UNI-T UT372 Operating Manual

Overview
This Operating Manual covers safety information related to the Tachometer.
Please read the relevant information carefully and observe all the Warnings
and Notes strictly.
Model UT371/UT372 is a stable, safe and reliable digital non - contact Tachometer.
This Tachometer can measure RPM and counts. RPM range is 10 ~ 99999
while counts range is 0 ~ 99999.
Unpacking Inspection
Open the package case and take out the Meter. Check the following items
carefully for any missing or damaged part:
Item Description
1 English Operating Manual
2 Reflecting Tape
3 USB Interface Cable (UT372 only)
4 Software(UT372 only)
5 1.5V Battery (LR6)
In the event you find any missing or damaged item, please contact your dealer
immediately.
Safety Information
This Meter complies with IEC61010-031 and IEC61326 standards as well as
Pollution Degree 2 requirement
Use the Meter only as specified in this operating manual, otherwise the
protection provided by the Meter may be impaired.
In this manual, a Warning identifies conditions and actions that pose hazards to
the user, or may damage the Meter or the equipment under test.
A Note identifies the information that user should pay attention to.
Warning
Before using the Meter inspect the case. Do not use the Meter if it is
damaged or the case (or part of the case) is removed. Look for cracks or
missing plastic.
Do not use or store the Meter in an environment of high temperature,
humidity, explosive, inflammable and strong magnetic field. The
performance of the Meter may deteriorate after dampened.
Do not point laser directly at eye.
Replace the battery as soon as the battery indicator
When the battery is between 4.5V ~4.8V, the battery indicator
When the battery is between 4.3V ~ 4.5V, battery indicator
the Meter will be turned off after 1 minute.
When opening the battery door, make sure the Meter is powered off.
When servicing the Meter, use only the replacement parts with the
same model or identical electrical specifications.
The internal circuit of the Meter shall not be altered at will to avoid
damage of the Meter and any accident.
Soft cloth and mild detergent should be used to clean the surface
of the Meter when servicing. No abrasive and solvent should be
used to prevent the surface of the Meter from corrosion, damage
and accident.
Turn the Meter off when it is not in use and take out the battery
when not using for a long time.
Constantly check the battery as it may leak when it has been using
for some time, replace the battery as soon as leaking appears.
A leaking battery will damage the Meter.
International Electrical Symbols
Warning. Refer to the Operating Manual
Low Battery Indication
Conforms to Standards of European Union
The Meter Structure
(See Figure 1)
Tachometer Light Source.
LCD Display.
Qty
1 piece
USB Port (UT372 only)
10 pieces
Housing
1piece
1 piece
Functional Buttons
4 pieces
Functional Buttons
The table below offers information about the functional button operations.
Button Operation Performed
Press once to turn the meter on.
Press and hold for 1 second to turn it off.
ON/OFF
When measuring RPM and Counts, press once to enter the Hold mode. Press it
again to exit hold mode.
When measuring RPM and Counts, press it to toggle between RPM and Counts
feature.
Press and hold for 1 minute to enter setup feature, the LCD displays USB. After that,
R/C
each pressing steps through LED / SR / AOFF / CLK / settings, then exits the setup
and accesses RPM or Count, You could press ON/OFF button to exit setup mode
and return to normal measurement mode at any time.
Press this button to choose Max./Min./Average/Zeroing/Setting options.
M/M/A
Under Tach measurement mode, press M/M/A button to select MAX/MIN/AVE and
normal measurements.
After entering USB/LED/SR/AOFF/CLK mode, press this button to set to 0/ 1 and
adjust the time.
Setup
appears.
A. USB
appears.
Press R/C button to select USB feature after turning on the Meter. Then press
blinking,
M/M/A button to set to 0 or 1. 0 represents disabling USB and 1 for enabling USB.
B. LED
Press R/C button to select LED feature after turning on the Meter. Then press
M/M/A button to set to 0 or 1. 0 represents disabling LED laser and 1 for
enabling the laser.
C. SR (Sampling Rate)
Press R/C button to select SR feature after turning on the Meter. Then press
M/M/A button to adjust within 005 ~ 255. Press and hold M/M/A button to
access quick setting.
D. AOFF
Press R/C button to select AOFF feature after turning on the Meter. Then
press M/M/A
1 for enabling the function.
With the function enabled, the meter will automatically power off if buttons are
inactive for 10minutes. Press ON/OFF again to wake up the meter.
E. CLK
Press R/C button to select CLK feature after turning on the Meter. Then press
M/M/A button to set to 0 or 1. 0 is for h:m time format and 1 for m:s format.
Display Symbols (see figure 2)
Figure 1
Number
1
2
3
4
5
6
7
8
9
10
11
12
button to set to 0 or 1. 0 represents disabling auto power off and
Figure 2
Meaning
Unit of Tachometer
Unit of Counts
Time
The battery is low.
Indicator of Sleep Mode
Measurement of RPM and Counts
Data Hold is on
Display of Maximum reading
Display of Minimum reading
Display of Average reading
USB is on
Display of Measurement reading