PEMTECH PT395 Series - Page 6

Toxic Gases
Target Gas
Max Range
Sensor
Type
Res.
Calib Gas
Range
(user
Selectable)
Default
Calib Gas
Used
Response
time (T90)
seconds
Recovery
Time (T10)
seconds
XXX
Operating Temperature
Default alarm Levels /
Set Points
Min
Max
Alarm 1
Alarm 2
Ammonia
(NH3)
50 ppm
Electrochemical
Sensors
0.1 ppm
5-35 ppm
25 ppm
< 60
~ 90
-4°C / 24°F 50°C / 122°F 5 ppm 10 ppm
Carbon Monoxide
(CO)
100 ppm
1 ppm
20-50 ppm
50 ppm
< 25
~45
-20°C / -4°F 55°C / 131°F 20 ppm 50 ppm
Carbon Monoxide
(CO)
300 ppm
5 ppm
50-150 ppm
50 ppm
< 25
~45
-20°C / -4°F 55°C / 131°F 100 ppm 150 ppm
Chlorine
(CL2)
10 ppm
0.1 ppm
2-10 ppm
5 ppm
< 60
~50
-20°C / -4°F 55°C / 131°F 2 ppm 5 ppm
Hydrogen
1,000 ppm
10 ppm
100-500 ppm
500 ppm
< 35
~120
-20°C / -4°F 55°C / 131°F 200 ppm 500 ppm
Hydrogen Sulfide
(H2S)
100 ppm
1 ppm
20-50 ppm
50 ppm
< 35
~45
-40°C / -40°F
65°C / 149°F
(intermittent)
10 ppm 15 ppm
Hydrogen Sulfide
(H2S)
500 ppm
1 ppm
50-150 ppm
50 ppm
< 35
~45
-40°C / -40°F
65°C / 149°F
(intermittent)
50 ppm 100 ppm
Mercaptan
100 ppm
1 ppm
20-50 ppm
50 ppm
< 35
~ 45
-20°C / -4°F 55°C / 131°F 10 ppm 15 ppm
Nitrogen Dioxide
50 ppm
1 ppm
10-50 ppm
10 ppm
< 50
~ 75
-20°C / -4°F 55°C / 131°F 10 ppm 15 ppm
Nitric Oxide
(NO)
100 ppm
1 ppm
20-50 ppm
25 ppm
< 45
~ 50
-20°C / -4°F 55°C / 131°F 20 ppm 50 ppm
Oxygen
(O2)
25 %V/V
0.1 %
Calibrated in fresh air.
Purged with Pure Nitrogen
< 15
from 20.9% to 0
~ 40
-20°C / -4°F 55°C / 131°F
19.5%V/V
(falling)
Sulfur Dioxide
(SO2)
100 ppm
1 ppm
20-50 ppm
25 ppm
< 35
10 ppm SO2
~45
-20°C / -4°F 55°C / 131°F 5 ppm 10 ppm
Carbon Dioxide
(CO2)
5 %
Infrared
Sensors
0.1 %
2 – 5 %
2.5 ppm
< 35
~ 45
-40°C / -40°F 75°C / 167°F 2 % 3.5 %
Carbon Dioxide
(CO2)
100%
1 %
10 – 100 %
50 ppm
< 35
~ 45
-40°C / -40°F 75°C / 167°F 20 % 50 %
Combustible Hydrocarbons
Target Gas
Max Range
Sensor Type
Res.
Calib Gas
Used
Response Time
(T90) seconds
Recovery Time
(T10) seconds
Accuracy
%
Operating Temperature
Default alarm Levels /
Set Points
Min
Max
Alarm 1
Alarm 2
Flammable
(Hydrocarbons)
100 % LEL
(5% Methane in
Air)
Catalytic
Bead
1 % 50 % LEL
< 25
~ 40
± 2
-40°C / -40°F 75°C / 167°F 20 % 40 %
Hydrocarbons
(Methane /
Propane)
100 % LEL Infrared 1 %
50 % LEL
(methane or
propane)
< 25
~ 40
± 2
-40°C / -40°F 75°C / 167°F 20 % 40 %
Table 1. Reference Table for Target Gas Range and default parameters
Rev 2: 1/5/16