KROHNE OPTIMASS 2400 - Manual (Page 12)

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DEVICE DESCRIPTION
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OPTIMASS 2400
www.krohne.com 07/2014 - 4003533101- MA OPTIMASS 2400 R01 en
2.1.1 Meters with hygienic connections
2.2 Nameplates
2.3 CSA dual seal
To comply with the requirements of ANSI/ISA -12.27.01-2011 “Requirements for process Sealing
Between electrical systems and Flammable or Combustible process Fluids” a secondary seal is
incorporated into all OPTIMASS / GAS products. If the primary seal fails, the secondary seal will
prevent escaping fluid reaching the electronic compartment.
Pressures and / or temperatures are limited by tube, temperature, connection and Ex limits.
Check the meter nameplates and relevant documentation for full details. On all meters
operating on gas measurement, the casing of the meter is fitted with a burst disc. If the primary
seal (tube) fails leakage will occur from the burst disc. Install the meter so that the burst disc is
pointing away from personnel.
Liquids Liquids Liquids Liquids (Example model code: OPTIMASS 2400C S250 - LIQUID)
Pressure and temperature data: Pressure and temperature data: Pressure and temperature data: Pressure and temperature data:
OPTIMASS 2400C -45°C...+130°C and 100...14000 kPa
If the primary seal fails, the casing of the meter will fill with liquid and the meter will stop
working. The meter will notify the operator by displaying the ststus message "Sensor: Sensor
signal low" on the converter or PLC display. This is an indication that the primary seal (tube) has
failed and the status of the meter should be checked.
Meter status: Meter status: Meter status: Meter status:
The meter will also display the mesage "Sensor: Sensor signal low" if the measuring tubes are
not completely filled with fluid. For example, if the meter is drained or re/filled.
To check the status of the meter, drain and re/fill with fluid and note the converter or PLC
display. See the relevant section of the converter handbook for a list of status messages and
diagnostics information.
1 Fully welded - the O-rings between the meter and the process pipework are not supplied as standard but can be or-
dered.
2 DIN 11864-2 Form A - the O-rings between the Form A and Form B parts of the connection are not supplied as standard
but can be ordered.
3 The 11864-2 Form B is not supplied as part of this connection but it can be ordered.
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.
MA_OPTIMASS_2400_en_140515_4003533101_R01.book Page 12 Thursday, July 31, 2014 5:08 PM