1044 Voltage and Current Calibrator

Product 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.

The 1044 combines the advantages of digital accuracy with analog control. Progressing from the familiar functions of the 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 specifications. 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 voltage current calibrator 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 flow in a transducer loop. The 1044 can be used to check a 4-20mA system in either source or measure mode, 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.

Technical Specification:

VOLTAGE SOURCE

RANGE RESOLUTİON     ACCURACY         OUTPUT CURRENT         TEMP COEFFİCİENT     NOİSE

0 to 200mV        100μV  0.05% of full scale + 2 digits        20mA   ± 150ppm/°C              <30ppm of full scale

0 to 2V 1mV      0.05% of full scale + 2 digits       20mA    ± 150ppm/°C              <30ppm of full scale

0 to 20V             10mV   0.05% of full scale + 2 digits        20mA   ± 150ppm/°C              <30ppm of full scale

VOLTAGE MEASURE

RANGE RESOLUTİON     ACCURACY         INPUT IMPEDANCE        TEMP COEFFİCİENT

0 to 200mV        100μV  0.05% of full scale + 2 digits        1MΩ     ± 150ppm/°C

0 to 2V 1mV      0.05% of full scale + 2 digits       1MΩ     ± 150ppm/°C

0 to 20V             10mV   0.05% of full scale + 2 digits        10MΩ   ± 150ppm/°C

CURRENT SOURCE

RANGE RESOLUTİON     ACCURACY         OUTPUT VOLTAGE         TEMP COEFFİCİENT     NOİSE

0 to 200μA         100nA  0.05% of full scale + 3 digits        24V Max            ± 200ppm/°C        <50ppm of full scale

0 to 2mA            1μA       0.05% of full scale + 3 digits        24V Max            ± 200ppm/°C        <50ppm of full scale

0 to 20mA          10μA     0.05% of full scale + 3 digits        24V Max            ± 200ppm/°C        <50ppm of full scale

CURRENT MEASURE

RANGE RESOLUTİON     ACCURACY         SHUNT RESİSTANCE       TEMP COEFFİCİENT

0 to 200μA         100nA  0.05% of full scale + 3 digits        10Ω       ± 200ppm/°C

0 to 2mA            1μA       0.05% of full scale + 3 digits        10Ω       ± 200ppm/°C

0 to 20mA          10μA     0.05% of full scale + 3 digits        10Ω       ± 200ppm/°C

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          Can withstand open circuits, short circuits and reverse polarity up to 25V. Additional protection is by an internal fuse

Dimensions       H142 x W78 x D50mm

Weight 0.30kg

Supplied With   Leatherette carry case, 9V PP3 battery (installed), and user manual

Optional Extras 230V or 110V mains power supply. Calibration certificates traceable to NPL and UKAS.

Country of Origin           UK