Precision Digital Pressure Gauge
Overview
The APSL312 series Precision Digital Pressure Gauge measures both pressure and ambient temperature and can integrate dual pressure modules, allowing it to verify pressure transmitters, pressure switches and pressure gauges. Through a standard RS232 interface it supports online verification, data processing, and printing of verification records and certificates.
It is well suited to both field and laboratory use: it can connect to a fully automatic pressure calibration bench as an external pressure module, or link to various pressure sources to form a complete pressure calibration system. Using advanced micro-power components and distinctive software processing, it continuously and faithfully measures pressure values, and its backlight keeps the display clearly visible in dark environments.
The dual-range version houses two built-in pressure modules, doubling the pressure coverage—this reduces how often the gauge must be swapped, lowers the chance of over-pressure sensor damage, and halves the number of gauges needed on site. Dual-range gauges achieve perfect coverage of the calibration range with no gaps between them when verifying pressure transmitters, so the same number of gauges covers a wider range.
Specifications
- Reference standard
- Verifies pressure transmitters, switches & gauges
- Pressure range
- (-100 kPa ~ 100 MPa); 1-2 pressure modules per gauge
- Accuracy
- Class 0.02 / 0.05
- Pressure units
- 12 units: MPa, PSI, inHg, inH₂O, mmHg, mmH₂O, kPa, bar, mbar, atm, kg/cm², Pa
- Display
- 5- or 6-digit LCD with backlight, Chinese display supported
- Communication
- RS232 (online verification, data processing, certificate printing)
- Process connection
- Gauge/absolute/compound M20×1.5; differential φ4 quick-connect socket
- Power output
- Built-in 3.7 V / 3500 mAh removable rechargeable Li battery
- Operating temperature
- -5 ~ 50 °C
- Dimensions
- φ108 × 43 mm, total length 170 mm
- Weight
- 0.6 kg
