Automatic Pressure Calibration Bench Technical Requirements

The fully automatic pressure testing system should comply with the following metrological testing regulations:

Fully Automatic Pressure Calibration Specific Technical Solution

1. Working Conditions:

 ◆ Ambient Temperature: (20 ± 1) °C

 ◆ Relative Humidity: Constant temperature room with humidity below 80%

 ◆ Frequency: 50 Hz

 ◆ Power Voltage: AC 220V

2. Technical Specifications

  ◆Working Medium: Non-corrosive, non-polluting air; no external high-pressure gas source required for calibration.

 ◆ The pressure module range available: (-100～2500) kPa. Currently, for inspection, it is only necessary to send the measuring standard instrument to the authorized metrological inspection institution for calibration, without the need to move the entire platform.

 ◆ Customizable verification range: Any value between (-100 to 2500) kPa, vacuum can reach below -100 kPa.

 ◆ The internal pipeline has a larger diameter and is equipped with a gas-liquid separator, so it is not prone to water or oil contamination from the calibration tape.

  ◆ Measurement Unit: kPa.

 ◆ Pressure Display Resolution: Touch Screen - 5 Digits, Computer Connected - 5 Digits.

 ◆ Pressure Accuracy Grade: 0.05 grade; 0.02 grade

 ◆ Current Accuracy Grade: 0.02

 ◆ Stable Accuracy: ±5 characters or less

 ◆ Standard Check Points: At 0%, 25%, 50%, 75%, and 100% of the range, automatic return. Connected to a computer, they can be set arbitrarily.

 ◆ Custom Inspection Points: At any location.

 ◆ Automatic voltage stabilization checking time: 20 seconds, adjustable between (10~240) seconds.

 ◆ Transmitter automatic calibration full process time (9 points voltage stabilization): approximately 5 minutes.

 ◆ Pressure switch calibration time: approximately 2 minutes.

  ◆ Protection: Overvoltage, overcurrent, sensor failure, etc. protections.

 ◆ Current Input: 2 channels, (0 ~ 22) mA.

 ◆ Switch Input: 2-wire dry contacts, capable of detecting contact resistance.

 ◆ Loop Power: 24VDC/30mA, will not damage the meter being tested if incorrectly connected to a standard meter.

 ◆ Pressure Interface: M20x1.5 internal threaded quick connector.

 ◆ Current/Voltage Interface: Standard banana plug with a diameter of 6mm.

 ◆ Outfall: Inner Diameter: φ6mm.

 ◆ Weight: 19kg (pneumatic), 26kg (hydraulic).

  ◆ Dimensions: 290(H) x 574(W) x 316(D) mm

Automatic Calibration Software: Optional.

Technical Specifications:

2.2 Features of Automatic Pressure Calibration Bench

With just one press of the start button, it can automatically complete tasks such as pressurizing, depressurizing, stabilizing pressure, recording data, analyzing errors, and printing calibration reports and certificates.

Compliant with pressure gauge calibration regulations, it can be used as a pressure standard.

Stable pressure source is provided without using high-pressure cylinders, ensuring rapid and stable pressure changes.

Pressure range: (-0.1～60) MPa.

Ø Pressure transmitter, pressure switch (pressure controller), pressure gauge.

Fully automatic verification function with pressure switch.

Complete protection features include over-voltage protection (with an alarm if exceeding 110% of the range), over-current protection (when the transmitter current exceeds 20.5mA), leak detection, and sensor failure alerts. Pressure is stopped upon over-voltage, over-current, or sensor failure.

The fully automatic pressure calibration bench can store 20 sets of calibration results before and after adjustment for 56 field instruments.

The system can be connected to an automatic calibration software to form a fully automatic pressure calibration system. Units can be freely set, and pressure calibration can be completed with just a few clicks. It automatically generates calibration reports and certificates.

Equipped with a printer and computer, compatible with the equipment.

3. Features and Advantages of Full-Automatic Pressure Calibration Bench

Ø Integrated pressure module with temperature compensation for pressure sensors, overcoming temperature drift; no measurement errors in winter or summer. Convenient for calibration without any additional accessories.

The built-in pressure module ensures convenience, as no additional accessories are needed. Simply install the gauge and press the "Start" button to complete the calibration process.

The pressure transmitter is calibrated using an integrated pressure module, ensuring full coverage without any gaps.

Full automatic verification, capable of simultaneously calibrating two pressure transmitters, pressure switches, and pressure gauges of the same range, convenient for calibrating dual-point pressure switches.

The system features a filter anti-blocking drainage system. The hydraulic stand is made of φ6mm stainless steel pipe, allowing impurities or dirt brought by the on-site instruments to be conveniently drained through the drainage port. Even if fine sand is placed in the calibration port, it will not damage the setup. The air pressure stand comes with a standard gas-liquid separator to prevent the liquid in the instrument being calibrated from entering the calibration stand.

Ø Equipped with an intelligent voltage stabilizer, designed in full compliance with the pressure testing procedures. During the upward stroke, it approaches the testing point from bottom to top, and during the downward stroke, it approaches the testing point from top to bottom without adjustment.

Ø Operation instructions can be displayed on the touch screen, eliminating the need for a user manual during use.

High protection level, preventing the flow of verification medium into the instrument to avoid damage to the instrument.

The hydraulic platform can use water as the working medium, while the pneumatic platform uses compressed air.

Data is traceable. As long as the device ID matches the previous inspection, the database can trace back to the previous inspection records and automatically complete the inspection forms based on user needs.

All inspection processes comply with the inspection regulations.

Ø Terminal software features:

The software is designed for use with the fully automatic pressure calibration station, offering advantages such as remote operation, optimized calibration processes, user-friendly rights management, automatic recording and traceability of calibration records. The software employs a BS/CS architecture, featuring high flexibility and scalability. Compared to similar client-side operation software, this software implements a unified storage and management system for calibration data, allowing senior management users to access and review the calibration data of subordinate users at any time. Calibration records can be shared and synchronized, enhancing the work efficiency of the using units.

Product Features

Built-in pressure module

Touchscreen LCD Display

Complete protection features

Equipped with automatic leak detection function

Transmitter calibration

Pressure Gauge Calibration

Sensor Calibration

Automatic Verification Management System

Design Concept

Features a filtration and effluent treatment system

Supports water medium

Transformer Oil Support

Smart paperless calibration