https://www.abqindustrial.net/store We offer an extensive line of precision measuring and test instrumentation. We continually strive to offer unparalleled VALUE & QUALITY product and service to our valued customers. en Copyright (c) 2026 Albuquerque Industrial info@abqindustrial.net (admin) info@abqindustrial.net (admin) Mon, 08 Jun 2026 20:47:57 +0000 Zen-Cart v. v 2.1.4 14.02.2008 15:26 RSS 2.0 Feed 1440 https://www.abqindustrial.net/store/tension-meters-c-98/belt-tension-meters-c-98_6/btm-400plus-belt-tension-meter-frequency-meter-sonic-tension-gauge-p-90.html https://www.abqindustrial.net/store/index.php?main_page=product_reviews&products_id=90 The Checkline BTM-400PLUS Belt Tension Meter, Sonic Tension Meter or Belt Frequency Meter also called a Sonic Tension Meter Includes two (2) separate Sensors – a plug-in type for one-handed operation and a cable-connected type for measuring belts with limited access spaceDisplays tension in hertz or newtonsCompact easy-to-use designThe Checkline BTM-400PLUS Belt Tension Meter or Sonic Tension Meter accurately 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 Kit Contents BTM-400PLUS Belt Tension Meter / TrummeterPlug-in and cable connected sensors9-volt batteryInstruction ManualCarrying case Click image for more info Features Includes two (2) separate Sensors – a plug-in type for one-handed operation and a cable-connected type for measuring belts with limited access spaceDisplays tension in newtons (N) or pounds force (lbf) or natural frequency in Hertz (Hz) - selectableCompact, easy-to-use designDisplays Menu in English, German, Spanish, Portuguese, French or Italian & others - selectableReadings unaffected by nearby magnetic fields or noise Specifications Measuring Range*3 - 800 HzAccuracy**± 5% or betterSensing Distance***0.200" - 1.6" (5 - 40 mm), typically (2.5"/60 mm max, depending upon ambient light & surface of belt to be measured)CasingABS PlasticDisplay2 line LCD, 16 character per lineInput Rangefree span length: up to 9.990 mbelt mass: up to 9.999 kg/mPower Supply9V battery*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) and natural 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 Albuquerque Industrial https://www.abqindustrial.net/store/tension-meters-c-98/belt-tension-meters-c-98_6/btm-400plus-belt-tension-meter-frequency-meter-sonic-tension-gauge-p-90.html Fri, 25 Apr 2025 20:59:02 +0000 USD 90 Checkline 622 BTM-400Plus https://www.abqindustrial.net/store/images/BTM-400PLUS.jpg https://www.abqindustrial.net/store/images/additional/checkline-btm-400plus-belt-tension-meter---trummeter-3571.jpg https://www.abqindustrial.net/store/images/additional/checkline-btm-400plus-belt-tension-meter---trummeter-3572.jpg https://www.abqindustrial.net/store/images/additional/checkline-btm-400plus-belt-tension-meter---trummeter-3573.jpg https://www.abqindustrial.net/store/images/additional/checkline-btm-400plus-belt-tension-meter---trummeter-3574.jpg https://www.abqindustrial.net/store/images/additional/checkline-btm-400plus-belt-tension-meter---trummeter-3575.jpg 90 377 /store/images/warranty-1-year-new.png