1067 Precision Resistance Box Data Sheet0 pages

Time Electronics

1067 Precision Resistance Decade Box
• 10mΩ to 12kΩ
• 0.01% accuracy
• Precision PT100 simulation
• Low temperature coefficient
• In-line readout
• Excellent long term stability
• 6 digit resolution
• Fully screened
DESCRIPTION
A precision resistance decade box suitable for a wide range of simulation work. High accuracy, long term stability, and
low temperature coefficient make the 1067 ideal for simulating and calibrating precision PT100 sensors and temperature
indicators/meters that use resistive sensors.
Special care has been taken in the construction of the 1067 to ensure that the residual end resistance is as low and
as stable as possible. Multiple self-cleaning silver alloy contacts are used for each position to ensure outstanding
performance and long life.
Housed in a robust metal case the 1067 is fully screened and low thermal emf terminals are used. The slim line design
means it takes up minimum bench space and is easily transportable.
Resistance is selected by dialling the value required using the rotary switches. This enables precise setting with a clear
unambiguous indication. Each decade is scaled from 0 to 11 and therefore allows convenient overlap of the set values.
The maximum value settable is 12,222.21 ohms.
SPECIFICATIONS
Range / Resolution................................... 0 to 12kΩ / 10mΩ steps
Number of Decades.................................. 6, each decade settable from 0 to 11
Accuracy................................................... ± 0.01% of setting ± 2mΩ, after deduction of residual end resistance ±1mΩ
.................................................................. for residual variation. At calibration temperature of 22°C.
Residual Resistance.................................. Less than 10mΩ. Less than 1mΩ variation
Power Rating............................................. 0.35 watt per resistor
Voltage Rating........................................... Maximum 200V DC/AC RMS
Stability...................................................... 20ppm/year (>1Ω), 100ppm/year (<1Ω)
Current Rating........................................... 10mΩ range: 3A, 100mΩ range: 2A, 1Ω range: 600mA, 10Ω range: 200mA,
.................................................................. 100Ω range: 60mA, 1kΩ range: 20mA
Insulation................................................... Case to resistance terminals 2kV / 50Hz maximum
Temperature Coefficient............................ Less than 10ppm/°C (> 1Ω). Less than 20ppm/°C (< 1Ω)
Operating Torque...................................... Less than 0.1Nm
Contacts.................................................... Make before break – silver alloy
Dimensions / Weight................................. W355 x H63 x D89mm / 1.1kg
ORDERING INFORMATION
1067.......................................................... Precision Resistance Decade Box
C161.......................................................... Factory Calibration Certificate (NPL)
C114.......................................................... UKAS Calibration Certificate (ISO 17025)

Due to continuous development Time Electronics reserves
the right to change specifications without prior notice.

Time Electronics Ltd, Unit 11 Sovereign Way, Botany Industrial Estate, Tonbridge, Kent, TN9 1RH. United Kingdom.
T: +44 (0) 1732 355993 F: +44 (0) 1732 770312 E: mail@timeelectronics.co.uk

www.timeelectronics.com

v1c 22/3/11