KYORITSU 3021 Digital Insulation / Continuity Tester (Made In THAILAND)

Description

KYORITSU 3021 Digital Insulation / Continuity Tester (Made In THAILAND) KYORITSU 3021 Digital Insulation / Continuity Tester (Made In THAILAND) is a compact, four-range digital insulation and continuity tester engineered for low-voltage installations up to 600 V. Driven by a microprocessor, it delivers selectable DC test voltages (125 V, 250 V, 500 V, 1000 V) for insulation checks and a DC continuity test with up to 200 mA of test current. Its AUTO DISCHARGE feature safely bleeds residual charge from capacitive circuits, while visible and audible live-circuit warnings enhance user safety during operation. Equipped with a back-lit LCD and 30-segment bar graph, the KEW 3021 provides clear trend indication even in dim environments. It features zero-Ω ADJ to null test-lead resistance, comparator modes with high/low alarms, and onboard memory to store up to 99 insulation readings. A safety interlock (“Safety” key) prevents accidental selection of higher test voltages, and AUTO POWER OFF conserves battery life after 15 minutes of inactivity. Weighing just 600 g (including batteries) and outfitted with a neck strap, this tester is ideal for field engineers, electricians, and maintenance teams performing routine insulation audits, continuity checks, and preventive maintenance. Its rugged IP40 housing and quick auto-range functionality streamline inspections on switchboards, motors, transformers, and cable assemblies in industrial or commercial settings. Features: Conforms to IEC 61010-1 (CAT III 600 V) and IEC 61557 series. Four insulation test voltages: 125 V, 250 V, 500 V, 1000 V. Auto-discharge of capacitive circuits after testing. Two continuity ranges (40 Ω, 400 Ω) with ≥200 mA test current and buzzer. Zero-Ω ADJ. to null test-lead/fuse resistance. Data hold (~5 s) and memory (up to 99 readings). Back-lit LCD with 30-segment bar graph. Comparator with HI/LO alarms (LED and buzzer). Live-circuit warning (LED and buzzer). Safety key interlock for high-voltage ranges. AUTO POWER OFF after ~15 min of inactivity. Test lead with remote control switch (no output unless connected). Robust IP40 housing, neck strap, user-changeable probes. Specifications: Parameter KEW 3021 Insulation Resistance: Auto-ranges: 0–4 / 0–40 / 0–400 / 0–2000 MΩ @125/250/500/1000 V DC; OC voltage: +0 % to +20 %; < 1.5 mA SC current; 1 mA nominal test current; Accuracy: ±(2 % rdg +6 dgt) on lower ranges, ±(5 % rdg +6 dgt) on higher Continuity (Resistance): Ranges: 0–40.00 Ω / 0–400.0 Ω; OC voltage: 5 V ± 20 %; ≥ 200 mA test current; Accuracy: ±(2 % rdg +8 dgt) AC Voltage Indication: 0–600 V AC; Accuracy: ±(3 % rdg +6 dgt) Comparator: Settable HI/LO thresholds on insulation ranges; LED and buzzer indication Display & Sampling: LCD 1999-count + unit symbols; 30-segment bar graph; Response time: ≤ 5 s after step change Memory: Stores up to 99 insulation readings with recall function Safety & Insulation: IEC 61010-1 CAT III 600 V; IP40 enclosure; 5.3 kV AC withstand (5 s) between circuit and case Operating Conditions: 0 °C–40 °C, RH ≤ 90 % (non-condensing); Altitude ≤ 2000 m; Storage: –20 °C–60 °C, RH ≤ 75 % Mechanical: 158 × 105 × 70 mm; Weight: 600 g (incl. batteries) Power: 6 × AA (R6P/LR6) batteries; Typical life: ≥ 1300 insulation tests (125 V) or ≥ 1000 (250 V/500 V) Applications: Insulation Resistance Testing in Low-Voltage Installations. Continuity Verification of Protective Conductors. Preventive Maintenance of Industrial Cabling. Live-Circuit Safety Checks. Motor and Transformer Insulation Audits. Switchboard and Panel Integrity Testing. Field Commissioning of Electrical Equipment. Package Contents: 1x MODEL 7103 Test lead with remote control switch 1x MODEL 7161 Test bar 1x MODEL 7131 Safety alligator clip 1x MODEL 8017 Extension probe 1x Neck strap 1x Cord case 6x R6P (AA) batteries 1x Instruction manual Documents: Instruction Manual Datasheet

From the supplier's page.