De-Specific Configuration Parameters; Table 6 - De Configuration Parameters - Honeywell ST 800 Series User Manual

DE-Specific Configuration Parameters

Select the Configure button, and configure parameters according to Table 6.
Read (R) or
Parameter
Read/Write (R/W)
LRL
URL
LRV
URV
PV Units
SV Units
Sensor Type
Damping
Span
Conformity
Select the Back button to go back to the DE MAIN MENU.
Notes on Damping (Digital Noise Reduction)
You can adjust the damping time to reduce output noise. By way of suggestion, set damping to the
smallest value reasonable for your process.
The electrical noise effect on the output signal is partially related to the turndown ratio of the
Transmitter. As the turndown ratio increases, the peak-to-peak noise on the output signal increases.
You can use the following formula to find the turndown ratio using the range information for your
Turndown Ration =
Transmitter.
Note that ST 800 Transmitters are specified with a minimum of 100:1 turndown capability.
Page 16
Table 6 – DE Configuration Parameters
Configuration Details
R
Lower Range Limit, Floating Point
R
Upper Range Limit, Floating Point
R/W
Lower Range Value, Floating Point
R/W
Upper Range Value, Floating Point
Process Variable Units: scaling value selection; default = inches
R/W
o
H 0@39 F
2
R/W Secondary Variable scaling units:
R
Sensor type used in the Transmitter
R/W
Select digital noise reduction; (see note below)
R
Process Range: URV – LRV, Floating Point
Conformity: for the output calculation. Linear (pressure) or Square
R/W
Root (flow); (see note below)
(Upper Range Value − Lower Range Value)
ST 800 Series HART/DE Option User's Manual
o
C or
Upper Range Limit
o
F
Revision 5.0