Vibrometer CM-21
User Manual
2015
Vibrometer CM-21 User manual
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Vibrometer CM-21 User manual
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Vibrometer CM-21 is a portable battery powered device used for condition monitoring purposes.
It allows measurement of a number of parameters like vibration, temperature, rotation speed, etc.
Contents
1 Uses ......................................................................................................................................... 5
2 Vibrometer set ......................................................................................................................... 5
3 Specifications .......................................................................................................................... 6
4 Using the CM-21 ..................................................................................................................... 7
4.1 User interface and operation ............................................................................................. 8
4.2 Charging the CM-21 ......................................................................................................... 9
4.3 Switching the CM-21 on. ................................................................................................ 10
4.4 Basic Operation of the CM-21 ........................................................................................ 10
4.4.1 Measurements .......................................................................................................... 10
4.4.2 Saving measurement results .................................................................................... 11
4.4.3 View saved measurement results ............................................................................. 12
4.4.4 Navigator for measurements .................................................................................... 12
4.5 Setting up the CM-21 ...................................................................................................... 13
4.5.1 Setting the accelerometer sensitivity ....................................................................... 13
4.5.2 Setting the bandpass filter........................................................................................ 14
4.5.3 Setting the magnitude value .................................................................................... 15
4.5.4 Alarm levels setup. .................................................................................................. 16
4.5.5 Date-time set up. ...................................................................................................... 17
4.5.6 Auto switch off setting. ........................................................................................... 17
4.5.7 User interface language setting................................................................................ 17
5 Measurements ........................................................................................................................ 18
5.1.1 Route measurements. ............................................................................................... 19
5.1.2 Rotation speed measurements. ................................................................................ 20
6 Audio monitoring .................................................................................................................. 20
Vibrometer CM-21 User manual
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Vibrometer CM-21 User manual
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№
Description
Quantity
1
Vibrometer CM-21 (main unit)
1
2
Accelerometer IEPE type 608
1
3
Protective case
1
4
Magnet for accelerometer DM2
1
5
Probe for accelerometer
1
6
Mains adapter (Charger) CA-CM-21
1
7
User manual
1
8
System report
1
9
Tachoprobe FD-2 1
1
11
Cable for Tachoprobe KMM-21-1 1
1
12
Connector to earphones 3.5mm 1
1
13
USB cable USB-CM-21 1
1
1 Uses
Measurements of low frequency vibration selected by band-pass filters according to
ISO 10816 and additional filters. Vibration is measured in acceleration, velocity and
displacement units
Measurement of high frequency vibration components for bearing diagnostics
Condition monitoring and alarming using alarms levels set up by the operator.
Rotation speed measurements using photo tacho probe
Temperature measurements with integrated pyrometer
Audio monitoring of the vibration signals from the vibration sensor with earphones
The functions of the Vibrometer CM-21 may be extended with further firmware updates.
2 Vibrometer set
The Vibrometer is supplied in the following set:
1)
Supplied in the advanced kit configuration
6
3 Specifications
Vibration measurement range:
acceleration, m/s2
0,1 - 1000
velocity, mm/s
0,1 - 1000
displacement, um
1 - 10000
Vibration frequency range, Hz
2- 2000
Frequency bands for vibration measurements according to
ISO 10816, Hz
2 - 1000,
10 - 1000,
10 - 2000
High frequency bands, kHz
6.4-25
10-25
15-25
High frequency acceleration measurements
RMS
Peak
Peak-factor
Bandpass filters specifications according to
ISO 2954-97
Relative error with vibration measurements in amplitude range,
%
+\- 5
Relative error with vibration measurements in frequency range,
%
+\- 7
Main relative error with vibration measurements, %
+\-10
Rotation speed measurements
Rotation speed measurement range, Hz (RPM)
2 - 650 (120 - 39000)
Relative error in rotation speed measurements, %
± 1
Temperature measurements
Temperature indication distance, m
0.1 – 1.0
Temperature range, C
Minus 40 – plus 350
Temperature resolution, C
0.1
Other
Time working from batteries, not less, hours
8
Service life, not less, hours
10000
Weight, kg
0,315
Size, mm
86×138×26
Protection
IP65
Environmental conditions for operation:
Temperature, C
From -20 up to +50
Relative humidity, %
Up to 90
Vibrometer CM-21 User manual
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