291 TPI (Test Products Int), 291 Datasheet - Page 19

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

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

d. Measuring Resistance
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. 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
•
Do not attempt to make resistance measurements with
circuit energized. For best results, remove the resistor
completely from circuit before attempting to measure it.
NOTE:
To make accurate low ohm measurements, short the
ends of the test leads together and record the resistance
reading. Deduct this value from actual readings.
HOLD:
!
WARNING!
BLACK
TEST LEAD TEST LEAD
COM
Freezes the reading on the LCD.
RED
V/Ω
Ω
input jack.
MIN
READING
0.1Ω
Ω
function.
MAX
400Ω
READING
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