Laboratory Fully Automatic Pressure Calibration Bench

Full-featured Multi-Channel Intelligent Pressure Transmitter Calibration/Determination System Technical Requirements

The fully automatic multi-channel intelligent pressure transmitter calibration/inspection system conforms to the following metrological inspection regulations:

1) JJG882-2004 Pressure Transmitter Calibration Procedure

2) JJG544-2011 Pressure Controller Verification Procedure

3) JJG52-2013 General Pressure Gauge, Pressure-Vacuum Gauge, and Vacuum Gauge Verification Procedure for Elastic Element Type

4) JJG49-2013 Precision Pressure and Vacuum Gauges for Elastic Elements Verification Regulation

5) JJG875-2005 Digital Pressure Gauge Verification Procedure

Fully Automatic Pressure Calibration Specific Technical Solution

1. Working Conditions

 ◆ Ambient Temperature: (5~45)°C

Relative Humidity: <80%RH

 ◆ Frequency: 50 Hz

 ◆ Power Voltage: AC 220V

2. Technical Specifications

2.1 Fully Automatic Hydraulic Pressure Calibration Bench

 ◆ Working Medium: Non-corrosive transformer oil or distilled water after secondary distillation.

 ◆ Available pressure module range: (0～60) MPa. Currently, for inspection, it is only necessary to send the measuring standard instrument to the authorized metrology inspection institution for calibration, without the need to move the entire platform; however, the "Regulation for Calibration of Automatic Standard Pressure Generator" has passed the review at the end of last year, and after its issuance, both built-in and external pressure module automatic pressure calibration benches must send the complete set of equipment to the authorized metrology inspection institution for calibration, as control functions such as overshoot and stability also need to be calibrated.

 ◆ Custom Verification Range: Any value between (0-60) MPa.

 ◆ Measurement Units: Pa, kPa, MPa.

 ◆ Pressure Display Resolution: Touchscreen - 5 digits, Computer Interface - 5 digits.

 ◆ Pressure Accuracy Grade: 0.05; 0.02 grade

 ◆ Current Accuracy Class: 0.02

 ◆ Stable Accuracy: Touchscreen Display ±5 Characters

 ◆ Standard Check Points: At 0%, 25%, 50%, 75%, and 100% of the range, automatic return. Can be set arbitrarily with the computer connection.

 ◆ Custom Inspection Points: At your discretion.

 ◆ Automatic voltage regulation test point time: 20 seconds, adjustable between (10~240) seconds.

 ◆ Transmitter automatic calibration full process time (10 points voltage stabilization): approximately 5 minutes.

  ◆ Safety Protection: Over-voltage, over-current, sensor failure protection, etc.

 ◆ 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 φ6 diameter.

 ◆ Outlet: Inner Diameter: φ6mm.

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

  Dimensions: 290(H) * 574(W) * 316(D) mm

Automatic Calibration Software: Optional.2.2 Features of Automatic Pressure Calibration Bench

Ø Simply press the start button to automatically complete tasks such as pressure increase, decrease, stabilization, data recording, error analysis, and printing calibration reports and certificates.

Fully compliant with pressure gauge calibration regulations, suitable for use as a pressure standard.

Ø Provides a stable pressure source without the use of high-pressure cylinders, with rapid and stable pressure changes.

The pressure range is (-0.1～60) MPa.

Pressure transmitter, pressure switch (pressure controller), and pressure gauge are available for inspection.

Full automatic verification function with pressure switch.

Ø Full protection features include over-pressure protection (alarms if over 110% of the range), over-current protection (when the transmitter current exceeds 20.5mA), leak detection, sensor failure, and more. Stop pressure when over-pressure, over-current, or sensor failure occurs.

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

The system can be connected to an automatic calibration software for an 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 certification documents.

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

3. Features and Advantages of Fully Automatic Pressure Calibration Bench

Built-in pressure module with temperature compensation for the pressure sensor.

Ø The built-in pressure module makes it convenient to use; no additional accessories are needed. Simply install the gauge and press the "Start" button to complete the calibration.

The pressure transmitter is calibrated using an integrated pressure module, ensuring full coverage with no gaps in between.

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

Ø Equipped with a filtration anti-blocking drain system, the hydraulic platform uses φ6mm stainless steel pipe for the inner hole, allowing impurities or dirt from the on-site instruments to be easily drained out. Even if fine sand is placed in the calibration port, it will not damage the setup. The pressure platform is standardly equipped with an air-liquid separator to prevent the liquid in the calibrated instrument from entering the calibration bench.

The intelligent voltage stabilizer is designed in strict accordance with the pressure checking procedure. During the upward stroke, it approaches the checking point from bottom to top, and during the downward stroke, it approaches the checking point from top to bottom, without adjustment.

The operation instructions can be displayed on the touchscreen, eliminating the need for a user manual during use.

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

The hydraulic table can use water as the working medium, while the air table compresses 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 latest inspection regulations.

Ø Features of the Master Station Software:

Software is compatible with the fully automatic pressure calibration bench. The software's advantages include remote operation, optimized calibration process, user-friendly rights management, automatic recording of calibration records with traceability. The software utilizes the BS/CS architecture, offering high flexibility and scalability. Compared to similar end-user operation software, this software implements unified storage and management of calibration data, allowing superior management users to access and review the calibration data of subordinate calibration users at any time. Calibration records can be shared and synchronized, enhancing the efficiency of the using unit.

Product Features

Integrated pressure module

Touchscreen LCD Display

Complete protection features

Equipped with automatic leak detection feature

Transmitter calibration

Pressure Gauge Calibration

Sensor Calibration

Automatic Calibration Management System

Design Concept

Equipped with a filtration and effluent system

Supports water medium

Transformer Oil Support

Intelligent paperless calibration