Unit UT371 Manuel utilisateur
Model UT371/372
OPERATING MANUAL
TABLE OF CONTENTS
TITLE PAGE
3
3
4
5
6
7
8
9
11
13
13
15
17
Overview
Unpacking Inspection
Safety Information
Rules For Safe Operation
International Electrical Symbols
The Meter Structure
Functional Buttons
Setup
Display Symbols
Measurement Operation
A. RPM Measurement
B. Counts
C. Data Transferring and USB
Model UT371/372: OPERATING MANUAL
1
TABLE OF CONTENTS
TITLE PAGE
18
18
19
20
20
20
21
21
22
Specifications
A. General Specifications
B. Environmental Requirements
Accuracy Specifications
A. RPM
B. Counts
Maintenance
A. General Service
B. Replacing the Battery
Model UT371/372: OPERATING MANUAL
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Model UT371 and 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.
Open the package case and take out the Meter. Check the following items carefully
to see any missing or damaged part:
Description
English Operating Manual
Reflecting Tape
USB Interface Cable (UT372 only)
Software(UT372 only)
1.5V Battery (LR6)
Overview
This Operating Manual covers information on safety and cautions. Please read the
relevant information carefully and observe all the Warnings and Notes strictly.
Item
1
2
3
4
5
Qty
1 piece
10 pieces
1piece
1 piece
4 pieces
Unpacking Inspection
Model UT371/372: OPERATING MANUAL
3
In the event you find any missing or damage, please contact your dealer immediately.
This Meter complies with the standards IEC61010-031, IEC61326, : in pollution
degree 2
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.
International electrical symbols used on the Meter and in this Operating Manual are
explained on page 6.
Safety Information
Model UT371/372: OPERATING MANUAL
4
Rules For Safe Operation
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 appears. When the
battery is between 4.5V ~4.8V, the battery indicator appears. When the
battery is between 4.3V ~ 4.5V, battery indicator blinking, the Meter will be
turned off after 1 minute.
When opening the battery door, must make sure the Meter is power off.
When servicing the Meter, use only the same model number or identical
electrical specifications replacement parts.
The internal circuit of the Meter shall not be altered at will to avoid damage
of the Meter and any accident.
Model UT371/372: OPERATING MANUAL
5
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
Deficiency of Built-In Battery
Conforms to Standards of European Union
Model UT371/372: OPERATING MANUAL
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Figure 1
The Meter Structure (see figure 1)
Tachometer Light Source.
LCD Display.
USB Port (UT372 only)
Housing
Functional Buttons
Model UT371/372: OPERATING MANUAL
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Functional Buttons
Below table indicated for information about the functional button operations.
Button Operation Performed
l Press once to turn the meter on.
l Press and hold for 1 minute to turn it off.
l When measuring RPM and Counts, press once to enter the Hold mode. Press it again
to exit hold mode.
l When measuring RPM and Counts, press it to toggle between RPM and Counts feature.
l Press and hold for 1 minute to enter setup feature, the LCD displays USB. After that,
each press to step through LED / SR / AOFF / CLK / exiting setup feature to enter RPM
or Count. You could press ON/OFF button to exit setup mode and returning to normal
measurement mode at any time.
l Press this button to choose maximum reading, minimum reading, average reading,
zerong, Tune
l Under Tach measurement mode, press M/M/A button to select MAX/MIN/AVE and
normal value measurement,
After entering USB/LED/SR/AOFF/CLK mode, press this button to setup 0 or 1 and time.
l In the RPM or COUNT mode.press and hold the button for more than second the
relative time will be clear and execute HOLD function In the COUNT mode pressing the
button will be clear.
ON/OFF
R/C
M/M/A
Model UT371/372: OPERATING MANUAL
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Setup
A. USB setup
Press R/C button to select USB feature after turning on the Meter. Then press M/M/A
button to setup 0 or 1. 0 means turn the USB off. 1 means enable the USB feature.
B. LED setup
Press R/C button to select LED feature after turning on the Meter. Then press M/M/A
button to setup 0 or 1. 0 means turn the LED laser off. 1 means enable the LED
laser feature.
C. SR sampling rate setup
Press R/C button to select SR feature after turning on the Meter. Then press M/M/A
button to setup 005 ~ 255. Press and hold M/M/A button to access quick setting.
D. AOFF setup
Press R/C button to select AOFF feature after turning on the Meter. Then press
M/M/A button to setup 0 or 1. 0 is disable auto power off feature. 1 means enable
auto power off feature,
After enable auto power off feature, the Meter will be auto power off after ten minutes
Model UT371/372: OPERATING MANUAL
9
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