270 TPI (Test Products Int), 270 Datasheet - Page 34

• 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

G. Trouble Shooting
Problem
Does not power up
Won’t display DC
microamp readings
All functions except
ohms read high
AC Volts do not read
Non-Contact Voltage
does not work
The meter beeps when
set on TEMP
AC Amps does not read
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Probable Causes
• Dead or defective battery
• Broken wire from battery
• Open fuse
• Open test lead
• Improperly connected to
• Very weak battery that will
• Very weak battery that will
• The non-contact voltage feature
• This is a reminder to remove the
• Make sure the jaw is clamped
snap to PCB
circuit under test
not turn on the low battery
indicator on the LCD
not turn on the low battery
indicator on the LCD
works best when used to test a
single wire. Make sure the arrow
on the jaw is pointed at the wire.
test leads and insert the temper-
ature probe. If a probe is insert-
ed, this is an indication the probe
is open.
around a single wire and the
device connected to the wire is
turned on.