TV 470 - Measuring equipment Testboy - Free user manual and instructions
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| Product Type | Digital Multimeter |
| Brand | Testboy |
| Model | TV 470 |
| Display | LCD, 4000 counts |
| AC Voltage Range | 0.1 mV to 600 V |
| DC Voltage Range | 0.1 mV to 600 V |
| Resistance Range | 0.1 Ω to 40 MΩ |
| Capacitance Range | 1 nF to 100 µF |
| Frequency Range | 10 Hz to 10 MHz |
| Continuity Test | Yes, with buzzer |
| Diode Test | Yes |
| Temperature Measurement | -20°C to 1000°C (with thermocouple) |
| Data Hold | Yes |
| Auto Range | Yes |
| Backlight | Yes |
| Safety Rating | CAT III 600V |
| Power Supply | 9V battery (6F22) |
| Dimensions | 195 x 90 x 40 mm |
| Weight | Approx. 350 g (with battery) |
| Accessories Included | Test leads, thermocouple, battery, manual |
| Cleaning | Wipe with dry cloth; avoid solvents |
| Repairability | Battery and fuse replaceable; other repairs by service center |
Frequently Asked Questions - TV 470 Testboy
How do I measure AC voltage with the Testboy TV 470?
Turn the rotary switch to the V~ position. Insert the black test lead into the COM jack and the red test lead into the V/Ω jack. Connect the probes to the circuit and read the display.
What is the maximum voltage the TV 470 can measure?
The TV 470 can measure AC/DC voltage up to 600 V. Do not exceed this rating to avoid damage or injury.
How do I replace the battery?
Turn off the meter and remove the test leads. Open the battery compartment screw on the back. Replace the 9V battery (6F22) with a new one, ensuring correct polarity. Close the compartment and tighten the screw.
Why does the display show 'OL'?
'OL' stands for Overload. It means the measured value exceeds the selected range. Switch to a higher range or use autorange if available.
Can the TV 470 measure temperature?
Yes, it can measure temperature using the included thermocouple probe. Set the rotary switch to the TEMP position and connect the thermocouple.
Is the TV 470 safe for use in electrical panels?
Yes, it is rated CAT III 600V, making it suitable for measurements on distribution circuits and electrical panels.
How do I test continuity?
Set the rotary switch to the continuity/buzzer symbol. Insert test leads as for resistance. Connect probes across the circuit. A continuous beep indicates a complete circuit with low resistance.
What should I do if the TV 470 does not turn on?
First, check the battery. Replace it if depleted. Also ensure the rotary switch is not in an off position. If still not working, check the fuse (if applicable) or contact support.
How do I clean the TV 470?
Use a dry, lint-free cloth to wipe the exterior. Do not use water, solvents, or abrasive cleaners. For the input jacks, use a cotton swab lightly moistened with alcohol.
Can I measure current with the TV 470?
The TV 470 typically does not measure current directly (no mA/A range). It is designed for voltage, resistance, capacitance, frequency, and temperature. Refer to the manual for exact specifications.
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USER MANUAL TV 470 Testboy
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Product information
Brand : Testboy
Model : TV 470
Category : Measuring equipment