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968-038

P1-P3P4-P6P7-P8
DGS-SO2 968-038
March 2017
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the SPEC Copyright © 2011-2017, SPEC Sensors LLC
Sensors standard warranty. Production processing does not
necessarily include testing of all parameters.
Digital Gas Sensor – Sulfur Dioxide
SULFUR DIOXIDE APPLICATIONS
• Air Purification Control
• Air Quality Monitoring
• Industrial Safety Sensing
BENEFITS
Low Power – 1 mW @ 1 minute sampling
Calibrated & Temp. Compensated Output
Fast Response < 30 seconds
Simple Digital UART Interface
Integrated T & RH Sensors
Robust 10-year Estimated Lifetime
ROHS Compliant
Small form Factor
UART to USB adapter provided
Lightweight (< 2 oz.)
DESCRIPTION
SPEC Sensors now offers an easy way to add gas sensing to the Internet of Things. Combining our Screen
Printed ElectroChemical sensor technology (SPEC Sensor™) with state-of-the-art electronics and
algorithms, enables easy integration of small, lightweight, high performance, ultra-low power consumption
gas sensing into wireless, portable, and networked solutions.
MEASUREMENT PERFORMANCE CHARACTERISTICS
Based on Standard Conditions 25 ºC, 50% RH and 1 atm
Measurement Range
0 to 20 ppm
Resolution
50 ppb (1)
Measurement Accuracy
15% of reading
Measurement Repeatability (2)
< ± 3% of reading
T90 Response Time (100 ppm step)
< 30 seconds
Power Consumption
1 mW for 1 minute triggered samples
12 mW for continuous sampling 5, 10 30, 60 second intervals
Expected Operating Life
> 5 years (10 years @ 25± 10C; 60 ± 30% RH)
Operating Temperature Range
-20 to 40 °C (-30 to 55 °C intermittent)
Operating Humidity Range
15 to 95% (0 to 100% non-condensing intermittent)
Mechanical Dimensions
1.75 x 0.82 x 0.35 in. (44.5 x 20.8 x 8.9 mm)
Weight
< 2 Ounces
NOTES:
1) Based on Standard Deviation of noise at zero, 1 Hz measurement 60 second averaging.
2) When zeroed after 60 minutes of power-on stabilization
3) Based on consecutive measurements of 100 ppm
4) Contact factory for custom calibration for improved measurement performance
DGS-SO2 968-038
March 2017
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the SPEC Copyright © 2011-2017, SPEC Sensors LLC
Sensors standard warranty. Production processing does not
necessarily include testing of all parameters.
ABSOLUTE MAXIMUM RATINGS
Parameter
Conditions
Min.
Max.
Units
Maximum Concentration
Short term exposure
0
5000
ppm
Supply Voltage
Regulated
2.6
3.6
V
Storage Temperature
Vapor sealed @ 50% RH
5
30
̊C
Storage Humidity
Non-condensing, vapor sealed
20
80
% RH
Storage Pressure
Vapor sealed
0.8
1.2
atm
Storage Time
Vapor sealed
-
-
Months
Operating Temperature
< 10 hours
-40
50
̊C
Operating Humidity
< 10 hours, Non-Condensing
0
100
% RH
Operating Pressure
Transient pulses
-.5
.5
atm
Operating Temperature
Continuous
-30
50
̊C
Operating Humidity
Continuous, Non-Condensing
10
95
% RH
Operating Pressure
Continuous
0.8
1.2
atm
ESD Rating
Human Body Model
2
8
kV
ELECTRICAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Supply Current
V+ = 3.0 V
0.05
4
mA
Power Consumption
V+ = 3.0 V
0.15
12
mW
CROSS SENSITIVITY
The following table lists the relative response of common potential interfering gases, and the
concentration at which the data was gathered.
Gas/Vapor
Applied Concentration
(ppm)
Typical Response
ppm SO2
Sulfur Dioxide
20
20
Hydrogen Sulfide
25
142.3
Nitric Oxide
50
90.5
Carbon Monoxide
400
7.3
Ozone
5
-3.3
Chlorine
10
-2.8
Nitrogen Dioxide
10 ppm
1.4
n-Heptane
500
-0.7
Methane
500
0.7
Ammonia
100 ppm
<0.2
DGS-SO2 968-038
March 2017
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the SPEC Copyright © 2011-2017, SPEC Sensors LLC
Sensors standard warranty. Production processing does not
necessarily include testing of all parameters.
PACKAGE OUTLINE DRAWING & DIMENSIONS
PINOUT
Electrical connections to the DGS are made via a rectangular female socket connector (Sullins Connector Solutions
P/N: PPPC041LGBN-RC; recommended mate for host board: P/N: PBC08SBAN). This connector also provides
mechanical rigidity on one end of the board. A through-hole is located on the opposite end of the board to provide
additional mechanical connection.
Pin#
Function
Notes
1
N/C
2
RXD
3
TXD
4
N/C
5
N/C
6
GND
7
N/C
8
V+
Voltage Supply Input: 2.6 to 3.6 V
P1-P3P4-P6P7-P8

968-038

Mfr. #:
Buy 968-038
Manufacturer:
Description:
DGS-SO2 DIGITAL GAS SENSOR MODUL
Lifecycle:
New from this manufacturer.
Delivery:
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