Time Electronics 1044 Specifications

Time Electronics

1044 Voltage and Current Calibrator

• Measure voltage and current

• Source voltage and current

• 3 voltage ranges 0 to 20V

• 3 current ranges 0 to 20mA

• Accuracy 0.05%

• 4.5 digit LCD display

• 28 hours typical battery life

• Supplied with carry case

SOFTWARE

DESCRIPTION

A precision handheld calibrator that can be used as a general purpose current and voltage source.
High performance and simple operation make it suitable for test engineers, R&D, service, and calibration
technicians. Offering both versatility and practicality the 1044 can source and measure voltage and current.
The 0.05% accuracy is ideal for simulation and calibration in most engineering applications.

• Optional mains power supply

The 1044 combines the advantages of digital accuracy with analog control. Progressing from the familiar
functions of the Time Electronics 1030 calibrator, the 1044 offers more ranges, better accuracy and the
ability to measure as well as source.

The large, easy to read LCD display shows the actual output, even when the connected load exceeds the

specications. This important feature eliminates the risk of large errors when connecting to unknown loads.

The display also indicates if the battery becomes critically low.

In the source mode, voltage up to 20V and current up to 20mA are generated in three ranges. When in current
source mode the 1044 has a high 24V compliance voltage which is ideal for powering process loops.

In the measurement mode, the range and function can be easily selected, with the measured input accurately
shown on the LCD display.

The 1044 is housed in a pocket sized, ABS case and comes with a leatherette carry case containing a
compartment for storing test leads. Connections are by standard 4mm plugs or by simply clamping the
wires under the terminals. A single 9V battery powers the unit or an external 12V DC power supply may be
used which disconnects the internal battery.

APPLICATIONS

Common use of the 1044 is to simulate a transducer or measure the current ow in a transducer loop.
The 1044 can be used to check a 4 to 20mA system in either source or measure modes of operation, with
the 24V compliance voltage powering the loop when current source mode is selected.

In the source mode, the 1044 may be used to calibrate meters, thermocouple indicators, data loggers, for
signal injection, semiconductor characterisation, or as a backing off source. In the measure mode, the 1044
may be used in the same way as a DMM, checking DC voltages and current over 3 ranges with excellent
resolution and accuracy.

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1044 Specifications

TECHNICAL SPECIFICATION

VOLTAGE SOURCE

Range Resolution Accuracy Output Current Temp Coefcient Noise

0 to 200mV 100µV

0.05% of full scale
+ 2 digits

0 to 20V 10mV

VOLTAGE MEASURE

Range Resolution Accuracy Input Impedance Temp Coefcient

0 to 200mV 100µV

0.05% of full scale
+ 2 digits

0 to 20V 10mV 10MΩ

CURRENT SOURCE

Range Resolution Accuracy Output Voltage Temp Coefcient Noise

0 to 200µA 100nA

0.05% of full scale
+ 3 digits

0 to 20mA 10µA

20mA ± 150ppm/°C <30ppm of full scale0 to 2V 1mV

1MΩ

24V Max ± 200ppm/°C <50ppm of full scale0 to 2mA 1µA

± 150ppm/°C0 to 2V 1mV 1MΩ

CURRENT MEASURE

Range Resolution Accuracy Shunt Resistance Temp Coefcient

0 to 200µA 100nA

0.05% of full scale
+ 3 digits

0 to 20mA 10µA

Connections ........................................ Made by 4mm connectors or clamped using the wire compression feature.

Power .................................................. PP3 size, 9V battery. Approximately 28 hours life depending on the current sourced.

............................................................. Alternatively an optional 12V power supply can be plugged into the 2.5mm socket on the

............................................................. top of the unit.

Protection ............................................ The 1044 can withstand open circuits, short circuits and reverse polarity up to 25V.

............................................................. Additional protection is by an internal fuse.

10Ω ± 200ppm/°C0 to 2mA 1µA

GENERAL SPECIFICATION

Dimensions ......................................... H142 x W78 x D50mm

Weight ................................................. 0.30kg

Optional Extras .................................... 230V or 110V Mains Power Supplies

............................................................. Calibration Certicates – traceable to NPL and UKAS

Country of Origin ................................. UK

ORDERING INFORMATION

1044 .................................................... Voltage and Current Calibrator

7643..................................................... 230V Mains Power Supply

7652..................................................... 110V Mains Power Supply

C156 .................................................... Factory (NPL Traceable) Calibration Certicate

C133 .................................................... UKAS Calibration Certicate (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: [phone] F: [phone] E: [e-mail]

www.timeelectronics.com

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