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TARGET Series ENMET Corporation
24
8.0 Default Alarm and Configurations
Table 3: Default Alarm
Gas Full Scale
Display
Resolution Alarm 1 Alarm 2 TWA STEL Calibration
Gas Value
Ammonia 99 ppm 1 ppm 25 ppm 50 ppm 25 ppm 35 ppm 25 ppm NH
3
Arsine 1.00 ppm 0.01 ppm 0.05 ppm 0.10 ppm 0.10 ppm 0.10 ppm 0.5 ppm PH
3
0.5 ppm /AsH
3
BRH 200 ppm 1 ppm 100 ppm 150 ppm X X 100 ppm C
7
H
8
(toluene)
Carbon monoxide 500 ppm 1 ppm 35 ppm 200 ppm 35 ppm 200 ppm 100 ppm CO
∆ Chlorine
9.9 ppm 0.1 ppm 0.5 ppm 5.0 ppm .05 ppm 1.0 ppm 5 ppm Cl
2
Chlorine dioxide 3.00 ppm 0.01 ppm 0.10 ppm 0.30 ppm 0.10 ppm 0.30 ppm 1.0 ppm Cl
2
CO+ (BRH) 100 ppm 1 ppm 35 ppm 75 ppm X X 35 ppm CO
Combustible 99 %LEL 1 %LEL 10 %LEL 50 %LEL X X 50 %LEL CH
4
HS+ (BRH) 40 ppm 1 ppm 10 ppm 20 ppm X X 20 ppm H
2
S =
50 ppm CO
∆ Hydrogen chloride
20.0 ppm 0.1 ppm 5.0 ppm 10.0 ppm 5.0 ppm 5.0 ppm 10 ppm HCl
Hydrogen cyanide 20.0 ppm 0.1 ppm 4.7 ppm 10.0 ppm 4.7 ppm 4.7 ppm 10 ppm HCN
Hydrogen fluoride 10.0 ppm 0.1 ppm 0.3 ppm 6.0 ppm 3.0 ppm 3.0 ppm 5.0 ppm HF
Hydrogen sulfide 200 ppm 1 ppm 10 ppm 20 ppm 10 ppm 15 ppm 20 ppm H
2
S
Ozone 3.00 ppm 0.01 ppm 0.10 ppm 0.30 ppm 0.10 ppm 0.10 ppm 0.3 ppm O
3
Oxygen 30 %volume 0.1 % volume 19.5% 23.5% X X 20.9 % O
2
Phosphine 2.00 ppm 0.01 ppm 0.30 ppm 1.50 ppm 0.30 ppm 1.5 ppm 0.5 ppm PH
3
Nitrogen dioxide 30.0 ppm 0.1 ppm 1.0 ppm 5.0 ppm 1.0 ppm 1.0 ppm 5 ppm NO
2
Sulfur dioxide 30.0 ppm 0.1 ppm 2.0 ppm 10.0 ppm 2.0 ppm 5.0 ppm 10 ppm SO
2
∆ Ethylene oxide
10 ppm 0.1 ppm 5.0 ppm 7.5 ppm 5.0 ppm 5.0 ppm 5 ppm ETO
X = not applicable.
∆ These gases require the Sampling Shield p/n 04836-000 to be in place and pump activated for
accurate detection and calibration.
Sensor response time with internal pump, if the tubing is 20 feet long, allow at least 10 seconds for the test sample
to make it through the tubing. The sensor response time is typically 30 – 60 seconds to achieve 90% of the final
reading, depending on the specific sensor and the gas being detected. Therefore, the total 'system' response time for an
instrument using the internal sampling pump and 20 feet of hose is approximately 40-70 seconds to achieve 90% of the
final reading.
Table 4: Default Configuration
Operation Menu:
Basic
Confidence chirp interval:
120 seconds
Backlight duration:
30 seconds
Combustible gas display:
Methane
Datalogging:
Active (requires TARGET Trakker to retrieve)
Datalogging interval:
1 per minute
TWA/STEL Alarms:
Active
Locations: Enabled (requires TARGET Trakker to set)