Ref Definition; Product Option - envea CAIRSENS PM Série Notice Technique

7

REF definition

7.1

Product option

The REF 8 bytes represents the Cairsens reference.
It allows to address individually and directly to a Cairsens, when in a network, several Cairsens are
linked to a unique concentrator card.
The reference is included in every query with the Cairsens to allow an individual addressing, as only
the concerned Cairsens will answer to the query.
FF FF FF FF FF FF FF FF is a generic address allowing to communicate with any product without
knowing its reference.
of course in this situation, it has to be used with only one Cairsens linked to the host, to avoid any
BUS corruption as all sensors will respond.
First byte is the product ID :
C = CAIRCLIP
D = CAIRSPM
H = CairClip H2S 200ppm
M = CairClip H2S 20ppm
L = CairClip H2S 2ppm
The reference is an 8 bytes series coded as follows: XX YY ZZ AA 00 00 00 00
XX
YY
ZZ
AA
00 00 00 00
7.2 Coefficient
For each sensor, you must use a multiplicative coefficient to get the final value :
Sensor
CO 20ppm
NMVOC 16ppm
H2S 1ppm
H2S 200ppm
H2S 20ppm
H2S 2ppm
NH3 25ppm
O3 1ppm
O3 250ppb
SO2 1ppm
© 2016 Cairpol
(new for particulates data and battery management)
Product ID C=0x43 D=0x44
Gas identification
Measure Range
Interface Type
serial number
Code
COV
CIV
CHM
CHV
CHV or HHV
CHV or MHV
CAV or LHV
CCM
CCB
CSM
coefficient
1
1
4
10
1
1
100
4
1
4
REF definition 7