270 TPI (Test Products Int), 270 Datasheet - Page 22

• 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 DC Microamps
Instrument set-up:
FUNC.
Measurement Procedure:
Optional Modes
•
•
22
D-H:
MAX/MIN:
CAUTION!
Do not attempt to make a current measurement with the test
leads connected in parallel with the circuit to be tested. Test
leads must be connected in series with the circuit. Do not
attempt to make a current measurement of circuits with more
than 600V present. Instrument damage and/or personal injury
may result. Make sure the temperature probe is NOT plugged
in during this test.
1.
2.
3.
4.
5.
6.
7.
400.0mA
COM
Disconnect power to circuit to be measured.
Plug black test lead into the COM input jack.
Plug red test lead into the
Set the rotary switch to the
Connect the test leads in series to the circuit to be
measured.
Reconnect power to circuit to be measured.
Read the current on the 270.
BLACK
TEST LEAD
Freezes the reading on the LCD.
Records minimum and maximum measure-
(See Other Features Section)
RED
TEST LEAD
V/W /mA
V/W W /m m A
MINIMUM
READING
m m A
0.01mA
function.
input jack.
MAXIMUM
READING