4-2
12704A Resistivity Chamber Operation Manual
4. Specifications
4. Specifications
Electrode diameter JIS-K6911 – compliant
Main electrode: 50 ± 0.5 mm dia.
Guard electrode: 80 ± 0.5 mm dia. (outer) 70 ± 0.5 mm dia. (inner)
Opposed electrode: 83 ± 2 mm dia.
Electrode coefficient Volume resistivity: 19.63
Surface resistivity: 18.84
Accuracy (Electrode surface temperature: 23 ± 5°C)
Volume resistivity: ± 2%
Surface resistivity: + 5.3%
- 4.7%
Insulation resistance (Temperature: 0 to 40°C, relative humidity: 70% or less, 1000 VDC)
Main electrode – guard/opposed electrode: 1 × 10
15
or higher
Chassis – guard/opposed electrode: 1 × 10
9
or higher
Opposed electrode – guard electrode: 1 × 10
9
or higher
Main electrode – chassis: 1 × 10
14
or higher
Dielectric strength Main/guard/opposed electrode: 1000 VDC for a minute
All electrodes – chassis: 1100 VDC for a minute
Safety function LID signal (contact signal to be set open at cover opening)
Cover interlocking VS OFF switch
Connector Input terminal: triaxial connector
VS terminal: safety socket (banana terminal)
GND terminal: safety socket (banana terminal)
LID SIGNAL: BNC
Operating environment Operating temperature range: 0°C to +60°C
Operating relative humidity: 80% or less
Storage temperature range: -5°C to +60°C
Storage relative humidity: 80% or less
Dimensions 160 (W) × 77 (H) × 230 (D) mm (not including projections)
Mass 2 kg
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