291 TPI (Test Products Int), 291 Datasheet
Specifications of 291
Available stocks
291 Summary of contents
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... Digital Clamp-on Meter Amp Plus Instruction Manual 291 ...
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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..................6 2. Product Applications ..................7 3. Specifications..............................8 D. MEASUREMENT TECHNIQUES 1. Controls and ...
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... It is backed year limited warranty. Please remember to complete and return your product warranty registration card. 2. Product Description The 291 is a hand-held manual ranging clamp-on DMM. The 291 is an affordable choice offering measurements in all basic electrical functions. • Bar Graph • Peak Mode • ...
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... EC Declaration of Conformity This is to certify that TPI Model 291 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 the following standards: EN 50081-1 EN 50082-1 EN 61010-1 EN 61010-2-031 ...
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... Do not attempt to measure unknown voltages or components until a complete understanding of the circuit is obtained. GENERAL GUIDELINES ALWAYS • Test the 291 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. • ...
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INTERNATIONAL SYMBOLS CAUTION: RISK OF ELECTRIC SHOCK AC (Alternation Current) DC (Direct Current) REFER TO INSTRUCTION MANUAL ! GROUND DOUBLE INSULATION EITHER TECHNICAL DATA 1. Features and Benefits Agency 4000 Count Improves the resolution on all ...
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... Product Applications Perform the following tests and/or measurements with the 291 and the appropriate function: HVAC/R ACA • Heat anticipator current in thermostats. ACV • Line voltage. ACV or DCV • Control circuit voltage. OHMS • Heating element resistance (continuity). OHMS • Compressor winding resistance. ...
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Specifications IEC 1010 Over Voltage: CAT II - 1000V CAT III - 600V Pollution Degree 2 a. DCV Range Resolution 40V 0.01V 400V 0.1V 600V 1V b. ACV Range Resolution 400V 0.1V 750V 1V c. ACA Range Res. 400A ...
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OHM (Resistance, ) Range Res. 400Ω 0.1Ω f. Continuity Buzzer Test Voltage Threshold 3V < 50Ω (100 digits) h. General Specifications Max. Volt. between any Input and Ground Display Type Operating Temp. Storage Temp. Relative Humidity Power Supply Battery ...
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... A 10 Activates the Peak Hold function (ACA only.) Holds the reading on the display until the button is pushed a second time. Turns the 291 completely off. Used to measure DC volts. Used to measure AC volts. Used to measure resistance and use the continuity buzzer. Used to measure AC amps. ...
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Controls and Functions: (cont.) Input Jacks COM V/ Ω Ω Black test lead connection for ACV, DCV, Ω, Continuity Buzzer and Diode Test functions. Red test lead connection for all ACV, DCV, Ω , Continuity Buzzer and Diode Test ...
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... Connect the red test lead from the meter to the positive (+) 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 291. 12 ...
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... Plug red test lead into the V/Ω input jack. 4. Set rotary switch to the appropriate V range. 5. Connect test leads to circuit to be measured. 6. Reconnect power to circuit to be measured. 7. Read the voltage on the 291. Optional Modes • HOLD: Freezes the reading on the LCD. • PEAK: Measures the peak voltage ...
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Reconnect power to the block and read the voltage on the meter. The reading should be approximately 110V to 130V. • Disconnect power from the block and move the red wire ...
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... Plug black test lead into COM input jack. 3. Plug red test lead into V/ 4. Set the rotary switch to the appropriate V function. 5. Connect test leads to circuit to be measured. 6. Reconnect power to circuit to be measured. 7. Read the voltage on the 291. Optional Modes • HOLD: Freezes the reading on the LCD. • PEAK: Measures the peak voltage ...
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... Measuring AC Amps CAUTION! Do not attempt to make a current measurement with the test leads. The 291 measures the current by clamping the jaw around one conductor (wire). Clamping around more than one wire will result in erroneous readings. Instrument set-up: FUNC. BLACK TEST LEAD TEST LEAD ...
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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 ...
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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 19, and proceed with the following: • Connect the red test lead ...
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... Plug black test lead into the COM input jack. 3. Plug red test lead into V/ 4. Set the rotary switch to the 400 5. Connect test leads to circuit to be measured. 6. Read the resistance value on the 291. Optional Modes • HOLD: Freezes the reading on the LCD. ...
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Continuity Buzzer WARNING not attempt to make continuity measurements with circuit energized. Instrument set-up: FUNC. Ω Measurement Procedure: 1. Disconnect power to circuit to be measured. 2. Plug black test lead into the COM input jack. 3. ...
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... Peak Mode Set the 291 to either the 400 or 700 ACA range and allow the reading on the LCD to settle down to zero. Clamp the jaw around one wire of the device the peak current measured from and again allow the LCD to settle down to zero. Apply power to the device and read the initial current draw by the device being measured ...
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... F. MAINTENANCE 1. Battery Replacement: The 291 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 291. b. Loosen the screw from the back of the 291 battery cover ...
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G. TROUBLE SHOOTING GUIDE Problem Does not power up Won’t display current readings All functions except ohms read high AC Volts do not read Probable Causes • Dead or defective battery • Broken wire from battery snap to PCB • ...
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... Fax: 503-520-1225 tpiusa@msn.com Test Products International plc 2 Newcourt Business Park Perry Road Harlow, Essex CM18 7PR England Tel: 01279 439647 • Fax: 01279 450553 L291M • 12/1/97 copyright © 1997 Test Products International, Inc. (also see pages 8-9) Res. 0.01V 0. ...