Our dynamic checkweigher for the track: ESSMANN HE-Point
The need to monitor the exact loading of wagons is constantly growing. Overweight and incorrectly loaded wagons are not only a safety risk, but also cause premature wear on the rail network. This in turn leads to a shortened service life of the track systems and thus increases the maintenance costs of the rail network.
The HE-Point rail vehicle scale is an advanced checkweigher and automatically monitors wagon weights and loads. It can be easily installed without foundations and without separating the rail track. The measuring sensors are located in the rail track.
The weighing terminal and a PC with our EWP evaluation software can be located either in a protective room on the track or in a control center, for example in the signal box. In both cases, the Point rail vehicle scales function as a fully automatic control system. It warns immediately in the event of overweight or incorrect loading.
The system automatically recognizes locomotive and wagon data. It determines the weight of wheels, axles, bogies, locomotives and their 2-, 4-, 6- or 8-axle wagons. It also determines the total weight and speed of train sets.
The system also compares weights between two axles or bogies to detect uneven loading along the longitudinal axis of the wagons. All data is clearly displayed on a screen.
If you need a calibratable track scale, find out more about the HE-DRS dynamic track scale.
OVERVIEW ESSMANN dynamic HE-POINT track weighing system
Rail types
49E1 (S49)
Load capacity
according to UIC 71
Dynamic weighing range
0 – 150 t
Number step
0,05 t
Accuracy
approx. +/- 2.0 % on the train set
Wagon types
Weighing of 2-, 4-, 6-, 8-axle vehicles
Protection class
IP66/IP68/IP69K
Installation and commissioning
Installation and commissioning include:
- Delivery of the complete scale free to the installation site
- Mounting the scales
- Device installation
- Device connection
- Device and system test
- Adjusting the scales
- Instruction in operation following the installation of the appliance and
- Trial operation
The electro-mechanical rail vehicle scale is designed for dynamic weight determination of all rail vehicles in axle-by-axle weighing and for determining wheel loads.
The system serves as a non-verifiable checkweigher.
Force sensors (protection class IP68) are installed directly in the rail track of the track system to determine the weight.
The force sensors are protected against external mechanical influences by a protective cover.
The measuring cables of the load cells are combined in a terminal box for each rail.
The measured values are transmitted from these to the weighing system via a special measuring cable.
Adjustable alarm limits
With our HE-Point you are able to freely determine the alarm limits for wheel, axle, bogie and total weight as well as enter either percentage or weight-related limit values for the longitudinal and lateral deviations of the loads. Alarm messages about overweight or incorrectly loaded wagons appear automatically on the screen and are printed out. They can also be sent automatically as an e-mail to the control room or by SMS to a cell phone, e.g. to the locomotive.
Our EWP weighing software, which runs on a standard PC or server, is state of the art software technology. The graphical user interface makes it very easy to use and offers standardized data communication with other programs. In conjunction with our TRANS-IT (transponder technology) or NUMBERCheck (video technology) wagon identification systems, the system can also be used to monitor wagon movements in relation to customers and products. Information about wagons (customer, product, max. load, empty weight) can be retrieved using the wagon number and displayed on the screen or printer.
Information on mounting the dynamic checkweigher
The sensors are integrated directly into the existing rail by our staff using a rail drilling machine and press-fit tool. After cabling, the dynamic checkweigher is adjusted using a reference train and the weighing software is installed. This is followed by training and supervision of the first weighings.
“Installing the dynamic checkweigher in our existing track was straightforward and minimally invasive. The scale has been helping us to avoid overloaded wagons and therefore fines for several years.”
– Patrik Rodek, EIFFAGE
