The KYORITSU 3005A Digital Insulation / Continuity Tester (Made In THAILAND) is a handheld digital instrument designed primarily for measuring insulation resistance and continuity in electrical circuits. Encased in a durable housing with protective finger guards and fittings for a strap belt, it features a liquid crystal display and a 30-segment bar graph to indicate readings. Powered by eight AA batteries, it delivers test voltages of 250 V, 500 V, or 1000 V DC, enabling users to verify insulation integrity up to 1999 M. In continuity mode, it applies a test current to detect resistance as low as 0.20 , with a measuring range up to 1999 , and can also display AC voltages up to 600 V .
A live circuit warning indicator and buzzer alert the operator if the circuit under test is energized, enhancing safety. After insulation testing, built-in auto discharge circuitry removes residual charge from capacitive components automatically, and an audible confirmation indicates when it is safe to touch the circuit. The instruments microprocessor-controlled dual integration system ensures stable, repeatable measurements even under varying temperature and battery conditions.
Lightweight (970 g without batteries) and designed to IEC CAT III 300 V standards, the KEW 3005A is suited for field service, maintenance, and troubleshooting of electrical equipment such as motors, transformers, switchgear, and cables.
| Specification | Details |
|---|---|
| Insulation Resistance Ranges: | 0 19.99 M / 0 199.9 M / 0 1999 M at 250 V, 500 V, 1000 V DC Open-circuit voltage: 250 V DC 20 % (250 V range), 500 V DC 20 % (500 V range), 1000 V DC 20 % (1000 V range) Nominal current: 1 mA DC at 0.25 M (250 V), 0.5 M (500 V), 1 M (1000 V) Short-circuit current: 1.5 mA DC |
| Insulation Accuracy: | 20 M, 200 M: 1.5 % reading 5 digits 2000 M (0 1 G): 10 % reading 3 digits 2000 M (1 2 G): 3 % reading 3 digits |
| Continuity Ranges: | 20 (0 19.99 ) 200 (0 199.9 ) 2000 (0 1999 ) Open-circuit voltage: 7 12 V Measuring current: 200 mA at 0.2 Accuracy: 1.5 % reading 5 digits (20 ) 1.5 % reading 3 digits (200 & 2000 ) |
| AC Voltage Indication: | 0 600 V AC 5 % reading 3 digits |
| Typical Number of Measurements: | Insulation: 1000 tests at 0.5 M load (batteries 8 V) Continuity: 700 tests at 1 load |
| Operating Uncertainty (IEC 61557-2,-4): | 1000 V, 20 M (0.50 19.99 M): 30 % 1000 V, 200 M (1 199.9 M); 2000 M (10 1000 M) 500 V, 20 M (0.50 19.99 M); 200 M (1 199.9 M); 2000 M (10 100 M) 250 V, 20 M (0.25 19.99 M); 200 M (1 199.9 M); 2000 M (10 100 M) Continuity: 20 (0.20 19.99 ), 200 (1 199.9 ), 2000 (10 1999 ) |
| Standards & Certifications: | IEC 61010-1; IEC 61010-2-030 CAT III 300 V, Pollution Degree 2; IEC 61010-031; IEC 61557-1,2,4,10; IEC 61326-2-2 EMC; IEC 60529 (IP54 dust & drip proof); IEC 50581 (RoHS compliant) |
| Display: | LCD (Max count 1999) with unit indicators 30-segment bar graph (20 segments on range) OL for over-range indication NULL symbol during auto-null operation |
| Sample Rate: | 0.5 to 2.5 readings per second |
| Operating Temperature & Humidity: | 0 C to +40 C; up to 85 % RH |
| Storage Temperature & Humidity: | 20 C to +60 C; up to 75 % RH |
| Altitude (Use Location): | 2000 m |
| Insulation & Withstand Voltage: | Insulation: 50 M at 1000 V DC (between circuitry and housing) Withstand: 3470 V AC for 5 seconds (between circuitry and housing) |
| Overload Protection: | Insulation: 250 V range 300 V DC for 10 s 500 V range 600 V DC for 10 s 1000 V range 1200 V DC for 10 s Continuity (20/200/2000 ranges): 440 V AC for 1 minute (fused protection) |
| Dimensions (L W D): | 185 167 89 mm |
| Weight: | 3005A: 970 g (with batteries) |
| Power Source: | 8 R6P (AA) 1.5 V batteries (or equivalent) |
| Auto-Power-Off: | Automatically turns off 10 minutes after last switch operation Standby current 75 A |
| Operating System: | Dual integration microprocessor control |
IM_3005A_3007A_92-1492E_E_L
LC_3005A_3007A_3131A_3132A_1E-KEW1
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