Revised 10/12
3
TECHNICAL INFORMATION FOR CDM4160
1 0 0
V S S
V C C
T R B L
C T R L
C O N C
1 0 k
1 k
1 0 0
S - 8 9 1 2 0 A
( S I I )
D T A 1 2 3 J E
( R O H M )
D T C 1 2 3 J E
( R O H M )
J P 3
1 0 k
D / A
C o n v e r t e r
1 : V
I N
2 : V
C O N C
3 : C T R L
4 : T R B L
5 : G N D
M i c r o c o m p u t e r
CN1
MB5P-90S (JST)
Fig. 2 - Circuit diagram of interface for circuit
Table 1 - Specifications
Note 1:
Assumes benchmark is
set accuractely at 400ppm of CO
2
.
This value does not contain long
term drift.
Note 2:
In this module, the CO
2
concentration is calculated by
measuring the relative change of
sensor output at the measuring
point from sensor output in clean
air (assumed to be 400ppm of
CO
2
).
Item
Specification
Product name
Carbon dioxide (CO
2
) sensor module
Model No.
CDM4160-L00
CDM4160-M00
CDM4160-H00
Detection range
400 ~ 4,500ppm
400 ~ 9,000ppm
400 ~ 45,000ppm
Sensor
TGS4160 (solid state electrolyte)
Accuracy (*1)
approx. ±20%
Power supply
5.0±0.2V DC
Power consumption
1.3W (typical)
Inrush current
600mA (max)
Operational temperature
& humidity range
-10˚ ~ +50˚C, 5~95%RH
(avoid condensation)
Storage temperature
& humidity range
-20˚ ~ +60˚C, 5~90%RH
(pack in a moisture-proof bag)
Warm-up time
2 hours
CO
2
concentration
signal (*2)
Continuous analog output proportional to CO
2
concentration
V
CONC
=CO
2
conc/1000
(4.5V DC full scale)
V
CONC
=CO
2
conc/2000
(4.5V DC full scale)
V
CONC
=CO
2
conc/10000
(4.5V DC full scale)
Control signal
ON: HIGH output (when CO2 conc. exceeds threshold)
OFF: LOW output
800/1,000/1,500/2,000
(ppm)
1,000/2,000/5,000/8,000
(ppm)
5,000/10,000/20,00/40,000
(ppm)
Trouble signal
ON: LOW output (sensor trouble)
OFF: FLOAT NC
LED display
Green LED: Light while power is on (blinks during warm-up)
Yellow LED: Blinks during trouble
Red LED: Lights when CO
2
concentration exceeds the threshold
Reset switch
Establishes the ambient CO
2
concentration as 400ppm when pushed
Dimensions
45 x 60 x 31mm (45 x 67 x 31mm incl. CN1)
Weight
approx. 22g
