User Manual

2
V1.1 Page | 2 1067 Technical Manual
Contents
1. S pecification ..................................................................................................... 2
2. Operation .......................................................................................................... 3
3. Guarantee & S ervicing ..................................................................................... 3
All Time Electronics' instruments are subject to continuous development and improvement and in
consequence may incorporate minor detail changes from the information contained herein.
1. Specification
Resistance range: 10 milliohms to 12k ohms
Number of decades: 6, each decade settable from 0 - 11
Increments: 10 milliohms steps
Accuracy: At calibration temperature of 22°C. ± 0.01% of
setting ± 2 milliohms, after deduction of residual end
resistance ± 1mR for residual variation
Current rating: 10mR range: 3A
100mR range: 2A
1R range: 600mA
10R range: 200mA
100R range: 60mA
1K range: 20mA
Residual end resistance: Less than 10 milliohms
Less than 1 milliohm variation
Temperature coefficient: Less than 10 ppm per °C (> 1 ohm)
Less than 20 ppm per °C (< 1 ohm)
Maximum voltage: 200 DCV at maximum resistance setting
Insulation: Case to resistance terminals 2kV / 50Hz max
Operating torque: Less than 0.1 Nm
Stability: Better than 20 ppm per year (>1 ohms)
Better than 100 ppm per year (<1 ohms)
Contacts: Make before break - Silver Alloy
Dimensions/Weight: 87mm x 63mm x 355mm. Weight: 1.1Kg
Options: 19” rack mount case, 2U height : 445 x 85 x 255mm
Calibration certificates (NPL and UKAS)
If voltages above 70V DC or 30V AC (RMS) are present the optional terminal shroud
kit (Part No. 9723) must be fitted.