SMARTSAFE · PROFESSIONAL EQUIPMENT
Know whether the compressor or its drive is at fault.
ECP739 tests electric air-conditioning compressors outside the vehicle. It combines high-voltage drive and low-voltage control with mechanical compression and pressure-hold checks, so a workshop can distinguish electrical communication issues from a compressor that cannot build or retain pressure.
At a glance
Two sides of the diagnosis
Evaluate drive-circuit operation and mechanical pressure performance in one process.
Guided model selection
A database of more than 900 compressor drive records helps select a matching test procedure; coverage changes with software updates.
Traceable result
Watch pressurisation and venting in real time, retain test history and share a PDF report.
Functions in the workshop
Electrical drive test
Supply the selected compressor with 50–750 V DC at up to 20 A and 12/24 V auxiliary power at up to 2 A. CAN, LIN and enable control are listed in the product documentation; the correct harness and procedure depend on the compressor.
Pressure and tightness
The integrated 3 L gas tank supports pressurisation, pressure holding and venting. The test checks whether the compressor builds and retains pressure; equipment pressure is specified up to 12 kgf/cm².
Guided process
The test interface visualises stages, applies a set target and performs stabilisation and release. The device also offers fault-code repair guidance, case references and circuit diagrams when online resources are available.
Wireless operation and records
Wi-Fi and Bluetooth connect to a compatible tablet for remote operation. Historical results can be shared as PDF via QR code, email or Bluetooth, according to the SmartSafe description.
Protection and updates
An adjustable 0–40 A circuit breaker is specified. Online updates keep the compressor data and service guidance current.
Suggested workflow
- Confirm compressor type, applicable test lead and electrical ratings in the vehicle and equipment documentation.
- Connect high-voltage, low-voltage, communication and pressure lines with the system isolated and depressurised.
- Select the matching drive record, run the electrical and pressure stages, then review fault information and pressure history.
- Save the result and compare it with the manufacturer’s diagnostic procedure before deciding on repair or replacement.
Technical specifications
| Parameter | Value |
|---|---|
| Supply | AC 90–264 V · 50/60 Hz |
| Maximum input power | 7 kW, according to the current product sheet |
| High-voltage output | DC 50–750 V · 20 A max |
| Low-voltage output | DC 12/24 V · 2 A |
| Compressor drive | CAN · LIN · enable control |
| Gas tank | 3 L |
| Equipment pressure | 12 kgf/cm² max |
| Communication | Wi-Fi · Bluetooth |
| Circuit protection | Adjustable 0–40 A circuit breaker |
| Operating temperature | −10 to 50 °C |
| Storage temperature | −20 to 70 °C |
| Operating humidity | 20–90% RH |
| Storage humidity | 10–90% RH |
Before ordering and use
High-voltage and pressure tests require trained personnel and the correct leads and safety procedure. The source does not establish a universal vehicle coverage list or the contents of every regional kit; confirm compressor, harness, software and local power supply before ordering.
