Honeywell Midas-M User manual

MIDAS-M MULTIGAS TRANSMITTER
Fixed Single Point Extracted
Multi Gas Transmitter
3016M5001 Rev A
ECO HAA190080

Table Of Contents
7
7
7
8
9
10
11
11
15
Introduction
About Us
Product Description
Overview
User Interface
Default Configuration
Installation
Mount the Transmitter Device
Mount the Relay Module
Sample and Exhausting Tubing Calculations 17
18
18
19
23
26
28
29
29
30
32
In-Line Filters
Local Detector Option
Electrical Installation
Electrical Connection
Wiring The Relay Module
Mount The Sensor Cartridge
Device & Web Operations
Comissioning
Monitoring Mode
Review Information
Setup Operations 34
CHAPTER 1 —
CHAPTER 2 —
CHAPTER 3 —

36
38
Test Mode
Calibration Mode
Calibration & Bump Test 39
Bump Test 40
Internal Web Server 41
Physical Network Components 41
Internet Settings 41
Running the Web Server 42
65
66
69
69
70
74
Maintenance
System Leak Check
Additional Information
EU Directive 2012/19/EU: Waste Electrical and Electronic
Equipment (WEEE)
Troubleshooting and Fault Diagnosis
Specifications
Ordering 77
Transmitter 77
Cartridge 77
Smart Sensor 78
Accesories 78
82
84
85
86
Gas Table
Combination Index
Reflex
A Modbus/TCP Interface
Security 99
CHAPTER 4 —
CHAPTER 5 —

Modbus TCP 99
DOS attack 99
101
103
Install Web Server Certificate in Google Chrome
Install Web Server Certificate in MS Browsers
Warranty 105
Sensor Cartridge Warranty 106
107Contact Us

CHAPTER
1Introduction
Learn what you need to know about the Honeywell Midas®-M Gas Detector before operating.
About Us
Honeywell Analytics: the global leader in gas detection
While you build a better world, we’re building smarter safety.
For nearly 50 years, Honeywell Analytics has been protecting people who put their lives on the line
every day. It takes a special level of drive and dedication to work in hostile environments, and we
believe your workers deserve the same kind of commitment from us when it comes to securing
their health and safety.
Right from the start, our founders were determined to find better ways to design, build and
manufacture reliable gas detection solutions. Through advanced technology and pure industry
know-how, Honeywell Analytics continues to improve and evolve our products. Today, we’re proud
to partner with customers worldwide who share our vision of vigilance and rely on us to help them
protect what matters most.
From custom-designed solutions to unmatched training and support, Honeywell Analytics is
simply the smartest choice when you demand the best in safety.
Product Description
The Honeywell Midas®-M is a Fixed Extractive Single Point with 4-in-1 Multi Gas Detector that
draws a sample locally or from a remote point to a sensor cartridge that is located inside the
detector’s chassis. A wide range of toxic, flammable and oxygen gas sensor cartridges are
available that enable detection of gases used or generated in the Semiconductor and other
manufacturing industries.
Midas-M is shipped from the factory with the security function disabled. We strongly recommend
enabling this function for safe use of the detector. To enable it, select Set up > Security and type an
8 character password.
Midas-M is wall mounted and displays gas concentration, alarm, fault and status information via
its backlit LCD and LEDs. A simple to use 4-button keypad located under the display provides the
facility to set-up, review, operate and make changes to the detector’s configuration.
Midas-M 7 User Manual

Midas-M has flexible power and communications capabilities built in as standard. These include
3 on board relays, 0-21 mA analog output, Modbus/TCP outputs for signal and service
connectivity as well as Power over Ethernet (PoE) connection that enables a single Ethernet
connection to be made for all power, control and communication requirements.
Overview
The Midas-M gas detector comprises of 4 parts: the main module, the mounting bracket
assembly, the sensor cartridge and the pump module.
Midas-M 8 User Manual

User Interface
Detector's User Interface overview.
Midas-M 9 User Manual

Default Configuration
The Midas-M gas detector is factory-configured.
NOTE: Oxygen levels are 20.9% v/v in a normal atmosphere, equivalent to 17.3 mA. Use caution
when integrating an oxygen Midas-M unit using the 4-20 mA output since fault, inhibit, and no
power conditions are below 4 mA and, by default, an oxygen depletion alarm is triggered on a
falling alarm (default 19.5% v/v). In that case, Honeywell Analytics recommends one of the
following:
• Use Modbus TCP digital communications
• Use discrete relay inputs instead of a 4-20 mA signal to trigger gas alarms
• Program the control system of the 4-20 mA input with logic and a delay (e.g., 1 second) before
triggering an alarm to determine if the 4-20 mA output is at one of the 0-4 mA conditions
described above.
Contact Honeywell Analytics for further information.
Toxic Gas flammable gas1oxygen
Full Scale (FS) Typically 4 x Threshold
Limit Value (TLV)
100% Lower Explosive
Limit (LEL)
25% Volume (v/v)
Alarm 1
(Relay 1)
1/2 TLV 10% LEL 23.5% v/v (Rising)
Normally de-energized, energizes on alarm.
Alarm 2
(Relay 2)
TLV 20% LEL 19.5% v/v (Falling)
Normally de-energized, energizes on alarm.
Fault
(Relay 3)
Normally energizes, de-energized on fault.
Latching Latching. Alarm and fault relays DO NOT automatically reset when reading
falls below alarm thresholds. Relays MUST be manually reset.
Passcode No Passcode set.
Address 169.254.60.47 subnet mask 255.255.255.0
Current source with:
1.0 mA Fault
2.0 mA Inhibit
3.0 mA Maintenance Fault
4.0 to 20.0 mA Gas reading (normal operation)
21.0 mA Over range
1Not yet released
Factory Default Configuration
Midas-M 10 User Manual