Features
3.5 Digit LCD Meter
4-20mA Loop Powered
Wide Adjustment Range
Auto-polarity on Display
Low Volt Drop
A compact loop powered indicator giving an accurate, zero corrected indication of 4-20mA loop current. Calibration is by two multi-turn potentiometers which allow sensitive adjustment of the instrument. The DPM 342 features an integral snap-in bezel, making installation easy. The module's LED backlighting ensures a clear display, even under low light conditions. No soldering is required. Connection to the current loop is via two screw terminals. The correct decimal point is selected via a jumper link.
| Specification |
Min. |
Typ. |
Max. |
Unit |
| Accuracy (overall error) * |
0.05 |
|
0.1 |
% (±1 count) |
| Linearity |
|
|
±1 |
count |
| Sample rate |
|
3 |
|
samples/sec |
| Operating temperature range |
0 |
|
50 |
°C |
| Temperature stability |
|
200 |
|
ppm/°C |
| Loop volt drop |
5 |
5.6 |
6 |
V d.c. |
| Supply current |
4 |
|
20 |
mA |
| Full scale reading (@20mA) |
0 |
|
1999 |
Count |
| Offset adjustment range + (span x 0.25) |
-950 |
|
+950 |
Count |
* To ensure maximum accuracy, re-calibrate periodically