ANENG DM850 Digital Multimeter Instruction Manual

1. Nhanganyaya

The ANENG DM850 is a compact, pocket-sized digital multimeter designed for measuring AC and DC voltage, DC current, resistance, and diode. Some models also include temperature and transistor (hFE) measurement functions, as well as an audible continuity test. It can also be used as a signal generator. The device features full-range overload protection and a low battery voltage indication, making it an ideal instrument for use in laboratories, workshops, for DIY enthusiasts, and in home applications.

Chigadzirwa Vhidhiyo Pamusoroview

This video demonstrates the key features and basic operations of the ANENG DM850 Digital Multimeter, including unboxing and various measurement functions.

2. Safety Information

YAMBIRO:

• To avoid electrical shock hazard and/or damage to the instrument, do not measure voltages inogona kudarika 500V pamusoro pevhu.
• Before using the instrument, inspect test leads, connectors, and probes for cracks, breaks, or crazes in the insulation.
• Kutadza kunzwisisa uye kutevedzera YAMBIRO nemirayiridzo yekushanda kunogona kukonzera kukuvara kwakakomba kana kuuraya uye/kana kukuvara kwepfuma.

3. Chigadzirwa Pamusoroview

3.1. Package Zviri mukati

The ANENG DM850 Digital Multimeter package typically includes:

• 1 x ANENG DM850 Digital Multimeter
• 1 x Pair yeMuedzo Inotungamira (Dzvuku uye Nhema)
• 1 x Bhuku reMirayiridzo
• 1 x Outer Packing Box (optional, depending on purchase)

3.2. Front Panel Tsanangudzo

1. Function and Range Switch: This rotary switch is used to select the desired measurement function and range, and to turn the instrument ON/OFF. Always set to "OFF" when not in use to conserve battery.
2. Ratidza: A 3½ digit, 7-segment, 0.5" high LCD for displaying measurement values.
3. "COM" Jack (Common): Input terminal for the black (negative) test lead.
4. "VΩmA" Jack: Input terminal for the red (positive) test lead for all voltage, resistance, and current measurements (except 10A).
5. "10A" Jack: Input terminal for the red (positive) test lead for 10A current measurements.
6. Bhatani reKubata Data: Press this button to freeze the current reading on the display for easy recording.
7. Triode Socket: Used for Transistor hFE measurements.
8. Detection Indicator Light: Illuminates during on-off detection.
9. Low Battery Symbol: Indicates when the battery needs replacement.

3.3. Core Functions

• DC Current (A=): Measures direct current.
• DC Voltage (V=): Miyero yakananga voltage.
• AC Voltage (V~): Measures alternating voltage.
• On-off Beep: Audible continuity test.
• BATA: Data retention function.
• Kuramba (Ω): Inoyera kuramba kwemagetsi.
• Triode (hFE): Measures transistor gain.
• Diode: Inoedza mashandiro e diode.
• Simba Symbol: Inoratidza simba chinzvimbo.
• Low Power: Inoratidza bhatiri shoma.

4. Setup

4.1. Kuiswa kwebhatiri

The ANENG DM850 requires a 9V battery (NEDA 1604 6F22 type) for operation. The battery is not included in the package.

1. Use a screwdriver to unscrew the screw on the battery compartment cover located on the back of the multimeter.
2. Bvisa chivharo.
3. Correctly install a 9V battery, ensuring the positive and negative poles are aligned as indicated.
4. Tsiva chivharo chekamuri yebhatiri uye chengetedza nescuru.

4.2. Adjustable Support Frame

The multimeter is equipped with an extendable support frame on the back, allowing you to adjust its angle by 45 degrees for easier viewing and operation on a workbench.

5. Operating Instructions

5.1. General Measurement Steps

1. Connect the black test lead to the "COM" jack.
2. Connect the red test lead to the appropriate jack ("VΩmA" for most measurements, "10A" for high current).
3. Set the Function and Range Switch to the desired measurement type and range. If the value is unknown, start with the highest range and decrease until a stable reading is obtained.
4. Batanidza bvunzo inotungamira kudunhu kana chikamu chiri kuyerwa.
5. Read the value on the digital display.

5.2. AC Voltage Kuyera

Turn the function pack to the AC voltage range (V~). Insert the probes into the socket to measure the current AC voltage value.

5.3. DC Voltage Kuyera

Turn the function pack to the DC voltage range (V=). Connect the probes to the battery or DC source to measure the DC voltage value.

5.4. DC Ikozvino kuyerwa

Connect the red test lead to the "VΩmA" jack for measurements up to 200mA, or to the "10A" jack for measurements up to 10A. The black test lead goes to "COM". Open the circuit and connect the test leads IN SERIES with the load to measure the current. The "10A" function is for intermittent use only (max 15 seconds contact time, with a minimum 15-second intermission).

5.5. Resistance Measurement

Set the RANGE switch to the desired OHM (Ω) position. If the resistance is part of a circuit, turn off power and discharge all capacitors before measurement. Connect test leads to the component and read the value.

5.6. Diode Measurement

Set the RANGE switch to the Diode (→|) position. Connect the red test lead to the anode and the black test lead to the cathode of the diode. The forward voltage drop in mV will be displayed. If the diode is reversed, "1" will be shown.

5.7. Transistor hFE Measurement

Set the RANGE switch to the hFE position. Determine if the transistor is PNP or NPN type and identify the Emitter, Base, and Collector leads. Insert the leads into the proper holes of the hFE socket on the front panel. The meter will display the approximate hFE value.

5.8. Inonzwika Kuenderera Muedzo

Set the RANGE switch to the Continuity (Ω))) position. Connect test leads to two points of the circuit. If the resistance is lower than 30Ω ± 20Ω, the buzzer will sound, indicating continuity.

5.9. Data Hold

Press the "HOLD" button to freeze the current reading on the display. Press it again to release and resume live readings.

5.10. Test Signal Use

Set the RANGE switch to the Test Signal (Hz) position. A test signal (50Hz) appears between the "VΩmA" and "COM" jacks. The output voltage is approximately 5V p-p with 50kΩ impedance.

6. Kuchengeta

6.1. Bhatiri uye Fuse Replacement

If the "" symbol appears on the display, it indicates that the battery should be replaced. Fuses rarely need replacement and typically blow due to operator error.

CHENJERERO:

• Usati waedza kuvhura kesi yechiridzwa, ive shuwa yekudzima bvunzo inotungamira kubva kune chero ane simba maseketi kudzivirira kuvhunduka njodzi.

To replace the battery or fuse (500mA/250V):

1. Remove the 2 screws on the bottom of the case.
2. Carefully open the case.
3. Remove the old battery and replace it with a new 9V battery (NEDA 1604 6F22 type), observing polarity.
4. If replacing the fuse, ensure the new fuse matches the specifications (500mA/250V).
5. Close the case and secure it with the screws.

7. Kugadzirisa matambudziko

If you encounter any problems during the use of the product, please refer to the following guidelines:

• Product Not Operating Properly: If the product is not operating normally, please provide a detailed video of the issue to ANENG customer service. Their experts and technicians can help diagnose the problem and provide a solution.
• Matambudziko Emhando Yezvinhu: In case of quality problems other than "man-made damage" during the use of the product, replacement services or refunds can be provided. Contact ANENG customer service for specific product damage to confirm and discuss solutions.
• Artificially Damaged Product: This brand's products are mostly used to detect electrical and other measurement parameters. It requires a certain degree of electrical knowledge. Pay attention to the use of certain operating procedures, select the correct measurement method, and avoid dangerous events. If the customer uses the product improperly and the use method is not man-made damage, which is not within the scope of after-sales service of the product. However, you can contact ANENG customer service to receive a certain amount of coupons to deduct the newly purchased ANENG products.

8. Zvinotsanangurwa

9. Mazano emushandisi

• Bhatiri Type: The ANENG DM850 Multimeter requires a 9V battery (NEDA 1604 6F22 type). Ensure you have this specific battery on hand as it is not included with the device.
• Current Measurement Safety: When measuring current, always connect the multimeter in series with the circuit. Never directly contact the probes to a live voltage source when in current measurement mode, as this can damage the instrument.
• Data Hold Basa: Utilize the 'HOLD' button to conveniently freeze readings on the display, especially when working in awkward positions or needing to record values.

10. Warranty & Tsigiro

ANENG provides professional after-sales support for their products. For any inquiries or assistance, please contact ANENG customer service.

You can also refer to the official user manual in PDF format for more detailed information:

• View Mushandisi Manual (PDF)