1. Introduction
The TOOLTOP ET14S is a portable, multifunctional device combining a high-resolution infrared thermal camera with a true-RMS digital multimeter. Designed for professionals in electrical, HVAC, automotive, and electronics repair, it offers advanced diagnostic capabilities and precise measurements. Its compact design, intuitive interface, and robust features make it an essential tool for identifying faults and ensuring system integrity.
2. Setup
2.1 Package Contents
Before starting, please verify that all items are present in the package:
- 1 x Thermal Camera Multimeter (ET14S)
- 1 x USB Cable
- 1 x English Manual
- 1 x Storage Bag
- 1 x Multimeter probe
- 1 x Macro Lens (for optional versions)
2.2 Battery Installation and Charging
The ET14S uses a detachable 18650 Lithium-ion battery. Ensure the battery is properly installed before first use.
- Open the battery compartment cover on the back of the device.
- Insert the 18650 lithium-ion battery, ensuring correct polarity.
- Close the battery compartment cover securely.
- To charge, connect the device to a power source using the provided Type-C USB cable.
2.3 Macro Lens Installation (Optional)
For detailed PCB circuit board inspection, an optional macro lens can be used.
- The macro lens is designed to be moved left and right during use, not permanently installed.
- Align the macro lens with the thermal camera lens on the back of the device.
- Slide it into position as needed for close-up thermal imaging.
3. Operating Instructions
3.1 Power On/Off
- To power on, press and hold the power key for 3 seconds.
- To power off, press and hold the power key for 3 seconds again.
3.2 Interface and Navigation
The device features a 2.8-inch IPS high-definition LCD screen. Navigation is done via physical buttons.
3.3 Thermal Imaging Functions
- Switching Modes: Short press the 'IR/DMM MENU' button to switch between thermal imaging and multimeter functions.
- Color Palettes: The device supports 5 color palettes (Iron Red, Rainbow, Fusion, White Heat, Red Heat). Use the 'SELECT' button to cycle through them for different visualization needs.
- Temperature Tracking: The ET14S automatically tracks high, low, and center point temperatures.
- Emissivity: Emissivity is adjustable from 0.1 to 0.99 (0.95 by default). Adjust this setting in the menu for accurate readings on different surfaces.
- Alarm Function: The device features sound and light alarm functions for overtemperature conditions. Configure alarm settings in the menu.
3.4 Multimeter Functions
The ET14S is a 9999 counts True RMS multimeter with various measurement capabilities:
- Voltage Measurement: Measure AC/DC voltage up to 1000V (DC) / 750V (AC).
- Current Measurement: Measure AC/DC current up to 10A.
- Resistance: Measure resistance up to 99.99MΩ.
- Capacitance: Measure capacitance up to 99.99mF.
- Diode Test: Test diodes within a 0V to 3V range.
- Continuity Test: Check for circuit continuity with a buzzer indication.
- Frequency & Duty Cycle: Measure frequency and duty cycle (0.1% ~ 99.9%).
- NCV Detection: Non-Contact Voltage detection for safety.
- LIVE Wire Identification: Switch to LIVE mode to distinguish between zero line and live wires.
3.5 Data Management and PC Software
- Data Hold: Use the 'HOLD' button to retain current measurement data.
- Saving Data: Long press the 'HOLD/SAVE' button to save measurement waveform data or thermal images.
- PC Software: Connect the ET14S to a computer via the Type-C USB interface to transfer and analyze thermal images and multimeter voltage measurement results. The PC software allows for data waveform reproduction.
PC Software Download: http://doctuchuang.eirbio.cn/FR02E_EN/IR-DMM.zip
4. Applications
The TOOLTOP ET14S is suitable for a wide range of applications, including:
- Home appliance overhaul
- Circuit board inspection and repair
- Power supply and electronic equipment maintenance
- HVAC system diagnostics (e.g., underfloor heating, central air conditioning)
- Automotive maintenance
- Industrial temperature measurement
5. Maintenance
- Keep the device clean and free from dust and moisture. Use a soft, dry cloth for cleaning.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.
- Store the device in its provided storage bag when not in use to protect it from physical damage.
- Ensure the battery is charged regularly, especially if the device is not used for extended periods, to maintain battery health.
- Software upgrades are supported via USB. Regularly check for updates to ensure optimal performance.
6. Troubleshooting
- Image Blurring with Macro Lens: The macro lens has a working distance of approximately 2.5cm. If the object is further away, the image may become blurred. Use normal thermal imaging mode for objects outside this range.
- Thermal Image Calibration Lag: The thermal imaging detector performs a mechanical control calibration every 10 seconds to ensure accuracy. This may cause a brief lag of 1-2 seconds, which is normal operation and not a malfunction.
- Inaccurate Temperature Readings: Ensure the emissivity setting is correctly adjusted for the material being measured. Different materials have different emissivities.
- Device Not Powering On: Check if the 18650 lithium-ion battery is correctly installed and sufficiently charged.
- Multimeter Readings 'OL': 'OL' (Overload) indicates that the measured value is outside the device's range for the selected function. Switch to a higher range or verify the connection.
7. Specifications
7.1 Thermal Imaging Parameters
| Parameter | Value |
|---|---|
| Image Capture Frequency | 25Hz |
| Thermal Imaging Pixels | ISR 240x240 |
| Field of View | 50.0°(H) × 50°(V) / 72.1°(D) |
| Emissivity | 0.1 – 0.99 adjustable (0.95 by default) |
| Temperature Range | -20℃ ~ +550℃ |
| Gain Mode | Auto Gain |
| Color Palette | Iron Red, Rainbow, Fusion, White Heat, Red Heat |
| Accuracy | ±2℃ or ±2% |
| Measurement Resolution | 0.1℃/0.1℉ |
| Photos Taking and Viewing | Support |
| Macro Lens Working Distance | Approx. 2.5cm (optional) |
7.2 Multimeter Parameters
| Parameter | Value |
|---|---|
| Display Word Count | 9999 counts, Updates 3/sec |
| DC Maximum Input Voltage | 1000V |
| AC Maximum Input Voltage | 750V |
| Maximum Current Measurement | 10A |
| Maximum Resistance | 99.99MΩ |
| Maximum Capacitance | 99.99mF |
| Duty Cycle Test Range | 0.1% ~ 99.9% |
| Diode Test Range | 0V ~ 3V |
| Continuity Test | 999.99Ω |
7.3 Other Equipment Parameters
| Parameter | Value |
|---|---|
| Display Type | 2.8-inch, 240 * 320 resolution |
| USB Interface | Type-C USB |
| Storage Capacity | 7.5MB |
| Image Storage Format | BMP |
| Battery Type | Detachable 18650 Lithium-ion battery |
| Languages | Chinese, English, German |
| Storage Temperature | -20℃ ~ 60℃ (-4℉ ~ 140℉) |
| Operating Temperature | 0℃ ~ 50℃ (32℉ ~ 122℉) |
| Operating Humidity | ＜85%RH (non-condensing) |
| Size | 134 mm * 64mm * 28 mm |
| Host Weight | 180g (including battery) |
| Packaging Weight | 380g |
8. User Tips
- For precise PCB circuit board inspection, consider purchasing the version that includes the macro lens.
- When using the macro lens, ensure the working distance is approximately 2.5cm for clear images. Beyond this, switch to normal thermal imaging.
- Be aware of the 1-2 second lag during thermal imaging calibration, which occurs every 10 seconds for accuracy. This is normal operation.
- Regularly connect your ET14S to a PC to utilize the software for in-depth analysis of thermal images and multimeter data waveforms.
9. Warranty and Support
For any technical assistance, warranty claims, or support inquiries, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific contact details.
