1. Introduction
The Inficon TEK-Mate Refrigerant Leak Detector, Model 705-202-G1, is designed for reliable detection of refrigerant leaks in HVAC/R systems. This device offers straightforward operation and utilizes a proven heated diode sensor for accurate performance.
Image 1: The Inficon TEK-Mate Refrigerant Leak Detector.
2. Key Features
- High Sensitivity: Detects leaks as small as 0.25 oz./year (7 g/year).
- Broad Refrigerant Compatibility: Detects all CFCs, HCFCs, HFCs, and HFOs, including A2L certified refrigerants like R32 and R454B.
- Heated Diode Sensor: Utilizes a proven heated diode sensor technology for reliable leak checking and reduced false alarms.
- Automatic Background Adjustment: Features automatic zeroing to adapt to changing background contaminant levels.
- Audible Alarm: Provides an audible alarm to indicate leak detection.
- Battery Powered: Operates on two D-cell alkaline batteries.
- Durable Design: Includes a rugged carrying case for protection and transport.
Image 2: Overview of the TEK-Mate's primary features.
3. Included Components
The Inficon TEK-Mate Refrigerant Leak Detector package typically includes:
- TEK-Mate Leak Detector unit with 15-inch probe
- Heated Diode Sensor (pre-installed or spare)
- D-Size alkaline batteries (typically two)
- Spare filters
- Rugged carrying case
Image 3: Contents of the Inficon TEK-Mate package, including the detector, case, batteries, and filters.
4. Setup
4.1 Battery Installation
The TEK-Mate requires two D-cell alkaline batteries for operation. To install or replace batteries:
- Locate the battery cover on the handle of the unit.
- Open the battery cover.
- Insert two D-cell batteries, ensuring correct polarity.
- Close the battery cover securely.
4.2 Probe and Filter Assembly
The flexible probe includes a tip with a filter. Ensure the filter is clean and properly seated before use.
Image 4: Diagram showing the power button, sensitivity indicators, battery cover, and probe tip/filter.
5. Operation
5.1 Powering On/Off
Press the power button (marked with a circle and vertical line) to turn the unit on or off. The unit will perform a brief warm-up sequence upon activation.
5.2 Sensitivity Settings
The TEK-Mate features two sensitivity settings: High and Low. These can be selected using the multi-function button. The corresponding indicator light (HIGH or LOW) will illuminate to show the active setting.
5.3 Leak Detection Procedure
- Turn on the TEK-Mate and allow it to complete its warm-up cycle.
- Select the desired sensitivity setting (High for general scanning, Low for pinpointing large leaks).
- Slowly move the probe tip along the suspected leak area. The flexible probe allows access to confined spaces.
- Listen for the audible alarm and observe the visual indicators. An increase in alarm frequency or intensity indicates the presence of a leak.
- Once a leak is detected, move the probe away from the area to allow the unit to clear, then re-approach to pinpoint the exact source.
5.4 Operational Demonstration
Video 1: A demonstration of the Inficon TEK-Mate Refrigerant Leak Detector, showing its components and basic operation. This video highlights the probe, filter, and sensor, and mentions the use of D-cell batteries.
Video 2: A user demonstrating the TEK-Mate, explaining the function of the filters, the high and low sensitivity settings, and the battery requirements. The video shows the device being turned on and the different alarm sounds for sensitivity levels.
Video 3: A brief preview demonstrating the Inficon TEK-Mate being powered on and showing the visual indicators for its operational status and sensitivity settings.
6. Maintenance
6.1 Sensor Replacement
The heated diode sensor has an approximate lifespan of 100 hours of operation and is field-replaceable. To replace the sensor:
- Ensure the unit is powered off.
- Locate the sensor cover (often a blue button or cap) on the top of the unit.
- Carefully remove the sensor cover.
- Gently pull out the old sensor.
- Insert the new sensor, ensuring it is properly seated.
- Replace the sensor cover.
Image 5: Close-up view of the field-replaceable heated diode sensor.
6.2 Filter Replacement
The probe tip contains a filter that can become dirty or clogged over time. Regular replacement of the filter is crucial for optimal performance and to prevent false alarms. Replace the filter when it appears dirty or if the unit exhibits erratic behavior.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Continuous alarm or erratic readings | Dirty or clogged filter; contaminated sensor; low batteries. | Replace the probe filter. Clean or replace the sensor. Replace D-cell batteries. |
| Unit does not power on | Dead or incorrectly installed batteries. | Check battery polarity and replace with fresh D-cell batteries. |
| No detection of known leaks | Sensor lifespan exceeded; incorrect sensitivity setting. | Replace the sensor. Ensure the unit is on the appropriate sensitivity setting (High for small leaks). |
8. Specifications
| Specification | Value |
|---|---|
| Model Number | 705-202-G1 |
| Sensitivity | 0.25 oz./year (7 g/year) |
| Detects Refrigerants | CFCs, HCFCs, HFCs, HFOs (A2L Certified) |
| Sensor Type | Heated diode |
| Sensor Life | 100 hours |
| Power Source | 2 x D-cell alkaline batteries |
| Average Battery Life | 8 hours |
| Alarm | Audible |
| Product Dimensions | 4"D x 4"W x 12"H |
| Item Weight | 3.1 Pounds |
| Temperature Range | 0°C to 50°C |
9. Warranty and Support
9.1 Warranty Information
The Inficon TEK-Mate Refrigerant Leak Detector comes with a Two-Year Replacement Warranty. Please refer to the warranty card included with your product for full terms and conditions.
9.2 Technical Support
US-based technical support is available via email and phone for any operational questions or assistance with your device.
Image 6: Information regarding the 2-year warranty and US technical support.
