KROHNE BM 500 EN - Manual (Page 9)

DEVICE DESCRIPTION
2
9
BM 500
www.krohne.com 12/2013 - 4003176301 - MA BM 500 R02 en
2.1 Scope of delivery
The following items are supplied with the device:
• Measuring device
• Hygienic adapter (optional)
• Product documentation
2.2 Device description
The BM 500 level meter utilises the potentiometric measuring principle and can be used in all
medias that have a minimum conductivity of 50 μS/cm.
From the low resistive measuring rod a high frequent current is fed through the media to the
tank wall. The voltage between the tip of the rod and the tank wall is measured. This output
voltage is proportional to the level in the tank.
The measurement is unaffected by temperature and adhesive media.
The device is ideal for measurements in small vessels with tough, pasty or strong adhesive
media, such as ketchup, honey, and toothpaste. The integrated electronics provide a 4...20 mA
output.
The device has automatic recognition of top/buttom mounting position. Even angled installation
is possible.
In non-conductive tanks, e.g. plastic, a reference rod must be installed (order a standard
LS 7200 without electronics).
The BM 500 is available as compact and remote version. The remote version is recommended for
applications where the ambient temperature at the measuring point exceeds +60°C / +140°F.
Due to the high process temperature limit, the device is well suitable for CIP and SIP processes.
The hygienic installation is guaranteed by using one of the hygienic weld-in sleeves. For further
information refer to the specific data sheet "Hyg. accessories".
INFORMATION!
Inspect the cartons carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.