TPI 296 Instruction Manual
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TPI 296 Instruction Manual

Digital clamp-on meter amp plus
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296
Digital Clamp-on
Meter Amp Plus
Instruction Manual
561.8187
information@itm
www.
.com

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Summary of Contents for TPI 296

  • Page 1 Digital Clamp-on Meter Amp Plus Instruction Manual 561.8187 information@itm www. .com...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS A. INTRODUCTION 1. Congratulations ......3 2. Product Description ....3 3. Declaration of Conformity ..4 B. SAFETY CONSIDERATIONS ....5 C. TECHNICAL DATA 1. Features and Benefits....7 2. Product Applications ....8 3. Specifications......9 D. MEASUREMENT TECHNIQUES 1. Controls and Functions ....12 2.

  • Page 3: Introduction

    Please remember to complete and return your product warranty registration card. 2. Product Description The 296 is a clamp-on plus DMM with True RMS and Harmonics capabilities. The 296 offers measurements in all basic electrical functions, plus: • True RMS Provides accurate and dependable readings of non-linear loads.

  • Page 4: Declaration Of Conformity

    3. EC Declaration of Conformity This is to certify that TPI Model 296 conforms to the protection requirements of the council directive 89/336/EEC, in the approximation of laws of the member states relating to Electromagnetic compatibility and 73/23/EEC. The Low Voltage Directive by application of...

  • Page 5: Safety Considerations

    GENERAL GUIDELINES ALWAYS • Test the 296 before using it to make sure it is operating properly. • Inspect the test leads before using to make sure there are no breaks or shorts.
  • Page 6 INTERNATIONAL SYMBOLS CAUTION: RISK OF ELECTRIC SHOCK AC (ALTERNATION CURRENT) DC (DIRECT CURRENT) REFER TO INSTRUCTION MANUAL GROUND DOUBLE INSULATION EITHER DC OR AC 561.8187 information@itm www. .com...

  • Page 7: Technical Data

    C. TECHNICAL DATA 1. Features and Benefits Agency UL Listed to U.S. and Canadian Safety Standards. Meets CE and IEC 1010. True RMS Needed to accurately measure non-sinu- soidal AC voltage and current waveforms found on many controls and circuits. HDR Mode Determines if a signal is clean or distorted.

  • Page 8: Product Applications

    2. Product Applications Perform the following tests and/or measurements with the 296 and the appropriate function: HVAC/R • Heat anticipator current in thermostats. • Line voltage. ACV or DCV • Control circuit voltage. OHMS • Heating element resistance (continuity). OHMS •...

  • Page 9: Specifications

    3. Specifications IEC 1010 Over Voltage: CAT II - 1000V CAT III - 600V UL 3111-1 Pollution Degree 2 a. DCV Range Resolution Accuracy Impedance 0.01V ±0.75% of reading, 10Mohm 400V 0.1V ±3 digits 600V b1. ACV (45Hz to 60Hz) Range Resolution Accuracy...
  • Page 10 c. ACA Range Res. Accuracy Freq. Response 0.01A ±2% of reading, ±20 digits 45Hz to 60Hz ±4% of reading, ±20 digits 30Hz to 45Hz ±4% of reading, ±20 digits 60Hz to 1KHz 400A 0.1A ±2% of reading, ±10 digits 45Hz to 60Hz 700A ±5% of reading, ±10 digits 30Hz to 45Hz ±5% of reading, ±10 digits 60Hz to 1KHz...
  • Page 11 g. Diode Test Test Voltage Max Test Current Over Load Protection Approx. 2.5mA 600 V DC or Peak AC h. Frequency Range Res. Accuracy Overload Protection 1KHz 0.1Hz ±0.2% of reading, 600V DC or 10KHz 0.001KHz ±3 digits AC Peak h.

  • Page 12: Measurement Techniques

    D. MEASUREMENT TECHNIQUES 1. Controls and Functions: Push Buttons TRIM Activates TRIM, PEAK and HDR functions (Except on Frequency Range). FUNC Toggles between AC and DC volts, amps and or functions. Activates manual ranging. Hold in for 2 seconds to return to autorange.
  • Page 13 1. Controls and Functions (cont.): Rotary Switch Turns the 296 completely off. Used to measure AC and DC volts. Ω Used to measure resistance and use the continuity buzzer. Used to measure diodes. Used to measure the frequency of the current through the jaws.
  • Page 14 (+) terminal of the battery. • Connect the black test lead to the negative (-) terminal of the battery. • Reconnect power to the circuit and read the voltage on the 296. 561.8187 information@itm www. .com...

  • Page 15: Step By Step Procedures

    4. Set rotary switch to the V range. 5. Push FUNC button so AC does not show on LCD. 6. Connect test leads to circuit to be measured. 7. Reconnect power to circuit to be measured. 8. Read the voltage on the 296. Optional Modes • TRIM: Push TRIM button to stabilize reading.
  • Page 16 Application Notes Disconnect power from the terminal block, find the fuse or circuit breaker that controls the block and turn it off. Set up the meter following the steps under “Measurement Procedure” on page 17. Then proceed with the following: •...
  • Page 17 5. Press the FUNC button until AC is on LCD. 6. Connect test leads to circuit to be measured. 7. Reconnect power to circuit to be measured. 8. Read the voltage on the 296. Optional Modes • TRIM: Push TRIM button to stabilize reading.
  • Page 18 Measuring DC Amps CAUTION! Do not attempt to make a current measurement with the test leads. The 296 measures the current by clamping the jaw around one conductor (wire). Clamping around more than one wire will result in erroneous readings.
  • Page 19 Application Notes When measuring DC Amps of a motor there are two types of measurements that can be made, running current and in-rush or start-up current. Start-up current will usually be much higher than running current. Set up the meter following the steps under “Measurement Procedure”...
  • Page 20 Measuring AC Amps CAUTION! Do not attempt to make a current measurement with the test leads. The 296 measures the current by clamping the jaw around one conductor (wire). Clamping around more than one wire will result in erroneous readings.
  • Page 21 Application Notes When measuring AC Amps of a motor there are two types of measurements that can be made, running current and in-rush or start-up current. Start-up current will usually be much higher than running current. Set up the meter following the steps under “Measurement Procedure”...
  • Page 22 Application Notes (Resistance) When measuring resistance of a motor, make sure the power is disconnected prior to testing. Set up meter following steps under “Measurement Procedure” on page 20, and proceed with the following: • Connect the red test lead to one power input line of the motor and the black test lead to the other power input line of the motor.
  • Page 23 2. Plug black test lead into the COM input jack. 3. Plug red test lead into V/Ω input jack. 4. Set the rotary switch to the Ω function. 5. Connect test leads to circuit to be measured. 6. Read the resistance value on the 296. Optional Modes • HOLD: Freezes the reading on the LCD.
  • Page 24 f. Continuity Buzzer WARNING! Do not attempt to make continuity measurements with circuit energized. Instrument set-up: FUNC. BLACK TEST LEAD TEST LEAD READING READING Ω V/Ω 0.001KΩ 4.000KΩ Measurement Procedure: 1. Disconnect power to circuit to be measured. 2. Plug black test lead into the COM input jack. 3.
  • Page 25 g. Measuring Diodes CAUTION! Do not attempt to make diode measurements with circuit energized. The only way to accurately test a diode is to remove it completely from the circuit before attempting to measure it. Instrument set-up: FUNC. BLACK TEST LEAD TEST LEAD READING READING V/Ω...
  • Page 26 Measuring Frequency CAUTION! Do not attempt to make frequency measurements with test leads. The 296 measures the frequency by clamp- ing the jaw around one conductor (wire). Clamping around more than one wire will result in erroneous read- ings.
  • Page 27 (Average sensing mode for ACV, ACA, OHM, Diode and Continuity.) Press the TRIM button when measuring unstable signals to stabilize the reading. The 296 will aver- age the measured value approximately every 1.25 seconds to obtain a clearer picture of the current or voltage being measured.

  • Page 28: Accessories

    Disable Sleep Mode 1. Set the 296 to the OFF position. 2. Push and hold down the HOLD button while turning the rotary switch to the desired function. 3. Release the HOLD button. 4. Check the LCD to see if the HOLD function is activated.

  • Page 29: Maintenance

    F. MAINTENANCE 1. Battery Replacement: The 296 will display a bat- tery symbol when the internal 9 Volt battery needs replacement. The battery is replaced as follows: a. Disconnect and remove all test leads from live circuits and from the 296.

  • Page 30: Trouble Shooting Guide

    G. TROUBLE SHOOTING GUIDE Problem Probable Causes Does not power up • Dead or defective battery • Broken wire from battery snap to PCB Won’t display current readings • Open fuse • Open test lead • Improperly connected to circuit under test All functions except ohms read high •...
  • Page 31 561.8187 information@itm www. .com...
  • Page 32 296 SPECIFICATIONS ±0.75% Basic DCV Accuracy Func. Range Res. 0.01V 400V 0.1V 600V 0.01V 400V 0.1V 600V 0.01A 400A 0.1A 700A 400A 0.1A 700A 0.001k 0.01k Frequency 1KHz 0.1Hz 10KHz 0.001KHz Continuity Test Voltage Max Test Current < 100 (100 digits)

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