Bosch GE-50576-A Bedienungsanleitung

CHECK•LINE®

BY ELECTROMATIC

MODEL GE-50576-A

BELT TENSION TESTER

Operating Manual

–1 –

TABLE OF CONTENTS

1.0 Overview .................................................................................................................. 02

2.0 GE-50576-A Components........................................................................................ 03

3.0 Display...................................................................................................................... 04

4.0 Operation Instructions .............................................................................................. 05

5.0 Set-up........................................................................................................................ 07

6.0 Noise Cancelation..................................................................................................... 08

7.0 Charging Instructions ............................................................................................... 09

8.0 Testing Belts ............................................................................................................. 10

9.0 Maintenance ............................................................................................................. 10

10.0 Technical Specications and Certications ............................................................. 11

11.0 Warranty ................................................................................................................... 12

SAFETY PRECAUTIONS

Please read this section carefully to ensure safe operation.

• Do not drop or allow GE-50576-A to be hit.

• Remove the microphone from GE-50576-A after use and place in the storage case.

• Do not use the tool near ammable substances.

• Do not use the tool near water or other liquids.

• When performing the test in vehicle, let the engine cool down before testing.

CAUTION!

• Do not store in a humid area.

• Do not place heavy objects on the GE-50576-A.

• Do not wash the tool with liquid cleaners. Wipe with a clean, dry cloth.

• Store the tool in an area away from heat or direct sunlight.

• GE-50576-A goes into sleep mode after 5 minutes without operation, but does

not power off. Users should perform the power-off operation manually after

testing is complete.

– 2 –

1.0 OVERVIEW

This manual explains the operation of GE-50576-A. Please read it carefully before using

the GE-50576-A.

The GE-50576-A Acoustic Belt Tension Tester enables belt tension measurement with

no direct contact. It measures the belt tension of engine accessory belt systems and

Electronic Power Steering (EPS) steering racks. When the microphone is held close to

the belt, and the belt is plucked, belt vibration is captured by the microphone, and the

frequency is displayed.

For more detailed procedures, please consult published service information for the

vehicle or component being serviced.

1.1 Complete Kit

The GE-50576-A is

supplied as a complete

kit that contains the

components outlined

in the table below and

identied in the photo.

No. Item No. Description Model Name / Speciﬁcation

1 GE-50576-05 Li-Ion Battery 3.7V, 800mA

2 GE-50576-06 Storage Case Material: Plastic / Dimensions: 160 x 100 x 60 mm

3 GE-50576-01 Accoustic

Belt Tension Tester

Dimensions (approx): 10 x 75 x 20 mm

4 GE-50576-04 Touch Pen General Resistance touch Pen

5 GE-50576-03 USB Cable General USB Cable

6 GE-50576-02 Microphone Uni-Directional Type, 30CM Flexible Type

7 GE-50576-07 LCD Protection

Film (not shown)

Protection Film / 4.3 inch LCD

8 GE-50576-08 User Manual

(not shown)

User Operation Manual

9 GE-50576-09 Protective Boot Dimensions (approx): 10 x 75 x 20 mm

– 3 –

2.0 COMPONENTS

No. Name Description Remark

1 Microphone Flexible shaft directional microphone

2 MIC Connector Nut type microphone connector

3 Tool Body Tool Body

4 DC Adaptor Jack AD/DC converter adaptor jack

DC 12V, 2A output is recommended when USB

charging is not available

• Power On: Blinks Green for

4 seconds, then turns solid Green

• Normal Status: Solid Green

• Red Blink: Sleep mode – up to

5 minutes

• Green/Red Blink: Timed out –

Power must be turned Off, then

back On

5 Power LED LED displays power status • Power on: Blinks Green for

4 seconds, then turns solid Green

• Normal status: Solid Green

• Red Blink: Sleep mode (up to

5 minutes)

• Green/Red Blink: Timed out –

Power must be turned Off, then

back On

6 Charge LED Displays charge status. Note: If the unit is powered

on while being charged (via DC adapter or USB

cable) the charge LED turns green.

• Red: Charging

• Blinking Red: Low Battery

• Green: Charge complete

7 USB Connector USB connection port for charging

& rmware update

8 Update Button Depress the update button through the hole in the

case when software updates are required.

9 Touch LCD Resistive touch panel LCD display 3.4", 480RGB, 272 dots

10 Start Button Mechanical start button Operation is the same as

on the main display

11 Power Button Mechanical Power on/off (Sliding type)

• Power On : Slide left to turn on

• Power Off : Slide right to turn off

• Auto Sleep mode: Automatic LCD power-off

after 5 minutes without operation. Wakes up when

the screen is touched.

Sleep mode is not the same as

Power Off. The processor is

active, but the display is off.

– 4 –

3.0 DISPLAY

3.1 Booting Screen

3.2 Main Screen

3.3 Set-up Selection Screen

3.4 Min/Max Range Setting

– 5 –

4.0 OPERATION

2. Slide the power button to turn on the unit.

The Power LED will blink, then turn solid

green.

1. Remove the microphone from the storage

case and carefully connect it to the

GE-50576-A.

3. In normal operation, the Booting Screen is

displayed immediately after powering on.

Please minimize background noise as much

as possible during testing.

5. Touch Start button on the screen or push

Start button on the tester body. The

button image will change to a red square,

and a tone will sound.

4. The Main Screen is displayed. Place the

microphone close to the belt (approx. 1cm)

without bending the microphone shaft

excessively.

To ensure proper readings, some values

may need to be adjusted to reduce the

impact of background noise. Refer to

Section 7, Noise Cancelation for

more information.

– 6 –

6. Pluck the belt (while minimizing

background noise) and the result will display

on the screen.When a reading is registered

on GE-50576-A, a tone will sound, and the

start button image changes from .

7. Please wait to perform the next pluck

until the image changes back to . When

the start/stop button is ready, pluck the belt

again. GE-50576-A displays the result and

calculated average.

8. After three readings, the start button image

changes to again. To re-test, touch the start

button on the screen, or push the mechanical

start button on the tool body.

9. GE-50576-A can be paused at any time

during testing by touching the start button

on the screen, or pressing the mechanical

start button on the tool body.

10. To re-set GE-50576-A, touch or press either

start button for more than 3 seconds. All

current results will be cleared, and the unit

will go back to the rst step.

– 7 –

5.0 SET-UP

1. To go to the set-up menu, touch the icon on

the right .

2. The Set-up menu includes two settings,

min/max value and touch screen

re-calibration.

The rst button allows adjustment of

the tested frequency limits. The min/max

threshold can be adjusted from 100~500 Hz

by touching the left/right. A single touch

will move +/- 1 increment, and holding the

arrow will move +/- 5 increments.

When the desired values are displayed,

touch the center button to save

these settings. A tone will sound to indicate

a successful save. Touch the right button

to return to the default setting.

Touch, the left button to return to

the previous menu,

To re-calibrate the touch screen, touch the

second button on the set-up screen .

When a “+” symbol appears on the

display, press the center of the “+”. After

5 steps for each corner and the center, the

display will return to the set-up menu.

WARNING!

GE-50576 units are calibrated before shipment. They do not require recalibration unless

the touch screen is not working properly (mis-aligned). If recalibration is needed use a

small rm-pointed device such as an ink-pen rather than the stylus pen this is included

with the tool (GE-50576- 04). This pen is soft pointed and will not re-calibrate properly.

– 8 –

6.0 NOISE CANDELLATION

1. To reduce the effects of background noise, the frequency range specication of the

belt being measured must be known. Please refer to published service information

for the vehicle or component being serviced.

2. If possible, make the measurements in a

quiet area.

3. If background noise causes interference,

touch the set-up button and choose the

Min/Max setting menu

4. Adjust the min/max range as follows;

• Min: Service information specication –100Hz

• Max: Service information specication +100Hz

5. Perform the test again with normal

background noise, and adjust threshold

again to a tighter range if background noise

continues to be an issue.

• Min: Service information specication – 50Hz

• Max: Service information specication +50Hz

– 9 –

7.0 CHARGING INSTRUCTIONS

Note: As the battery level decreases, the battery

status indicator changes from four segments

(full) to zero segments (empty).

Step 1: Turn off the power to the tool.

Step 2: Connect the USB cable to the USB

connector on the bottom of the tool body.

When connecting to the USB port, the end

of the cable should be inserted correctly to

the lap-top computer or USB hub.

Some regions may require a DC adapter.

In these regions, connect the adaptor to the

adaptor jack on the bottom of the tool body.

Note: If the unit is powered on while being

charged (via DC adapter or USB cable), the

charge LED will turn green.

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