Kurz
Instruments, Inc.
831-646-5911
2411 Garden Road
www.kurzinstruments.com
Monterey, CA 93940
360208-F 454FTB, 504FTB, 534FTB
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extract the event log
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extract the min-max events log
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extract the last 56 hours of trend data (provided the meter was not power
cycled in the last 56 hours)
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install new sensor calibration data.
The configuration file is a binary file. KzComm provides a function to create a text
readable version as an aid to check the current setup of the meter. The event log, min-
max log, and trend data are saved as .csv files that can be imported into a spreadsheet
such as MS Excel. These files are useful for troubleshooting purposes. Changing a
sensor’s calibration data is helpful if the application gas changes and a more accurate
measurement is needed. The sensor calibration data files are provided from Kurz
Instruments, Inc. as an option.
Field Calibration
This is the most difficult part of setting up an insertion flow meter. On the other hand, an
In-Line meter does not need this step as it is already calibrated to read flow with its area,
blockage and correction factors built in.
To perform a Field Calibration, a reference flow method is used to obtain the true flow
while monitoring the indicated flow from the meter. This is best left to experienced users
or professionals who know how to do it. See the manual for more information on Field
Calibration. The 2.xx version of firmware has an initial correction factor of 0.85 for
insertion meters to account for the average duct velocity profile. Earlier Kurz product
had this defaulted to 1.0
Output Setup
The meter output can be analog via the 4-20 mA output channel(s) or digital via the USB
or RS-485. The 4-20 mA hardware is pre-calibrated at the factory. You may optionally
re-calibrate with a 4 ½ digit multi-meter. This procedure is described in the manual. The
output range of the 4-20 mA needs to be specified. If the meter output is read from the
USB or RS-485 interface, parameters such as the protocol, baud rate, and device address
will need to be configured. The meter can be ordered with two independent solid state
relays which can be configured for a variety of functions, including meter alarms, pulsed
outputs, or sensor purge cleaning.
Serial Output.
The most common digital communications protocol used today is Modbus. It has been
around for decades and is well supported with many third party OPC servers that can be
configured to read parameters from our flow meters that are then used by client HMI or
SCADA programs on the same computer or network like Excel, Lookout, Wonderware,
