7Inch Color Touch Screen Helium Leak Detector for PCBs Leak Detection

Price Negotiable

Price: Negotiate

MOQ: 1 Unit

Delivery Time: 35 days

Brand: Wayeal

Product Description

Technical Data of SFJ-231 Helium Leak Detector

Product Name	Helium Leak Detector SFJ-231
Diamension	645678965mm
Operating temperature	0~40°C
Detectable Quality	2, 3, 4 (H2, He3, He4)
User Interface	7inch Color Touch Screen
Detection Method	Helium Leak Detection
Mini Leak Detection Rate(Pa.m3/s)/Vaccum Mode	5*10-13 Pa·m3/s
Communication Interface	RS232/485, USB*2
Max Allowable Leak Detection Pressure (Pa)	1500
Ion Source	2pcs, Iridium Coated Yttrium Oxide, Automatic Switching
Mini Leak Detection Rate(Pa.m3/s)/Sniffer Mode	5*10-9 Pa·m3/s
Start Time	2min
Leak Detection Port	DN25KF
Power	AC220V, 50Hz/60Hz
Language	Chinese/English

Helium Leak Testing for PCB Sealed Chamer (Vacuum Mode)

This method is designed for circuit boards with independent sealed cavities, such as those integrating pressure sensors or MEMS components.

1. Preparation

Verify the PCB assembly is complete and free of mechanical damage.
Clean the cavity surface to remove oil and dust that could interfere with testing. Connect the cavity's vent port to the SFJ-231 helium leak detector using a DN25KF adapter, ensuring leak-free piping (pre-check with helium if necessary).
Power on the detector with AC220V, 50Hz/60Hz supply, allow ≤2 minutes for startup, then select "Vacuum Mode" via the touchscreen and set the leak rate threshold according to design specifications.

2. Cavity Evacuation

Activate the built-in or external vacuum pump to evacuate the cavity to a base pressure (typically ≤10Pa, adjusted for cavity volume and material) to eliminate residual air interference.

3. Helium Tracer & Leak Detection

Apply trace helium (He⁴) externally along seams (e.g., lid-substrate interface) or internally via dedicated channels. Monitor the detector's display in real-time using numerical, bar, or curve graphs. If the leak rate exceeds the set threshold (e.g., 5.0×10⁻¹² Pa・m³/s, adjustable to product standards), record the leak rate and cavity ID.

4. Data Recording & Analysis

Export test data via USB to generate leak reports and upload to production management systems (e.g., MES) via RS232/485 interfaces for quality traceability.