Honeywell Midas User Manual page 154

Gas Name Formula Range
(Note: Due to U.S. Government regulations, this range may be subject to restrictions requiring special licensing for certain countries outside North America. Contact Honeywell Analytics for eligibility information.)
Hydrogen Sulfide H S 0-40 ppm 4.8 ppm
2
Hydrogen Sulfide
H S 0-100 ppm 9.5 ppm
High Level
2
0-100%
Methane (%LEL) 7 CH 4.5%LEL
LEL 1
4
Methyl Fluoride CH F 0-120 ppm 10 ppm
3
Nitrogen Dioxide NO 0-12 ppm 1.45 ppm
2
Nitric Oxide NO 0-100 ppm 12 ppm
Nitrogen Trifluoride NF 0-40 ppm 4.0 ppm
3
Nitrous Oxide N O 0-1000 ppm 125 ppm
2
Lower
Default Default Sensor Part
Alarm
Alarm 1 Alarm 2 Number
Limit
5 ppm 10 ppm MIDAS-S/E-H2S
10 ppm 20 ppm MIDAS-S/E-HSH
10% LEL 20% LEL MIDAS-S/E-LEL 8
15 ppm 30 ppm MIDAS-S/E-XHF
1.5 ppm 3 ppm MIDAS-S/E-NO2
12.5 ppm 25 ppm MIDAS-S/E-NOX
5 ppm 10 ppm MIDAS-S/E-XHF
250 ppm 500 ppm MIDAS-I-N2O
Maximum Flow
Sensor
Sensor Gas Rate
Cartridge
Calibration
Warm-up Time ID (cc/
ID
Gas
(minutes) min)
10 18 1 500 H S
2
10 27 1 500 H S
2
H
2
30 25 2 500
CH
4
20 3 34 2 500 HF
10 20 1 500 NO
2
10 19 1 500 NO
20 3 34 1 500 HF 2
10 92 1 500 N O
2
B-5
Midas
Calibration Bump Test
Output Exp Recommended
Conc Conc
Equiv. Time Bump Test
(ppm) (ppm)
(ppm) (sec) Gas
20 20 300 H S 20
2
50 50 300 H S 50
2
2 vol% 57% LEL 300 H 2 vol%
2
2.5 2.5
50% LEL 300 CH
vol% vol%
4
5 52.50 300 Cl 5
2
6 6 300 NO 50
2
50 50 300 NO 50
5 23 300 Cl 2 5
2
500 500 300 N O 500
2
Gas Detector
®
Recommended
Maximum End of Lne
Max
Sample Line Filter
Time
Length (m)
(sec)
780248,
1991-0147
180 30
or
1830-0055
780248,
1991-0147
180 30
or
1830-0055
780248,
1991-0147
180 30
or
1830-0055
780248,
1991-0147
180 30
or
1830-0055
,
780248 2
1991-0147
180 30
or
1830-0055
1991-0147
180 30 or
1830-0055
780248,
1991-0147
180 30
or
1830-0055
780248 2 ,
1991-0147
or
180 30
1830-0055
1830-
0027 6
780248,
1991-0147
180 30
or
1830-0055