KROHNE Summit 8800 Vol 2 - Manual (Page 55)

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08/2013 - MA SUMMIT 8800 Vol2 R02 en
SUMMIT 8800 HARDWARE DETAILS 05
• Select one of the four Analog sensor Inputs as connected in hardware.
• Select the Variable that will represent this sensor from the items listed in the pull-down tree.
• Set the Range extremes Maximum and Minimum values in the sensor units selected. It is
recommended that these values are set approximately 20% above and below the Range Max
and min values entered on the Stream set up pages.
Please be aware that the actual scaling of the inputs will be done in the configurator “Connect”
menu under “Calibrate inputs and outputs”. See volume 1.
5 .1 .3 PRT/ RTD/ PT-100 direct temperature input
Most I/O boards have 1 direct temperature input, however the switch I/O board has none. For
details see volume 1.
The PRT (platinum resistive thermometer) also called RTD (resistive temperature device) is in
the SUMMIT a direct 3 or 4 wire PT-100 input (platinum resistance 100 Ohm).
Figure 30 Configure PRT input
• Select the RTD sensor to be configured there is only one input on each I/O Board.
• Select the Variable that will represent this RTD input from the items listed in the pull down
tree.
• Set the Range extremes Maximum and Minimum values in degrees C, it is recommended
that these values are set approximately 20 degrees above and below the Range Max and min
values entered on the Stream set up pages.
Please be aware that the actual scaling of the inputs will be done in the configurator “Connect”
menu under “Calibrate inputs and outputs”. See volume 1.
5 .1 .4 Digital Inputs
Most I/O boards have 5 digital inputs, however the digital 2 board has 4 and the switch I/O board
has standard 6 digital inputs and optionally another 6 can be configured to be digital in- or out-
puts. For details see volume 1.
On every board, all digital inputs can be defined as switch (contact or status inputs). Inputs 1,
2 and 3 can also be defined as frequency, to measure frequency and count pulses. Input 1+2
can also be set as an API level A dual pulse for liquid meters. Please note that when Level A is
selected for input 1, input 2 is also assigned.