Honeywell Midas User Manual

Midas
®
Gas Detector
9-7
9.3 Configuring the Detector
1. After completion of the startup sequence,
press the “p” button for a few seconds to
select the setup menu.
2. Enter the passcode (if necessary).
3. Use the “p” or “q” buttons to select the
setup menu “ ” icon. Press the “P” to accept.
4. Use the “p”or “q”buttons to select the set
alarms “ ALm” submenu. Press “P” to
accept.
5. The flashing gas ID code and the gas cylinder
and alarms icon “ ’’ will appear.
6. Use the “p” or “q” buttons to change the
gas ID number to that of the target gas. Press
“P”to accept.
7. Continue to accept or change the rest of
the alarm settings. For further details on
these settings, refer to the Midas Operating
Instructions (part number MIDAS-A-001).
8. Press “P” to update all changes (“UPdt” will
be displayed).
9. Press “X” twice to return to normal operation.
After applying power, verify that the sensor
cartridge ID and gas ID are appropriate for the
target gas. See Appendix B for gas ID codes.
Refer to Section 7.2.2 for the procedure for
setting the gas ID code.
The Midas gas detector automatically detects the
pyrolyzer module and provides the necessary power
and signaling for the device.

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