Delta OHM HD2817T Series, Manual

Page: 5 / 64

5
4. Description of the display
The display constantly shows three measurements (lines 3, 4 and 5 in the figure)
associated to the A1, A2 and A3 analog outputs, respectively:
the physical quantity associated to the analog output A1 is shown on line (3),
the physical quantity associated to the analog output A2 is shown on line (4),
the physical quantity associated to the analog output A3 is shown on line (5).
Each line can show relative humidity, absolute humidity, mixing ratio, dew point, wet bulb
temperature or temperature.
The temperature can be expressed in Celsius or Fahrenheit degrees.
The first display line (1) shows the current date and time.
The auxiliary indications are shown on line (2): e.g. MAX, MIN or AVG functions when pressing
the FUNC key activating the maximum, minimum and average measurements.
To change the temperature unit of measurement between Centigrade or Fahrenheit, press the
UNIT key.
To show a physical quantity in one of the three lines , you can use the “ Conf. OUT ” >>
“ Output Analog 1-2-3 ” >> “ Analog Output x ” menu item, with x = 1, 2 or 3.
Procedure:
1. Press the MENU key. The main menu opens.
2. Use the
 
arrows to select “ Conf_OUT ” and confirm with ENTER.
3. Use the
 
arrows to select “ Output Analog 1-2-3 ” and confirm with ENTER.
4. Use the
 
arrows to select “ Current/Voltage out ” and confirm with ENTER.
5. Use the
 
arrows to select the type of analog output: “ 4...20mA/2...10Vdc ” or
“ 0...20mA/0...10Vdc ”. Confirm by pressing ENTER. The asterisk will indicate your new
selection. Press ESC to return to the previous menu;
6. Use the
 
arrows to select one of the three analog outputs and confirm with ENTER.
The analog output 1 controls the physical quantity shown on line (3), the analog output 2
on line (4) and the analog output 3 on line (5).
7. A screen with two items will appear: “ Mode ” and “ Range values ”.
8. Use the
 
arrows to select “ Mode ” and confirm with ENTER.
9. Use the
 
arrows to select the physical quantity to be associated to the analog output
and confirm with ENTER:
RH Rel. Humidity corresponds to relative humidity,
AH Abs. Humidity corresponds to absolute humidity,
MR Mixing ratio corresponds to mixing ratio,
Td Dew Point Temp. corresponds to dew point,
T Temperature corresponds to temperature,
TW Wet bulb temp. corresponds to the wet bulb temperature.
The asterisk will indicate your new selection. Press ESC to return to the previous menu.