Honeywell Midas User Manual

Midas
®
Gas Detector
B-4
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)
Hexafluorobutadiene
(w/HTP pyro) High
Range
C
4
F
6
** 0-80 ppm 20 ppm 20 ppm 40 ppm MIDAS-E-CFH 20
3
31 1 500 HF
2
10 43.41 300 Cl
2
2
10 180 30
780248
2
,
1991-0147
or
1830-0055
Hydrogen (%LEL)
7
H
2
0-100%
LEL
1
4.5% LEL 10% LEL 20% LEL MIDAS-S/E-LEL
8
30 25 1
10
500
H
2
2 vol% 50% LEL 300 H
2
50%
LEL
180 30
780248,
1991-0147
or
1830-0055
CH
4
2.5
vol%
44% LEL 300 CH
4
50%
LEL
180 30
780248,
1991-0147
or
1830-0055
Hydrogen (ppm) H
2
0-1000 ppm 120 ppm 125 ppm 250 ppm MIDAS-S/E-H2X 10 16 1 500 H
2
500 500 300 H
2
500 180 30
780248,
1991-0147
or
1830-0055
Hydrogen Bromide HBr 0-8 ppm 0.95 ppm 1 ppm 2 ppm MIDAS-S/E-HCL 20 10 4 500 HCl 4 4.7 300 HCl 4-6 180 5
4
1991-0147
or
1830-0055
Hydrogen Chloride HCl 0-8 ppm 0.95 ppm 1 ppm 2 ppm MIDAS-S/E-HCL 20 10 1, 5
10
500 HCl 4 4 300 HCl 4-6 180 5
4
1991-0147
or
1830-0055
Hydrogen Chloride
High Range
HCl 0-15 ppm 5 ppm 5 ppm 10 ppm MIDAS-E-HCH 20 30 1 500 HCl 10 10 300 HCl 10 180 5
1991-0147
or
1830-0055
Hydrogen Cyanide HCN 0-20 ppm 2.4 ppm 2.5 ppm 4.7 ppm MIDAS-S/E-HCN 10 17 1 500 HCN 10 10 300 SO
2
4 180 10
780248,
1991-0147
or
1830-0055
Hydrogen Fluoride HF 0-12 ppm 1.45 ppm 1.5 ppm 3 ppm MIDAS-S/E-HFX 20 08 1 500 HF 5 5 300 Cl
2
10 180 5
4
1994-0147
or 1830-
0055
Hydrogen Fluoride
Low Range
HF 0 - 2 ppm 0.45 ppm 0.45 ppm 0.5 ppm MIDAS-S/E-HFU 20 32 1 500 HF 1 1 300 Cl
2
1 180 5
1991-0147
or
1830-0055
Hydrogen Fluoride
Low Level
HF 0.18-2 ppm 0.24 ppm 0.25 ppm 0.5 ppm MIDAS-S/E-HFL 20 26 1 500 HF 1 1 300 Cl
2
1 180 5
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