OWDMANUAL 1114
KAM CONTROLS, INC.
25
HOW TO CALIBRATE THE KAM
®
OWD
®
USING BRINE AND DRY OIL
Though the OWD has been calibrated in the factory, it should be calibrated in process conditions prior to use. This
can be done using 100% brine (produced water) and 100% dry oil in buckets as outlined below, or it can be done
with online sampling. For the brine/dry oil method, in addition to fluid samples, operators will need
appropriate tools for the extraction of the OWD, an RS232 cable (supplied) or an RS232/USB adapter, and a PC
equipped with Hyperterminal software.
K A M O W D O P E R AT I O N C O N T I N U E D
ON-LINE CALIBRATION OF THE KAM
®
OWD
®
Connect PC to the OWD sensor via supplied RS232 serial port or RS232/USB adapter. Launch
Hyperterminal and hit ENTER. For Hyperterminal setup, see page 21.
Take an accurate (fully homogenous) sample from the pipeline close to the sensor location on the pipeline,
and at the same time type "L" for calibration in the Hyperterminal and hit ENTER. A "Water %" prompt will
appear.
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PLEASE NOTE: The following calibration steps should only be conducted during initial installation with process con-
ditions, when process conditions have changed, or when OWD readings indicate a slight drift off acceptable accura-
cies. You will need an RS232 cable (supplied) or an RS232/USB adapter, a PC equipped with
Hyperterminal software, and a means for collected and measuring samples.
If the OWD has been installed, remove from the line according to the instructions on page 16 for insertable mod-
els and page 18 for models installed on fast loops and ML Measurement Loops. Clean the OWD sensor accord-
ing the guidelines on page 28 of this manual.
Restore power to the OWD and connect to a PC via RS232 or RS232/USB adapter. Initiate Hyperterminal setup.
For information on setting up Hyperterminal software, see page 21.
Let the OWD sensor warm up for 20 minutes.
Insert the sensor in a bucket with brine (produced water). Probe should remain in brine until a stabilized tem-
perature is observed. Readings should show 100% water in the Hyperterminal. As all water in crude oil has salt,
the OWD sensor has already been calibrated for salt water. You will not get an accurate reading if you use fresh
water for testing. It should also show 20mA if the mA range is calibrated for 0-100% which you can measure at
the output terminal. Regardless of readings, the sensor should be recalibrated.
Enter "L" on the Hyperterminal interface and hit ENTER. A "Water %" prompt will appear. Enter "100." Hit ENTER.
Type "s," then ENTER to save.
Remove probe from brine, and thoroughly clean and dry the probe.
Insert the OWD sensor into a bucket or a jar filled with a sample of dry oil. In order to accurately test the OWD
sensor, you must use oil that does not have any water in it or which has a known, low percentage
of water. The water percentage reading in the Hyperterminal should show 0% or reflect the known water
percentage.
Enter "L" on the Hyperterminal interface. A "Water %" prompt will appear. Enter "0" or the known percentage of
water. Hit ENTER. Type "s," then ENTER to save.
The OWD has now been calibrated to process conditions and can be installed.
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