03 Series Operator’s Manual
Specifications • 2
Specifications
Table 1: 03 Series Specifications
CO-03
HS-03
OX-03
Target Gas
Carbon Monoxide
(CO)
Hydrogen Sulfide
(H
2
S)
Oxygen
(O
2
)
Detection Range
0 to 500 ppm
0 to 100.0 ppm
0 to 40.0% vol.
Display Increment
1 ppm
0.5 ppm
0.1% vol.
Detection
Principle
Electro Chemical
Electro Chemical
Galvanic Cell
Alarm Points
Low
High
TWA
STEL
25 ppm
50 ppm
25 ppm
200 ppm
Low
High
TWA
STEL
5.0 ppm
30.0 ppm
1.0 ppm
5.0 ppm
Low 19.5% vol.
(decreasing)
High 23.5% vol.
(increasing)
Sampling Method
Diffusion
Diffusion
Diffusion
Response Time
T90 in 30 seconds
T90 in 30 seconds
T90 in 20 seconds
Accuracy
± 5% of reading or
± 5 ppm CO
(whichever is
greater)
± 5% of reading or
± 2 ppm H
2
S
(whichever is
greater)
± 0.5% O
2
Indication
Digital LCD
Safety/Regulatory
C US
pending
CSA classified, “C/US”, as Intrinsically Safe. Exia. Class I,
Groups A, B, C, & D. Temperature Code T3.
Power
Two AAA size alkaline batteries standard, Duracell MN2400 or
PC2400, Eveready Energizer E92 or EN92
Continuous
Operating Hours
At 25 °C: Over 3,000 hours, no alarms or backlighting
Case
High-impact plastic, dust and weather proof
Standard
Accessories
• Rubber protective boot
• Alligator clip
