Time Electronics

1007 DC Millivolt Potentiometer and Calibrator

Description
The 1007 is a versatile portable calibrator that can be used for potentiometric Features
voltage measurement in addition to its operation as a millivolt source. The null
zero and sensitivity are adjustable via front panel controls. Maximum sensitivity • 3 ranges up to 1 V
enables null balance to resolve 3 microvolt. • Accuracy 0.02 %
Three output ranges are provided to give adjustable output values from 1 µV • 20 mA output current
to 1 V with a basic 0.02 % accuracy. For signal injection, the operator needs to • Best resolution 1 μV
switch on, check the battery condition, select the range, and set the required
voltage using the thumbwheel switches. The 1007 uses a precision reference • Short circuit and overload protected
diode and low temperature coefficient resistors to give a highly stable output. • LED null measuring facility
Power is provided by 6 AA batteries. Battery life is several months, depending • Removable protective cover
on usage. The battery condition is monitored by an indicator mounted on the • Powered by 6 x AA batteries
top of the unit. The 1007 has up to 20 mA drive current and is short circuit and
• 100 hours typical battery life
overload protected. An off/normal/reverse output polarity switch is provided.
• Optional carry case
Safety Terminals: Fitted as standard and fully compatible with 4 mm
shrouded plugs, as well as standard plugs, bare wires, and spade terminals.

Added Protection: The 1007 comes fitted with an ergonomic rubber cover
providing increased protection and durability. It has a textured grip for
comfortable handling and openings at the top and bottom to allow access
to the battery meter and a position to place labels if required. It is easy to
remove if the user prefers a stand-alone unit or to house the 1007 in the
optional 9027 carry case.

Applications
Suitable for calibration and simulation of thermocouples. Accurate voltages
equivalent to the output from a thermocouple can be set quickly and easily
on the 1007, enabling fast calibration of temperature measuring equipment.
Alternatively, the 1007 can measure thermocouples output by operating as
a potentiometer. Other applications include chart recorder calibration, A/D
converter and multimeter calibration, and use as a stable voltage for
backing off DC offsets.

Time Electronics Ltd, Unit 5, T O N Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom
T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectronics.co.uk | www.timeelectronics.com
 Time Electronics
1007 DC Millivolt Potentiometer and Calibrator

Technical Specifications
Output...................................................................... 0 to 999.9 mV in 3 ranges:
................................................................................. 1 V range: 0 to 999.9 mV in 0.1 mV steps.
................................................................................. 100 mV range: 0 to 99.99 mV in 10 μV steps.
................................................................................. 10 mV range: 0 to 9.999 mV in 1 μV steps.

Accuracy................................................................. ± (0.02 % of setting + 0.02 % of range + 1 μV).

Output resistance................................................... Less than 0.2 Ω on 1 V and 100 mV ranges. 1 Ω on 10 mV range.

Maximum output current....................................... 1 V and 100 mV ranges: 20 mA. 10 mV range: Up to short circuit value although
................................................................................. it should be noted that loads of less than 1 kΩ will give greater than 0.1 % error.

Output voltage stability.......................................... Less than 60 ppm/°C. Less than 100 ppm per 3 months (non-cumulative).

Operating temperature.......................................... –10 °C to + 60 °C.

Output polarity........................................................ Positive or negative switch selected. A centre ‘off’ position is also provided.

Output noise level.................................................. Less than 30 ppm of full scale.

Reference source................................................... Precision zener diode, selected for stability and low temperature coefficient.

Maximum overload................................................. The instrument can withstand continuous short circuit on the output for all ranges.

Null Balance Display.............................................. On a front panel meter, zero and sensitivity controls are provided:
................................................................................. Maximum sensitivity: ± 20 µV f.s.d. ( 3 µV resolution).
................................................................................. Minimum sensitivity: ± 200 mV f.s.d.
................................................................................. Input resistance: Greater than 1 MΩ.

Power supply.......................................................... 6 AA size (51 x 14 mm) batteries. A battery condition display indicates when the batteries
................................................................................. should be changed. An alternative power source is 6 NiMH cells of the same dimensions.
................................................................................. These can be recharged via a socket on the top of the unit.
................................................................................. The 6 rechargeable batteries and mains recharger are available as an optional extra.

General Specification
Dimensions............................................................. 200 x 75 x 110 mm (215 x 100 x 120 mm including protective cover).

Weight...................................................................... 0.75 kg (1.2 kg including protective cover).

Optional extras....................................................... Leather carry case.

Country of origin..................................................... UK.

Ordering Information
1007......................................................................DC Millivolt Potentiometer and Calibrator
9027......................................................................... Carry case
9529......................................................................... Rechargeable battery pack (6 NiMH cells and 240 V mains charger)
9528......................................................................... Rechargeable battery pack (6 NiMH cells and 110 V mains charger)
C150......................................................................... Traceable calibration certificate (Factory)
C100......................................................................... Accredited calibration certificate (ISO 17025)

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

Time Electronics Ltd, Unit 5, T O N Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom v2a
T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectronics.co.uk | www.timeelectronics.com 03/20