Lo Z Voltage Measurements; Peak Max-Min Hold Mode (Ac Only) - Extech Instruments EX360 User Manual

Lo Z Voltage Measurements
When the function switch is turned to the Lo Z
automatic voltage detection circuit to automatically determine voltage AC or DC and a low Z
(impedance) circuit* that eliminates ghost voltage complications. Refer to the Voltage
Measurements section earlier in this guide for Safety information and connection diagrams.
*The Lo Z impedance is approx. 3kΩ increasing to over 100kΩ when measuring 1000V.
1. Insert the black test lead banana plug into the negative (COM) jack and the red test lead
banana plug into the positive (V/Ω) jack.
2. Move the Function Switch to the Lo Z
3. Touch the test probe tips to the circuit under test. Be sure to observe the correct polarity
(red lead to positive, black lead to negative).
4. The meter defaults to the Auto Range mode (Auto displayed on LCD). Manual range
cannot be used in this mode.
5. Read the digital value and the bar graph representation of the measurement in the
display. The display will also indicate the proper decimal point and measurement
type/units symbols. If the polarity is reversed, the display will show (‐) minus before the
value.
6. The meter is capable of detecting AC/DC voltages to 1000V.
7. Note the voltage alert symbol
PEAK MAX‐MIN HOLD Mode (AC only)
In the PEAK HOLD mode the meter records MAX and MIN measurement values. When the
measurement exceeds a recorded MAX or MIN value, the meter replaces the existing value
with the newer value.
1. Press and hold the PEAK button for at least two seconds. PEAK MAX MIN will be displayed
and the meter will begin recording MAX and MIN values.
2. A short press of the PEAK button will show the MAX recorded reading.
3. Another short press of the PEAK button will show the MIN recorded reading.
4. Press the PEAK button again to view real time readings while MAX MIN recording
continues in the background.
5. To pause MAX MIN recording, press the H button. The display will freeze and the HOLD
icon will appear. Press H again to return to real time readings (with MAX MIN recording
continuing in the background)
6. To exit the PEAK HOLD MAX MIN mode, press and hold the PEAK button for > 2 seconds.
The meter will return to normal operation and the PEAK MAX MIN icons will switch OFF.
position, the meter incorporates an
position.
when voltage is present.
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