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HygroPort I.S. User's Manual
2.4.1 Display Units
The instrument can display the measured
reading in a number of different units
as follows: °C, °F, K dewpoint and gas
temperature; ppm
and g/kg for air, N
v
H
, CO
, SF
; ppm
, lb/MMscf and g/m
2
2
6
V
natural gas, ppm
g/m
V,
Content (ppm
) and (ppm
W
Dewpoint at pressure (°C, °F or K).
To toggle between displayed units,
press either the scroll up or scroll down
Figure 2.5
key.
illustrates an example
showing the method of changing display
units from Dewpoint to Absolute
Humidity.
2.5
Main Menu
All instrument settings are made from a top level Settings menu which is accessible
from the Main Display. This menu is accessed from the Main Display by pressing the
Enter key. On the f i irst occasion after instrument is turned on the passcode entry
screen is displayed. The passcode PIN, 7316, must then be entered.
NOTE: After 10 seconds of inactivity, the keyboard is locked.
press any key.
Figure 2.6
shows the entry sequence. This f l l lowchart and all other flowchartscharts in
this handbook should be read from top to bottom and left to right.
With the first digit of the passcode entry screen highlighted in reverse video, enter the
first digit (7) by pressing the (down) key three times. (Pressing the
times would have the same effect.) Press the Enter key to accept this entry and move
to the next digit position.
Enter the second digit by pressing the
video and again press the Enter key to accept the second digit and move the cursor to
the third digit position.
Repeat this procedure, following
been entered. On successful entry of the last digit (6), the top level Main Menu is
displayed.
If the passcode is incorrectly entered, the passcode screen is displayed, showing the
entries that have been made and the input cursor is placed over the first digit. To
accept any digit as correct and to step to the next digit position, press the Enter key.
Change the incorrect entry, using either the
correct PIN has been entered, the top level Main Menu will be displayed.
Issue 6, December 2019
,
2
3
for
3
, %RH, Moisture
) and Calculated
V
(up) key three times, to display 3 in reverse
Figure 2.6
10
Dewpoint
7.8
°C
Measurement OK
Absolute Humidity
g/m
8.133
Measurement OK
Figure 2.5
Change display units
, until all the passcode digits have
(up) or (down) keys and when a
Kahn Instruments
Internal
12.7
°C Temp.
Internal
3
12.7
°C Temp.
To unlock,
(up) key seven
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