LUTRON MO-2002

LUTRON MO-2002 Miliohm Meter Instruction Manual

Modél: MO-2002

1. Bubuka

The LUTRON MO-2002 is a high-precision benchtop miliohm meter designed for accurate resistance measurements across a wide range. Utilizing a four-wire measurement technique, it ensures precise readings, especially for very low impedance values. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your MO-2002 Miliohm Meter.

LUTRON MO-2002 Miliohm Meter front view kalawan test lead
Gambar 1: Hareupeun view of the LUTRON MO-2002 Miliohm Meter with included test leads.

2. Émbaran Kasalametan

PERHATOSAN:

  • This instrument contains no user-serviceable parts. Do not attempt to open or repair the device. All servicing should be performed by qualified personnel only.
  • Pastikeun vol catu daya anu lerestage (AC110V or AC220V, 50/60Hz) is used as specified for your unit.
  • Observe all safety precautions when working with electrical circuits.
  • The device is rated CAT II 240V. Do not use it for measurements exceeding this rating.
Rear panel of LUTRON MO-2002 showing warning labels and power input
Figure 2: Rear panel of the MO-2002, highlighting safety warnings and power input.

3. Fitur konci

  • Wide measuring range: 0.01mΩ to 20KΩ across 7 selectable ranges.
  • Four-wire measurement technique for high accuracy, especially for low impedance values.
  • Integrated high/low range alarm with audible (beeping) and visual (LED) indications.
  • Built-in overload protection for enhanced durability and safety.
  • Benchtop design for stable and convenient operation.
  • Clear digital display for easy reading of measurement results.

4. Spésifikasi

4.1 Spésifikasi Umum

ParameterNilai
Measurement Range (Test Current)20 mΩ (1A DC) / 200 mΩ (1A DC) / 2Ω (100mA DC) / 20Ω (10 mA DC) / 200Ω (1 mA DC) / 2KΩ (100μA DC) / 20KΩ (10μA DC)
Setélan SiagaAlarm setting, upper and lower setting values can be set by LED. Buzzer alarm sound.
Suhu Operasi0 ~ 50°C
Kalembaban OperasiLower than 80% R.H.
Gawé Power SupplyAC110V±15%, 50/60Hz or AC230V±15%, 50/60Hz (as specified for your unit)
Working Power Fuse200mA/250V, Size 5*20mm dia.
Dimensi Fisik280 x 210 x 90 mm
BeuratKira-kira 2.2 kg
Tipe tampilanDigital Ngan
SertifikasiCE
Batré KaasupYes (Internal, not user-serviceable)
Table of general specifications for LUTRON MO-2002
Figure 3: General specifications including measurement range, alert settings, environmental conditions, power, dimensions, and weight.

4.2 Measurement Range and Accuracy

RentangResolusiRoad VoltageNguji AyeunaAkurasi
20 mΩ0.01 mΩAbout 2.7 VDC1A±(0.2% + 6 digit)
200 mΩ0.1 mΩAbout 3.3 VDC1A±(0.2% + 4 digit)
1 mΩAbout 3.5 VDC100mA
20Ω0.01ΩAbout 4.1 VDC10 mA
200Ω0.1ΩAbout 4.5 VDC1 mA
2KΩ0.001KΩAbout 4.5 VDC100μA
20KΩ0.01KΩAbout 4.5 VDC10μA
Table detailing measurement ranges, resolution, road voltage, test current, and accuracy for LUTRON MO-2002
Figure 4: Detailed measurement range and accuracy specifications.

4.3 Buka Circuit Voltage

RentangBuka Circuit Voltage
20 mΩAbout 2.7 VDC
200 mΩAbout 3.3 VDC
About 3.5 VDC
20ΩAbout 4.1 VDC
200ΩAbout 4.5 VDC
2KΩAbout 4.5 VDC
20KΩAbout 4.5 VDC
Table showing open circuit voltage for each measurement range of LUTRON MO-2002
Figure 5: Open circuit voltage specifications per measurement range.

5. Eusi Paket

Saatos ngabongkar bungkusan, mangga pariksa yén sadaya barang anu didaptarkeun di handap aya sareng dina kaayaan anu saé:

  • LUTRON MO-2002 Miliohm Meter (1 unit)
  • Kabel Listrik (1 pc)
  • 4-wire Test Clamp (Kling clamp) (1 pair)
  • Operating Instructions (1 copy)
LUTRON MO-2002 Miliohm Meter with power cord and 4-wire test clamps
Figure 6: The MO-2002 meter along with its standard accessories: power cord and 4-wire test clamps.

6. Setélan

  1. panempatan: Place the MO-2002 meter on a stable, flat surface, away from strong electromagnetic fields, direct sunlight, and excessive heat or moisture.
  2. Sambungan Daya:
    • Pastikeun saklar daya dina panel tukang aya dina posisi "OFF".
    • Connect the provided power cord to the AC inlet on the rear panel of the meter.
    • Plug the other end of the power cord into a suitable AC power outlet (AC110V or AC220V, 50/60Hz, depending on your unit's specification).
  3. Test Lead Connection:
    • Identify the four input terminals on the front panel: FORCE+, SENSE+, SENSE-, FORCE-.
    • Connect the 4-wire test clamps to these terminals. Typically, the red leads connect to FORCE+ and SENSE+, and the black leads connect to SENSE- and FORCE-. Ensure a secure connection.
Samping view of LUTRON MO-2002 showing input terminals
Gambar 7: Sisi view of the MO-2002, showing the FORCE and SENSE input terminals for 4-wire measurement.
Close-up of 4-wire test clamps with red and black leads
Figure 8: Close-up of the 4-wire test clamps, essential for accurate low-resistance measurements.

7. Operasi

  1. Daya Hurungkeun: Flip the power switch on the rear panel to the "ON" position. The display should illuminate.
  2. Pilihan Range:
    • Use the range selection buttons on the front panel (e.g., 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω, 2KΩ, 20KΩ) to select the appropriate measurement range.
    • Start with a higher range if the resistance value is unknown to avoid overloading the meter. Adjust downwards for better resolution.
  3. Connecting to the Device Under Test (DUT):
    • Ensure the DUT is de-energized and safe to test.
    • Connect the 4-wire test clamps to the points on the DUT where resistance is to be measured. The FORCE leads inject current, and the SENSE leads measure the voltage drop, minimizing lead resistance errors.
  4. Nyokot Pangukuran:
    • Once the DUT is connected and the range is selected, the resistance value will be displayed on the digital screen.
    • Allow a few seconds for the reading to stabilize.
  5. Comparator Function (Hi/Lo Alarm):
    • The MO-2002 features a comparator function with Hi/Lo alarm settings.
    • Use the "Comparator Set" knobs (HI and LO) to set the upper and lower resistance thresholds.
    • When a measurement falls outside these thresholds, the corresponding HI or LO LED will light up, and the buzzer will sound (if enabled).
    • This feature is useful for production line testing or quality control to quickly identify out-of-spec components.
  6. Daya Pareum: After use, disconnect the test leads from the DUT, then turn off the meter using the power switch.
Video 1: A brief demonstration of the LUTRON MO-2002 Miliohm Meter in operation, showcasing fitur sarta pamakéan na.

8. Pangropéa

  • beberesih: Wipe the meter's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
  • Panyimpenan: Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.
  • Kalibrasi: For continued accuracy, periodic calibration by a qualified service center is recommended.
  • Ngagantian sekering: If the meter fails to power on, check the power fuse located on the rear panel. Replace it only with a fuse of the same type and rating (200mA/250V, 5x20mm dia.). Ensure the meter is disconnected from the power supply before attempting fuse replacement.

9. Cara ngungkulan

MasalahMungkin Cukang lantarananaSolusi
Méter teu hurung.No power from outlet, faulty power cord, blown fuse.Check power outlet, inspect power cord, replace fuse (see Maintenance section).
Bacaan anu teu akurat atanapi teu stabil.Poor connection of test leads, incorrect range selected, external interference, meter out of calibration.Ensure test leads are securely connected to both meter and DUT. Select appropriate range. Move meter away from strong electrical noise sources. Consider professional calibration.
HI/LO alarm constantly active.Comparator thresholds set incorrectly, DUT resistance outside expected range.Adjust HI/LO comparator settings. Verify the actual resistance of the DUT.
"OL" or "OVERLOAD" displayed.Resistance value exceeds the selected range.Select a higher measurement range.

10. Tips pamaké

  • Always use the 4-wire Kelvin connection method for critical low-resistance measurements to eliminate the resistance of the test leads from the measurement.
  • For highly inductive loads, allow sufficient time for the reading to stabilize.
  • When measuring very low resistances, ensure good contact between the test clamps and the material being measured to prevent contact resistance from affecting readings.
  • Regularly check the test leads for any signs of damage or wear, as this can impact measurement accuracy.

11. Garansi jeung Rojongan

LUTRON products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please contact your local LUTRON distributor or the point of purchase. Please have your model number (MO-2002) and purchase details ready when contacting support.