GAOTek Vibration Meter With Data Storage (Auto Power Off)

This Vibration Meter with Data Storage (Auto Power Off) can stores 1999 groups of data and widely used in Industrial measurement such as Machine manufacturing, electric power and metallurgy etc.

GT00YS00ZY

Description

Overview

GAOTek Vibration Meter with Data Storage (Auto Power Off) can stores 1999 groups of data and widely used in Industrial measurement such as Machine manufacturing, electric power and metallurgy etc. The device comes with a portable vibration meter which applies to the normal vibration measurement of mechanical equipment. It provides the USB communication function. This GAOTek Vibration meter is equipped with long and short probes for various field measurements. It adopts the high sensitivity probe which makes the measurements more accurate. The device offers alkaline battery with a Power Off circuit. It complies with CE standards.

Key Features

  • Adopts high-sensitive probe with accurate measurement
  • LCD provides intuitive display of measurement value and measurement status
  • Equipped with a long and short probe, applicable to measurement in different fields.
  • Can measure acceleration, velocity, and shift.
  • Can select different vibration frequency property
  • LCD backlight function
  • Maximum value display function
  • USB communication function
  • Equip with a magnetic chuck, used to test when it is not convenient to hold
  • Data hold function
  • Data storage function
  • Low electricity indication function
  • Automatic power-off function

 

 

 

Technical Specifications

Vibration Collection Piezoelectric Accelerometer
Acceleration Measurement Scope 0.1 m/s2 ~ 199.9 m/s2 (peak value)
Velocity Measurement Scope 0.01 cm/s ~ 19.99 cm/s (true valid value)
Displacement Measurement Scope 0.001 mm ~ 1.999 mm (peak –peak value)
Acceleration Frequency  10 HZ ~ 10 kHz
Velocity Frequency  10 HZ ~ 1 kHz
Displacement Frequency  10 HZ ~ 500 HZ
Accuracy ± (5 % +2)
LCD Display 3 1/2 bit digit display
LCD Size  2.24 in x 1.46 in (57 mm x 37 mm)
Display Refresh Period 1 second
Power Supply 9 V alkaline battery
Power-off Circuit ≤ 1 uA
Working Current ≤ 25 mA
Automatic Shut-off Automatic shut-off after about 3 minutes of non-operation
Battery  Life 20 hours of continuous use
Working Temperature 32 oF ~ 122 oF (0 oC ~ 50 oC)
Working Humidity 20 % RH ~ 80 % RH
Storage Temperature – 4 oF ~ 140 oF (-20 oC ~ 60 oC)
Battery Electricity Indication Battery voltage ≤ 7 V
Indicate low voltage symbol
Elevation 6561.68 ft. (2000 m)
Weight 0.804 lbs. (365 g)
Dimension 6.53 in X 3.14 in X 1.18  in (166 mm x 80 mm x 30 mm)

Additional Information

Accessories

  • Home Computer
  • Handle accessory machine
  • 9 V Battery
  • Long probe
  • Short probe
  • Magnetic chuck
  • User Manual

Instructions about product major components

  • POWER key: press the key until power on, and keep pressing, LCD will hold full display 1second. Stop pressing, it starts working, press key POWER again to power off.
  • Key A : Acceleration measurement
  • Key V : Velocity measurement
  • Key D : displacement measurement
  • HOLD key: HOLD data; press it again to cancel holding data.
  • MAX key : MAX display the maximum value
  • Key: open or close backlight
  • READ key: check record data
  • CLEAR / ▲ key: Delete record data; data upturning, USB communication,
  • automatic power-off and storage time setting
  • REC key: data storage
  • MENU key: menu function set
  • ▼ key: Data down turning, USB communication, automatic power-off and
  • storage time setting
  • ENTER key: confirm

①LCD (liquid crystal display)
②Sensor connecting wire
③Probe (long & short probe and magnetic suction pad for option)

LCD Display

  1. Battery symbol: indicates present remaining electricity. Four grades:
    3 bars: sufficient electricity
    2 bars: rather sufficient
    1 bar: electricity will be depleting, please replace battery
    Empty: electricity has depleted, you have to replace battery. The battery symbol shall flicker.
  1. 2. aP: acceleration indicator
  2. Vrms: velocity indicator
  3. dp-p: displacement indicator
  4. : Backlight indicator
  5. M/s2: acceleration unit indicator
    In velocity measurement, LCD display the velocity unit m/s
  6. cm/s: velocity unit indicator
  7. mm: displacement unit indicator
  8. Data record number display area
  9. 10-500 Hz: 10 Hz-500 Hz indicator
  10. 10-1 kHz: 10 Hz-1 kHz indicator.
  11. HOLD: reading hold measurement
  12. 10-10 kHz: 10 Hz-10 kHz indicator
  13. DATA: data storage indicator
  14. : Automatic power-off function indicator
  15. USB: USB indicator
  16. MAX: maximum value measurement indicator
  17. Measurement data value display area

Select test method

Please select test method based on real status, four statuses:

  1. Use short(s) probe to measure: it is installed with the machine and applicable to wide scope vibration measurement; it can acquire effective response numerical value, as shown in the following illustration
  2. Use long (L) probe to measurement: it is an accessory in a package, mainly used in rather narrow or special object area, with quick response, as shown in the following illustration
  3. Use magnetic chuck to measure: it is an accessory in a package, mainly used in plain area of iron objects, for instance, elevator etc. as shown in the following illustration
  4. Remove hardware probe to measure: used in plain object surface measurement to acquire stable data, as shown in the following illustration.

Battery installation and check

Install battery:

  1. Hold apparatus, press battery door with right thumb, open battery door from the arrow-pointed direction, as shown in the following illustration.
  2. Put 9V (G6F22 6F22) battery into battery holder correctly, aware of battery polarity and then close battery holder door, as shown in the following illustration.

Power on and check battery status

Press POWER key to power on. As shown in the following illustration:

Press the key until LCD hold full display 1 second, stop pressing it to start working with fault status being acceleration measurement mode, USB failure to communicate and automatic power-off status; if LCD screen displays symbol  or , please replace battery timely as shown in the following illustration.

Press POWER key to power off immediately.

Function operation instruction

1)  Acceleration measurement:

  1. Press key A to enter into acceleration measurement mode with fault status being acceleration measurement mode “m/s2”, LCD screen shall display aP; indicators of 10-10kHz and m/s2 are as follows:
  1. Use probe to measure object according to the selected way and measurement result shall display in data value display area of LCD as shown in the following illustration:

2) Velocity measurement:

  1. Press key V to enter into velocity measurement mode and LCD screen shall display Vrms; indicators of 10-1kHz and cm/s are as follows:
  1. Use probe to measure object according to the selected way and measurement result shall display in data value display area of LCD as shown in the following illustration:

3) Displacement measurement:

  1. Press key D to enter into velocity measurement mode and LCD screen shall display dp-p; indicators of 10-500 Hz and mm are as follows:
  1. Use probe to measure object according to the selected way and measurement result shall display in data value display area of LCD as shown in the following illustration:

4)  Maximum value measurement

Under corresponding measurement mode, press key MAX to enter into maximum value measurement mode, LCD screen shall display indicator of MAX and results of maximum under corresponding measurement mode in the data value display area; press key MAX to cancel maximum value measurement.

5) Reading holds measurement:

Press HOLD key to enter into reading hold measurement mode, LCD screen shall display indicator of HOLD and hold the present measurement value in data value display area on LCD screen.

6) Backlight display:

Press the key  to enter into LCD backlight display mode, and LCD screen shall display indicator , and light up, press key   to exit backlight display.

7) Data storage:

Press key REC to enter into manual data storage mode, LCD screen shall display indicator of DATA and store the present measurement value manually, DATA signal shall disappear after about 0.5 second; press key REC to conduct next position data storage. Press REC for a long time to enter into automatic data storage mode, indicator of DATA on LCD screen shall flicker continuously, and store the present measurement value automatically between the set time intervals (detailed in menu function set). If automatic record count exceeds the maximum record count 1999, it shall exit data storage automatically.

8) Check record data

Press key REND to enter into check record data mode, if no storage data, data value on LCD screen display area display — data record number display area display — and enter into test function after about 0.5 second. If any storage data, it shall display the last data and record number; press key  “▼” to reduce record number and its  corresponding storage data; Press for a long time to automatically reduce them. Press key “▲” to increase record number and corresponding storage data, press it for a long time to increase them automatically. Press REC to display increase by 100, if record count is less than 100 or exceed maximum record count 1999, it shall back to the first record number and corresponding storage value; press REC to back to the first record number and corresponding storage value. Under the mode, only the above keys and   can be used except for others. Press the key to exit the mode.

9) Delete record data:

Method1: before start machine, press key CLEAR and POWER in the same time, stop pressing key POWER until LCD screen display CLR, record deletion has been completed.

10) Menu function set:

Press key MENU to enter into menu function set with fault status USB0, which indicates failure to conduct USB communication, press key “▲” or “▼” to change USB setting, LCD screen shall display indicator of USB and USB1 indicates being able to conduct USB communication; Under menu function set mode, press key READ, LCD display USB1 flickering, after memory data transmitted to computer, press key ENTER to save and enter into next menu — set automatic power-off AP 01, which indicates automatic power-off function is open, LCD shall display indicator , and press key “▲” or “▼”   to set AP00, indicating the automatic power-off function is off, then set AP01. Press ENTER to save and enter into next menu to record interval automatically, press automatic add for a long time or press key “▼” to reduce time, press automatic subtraction, time scope of the machine can be set is 0.5-255; Press the key ENTER to save and enter into next menu-factory set. LCD displays DEF?  (Press key ENTER to restore factory set USB0, AP01, 60 S, clearing all record data. If press key MENU, it will enter into the original measurement function. Under menu set mode, if power-off, the menu status shall be stored automatically and be restored from save status after power-on, without reset each time).

  • Long probe L is only applicable to low frequency measurement, when measurement accelerated and frequency exceeds 1 kHz, please replace short probe to measure again.
  • It will be powered off automatically 3 minutes later if without any operation.

Maintenance

  1. Working environment: Vibration meter is precision apparatus required to avoid collision, shock, moisture, strong power, magnetic field, oil and dust.
  2. Replace battery and maintenance
  • In working, LCD shows symbol , user needs to replace battery timely in reference to illustration in the manual.
  • Please draw out battery to avoid battery weeping, which shall cause severe damage to the apparatus if you needn’t use the test apparatus for a long time.
  • Don’t dismantle the apparatus or try to make any transformation interiorly.
  • Chassis cleaning: alcohol and diluents are erosive to chassis, especially to LCD window

Mechanical Vibration Rating Table (ISO2372)

Vibration intensity Applicable to the following machine
Vibration velocity Vrms (mm / s) I II III IV
0.28  

A

 

A

 

A

 

A

0.45
0.71
1.12  

B

1.8  

B

2.8  

C

 

B

4.5  

C

 

B

7.1  

 

D

 

C

11.2  

D

 

C

18  

D

28  

D

45

Notes:

  1.  Grade I is small-size electric motor (less than 15 kW electric motor); Grade II is medium-size electric motor (15 kW-75 kW electric motor); Grade III is large original electric motor (hard base) ; grade IV is large original electric motor (plastic base).
  2. A, B, C, D is the vibration rating. A is great, B is satisfactory, C is discontent and D is not allowed. The measurement velocity RMS value shall be on the orthogonal intersection direction of shell bearing.

The maximum allowable vibration for electric motor higher than 1 horsepower (NEMA MG1-12.05)

Rotating speed (r / min) Peak-peak displacement amplitude (µm)
3000 ~ 4000 25.4
1500 ~ 2999 38.1
1000 ~ 1499 50.8
≤ 999 63.6

Notes: For AC electric motor, use highest sync rotating speed; for DC electric motor, use the maximum power rotating speed; and for serial and multipurpose electric motor, use working rotating speed.

The maximum allowable vibration for large electric motor (NEMA MG1-20.52)

Rotating speed (r / min) Peak-peak displacement amplitude
3000 and higher 25.4
1500 – 2999 50.8
1000 – 1499 63.6
≤ 999 76.2

The above two standard are formulated by National Electrical Manufacturers Association (NEMA)

Preformed winding squirrel-cage induction electric motor

Sync rotating speed (r / min) Peak-peak displacement amplitude (µm)
Plastic support Rigid support
720 ~ 1499 50.8 63.6
1500 – 2999 38.1 50.8
> 3000 25.4 25.4

The standard is formulated by American Petroleum Institute.

ISO/IS2373 the electric quality standard based on vibration speed amplitude

Quality Grade Rotating Speed  (r / min) Axis Height H (mm) maximum  speed vibration rms (mm / s)
80 < H < 132 132 < H < 225 225 < H < 400
N (Normal) 600 ~ 3600 1.8 2.8 4.5
R (Good) 600 ~ 1800

1800 ~ 3600

0.71

1.12

1.12

1.8

1.8

2.8

S (Special) 600 ~ 1800

1800 ~ 3600

0.45

0.71

0.74

1.12

1.12

1.8

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