Page 3
3.2
C
ALIBRATION OVERVIEW
---------------------------------------------------------------------------------------------------------11
3.3
V
ERIFICATION OF ACCURACY
----------------------------------------------------------------------------------------------------11
3.3.1
Fresh air "zero" in contaminated air _________________________________________________ 12
3.4
E
FFECT OF CONTAMINANTS ON
Z
ONE
G
UARD SENSORS
--------------------------------------------------------------------12
3.4.1
Effects of contaminants on oxygen sensors ___________________________________________ 12
3.4.2
Effects of contaminants on combustible sensors _______________________________________ 12
3.4.2.1
Effects of high concentrations of combustible gas on the combustible sensor...........................12
3.4.3
Effects of contaminants on toxic gas sensors__________________________________________ 13
3.5
F
UNCTIONAL
(
BUMP
)
TEST
-------------------------------------------------------------------------------------------------------13
3.6
A
UTO
-
CALIBRATION
---------------------------------------------------------------------------------------------------------------13
3.6.1
Fresh air "zero" auto-calibration sequence ____________________________________________ 14
3.6.1.1
Reading “Too High” or “Too Low” for zero adjust......................................................................14
3.6.2
“Span” auto-calibration sequence ___________________________________________________ 14
3.7
M
ANUAL CALIBRATION PROCEDURE
--------------------------------------------------------------------------------------------15
3.7.1
Manual Fresh air "zero" through keypad buttons _______________________________________ 15
3.7.2
“Manual” span calibration through keypad buttons ______________________________________ 15
3.7.3
Manual true zero span calibration for oxygen sensors ___________________________________ 16
CHAPTER 4.
SETTING ALARM LEVELS.....................................................................17
4.1
A
LARM ADJUSTMENT SEQUENCE
-----------------------------------------------------------------------------------------------17
4.2
R
ESTORING THE FACTORY DEFAULT ALARM SETTINGS
---------------------------------------------------------------------18
4.3
A
LARM
T
EST FUNCTION
----------------------------------------------------------------------------------------------------------18
CHAPTER 5.
ADVANCED FUNCTIONS .......................................................................19
5.1
Z
ONE
G
UARD
A
DVANCED FEATURES OVERVIEW
------------------------------------------------------------------------------19
5.2
R
E
-
SETTING THE CALIBRATION GAS CONCENTRATION
----------------------------------------------------------------------19
APPENDICES...................................................................................................................20
A
PPENDIX
A
Z
ONE
G
UARD FIXED GAS DETECTION SYSTEM ORDERING INFORMATION
----------------------------------------20
A
PPENDIX
B
Z
ONE
G
UARD FIXED GAS DETECTION SYSTEM TECHNICAL SPECIFICATIONS
------------------------------------21
A
PPENDIX
C
Z
ONE
G
UARD DEFAULT ALARM SETTINGS
---------------------------------------------------------------------------22
A
PPENDIX
D
Z
ONE
G
UARD SENSOR RANGES
---------------------------------------------------------------------------------------22
A
PPENDIX
E
Z
ONE
G
UARD TOXIC SENSOR CROSS SENSITIVITY DATA
-----------------------------------------------------------22
A
PPENDIX
F
Z
ONE
G
UARD DIMENSIONAL DRAWINGS
,
ELECTRICAL SCHEMATICS
,
AND WIRING DIAGRAMS
----------------23
A
PPENDIX
G
C
ALIBRATION
F
REQUENCY
--------------------------------------------------------------------------------------------26
BIOSYSTEMS STANDARD WARRANTY GAS DETECTION PRODUCTS ....................27
