Mobile Rope Measurement MSM 12
Henning GmbH
Page 21
2.0 / 3.2009
8.3
Weight measurement
Due to heavy friction of the car or the counterweight in the rail guides the
measuring result can be negatively influenced. In such a case it is better to de-
termine the weight during a constant travel. This effect is found particularly
frequently in the case of rucksack guides. In the case of roller guides in gen-
eral this effect is found clearly less frequently than for slide guides
If possible, clamp the sensors into the rope directly above the load to be measured
(Distance >= 200 mm) and subsequently travel a short way upward. If there is no dif-
ference between the indicated load during the constant travel and during standstill,
the above mentioned friction in the guides does not exist and it is not necessary that
you carry out the measurement during travel.
If there is a significant difference between the travel and the standstill value, remem-
ber the value during the upward travel and then start a downward travel with constant
speed and read this value during the travel, too.
The mean value of the upward and downward travel is the weight to be measured.
By means of the trick of the upward and downward travel and the subsequent forma-
tion of a mean value you have eliminated the kinetic and cohesive friction of the ele-
vator from the measured value.
In the case of multi-suspensions, please take special care that the sensors are
not overrun during the travels!
9
Option: Bluetooth connection
9.1
Installation of the Bluetooth adapter
For the establishment of a wireless Bluetooth connection with the MSM12 rope load
meter a Bluetooth adapter is required. If the computer is not equipped with such an
adapter, you can use the factory-supplied Bluetooth adapter. Follow the instructions
of the Windows XP operating system (and follow-up versions). These instructions will
appear as soon as you have connected the Bluetooth adapter to your computer. Do
not use the driver CD!
In exceptional cases, dependent on your computer configuration, it can happen that
the adapter is not automatically recognized and installed by the system. In such a
case use the factory-supplied installation CD and follow the instructions of the instal-
lation program. The operating instructions of the Bluetooth adapter are also found on
the CD.
