Guildline Instruments 6645Q Quantum Hall System for primary resistance standards

Linearity

± 0.005 ppm (1:1 to 13.4:1 Ratios)

Display resolution (ppm)

Selectable (Programmable) from 0.0001 ppm to 10 ppm

Temperature Coefficient

0.01 ppm/°C of reading (Outside Operating Temperature)

Automatic current reversal rate (in seconds)

4 to 1637 programmable, increment of 1 second

Fastest Measurement Sample Rate

2 seconds

Communication

USB, IEEE 488.2, SCPI Based Language Instructions

Test current (for measurements to 100 kO)

Range (±30Vdc compliance)

10 μA to 150 mA

Resolution (μA)

1 μA

Accuracy [error(ppm) + offset(A)]

±100 ppm± 10 μA

Bridge Operating Temperature to Full Specifications

21 °C to 25 °C

69.8 °F to  77 °F

Bridge Maximum Operating Range (<50 % RH)

+ 18 °C to +28 °C

+65 °F to +82 °F

Bridge Temperature Storage Range

-20 °C to +60 °C

-4 °F to+ 140 °F

Power Requirements

I

Vac: 100 V, 120 V, 220 V, 230 V and 240 V; All ± 10 %

50 or 60 Hz ±5 %, Or 45 Hz – 65 Hz

Dimensions (Width x Height x Depth)

Weight

440 mm x 200 mm x 465 mm

I

17.3″x7.8″x 18.3″

27 kg

I

59.5 lbs