CONTI VSM-3 Small Belt Tension Tester

Instrument Description

The CONTI VSM-3 tension gauge is a fully electronic measuring instrument designed specially to measure the initial tension of timing belts, multiple V-ribbed belts and V-belts.

The right initial tension in force- and form-locked belt drives is a prerequisite for trouble-free, long-term operation of drives in industrial applications.

Properties

• Non-contact measurement
• Exceptionally compact design for reliable measurements, even in hard-to reach areas
• Precise readings using optoelectronic measurement method
• Sturdy and durable housing

Typical Applications

The CONTI VSM-3 tension tester is designed for measuring the pretension of timing belts, ribbed belts, and V-belts. It enables simple and precise adjustment of the static force in the belt span of any drive belt, regardless of the tension member material.

Measurement Procedure

1. Make sure that the drive system you are measuring is stationary. Never measure a belt drive that is still in operation!
2. Switch on the tension gauge by means of the ON/OFF switch. The device will first perform a power-on self test, and, if the switch is kept pressed, will also show the state of battery charge in mV. Let go of the switch.
3. The gauge is ready to start measurement when 0000 appears in the display.
4. Hold the gauge over the flat side of the belt half to be measured so that the sensor at the top of the flexible arm is centered above the section to be measured at a distance of about 1…20 mm. The most suitable measuring distance may vary depending on the colour and material of the belt. Generally, it applies that with light coloured materials having good reflection properties the sensor can be held further away from the belt (about 10…20 mm). With dark materials and a low reflectivity, the sensor must be closer to the belt (1…5 mm). A red beam spot on the belt shows the position of the sensors above the belt. Care must be taken to ensure that the sensor head is held parallel to the back of the belt (see diagram). Strike the belt so that it starts to vibrate. Try to generate uniform vibrating motion with a sufficiently high amplitude. You will find it easier to start belt vibration by hitting the belt with a tool, like the head of a screwdriver for instance.
5. The vibration frequency in Hz is indicated in the display. An acoustic signal confirms that the measurement was successful.
6. If the belt is still vibrating sufficiently after the first measurement, further measurements will be displayed automatically. Once the vibrations die down, the last measurement will remain displayed.
7. When you have finished, press the ON/OFF switch to turn the device off again.

Documents for Download

CONTI VSM

ContiTech Product Overview

Czech and English (PDF 92.15 kB)

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Calibration and Repairs of CONTI VSM Price List

TYMA CZ Product Overview

Czech and English (PDF 496.29 kB)

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