Kyoritsu 3122B Digital High Voltage Insulation Testers 5000V

Description

The Kyoritsu 3122B is a specialized high-voltage diagnostic instrument engineered for testing the integrity of insulation in heavy-duty electrical equipment. It features a dual-scale design with automatic range switching to provide high-resolution readings across a wide spectrum of resistance values. The unit is housed in a ruggedized, impact-resistant carrying case designed for field use in harsh industrial environments.

Manufacturer: Kyoritsu Electrical Instruments Works, Ltd.
Model: 3122B
Product Category: High Voltage Analog Insulation Resistance Tester

Technical Specifications:
Test Voltage: 5000V DC (Fixed)
Measuring Range: 5GΩ / 200GΩ (Automatic Range Switching)
First Effective Measuring Range: 0.2GΩ to 100GΩ
Accuracy: ±5% of Indicated Value
Other Ranges Accuracy: ±10% of Indicated Value or 0.5% of Scale Length
Rated Current: 1mA approx. (at 5MΩ load)
Short Circuit Current: 0.5mA approx.
Withstand Voltage: 5000V AC for 1 minute
Power Source: R6 (AA) (1.5V) × 8
Dimensions: 200mm (L) × 140mm (W) × 80mm (D)
Weight: 1kg approx. (including batteries)
Environmental Protection: IP41 (IEC 60529)
Standard Compliance: IEC 61010-1 CAT II 1000V, CAT III 600V

Industrial Application:
This model is optimized for the preventative maintenance of high-tension cables, large-scale transformers, and industrial motors. In scenarios involving aging infrastructure, the 5000V output is critical for identifying leakage currents and insulation breakdown that lower-voltage testers cannot detect. The high-density analog scale allows technicians to observe real-time fluctuations in resistance, which is essential for diagnosing moisture ingress or carbon tracking in switchgear.

Logistics and Compliance:
Technical Compatibility: Compatible with standard high-voltage probes and earth leads.
Original Engineering: Authentic Kyoritsu precision-calibrated circuitry.
Lead Time: Standard industrial availability applies; contact for current stock status.
Certifications: CE marked, IEC 61010-1 safety standard compliant.

Key Attributes
Accuracy Class: ±5%
Current Range: 0 A ~ 10 A
Insulation Resistance: 5GΩ/200GΩ
Measuring Range: 5GΩ/200GΩ
Testing Voltage: 5000V
Place of Origin: Japan
Model Number: 3122B
Brand Name: Kyoritsu
Current Resolution: 1 mA
Dimensions: 177(L) x 226(W) x 100(D)mm
Display Type: Digital Only
Operating Temperature: -10 to 50℃
Speed Range: 10 m/s
Time Resolution: 10 ms
DC test voltage: 5000V
Measuring ranges: 5GΩ/200GΩ (Auto-ranging)
Accuracy: ±5%
Applicable standards: IEC 61010-031, IEC 61326-1, 2-2
Power source DC12V: LR14/R14 x 8
Dimensions: 380(L) x 430(W) x 154(D)mm
Weight (including batteries): 1.7kg approx.

Packaging and Delivery
Selling Units: Single item
Single package size: 39X43X16 cm
Single gross weight: 2.200 kg