Define Instruments SD-50X: Indicator, Controller, panel-mount, loop powered
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This meter is popular for its versatility and compactness, and for its ability to be powered from the 4-20mA current loop input signal. Simple (key-in) calibration removes the need for an input signal.
It can be used to measure a variety of process variables such as flow, level, pressure and temperature.
- 3 buttons
- 13mm LED display, 6 digits (6’th digit is a descriptor)
- IP65 dust and splash-proof
- Short-depth panel mount case -
(H x W x D) 48 x 96 x 19mm
From the makers of the world's first 4-20mA loop-powered indicator comes the SD-50X - designed to be powered from the 4-20mA current loop input signal. This versatile, compact meter can be used to measure a variety of process variables.
- 4-20mA DC input - powered by input signal
- Selectable decimal point position
- Wide variety of possible applications
- Compact, short-depth case
| Specifications | |
| Input configuration
| series connection to 4-20mA DC current loop. 3.4V drop, plus 20Ω (equivalent of 3.9V at 20mA). |
| Full scale ranges | standard meter is adjustable to any display span between -19,999 and +30,000. Max resolution (50,000 counts) from any signal input span between 3.5 and 27.5mA. |
| A/D converter | 16 bit Sigma Delta |
| Accuracy | ±0.02% of reading (plus 2 digits) |
| Temperature coefficient | typically 30ppm/°C (plus 0.1 counts/°C for zero off set). |
| Conversion rate | 3 readings per second |
| Display | 12.6mm Liquid Crystal Display |
| Descriptors | Dip-switch selectable dummy zero/°C/°F |
| Decimal point | user programmable to six positions |
| +/- Over-range | Display shows – – – – – – |
| Powered from the 4-20mA current loop input signal. | Min input 3.5mA, max continuous input 100mA. 3.4V drop plus 20Ω (equivalent to 3.9V at 20mA). Typically load is 200Ω. |
| Case dimensions | 95x47mm. (29mm depth behind panel, including connector). 92x45mm panel cutout |
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