GRT350-NIST : 4-Wire Resistance/Resistivity Tester

Features:

• Earth resistivity (r) test
• 4-wire, 3-wire, and 2-wire testing
• Large dual line LCD
• Autoranging
• Automatic I (current) spike check
• Automatic P (potential) spike check
• Test Hold function for easy operation
• AC Earth Voltage
• Data Hold and Auto Power Off
• Overrange and low battery indication
• Store/recall up to 200 test results

Specification

• Earth Resistance Ranges
• Ranges : 0-20Ω, 0-200Ω, 0-2kΩ
• Accuracy : ±(2%rdg+3dgt)
• Earth Resistance Resolution : 0-20Ω : 0.01Ω,0-200Ω : 0.1Ω,0-2kΩ : 1Ω
• Earth Voltage
• Range : 0-300VAC (40 to 500Hz)
• Accuracy : ±(2%rdg+3dgt)
• Earth Resistivity Ranges (ρ) (ρ = 2 πLR) L = distance between probes R = resistance : 0.06-6.28 kΩ.m,0.62-62.8 kΩ.m,6.28-628 kΩ.m
• Test Frequency : 820Hz
• Test Current : 2mA
• Data Memory : 200 manual locations
• Temperature & Humidity
• Operating : 0 to 50°C (32 to 122°F); ≤80%R.H.
• Storage : -10 to 60°C (14 to 140°F); ≤80%R.H.
• Altitude : 2000m (6500') max
• Power Source : 1.5V(AA) x 8 batteries
• Dimensions : 250mm x 190mm x 110mm (9.84" x 7.5" x 4.33")
• Weight : Approx. 1430g (batteries installed)
• Fuse : 500mA/500V (5 x 20mm) fast blow, ceramic type
• Safety Standards : CAT IV-300V, EN 61010-1, EN 61326-1, EN 61557-1, EN 61557-5