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The BTM-400PLUS Belt Tension Meter, Trummeter or Tensiometer also called a Sonic Tension MeterIncludes two (2) separate Sensors – a plug-in type for one-handed operation and a cable-connected type for measuring belts with limited access space
Displays tension in hertz or newtonsCompact easy-to-use design

皮帶張力計/ Trummeter

The new BTM-400PLUS Belt Tension Meter or Sonic Tension Meter accuray measures the static tension of flat, V and ribbed belts of rubber, leather, fabric and composite materials by measuring the natural frequency (Hz) of a segment of the belt that has been tapped and then converting it into tension units of newtons (N) or pounds force (lbf).

The instrument uses a pulsed ruby red light source to measure the natural frequency of the vibrating belt. Unlike competitive models, the BTM-400PLUS is NOT affected by ambient noise, providing quick reliable results in all production and field applications.

line Features

皮帶張力計/ Trummeter
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Includes two (2) separate Sensors – a plug-in type for one-handed operation and a cable-connected type for measuring belts with limited access space
Displays tension in newtons (N) or pounds force (lbf) or natural frequency in Hertz (Hz) - selectable
Compact, easy-to-use design
Displays Menu in English, German, Spanish, Portuguese, French or Italian & others - selectable
Readings unaffected by nearby magnetic fields or noise

line Photo Gallery
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line Typical Applications

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Typical application for Belt Tension Meter

line External Probe Dimensions
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line Complete Kit
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The BTM-400PLUS is supplied as a complete kit, including: the gauge, plug-in and cable connected sensors, 9-volt battery, Instruction Manual – all in a foam-fitted, hard plastic carrying case.

BTM-400Plus Complete Kit
line Specifications
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Measuring Range*	3 - 800 Hz
Accuracy**	± 5% or better
Sensing Distance***	0.200" - 1.6" (5 - 40 mm), typically (2.5"/60 mm max, depending upon ambient light & surface of belt to be measured)
Casing	ABS Plastic
Display	2 line LCD, 16 character per line
Input Range	free span length: up to 9.990 m belt mass: up to 9.999 kg/m
Power Supply	9V battery
Operating Temperature

*BTM-400PLUS can measure up to 800 Hz, however most belts will break near 400Hz

**Static tension (T) accuracy depends on the precision of entered values for free belt span (L), density (d) andnatural frequency (f) of the vibrating free belt span, that has been plucked or struck, as noted in the relationship: T = 4dL2f2. Note that highest accuracy is achieved in the frequency mode where readings are accurate to <1%, ± 1 Hz.

***Sensing distance can be extended when ambient light level is low also by adding a piece of reflective tape in the "target area" of the belt.

line Downloads
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BTM-400PLUS Belt Tension Meter / Trummeter - Data Sheet

BTM-400PLUS Belt Tension Meter / Trummeter - Instruction Manual

line Buy Now
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CHECK THE ITEMS YOU WOULD LIKE TO PURCHASE THEN CLICK "ADD TO CART"
	ITEM	PRICE
	BTM-400Plus Belt Tension Meter (Trummeter), Range 3 - 800 Hz	$795.00
	ACCESSORIES	PRICE
	BTMCAL-Traceable Calibration Certificate with Data	$100.00
	BTM-PLUGSENSOR-Spare LED Plug-In Sensor	$125.00
	BTM-400-SENSOR-Spare Cable Type Sensor	$345.00
	BTM-TFS Reference Tuning Fork set,128 and 256hz without certification	$75.00

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