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VOCs Sensor (GSBT11)

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Quick Information

  • Model Number :GSBT11
  • Place of Origin :Korea

Description

VOCs Sensor

  • for the detection of Formaldehyde Toluene, Organic Solvent
  • Semi conductor type

General
It is applied detection of VOCs gases (toluene, formaldehyde, benzene, etc.)

Application
Ventilator, Air cleaner, Hood

Operation range

  • Working temperature : -10°C ~ 50°C
  • Working humidity : below saturation point
  • Storage temperature : -20°C ~ 80°C

Products characteristics

Product code
Characteristics
Output data
Warm-up time, PH
Package
GSBT11
Wide detection of VOCs gases
Application : Air cleaner, Hood
Analogue (1 ~ 5Volt)
Basic circuit
5min
350mW
GSBT12
Wide detection of VOCs gases
Application : Air cleaner, Hood
3min
420mW
Module
GSBT11
-P1XX
Standard, Op-amp amplifying
Relay output : fixed concentration
Analogue (0.5 ~ 5Volt)
Relay : Hi(4V), Low(0V)
5min
380mW
GSBT12
-P3XX
μ-processor control, Digital output
Relay output, Open collect
Digital (RS232, ppm)
Relay : Open collect
1min
470mW

1. Sensitivity Characteristic Slope(β = Rs,gas / Rs,air)

2. Basic Measuring Circuit Stability

3. Specifications
3.1 Package(sensor)
a.Characteristics

Index
Spec. & test condition
GSBT11
GSBT12
Circuit
Voltage
Vc
Sensor input Voltage :1~12Volt, Sensor Resistance : refer to Rank table
VH
Heater input voltage : 5volt±1%
Heater Resistance : 31.0Ω±0.2Ω
Heater input voltage : 5volt±1%
Heater Resistance : 27.0Ω±0.2Ω
PH
Power consumption : Less than350mW
Inrush current : Less than 165mA
Power consumption : Less than420mW
Inrush current : Less than 185mA
Sensitivity
(β)
Gas
*TMA
Acetaldehyde
Alcohol
 
Con.
0.1ppm
1ppm
10ppm
 
β
0.6
0.4
0.17
 
Guarantee
-3years
-Calibration interval 1years recommended
Operating
environment
- Temp. : -20 ~ 50°C, Humidity : 5 ~ 90%RH, Non-condensing
- Storage → Temp. : -10 ~70°C, Humidity : 0 ~90%RH
Reaction time
(T90)
- Reaction Time(T90) : Less then 10sec
- Recovering Time(T90) : Less then 30sec
*TMA :Trimethylamine,
*Sensitivity (β) = Rs,gas / Rs,air
- Rs,gas : output resistance after gas inlet, - Rs,air : output resistance in special air
*T90 : 90% of saturation point

b. Sensor Resistance (Only package) Rank Table(No.: GA-30)

Rrank
RL
Rs
Rank
RL
Rs
Rank
RL
Rs
30A
0.30kΩ
1.0~1.5kΩ
30D
1.00kΩ
3.5~5.0kΩ
30G
3.90kΩ
12.5~20.4kΩ
30B
0.43kΩ
1.5~2.2kΩ
30E
1.50kΩ
5.0~7.8kΩ
30H
6.20kΩ
20.4~32.5kΩ
30C
0.68kΩ
2.2~3.5kΩ
30F
2.40kΩ
7.8~12.5kΩ
30I
10.0kΩ
32.5~52.5kΩ

c. Sensor connection
-Be connected to "Basic measuring circuit('2')" after select Sensor resistance (Rs) and RL
(reference '3.1-b')

d. Product code

e. Characteristics (Package)

GSBT11

  • Error : ±15%
  • No compensation of Humidity & temperature

Stand. → RL : 3.9kΩ, Sensor resistance : 15.6kΩ
Vout,air : 1.0volt (input voltage 5volt)

Formaldehyde 100322
Toluene 100322
Con.
(ppm)
Output
(Volt)
Con.
(ppm)
Output
(Volt)
Con.
(ppm)
Output
(Volt)
Con.
(ppm)
Output
(Volt)
0
5
10
15
20
25
30
35
40
45
50
60
1.00
1.90
2.06
2.17
2.26
2.33
2.39
2.45
2.49
2.54
2.58
2.66
70
80
90
100
120
140
160
180
200
250
300
350
2.72
2.79
2.84
2.89
2.99
3.07
3.15
3.22
3.29
3.44
3.58
3.70
0
5
10
15
20
25
30
35
40
45
50
60
1.00
2.62
2.75
2.83
2.89
2.94
2.98
3.02
3.05
3.08
3.10
3.15
70
80
90
100
120
140
160
180
200
250
300
350
3.19
3.22
3.26
3.28
3.34
3.38
3.42
3.45
3.49
3.56
3.62
3.67

** Formulation of Formaldehyde
Log(ppm) = (-0.883) + 0.972 * (Vout)
Lpg(ppm) = (-3.665) + 3.009 * (Vout) + (.0.362) * (Vout)2
** Formulation of Toluene
Log(ppm) = (-3.672) + 1.717 * (Vout)
Log(ppm) = (-9.234) + 5.249 * (Vout) + (-0.557) * (Vout)2

3.2 Module
a. Characteristics

Index
Spec. & test condition
GSBT11-P1XX
GSBT12-P3XX
Circuit
Voltage
Vc
Module input Voltage : 5±0.1Volt
PH
Power consumption : Less than 380mW
Inrush current : Less than 195mA
Power consumption : Less than 450mW
Inrush current : Less than 215mA
Characteristics
of Output data
-Analogue output (refer to 3.1, f.)
-Relay output (Special ppm)
-Digital output ppm(Open collect)
Guarantee
-3years over
-Calibration interval 1years recommended
Operating
environment
- Temp. : -10 ~ 50°C, Humidity : 5 ~ 90%RH, Non-condensing
- Storage → Temp. : -20 ~70°C, Humidity : 0 ~90%RH
Reaction time
(T90)
- Reaction Time(T90) : Less then 10sec
- Recovering Time(T90) : Less then 180sec

b. Product code

C. Ralay Output : Max. Output range 1ppm : Hi(4.0~4.1 volt) output at 1ppm(Toluene)

d. Characteristics (Module)

  • Error : ±7%
  • No compensation of Humidity & temperature
Formaldehyde 100322
Toluene 100322
Con.
(ppm)
Output
(Volt)
Con.
(ppm)
Output
(Volt)
Con.
(ppm)
Output
(Volt)
Con.
(ppm)
Output
(Volt)
0
1
2
3
4
5
6
7
8
9
10
15
0.64
2.10
2.38
2.57
2.71
2.82
2.92
3.01
3.09
3.16
3.22
3.49
20
25
30
35
40
45
50
55
60
65
70
75
3.69
3.87
4.02
4.15
4.27
4.38
4.48
4.57
4.66
4.74
4.85
4.90
0
1
2
3
4
5
6
7
8
9
10
15
0.60
3.27
3.47
3.60
3.69
3.77
3.83
3.88
3.93
3.98
4.01
4.17
20
25
30
35
40
45
50
55
60
65
70
75
4.29
4.38
4.46
4.53
4.59
4.65
4.70
4.75
4.79
4.83
4.86
4.90

** Formulation of Formaldehyde
Log(ppm) = (-1.095) + 0.627 * (Vout)
Log(ppm) = (-2.631) + 1.528 * (Vout) + (.0.125) * (Vout)2
** Formulation of Toluene
Log(ppm) = (-3.478) + 1.104 * (Vout)
Log(ppm) = (-7.071) + 2.852 * (Vout) + (.0.210) * (Vout)2

e. Product code

(1) Division Circuit → 1:standard circuit 2:Precision grade 3:Micro-processor
(2) Gas sensing range → 1:50ppm(Toluene), 2:200ppm
(3) Connector → 0:None 1:Straight 2:Angle 3:Opposite angle

f. Relay Output Max. Output range 1ppm : Hi(4.0~4.1volt) output at 1ppm(Toluene)

4. Structure and Dimensions

4.1 Package

4.2 Pack module

a. Data ourput

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  • VOCs Sensor (GSBT11)

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VOCs Sensor (GSBT11)

VOCs Sensor (GSBT11)

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Ogam Technology Co., Ltd.
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