270 TPI (Test Products Int), 270 Datasheet - Page 17

• 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 AC Amperage
Instrument set-up:
FUNC.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Set rotary switch to
3. Clamp the jaws around one conductor of the circuit to
4. Reconnect power to circuit to be measured.
5. Read the current on the 270.
Optional Modes
•
•
•
be measured. For best results, center the wire in the
jaw.
D-H:
MAX/MIN:
ments
P-H:
CAUTION!
Do not attempt to make a current measurement with the
test leads. The 270 measures the current by clamping the
jaw around one conductor (wire). Clamping around more
than one wire will result in erroneous readings. Make sure
the temperature probe is NOT plugged in during this test.
BLACK
TEST LEAD TEST LEAD
NOT USED NOT USED
Freezes the reading on the LCD.
Records minimum and maximum measure-
Displays peak amperage.
(See Other Features Section)
RED
function.
MIN
READING
0.01A
MAX
READING
400A
17