Honeywell Midas User Manual

Midas
®
Gas Detector
13-11
The Gas/Alarm Configuration page enables users to select the desired gas calibration. It also permits
setting alarm levels and other parameters. Additionally, alarms may be set to trigger on decreasing
concentration -- this is useful with oxygen.
An alarm delay of 0 to 60 seconds can be set up in order to give a programmable delay time before the
alarm signal is processed; this can be used to prevent nuisance alarms in certain conditions. Alarms can
be set latching which requires direct operator intervention to reset the alarm once activated. The User
Calibration Period is a reminder of when a calibration message will be broadcast by the Midas
®
via the
LCD display, analog or digital outputs. This can set to a custom period or if set to zero, no reminder will
be activated. The factory default is set for 6 months (180 days).

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