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Midas Gas Detector
User Manual
Table of Contents
Description
Overview
Default Configuration
Installation
Startup
Operation
Navigating Menus
Maintenance
Pyrolyzer Module Options
LonWorks Interface
Troubleshooting/Faults
REFLEX
Internal Web Server
Installation Topologies
Ordering Information
Specifications
Calibration/Bump Testing
Modbus/TCP Interface
Gas Tables
Warranty

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Table of Contents

   Also See for Honeywell Midas

   Related Manuals for Honeywell Midas

   Summary of Contents for Honeywell Midas

  • Page 1 Midas Gas Detector User Manual • Table of Contents • Navigating Menus • Installation Topologies • Description • Maintenance • Ordering Information • Overview • Pyrolyzer Module Options • Specifications • Default Configuration • LonWorks Interface • Calibration/Bump Testing •...
  • Page 2: Table Of Contents

    Midas Gas Detector ® Table of Contents 1 Description ���������������������������������������������������������������������������������������������������������������������� 1-2 2 Overview �������������������������������������������������������������������������������������������������������������������������� 2-2 2�1 Chassis ������������������������������������������������������������������������������������������������������������������� 2-2 2.1.1 Display ......................2-2 2.1.2 Pump Module ....................2-3 2.1.3 Sensor Cartridge Chamber ................2-3 2�2 Mounting Bracket Assembly ��������������������������������������������������������������������������������� 2-3 2.2.1 Mounting Bracket ....................
  • Page 3 Midas Gas Detector ® 6 Operation ������������������������������������������������������������������������������������������������������������������������� 6-2 6�1 Normal Operation Mode ��������������������������������������������������������������������������������������� 6-2 6.1.1 Resetting Alarms, and Faults ................6-4 6�2 Review Mode ��������������������������������������������������������������������������������������������������������� 6-4 6.2.1 Review Mode Menu Overview ............... 6-4 6�3 Overview of Set-up, Calibration, and Test Mode ����������������������������������������������� 6-6 6.3.1 Set-up Menu Overview ..................
  • Page 4 10 Midas LonWorks Interface Module ��������������������������������������������������������������������������� 10-2 10�1 LonWorks Installation ��������������������������������������������������������������������������������������� 10-2 10.1.1 Fitting the LonWorks Module ..............10-2 10.1.2 Wiring the Midas for LonWorks ..............10-3 10.1.3 Configuring the Midas for LonWorks ............10-3 10�2 LonWorks Software ������������������������������������������������������������������������������������������ 10-4 10.2.1 LonWorks...
  • Page 5 14�2 Modbus/TCP Installation ����������������������������������������������������������������������������������� 14-3 14�3 Power over Ethernet (PoE) Installation ������������������������������������������������������������ 14-3 15 Ordering information �������������������������������������������������������������������������������������������������� 15-2 15�5 Midas Complete Gas Detector Kits ������������������������������������������������������������������ 15-3 15�6 Accessories and Spares ����������������������������������������������������������������������������������� 15-4 16 Specifications ������������������������������������������������������������������������������������������������������������� 16-2 17 Calibration and Bump Testing ����������������������������������������������������������������������������������� 17-2 A Modbus/TCP Interface ���������������������������������������������������������������������������������������������������A-2...
  • Page 6 Midas Gas Detector ® EU Directive 2012/19/EU: Waste Electrical and Electronic Equipment (WEEE) This symbol indicates that the product must not be disposed of as general industrial or domestic waste. This product should be disposed of through suitable WEEE disposal facilities.
  • Page 7: Description

    Midas Gas Detector ® 1 Description...
  • Page 8 Gas Detector ® 1 Description The Midas gas detector is an extractive gas sampling system 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 Asphyxiant, Toxic, Flammable, Pyrophoric, Corrosive, and Oxidizer (including Oxygen) gas sensor cartridges are available that enable detection of gases used or generated in the Semiconductor and other industries.
  • Page 9: Overview

    Midas Gas Detector ® 2 Overview...
  • Page 10: Display

    Diagram 2-1 Diagram 2-2. Main chassis details the Midas general arrangement. Additionally, ® optional Pyrolyzer modules for the detection of NF...
  • Page 11: Pump Module

    Midas Gas Detector ® Diagram 2-3. Midas display module layout ® 2.1.3 Sensor Cartridge Chamber Red alarm LED Normal operation icon The sensor cartridge chamber is located at the front Review mode icon Green power LED of the main chassis below the display module. The...
  • Page 12: Mounting Bracket

    I M E I N S T The terminal module is located on the mounting A L L A T I O bracket. All electrical connections to Midas ® made via this module. Wire entry to the terminal Front Back...
  • Page 13 Ventilated Pyrolyzer Cover pulling the cover forwards off the main chassis. Midas units fitted with a pyrolyzer utilize a ventilated cover due to the high temperatures generated by the pyrolyzer unit (See Diagram 2-7)
  • Page 14: Default Configuration

    Midas Gas Detector ® 3 Default Configuration...
  • Page 15 NOTE: Oxygen levels are 20.9% v/v in a normal atmosphere, equivalent to 17.3 mA. Use caution when integrating an oxygen Midas 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).
  • Page 16 Midas Gas Detector ® Table 3-1. Midas default configuration ® 1.0 mA Fault 2.0 mA Inhibit Current source with: 3.0 mA Maintenance Fault 4.0 to 20.0 mA Gas reading (normal operation) 21.0 mA Over range Toxic Gas Flammable Gas Oxygen...
  • Page 17: Installation

    Midas Gas Detector ® 4 Installation...
  • Page 18: 4�1 Mounting And Location Of Detector

    Midas Gas Detector ® 4 Installation 4.1 Mounting and Location of Detector For ease of installation Midas has been designed ® The Midas gas detector has an integral mounting ® to allow the installation of the mounting bracket bracket assembly that is easily mounted to a...
  • Page 19 (81 mm) 3.2 in 2.5 in 3.9 in. (83 mm) (62 mm) (98 mm) 2.4 in. (60 mm) MIDAS-T-HTP MDA Scientific Midas honeywell 2.3 in. PN: MIDAS-E-CDX SN: 12K-48397 Activate by 24-Nov-12 (59 mm) honeywell 9.1 in. (233 mm) 4.4 in.
  • Page 20: 4�2 Mechanical Installation

    Failure to snag the terminal PCB 6-12 mm (.25 in - .5 in). remove this packing will result in damage to 5. Consider the conduit/cable weight and its the Midas unit. (See Diagram 4-2) ® stress on the installation.
  • Page 21 Midas Gas Detector ® Diagram 4-2. Mechanical installation chassis Removing cover Removing chassis chassis loosen mounting cover bracket mounting bracket Chassis Mounting Screws Internal packing card Remove before use. Internal packing card Remove before use.
  • Page 22 Spacer Bracket Optional Midas DIN Rail Mount ® Optional Midas Pyrolyzer Adjustable “L” Bracket Mount ® Note: MDA Scientific Midas When using the Adjustable honeywell “L” bracket with the High- PN: MIDAS-E-CDX SN: 12K-48397 Activate by 24-Nov-12 honeywell Temperature Pyrolyzer...
  • Page 23: 4�3 Sample And Exhaust Tubing Calculations

    (up to 100 cc/ Likely the final reading will be (0-150 cc/min) Honeywell Analytics recommends thick-wall tubing (1/8” ID) min flow swings) different from what Midas ® for best speed of response. Due to its lower surface area, thick- expected.
  • Page 24: 4�5 Local Detector Option

    Diagram 4-4. Local gas detector option MDA Scientific Midas Power Switch MIDAS-T-001 transmitter installed with in line particulate filter for local ambient monitoring...
  • Page 25 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 , then electrical power ® via the Ethernet port must not be applied). Failure...
  • Page 26 TCP or LonWorks ® RJ-45 Note The 3 relays onboard the Midas unit can be controlled remotely from a separate controller system using ® Modbus/TCP commands (or via LonWorks if the optional interface is used). In this remote mode, the relays ®...
  • Page 27: 4�7 Electrical Connections

    Midas Gas Detector ® 4.7 Electrical Connections configurations. Specific wiring instructions for connecting a Midas to a Honeywell Analytics Sieger Midas can be powered by either 24 VDC via ® System-57 are provided on pages 4-12 to 4-16. traditional discrete wiring or by approximately 48...
  • Page 28 Midas Gas Detector ® Diagram 4-11. Midas to 5701 4-Wire Isolated Connection ® Sieger System 57 +supply Relay/Field Interface Card INT EXT 05701-A-0326 Relay1 05701-A-0327 05701-A-0328 05701-A-0329 05701-A-0330 Relay2 Relay3 -supply +24 V Shielded Cable 5701 Card RJ-45 Sensor Drive Module...
  • Page 29 Midas Gas Detector ® Diagram 4-12. Midas to 5701 3-Wire Sourcing Connection ® Sieger System 57 +supply Relay/Field Interface Card INT EXT 05701-A-0326 Relay1 05701-A-0327 05701-A-0328 05701-A-0329 Relay2 05701-A-0330 Relay3 -supply +24 V Shielded Cable 5701 Card Sensor Drive Module...
  • Page 30 Midas Gas Detector ® Diagram 4-13. Midas to 5701 3-Wire Sinking Connection ® Sieger System 57 +supply Relay/Field Interface Card INT EXT 05701-A-0326 Relay1 05701-A-0327 05701-A-0328 05701-A-0329 05701-A-0330 Relay2 Relay3 -supply +24 V Shielded Cable 5701 Card Sensor Drive Module...
  • Page 31 -supply (S) 15 (01) 17 +24 V Shielded Cable Note: The above schematic shows the MIDAS connected RJ-45 to channel 1 on the 5704 card. The terminal numbers for all four channels are as follows: MIDAS Function Loop + Loop -...
  • Page 32 (01) 17 (NS) 19 +24 V Shielded Cable Note: RJ-45 The above schematic shows the MIDAS connected to channel 1 on the 5704 card. The terminal numbers for all four channels are as follows: MIDAS Function Analog Out Common Midas Terminal Number...
  • Page 33 Midas Gas Detector ® Diagram 4-16. Midas to Touchpoint1 4-Wire Connection ® +supply INT EXT Relay1 touchpoint 1 Relay2 Relay3 -supply +24 V Shielded Cable RJ-45 24 VDC Power Supply MIDAS Simplified Internal Schematic External touchpoint1 Customer-Provided Power Supply Simplified Internal Schematic...
  • Page 34 Midas Gas Detector ® Diagram 4-17. Midas to Touchpoint1 3-Wire Sourcing Connection ® +supply INT EXT Relay1 Relay2 Relay3 touch point 1 -supply +24 V Shielded Cable RJ-45 MIDAS Simplified Internal Schematic touch point1 Simplified Internal Schematic 4-20 mA Controlled...
  • Page 35 Midas Gas Detector ® Diagram 4-18. Midas to HA71 3-Wire Sourcing Connection ® 0010-1115 ASSY# 10-0158 ST-71 ANALOG INPUT BOARD +supply INT EXT Relay1 Relay2 Relay3 -supply DC PWR +24 V CH1/9 CH3/11 CH5/13 CH7/15 Shielded Cable +EXC- CH2/10 CH4/12...
  • Page 36 Midas Gas Detector ® Diagram 4-19. Midas to HA71 4-Wire Connection ® 0010-1115 ASSY# 10-0158 ST-71 ANALOG INPUT BOARD +supply INT EXT Relay1 Relay2 Relay3 -supply Shielded Cable +24 V DC PWR CH1/9 CH3/11 CH5/13 CH7/15 +EXC- CH2/10 CH4/12 CH6/14...
  • Page 37 Midas Gas Detector ® Diagram 4-20. Midas to Touchpoint4 4-Wire Connection ® +supply INT EXT Relay1 touch point4 Relay2 Relay3 -supply +24 V Shielded Cable RJ-45 24 VDC Power Supply MIDAS Simplified Internal Schematic External touchpoint4 Customer-Provided Power Supply Simplified Internal Schematic...
  • Page 38 Midas Gas Detector ® Diagram 4-21. Midas to Touchpoint4 3-Wire Sourcing Connection ® +supply INT EXT Relay1 touchpoint 4 Relay2 Relay3 -supply +24 V Shielded Cable RJ-45 MIDAS Simplified Internal Schematic touchpoint4 Simplified Internal Schematic 4-20 mA Controlled Internal Current Source...
  • Page 39: 4�8 Refitting The Main Chassis

    3. Slide the chassis backwards on the 4.9 Installing the Sensor Cartridge mounting bracket assembly so that the PCB and connector and tubes engage The Midas sensor cartridge is supplied separately ® simultaneously. (See diagram below). and needs to be fitted to the detector’s main chassis.
  • Page 40 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? slots cartridge fitted tabs Caution When refitting the cover to the Midas unit, ® use caution to prevent damage to the RFI shielding tabs attached to the chassis. 4-24...
  • Page 41: Startup

    Midas Gas Detector ® 5 Startup...
  • Page 42 Prior to carrying out any work ensure local and site procedures are followed. Ensure • When ‘Change Gas’ scrolls on the that the associated control panel is inhibited display, hit the ‘3’ on the Midas front ® so as to prevent false alarms. panel.
  • Page 43: Operation

    Midas Gas Detector ® 6 Operation...
  • Page 44: 6�1 Normal Operation Mode

    Note: Note The examples in Table 6-1 are for a linear The first time the Midas® is started with a 4-20 mA output over a full scale range of new sensor cartridge, an F49 or F88 fault 2 ppm. The current output for a given gas code may be displayed;...
  • Page 45 Midas Gas Detector ® Table 6-1. Normal operation display and output states. Backlight Operational 4-20 mA output Relay status LEDs Display State (for 2ppm range) Classic Mode Multi Color Mode Alarm 2 Alarm relay 1 activated Green Red flash 8 mA...
  • Page 46: Resetting Alarms, And Faults

    When in review mode the unit will automatically The alarm function of Midas® can be set to latching (See Section 7.2.1) so that when an alarm occurs return to the main normal operation status display...
  • Page 47 Midas Gas Detector ® Table 6-2. Review menu overview. Screen Screen Display Screen 1 Screen 2 Screen 3 Screen 4 Screen 5 Screen 6 Screen 7 Screen 8 Transmitter Checksum Password Password Software software key 1 key 2 revision Gas Selection...
  • Page 48: 6�3 Overview Of Set-up, Calibration, And Test Mode

    Midas® unit. If cancelled in that particular submenu. an incorrect code is entered the display will show ‘Err’...
  • Page 49 2 digit 3 digit 4 pass code pass code pass code digit 4 digit 1 digit 2 digit 3 Set backlight mode bm: C(classic mode) or bm: m (multi color mode) Set pump control PUMP frequency * MIDAS-E-LEL 0-1825 days...
  • Page 50: Calibration Menu Overview

    Midas Gas Detector ® 6.3.2 Calibration Menu Overview ‘ CAL’ The calibration menu allows calibration of the detector zero, span, flow and 4-20 mA. The menu is simply navigated using the ‘s’ up and ‘t’ down buttons to select the required submenu and then using ‘3’...
  • Page 51 Midas Gas Detector ® Table 6-4. Calibration menu overview. Display Screen 1 Screen 2 Screen 3 Screen 4 Screen 5 Screen 6 Screen 7 Screen 8 Icon flashes Unit is zeroing PASS is Select inhibit state Set inhibit alerting user...
  • Page 52: Test Menu Overview

    Midas Gas Detector ® Table 6-5. Test Submenu 6.3.3 Test Menu Overview ‘ tESt’ Display Screen 1 Screen 2 Screen 3 Screen 4 The test menu is used to test the detector gas Apply bump Press ‘X’ to reading using bump test gas, and for simulation of...
  • Page 53: Navigating Modes And Submenus

    Midas Gas Detector ® 7 Navigating Modes and Submenus...
  • Page 54: 7�1 Review Mode

    Midas Gas Detector ® 7 Navigating Modes and Sub- 7.1.1 Review Software ‘SW’ menus 1. Select the software ‘SW’ submenu and press ‘3’ to accept. The following sections provide step-by-step 2. The software version number is displayed. procedures for navigating all the modes and 3.
  • Page 55: Review Alarms

    Midas Gas Detector ® 7.1.2 Review Alarms ‘ ALm’ 7.1.3 Review 4-20 mA Output “mA” 1. Select the alarms ‘ Alm’ submenu and press 1. Select the 4-20mA ‘mA’ submenu and press ‘3’ ‘3’ to accept. to accept. ‘4 mA’ will be displayed 2.
  • Page 56: Review Calibration

    Midas Gas Detector ® 7.1.6 Review Date and Time ‘timE’ 7.1.5 Review Calibration ‘ CAL’ Select the review date and time ‘timE’ submenu and 1. Select the review calibration ‘ CAL’ submenu press ‘3’ to accept. and press ‘3’ to accept.
  • Page 57: Review Detector Address

    Midas Gas Detector ® 7.1.7 Review Detector Address ‘ nEt’ 7.1.8 Review Event Log ‘ Hi St’ 1. Select the review address ‘ nEt’ submenu and 1. Select the review event log ‘ Hi St’ submenu. press ‘3’ to accept.
  • Page 58: Review Lcd Backlight Mode

    Gas Detector ® 7.1.9 Review LCD Backlight Mode ‘Err’ and return to the normal operation mode. If a pass code is forgotten contact your local Honeywell ‘LCD’ Analytics service department. 1. Select the review ‘LCD’ submenu and press ‘3’ Note to accept.
  • Page 59: Set-up Menu

    Midas Gas Detector ® 7.2.1 Set-up Menu ‘ SEt’ press the ‘s’ up button for a few seconds. Enter the pass code (if set). Use the ‘s’ up or ‘t’ down The set-up menu allows the settings of the detector buttons to select the set-up menu ‘...
  • Page 60 Midas Gas Detector ® Note 13. Use the ‘s’ up or ‘t’ down buttons to change the A2 value. When replacing a single gas sensor cartridge with the same type single gas sensor cartridge, 14. Press ‘3’ to display the flashing alarm on time no change of gas confirmation is required.
  • Page 61: Set 4-20 Ma Output

    Midas Gas Detector ® 7.2.3 Set 4-20 mA output “mA” 7.2.4 Set Faults ‘ FLt’ 1. Use the ‘s’ up or ‘t’ down buttons to select 1. Use ‘s’ up or ‘t’ down buttons to select the set the set faults ‘ FLt’ submenu and press ‘3’ to 4-20mA ‘mA’...
  • Page 62: Set Calibration Interval

    Modbus/TCP or LonWorks® control submenu. from a centralized control system. In this mode, the Midas® relays are only controlled 6. Press ‘X’ to return to set-up, calibration and test via the remote system when set to nEtr. menu selection.
  • Page 63: Set Address

    13. Use the ‘s’ up or ‘t’ down buttons to change then the detector will automatically appoint a the minutes setting (between 00 and 59). valid IP address when it reboots. The Midas® 14. Press ‘3’ to update the changes (UPdt displayed) will display “UPdt” and request a reboot after and return to step 1.
  • Page 64: Set Pass Code

    If the IP address is changed the new settings 4. Press ‘s’ up or ‘t’ down to set the second value. will not be implemented until the Midas® 5. Press ‘3’ to enter and repeat for the third and unit is rebooted.
  • Page 65: Set Lcd Backlight Mode

    6. Press ‘X’ again to return to normal operation. Note Midas Generation 1 software versions 1.12 and later and all Midas Geration 2 software versions include automatic pump frequency detection. Manual setting of pump control frequency is uncommon and is needed only if pump frequency differs significantly from the expected range.
  • Page 66: 7�3 Calibration Menu

    Midas Gas Detector ® 7.3 Calibration Menu ‘ CAL’ 7.3.1 Zero Calibration ‘ 0CAL’ The calibration menu allows the calibration settings 1. Use the ‘s’ up or ‘t’ down buttons to select the of the detector to be changed. The calibration menu zero calibration ‘...
  • Page 67: Span Calibration

    Midas Gas Detector ® be displayed). 7.3.2 Span Calibration ‘ SPAn’ 15. The selected outputs will be inhibited until the inhibit timeout has elapsed. 1. Use the ‘s’ up or ‘t’ down buttons to select the span calibration ‘ SPAn’ submenu and press ‘3’...
  • Page 68 Midas Gas Detector ® Note 14. Use ‘s’ up or ‘t’ down to select the purging timeout from 0 min. to 99 min. Default purging If the inhibit timeout elapses before the inhibit state is set back to ‘nonE,’ maintenance fault time is 3 min.
  • Page 69: Flow Calibration

    Midas Gas Detector ® 7.3.3 Flow Calibration ‘ FLoW’ 11. Press ‘s’ up or ‘t’ down keys to adjust the reading on the external flow meter to the set point 2 target value. (NOTE: The reading must 1. Use the ‘s’ up or ‘t’ down buttons to select the be +/- 50 cc/min of target to be accepted).
  • Page 70: Ma Calibration

    The test menu comprises of 3 submenus as shown in the table below. If the Midas chassis becomes disassociated from its original mounting bracket, this calibration procedure Caution must be followed to assure proper output voltages When using the Test Mode with the as the factory calibration is invalidated.
  • Page 71: Bump Test

    Midas Gas Detector ® 7.4.1 Bump Test ‘ bUmP’ 7.4.2 Alarm/Fault Test ‘ SIm’ 1. Use the ‘s’ up or ‘t’ down buttons to select 1. Use the ‘s’ up or ‘t’ down buttons to select the the bump test ‘ bUmP’ submenu and press ‘3’...
  • Page 72: Inhibit State

    Midas Gas Detector ® Table 7-8. Inhibit states. 7.4.3 Inhibit State ‘ InH’ Inhibit State Display Function 1. Use the ‘s’ up or ‘t’ down buttons to select the None nonE No functions are inhibited. inhibit ‘ InH’ submenu and press ‘3’ to accept.
  • Page 73: Stimulate 4-20ma

    Midas Gas Detector ® 7.4.4 Stimulate 4-20mA ‘4-20 mA’ 1. Use the ‘s’ up or ‘t’ down buttons to select the ‘4-20’ submenu and press ‘3’ to accept. 2. The display shows ‘S 04’ indicating a 4 mA output is being stimulated.
  • Page 74: Maintenance

    Midas Gas Detector ® 8 Maintenance...
  • Page 75 For details regarding sensor cartridge calibration and bump testing method refer Section The internal pump module is designed to operate for a minimum of 24 months and it is recommended that this pump module (part number MIDAS-A-007) be replaced every 2 years.
  • Page 76: 8�1 Sensor Cartridge Replacement

    8. Confirm that the LCD messages “LOAd” and Honeywell Analytics recommends that the sensor “WArm” are replaced by a zero concentration cartridge be replaced without power to the Midas ® display. Confirm that the yellow fault LED is unit. If fitting a sensor cartridge to a unit that is off.
  • Page 77: 8�2 Pump Replacement

    5. Pull the main chassis forward to disconnect it from the mounting bracket assembly. Caution When refitting the cover to the Midas unit, ® use caution to prevent damage to the RFI shielding tabs attached to the chassis.
  • Page 78 Midas Gas Detector ® 6. Remove the 4 pump module screws. 8. Slide the pump module out and disconnect the connector from the pcb. 7. Remove the two fixing clips and disconnect the tubes at the manifold. 9. Fit the new pump module following the steps above in reverse order.
  • Page 79: 8�3 Reassembling The Detector

    8.3 Reassembling the Detector 8.4 Filter Replacement 1. Align the PCB at the top rear of the main The internal filter (MIDAS-A-009) has been designed chassis with the connector located at the top for easy replacement. of the mounting bracket assembly.
  • Page 80: 8�5 System Leak Check Procedure

    “F81” (Flow Fail) – ® approximate time to fault is 1 minute 5. Remove the plug 6. Allow 15 seconds or so to allow the Midas ® flow to stabilize then clear the fault by pressing and holding ‘X’...
  • Page 81 “F81” (Flow Fail) – ® approximate time to fault is 1 minute 10. Remove the plug 11. Allow 15 seconds or so to allow the Midas flow ® and concentrations to stabilize then clear the fault by pressing and holding ‘X’...
  • Page 82: Pyrolyzer Module Options

    Midas Gas Detector ® 9 Pyrolyzer Module Options...
  • Page 83 Freon end-of-line filter (P/N 1830-0027). very low trace amounts of PFC compounds. The filter is filled with charcoal to remove Freon Diagram 9-1. Midas gas detector with pyrolyzer modules (left to right: MIDAS-T-0P3, MIDAS-T-00P, MIDAS-T-HTP, and MIDAS-T-NP1). Midas Gas Detector Ventilated Top Cover...
  • Page 84 Honeywell Analytics strongly Adjustment of the gas flow through the instrument recommends that the ventilated Midas Top is done automatically. It is recommended to Cover (part number MIDAS-A-039) be used in all pyrolyzer applications. perform a leak check (see Section 8.5) before...
  • Page 85: 9�1 Fitting The Pyrolyzer Module

    1. Disconnect power to the detector. 2. Unscrew the thumbscrew on the front panel. 3. Remove the cover by pulling it forward off the chassis, as illustrated in Diagram 9-4. Diagram 9-4. Removing the Midas cover. cover chassis mounting bracket 6.
  • Page 86 Because of the higher operat- ing temperatures when using the pyrolyzer module, terminal Honeywell Analytics strongly recommends that the module ventilated Midas Top Cover (shown in Diagram 9-1) be used in all pyrolyzer applications. power switch socket (con5)
  • Page 87: 9�2 Reassembling The Detector

    CAUTION: The LCD is fragile. Do not apply pressure to its surface. 3. Tighten the retaining screws to secure the chassis to the mounting bracket. 4. Insert the MIDAS-S-XHF sensor cartridge ? ? ? ? ? ? ? ? ? ?
  • Page 88: 9�3 Configuring The Detector

    “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).
  • Page 89 Midas Gas Detector ® 10 Optional LonWorks ® Interface Installation 10-1...
  • Page 90: Midas Lonworks Interface Module

    LonWorks ® ® mounting template on reverse side. network using an optional interface module (MIDAS- 3. Connect 24V DC power and LonWorks ® T-LON). This gateway provides both power and wires to the pluggable connectors. Clamp...
  • Page 91: Wiring The Midas For Lonworks

    Lon A Lon B Wiring Notes: 1. Maximum wire size is 16 AWG. 2. Input voltage range is 20.4 to 26.4 VDC. Midas pyrolyzers and transmitters with LonWorks modules have a restricted minimum voltage requirement of 21.6 VDC. 3. It is mechanically possible to misalign Plug1 and Plug2.
  • Page 92 ® Diagram 10-3. LonMark Diagram 10.2 LonWorks Software ® 10.2.1 LonWorks Overview ® MIDAS LonWorks Gateway Device Open-loop sensor Functional Block LonWorks is a communications protocol developed ® nvoConc by Echelon Corporation which facilitates peer-to- SNVT_ppm_f peer communications in a control network. The...
  • Page 93: Network Variable Behaviors

    The .value provided to increase compatibility with Echelon byte of SNVT_switch will be the fault number. These LonPoint modules. are listed in Section 6 of the Midas Quick Start ® Note that the values stored in nvoAlmL are slightly Guide.
  • Page 94 Midas Gas Detector ® value is twice the fault number. For example when nvoMonState a flow failure (Fault F81) exists, the raw value of The bits in this variable are shown graphically nvoFaultS will be {0xA2, 0x01}. This is displayed by in Table 10-2.
  • Page 95 LonWorks . However, ® In warmup mode these NVI’s will have no effect unless the Midas ® configured to respond to network relay commands. Always zero, for future expansion The following procedure lists how to configure the...
  • Page 96 Equivalent to RQ_NORMAL to de-energize. These modes include power ENABLE failures and CPU lockups. Furthermore, 12 RQ_ALARM_NOTIFY_ Send “inhibit alarms” power must be removed from the Midas ® DISABLE command certain maintenance procedures. External equipment should be designed to prevent...
  • Page 97 2 under_range electrical_fault maintenance fault unable_to_measure comm_failure communication failure to Midas ® fail_self_test communication failure to Midas ® self_test_in_progress warmup mode locked_out manual_control in_alarm any alarm in_override report_mask mere capability report...
  • Page 98: Other Characteristics

    After commissioning, Echelon’s LonMaker tool will put this device into the “offline” The LonWorks “wink” command causes the service ® state. In this mode, the Midas interface ® LED to energize for approximately six seconds. will not transmit over LonWorks .
  • Page 99: Troubleshooting And Fault Diagnosis

    Midas Gas Detector ® 11 Troubleshooting and Fault Diagnosis 11-1...
  • Page 100 11 Troubleshooting and Fault Diagnosis General troubleshooting guide and specific fault code table for the Midas gas detector. Please check ® Honeywell Analytics’ website or contact Honeywell Analytics for details on the current software revision. Table 11-1. Fault code descriptions. Fault Description...
  • Page 101 Contact Honeywell Analytics Service. Replace the pyrolyzer. Pyrolyzer power unreg Target power not achieved within specified time Check the 24 volt power supply. If it is not 24 VDC ±2.4, contact Honeywell span. Analytics Service. Replace pyrolyzer. Pyrolyzer heater mismatch Different pyrolyzer type required Contact Honeywell Analytics Service.
  • Page 102: Reflex

    Midas Gas Detector ® 12 REFLEX ® 12-1...
  • Page 103 ‘echo’ from the cell as it responds to the applied signal. If the cell is deteriorating within certain pre-set limits based on the received signals then Midas will decrease the ® REFLEX sampling interval in order to establish the ®...
  • Page 104: Internal Web Server

    Midas Gas Detector ® 13 Internal Web Server 13-1...
  • Page 105: 13�1 Physical Network Components

    Midas Gas Detector ® 13 Internal Web Server with a DHCP server, the addresses must be set manually. To view or set the IP address of the Midas ® The Midas gas detector unit utilizes an Ethernet ® Section 7.2.6. The procedure for setting the IP port with the TCP/IP protocol as standard.
  • Page 106 Midas Gas Detector ® Diagram 13-1. IP Address setting in Windows XP. 13-3...
  • Page 107: 13�3 Running The Web Browser

    13.3 Running the Web Browser Start Microsoft™ Internet Explorer or similar web browser. Set the URL to “http://xxx.xxx.xxx.xxx” where the “xxx” fields are replaced with the IP address of the Midas . A screen similar to Diagram 13-2 should ®...
  • Page 108 Midas Gas Detector ® Diagram 13-3. Event History. All Midas events including calibrations, faults, and Event History will store approximately 400 events, ® alarms are data logged with a timestamp, description overwriting the oldest with the newest data. 30 and category code. The events are color-coded to seconds of data is stored for each alarm event - 15 allow a quick overview of the type of event logged.
  • Page 109 Midas Gas Detector ® Diagram 13-4. Event Log Printing Dialog. Diagram 13-5. Event Log Output Note Pop-up blockers may interfere or prevent proper operation. 13-6...
  • Page 110 Midas Gas Detector ® Diagram 13-6. Gas Concentration Graph This web page is accessed from the “Details” button from the Event History page. The gas concentration levels for a given alarm are displayed for a period of 30 seconds - 15 seconds before and 15 seconds after the alarm occurred.
  • Page 111 Midas Gas Detector ® Diagram 13-7. Calibration Certificate. An electronic copy of the original sensor calibration certificate can be accessed from this section and printed for audit purposes. 13-8...
  • Page 112 Midas Gas Detector ® Diagram 13-8. Contact Information / Help. This page provides a listing of the fault codes and recovery information as well as a link to Honeywell Analytics website. 13-9...
  • Page 113 Midas Gas Detector ® Diagram 13-9. General Configuration. This panel allows the user to customize the location identifier for the individual Midas units with more ® detailed text. Enter the text and click Accept to update the Midas web page. The date format can be ®...
  • Page 114 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 ®...
  • Page 115 Midas Gas Detector ® Diagram 13-11. 4-20 mA output configuration. This page enables the user to configure the 4-20mA output scale. The default value is 0 from the measuring range. When replacing a sensor cartridges with a different cartridge type, these values will be changed to the default.
  • Page 116 Midas Gas Detector ® Diagram 13-12. Fault and Relay Configuration. This page enables the user to select latching fault mode; normally energized or de-energized mode for the relays. The relays can be configured in 4 states. Three states allow local response and one allows remote Modbus/TCP control.
  • Page 117 Gas Detector ® Diagram 13-13. Network Configuration. The Network setup enables a manual or automated selection of the Midas unit’s IP and subnet address. ® Additional information regarding the gateway address and an identifier name for the network can be added on this page.
  • Page 118 Note The passcode should be recorded in a separate database along with the serial number for each Midas ® unit. Should the passcode be lost or forgotten, Honeywell Analytics is not responsible for any lost time or inconvenience.
  • Page 119 Gas Detector ® Diagram 13-15. Time and Date. The time and date can be configured via this web page. In addition the Midas can have its time ® synchronized automatically with the web browsing computer’s own clock by selecting the “Synchronize with Computer”...
  • Page 120 Gas Detector ® Diagram 13-16. Zero Calibration. A zero gas calibration can be initiated via the web page and is ideal for when access to the Midas unit ® is restricted due to its location. Follow the on screen instructions to perform the calibration sequence correctly.
  • Page 121 Midas Gas Detector ® Diagram 13-17. Span Calibration. The span calibration sequence can be performed using the web page interface. Parameters such as the gas humidity and the gas type can be selected dependent on the gases available per sensor cartridge.
  • Page 122 Gas Detector ® Diagram 13-18. Flow Calibration. The Midas transmitter can have its flow settings calibrated and changed using the web page interface. ® Options to set two flow set points are available. Follow the on screen sequence of messages to perform the flow calibration correctly.
  • Page 123 Midas Gas Detector ® Diagram 13-19. 4-20mA Calibration. The analog output from the Midas can be calibrated for integration with an external control device. Follow ® the on screen sequence of messages to perform the 4-20mA calibration correctly. 13-20...
  • Page 124 Midas Gas Detector ® Diagram 13-20. Bump Test. A simple gas checking test or “Bump Test” can be applied using the web page interface. The bump test confirms that the sensor can still respond to an applied concentration of gas but is not a formal calibration.
  • Page 125 Via this web page an operator can test the alarm control philosophy by simulating a number of alarm or fault scenarios. Note that activating these simulations will drive any external alarm devices connected to the Midas including the Modbus/TCP and the relay outputs. The simulation may be perceived as a false ®...
  • Page 126 (in minutes) that the Inhibit mode will stay active for until it will automatically default to No Inhibit mode. Note The Midas can still monitor gas while in Inhibit Mode. Except in Inhibit Monitoring and Outputs. ®...
  • Page 127 Midas Gas Detector ® Diagram 13-23. 4-20mA Test. This web page stimulates the analog 4-20 mA output to go to any desired current in 1 mA steps between 1 and 21 mA. This can be used to test the response of external equipment.
  • Page 128 Midas Gas Detector ® Diagram 13-24. Authorized Users. The Diagnostics and Service menus are for specialist product support activities performed only by approved Honeywell Analytics service personnel and are not available to the end user. 13-25...
  • Page 129: Typical Installation Topologies

    Midas Gas Detector ® 14 Typical Installation Topologies 14-1...
  • Page 130: 14�1 Conventional Installation

    Midas Gas Detector ® 14 Typical Installation Topologies Midas has very flexible installation options to allow ® the user to select the one most suitable for their specific application. 14.1 Conventional Installation Relays 24V DC Relays Analog 24V DC Relays...
  • Page 131: 14�2 Modbus/tcp Installation

    Pyro Power over Ethernet PoE, 3Com 3CNJPSE-US (injector) 15.4 or Powered Hub NetGear FS108P D-Link DES-1316 PC Access to MIDAS units via options: Option(a) Allied AT-8524POE Telesyn Ethernet CAT 5 cable Option(b) Wireless Router Powered Hub or PoE Hub...
  • Page 132: Ordering Information

    Midas Gas Detector ® 15 Ordering Information 15-1...
  • Page 133 Consult Honeywell Analytics for additional gases detectable with this option. Pyrolyzer includes Pyrolyzer Quick Start Guide and installation screws. Order the sensor cartridge separately (MIDAS-S-XHF or MIDAS-E- XHF for NF3 and CH3F; MIDAS-S-XCF or MIDAS-E-XCF for C4F6, C5F8, and CH2F2). Midas Midas LonWorks Interface Module.
  • Page 134 Boron Trichloride 0-8 ppm, Dichlorosilane 0-8 ppm, Hydrogen Bromide 0-8 ppm, Hydrogen Chloride 0-8 ppm MIDAS-K-HCL Boron Trifluoride 0-4 ppm, Hydrogen Fluoride 0-12 ppm, Nitrogen Trifluoride 0-40 ppm and Tungsten Hexafluoride 0-12 ppm kit MIDAS-K-HFX Bromine 0-0.4 ppm and Chlorine Dioxide 0-0.4 ppm kit...
  • Page 135 IPA filter) 1830-0027 Flexible Conduit 21” (0.53 m) - length 0235-0128 Flexible Conduit 27” (0.68 m) - length 0235-0163 Operating Instructions and Quick Start Guide for Midas Gas Detector - English MIDAS-A-001 ® End of line particulate filter 0780248 “L”...
  • Page 136: Specifications

    Midas Gas Detector ® 16 Specifications 16-1...
  • Page 137 1.20Kg (2.65 lb) Power Requirements: 24 V Nominal -15 to +10% (20.4 to 26.4 VDC) Operating Voltage Midas pyrolyzers and Midas Transmitters with LonWorks Modules have a ® ® restricted minimum voltage requirement of 21.6 VDC. Operating Voltage with Power over 48 VDC Power-over-Ethernet (IEEE 802.3af compliant)
  • Page 138 Midas Gas Detector ® Certification & Specification: CE marked for sale in European community European Meets EN 50270:2015 (type 2) / EN 61000-6-4: 2007 + A1:2011 / IEC 60092-504:2001 Environmental ETL approved UL61010-1 Ed:3 Electrical IEEE 802.3af-2003 Response Times: Typically...
  • Page 139: Calibration And Bump Testing

    Midas Gas Detector ® 17 Calibration and Bump Testing 17-1...
  • Page 140 ISO a background gas will affect the ability for the 9000 quality controlled procedure. The Midas sensor ® detector to properly calibrate to the correct cartridge design is very robust and resistant to long levels.
  • Page 141 (20°C, 50% rH). The tables in Appendix B indicate the recommended Preparation calibration or bump test gas for the Midas sensor ® cartridges: Most of the test gases are highly toxic. It is essential that personnel using these toxic gases be trained in Consult with your Honeywell Analytics Service their use.
  • Page 142 5. Make sure that the tubing length is as short as Note possible and that there are no blockages. The electrochemical CO cell (MIDAS-S/E- CO2) is not designed for use in applications 6. Make sure that the transmitter is not displaying that are oxygen deficient (<15% O a fault before the test is started.
  • Page 143: A Modbus/tcp Interface

    Midas Gas Detector ® A Modbus /TCP Interface ®...
  • Page 144: Reading Status From The Midas

    IP/HTML web pages and via the Modbus/TCP networking protocol. This section defines the format of data in Modbus/TCP registers. More information about Modbus/TCP can be obtained from www. modbus.org. More information on the Midas ® pages is contained in Section The Midas is a Modbus/TCP “server”...
  • Page 145 Midas Gas Detector ® Table A1 – User-Readable Modbus Holding Registers Ref. Addr. Bits Function Value Enumeration Reg. Name 40001 STTS Status Monitoring state integer 0: Warmup 1: Monitor mode with inhibit state “nonE” 2: Monitor mode but alarms inhibited, inhibit state “ALm”...
  • Page 146 Midas Gas Detector ® Ref. Addr. Bits Function Value Enumeration Reg. Name 40004 FCN2 Gas Concentration in floating point format word 2 of 2 40005 CONC Gas Concentration in Integer Format Conversion equation: ppm value = Registry Value * 1/10 DECP...
  • Page 147 Midas Gas Detector ® Ref. Addr. Bits Function Value Enumeration Reg. Name Maintenance fault active Instrument fault active Flow fault active 40018 FSI Internal communication fault active Pyrolyzer fault active Sensor fault active Range over fault active 7-15 Reserved for future expansion...
  • Page 148: Sending Commands To The Midas

    Midas Gas Detector ® Table A2. User-Writable Modbus Holding Registers A.2 Sending Commands to the Midas ® Ref. Addr. The Midas can accept eleven commands over ® Function Reg. Name Modbus as listed in Table 3. It is possible to reset...
  • Page 149: Determining The Mac Address

    With most computer equipment, knowledge of the MAC address is not necessary. The mapping between IP addresses and MAC addresses is 5. Search for the IP address of the Midas in the ® handled transparently by the address resolution list.
  • Page 150: B Gas Tables

    Midas Gas Detector ® B Gas Tables...
  • Page 151 0-0.4 ppm 0.048 ppm 0.05 ppm 0.1 ppm MIDAS-S/E-BR2 1830-0055 780248, 1991-0147 0-2 vol% 0.25 vol% 0.25 vol% 0.50 vol% MIDAS-S/E-CO2 1 vol% 1 vol% 1 vol% 1830-0055 780248, 1991-0147 0-2 vol% 0.25 vol% 0.25 vol% 0.50 vol% MIDAS-I-CO2 1 vol%...
  • Page 152 Carbon Monoxide 0-100 ppm 12 ppm 12.5 ppm 25 ppm MIDAS-S/E-COX 1830-0055 1991-0147 Chlorine 0-2 ppm 0.24 ppm 0.25 ppm 0.50 ppm MIDAS-S/E-HAL 1830-0055 1991-0147 Chlorine Dioxide 0-0.4 ppm 0.048 ppm 0.05 ppm 0.1 ppm MIDAS-S/E-BR2 0.27 1830-0055 780248 2,...
  • Page 153 MIDAS-E-CFH 43.41 Range 1830-0055 780248, 1991-0147 2 vol% 50% LEL 0-100% 1830-0055 Hydrogen (%LEL) 4.5% LEL 10% LEL 20% LEL MIDAS-S/E-LEL 780248, 1991-0147 44% LEL vol% 1830-0055 780248, 1991-0147 Hydrogen (ppm) 0-1000 ppm 120 ppm 125 ppm 250 ppm MIDAS-S/E-H2X...
  • Page 154 Length (m) (ppm) (sec) (sec) (Note: Due to U.S. Government regulations, this range may be subject to restrictions requiring special licensing for certain countries outside North America. Contact Honeywell Analytics for eligibility information.) 780248, 1991-0147 Hydrogen Sulfide 0-40 ppm 4.8 ppm...
  • Page 155 0-1200 ppb 145 ppb 150 ppb 300 ppb MIDAS-S/E-PHX 1830-0055 780248, 1991-0147 0-100% LEL 4.5% LEL 10% LEL 20% LEL MIDAS-S/E-LEX 1 vol% 50% LEL 1 vol% Propane (%LEL) C 1830-0055 780248, 0.85 0.85 1991-0147 Propane (%LEL) C 0-100% LEL 4.5% LEL...
  • Page 156 2.4 ppm 2.5 ppm 5 ppm MIDAS-S/E-SHX 1991-0147 or 1830-0055 780248, 1991-0147 Silane Low Level 0-2 ppm 0.24 ppm 0.25 ppm 0.50 ppm MIDAS-S/E-SHL 1830-0055 1991-0147 Sulfur Dioxide 0-8 ppm 0.95 ppm 1 ppm 2 ppm MIDAS-S/E-SO2 1830-0055 780248, 1991-0147...
  • Page 157 MIDAS-E-LEL cartridge carries the standard 2 year warranty but can be calibrated to areas above %25 LEL. extend its life to 5 years. For the 2 year cartridges, Honeywell Analytics allows for a period of up to 6 months after the manufactured date for cartridge installation and then 2 years of use.
  • Page 158: C Warranty

    Midas Gas Detector ® C Warranty...
  • Page 159 Contact your Honeywell Analytics representative for information on available Service Contracts. All products are designed and manufactured to the Honeywell Analytics shall not be liable for any loss or latest internationally recognized standards by Honeywell damage whatsoever or howsoever occasioned which...
  • Page 160: Sensor Cartridge Warranty

    ® above. They will be replaced at no charge within in MIDAS-S carry a 12 month (1 year) warranty from that period only if they will not provide a correct switch-on/installation or up to 18 months from the date...

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