20-791 - Uncategorized Biltema - Free user manual and instructions
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| Product Type | Digital Multimeter |
| Brand | Biltema |
| Model | 20-791 |
| Dimensions | 150 x 70 x 30 mm |
| Weight | 250 g (including battery) |
| Power Supply | 9V battery (NEDA 1604, 6LR61) |
| Display | LCD, 3 1/2 digits, max reading 1999 |
| DC Voltage Range | 200 mV, 2 V, 20 V, 200 V, 500 V |
| AC Voltage Range | 200 V, 500 V |
| DC Current Range | 200 µA, 2 mA, 20 mA, 200 mA, 10 A |
| Resistance Range | 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ |
| Diode Test | Yes, with buzzer |
| Continuity Test | Yes, audible beep below 30 Ω |
| Overload Protection | Fuse: 250 mA/500 V (ceramic) for mA/µA; 10 A/500 V (ceramic) for A |
| Safety Rating | CAT II 500 V, CAT I 600 V |
| Accessories Included | Test leads, 9V battery, user manual |
| Maintenance | Replace battery when low; clean with dry cloth |
| Spare Parts | Test leads, fuses (250 mA and 10 A), 9V battery |
| Repairability | Replaceable fuse and battery; no user-serviceable parts inside |
| Storage Temperature | -10°C to 50°C |
Frequently Asked Questions - 20-791 Biltema
How do I turn on the Biltema 20-791 multimeter?
Turn the rotary switch from OFF to any measurement function (e.g., V~, V=, A, Ω, etc.). The LCD will power on.
What battery does the 20-791 use and how do I replace it?
It uses a standard 9V battery (NEDA 1604). Remove the screw on the back cover, lift off the battery compartment, replace the battery, and reattach the cover.
Why does the multimeter show '1' on the display?
A '1' on the left side indicates the reading exceeds the selected range. Switch to a higher range to get a valid reading.
How do I measure DC voltage with this device?
Set the rotary switch to V= (DC). Insert black lead into COM and red lead into VΩmA. Connect probes to the circuit. Read the voltage on the display.
What is the maximum current I can measure with the 20-791?
The maximum current is 10 A for short periods (less than 10 seconds). For continuous use, keep below 200 mA in the mA/µA input.
How do I test continuity?
Set the rotary switch to the continuity/diode position (usually marked with a diode symbol and sound waves). Connect probes across the circuit. A beep indicates continuity (resistance less than 30 Ω).
What safety precautions should I take when using the multimeter?
Always use the correct input jacks and range. Do not exceed the rated voltage (500 V CAT II). Inspect leads for damage. Never measure voltage when the rotary switch is in current or resistance mode.
Can I measure AC current with the 20-791?
No, this model only measures AC voltage (V~) and DC current. For AC current, you need a clamp meter or another device.
How do I clean and store my Biltema multimeter?
Turn off and remove leads. Wipe with a dry, lint-free cloth. Do not use solvents. Store in a dry place at room temperature. Remove battery if not used for extended periods.
Where can I find spare parts or fuses for the 20-791?
Spare parts such as test leads and fuses are available at Biltema stores or online. Use only specified fuses: 250 mA/500 V (ceramic) for mA/µA input and 10 A/500 V (ceramic) for 10 A input.
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USER MANUAL 20-791 Biltema
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Product information
Brand : Biltema
Model : 20-791
Category : Uncategorized