Time Electronics

1048 Voltage / Current / Loop Calibrator

Time Electronics Ltd, Unit 5, TON 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

v2b

07/22

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

Technical Specifications

Voltage source

Range

Resolution

Accuracy

Output current

Temp coefficient

0 to 220 mV

10 μV, 100 μV above 0.2 V

0.05 % of FS

20 mA

± 6 ppm/°C

0 to 2.2 V

100 μV, 1 mV above 2 V

0.02 % of FS

0 to 22 V

1 mV, 10m V above 20 V

0.02 % of FS

Voltage measure

Range

Resolution

Accuracy

Measure load

Temp coefficient

0 to 220 mV

10 μV, 100 μV above 0.2 V

0.05 % of FS ± 1 digit

1 MΩ

± 3 ppm/°C

0 to 2.2 V

100 μV, 1 mV above 2 V

0.02 % of FS ± 1 digit

1 MΩ

0 to 22 V

1 mV, 10 mV above 20 V

0.02 % of FS ± 1 digit

10 MΩ

Current source

Range

Resolution

Accuracy

Output voltage

Temp coefficient

0 to 220 μA

10 nA, 0.1 μA above 200 mA

0.05 % of FS

24 V Max

± 12 ppm/°C

0 to 2.2 mA

0.1 μA, 1 μA above 2 mA

0.02 % of FS

0 to 22 mA

1 μA, 10 μA above 20 mA

0.02 % of FS

Current measure

Range

Resolution

Accuracy

Input load

Temp coefficient

0 to 220 μA

10 nA, 0.1 μA above 200 mA

0.05 % of FS ± 1 digit

1 kΩ

± 8 ppm/°C

0 to 2.2 mA

0.1 μA, 1 μA above 2 mA

0.02 % of FS ± 1 digit

110 Ω

0 to 22 mA

1 μA, 10 μA above 20 mA

0.02 % of FS ± 1 digit

16 Ω

Settings and General Specifications

Sink (Tx Sim)............................... 2 wire transmitter simulation: External excitation voltage, 3 V min, 50 V max.

......................................................... The current sink levels are adjustable,with accuracies as per the 3 source ranges shown above.

............................................................Note: Accuracies in all measure modes are ± 1 digit.

Output steps .................................5 fixed 4 mA steps for current output 4, 8, 12, 16 and 20 mA.

..................................................... 11 fixed 1 V steps for voltage output 0,1,2...10 V.

..................................................... 21 fixed steps 1 V/1 mA for V and I output 0,1,2...20.

......................................................... Stepping can be done manually or automatically (Autostep). Stepping speed is adjustable (1 - 9 sec/step).

......................................................... Dwell time (top and bottom) is one step period. In step mode the accuracy is limited to 0.05 % of span ± 1 digit.

Output adjustment........................A ten turn potentiometer for quick setting, with fine adjust using up/down increment buttons.

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

Power.............................................PP3 size, 9 V battery. Approximately 20 hours life depending on the current sourced.

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

Protection......................................The 1048 can withstand open circuits, short circuits and reverse polarity up to 25 V. Additional protection is by an internal fuse.

Operating temperature ................–10 to 50 °C.

Storage temperature....................–30 to 70 °C.

Operating humidity.......................0 to 90 % non-condensing at 25 °C.

Dimensions ...................................H 142 x W 78 x D 50 mm.

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

Optional extras .............................230 V or 110 V mains power supplies. Calibration certificates: Traceable (Factory) and Accredited (ISO 17025).

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

Ordering Information

1048............................................. Voltage/Current/Loop Calibrator

7643................................................Mains power supply (230 V)

7652................................................Mains power supply (110 V)

C176...............................................Traceable calibration certificate (Factory)

C138...............................................Accredited calibration certificate (ISO 17025)