The SP 5-1200-BL is an easy-to-mount LCD digital panel meter with a 4 to 25V measurement range and 100mV resolution and is powered from the signal it is measuring. Only valid readings are displayed; the module indicates "LO" at voltages below 4V and "HI" at voltages above 25V. Screw terminals allow for quick and easy connection. The module is panel mounted using the metal clip provided and a rubber seal is included, providing splashproof protection for the unit when fitted to the meter during installation.
The SP5-1200-BL is a compact LCD digital panel meter that measures voltages from 4 V to 25 V DC with 100 mV resolution. It is powered directly from the signal it measures and includes reverse‑polarity protection, splash‑proof housing, and optional LED backlighting.
The manual covers electrical specifications, safety compliance (Low Voltage Directive and BS EN 61010), dimensions, panel fitting, screw‑terminal functions, and wiring diagrams for both 2‑wire and optional 3‑wire operation. Installation notes, scaling limits, and application guidance are also provided.
| Measurement range | 4 V to 25 V DC |
|---|---|
| Resolution | 100 mV DC |
| Sample rate | 3 samples/second |
| Accuracy (overall error) | ±0.2 V (1 count) |
| Linearity | 1 count |
| Operating temperature range | 0 °C to 50 °C |
| Supply voltage (meter) | 3 V to 50 V DC |
| Backlighting supply voltage | 5 V DC |
| Meter supply current (at 9 V) | 1.5 mA |
| Backlighting current | 50 mA |
| LCD digit height | 18 mm (0.7 in) |
It measures voltages from 4 V to 25 V DC.
No calibration is required; the meter is pre‑calibrated.
The backlighting can be powered from a separate 5 V supply or, with a jumper, from the measured voltage’s OV line for 3‑wire operation.