55
Addr
Inst
R/W
Host
R/W
Range
Description
Examples:
+5 ppm = register value of 00005
10
= $0005
-5 ppm = register value of 65531
10
= $FFFB
40103
R*
R*
MSB = $01 to
$FF
LSB = $01 to
$FF
Gas Type
Holds the decimal place holder and the
gas type code. The most significant byte
(MSB) holds the number of decimal places
to be used in calculations for this gas.
This decimal locator applies to all
subsequent values of gas readings within
other registers. This can be read by the
instrument. The least significant byte
(LSB) holds a code which identifies the
gas type. This can be read by the host.
MSB = Decimal place holder $01 to $FF
LSB = Gas type code $01 to $FF
$01
CO
Carbon Monoxide
$02
H
2
S
Hydrogen Sulfide
$03
SO
2
Sulfur Dioxide
$04
NO
2
Nitrogen Dioxide
$05
Cl
2
Chlorine
$06
ClO
2
Chlorine Dioxide
$07
HCN
Hydrogen Cyanide
$08
PH
3
Phosphine
$09
H
2
Hydrogen
$0B
CO
2
Carbon Dioxide
$0C
NO
Nitric Oxide
$0D
NH
3
Ammonia
$0E
HCl
Hydrogen Chloride
$14
O
2
Oxygen
$15
CH
4
Methane
$16
LEL
Lower Explosive Limit
(Combustible Gases)
$17
C
6
H
14
Hexane
$1A
C
5
H
12
Pentane
$1B
C
3
H
8
Propane
$4D
C
2
H
6
O
Ethanol
$50
C
2
H
4
Ethylene
$6F
C
3
H
6
Propylene
$C9
C
4
H
10
Butane
Examples:
Содержание iTrans 2
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Страница 19: ...19 Figure 2 5 Electronics Board for Remote Sensor...
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Страница 22: ...22 Figure 3 1 Mounting the Gas Monitor on a Wall Figure 3 2 Mounting the Gas Monitor on a Column Using U Bolts...
Страница 28: ...28 Figure 4 4 Wiring Diagram for a Single On board Sensor...
Страница 31: ...31 Figure 4 7 Wiring Remote Sensors Back to...
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Страница 72: ...72 Figure A 4 Wiring Diagram of Single Sensor HART Supported...
Страница 73: ...73 Figure A 5 Wiring Diagram of Dual Sensor HART Supported...
Страница 80: ...80 Figure A 15 EDD GUI View Figure A 16 PC to HART Interface Wiring Diagram...
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