Habasit BTM-1, Operating Instructions Manual, Page: 14 / 20

Operating instructions – Belt tension meter BTM-1
Version 1.0
14
Step by Step:
−
Selection of the weight for a 25mm wide belt

m = 0.15[kg/m]
−
Dividing the weight by the nominal belt width of 25mm

ρ
= m[kg/m] / b[mm] = 0.15 / 25 = 0.006[kg/(m*mm)]
−
Convert from [g/m2] to [kg/m2] by multiplication with 1000

0.006[kg/(m*mm)] * 1000[mm/m] = 6.0[kg/m
2
]
No datasheet values available (flat or timing belts)
If no datasheet is available it is possible to measure the weight and then to
calculate the grammage. A precondition for this is to have an accurate scale
available, which can measure with an accuracy of
+/-1% of the measured value.
Procedure:
The weight of a piece of belt with a width “b” and a length “l” has to be
measured with a scale. The weight [kg] has to be divided by the width [m]
and by the length [m].
Example for AT10-S-01:
•
You have a piece of 15mm width and 0.5m length.
•
The weight is 45g = 0.045kg
•
The weight has to be divided by the dimensions in meter [m].

ρ
= m [kg] / b [m] / l [m] = 0.04 / 0.015 / 0.5 = 6.0 [kg/m
2
]

Input of calculated value in the BTM-1
1. Switch on the device

2. Open belt selection menu by 2x pushing the button.
3. Select belt type zero “0”.
4. Enter the calculated value.