Triplett 9005-A - User Manual

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Summary

Introduction to Triplett 9005-A Multimeter

Triplett 9005-A Safety Rules and Warnings

Pre-Use and General Safety

Covers reading instructions, pre-use checks, and basic handling safety.

Electrical Hazard Precautions

Details precautions for high voltages, connections, and circuit types.

Operational and Environmental Safety

Addresses usage in adverse conditions, temperature changes, and capacitor hazards.

Measurement and Interference Safety

Covers high-voltage testing, connection polarity, and field interference.

Understanding International Symbols

Triplett 9005-A Technical Specifications

Triplett 9005-A Front Panel Overview

Measurement Procedures

Using the HOLD Feature

Explains how to use the HOLD feature to freeze readings on the LCD.

Auto Power Off Functionality

Describes the Auto Power Off feature that conserves battery life.

DC Voltage Measurement

Provides instructions and warnings for measuring DC voltage.

AC Voltage Measurement

Provides instructions and warnings for measuring AC voltage.

DC Current Measurement

Provides instructions and warnings for measuring DC current.

AC Current Measurement

Provides instructions and warnings for measuring AC current.

Resistance Measurement

Details how to measure resistance, including warnings and notes.

Continuity Beeper Operation

Explains how to use the continuity beeper function and its limitations.

Diode Test Procedure

Provides instructions for performing a diode test, including warnings.

Transistor hFE Measurement

Details how to measure the hFE (current gain) of a transistor.

Maintenance and Troubleshooting

Battery Replacement Guide

Step-by-step guide for replacing the meter's battery.

Fuse Replacement Guide

Instructions for replacing the fuse in the multimeter.

Summary

Introduction to Triplett 9005-A Multimeter

Triplett 9005-A Safety Rules and Warnings

Pre-Use and General Safety

Covers reading instructions, pre-use checks, and basic handling safety.

Electrical Hazard Precautions

Details precautions for high voltages, connections, and circuit types.

Operational and Environmental Safety

Addresses usage in adverse conditions, temperature changes, and capacitor hazards.

Measurement and Interference Safety

Covers high-voltage testing, connection polarity, and field interference.

Understanding International Symbols

Triplett 9005-A Technical Specifications

Triplett 9005-A Front Panel Overview

Measurement Procedures

Using the HOLD Feature

Explains how to use the HOLD feature to freeze readings on the LCD.

Auto Power Off Functionality

Describes the Auto Power Off feature that conserves battery life.

DC Voltage Measurement

Provides instructions and warnings for measuring DC voltage.

AC Voltage Measurement

Provides instructions and warnings for measuring AC voltage.

DC Current Measurement

Provides instructions and warnings for measuring DC current.

AC Current Measurement

Provides instructions and warnings for measuring AC current.

Resistance Measurement

Details how to measure resistance, including warnings and notes.

Continuity Beeper Operation

Explains how to use the continuity beeper function and its limitations.

Diode Test Procedure

Provides instructions for performing a diode test, including warnings.

Transistor hFE Measurement

Details how to measure the hFE (current gain) of a transistor.

Maintenance and Troubleshooting

Battery Replacement Guide

Step-by-step guide for replacing the meter's battery.

Fuse Replacement Guide

Instructions for replacing the fuse in the multimeter.

Overview

The Triplett Model 9005-A is a 3 1/2 digit, high-reliability, handheld digital multimeter designed for a wide range of electrical measurements. It features a large 1.15" (29mm) high Liquid Crystal Display (LCD) with onscreen mode annunciators, providing clear and easy-to-read measurements. The meter's core utilizes an LSI (Large Scale Integration) integrated circuit with dual slope A/D conversion, ensuring stability and accuracy in its readings.

Function Description:

The 9005-A is capable of measuring:

AC and DC Voltage: For evaluating both alternating and direct current electrical potentials.
AC and DC Current: To measure the flow of current in circuits.
Resistance: For determining the opposition to current flow in a component or circuit.
Transistor Gain (hFE): To test the current amplification factor of NPN or PNP transistors.
Diode Voltage Drop: For checking the forward voltage drop across a diode.
Continuity: To quickly identify if a circuit is open or closed, indicated by a beeper.

Important Technical Specifications:

Display:

Type: 1.15" (29mm) high LCD
Resolution: 2000 counts (0000 to 1999)
Overrange Indication: First digit displays "1", remaining digits are blank.
Measurement Rate: 2 to 3 measurements per second
Low Battery Annunciator: Displayed as a battery symbol.

Operating Conditions:

Temperature: 0 to 40 degrees C (32 to 104 degrees F)
Relative Humidity: Less than 75%

Storage Conditions:

Temperature: -10 to 50 degrees C (14 to 122 degrees F)
Relative Humidity: Less than 80%

Physical Characteristics:

Case Dimensions (L x W x H): 19.7 x 8.6 x 3.8 cm (without holster)
Weight: 272 grams (0.60 lbs.) with battery, without holster or leads.

Power:

Battery: 1 standard 9 volt alkaline battery (Triplett PN 37-48)
Battery Life: Approximately 200 hours

Fuses:

Type: 2A/250 volt FAST, 5 x 20mm fuse for µA & mA ranges (Triplett PN 3207-121)
Alternative Fuses: Littelfuse # 217002, 216002, 235002; Bussman # GDA-2, GDB-2 or GMA-2

Safety & Approvals:

Insulation: Double Insulated (Protection Class II)
Approvals: IEC 1010-1 (EN61010-1)
Overvoltage Category:
- Category I to 1000 volts DC
- Category I to 750 volts AC
- Category II to 600 volts AC/DC
- Category III to 300 volts AC/DC
CE Mark: EMC, LVD

Measurement Ranges and Accuracy (at 23°C +/- 5°C, RH < 75%):

DC Voltage:

Ranges: 200mV, 2V, 20V, 200V, 1000V
Resolution: 0.1mV to 1V
Accuracy: ±(0.8% rdg + 5 digits) for most ranges.
Input Impedance: 10MΩ (all ranges)
Overload Protection: 250V AC/DC rms (15 sec. Max) for 200mV range; 600V AC/DC rms for 2V/20V/200V ranges; 1000VDC, 1000VAC pk-pk max for 1000V range.

AC Voltage (40Hz to 400Hz, Average Value RMS of Sine Wave):

Ranges: 200mV, 2V, 20V, 200V, 750V
Resolution: 0.1mV to 1V
Accuracy: ±(1.2% rdg + 3 digits) for 200mV, 750V; ±(0.8% rdg + 3 digits) for 2V, 20V, 200V.
Input Impedance: 10MΩ (all ranges)
Overload Protection: 250V AC/DC rms for 200mV range; 600V AC/DC rms for 2V/20V/200V ranges; 750V AC/DC rms, 1000VAC pk-pk max for 750V range.

DC Current:

Ranges: 20µA, 200µA, 2mA, 20mA, 200mA, 2A, 10A
Resolution: 0.01µA to 10mA
Accuracy: ±(0.8% rdg + 3 digits) for µA/mA ranges; ±(1.0% rdg + 3 digits) for 2A; ±(2.0% rdg + 5 digits) for 10A.
Overload Protection: 2A / 250V fuse (below 2A range); 10A range is unfused.
Max. Current Input: 10A
Measuring Voltage Drop: Full range is 200mV.

AC Current (Average Value RMS of Sine Wave):

Ranges: 200µA, 2mA, 20mA, 200mA, 2A, 10A
Resolution: 0.1µA to 10mA
Accuracy: ±(1.2% rdg + 3 digits) for µA/mA ranges; ±(1.5% rdg + 3 digits) for 2A; ±(3.0% rdg + 5 digits) for 10A.
Overload Protection: 2A / 250V fuse (below 2A range); 10A range is unfused.
Max. Current Input: 10A
Measuring Voltage Drop: Full range is 200mV.

Resistance:

Ranges: 200Ω, 2KΩ, 20KΩ, 200KΩ, 2MΩ, 20MΩ, 200MΩ
Resolution: 0.1Ω to 100KΩ
Accuracy: ±(0.8% rdg + 2 digits) for most ranges; ±(1.0% rdg + 2 digits) for 2MΩ, 20MΩ; ±[5% (rdg-10) + 10 digits] for 200MΩ.
Open Circuit Voltage: Less than 700mV (approx. 3V for 200MΩ range).
Overload Protection: 250V DC or AC RMS (15 sec. Max).

Diode Test and Continuity:

Diode Test: Displays actual diode voltage in mV. Forward DC current about 1mA. Open circuit voltage about 2.8V.
Continuity Beeper: Sounds if continuity resistance is less than 20 to 100 Ohms. Open circuit voltage about 2.8V.
Overload Protection: 250V DC or AC RMS (15 sec. Max).

Transistor hFE Test:

Measurement: Can measure NPN or PNP transistor hFE.
Range: 0-1000
Accuracy: Base current about 10µA. Vce about 2.8V.

Usage Features:

32 Measurement Ranges: Provides versatility for various applications.
HOLD Button: "Freezes" the current reading on the LCD for convenient viewing, with an "H" annunciator indicating activation.
Auto Power Off: Automatically turns the meter off after 15 to 20 minutes of inactivity to conserve battery life.
Protective Holster: A vinyl holster absorbs shock and includes a built-in stand and test lead holders.
Built-in Stand: Allows the meter to be tilted for optimal viewing on a table.
Flexible Loop: Enables hanging the meter from a hook or nail.
Transistor Socket: Dedicated socket for hFE measurements of NPN/PNP transistors.

Maintenance Features:

Battery Replacement: Requires removing 3 screws from the back case. Uses a standard 9-volt alkaline battery (Triplett PN 37-48).
Fuse Replacement: Requires opening the meter case to locate and replace the 2A/250V FAST fuse (Triplett PN 3207-121) with an exact or equivalent type.
Cleaning: The outside of the meter can be cleaned with a cloth dampened with a mild detergent solution. Abrasive cleansers or chemical solvents should be avoided.
Calibration: Periodic calibration (suggested annually) is recommended to ensure accuracy.
Return for Repair: Instructions are provided for obtaining a Return Material Authorization (RMA) number from Customer Service before returning the unit for repair.

Safety Warnings and Precautions:

NOT for High Energy Circuits: The meter is explicitly NOT to be used for measuring circuits fused at greater than 4KW, distribution circuits, power entrance circuits, or circuits classified as CE CATEGORY III (CAT III).
Read Manual First: Always read all instructions before use to prevent damage or injury.
Verify Functionality: Before critical measurements, test the meter on a known live circuit to ensure it is working correctly.
Do Not Use Damaged Meter/Leads: Avoid using the meter if its case is open, parts are removed, or if the meter or test leads show signs of damage (e.g., damaged insulation, exposed metal, cracked case, burnt smell).
Proper Lead Insertion: Ensure test leads are properly inserted and seated in the correct input jacks.
Observe Max Ratings: Do not exceed the maximum voltage or current limitations.
Avoid Voltage on Ohms/Diode/Continuity: Do not apply voltage or current to the meter when set to Ohms, Diode Test, or Continuity Beeper modes.
Correct Jack Usage: Do not attempt to measure voltage with leads plugged into mA or 20A jacks.
Do Not Rotate Switch Under Load: Avoid rotating the Function switch with test leads connected to the circuit.
Replace Fuses Correctly: Use only exact or equivalent fuses; do not "bridge" fuses.
Earth Ground Potential: Do not apply voltages above 600V AC/DC relative to earth ground.
Low Battery Warning: Discontinue use when the low battery symbol is displayed, as readings may be inaccurate.
High Voltage Caution: Exercise caution when working with voltages above 25V AC or 35V DC due to the risk of electrical shock.
Not for Children: This meter is not intended for use by children.
Adverse Environments: Do not use in rain, snow, fog, steam, explosive gases, dusts, or condensing atmospheres.
Temperature Acclimation: Allow the meter to warm to room temperature if brought from a cold environment to prevent condensation.
No Modifications: Do not modify the meter's design.
AC/DC Mode Mismatch: Be aware that the meter will not read AC voltage if set to DC, or vice versa.
Live Circuit Awareness: Do not touch the metallic portion of one test lead if the other is connected to a live circuit.
No Display: Do not use the meter if there is no display on the LCD.
Capacitor Caution: Exercise caution when measuring circuits with capacitors, as they can store dangerous energy.
Industrial High Energy Circuits: Do not use for industrial applications with high energy circuitry (over 4000 watts to a load before a safety device interrupts).
Current Measurement Voltage Limit: Do not measure current in circuits whose open circuit voltage exceeds 250V AC/DC.
Safe High-Voltage Probing: When checking high-voltage circuits, clip one probe to the neutral/ground first, then probe with the other.
Doubtful Condition: If the meter's safety is in doubt, remove it from service.
Full Functionality Check: Ensure the meter works correctly on all ranges and modes.
Storage Conditions: Avoid using if stored under unfavorable conditions.
Transport Damage: Do not use if potentially damaged in transport.
Alligator Clip Connection: Always connect alligator clips to the low side of a power circuit first.
Disconnect Before Changing Function/Range: Disconnect test leads from test points before changing the function or range.
Magnetic/Electrostatic/RF Fields: Avoid usage near strong magnetic, electrostatic, or RF fields, as they can cause erroneous readings.
Battery Removal for Storage: Remove the battery if unused for over a month to prevent chemical leakage.
Battery Leakage: Do not use if there is evidence of battery chemical leakage.
HOLD Function Awareness: Be aware of the HOLD function's activation, as it may mask dangerous potentials.
Transistor hFE Test: Do not attempt to measure hFE with test leads connected.