Honeywell Midas User Manual

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

Honeywell Midas Specifications

General

Power Supply	24 VDC
Detection Technology	Electrochemical, Infrared
Sampling Method	Diffusion
Display	LCD
Communication	Modbus RTU, 4-20mA
Operating Temperature	-20°C to +50°C
Humidity Range	0% to 95% RH (non-condensing)
Target Gas	Multiple gases
Response Time	< 30 seconds
Operating Humidity	0% to 95% RH (non-condensing)
Outputs	4-20mA
Protection Rating	IP66
Certifications	ATEX, UL, CSA
Detection Gases	Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Methane (CH4), and others