Three insulation test ranges: 250V/100MΩ, 500V/200MΩ, 1000V/400MΩ

Three insulation test ranges: 250V/100MΩ, 500V/200MΩ, 1000V/400MΩ
LIVE circuit warning lamp plus audible warning
Automatic discharge of circuit capacitance when TEST button is released
Fuse protected (continuity range only)
Battery check LED
Zero adjustment on panel
Backlight function to facilitate working at dimly lit situations
PRESS TO TEST button with lock down feature

Shipping Weight: 0.86 kg
Manufactured by: KYORITSU

Can't wait until tomorrow? Same-day delivery can be arranged for Klang Valley customers! (Please call us at 03-42702333 for arrangements)

The Model 3131A offers unmatched performance, featuring a clear, easy-to-read illuminated scale, test lead resistance zero adjustment for efficient continuous operation, and a live circuit warning.

✅ Insulates up to 100MΩ at 250V, 200MΩ at 500V, and 400MΩ at 1000V; continuity up to 20Ω.
✅ LIVE circuit warning lamp plus audible alert.
✅ Automatic discharge of circuit capacitance upon releasing the TEST button.
✅ Fuse protection (continuity range only).
✅ Battery check indicator.
✅ Front panel zero adjustment.
✅ Backlight function for dimly lit environments.
✅ PRESS TO TEST button with lockdown feature.

Insulation Resistance

- Test Voltage:
250V/500V/1000V

- Measuring Ranges (Mid-scale Value):
100MΩ/200MΩ/400MΩ
(1MΩ) (2MΩ) (4MΩ)

- Output Voltage on open circuit:
Rated test voltage +20%, -0%

- Nominal Current:
Minimum of 1mA DC.

- Output Short Circuit Current:
Approximately 1.3 mA DC.

- Accuracy:
Ranges from 0.1~10MΩ/0.2~20MΩ/0.4~40MΩ (Accuracy Guaranteed Ranges) are within ±5% of the indicated value.

Continuity

- Measuring Ranges (Mid-scale Value):
2Ω / 20Ω
(1Ω) (10Ω)

- Output Voltage on open circuit:
Between 4~9V DC.

- Measuring Current:
Minimum of 200mA DC.

- Accuracy:
±3% of scale length.

General

- Safety Standard:
IEC61010-1 CAT.III300V Pollution Degree2
IEC61010-2-031
IEC61557-1/2/4

- IP Rating:
IEC60529-IP54

- EMC Standard:
IEC61326-1

- Withstand Voltage:
3700V AC for one minute.

- Power Source:
R6P (AA) (1.5V) ×6

- Dimensions:
185(L) ×167(W) ×89(D) mm

- Weight:
Approximately860g.

- Accessories:
7122B (Test leads), pouch for test leads,
8923 (F500mA/600V fuse) ×2,
R6P (AA) ×6,
Shoulder Strap,
Instruction Manual

Made in: Thailand

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KYORITSU 3131A Analogue Insulation / Continuity Tester (KEW 3131A)

Product Brochure

Product Datasheet / User Manual