The Model 3131A offers unmatched performance, and feature including test lead resistance zero adjustment for time-saving continuous operation, a clear ease to read illuminated scale, and a live circuit warning.
• Test insulation up to 100MΩ at 250V, 200MΩ at 500V, 400MΩ at 1000V and continuity up to 20Ω.
• 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.
• Front panel zero adjust.
• Back light function to facilitate working at dimly lit situations.
• PRESS TO TEST button with lock down feature.
Insulation Resistance
| Test voltage | 250V/500V/1000V |
|---|---|
| Measuring ranges<br>(Mid-scale value) | 100MΩ/200MΩ/400MΩ (1MΩ) / (2MΩ) / (4MΩ) |
| Output voltage on open circuit | Rated test voltage+20%, -0% |
| Nominal current | 1mA DC min. |
| Output short circuit current | 1.3 mA DC approx. |
| Accuracy | 0.1 – 10MΩ/0.2 – 20MΩ/0.4 – 40MΩ (Accuracy Guaranteed Ranges) ±5% of indicated value |
Continuity
| Measuring ranges<br>(Mid-scale value) | 2Ω/20Ω (1Ω)/(10Ω) |
|---|---|
| Output voltage on open circuit | 4 – 9V DC |
| Measuring current | 200mA DC min |
| Accuracy | ±3% of scale length |
General
| Safety Standard | IEC 61010-1 CAT III 300V Pollution Degree 2 IEC 61010-2-031 IEC 61557-1/2/4 |
|---|---|
| IP Rating | IEC 60529-IP54 |
| EMC Standard | IEC 61326-1 |
| Power source | R6 (AA) (1.5V) × 6 |
| Dimensions | 167(L) × 185(W) × 89(D)mm |
| Weight | 860g approx. |
| Included Accessories | 7122B (Test leads) Pouch for test leads 8923 (F500mA/600V fuse) × 2 R6 (AA) × 6 9121 (Shoulder Strap) Instruction Manual |
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