STI CMCP-620V, CMCP-620VT User Manual

Vibration Monitoring For Industrial Applications

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User Guide

CMCP-620V/620VT Monitoring Kits

CMCP-620V/620VT User Guide

TS685

CMCP-620V/620VT

Vibration Meter Kit

User Guide

STI Vibration Monitoring Inc.

December 2016

The CMCP-620V Vibration Meter Kit is an ideal low cost entry level vibration
monitoring instrument, designed for Maintenance Technicians to use on site, helping
to give protection to important plant machinery. The CMCP-620VT adds an easy to

use temperature measurement function.

This document may not be reproduced in any way without the prior written permission

of the company.

CMCP-620V/620VT User Guide

TS685

CMCP-620VT in case

CMCP-620V/620VT User Guide

TS685

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1. Overview

1.1 CMCP-620V/620VT Kit Contents

1.2 Overall Vibration Mode

1.3 Bearing Status Mode

1.4 Measurement Units

2. Operating Instructions

2.1 Sensor Connection

2.2 Power On/Off

2.3 Key Functions

2.4 Overall Vibration Measurement & Assessment

2.5 ISO Machine Groups

2.6 Bearing Status Check

2.7 Battery & Charger

3. The ISO 10816-3 Machine Vibration Standard

4. Bearing Status Assessment

4.1 Bg Value

4.2 Bv Value

5. Temperature Mode (CMCP-620VT only)

5.1 Surface Temperature Measurement

6. Specication

7. Warranty

8. Certicate of Calibration

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Contents

CMCP-620V/620VT User Guide

TS685

1. Overview

The CMCP-620V Vibration Meter Kit is a reliable and easy to use hand-held machine
condition inspection instrument. It provides vibration measurement, alarm indication and
a bearing status check facility. The CMCP-620VT kit provides an additional facility for non­contact temperature measurement. The meter enables plant maintenance technicians to

monitor their machines, nd potential problems in advance of failure, and to ensure machine

reliability.

1.1 CMCP-620V/620VT Kit Contents

• Vibration meter/Vibration meter with temperature, with lithium battery tted

• Hand-held Accelerometer with TNC Connector

• 80cm cable with TNC to BNC connectors

• Magnetic Base

• Vibration Spike

• 2 x Battery Charger (Mains + Car)

• Manual

• Carrying Case

1.2 Overall Vibration Mode

The meter can measure vibration Velocity in mm/s rms, Acceleration in g peak, and
Displacement in !m peak to peak. When measuring Velocity, and on switching to the
‘Hold’ mode, the meter display will indicate an alarm status according to ISO10816-3.

1.3 Bearing Status Mode

The meter measures Bg value in g rms and Bv value in mm/s rms which represent the
bearing status. The lower frequency machine vibrations are attenuated by a 1kHz high

pass lter. In the ‘Hold’ mode, the meter display indicates the bearing alarm status.

1.4 Measurement Units

The meters are available in three different congurations for measurement units. These
are: Metric 1, Metric 2 and Imperial. The units required must be specied on order – see

table on page 5 for units used in each mode. Metric 1 settings are used throughout the
manual.

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CMCP-620V/620VT User Guide

TS685

BNC connector

LCD Screen

VIB Key

SEL Key

BRG Key

Integral Cable

Hand Probe
with Sensor

2. Operating Instructions

Figure 1. The VBA20

2.1 Sensor Connection

Fit the vibration sensor to the machine measurement position via a magnetic base or stud.
Connect the sensor cable to the BNC connector on the meter. When a satisfactory sensor
connection is made, the sensor fault icon on the LCD display will disappear. Conversely,
the sensor fault icon will appear if the meter detects a poor sensor connection.

2.2 Power On/Off

Power On - Push SEL key only for “ sec. The meter defaults to the overall vibration
velocity range.
Power Off - Push two keys, SEL + BRG or SEL + VIB for 1 sec.
The meter will power-off on release of the keys.
The meter will automatically power-off after 3 minutes of no key operation.

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CMCP-620V/620VT User Guide

TS685

2.3 Key Functions

SEL key -

OVERALL VIBRATION MODE Measurement units - specied on order

Metric 1 Metric 2 Imperial

Bg g rms m/sec2 rms g rms

Bv µm pk-pk µm pk-pk mil pk-pk

Table 1

BEARING STATUS MODE Measurement units - specied on order

Metric 1 Metric 2 Imperial

Bg g rms m/sec2 rms g rms

Bv m/sec rms mm/sec rms in/sec rms

Table 2

Press SEL to switch-on the meter.
In the Overall Vibration mode press SEL to toggle through the
measurement parameter options:

VIB key - Press VIB to toggle between Measure and Hold modes. The Hold

mode is indicated by an ‘H’ in the display.

In the BRG mode press VIB to enter the Overall Vib. Mode.

BRG key - In the Overall Vib. Mode press BRG to enter the Bearing Status

mode.

In the Bearing Status measurement mode press BRG to toggle
between this and the Bearing Status hold mode indicated by an
‘H’ on the display.

When the overall velocity reading is in the Hold mode, the meter display indicates the

vibration alarm status of the machine according to ISO10816-3 as dened in section 3.

When the BRG velocity or g reading is in the Hold Mode the meter display indicates the

bearing status according to a rule-of-thumb assessment as dened in section 4.

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