dIPx
Decimal point
position
dIPx is set to select display resolution for channel x
for linear inputs, the corresponding display resolution of
dIP=0,1,2,3 are 0, 0.0, 0.00 and 0.000
for thermocouple or RTD inputs, when dIP=0, the display
resolution is 1
℃
; when dIP=1, the resolution is 0.1
℃
.
Note: dIP only affects the display, and has no effect on
internal data.
0~3
dILx
Scale low limit
dIL and dLH define the corresponding scale range of linear
inputs such as mV, 0~5V, 1~5V, 0~10mA, 4~20mA.
When the temperature input is retransmitted, dIL/dIH also
defined the low/high limit of temperature.
For example, a pressure transmitter transfers the pressure
to standard 1~5V signal and sends to input channel 1.
The input of 1V indicates the pressure=0, and 5V indicates
the pressure=1MPa, and expected display resolution is
0.001MPa. Then the parameters should be set as below:
Sn1=33, dIP1=3, dIL1=0.000, dIH1=1.000
-9990~+30000
units or 0.1
℃
dIHx
Scale high limit
Scx Input
offset
For thermocouple or three-wire RTD inputs, the units of Sc
is 0.1
℃
. For example, when Sc=-100, the actual
offset=-10
℃
, then the measured temperature will be 10
℃
lower than that when Sc=0.
For two-wire RTD inputs, the actual offset = (Sc x signal
unit). The signal unit of Pt100 or 0~400ohm input is
0.02ohm, and that of Cu50 or 0~240ohm input is
0.012ohm. For example, when Sc=-50, input type is
Pt100, (-50 x 0.02ohm), then the actual offset= -1.
-1999~+4000
units or 0.1
℃
dLx Digital
filter
The value of dF will determine the ability of filtering noise.
dL=0, no filtering;
dL=1, filtering with mean;
dL=2~40, filtering with mean and integral.
When a large value is set, the measurement input is
stabilized but the response speed is slow. Generally, it
can be set to 1 to 3.
If great interference exists, then you can increase
parameter dF gradually to make momentary fluctuation of
measured value less than 2 to 5.
When the instrument is being metrological verified, dF can
be set to 0 or 1 to shorten the response time.
0~40
