Honeywell MIDAS-M User Manual

MIDAS-M MULTIGAS TRANSMITTER

Fixed Single Point Extracted

Multi Gas Transmitter

3016M5001 Rev A ECO HAA190080

Table Of Contents

Introduction

HAPTER 1 —

About Us

Product Description

Overview

User Interface

Default Configuration

Installation

HAPTER 2 —

Mount the Transmitter Device

Mount the Relay Module

Sample and Exhausting Tubing Calculations 17

In-Line Filters

Local Detector Option

Electrical Installation

Electrical Connection

Wiring The Relay Module

Mount The Sensor Cartridge

Device & Web Operations

HAPTER 3 —

Comissioning

Monitoring Mode

Review Information

Setup Operations 34

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

HAPTER 4 —

Maintenance

System Leak Check

HAPTER 5 —

Additional Information

EU Directive 2012/19/EU: Waste Electrical and Electronic

Equipment (WEEE)

Troubleshooting and Fault Diagnosis

Specifications

Ordering

Transmitter 77

Cartridge 77

Smart Sensor 78

Accesories 78

Gas Table

Combination Index

Reflex

A Modbus/TCP Interface

Security 99

Modbus TCP 99

DOS attack 99

Install Web Server Certificate in Google Chrome

Install Web Server Certificate in MS Browsers

101

103

Warranty 105

Sensor Cartridge Warranty 106

107Contact Us

CHAPTER

Introduction

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.

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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.

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User Interface

Detector's User Interface overview.

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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.

Factory Default Configuration

Toxic Gas flammable gas

oxygen

Full Scale (FS) Typically4 x Threshold

LimitValue (TLV)

Alarm 1 (Relay 1)

Alarm 2 (Relay 2)

Fault (Relay 3)

Latching Latching. Alarm and fault relays DO NOT automatically reset when reading

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

1/2 TLV 10% LEL 23.5% v/v (Rising) Normally de-energized, energizeson alarm. TLV 20% LEL 19.5% v/v (F alling) Normally de-energized, energizeson alarm. Normally energizes, de-energizedon fault.

fallsbelow alarm thresholds.Relays MUST be manually reset.

100% Lower Explosive Limit(LEL)

25% V olume (v/v)

Not yet released

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CHAPTER

For ease of installation Midas-M has been designed to allow the installation of the mounting bracket assembly and main module separately from the other parts of the detector. The detector location and hard wiring can therefore be completed before fitting the detector’s main module and sensor cartridge.

WARNING Midas-M is designed for installation and use in indoor safe area non-explosive atmospheres. Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned. Prior to carrying out any installation ensure local regulations and site procedures are followed. Ensure the connection of all modules (e,g pump, and cartridge module) with the main module. Otherwise, Midas-M can have flow leakage or malfunction.

Installation

Mount the Transmitter Device

The Midas-M gas detector has an integral mounting bracket assembly that is easily mounted to a suitable vertical surface such as a wall, tool housing, mounting plate on a pole etc.

Midas-M outline dimensions

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NOTE Notice the space required to install the instrument, open the door, push in/pull out modules, and tubing.

Mounting procedure

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1. the door.

2. Un-tight the two screws.

3. Carefully pull the main module forward.

4. Drill two holes 2.2 in (55.9 mm) Use 2 x M4 Screws or equivalent for mounting (head size 7-11 mm).

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NOTE

This drill template is not to scale.

5. a. Partially screw the fixings into the mounting surface.

b. Place the mounting bracket assembly over the screws, so they pass

through the mounting holes and then slide down to locate in the slots.

c. Tighten the screws to secure the mounting bracket assembly.

6. a. Align the rounded corner at the lower of the main module with the similar

rounded corner at the bottom of the mounting bracket assembly

b. Slide the main module backward while pushing the main module up after

connecting with a mounting bracket so that the PCB connector and tubes engage simultaneously.

7. Ensure the PCB, connector, and tubes are fully engaged by firmly pushing the

main module horizontally backward on the mounting bracket assembly. DO NOT PUSH ON THE LCD AS THIS MAY DAMAGE IT.

8. a. Align the two fixing screws located at the bottom of the module with the

screw threads on the mounting bracket assembly.

b. Tighten the screws to secure the module to the mounting bracket

assembly.

9. Remove the internal packing card securing the pump. Failure to remove this

packing will result in damage to the Midas-M detector.

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Mount the Relay Module

The Relay Module has an integral mounting bracket assembly that is easily mounted to a suitable vertical surface such as a wall, tool housing, mounting plate on a pole etc.

1. Pull out the four screws and remove the plate cover.

2. a. Partially screw the fixings into the mounting surface. b. Place the Relay module over the screws, so they pass through the holes to locate in

the slots.

c. Tighten the screws to fix the Relay Module to the surface.

3. Connect the wire through the cable gland to the terminal block.

4. Place the plate cover in position and screw the four screws you removed in Step 1.

5. Push the mounting bracket assembly horizontally and engage the Relay Module connector.

6. a. Align the screw holes and the slot-boundaries, and tight the machine screws

(3016D0355) provided in packaging.

b. Connect the mounting bracket assembly to the Relay Module.

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Sample and Exhausting Tubing Calculations

Description of flow rate, and tubing vacuum at the inlet and exhaust points,

Inlet sample specifications

Description Maximum

Tubing Length, m (ft) 30 (100)

Sample Point Vacuum -25.4 cm H2O (-10 in H2O)

Transport Time (sec), ID 1/8”

Transport Time (sec), ID 3/16” 53

Flow rate, cc/min. 600 (Flow is constant)

Tubing OD, mm (in) 6.35 (0.25)

Tubing ID, mm (in) 3.18 (0.125)

Honeywell Analytics recommends thick-wall tubing (1/8” ID) for best speed of response. Due to

its lower surface area, thick- wall tubing may require less conditioning than thin-wall tubing.

The flow rate is electronically maintained at approximately 600 cc/min and may vary within

acceptable tolerances.

Tubing lengths vary among gases. See the Gas Chart for recommended lengths.

NOTE Honeywell Analytics recommends the use of Teflon FEP (Fluorinated Ethylene Polymer) tubing to assure proper sample transport. The properties of Teflon FEP make it the best choice for transporting sample toxic gases to instruments when compared with the properties of other similar tubing materials.

Outlet sample specifications

description maximum

Tubing Length, m (ft) 30 (100)

Back Pressure at Exhaust Point 20.3 cm H2O (8 in H2O)

Flow rate, cc/min 600 (Flow is constant)

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description maximum

Tubing OD, mm (in) 6.35 (0.25)

Tubing ID, mm (in) 4.76 (0.188)

Prepare Tubing

1. Cut the tube squarely and remove any burrs.

2. Mark from end of tube the length of insertion. The insertion lenght of Midas-Mfrom the end of tube is 15.5 mm.

NOTE When inserting the tube into the inlet/outlet port of the Midas-M, make sure that it is inserted up to the marked position.

In-Line Filters

External filters must be used to protect the tubing from contamination. Use particulate filter part number 780248 for normal gases and 1830-0055 or 1991-0147 for corrosive gases. Replace the filter every 3 months. Refer to the Gases Table for specific gases.

Local Detector Option

The Midas-M gas detector can also be used to monitor for gas at the location of the detector. To do this, an inline filter is simply connected to the sensor cartridge gas inlet port. The external dust filter part number is 780248 for normal gases and 1830-0055 or 1991-0147 for corrosive gases. The area around the detector is then being monitored as opposed to a sample being drawn from a remote location.

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Electrical Installation

Access for the electrical wires to the terminal module is made via the PG16 cable gland located at the bottom of the mounting bracket assembly. The cable gland can be removed and replaced with a suitable conduit fitting if required.

Typical wire routing

The terminals used are suitable for conductors of 24 to 14 AWG (0.5 to 1.8mm Dia.). We recommend using the 16 AWG (1.5 mm Dia.) conductors.

If Power over Ethernet (PoE) is used to power the device, then 24 VDC power must not also be connected to the device, (or conversely, if 24 VDC is used to power the Midas-M, then electrical power via the Ethernet port must not be applied). Failure to observe this requirement may cause damage to the gas detection system and will not be covered by the standard warranty.

When connecting the wires ensure that the power switch is in the off position.

NOTE Earthing Requirements: If the Midas-M unit’s metal chassis is not connected directly to a metal surface for earthing purposes, an additional earth wire will be required. Connect a

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wire via the PG16 gland to the dedicated earth tag (screw terminal) located on the bottom bracket and connect the other end of the wire to a dedicated external earthing point. If Power over Ethernet (PoE) power supply is being used, shielded CAT5 Ethernet cable is recommended. Please ensure that your wiring avoids earth ground loops that may affect the performance of your equipment.

NOTE Instrument grounding is required to ensure stable performance and to limit the effects of radiofrequency interference before installation.

The following diagram shows the terminal module layout and terminal identification as well as the jumper locations.

Transmitter Terminals

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Transmiter Terminals

terminal number function description

1 24Vdc Input 0Vdc

2 24Vdc Input +24Vdc

3 mA output - Channel 1 COM

4 mA output - Channel 1 mA-

5 mA output - Channel 1 mA+

6 mA output - Channel 2 COM

7 mA output - Channel 2 mA-

8 mA output - Channel 2 mA+

9 mA output - Channel 3 COM

10 mA output - Channel 3 mA-

11 mA output - Channel 3 mA+

12 mA output - Channel 4 COM

13 mA output - Channel 4 mA-

14 mA output - Channel 4 mA+

15 Relay 1 Normally Closed

16 Relay 1 Common

17 Relay 1 Normally Open

18 Relay 2 Normally Closed

19 Relay 2 Common

20 Relay 2 Normally Open

21 Relay 3 Normally Closed

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terminal number function description

22 Relay 3 Common

23 Relay 3 Normally Open

Relay function table

Display Description Relay 1 Relay 2 Relay 3

INSTRUMENT F ONLY

SEPARATE F

COMBINED F

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Instrument fault only

Separate fault relays

Combined fault relay

Alarm 1 Alarm 2

Any alarm

Alarm 1 Alarm 2 Any fault

Maintenance fault

Instrument fault

Electrical Connection

Midas-M can be powered by either 24 VDC via traditional discrete wiring or by approximately 48 VDC delivered through the Ethernet cable from a PoE source. In either case, the 4-20 mA analog output can be used.

The analog output can be configured for fully isolated operation. With 24 VDC power the 4-20 mA output can be configured for sink, source or isolated output operations. Following are some schematic diagrams of typical electrical connection configuration.

NOTE When wiring the Midas-M Transmitter to a controller, program the controller for a 1-2 second delay before reporting to prevent false alarms.

Generic example Midas-M 3-wire sourcing

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Generic example Midas-M 4-Wire Isolated output

Generic example Midas-M 3-wire Sinking output

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Generic example Midas-M Isolated 4-20mA output w/PoE power

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Wiring The Relay Module

The Midas-M relay module contains:

Nine relays to activate external devices.

Eight gas alarm relays which indicate level 1 and level 2 alarms of each channel.

A common fault relay which indicate maintenance fault or instrument fault.

Specifications

Power Supply

Power consumption

Relay rating 1.0 A @ 30VDC or 0.5 A @ 125 VAC max, 10 uA @ 10 mV minimum

Wiring 14 AWG maximum per each channel

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No separated power supply required Supplied from the Midas-M transmitter

< 1.45 W

Default configuration

All alarm relays Normally de-energized, energized on alarm

Common fault relay Normally energized, de-energized on fault

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Mount The Sensor Cartridge

The Midas-M Sensor Cartridge enables the detection of a wide range of asphyxiant, toxic, flammable, pyrophoric, corrosive, and oxidizer (including Oxygen) gases. The plug & play Sensor Cartridge is located inside the detector’s chassis.

NOTE The Midas-M sensor cartridge is supplied separately. Before use, verify the part number and type of sensor cartridge is correct for your application.

1. Turn the power off.

2. Open the door and remove the BiAS battery module and the two plug caps from the sensor cartridge.

3. Align the Sensor cartridge pins with the socket in the sensor cartridge chamber and then push the sensor cartridge gently until fully seated.

4. Close the door.

5. a. Press the ‘O’ button to clear the “Detect New Cartridge ” message.

b. Confirm that the green LED is flashing, and that the yellow and red LEDs are off.

c. Confirm the display shows a concentration of zero as appropriate.

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CHAPTER

Learn what you can do with your Honeywell Midas®-M Detector, from commissioning to Maintenance

Device & Web Operations

Comissioning

Comissioning should be followed carefully and only performed by suitably trained personnel.

WARNING Before carrying out any work, ensure local and site procedures are followed. Ensure that the associated control panel is inhibited to prevent false alarms.

1. Ensure the detector is wired correctly.

2. Ensure that the correct sensor cartridge is fitted. (If the cartridge has not been stored at room temperature, allow one hour for equilibration.)

3. Ensure the ON/OFF switch on the bottom of the mounting bracket assembly is in the ON position.

4. Apply power to the system. Wait for a couple of minutes until the start-up routine completes.

5. After the start-up routine, the detector will display the Normal/Monitoring Operating Mode.

6. Perform a leak test to ensure all connections are secure. ‘Waiting…’ will be displayed on booting time.

7. Allow the detector to stabilize until the ‘Warm-up’ message is no longer displayed after booting. The maximum warm-up time is dependent on sensor type. Refer to individual cartridge data sheets. Warm-up times are typically much faster.

8. Ensure the correct ID code is selected in Set-up > alarm menu

9. If this is a first-time start-up, the “Detect New Cartridge ~” message could be displayed. Press the ‘O’ button to clear the message.

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Monitoring Mode

After commissioning, the Midas-M detector is set in the Monitoring Mode, which is the starting point for all of the device's operations.

The examples in the following table are for a linear 4-20 mA output over a full scale range of 2 ppm. The current output for a given gas concentration will be different for other full scale ranges (linear 4 mA = 0 % full scale to 20 mA = 100 % full scale). The alarm and fault relays are in default (latching) mode.

Normal Operation Display and Outputs.

This table is based on the default configuration of toxic sensor type.

Status Relay Status

Alarm 1

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Alarm relay 1 activated

4-20mA output

mA output to match the concentration

LEDs Backlight

Green flash Alarm 1 Red on

Red on of the channel

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