Huntron Access DH2 | Dual-Head Flying Probe System
Two probe heads move independently to selected test points. This removes manual repositioning during troubleshooting, low-volume testing, and repair.
- ✓ 2 probes
- ✓ PCB size up to 48.3 cm x 30.5 cm
- ✓ Accuracy ±0.4 micrometers
Dual-Head Flying Probe System for Printed Circuit Boards
With the Huntron Access DH2, two probe heads move automatically to freely selected test points on a printed circuit board assembly. This eliminates manual probe positioning during development, low-volume production, and repair. The integrated Huntron Tracker measures analog signatures on unpowered assemblies. A suitable external test instrument can be connected for other electrical measurements.
Huntron Access DH2: Targeting Two Test Points
The probe heads contact traces, pads, or component leads. This allows the user to check connections for opens and shorts and identify deviations from reference signatures. The DH2 is internally wired for 4-wire Kelvin measurements of trace and contact resistance. The optional 4-wire test kit and a compatible measuring instrument are also required.
Teaching Test Points Using the Camera Image
Each Z-axis is equipped with an autofocus color camera. The operator marks the required test point in the camera image, and the software stores the corresponding XY coordinates. Linear encoders on the X, Y, and Z axes report the actual axis positions. The controller uses these values to correct probe position deviations. The minimum XY step size is 0.4 µm. Over a travel distance of 254 mm, the XY movement accuracy is 20 µm.
Test Area and Test Station Integration
Together, both probe heads cover an area of 48.3 × 30.5 cm. The system accommodates assemblies up to 68.6 × 58 cm with component heights of up to 12.2 cm. The PC connects via USB 3.1. The floor-standing cabinet provides 19-inch rack space for additional test instruments. The Tracker supplies analog signatures, while other measurement values come from the connected instrument.
Alternative Products
If a single probe head is sufficient for the test task, the Huntron Access 2 USB Prober is an alternative for automated probing of medium to large printed circuit board assemblies. For repeatable RF near-field measurements using a spectrum analyzer and near-field probe, consider the Huntron Access RF Prober.
Related Product Categories
Probers and Trackers | Digital Multimeters | LCR Meters
Is the Access DH2 Right for Your PCB Test?
We will verify whether the dual probe heads, test area, and measurement method fit your PCB, and identify the instruments or Kelvin options required for your planned test sequence.
Specifications
| System type | Dual-Head Flying Probe System |
|---|---|
| Number of probe heads | 2 |
| Shared test area | 48.3 × 30.5 cm |
| Maximum assembly size | 68.6 × 58 cm |
| Maximum component height | 12.2 cm |
| Maximum Z-axis travel | 15.24 cm |
| Minimum XY step size | 0.4 µm |
| XY motion accuracy | 20 µm over 254 mm travel |
| Vision system | 2 autofocus color cameras with ring lights |
| PC interface | USB 3.1 |
| Instrument mounting | 19-inch rack space in the floor-standing cabinet |
| Integrated power distribution | PDU with mains and emergency-stop control |
| Weight | 287 kg |
| Approvals | CE and ETL |
| Installation conditions | Overvoltage Category II, Pollution Degree 2 |
Options & Accessories
| 98-0755 | 4-wire test kit for Keysight digital multimeters; compatible measuring instrument required separately |
|---|---|
| 98-0767 |
|
| 98-0793 | 4-wire test kit for the Keysight E4980AL; LCR meter required separately |
| Huntron Workstation Remote Control | optional interface for controlling Huntron Workstation from custom software; availability upon request |
| Huntron Hardware SDK | optional development kit for direct control of the prober and supported Huntron Trackers; availability upon request |
| Huntron Workstation SDK | optional development kit for integrating external test instruments into Huntron Workstation; availability upon request |
Scope of Delivery
| 99-0436 | Huntron Access DH2 base system with 2 probe heads, integrated Huntron Tracker, and 2 autofocus cameras |
|---|---|
| Rack-mounted PC | supplied in the current manufacturer configuration |
| 98-0581 | LCD monitor |
| 98-0705 | Monitor arm |
| Input devices | Keyboard and mouse |
| 06-5228 | Huntron Workstation software |
| 98-0249 | MP20 microprobes |
| 98-0043 | 4 common leads |
| 98-0227 | Common lead with ferrite bead |
| 98-0722 | Power cord |
| 98-0750 | Slot Level Block |
| 98-0452 | Tool kit |
| 98-0723 | Rotating PCB holder set |
| 98-0718 | Probe kit |
| 98-0693 | Video microscope |
Applications
| Point-to-point testing of printed circuit board assemblies |
| Development and design |
| Low-volume PCB testing |
| Manufacturing |
| Service, repair, and fault diagnosis |
Videos
Links & Downloads
Available Documents (Subject to Change)
Supplier
Founded in 1976, Huntron is a supplier of tools for engineers and technicians to test, diagnose and repair assembled printed circuit boards. Huntron is based in Mill Creek, Washington and manufactures the popular Huntron Tracker, Huntron Workstation software and robotic probers.
