Operation
EGM-4 Operator's Manual – Version 4.19
- 40 -
DC (Change in CO
2
concentration )
ppm
DT (Change in time)
seconds
+/-
In column H, if 00 is output, this represents increase in
CO
2
(respiration). If it is 01, it represents CO
2
uptake).
In column G, a flow multiplier is output to provide true flow rate (1 or 10).
Error Cod
es
Error code information is stored and output with data and can be located at the end of the
data string. The following is a list of current Error Codes:
Error
Code
Description
Possible Faults
Remedy
00
Normal Operation
Not Applicable
Not Applicable
01
Zero read to low
(<2500)
•
Pump Failure
•
Absorber column not
properly fitted.
•
Exhausted soda lime.
•
Zero valve failure.
•
Source/detector failure.
•
Refer to
on page 51.
•
Fit properly into
manifold.
•
Change soda lime.
•
Contact PP Systems.
(see
on page 7)
•
Contact PP Systems.
(see
on page 7)
02
CO
2
less than 250
ppm
•
Pump failure
•
Genuine low CO
2
concentration.
•
Absorber column not
properly fitted.
•
Exhausted soda lime.
•
Zero valve failure.
•
Source/detector failure.
•
Refer to
on page 51.
•
Not Applicable.
•
Fit properly into
manifold.
•
Change soda lime.
•
Contact PP Systems.
(see
on page 7)
•
Contact PP Systems.
(see
on page 7)
03
Analyzer
temperature < 50 ˚C
•
Possible thermostat
failure.
•
Contact PP Systems.
(see
on page 7)
04
Analyzer
temperature > 60 ˚C
•
Possible thermostat
failure.
•
Contact PP Systems.
(see
on page 7)
