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ENVIRONMENTAL SENSOR TECHNOLOGY CO. INC.
III.
III.
III.
III. Performance
Performance
Performance
Performance Parameters
Parameters
Parameters
Parameters
Product name
Gas detection alarm
Sensor name
Optional (electrochemical
sensor)
Type of product
EST-2000
Type of sensor
Optional
External power
supply
5VDC/500mA
Detecting target
Toxic gas (optional)
Type of battery
Lithium ion battery
Detection principle
Electrochemical
Battery voltage
3.7V (charge limitation 4.2V)
Detection method
Diffusion
Battery capacity
800mAh
Detection range
Optional
Shutdown current
< 0.1mA
Accuracy
±5%FS
Startup current
< 10mA
Resolution
Optional
Alarm current
< 50mA
Operating
temperature
-10
℃
-40
℃
Protection class
IP65 dustproof and waterproof
Humidity
0-95%RH
Way of display
LCD liquid crystal display
Pressure range
860-1060hpa
Way of alarm
Two levels of the sound and light alarm
Preheat time
60 seconds
Alarm error
≤±10% alarm set value
Response time
T90≤30S (most)
Data storage
N/A
Service life
2 years (in the air)
Signal output
N/A
Zero drift
≤±2%FS/6h
Dimensions of
appearance
120*60*35mm
Span drift
≤±5%FS/6h
Weight of
machine
≤ 250g (including batteries)
Repeatability
≤±2%FS
Note:
Note:
Note:
Note: Please
Please
Please
Please refer
refer
refer
refer to
to
to
to the
the
the
the corresponding
corresponding
corresponding
corresponding sensor
sensor
sensor
sensor technical
technical
technical
technical manual
manual
manual
manual for
for
for
for the
the
the
the sensor
sensor
sensor
sensor parameters.
parameters.
parameters.
parameters.
