KROHNE BM 26 BASIC_ADVANCED EN - Manual (Page 31)

START-UP
5
31
BM 26 BASIC/ADVANCED
www.krohne.com 10/2012 - 4000347004 - HB BM26 Basic/Adv R04 en
5.1 Start-up checklist
Check these points before you use the device:
• Are all the wetted components (chamber, flanges and gaskets) resistant to the product in the
tank?
• Does the information on the nameplate agree with the operating data?
• Did you correctly install the device on the tank?
• Do the electrical connections agree with the national electrical codes?
Start-up procedure
• Attach the drainage plugs or close the drainage cock.
• Slowly open the shut-off valves on the top and bottom process connections.
5.2 Operating concept
You can read measurements in several ways:
• Level is indicated by a column of rotating flaps.
• Level is detected by optional limit switches installed at important points adjacent to the
measuring chamber.
• Level is monitored remotely by an optional analog transmitter (2-wire, reed-chain) adjacent
to the measuring chamber. There is a large choice of outputs (4...20 mA, 4...20 mA + HART,
FF and PROFIBUS PA). An LCD indicator option is also available for this transmitter.
DANGER!
Make sure that the device and the installation agrees with the requirements of the Ex certificate
of compliance.
WARNING!
Risk of damage to the device from shock waves. Open the valves slowly to prevent damange from
water hammer. Use a pressure-limiting valve to prevent damage to the installation.
WARNING!
The device must have regular servicing to agree with rules and regulations of the site it is
installed on.
WARNING!
High-temperature versions: risk of burns. Do not go too near to the device.
CAUTION!
Customer order data is used to calibrate the device. If liquid density changes, the device will not
measure correctly. For more data, refer to Error handling on page 38
.