MCGO

005/6/8 SPECIFICATIONS

008-B

008-A

006-C

006-B

006-A

005-B

Decade

Accuracy

Current Max

10 x 0.001Ω

 ± 2%

1.4A

10 x 0.01Ω

 ± 1%

1.4A 

10 x 0.1Ω

 ± 0.5%

 1.4A

10 x 1Ω

 ± 0.2%

 300mA

10 x 10Ω

 ± 0.01%

 100mA

10 x 100Ω

 ± 0.01%

 30mA

10 x 1kΩ

 ± 0.01%

 18mA

10 x 10kΩ

 ± 0.01%

 5mA

10 x 100kΩ

 ± 0.01%

 1.8mA

10 x 1MΩ

 ± 0.05%

 0.3mA

Model

No. Decades

Total Resistance

Resolution

Suitable for Pt100 Simulation

Resolution °C when Simulating Pt100

Residual Resistance Ω

005-B

5

1,112.10Ω

0.01

0.025

1Ω

006-A

6

1,112.11Ω

0.001

0.0025

1Ω

006-B

6

11,112.10Ω

0.01

0.025

1Ω

006-C

6

111,111Ω

0.1

---

70mΩ

008-A

8

111,112.11Ω

0.001

0.0025

1Ω

008-B

8

1,111.112.1Ω

0.01 

0.025

1Ω

Calibration

Weight

Calibration certificates including UKAS traceable are available on request

005 - 0.5kg

006 - 0.6kg

008 - 0.8kg

Switches

Size

Contact material gold plated brass
Contact resistance = 5 milli ohm Insulation Resistance (all paths = 10 giga ohm) Proof voltage 1kV

350mm x 100mm x 80mm (W H D) approx (all models)

Resistors

Temperature Co-efficient:
±3ppm / +20°C to + 85°C ±5ppm maximum over –55°C to +125°C 0.1, 0.01, & 0.001 dials 10ppm/°C

Full Load Stability:
±35ppm/10,000 hours ±50ppm/26,000 hours

No Load Stability:
±25ppm/10,000 hours ±35ppm/26,000 hours

Over full temperature range:
-50°C to +125°C

Power Rating:
0.33 watt (+85°C) 0.25 watt (+110°C)

Maximum Continuous Working Voltage:
70Vdc / 33vrms

Noise:
Essentially non-measurable <1.5 mV/°C

Thermal E.M.F:
<0.4mV/°C typical

Encapsulation:
Moulded epoxy

Windings:
Exclusive 'air cushioned' technique provides virtually stressless elements for improved performance. Non inductively wound. Direction of winding reversed at half turns point