtered Resistance Test mode (FR)
  • Voltage monitor function to automatically monitors the live voltage of the measured object
  • Test timer function to automatically records the test time
  • Automatic discharge function, the charge of the tested object is released automatically after the test
  • Automatic shutdown function
  • Large size touch colourful screen
  • Double-shell structure, sturdy and durable
  • Protection rating of IP65
  • Large capacity rechargeable lithium battery pack
  • Storage function, can automatically store 1000 groups of real-time test data with test date, time and timing.
  • Upload function using USB interface, the recorded data can be uploaded to the computer via USB communication cable for data statistical analysis.
  • Power Supply: Rechargeable lithium battery 6.2Ah
  • Safety Compliances: IEC61010-1, IEC61326-1


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