The following table gives the program mode parameters and their sequence.
Primary
Display
Identifier
Flashing)
Description Adjustment
Range
STATUS
Scaling Point 1. The first sensor input value point
(expressed as a percentage of input span) which is
used to establish a curve for scaling sensor input
values into engineering unit values (°C or °F)
0.00% to
100.00% of
input span
Factory setting.
Do not change.
Display Point 1. The engineering unit value
corresponding to Scaling Point 1.
-19999 to
19999
Factory setting.
Do not change
Scaling Point 2. The first sensor input value point
(expressed as a percentage of input span) which is
used to establish a curve for scaling sensor input
values into engineering unit values (°C or °F)
0.00% to
100.00% of
input span
Factory setting.
Do not change
Display Point 2. The engineering unit value
corresponding to Scaling Point 2.
-19999 to
19999
Factory setting.
Do not change
The scaling process can be continued up to 10 Scaling Points and 10 Display Points, until a scaling point is given
the value 100.0%. This will be the final scaling point offered. Note, the hygrometer only allows Scaling Point 1
≤ Scaling Point 2 ≤ Scaling Point 3 etc.
Decimal Point Position. Defines the decimal point
position for the dewpoint display and alarm values.
0 to 0.0000 Factory setting.
Do not change
Re-transmission Scale Minimum. The lower end of
the linear scale for the re-transmission output,
expressed as the value corresponding to the
minimum output signal.
-19999 to
19999
User adjustable
setting.
Re-transmission Scale Maximum. The upper end of
the linear scale for the re-transmission output,
expressed as the value corresponding to the
mamimum output signal.
-19999 to
19999
User adjustable
setting.
Offset. Offsets the input by a fixed amount. -19999 to
19999
Not normally
required.
Input Filter Time Constant. Filters the input over a
user definable time period to minimise the effect of
noise and impulses
0.0 (OFF) to
100.0
Normally set to
zero. User
settable in noisy
environments
Communication Address. The unique serial
communications address of the hygrometer
1 to 99 User adjustable
setting.
Baud Rate. Serial Communications speed 1200, 2400,
4800 or 9600
User adjustable
setting.
Red
Green
Green to
Red
Display Colour Change. Defines the colour of the
primary and secondary displays prior to/after the
alarm level is reached
Red to
Green
User adjustable
setting.
Enabled
Alarm Lock. Enables/Disables the changing of alarm
settings via the front panel.
Disabled
User adjustable
setting
.
Yes
Help Prompt. Determines whether the Primary
Display shows the parameter description for 3
seconds before a parameter value is shown.
No
User adjustable
setting.
Remember that if Help is enabled, the Primary Display shows the Displays given above and
the parameter value after three seconds.
dewTEC DS2000 User’s Manual Page 15
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