PP Systems EGM-4, Руководство оператора

Страница: 22 / 54

Operation
EGM-4 Operator's Manual – Version 4.19
- 22 -
Changing Plot Number
If the plot number needs to be changed, press key N when Display 2 above is shown and
enter the plot number desired. Next, press the Y key to continue. To return to Display 1
press key 8/X twice. Only the plot number can be changed at this point and the record
number automatically resets to 1 when the plot number changes.
Environmental Monitor (Probe Types 1-6 and 10)
Immediately after pressing key 1, the instrument will automatically perform a zero check.
Once completed and assuming no problems with the zero, the instrument will proceed to
“Measurement Mode” where the CO
2
value (plus optional %RH/Temp sensor is present) and
sensor values are displayed as follows ( Display 1 ):
Where:
C CO
2
concentration (ppm)
H Humidity (mb). Only if optional humidity sensor is present.
T Air Temperature (
o
C)
Q PAR (µmol m
-2
s
-1
)
RH Relative Humidity (%). If the optional humidity sensor is fitted to the EGM-4,
press key 8/X to see the humidity displayed in mb.
Note. If the instrument was just powered up, the display will show “WARM UP DELAY
TEMPERATURE = XX” until t
he instrument achieves its warm up temperature of 50 ˚C prior
to entering into Measurement Mode.
Press key 8/X to view record number, plot number, date and time (
Display 2 ):
Where:
REC Record Number (up to 9999).
PLOT Plot Number (up to 99)
03-04 Date (3
rd
day of April)
12:40 Time (12:40 PM)
The record number resets each time the instrument starts or when the memory is cleared. It
counts up to 9999 and then resets automatically to 1. The internal EGM-4 memory allows
data storage of up to 1,250 records.
Please note, when the memory is full, it overwrites
the oldest records.
The Plot Number can be changed as explained in the section Changing Plot Number on page
22.
Additional information may also be viewed on the LCD display. While in Measurement Mode
with the CO
2
concentration and sensor data displayed, subsequent presses of the 8/X key will
show additional displays as outlined in Measurement Mode Display Structure on page 21.
C 365 T24.3
Q 1200 RH 65.3
REC 0001 PLOT 00
03-04 12:40