DIGITAL TACHOMETER MANUAL

TM- 7020

CONTACT TYPE
DIGITAL TACHOMETER
INSTRUCTION MANUAL
TM-7020Thank you for purchasing our digital tachometer.
Please read this instruction manual carefully before using toensure the correct usage of this device.
Please keep this instruction manual for future reference.

Safety P reca u tio n s
For safe usage of this device, observe all statements regarding precautions
and warnings in this instruction manual.

Attention

Customer Service

LINE SEIKI CO., LTD.
Address:

37-7 Chuo-cho, 2-Chome
Meguro-ku, Tokyo 152-0001 Japan
Please visit our company website for contact details
webtrade@line.co.jp
https://lineseiki.com

Contact :E-mail :Web:

4. Auto-Power Off
After the measurement button is released, the display is held for about
3 minutes then the unit automatically turns OFF if no further measurements
are made during that time.

4. Battery Replacement

Do not use this device for any use other than as directed.
Do not use this device for measuring anything except rotational, linear or surface speed.
Do not use this device near machines that emit strong electromagnetic fields
or objects that store static electricity.
Do not drop this device or submit it to strong impact.
Do not use or store the device where it can be exposed to direct sunlight, dust,
high temperature and high humidity.
Inspect the device before conducting measurements.
See the battery case markings to ensure that the battery is properly installed.
Remove the battery when the device will not be used for a long period of time.
Do not attempt to disassemble or modify this device.
Be careful not to get pulled in by the object being measured.

1. Preparations

1. Installing the batteriesa. Press and slide down the battery cover at the back side of the main unit.
b. Install the four batteries (AAA 1.5V) noting the polarity as indicated inside.
c. After installing the batteries, replace and slide back the cover.

2. Components

Attention!
When using at high speed for contact typemeasurement, be very careful not to get pulled inby the object being measured.

Rotating Shaft

Low-Battery Indicator

Contact Detection
Indicator

Measurement Display/ min

Unit Display

LINE SEIKI

Measurement Button
Only while the measurement
button is pressed,
measurement is performed

SURFACE SPEED WHEEL( Circumference 1/10m )RUBBER TIP

Please note that misuse of this device
may lead to injury to the user or
damage to the device.

A tte n tio n

TM - 7020

TM-7020

3. Measurement

1.Taking Measurements
a. To start measuring, press the measurement button (Only while the measurement
button is pressed, measurement is performed). The " " mark will appear
confirming that the sensor is working.
b. If the measurement is out of range, "------" will appear.
2.Using the Rubber Tip
a. Use the rubber tip correctly by touching it perpendicular to the centerof the axle of the rotating object under test.
b. To measure the peripheral speed of the items such as belts, replace therubber tip with the surface speed wheel.
3.Using the Surface Speed Wheel
a. To attach the surface speed wheel, pull out the rubber tip with yourhand and press the surface speed wheel axle so that the boss of thewheel axle is inserted into the slit of the adaptor axle. Pull the surface
speed wheel gently to confirm that it does not come off.
b. When measuring the circumferential velocity, the surface speed wheel should
touch the measured object so that the surface speed wheel turns in parallel with it.
NoteIf circumference 1/10m is used, 1.0 /min reading display is equivalent to an
actual reading of 10 cm/min. If circumference 1/10y is used, 1.0 /min reading
display is equivalent to an actual reading of 1/10 y/min.

When " " appears and starts to flash at the right portion of the screen,replace the batteries. Refer to 'Installing the Batteries' for the battery
replacement procedure.
Warning ! When changing batteries, all previous data will be erased andsettings will return to the default state.
Replace all batteries with new ones.
Be careful not to mix different types of batteries - i.e. manganesebatteries and alkaline batteries together.
* The instrument cannot measure accurately after low battery indicator isdisplayed. Please replace the battery immediately.

5. Storage

When storing this device, please avoid areas which are very humid, exposed to direct sunlight, high temperature, subject to vibration, dusty,
dirty, saline, subject to organic gases.

SPECIFICATIONS (MAIN UNIT)
Measuring Range

1.0 - 6000.0 r/min

Resolution
Accuracy

0.1 r/min+_ 0.01% +_ 1 digit

Sampling Time

1.0 - 2.0 seconds

Display

Measurement Display : 6 digits, 7 segment LCD
Low-battery:
markContact Detection:
mark
Display Unit
: /minAuto Power-off
Data Hold Time

After 3 minutes from last measurement
Until the next data is definedContact type measurement : using rubber tip or
surface speed wheel
4 pcs. of AAA alkaline battery

Measuring Method
Power Supply
Battery Lifeapprox. 30 hours continuous measurement

Storage Temperature-10 - +60°C (Non-Freezing)

Operating Temperature
Operating Humidity
Dimension / Weight5 - 40°C (Non-Freezing)
35 - 85%RH (Non-Condensing)144(H) x 58(W) x 36(D)mm / 170g (Battery Included)

The battery life varies depending on battery type, storage conditions and operating
environment. It is only for reference.

MODEL

TM-7020

TM-7020 Main Unit

TM-7020K

TM-7020 Main Unit

OPTIONS
ZTM004 - SET Rubber Tip, 3 pcs.
Surface Speed
ZM4053Wheel (1/10 y), 1pc.

Rubber Tip, 3 pcs.
Surface Speed Wheel (1/10m), 1pc.
AAA Alkaline Battery, 4 pcs.
Instruction Manual
Rubber Tip, 3 pcs.
Surface Speed Wheel (1/10m), 1pc.
AAA Alkaline Battery, 4 pcs.
Instruction Manual + Carrying Case
Speed
ZM4052 Surface
Wheel (1/10 m), 1pc.
C - 7020 Carrying Case

This device conforms to the following EMC regulations:
EMI : EN61000-6-3

EMS : EN61000-6-1

RoHS

This manual is last revised on Jul. 15, 2021.
Specifications are subject to change without prior notice.
All Rights Reserved,Copyright C 2021,LINE SEIKI CO.,LTD.