291 TPI (Test Products Int), 291 Datasheet

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291

Manufacturer Part Number
291
Description
MANUAL DGTL CLAMP W/TEST LEADS
Manufacturer
TPI (Test Products Int)
Series
291r
Type
Digital (DMM)r
Datasheets

Specifications of 291

Includes
Battery, Case, Test Leads
Style
Clamp
Display Digits
3.75
Display Type
LCD
Display Count
4000
Function
Voltage, Current, Resistance
Functions, Extra
Continuity
Features
Hold
Ranging
Manual
Response
Average
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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ranges, specifications,
The
Value
Leader
See page 3 inside for
265, 270, 275,
265, 270, 275
275, 293, 296
Temperature
Capacitance
% Harmonic
Non-contact
Frequency
Distortion
True RMS
DC Amps
270, 275
293, 296
270, 275
270, 275
Voltage
DC µA
296
296
and features.
275
Digital Clamp-On Meter Selection Guide
Thermocouples in furnaces
and gas appliances
Heat anticipator current in thermostats
Line voltages
Control voltages
Flame safety control current
Heating element resistance
Compressor winding resistance
Contactor and relay coil resistance
Motor and compressor startup current
Motor run and start capacitors
Bar graph indicator of rapid fluctuations •
Continuity of wiring
Measure frequency
on control and line voltage
Record minimum and maximum
of measurements
Measure temperature
Measure True RMS of distorted
or non-linear signals
Measure line current
Test continuity
of circuit breakers and fuses
Measure voltage
of direct drive DC motors
Measure power supply voltage
Measure power supply current
Non-Contact Voltage Detection
*
Requires A301 or A312 adapter
296
265
Model 291 is CE only
255
HVAC/R Electrical Electronic
293
291
APPLICATIONS
Market
Selecting your Digital Clamp-On Meter
270
ACV/DCV
ACV/ACA
ACV/DCV
Function 255 265 270 275 291 293 296
DCmV
Ohms
Ohms
Ohms
Ohms
Ohms
1. Determine the maximum over voltage installation
category (CAT I ~ CAT IV) the clamp-on will be used
in and narrow your choice to those meters meeting
the requirement. The Category rating for each meter
is listed in the specifications table on page 3.
2. Narrow your choice by selecting meters with the
features required for your intended applications. For
example, if your applications require a CAT III meter
with frequency and capacitance measurement
capability, the TPI 265 ,TPI 270, or TPI 275 would
be good choices.
3. Finally, select a meter with enough range,
accuracy, and features for the tests you will perform.
For example, if you have narrowed your choice to
the TPI 265, 270, and 275 and your applications
require the capability to capture motor inrush
amperage, the analog peak hold of the 270 and 275
make them the better choice.
DCuA
DCV
DCV
DCA
ACA
ACV
ACA
CAP
REC
ACA
NCV
All
Hz
*
*
*

291 Summary of contents

Page 1

... TPI 265, 270, and 275 and your applications require the capability to capture motor inrush amperage, the analog peak hold of the 270 and 275 make them the better choice. Function 255 265 270 275 291 293 296 DCmV ACA • ACV • ...

Page 2

... TPI DIGITAL CLAMP-ON METER TERMINOLOGY >> Agency Approval: Test equipment with the mark have passed through tests and are designed with operators safety in mind. >> Auto Range: Meter automatically selects the appropriate range after the function has been selected. >> Trim Mode: A feature that stabilizes the display when measuring unstable or fast moving signals. > ...

Page 3

... CAT III CAT III CAT III 600V 600V 600V • • Pending 291 293 • • • • • • • • • • • • • • • • ...

Page 4

... Which of the TPI clamp-on meters will measure temperature? The 270 and 275 have this feature built in and the 255, 265, and 291 can measure temperature by using the optional A301 or a A312 K-type thermocouple adapters. 3. Which TPI clamp-ons can ...