LRWMANUAL 0321
KAM CONTROLS, INC.
30
K A M L R W O P E R AT I O N R E A LT E R M C O N T I N U E D
FIG. 4-14
DENSITY INPUT VERIFICATION AND RE-CONFIGURATION
Density input values are configured at the factory according to information provided by the customer. These values
must match output values from the mass flow meter/densitometer for accurate operation of the LRW.
KAM Controls recommends contacting the factory before changing these settings.
Before proceeding, install and configure RealTerm as per instructions on pages 19–21 of this manual. Ensure your
PC is connected to the LRW sensor via the supplied RS232 serial cable and USB-to-serial converter as per wiring
diagram on page 12. To access the boards, unscrew the cover from the Explosion Proof electronics enclosure,
unscrew the LCD Display plate and carefully unplug the LCD connector.
1.
Launch RealTerm. Verify the low and high end of the density loop by typing "?ppv" in the command port and
clicking on "Send ASCII." The parameters will show the current values for 4mA and 20mA with their respective
units (API or g/cm3). FIG. 4-14.
2.
If the density is disabled, enable it by typing the command "=don" and clicking on "Send ASCII." FIG. 4-15.
The density input should only be disabled in situations where process density remains constant. Density can be
disabled by typing "=doff" and clicking on "Send ASCII."
FIG. 4-15
