KROHNE OPTIMASS 7400 Manual de usuario
For initial set up, we strongly recommend that you also refer to the relevant manual!
Quick Start
1
Installation, assembly, start-up and maintenance may only be performed by appropriately
trained personnel. Check the nameplate for correct operating conditions.
For use in hazardous areas, special codes and regulations are applicable. Instruments must
not be connected to power supply before reading instructions described in the supplementary
manual.
This instrument complies with the requirements of the Pressure Equipment Directive. Please
refer to the nameplate for operating condition limits. Instruments must not be pressurised
before reading instructions described in the manual.
This instrument complies with the requirements of the Low Voltage Directive. Instruments must
not be connected to the power supply before reading the instructions described in the manual.
For devices used in SIL applications, additional safety notes apply. For detailed information
refer to the “Safety Manual”.
The responsibility as to the suitability, intended use and corrosion resistance of the used
materials against the measured fluid of this device rests solely with the operator.
Quick Start
Hygienic connectionsFlange connections
Handling the meter
Supporting the meter
Mounting positions
Self draining (hygienic)
1 Installation
Special conditions of use to be observed
• The OPTIMASS measuring system and MFC converter must be included in the equipoten-
tial bonding system of any hazardous area installation.
• Allow the electronics to de-energise before opening the electronics enclosure inside a
hazardous area. The time needed to de-energise is 35 minutes for temp. class T6 and 10
minutes for Temp. class T5. There is no waiting time for Temp. class T1
• Use certified cable glands on cable entries. Use a certified plug to seal unused cable
entries.
• Install connecting cables as fixed wiring so that they are protected against damage.
Connecting cables must not exceed the parameters specified in the Supplementary
Instructions for Hazardous Areas.
• For details on the relationship between: maximum permissible ambient temperature, maxi-
mum medium temperature, maximum surface temperature and the relevant temperature
class for each individual meter, please refer to the tables provided in the relevant meter
Handbook and/or the Supplementary Instructions for Hazardous Areas.
If the hygienic installation requires the meter to
be self draining, mount the meter at an angle.
DO NOT mount the meter horizontally!
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OPTIMASS 7400
Single, straight tube mass flowmeter
1
2
CAUTION!
If there is excessive vibration in the process pipework, you must isolate the meter from its
mounting. It is recommended that you place an insert made from rubber (or similar material)
between the meter body, or pipework, and the mounting clamp or fixing point. For more
information, contact the manufacturer.
Danger:
• Turn offthe power supply before working on electrical connections.
• Check the voltage data on the nameplate
• Observe national regulations for electrical installations
• The device MUST be grounded in accordance with regulations to protect personnel
against electric shock
Vibration from pumps and other equipment in the process line can have an effect on the meter that, in
some situations, can cause damage. Damage is most likely to occur if the meter has hygienic
connections and the level of vibration is excessive.
Excessive vibration
2 Electrical connections
Compact
Procedure
1. Unscrew the housing cover 1
2. Open the touch guard 2
3. Put the electrical cable through the related
cable gland
4. Connect the electrical wires 3
5. Close the touch guard 2
6. Put the signal cable/s through the related cable
gland/s
7. Connect the signal cables 4
8. Replace the housing cover and tighten it with
your hand 5.
Remote
Signal cable preparation
The signal cable is made up of five (twisted) pairs of cables. Each pair also has a drain wire and the
three wires are covered in a foil wrap. The five cable pairs are covered in an outer foil wrap and a braided
screen. The complete cable is protected by a PVC outer sheath
1Outer Sheath
2Braided screen
3Outer foil wrap
4Foil wrap
5Cable pairs
6Drain wires
Strip back all the foil wraps and discard them. Unwrap the braided screen so that it can be twisted to form
a connection underneath the earth clamp. Bend all five drain wires back and twist them together with the
braided screen.
It is important that ALL five drain wiresAND the braided screen form part of the shielding.
MFC 400 Remote
Wall mount Field mount The label (above) on the inside of the terminal
compartment lid, gives information about out-
put connections.
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3
Cable connections (sensor and converter)
Procedure
1 Unscrew the housing cover 1
2 Put the electrical cable/s through the related
cable gland/s 4
3 Connect the conductors 2
4 Run the twisted sink wires and the braided
screen under the earth clamp 3
5 Fix the clamp in place using the two screws
6 Tighten the cable gland/s 4
7 Replace the housing cover and tighten it with
your hand 5
1Signal converter
2Flow sensor
3Cable shielding
4
Shielding
Display
Converter keys
3 Quick setup
1Display (ER1.0.x shown)
2Optical operating keys
Procedure:
Touch the glass directly in front of the optical operating keys to access menus.
If the optical keys are not used for a period of 5 minutes, the display will return to the measuring
mode.
2
1
Zero calibration
ER 1.0.x ER 2.x.x
The menus shown below are only for the quick setup of the meter. For a complete list of menus please
refer to the relevant converter Handbook.
The quick setup menus shown here are for electronic revision (ER)1.x and electronic revision (ER) 2.x.x
If you are not sure which electronics revision is installed on the converter, please check the nameplate.
Details of standard HART menus are shown in the converter Handbook. For information regarding
menu structures for additional communication protocols, please refer to the relevant Supplementary
Instructions.
Key Measuring mode Menu mode Submenu or function mode Parameter and data mode
Switch from measuring mode to menu
mode. Press Optical key for 2.5s display
shows “A0.0.0.0 Quick Setup”
Access to display menu, and
then 1st submenu is displayed. Access to displayed submenu
or function For numerical values, move
cursor (highlighted in blue) one
position to the right
Reset display. "Quick Access" functionReturn to measuring mode Press 1 to 3 times, return to
menu mode, data saved Return to submenu or function,
data saved
Switch between display pages: measured
value 1 + 2, trend page and status page Select menu Select submenu or function Use cursor to change number,
unit, property and to move the
decimal point
Return to menu mode without
acceptance of data Return to submenu or function
without acceptance of data
or
Esc ][ +
Key Screen Description and setting
A Quick Setup Press and hold for 2.5 s,
then release key
2 x C Setup
3 x C1.1.1 Zero Calibration
Calibrate Zero?
Automatic
Please wait
Countdown from 40s
Calibrate zero
Passed
Zero Calibration
+XX.XXX% Display of measured zero
calibration in %
5 x Save Configuration?
Yes
Display page
Key Screen Description and setting
A0.0.0 Quick Setup Press and hold for 2.5 s,
then release key
2 x C0.0.0 Setup
3 x C1.1.1 Zero Calibration
Calibrate Zero?
Automatic
Please wait
Countdown from 40s
Calibrate zero
Passed
Zero Calibration
+XX.XXX% Display of measured zero
calibration in %
5 x Save Configuration?
Yes
Display page
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4
Contact
Select your country from the region / language
selector to view your local KROHNE contact
details on:
www.krohne.com
Quick setup menu
Measure mode Select Menu Select menu and/or submenu Select function & set data
Press for 2.5 s
A Quick Setup A1 Language
A2 Tag
A3 Reset A3.1 Reset Errors
A3.2 All Totalisers
A3.3 Totaliser 1
A3.4 Totaliser 2
A3.5 Totaliser 3
A4 Analogue Output A4.1 Measurement
A4.2 Units
A4.3 Range
A4.4 Low Flow Cutoff
A4.5 Time Constant
A5 Digital Outputs A5.1 Measurement
A5.2 Pulse Value Unit
A5.3 Value p. Pulse
A5.4 Low Flow Cutoff
A6 GDC IR Interface
A7 Flow Direction
A8 Zero Calibration
A9 Operation Mode
ER 1.0.x
Measure mode Select Menu Select menu and/or submenu Select function & set data
Press for 2.5 s
A Quick Setup
A1.0.0 Language
A2 Reset A2.1.0 Reset Errors
A 2.2.0 Stop all Simulations
A 2.3.0 All Totalisers
A 2.4.0 Totaliser 1
A 2.5.0 Totaliser 2
A 2.6.0 Totaliser 3
A3 Configuration A 3.1.0 Tag
A 3.2.0 Measurement
A 3.3.0 Range
A 3.4.0 Alarm Code
A 3.5.0 Low Flow Cutoff
A 3.6.0 Damping
A 3.7.0 Terminals C Type
A 3.8.0 Flow Direction
A 4.0.0 Safety Mode
A 5.0.0 SIL Verification
A 6.0.0 Unlock Device
A 7.0.0 Calibrate Zero
A 8.0.0 Operation Mode
ER 2.x.x
Download documents and software
Scan the code on the nameplate or scan the following
code and enter the serial number.
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