Prothermo NMT 538
30
Hauser Systems & Gauging
5.1.7
Additional parameter setting functions
Refer to each matrix position in G4 "TEMPERATURE" & G7 "ADJ SENSOR" matrix
ZERO ADJUSTMENT GVH471: default setting 0
The base line adjustment when the measured value need to be adjusted. i.e. Entering desired
value; for example, “2” when the NMT 538 indicates 23
°
C in compare to the reference
thermometer value indicates 25
°
C.
AVERAGING GVH478: default setting 2
Sampling number of average calculation. Can be increased up to 16 times depending on
instability of data acquisition by noise factor and others.
PREAMBLE NUMBER GVH483: default setting 5
Based on the HART protocol definition, selectable up to 16 preamble numbers, depending on the
condition of local HART communication.
TEMP. ELEM. SHORT GVH488: default value -49.5°C (-57.1°F)
Error display with a temp. value when an element or circuit is short. Set the desired value with "+"
or "-" key, then "E" to confirm.
TEMP. ELEM. OPEN GVH489: default value 359°C(679.1°F)
Error display with a temp. value when an element or circuit is open. Set the desired value with "+"
or "-" key, then "E" to confirm
OUTPUT AT ERROR GVH492: default value ON
"ON" to display short or open circuit value (-49.5 or 359) on HOME position and both average
temp. data (liquid & gas phase). Disable average calculation due to defected element or circuit
exist. "OFF" to enable average calculation with last available data. The matrix of individual
defected element number indicates short or open circuit information regardless.
CUSTODY TRANSFER GVH493: default setting OFF
A function to freeze set parameter of NMT538 once it is turned on. Needs to turn off when initial
parameter is required to over write
POLLING ADDRESS GVH494: default setting 2
Select other address with "+" or "-" key in case of connecting to any other HART device and require
changing the address.
5 Operation with the Proservo NMS53x
