tm103 | issue 3 07/10/16
Original Language Version
© Jack sealey limited
function
range
resolution
Accuracy
duty cycle
Pulse width:>100us, <100ms
frequency width:5Hz-150Hz
sensitivity:>0.5V rms
overload protection:250V dc or ac rms
0.1%~99.9%
0.1%
±1.2% reading± 2 digits
function
range
resolution
Accuracy
temperature
sensor: type K thermocouple
overload protection: 250V dc or ac rms
-20°c~+760°c
1°c
±3% reading ±5°c/9°f
-4°f~+1400°f
1°f
function
test current
resolution
Accuracy
diode test
open cuircuit voltage: 1.5V dc typical
overload protection: 250V dc or ac rms
0.3mA typical
1mV
±10%reading±5 digits
Audible continuity
Audible threshold: Less than 150Ω; Test current: <0.3mA
overload protection: 250V dc or ac rms.
note! Accuracy is stated at 65°f to 83°f (18°c to 28°c) and less than 70% rH.
the instrument complies with:
en61010-1.
insulation:
class2, double insulation.
overvoltage category:
cAtiii 600V.
display:
4000 counts lcd display with function indication.
Polarity:
Automatic, (-) negative polarity indication.
overrange:
“ol” mark indication.
low battery indication:
the “BAt” is displayed when the battery voltage drops below the operating level.
measurement rate:
2 times per second, nominal.
Auto power off:
meter automatically shuts down after approx. 15 minutes of inactivity.
operating environment:
0 °c to 50 °c (32 °f to 122 °f) at < 70 % relative humidity.
storage temperature:
-20 °c to 60 °c (-4 °f to 140 °f) at < 80 % relative humidity.
for inside use, max height:
2000m
Pollution degree:
2
Power:
one 9V battery (PP9).
dimensions:
150 (H) x 70 (W) x 48 (d) mm
Weight: Approx:
255g.
4. operation
WArninG! risk of electrocution. High-voltage circuits, both Ac and dc, are very dangerous and should be measured with great care.
AlWAYs turn the function switch to the “off” position when the meter is not in use.
if “ol” appears in the display during a measurement, the value exceeds the range you have selected. change to a higher range.
note! on some low Ac and dc voltage ranges, with the test leads not connected to a device, the display may show a random reading.
this is normal and is caused by the high-input sensitivity. the reading will stabilise and give a proper measurement when connected to a
circuit.
4.1.
mode Button
4.1.1.
to select diode / continuity, dc / Ac Hz / %duty.
4.2.
rAnGe Button
When the meter is first turned on, it automatically goes into Auto Ranging. This automatically selects the best range for the measurements
being made and is generally the best mode for most measurements. for measurement situations requiring that a range be manually
selected, perform the following:
4.2.1.
Press the rAnGe button. the “Auto” display indicator will turn off.
4.2.2.
Press the rAnGe button to step through the available ranges until you select the range you want.
4.2.3.
Press and hold the rAnGe button for 2 seconds to exit the manual ranging mode and return to Auto ranging.
4.3.
dAtA Hold Button
the data Hold function allows the meter to “freeze” a measurement for later reference.
4.3.1.
Press the dAtA Hold button to “freeze” the reading on the indicator. the indicator “Hold” will be appear in the display.
4.3.2.
Press the dAtA Hold button to return to normal operation.
4.4.
relAtiVe Button
the relative measurement feature allows you to make measurements relative to a stored reference value. A reference voltage, current,
etc. can be stored and measurements made in comparison to that value. the displayed value is the difference between the reference
value and the measured value.
4.4.1.
Perform any measurement as described in the operating instructions.
4.4.2.
Press the relAtiVe button to store the reading in the display and the “rel” indicator will appear on the display.
4.4.3.
the display will now indicate the difference between the stored value and the measured value.
4.4.4.
Press the relAtiVe button to return to normal operation.
