Operation
Prothermo NMT539
40
Hauser
Code
Display
Details
• Selects the level display unit. This applies to the display of
VH02 "Liquid level" and VH50 "WB". Based on the configuration
of HART, the available level units are: ft. (HART code: 44), m
(HART code: 45), inch (HART code: 47) and mm (HART code:
49).
• Leave this parameter in mm if you are changing the default
mm in the host gauge (NMS8x, NMR8x, NRF81, NMS5,
NMS7, NRF590, TMD1) to another unit.
VH85
Kind of Interval
(Element interval
configuration)
Item type
Selection
Default
Equal interval (NMT539 converter-only version)
Selection
Equal interval, unequal interval
Screen that selects the element interval. This function is used in the
NMT539 converter-only version.
L
CAUTION
Changing the parameters:
Do not change the default parameter on the NMT539 con
temperature probe version. The number of elements and the position
of each element is predetermined by the customer.
‣
Changing the default parameter may cause erroneous calculations
or unnecessary error displays. Do not change the parameters on
the NMT539 con temperature probe version other than for
repair purposes.
VH86
Bottom Point
(Position of the
bottom-point
element)
Item type
Read / Write
Default
500 mm (19.69 in)
Selection
0 to 99
999 mm
The position of the bottom-point element from the tank bottom
(element No.1) is entered. If "Equal interval" has been selected in
VH85, the position of element No.1 is extremely important, as the rest
of the elements' positions will be determined by the position of the
bottom-point element.
VH87
Element Interval
(Element interval)
Item type
Read / Write
Default
1
000 mm (39.37 in)(NMT539 converter-only
version)
Range
0 to 99
999 mm
Changing the element interval and setting the element position are
only applied to reconfigure switching points for average temperature
calculations. The physical positions of elements will not change.
The default setting is 1
000 mm (39.37 in) in the NMT539
converter-only version, but other default settings will depend on
the ordered specifications.
VH88
Short Error
(Output data from
element short circuit)
Item type
Read / Write
Default
–49.5
Range
–49.5 to 359.5
This data is output when the selected element short-circuits. The
display format can be configured in VH92 "Error Display Select."
VH89
Open Error
(Output data when
element is open)
Item type
Read / Write
Default
359.0
Range
–49.5 to 359.5
This data is output when the selected element is open. The display
format can be configured in VH92 "Error Display Select."
