1. Introduction
The TOOLTOP TH202 is a versatile 4-in-1 handheld device integrating a professional thermal imager, a dual-channel oscilloscope, a 20,000-count True-RMS multimeter, and a signal generator. Designed for a wide range of applications, from PCB inspection to automotive electrical diagnostics, this instrument provides comprehensive measurement and analysis capabilities in a compact form factor.
2. Safety Information
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always inspect the device and accessories for any damage before use. Do not use if damaged.
- Ensure proper connections are made before applying power or taking measurements.
- Do not exceed the maximum input ratings for any function.
- Use caution when working with live circuits.
- Keep the device dry and clean.
- Do not attempt to open or modify the device. Refer all servicing to qualified personnel.
3. Package Contents
Verify that all items listed below are included in your package:
- 1 x TOOLTOP TH202 Thermal Imager Oscilloscope Multimeter
- 2 x Oscilloscope Probes
- 1 x One Pair Test Leads (Dual-color)
- 1 x BNC to Alligator Clip Cable (Signal Output Cable)
- 1 x USB Cable
- 1 x EVA Bag
- 1 x English User Manual
4. Device Overview
The TH202 features a robust design with a 3.2-inch TFT color screen and intuitive controls. Key components include:
- Display: 3.2-inch TFT color screen with 320x240 resolution.
- Control Buttons: Navigation, mode selection (IR, DMM, OSC, AWG), save, menu, and power buttons.
- Input/Output Ports: BNC connectors for oscilloscope and signal generator, multimeter input jacks (10A, COM, VΩCap).
- Thermal Camera Lens: Located on the back, with a convertible macro lens for close-up inspections.
- USB Port: For charging and data transfer.
5. Setup and Initial Use
5.1 Charging the Battery
The device is powered by a 3000mAh rechargeable lithium battery. Connect the included USB cable to the device's USB port and a DC5V/2A power adapter (not included) to charge. The battery indicator on the screen will show charging status.
5.2 Powering On/Off
Press and hold the red power button to turn the device ON or OFF.
5.3 Macro Lens Usage
The TH202 includes a convertible macro lens pre-installed for close-range PCB inspection (approximately 3 cm). For measurements beyond this distance, ensure the macro lens is disengaged or use normal thermal imaging mode to avoid blurred images.
6. Operating Modes
The TH202 features four primary operating modes, accessible via dedicated buttons on the front panel: IR (Thermal Imager), DMM (Multimeter), OSC (Oscilloscope), and AWG (Signal Generator).
6.1 Thermal Imager (IR) Mode
Press the IR button to enter thermal imaging mode. This mode utilizes a 256x192 resolution, 25Hz thermal imaging sensor to visualize temperature distributions.
- Palettes: The device offers 15 pseudo-color display options (e.g., White Hot, Black Hot, Fusion, Iron, Deep Blue, Lava, Rain, Green, Red Hot, Deep Purple) to suit different inspection needs. Navigate through palettes using the arrow keys.
- Image Modes: Supports various image modes for different viewing preferences.
- Temperature Measurement: Displays global maximum, center region maximum/minimum, center point temperature, and temperature change curve. High/Low temperature alarms can be configured.
- Photo/Video Recording: Capture thermal images (JPG) and videos (AVI) for analysis. Use the SAVE button to store data.
6.2 Oscilloscope (OSC) Mode
Press the OSC button to enter oscilloscope mode. This device features a dual-channel oscilloscope with an 80MHz analog bandwidth (single channel) or 40MHz (dual channel) and a 200MSa/s sampling rate.
- Connecting Probes: Connect oscilloscope probes to the BNC connectors at the top of the device.
- Waveform Display: Observe real-time waveforms. Use navigation buttons to adjust time base, vertical sensitivity, and other parameters.
- Automatic Adjustment: The device supports fast auto-adjustment for clear signal display.
- Measurement Parameters: Displays 12 customizable waveform parameters including Vp-p, Vmax, Vmin, Vavg, Vrms, Freq, Period, +Width, -Width, +Duty, -Duty.
- Storage: Stores up to 2,000 waveform records.
6.3 Multimeter (DMM) Mode
Press the DMM button to enter multimeter mode. This is a 20,000-count True-RMS multimeter.
- Connecting Test Leads: Connect the dual-color test leads to the appropriate input jacks (COM, VΩCap, 10A).
- Measurement Functions: Supports DC/AC voltage, DC/AC current, resistance, capacitance, frequency, duty cycle, diode test, and continuity test.
- Auto Ranging: The device automatically selects the appropriate range for measurements.
- Data Display: Real-time measurement data, maximum/minimum values, data hold, and relative value measurements are displayed.
- Storage: Stores up to 2,000 multimeter data sets.
6.4 Signal Generator (AWG) Mode
Press the AWG button to enter signal generator mode. This mode allows you to output various waveforms.
- Connecting Output Cable: Connect the BNC to Alligator Clip Cable to the 'Gen Out' BNC connector.
- Waveform Selection: Generate Sine Wave (10Hz-100kHz), Triangle Wave (10Hz-100kHz), and Square Wave (10Hz-4MHz).
- Duty Cycle: For Square Wave, the duty cycle is adjustable from 10%-90% in 10% increments.
- Output Voltage: The output voltage is 3Vpp (peak-to-peak) with an approximate 50Ω output impedance.
7. Troubleshooting
- Thermal Image Non-Uniformity/Lag: The thermal imaging detector includes a mechanical control calibration plate. It calibrates every 10 seconds to ensure accurate measurements, which may cause a brief 1-2 second lag. This is normal operation.
- Blurred Thermal Images: If thermal images appear blurred, especially for objects further away, ensure the macro lens is not engaged. The macro lens is designed for close-range PCB inspection (approx. 3 cm).
- Device Beeping: To mute the device, select either the OSC or DMM mode, then press the MENU key. Navigate to the "Beep" function and turn it off.
8. Specifications
| Category | Parameter | Value |
|---|---|---|
| General Specifications | ||
| Display | Resolution; Size | 320x240; 3.2-inch TFT color screen |
| Backlight Brightness | Levels | 1-8 levels adjustable |
| Battery | Type; Capacity | 3000mAh rechargeable lithium battery |
| Operating Time | Approximate | About 5 hours |
| Operating Environment | Temperature; Humidity | 0℃~+40℃; <75%RH |
| Overall Dimensions | L x W x H | 173mm x 89mm x 38mm |
| Weight | Excluding accessories | 296g (0.65 lb) |
| Auto Power-off | Setting | 5min-60min or disabled |
| Power | Input | DC5V/2A (charger not Included) |
| Storage Capacity | DMM; OSC | DMM: 2000 records; OSC: 2000 waveforms |
| Storage Environment | Temperature; Humidity | -10℃~+60℃; <90%RH |
| Thermal Imaging Features | ||
| Sensor Type | VOx (Vanadium Oxide) | |
| Thermal Resolution | 256x192 | |
| Image Capture Rate | 25Hz | |
| Temperature Range | -20°C~+550°C | |
| Measurement Accuracy | ±2°C or ±2% | |
| Emissivity | 0.01~0.99 | |
| Palette | White Hot, Black Hot, Fusion1, Fusion 2, Iron 1, Iron 2, Deep Blue, Color 1, Color 2, Lava, Rain, Green, Red Hot, Deep Purple | |
| Field of View (FOV) | 50.0°(H)x37.2°(V) | |
| Focus | 3.5mm (fixed, non-adjustable) | |
| Measurement Points | 5 (center, highest, lowest, area max, area min) | |
| Image Format | JPG (photo), AVI (video) | |
| Storage Capacity | TF card | |
| Oscilloscope Features | ||
| Analog Bandwidth | 80MHz (Single Channel), 40MHz (Dual Channel) | |
| Maximum Sampling Rate | 200MSa/s | |
| Channels | 2 | |
| Storage Depth | 2K | |
| Vertical Resolution | 8 bits | |
| Coupling Mode | DC, AC | |
| Input Impedance | Approx. 1MΩ | |
| Trigger Mode | Auto, Normal, Single | |
| Trigger Edge Selection | Rising / Falling edge | |
| Vertical Sensitivity Range | 10mV/div - 10V/div | |
| Vertical Accuracy | ±(5% + 0.2div) | |
| Voltage Measurement Parameters | Vp-p, Vp, Vmax, Vmin, Vavg, Vrms | |
| Time Measurement Parameters | Freq, Period, +Width, -Width, +Duty, -Duty | |
| Non-Linearity | ±1 bit | |
| Attenuation | Vertical ±4.0, Horizontal ±6.0 | |
| Time Base Range | 6ns/div - 50s/div (adjustable in 1-2-5 steps) | |
| Horizontal Accuracy | ±(0.01% + 0.1div) | |
| Automatic Measurement Accuracy | ±(5% + 0.2div) | |
| Multimeter Parameters | ||
| Display | Counts | 20000 Counts |
| DMM Measurement Speed | 3 times/second | |
| DC Voltage | Range | 200.00mV / 2.0000V / 20.000V / 200.00V / 1000.0V |
| AC Voltage (True RMS) | Range | 200.00mV / 2.0000V / 20.000V / 200.00V / 750.0V |
| DC Current | Range | 2000.0mA / 10.000A |
| AC Current (True RMS) | Range | 2000.0mA / 10.000A |
| Resistance | Range | 200.00Ω / 2.0000kΩ / 20.000kΩ / 200.00kΩ / 2.0000MΩ / 20.000MΩ / 200.00MΩ |
| Capacitance | Range | 9.999nF / 99.99nF / 999.9nF / 9.999uF / 99.99uF / 999.9uF / 9.999mF / 99.99mF |
| Frequency | Range | 9.999Hz - 9.9999MHz (input ≥ AC 500mVp-p) |
| Diode Test | Open-circuit voltage approx. 3V, max test current approx. 2mA | |
| Continuity Test | Buzzer sounds at <50Ω; displays OL at ≥200Ω | |
| Auto Range Switching | Applicable to all measurement functions | |
| Overrange Indication | O.L (Over load) | |
| Dynamic Data Window | Continuously refreshes to display real-time measurement data | |
| Fuse | 10A/250V | |
| Signal Source Parameters | ||
| Waveform Frequency | Sine Wave | 10Hz-100kHz (1-2-3-5 step mode) |
| Triangle Wave | 10Hz-100kHz (1-2-3-5 step mode) | |
| Square Wave | 10Hz-4MHz (5MHz for reference only) (1-2-3-5 step mode) | |
| Square Wave Duty Cycle | 10%-90% (adjustable in 10% increments, 1-2-3-5 step mode) | |
| Output Voltage | 3Vpp (output impedance approx. 50Ω) | |
9. Maintenance
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: For long-term storage, charge the battery to approximately 50% every three months to maintain battery health.
10. User Tips
- For precise thermal imaging of small components, remember to use the macro lens and position the device approximately 3 cm from the target.
- When using the oscilloscope, utilize the auto-adjustment feature for quick and clear waveform display.
- Take advantage of the 4GB built-in storage to save important thermal images, videos, and measurement data for later analysis and reporting.
- Explore the various thermal palettes to find the best visualization for different temperature contrasts and applications.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the manufacturer's official website. Keep your proof of purchase for warranty claims.