Instek GOM-802 DC Milli-Ohm Meter
The Instek GOM-802 is a high-precision DC milli-ohm meter designed for accurate low-resistance measurements. It features a wide measurement range, high resolution, and excellent stability. Ideal for testing contact resistance, coil resistance, and other low-resistance components.
- Model
- Instek GOM-802
- Calibration
- Available on request
- Price
- $450
- Status
- In stock
- RFQ ref
- GOM-802
This unit
The Instek GOM-802 is a precision DC milli-ohm meter designed for low-resistance measurement across a 30 mΩ to 3 MΩ range with 0.05% accuracy and 1 µΩ resolution. Built on four-terminal Kelvin measurement technique, it delivers stable results across demanding test environments including contact resistance verification, coil evaluation, and material conductivity assessment.
Technical Specifications
Display: 30,000 counts
Accuracy: 0.05%
Measurement Range: 30 mΩ to 3 MΩ
Resolution: 1 µΩ
Test Current: 1 µA to 1 A (range-dependent: 10 mA at 30 mΩ, 100 mA at 300 mΩ–30 Ω, 1 mA at 300 Ω, 100 µA at 3 kΩ–30 kΩ, 10 µA at 300 kΩ, 1 µA at 3 MΩ)
Sampling Rate: 7 samples/sec (30,000 counts) or 30 samples/sec (3,000 counts)
Operating Temperature: 18°C to 28°C
Warm-up Time: 30 minutes
Power: AC 100/120/220/230 V, 50/60 Hz
Dimensions: 251(W) × 91(H) × 291(D) mm
Weight: Approximately 3 kg
Key Features
Four-terminal Kelvin measurement eliminates lead resistance errors
Continuous or triggered measurement modes for flexible test workflows
Relative (REL) measurement, actual value, and percentage value measurement functions
Hi/Lo comparator with limit percent setting and Go/NoGo testing capability
PASS/FAIL alarm output with memory storage for 20 sets of Hi/Lo/GO settings
Diode test and temperature measurement with compensation
Manual or autoranging
Auto-recall of last setting after power cycle
Handler interface with PASS, FAIL, HI, LO, READY, and EOT output signals plus trigger input
Typical Applications
Contact resistance testing in switches and relays
Coil resistance evaluation in motors and transformers
Material conductivity assessment
Quality assurance and component validation
Go/NoGo production testing with integrated comparator
Compatibility & Integration Standard: Handler interface with scan support and output/input signal control Optional Interfaces: RS-232C (DB-9 male connector) and GPIB Accessories: PT-100 platinum temperature probe, GTL-232 RS-232C cable, GTL-108A test leads (included)
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 50/60 Hz |
Instek GOM-802 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Instek GOM-802. Calibration covers impedance magnitude accuracy at 100 Hz, 1 kHz, 10 kHz, and 100 kHz, dissipation factor (D) and quality factor (Q) accuracy, phase angle accuracy, open and short compensation verification, and cable length compensation. HP/Keysight 4284A additionally verified at 1 MHz.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Instek GOM-802 faults: GPIB interface board failure, display failure, guard terminal switch contact wear, oscillator calibration drift on older analog bridges. HP 4284A and 4285A most common faults are HPIB interface board failure and display contrast loss. The internal oscillator and vector measurement circuits are highly stable and rarely fail. Wayne Kerr and GenRad bridge instruments may develop switch contact wear on decade resistance/capacitance dials.
Instek GOM-802 price
This Instek GOM-802 is listed at $450. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Instek GOM-802 calibration cost
NIST-traceable calibration for the Instek GOM-802 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers impedance magnitude accuracy at 100 Hz, 1 kHz, 10 kHz, and 100 kHz, dissipation factor (D) and quality factor (Q) accuracy, phase angle accuracy, open and short compensation verification, and cable length compensation. HP/Keysight 4284A additionally verified at 1 MHz.. Turnaround is 1 to 3 business days after receipt. See full calibration details →
