270 TPI (Test Products Int), 270 Datasheet - Page 16

• Manufacturer Part Number: 270
• Description: CLAMP-ON TESTER W/DMM
• Manufacturer: TPI (Test Products Int)
• Series: 270r
• Type: Digital (DMM)r

Specifications of 270

• Includes: Battery, Case, Temperature Probe, Test Leads
• Style: Clamp
• Display Digits: 3.75
• Display Type: LCD, Bar Graph
• Display Count: 4000
• Function: Voltage, Current, Resistance, Capacitance, Temperature, Frequency
• Functions, Extra: Continuity, Diode Test
• Features: Auto Off, Hold, Min/Max, Sleep
• Ranging: Auto/Manual
• Response: Average
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined
• Other names: 290-1421; TPI 270; TPI270

Measuring Resistance
Instrument set-up:
FUNC.
W
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
5. Connect test leads to circuit to be measured.
6. Read the resistance value on the 270.
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. Make sure the tempera-
ture probe is NOT plugged in during this test.
NOTE:
To make accurate low ohm measurements, short the ends of the
test leads together and press the REL button to store the reading.
This will deduct the stored value from subsequent measurements
eliminating the test lead resistance from the reading.
D-H:
16
WARNING!
BLACK
TEST LEAD TEST LEAD
COM
Freezes the reading on the LCD.
(See Other Features Section)
RED
V/W
W
input jack.
W
MIN
READING
0.1W
function.
MAX
40.00MW
READING