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User's Manual
Notes
1.
When the input signal exceeds the current range, the multimeter will prompt
overload message "OL".
2. Except DCV 1000V and ACV 750V, all scales are allowed to exceed the range by 20%.
3. The range selection defaults to Auto, when the instrument is powered up, after a remote
reset, and the default factory setting is enabled.
4. It is recommended that the user selects automatic range when the measurement range is
unpredictable, that can protect the instrument and obtain more accurate data.
5. For the dual display function, the measurement ranges of the primary and secondary
displays are similar and cannot be changed independently.
6. The ranges are fixed for testing connectivity and checking the diode. The range for
continuity is 2kΩ and the range for diode check is 4V.
7. There are some special requirements for current range switching. The mA input terminal
has a maximum range of 200mA (including DCI and ACI, the following two points are the
same), and A input terminal is used for 2A and 10A scale, so it the current exceeds 200mA,
that need to be input from A terminal, and if the current is smaller than 200mA, it is
recommended that input from mA terminal. There is no automatic switching between two
different current inputs.
8. The current measurement is provided with overcurrent protection by two fuses.
9. The voltage measurement must not be overloaded for long time, so as not to cause
damage to the circuit.
Integral time Time and Resolution
The integral time refers to the sampling period of the input signal by the instrument
analog/digital converter during the measurement. The longer the integral time, the slower the
measurement rate and the higher the measurement resolution; the shorter the integral time,
the faster the measurement rate and the lower the measurement resolution. The integral time
applies to the DCV, DCI, 2WR and 4WR measurement functions.
The UT8806E sets the integral time in terms of the number of power cycles, and the unit is
PLC. The default integral time of the multimeter at power-on is 10 PLC, and the user can
manually select the integral time with 0.006 PLC, 0.02 PLC, 0.06 PLC, 0.2 PLC, 1 PLC, 10 PLC,
and 100 PLC.
Instruments.uni-trend.com
UT8806E Desktop Digital Multimeter
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