Dynamic Variables; Table 19: Device Variables According To Measured Product Type - Honeywell SLG 700 User Manual

7.7.6

Dynamic Variables

Table 19: Device variables according to measured product type

Single Liquid
Product Level
Prod Level %
Dist To Prod
Prod Lvl Rate
Product Volume
Vapor Thick
Vapor Thick %
Vapor Volume
The highlighted Volume measuring values are available only after activating the Volume
calculation, the method for Volume calculation has been selected and relevant tank data entered
by the user. This can be done through the Advanced Configuration menu.
In addition to converting the time of flight of reflected radar pulses into a measure of distance, the
SLG 700 transmitter can calculate a number of related process measurements, such as volume. In
many control systems these measurements are referred to simply as process variables, however,
in the terminology of the HART protocol they are referred to as Device Variables. In total 15
different process calculations are supported as outlined in Table 20
In a given installation, however, the actual number of measurements available is dependent on the
application and optional settings such as the additional configuration required for volume
measurements, as shown in Table 19
Revision 5
Two Liq Flooded
Intf Level
Intf Level %
Dist To Intf
Intf Lvl Rate
1
Upr Prod Thick
Lower Prod Vol
Upper Prod Vol
1
SLG 700 Series HART Option User's Manual
Two Liquid Non -Flooded
Product Level
Prod Level %
Dist To Prod
Prod Lvl Rate
Product Volume
1
Vapor Thick
1
Vapor Thick %
Vapor Volume
Intf Level
Intf Level %
Dist To Intf
Intf Lvl Rate
Upr Prod Thick
Lower Prod Vol
Upper Prod Vol
1
1
1
1
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