KROHNE OPTIMASS 6000 EN - Manual (Page 12)

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DEVICE DESCRIPTION
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OPTIMASS 6000
www.krohne.com 07/2014 - 4001894003 - MA OPTIMASS 6000 R03 en
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.
If the meter continues to display the message: "Sensor: Sensor signal low" you MUST assume
that the primary seal (tubes) has failed and the appropriate action MUST be taken.
Gases Gases Gases Gases (Example model code: OPTIMASS 6000F S50 - GAS)
Pressure / temperature data: Pressure / temperature data: Pressure / temperature data: Pressure / temperature data:
OPTIMASS 6000 / 6000F / 6400C -200°C...+230°C and 500... 10000 kPa (Stainless Steel)
OPTIMASS 6000 / 6000F / 6400C -50°C...+230°C and 500...20000 kPa (Hastelloy® / duplex)
OPTIMASS 6000F - HT -50°C...+400°C and 500...10000 kPa
Pressures and/or temperatures may be further limited by tube, temperature, connection and Ex
limits. Consult the meter nameplate 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/s) fails leakage will occur from the burst disc. Install the meter so that the
burst disc is pointing away from personnel.
Regular maintenance of the burst disc: Regular maintenance of the burst disc: Regular maintenance of the burst disc: Regular maintenance of the burst disc:
Carry out regular maintenance checks on burst discs for leakage and/or blockages. On all
OPTIMASS meters, the primary seal is considered to be the measuring tube of the meter. The
materials of construction of the measuring tube/s are described within the relevant sections of
this handbook and the customer’s product and any other fluid flowing through the tube must be
compatible with the material of construction. If failure of the primary seal is suspected then the
process line should be de-pressurised and the meter removed as soon as it is safe to do so.
Please contact customer service for servicing or replacement of the meter.
2.4 Temperature differential and thermal shock
Temperature differential Temperature differential Temperature differential Temperature differential
The maximum difference between ambient temperature and process (operating) temperatures
are:
INFORMATION!
At high pressures, process fluid may also leak from the meter casing. This is also an indicatioin
that the primary seal has failed.
Meter temperature range Maximum temperature differential
-200°C...+40°C / -328°F...+104°F 210°C / 410°F
-70°C...+230°C / -94°F...+446°F
-50°C...+400°C / -58°F...+752°F
380°C / 716°F
MA_OPTIMASS_6000_en_140717_4001894003_R03.book Page 12 Thursday, July 17, 2014 3:27 PM