ACP-31 - Multimeter ALECTO - Free user manual and instructions
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| Product type | Digital multimeter |
| Brand | Alecto |
| Model | ACP-31 |
| Display | LCD, 3.5 digit (1999 counts) |
| DC voltage range | 200 mV to 600 V |
| AC voltage range | 200 V to 600 V |
| DC current range | 200 µA to 10 A |
| Resistance range | 200 Ω to 2000 kΩ |
| Diode test | Yes |
| Transistor test (hFE) | Yes |
| Continuity buzzer | Yes |
| Input impedance | 1 MΩ |
| Sampling rate | 2 to 3 times per second |
| Dimensions (L x W x H) | 130 x 75 x 30 mm |
| Weight | Approx. 150 g incl. battery |
| Power supply | 9 V battery (6F22) |
| Low battery indicator | Yes |
| Overload protection | Yes |
| Operating temperature | 0 °C to 40 °C |
| Maintenance & cleaning | Wipe with a dry cloth; do not use solvents |
| Safety | CAT II, double insulation |
| Spare parts & repairability | Replaceable test leads and battery |
| General information | Ideal for hobbyists and basic electrical testing |
Frequently Asked Questions - ACP-31 ALECTO
How do I measure DC voltage?
Set the selector to the DC V range. Connect the black lead to COM and the red lead to VΩmA. Place the test leads across the circuit. Read the value on the LCD. Ensure the voltage does not exceed 600 V.
How do I measure resistance?
Turn off power to the circuit. Set the selector to Ω range. Connect the leads as for voltage measurement. Touch the leads across the resistor. The LCD displays the resistance. For accurate readings, disconnect the component from the circuit.
How do I test continuity?
Set the selector to the continuity mode (usually a diode/buzzer symbol). Insert the leads into COM and VΩmA. Touch the test probes together – you should hear a beep. Place probes on the two points to test. If resistance is low (below ~50 Ω), the buzzer sounds.
Which battery does the ACP-31 use?
The Alecto ACP-31 uses a standard 9V battery (6F22). This battery is widely available.
How do I replace the battery?
Switch off the meter and remove the test leads. Remove the screw on the rear battery compartment. Open the cover, disconnect the old battery, and connect a new 9V battery observing polarity. Reattach the cover and screw.
What safety precautions should I take?
Always start with the highest range if the value is unknown. Never measure voltages above 600 V. Do not use the meter in wet or explosive environments. Disconnect the test leads before opening the battery cover. Inspect the leads for damage.
What does "OL" mean on the display?
"OL" stands for overload or open loop. It indicates that the measured value exceeds the selected range, or the circuit is open. Choose a higher range or check the connection.
Can I measure AC current?
The ACP-31 measures DC current only, up to 10 A. For AC current, you would need a clamp meter or a multimeter with AC current capability. Refer to the manual for specific ranges.
How do I use the diode test?
Set the selector to the diode symbol. Connect the black lead to COM and the red lead to VΩmA. Place the red probe on the anode and the black probe on the cathode of the diode. The LCD shows the forward voltage drop in volts. Reverse the probes to check for blocking.
What is the accuracy of the multimeter?
Accuracy varies by range. Typically, DC voltage has an accuracy of ±0.8% of reading + 1 digit, DC current ±1% + 1 digit, and resistance ±1% + 1 digit. Check the manual for exact specifications.
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USER MANUAL ACP-31 ALECTO
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Product information
Brand : ALECTO
Model : ACP-31
Category : Multimeter