High-Static Differential Pressure Automatic Calibration Bench
Overview
The APSL701 series High Static Pressure Differential Pressure Fully Automatic Pressure Calibration System is a patented product of our company, covering five patents (ZL201220302065.8 built-in pressure module calibration platform;
ZL201220302053.5 high static pressure differential pressure transmitter automatic calibration platform; ZL201220302062.4 HART-based automatic calibration platform; ZL201220327679.1 automatic calibration platform;
ZL201230276258.6 appearance design).
The platform has a built-in high-accuracy static pressure sensor and differential pressure sensor. When verifying a high-static-pressure differential-pressure transmitter, you simply set the static pressure setpoint and the differential-pressure range and press "Start": the system verifies automatically—first opening the differential-pressure bypass valve and applying static pressure; once the static pressure reaches the setpoint, it verifies from 0% to 100% of the differential-pressure range according to the set number of points, automatically recording the data.
Connected to a computer, it can automatically print the verification report. The working medium is air or transformer oil, requiring no external high-pressure gas source and no air venting during verification.
The internal pipes are relatively large in diameter and fitted with a gas-liquid separator, so it tolerates devices under test that carry water or oil. Standard verification points are at 0%, 25%, 50%, 75% and 100% of range with automatic return (freely configurable via computer), with custom points allowed anywhere; the default dwell time per point is adjustable from 10 to 240 s, and a full 9-point transmitter run takes about 7 minutes.
It provides over-pressure, over-current and pressure-module fault protection, a DC 24 V/30 mA loop supply that will not damage a standard gauge if mis-connected, an M20×1.5 female quick connector, φ4 standard banana jacks and an automatic verification software option.
Specifications
- Reference standard
- Auto-verifies high static pressure differential pressure transmitters; 5 patents
- Pressure range
- Static pressure module (0-20) MPa; differential pressure module (0-2000) kPa
- Accuracy
- Pressure Class 0.02 / 0.05; current Class 0.02 / 0.05; 5-digit resolution
- Measure / output signals
- 1 current input (0-22) mA; stability ±5 digits on touchscreen
- Control performance
- Standard points 0/25/50/75/100% auto-return; dwell 10-240 s; 9-point run ≈7 min
- Pressure units
- Differential: kPa; static: kPa or MPa
- Protection
- Over-pressure, over-current & pressure-module fault protection; gas-liquid separator tolerates water/oil in DUT
- Process connection
- M20×1.5 female quick connector; φ4 standard banana jacks; φ6 mm drain port
- Power output
- 220 V/50 Hz; DC 24 V/30 mA loop supply; media: air or transformer oil
- Operating temperature
- -5 ~ 50 °C
- Dimensions
- 300 (H) × 530 (W) × 300 (D) mm
- Weight
- 23 kg
