Valve tester V2 - OS.111 - Professional Testing Device for Diesel Injector Control Solenoid Valves
The Valve Tester V2 – OS.111 is a precision electromagnetic diesel injector tester designed for measuring electrical parameters of control solenoid valves in diesel fuel injection systems. Specifically, this professional-grade testing equipment supports all types of electrically controlled injectors, including Common Rail, UIS (Unit Injector System), and HEUI (Hydraulic Electronic Unit Injector) systems from any manufacturer.
Consequently, workshop technicians and diesel repair specialists worldwide rely on this electromagnetic diesel injector tester to ensure uniform fuel delivery across all engine cylinders. The device provides accurate measurements of critical solenoid parameters that directly affect engine smoothness, fuel efficiency, and emissions performance. Moreover, by identifying variations between cylinders, technicians can tune solenoid valves to achieve identical operating characteristics, thereby eliminating rough idle, vibration, and uneven fuel consumption.
Comprehensive Diesel Injector Diagnostic Capabilities
The Valve Tester V2 – OS.111 stands out for its comprehensive diagnostic capabilities, supporting over 18 different injector types including Bosch, Denso, Delphi, and Cummins systems. Furthermore, the intuitive front-panel controls and clear LCD display make operation straightforward. At the same time, advanced features like detailed view mode and PWM control provide experienced technicians with sophisticated diagnostic capabilities.
Critical Engine Performance Factors
In particular, the Valve Tester enables precise tuning of control solenoids to ensure identical operation across all engine cylinders. This uniformity is critical because the operating parameters of control solenoid valves represent one of three fundamental factors—along with hydraulic metering device characteristics and cylinder compression values—that directly determine fuel delivery consistency and engine rotation smoothness.
Key Measurement Capabilities of the Electromagnetic Diesel Injector Tester
Valve tester V2 – OS.111 provides six essential electrical measurements for complete solenoid valve diagnostics:
Operating Current Measurement – Accurately measures the electrical current flowing through the solenoid during operation. Consequently, this measurement identifies valves with excessive or insufficient current draw that could indicate internal resistance problems, coil degradation, or mechanical binding.
Tripping Current Measurement – Determines the precise current threshold at which the solenoid valve actuates. Importantly, this critical parameter affects injection timing and must be consistent across all cylinders for smooth engine operation.
Mechanical and Structural Measurements
Air Gap Measurement (Indirect) – Provides indirect measurement of the air gap in the solenoid valve mechanism. Specifically, air gap variations between cylinders indicate mechanical wear, debris accumulation, improper assembly, or valve seat damage. To address this, the device’s “tapping” function helps eliminate gaps during solenoid valve adjustment.
Electromagnetic Solenoid Testing Properties
Inductance Measurement – Tests the electromagnetic inductance of the solenoid coil, which directly affects valve opening and closing speed. As a result, inductance variations between cylinders cause timing differences in fuel injection, ultimately resulting in uneven engine operation and increased emissions.
Active Resistance Measurement – Measures the DC resistance of the solenoid winding. In turn, this measurement identifies short circuits, open circuits, winding degradation, or connection problems that affect solenoid performance and reliability.
Diesel Injector Safety and Insulation Testing
Insulation Resistance Measurement (V2 Version) – Verifies the electrical insulation between the solenoid winding and the injector body, thereby preventing current leakage that could cause injector malfunction, control unit damage, or safety hazards. Furthermore, the V2 version includes advanced insulation testing with adjustable current and warm-up time for comprehensive insulation diagnostics.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | OS.111 |
| Power Supply Voltage | 220V AC ± 15%, 50 Hz |
| Power Consumption | Maximum 350W |
| Weight | 4.5 kg (9.9 lbs) |
| Dimensions (L × W × H) | 240 × 287 × 70 mm |
| Display Type | LCD with backlight |
| Control Interface | Rotary knob and membrane buttons |
| Front Panel Controls | MENU/CANCEL, UP, DOWN, START/STOP, POWER, Rotary knob |
| Connections | X17 injector connector (front), USB port (rear), Power input (rear) |
| Fuse Protection | 5A fuse (integrated with power connector) |
| Operating Temperature | +5°C to +40°C |
| Storage Temperature | -20°C to +60°C |
| Operating Humidity | 8% to 80% (non-condensing) |
| Storage Humidity | 5% to 95% (non-condensing) |
| Maximum Air Dustiness | 75 μg/m³ |
| Firmware Updates | USB connection to PC |
| Safety Requirements | Grounded AC power required |
| Warranty Period | 24 months from date of purchase |
