Honeywell Midas User Manual

Midas
®
Gas Detector
B-2
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)
Ammonia NH
3
0-100 ppm 12 ppm 12.5 ppm 25 ppm MIDAS-S/E-NH3 10 01 1 500 NH
3
50 50 300 NH
3
50 180 10
780248,
1991-0147
or
1830-0055
Arsine AsH
3
0-200 ppb 24 ppb 25 ppb 50 ppb MIDAS-S/E-ASH 20 02 1 500 AsH
3
100
ppb
100 ppb 300 PH
3
0.1 180 30
780248,
1991-0147
or
1830-0055
Boron Trichloride BCl
3
0-8 ppm 0.95 ppm 1 ppm 2 ppm MIDAS-S/E-HCL 20 10 2 500 HCl 4 4 300 HCl 4-6 180 5
4
1991-0147
or
1830-0055
Boron Trifluoride BF
3
0-8 ppm 0.96 ppm 1 ppm 2 ppm MIDAS-S/E-HFX 20 08 2 500 HF 4 4.5 300 Cl
2
5 180 5
4
5
4
1991-0147
or
1830-0055
Boron Trifluoride
Low Range
BF
3
0-2 ppm 0.24 pm 0.25 ppm 0.5 ppm MIDAS-E-HFU 20 32 2 500 HF 1 1 300 Cl
2
1 180
1991-0147
or
1830-0055
Boron Trifluoride Low
Level
BF
3
0-2 ppm 0.24 ppm 0.25 ppm 0.5 ppm MIDAS-S/E-HFL 20 26 2 500 HF 1 1.12 300 Cl
2
1 180 5
4
1991-0147
or
1830-0055
Bromine Br
2
0-0.4 ppm 0.048 ppm 0.05 ppm 0.1 ppm MIDAS-S/E-BR2 20 13 1 500 Cl
2
0.2 0.2 300 Cl
2
0.2 180 10
1991-0147
or
1830-0055
Carbon Dioxide CO
2
0-2 vol% 0.25 vol% 0.25 vol% 0.50 vol% MIDAS-S/E-CO2 20 14 1 500 CO
2
1 vol% 1 vol% 300 CO
2
1 vol% 180 30
780248,
1991-0147
or
1830-0055
0-2 vol% 0.25 vol% 0.25 vol% 0.50 vol% MIDAS-I-CO2 10 91 1 500 CO
2
1 vol% 1 vol% 300 CO
2
1 vol% 180 30
780248,
1991-0147
or
1830-0055
0-5 vol% 0.25 vol% 0.25 vol% 0.50 vol% MIDAS-I-CO2 10 91 2 500 CO
2
1 vol% 1 vol% 300 CO
2
1 vol% 180 30
780248,
1991-0147
or
1830-0055
0-0.2 vol% 0.02 vol% 0.02 vol% 0.05 vol% MIDAS-I-CO2 10 91 3 500 CO
2
0.1
vol%
0.1 vol% 300 CO
2
0.1
vol%
180 30
780248,
1991-0147
or
1830-0055
B Gas Tables

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