![[image]](gifs/dataprecision1450.gif)
Description
The Data Precision Model 1450 is a line powered, 4 1/2 digit multimeter for measuring
DC or AC voltages, DC or AC currents, or resistance with 0.005% resolution in
21 range scales and with 100% overrange capability.
| DC Voltage | |
|---|---|
| Ranges | 1 V to 1000 V in 4 ranges |
| Accuracy | ±(0.02% of reading) |
| Input Resistance | 1000 Mohms at 1 V, 10 Mohms at all other ranges |
| DC Current | |
| Ranges | 1 mA to 1000 mA in 4 ranges |
| Accuracy | 1 mA through 10 mA ± (0.1% of reading) |
| 100 mA through 1000 mA ± (0.2% of reading) | |
| Resistance | |
| Ranges | 1 Kohm to 10 Mohm in 5 ranges |
| Accuracy | 1 Kohm through 100 Kohm ± (.07% of reading) |
| 1000 kohm ± (0.1% of reading) | |
| 10 Mohm ± (0.25% of reading) | |
| AC Volts | |
| Ranges | 1 V through 500 V in 4 ranges |
| Accuracy | ± (1.0 % of reading ) |
| Freq. range | 30 Hz - 50 KHz sine wave |
| Input Impedance | 1 Mohms |
| AC Current | |
| Ranges | 1 mA through 1000 mA in 4 ranges |
| Accuracy | all ranges ± (1.8% of reading) |
| Freq. range | 30 Hz - 50 KHz |
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Model 1450 DMM is operated simply by selecting an appropriate
full scale range with one front panel rotary switch and a measurement mode with
the other. The measured input signal is displayed on 7 segment planar characters,
and the polarity of DC measurements is automatically displayed while the decimal
point tracks the manual selection of the full scale range.
Measurements up to 100% overrange beyond the full scale will be within the specified
accuracy and displayed as for in-range measurements. Overload signals, beyond
the overrange limits on any selected range scale, are automatically sensed,
and an Overload indication display is presented. The overload display retains
the polarity sign and decimal indication, while blanking all the decimal digits.
This is a signal to shift to a higher full scale range. The Model 1450 circuitry
is protected against damage from an overload signal within the limits allowed
by the specifications.
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