Product Overview

The APSL503 Intelligent Pressure Controller (also called an Automatic Standard Pressure Generator) is a patented product available in an air-pressure (pneumatic) version and an ultra-high-pressure (hydraulic) version.

The air-pressure version consists of a controller main unit and a device-under-test mounting seat holding up to three gauges (the middle port takes only clean liquid-free gauges, the left and right ports accept liquid-filled gauges via a patented gas-liquid separator); its working medium is air with a built-in pressure module of (-100 ~ 7000) kPa, an external gas source of +7000 kPa / -100 kPa, 6-digit pressure resolution, gauge/absolute pressure measurement, accuracy Class 0.01 / 0.02 / 0.05, control stability 3 digits, target-pressure hold 2 min, control response ≤30 s, auto-stabilization time 15 s (adjustable 10-240 s, full 9-point transmitter run ≈4 min), vacuum below -100 kPa and micro-pressure verification of ±500 Pa transmitters; it works with the APSL801 pneumatic fully-automatic piston gauge (controlling weight raising/lowering and vacuum-pump start/stop) or as a standalone pressure standard, and can integrate a HART function that replaces a HART communicator (setting/calibrating transmitter range, forcing output current to fixed values such as 20/12/4 mA, linear or square-root functions, and HART zeroing).

Its many patents include 201720241593.X, 201420689202.7, 20150021958.4, 201220302065.8, 201220302053.5, 201220302062.4, 201220327679.1 and 201230276258.6.

It weighs 19 kg with dimensions 200 (H) × 400 (D) × 500 (W) mm, current input (1-2) channels (0-22) mA, DC 24 V/30 mA loop supply (mis-connection will not damage a standard gauge), M20×1.5 female quick connectors, φ4 banana jacks, φ6 mm drain port, working environment -5 °C to 50 °C, with optional automatic verification software (connectable to TMMS-2000 for auto data recording and report printing) and optional external standard gauge.

1. Overview

The ultra-high-pressure (hydraulic) version is a new-generation pressure controller with accuracy up to 0.02% of reading (2 parts in 10,000). It can independently verify general pressure gauges, precision pressure gauges, pressure transmitters, pressure regulating valves, pressure switches and digital pressure gauges, and can also be connected to a fully automatic or manual piston (dead-weight) gauge, where accuracy reaches 0.005% (5 parts in 100,000).

2. Operating Conditions

Ambient temperature: 20 °C ± 5 °C.

Relative humidity: (20~70)%RH.

Power supply: AC 220V/50Hz.

3. Technical Parameters

Pressure measuring range: (0～250) MPa, (0～160) MPa, (0～100) MPa;

Accuracy:

Pressure: Class 0.02, Class 0.05.

Current: (0～22)mA, Class 0.02.

Voltage: (0～5.5)V, Class 0.02.

Automatic pressure generation range: (0～250) MPa. It can precisely control pressure with infinitely adjustable pressure rising speed.

User-defined calibration range: Any value within (0～250)MPa.

Working medium: liquid; equipped with a (0-1.0) MPa gas boosting unit, which meets the demands of the (0-250) MPa high-pressure controller and supports switchover without disassembly.

Pressure output ports: Supports connection of 2~4 pieces of devices under test with M20×1.5 interface.

Features fast pressure stabilization and high control precision, pressure stabilizes within 10 s.

Adopts food-grade stainless steel together with military-grade sealing technology, featuring rust resistance, corrosion resistance and ultra-long service life.

Built-in patented filtering/blow-down valve device (Patent No. 201720241592.5), eliminating regular pipeline cleaning and facilitating maintenance.

4. Function Features

The product design fully complies with JJG544-2011 《Pressure Controllers》; JJG52-2013 《Elastic-element General Pressure Gauges, Pressure Vacuum Gauges and Vacuum Gauges》; JJG49-2013 《Elastic-element Precision Pressure Gauges and Vacuum Gauges》; JJG882-2019 《Pressure Transmitters》; JJG875-2019 《Digital Pressure Gauges》 national verification regulations;

Function: It can fully automatically calibrate general pressure gauges, precision pressure gauges, pressure transmitters, pressure regulating valves, pressure switches, digital pressure gauges and other pressure instruments.