A Appendices; Detector Parameters - Xtralis VESDA Sensepoint XCL Installation Manual

VESDA

A Appendices

A.1

Detector Parameters

Gas Detector Type
Carbon Monoxide (ppm) XCL-LB-CO..
Flammable CAT (% LEL) XCL-LB-CH4..
Hydrogen (ppm) XCL-LB-H2..
Carbon Dioxide (% v/v) XCL-LB-CO2VV..
Carbon Dioxide (ppm) XCL-LB-CO2PP..
Hydrogen Sulphide (ppm) XCL-LB-H2S..
Nitrogen Dioxide (ppm) XCL-LB-NO2..
Ammonia (ppm) XCL-LB-NH3..
Oxygen (% v/v) XCL-LB-O2..
Operating
Temperature
Gas
Min
Carbon Monoxide(ppm)
Flammable CAT (% LEL)
Hydrogen (ppm)
Carbon Dioxide (% v/v)
Carbon Dioxide (ppm) -20°C
Hydrogen Sulphide (ppm)
Nitrogen Dioxide (ppm)
Ammonia (ppm)
Oxygen (% v/v)
1
LAL Lower Alarm Level (lowest alarm level that user can set)
2
LDL Lower Detection Limit (lowest detectable level that device can display)
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User Selectable Default
Range Range
50 to 1000ppm 300ppm
20 to 100% LEL 100% LEL
1000ppm (Fixed) 1000ppm
1.0 to 5.0% v/v 5.0% v/v
1000 to 5000ppm 5000ppm
10 to 50ppm 50ppm
5 to 50ppm 20ppm
50 to 200ppm 100ppm
25.0% v/v (Fixed) 25.0% v/v
Default A1
Max A1 A1 Options
Type
30ppm
20% LEL
200ppm
0.4% v/v
50°C 1500ppm Rising Rising/Disabled
10ppm
0.7ppm
20ppm
23.5% v/v
User Selectable Default Cal
Cal Gas Range Point
100ppm
50% LEL
500ppm
2.5% v/v
20 to 70% of
selected full scale 2500ppm
range
25ppm
5ppm
50ppm
20.9% v/v
Default Alarm Points & Types
A2 Default A2 Type
100ppm
50% LEL
400ppm
0.8% v/v
Rising
3000ppm
20ppm
2ppm
50ppm
19.5% v/v Falling
VESDA Sensepoint XCL – Large Bore Installation Manual
Response Time T
90
Resolution
(s) – Standalone
<30 1ppm
<30 1% LEL
<120 1ppm
<30 0.1% v/v
<30 10ppm
<30 0.1ppm
<120 0.1ppm
<200 1ppm
<30 0.1% v/v
LAL
A2 Options
15ppm
10% LEL
100ppm
0.2% v/v
Rising/Disabled
500ppm
1ppm
0.6ppm
20ppm
Falling/Disabled 5.0% v/v
Accuracy (greater of
ppm or % of applied gas)
< ±2ppm or ±10%
< ±3%LEL or ±10%
< ±15ppm or ±20%
< ±0.2% v/v or ±20%
< ±30ppm or ±20%
< ±0.3ppm or ±10%
< ±0.2ppm or ±20%
< ±4ppm ±20%
< ±0.5 % v/v
1 2
LDL
10ppm
6% LEL
30ppm
0.1% v/v
300ppm
0.8ppm
0.3ppm
6ppm
3% v/v
32