- Hamilton01698 829711
- Leeds0113 235 1356
- Belfast02890 830302
Time 1048 Voltage/Current/Loop Calibrator
Includes: Leatherette carry case, 9V PP3 battery (installed), and user manual.
The Time 1048 is a portable instrument that operates as a current and voltage source and a multi-purpose loop calibrator. High performance and simple operation make it suitable for R&D, service, process control engineers, and calibration technicians. As a versatile handheld calibrator, the source and measure capabilities with 0.02 % accuracy mean the 1048 is a compact solution for most simulation and test applications.
Common use of the 1048 is to simulate a transducer or measure the current flow in a transducer loop. As a process calibrator it can be used to check a 4 to 20 mA system in either source or measure modes of operation. The 24 V compliance voltage powering the loop when current source mode is selected.
In source mode the Time 1048 can test and calibrate meters, thermocouple indicators, data loggers. It can also be used for signal injection, semiconductor characterisation, or as a backing off source. In measure mode it can operate as a multimeter, accurately checking DC voltages and currents over 3 ranges.
FEATURES
Source/measure voltage and current.
3 source ranges: 0 to 22 mA & 0 to 22 V.
3 measure ranges: 0 to 70 mA & 0 to 50 V.
Accuracy 0.02 %.
Transmitter simulator/sink loop control.
Output steps and ramps.
Fine adjustment.
20 hours typical battery life.
Optional mains power supply.
Voltage Source | ||||
Range | Resolution | Accuracy | Output Current | Temp Coefficient |
0 to 220 mV | 10 μV, 100 μV above 0.2 V | 0.05 % of full scale | 20 mA | ± 6 ppm/°C |
0 to 2.2 V | 100 μV, 1 mV above 2 V | 0.02 % of full scale | 20 mA | ± 6 ppm/°C |
0 to 22 V | 1 mV, 10 mV above 20 V | 0.02 % of full scale | 20 mA | ± 6 ppm/°C |
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 | ± 3 ppm/°C |
0 to 22 V | 1 mV, 10 mV above 20 V | 0.02 % of fs ± 1 digit | 10 MΩ | ± 3 ppm/°C |
Current Source | ||||
Range | Resolution | Accuracy | Output Voltage | Temp Coefficient |
0 to 220 μA | 10 nA, 0.1 μA above 200 mA | 0.05 % of full scale | 24 V max | ± 12 ppm/°C |
0 to 2.2 mA | 0.1 μA, 1 μA above 2 mA | 0.02 % of full scale | 24 V max | ± 12 ppm/°C |
0 to 22 mA | 1 μA, 10 μA above 20 mA | 0.02 % of full scale | 24 V max | ± 12 ppm/°C |
Current Measure | ||||
Range | Resolution | Accuracy | Measure 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 | ± 8 ppm/°C |
0 to 22 mA | 1 μA, 10 μA above 20 mA | 0.02 % of fs ± 1 digit | 16 Ω | ± 8 ppm/°C |
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 in 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 & 20 mA. 11 fixed 1 V steps for voltage output 0,1,2...10 V. 21 fixed steps 1 V/1 mA for V & 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. |
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Output Ramp | Current Ramp 4 to 20, or 0 to 20 on all ranges. Voltage Ramp 0 to 10, or 0 to 20 on all ranges. Ramp time 7 seconds. Dwell (top/bottom) 5 seconds. Manual restart. Ramp operation is also available in Sink (TX SIM). |
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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. | |||
General Specifications | ||||
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Operating Temperature | -10 to 50 °C. | |||
Storage Temperature | -30 to 70 °C. | |||
Power | PP3 size, 9 V battery (supplied). | |||
Battery life | Approximately 20 hours life depending on the current sourced. Optional 12 V power supply can be plugged into the 2.5 mm socket on the top of the unit. | |||
Dimensions | HH 142 x W 78 x D 50 mm. | |||
Weight | 0.30 kg. |
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