Operation
EGM-4 Operator's Manual – Version 4.19
- 30 -
2SET
Press key 2 from the Main Menu if you need to:
•
Select/change probe types used with the EGM-4 (
on page 30).
•
Select/change the EGM-4 Zero (
on page 31).
•
Enable/disable sampling pump (
on page 32).
•
Determines within which range of outputs the average is to be taken (
on page 32).
•
Change the instrument recording feature, automatic vs. manual (
on page 33).
•
To set the high and low alarm (
on page 33).
•
To change the analog voltage output, 1-5V,
on page 34).
1EGM
Press 1EGM to set the EGM-4 displays according to intended application.
Where:
:MV
EGM-4 set to analyzer only with auxiliary inputs displayed in mv. Probe type
should be set to 0 in this case.
0
Probe Type (See Probe Types table below).
Y
Press Y if the settings are correct.
N
Press N to change the Probe Type
The EGM-4 is quite versatile and can be used as a stand alone gas analyzer, part of an
environmental monitoring system when used with any of our available sensors (i.e. TRP-2,
SRC-1 Soil Respiration Chamber, CPY-4 Canopy Assimilation Chamber, etc.) or as a steady
state porometer.
To change the probe type from the current setting:
1. Press key N 3 times until ?? appears next to PROBE.
2. Enter the probe type (use leading 0’s for single digit probe types).
3. Press key Y to save.
4. Press key N to return to Main Menu.
Probe Types
Probe Type
PP Systems Sensor
0
The EGM-4 is being used as a stand alone IRGA (no external sensors
connected)
1
STP-1 Soil Temperature Probe
2
Not Applicable. Used to be used with older sensors.
3
TRP-1/TRP-2 Temperature/PAR Probe
4
PAR-1/PAR Sensor
5
Not Applicable. Used to be used with older sensors.
6
Not Applicable. Used to be used with older sensors.
7
Steady State Porometer (PMR-5)
8
SRC-1 Soil Respiration Chamber or CPY-2/CPY-4 Canopy
Assmiliation Chamber (Closed System operation)
9
OP-1/OP-2 O
2
Sensor
10
Not Applicable. Used to be used with older sensors.
1EGM2Z: 3PMP 4AV
5RECD 6ALM 7VOUT
:MV 0:PROBE
Y=OK N=CHANGE
