Helium Leak Tester MD-Hld-542

1. Brief Introduction

The MD-HLD-542 Helium Mass Spectrometer Leak Detector is an advanced automatic system designed for precise and efficient leak detection. It integrates a molecular pump, mass spectrometry chamber, combined valve, mechanical pump, and control panel to provide a complete solution for industrial applications.

2. Features

1. Convenient Operation
One-button operation for leak detection and deflation;
Full-scale calibration from 5×10⁻¹² to 1 Pa·m³/s, covering 12 magnitudes in one go;
Quick start within 2 minutes;
Loop detection supported.

2. Reliable Performance
Capable of 5×10⁵ loop leak detections;
Two regional complex operation panels with 4 levels of user authority.
3. Powerful Functionality
Three types of leak detection: Normal, Gross, and Sniffer;
Optional sensitivity up to 12 magnitudes.
4. Advanced Technology
Multiple measurement units including mbar·l/s, Pa·m³/s, and Torr·l/s;
Strong communication capabilities via RS232 and multiple communication parameters.

3. Working Principle
3.1 Pneumatic Schematic


1 Amplifier VA1 Release Valve
2 Mass Spectrometer VR1 & VR2 Gross Detecting Valve
3 Leak Detection Port
5 Leak Detection Port Pirani
7 Vent VT2 & VT3
8 Suction Mouth VS
15 Preamp Pump
18 Molecular Pump

4. Operation Panel


1 Leak Detection Port Pressure Indicator
2 Control Menu Indicator Light
3 Automatic Calibration Start/Stop
4 Suction Leak Detection Start/Stop
5 Floating Function On/Off
6 Leak Detection Start/Stop
7 Control Key (4)
8 Standby Indicator Light
9 Exhaust Indicator Light
10 Leak Detection Indicator Light
11 He Signal Analog Output Display
12 He Signal Analog Output Indicator Light
13 Floating Indicator Light
14 Correction Coefficients Start Indicator Light
15 Units Indicator
16 He Signal Display
17 LCD Display
18 Parameter Key
19 Modify Key (4)
20 Next Key
21 & 22 Parameter Increment, Decrement, Option, Alarm
23 Preamp Parameter Key
24 Menu Option Key (4)
25 Alarm Setting
26 Mass Spectrometer Parameter
27 Maintenance Parameter
28 Other Parameters

5. Specification

Working method: 180° magnetic deflection mass spectrometer with automatic protection
Filament: double tungsten filament
Gross pump speed: 10 m³/h
Emission current range: 0.2–2 mA
Alarm sound: 90 dB
Start time: <2 minutes
Supply: AC 200–240 V
Frequency: 50 Hz
Power: <1 kW
Operating temperature: 0–45°C
Storage temperature: -25–70°C
Weight: 65 kg

6. Accessories:

For more product types, please visit our showroom at:
minder-hightech.made-in-china.com

----------------------------------------------------------------------------------------------------------------------------------------

Guangzhou Minder-Hightech Co., Ltd.

Contact: Shunyu Hu

Mobile: +86-15813334038