MDA Scientific midas Operating Instructions Manual

Toxic, flammable and oxygen gas detector
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O P E R AT I N G I N S T R U C T I O N S
T O X I C , F L A M M A B L E
A N D O X Y G E N G A S D E T E C T O R
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Summary of Contents for MDA Scientific midas

  • Page 1 O P E R AT I N G I N S T R U C T I O N S T O X I C , F L A M M A B L E A N D O X Y G E N G A S D E T E C T O R...
  • Page 2: Table Of Contents

    © 2004 Zellweger Analytics Issue 1 12/2004 MIDAS-A-001 TABLE OF CONTENTS Table of contents General description Product overview 3.1 Main chassis 3.1.1 Display module 3.1.2 Pump module 3.1.3 Sensor cartridge chamber 3.2 Mounting bracket assembly 3.2.1 Mounting bracket 3.2.2 Terminal module 3.3 Sensor cartridge...
  • Page 3 9.1.1 Sensor cartridge fitting/replacement 9.2 Pump replacement 9.3 Re-assembling the detector 9.4 Filter replacement 10 Pyrolyzer module option 10.1 Fitting the pyrolyzer module 10.2 Re-assembling the MIDAS detector ® 11 Analog module 11.1 Fitting the analog module 11.2 Re-assembling the MIDAS detector ®...
  • Page 4 16.4 MIDAS plug in sensor cartridges (standard warranty) ® 16.5 MIDAS plug in sensor cartridges (extended warranty) ® 16.6 MIDAS complete gas detector kits ® 16.7 Accessories and spares 17 General specifications 18 Calibration and bump testing 19 Warranty statement 20 Software menu state charts 20.1 Top level...
  • Page 5: General Description

    The MIDAS gas detector comprises of 4 parts: the main chassis, the mounting bracket assembly, the sensor ® cartridge and the unit cover. Diagram 1 details the MIDAS general arrangement. Additionally, there is an ® optional Pyrolyzer module required for the detection of NF and an optional Analog module for the connection of external 4-20 mA devices.
  • Page 6: Main Chassis

    3.1 Main Chassis The main chassis comprises of the display module, pump assembly, and plug in sensor cartridge chamber. Diagram 2. Main chassis Pump module Display module Sensor cartridge chamber...
  • Page 7: Pump Module

    3.1.2 Pump Module The pump module is located at the back of the main chassis. It draws the gas sample from the inlet port located at the bottom of the mounting bracket assembly via an inline filter to the sensor cartridge chamber located at the front of the main chassis.
  • Page 8: Sensor Cartridge

    3.3 Sensor Cartridge A wide range of toxic, flammable or oxygen sensor cartridges can be fitted to MIDAS . The plug in sensor ® cartridges are fitted in the sensor cartridge chamber at the front of the main chassis. To access the chamber the unit cover is removed by unscrewing the thumbscrew located at the front of the detector.
  • Page 9: Default Configuration

    MIDAS ® 5 INSTALLATION For ease of installation MIDAS has been designed to allow the installation of the mounting bracket assembly ® and terminal 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 chassis and sensor cartridge.
  • Page 10: Mounting And Location Of Detector

    The MIDAS 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. Diagram 7. MIDAS outline dimensions ® 5.91 [150.00]...
  • Page 11: Mechanical Installation

    Below are some considerations when installing the MIDAS Gas Detector: ® 1. Mount the detector on a surface that is flat, firm and suitable for its size and weight. 2. Use the drill template supplied to drill the holes for the fixings.
  • Page 12: Sample And Exhaust Tubing Calculations

    Diagram 8. Mechanical installation ATTACHING BRACKET TO SCREWS ON A WALL mounting bracket screws 5.3 Sample and exhaust tubing calculations The following tables show the flow rate, tubing length, transport time, and maximum pressure and vacuum at the inlet and exhaust points. Table 2.
  • Page 13: In-Line Filters

    5.4 In-line filters External filters must be used to protect the tubing from contamination. Use particulate filter part number 0780248 for normal gases and 1830-0055 for corrosive gases. Replace the filter every 3 months. Refer to the table below for specific gases. Table 4.
  • Page 14: Local Detector Option

    1830-0055 for corrosive gases. The area around the detector is then being monitored as opposed to a sample being drawn from a remote location. Diagram 9. Local gas detector option MIDAS-T-001 transmitter installed with in line particulate filter for local ambient monitoring mode...
  • Page 15: Electrical Installation

    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 ®...
  • Page 16 NOTE: EARTHING REQUIREMENTS If the MIDAS® unit metal chassis is not connected directly to a metal surface for earthing purposes, an additional earth wire will be required. Connect a 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.
  • Page 17: Electrical Connections

    Ethernet cable from a PoE source. In either case the 4-20 mA analog output can be used. This can be configured for sinking, sourcing or isolated operation. Below are some schematic diagrams of typical electrical connection configurations. Diagram 12. Example MIDAS Diagram 13. Example MIDAS ®...
  • Page 18: Refitting The Main Chassis

    Diagram 18. Generic example Diagram 19. Generic Example MIDAS ® MIDAS 3-wire sinking output sourcing 4-20 mA with PoE power ® Diagram 20. Generic example MIDAS ® isolated 4-20 mA output with PoE power 5.8 Refitting the Main Chassis The main chassis can be refitted to the mounting bracket assembly using the following steps.
  • Page 19: Installing The Sensor Cartridge

    5.9 Installing the Sensor Cartridge The MIDAS sensor cartridge is supplied separately and needs to be fitted to the detector’s main chassis. ® The following steps and diagrams detail the procedure for installing the sensor cartridge for the first time.
  • Page 20 Table 5. Sensor cartridge warm up times Maximum Sensor Sensor Warm-up Cartridge Cartridge Gas Name Time Family Part No. (minute) Ammonia MIDAS-S-NH3 Ammonia Hydrides MIDAS-S-ASH Arsine MIDAS-S-HYD Diborane, Germane MIDAS-S-PH3 Phosphine MIDAS-S-SHX Silane (20 ppm), Disilane MIDAS-S-SHL Silane (2 ppm)
  • Page 21: General Operation

    7 GENERAL OPERATION After applying power to the detector, the display will go through a start up test routine illuminating in sequence all the LEDs, icons and digits of the display. The display will show the message ‘WAIT’ and ‘LOAD’ as it checks for cartridge data.
  • Page 22: Resetting Alarms, Faults And Maintenance Faults

    Fault relay de-activated 7.1.1 Resetting Alarms, Faults and Maintenance Faults The alarm relay function of MIDAS can be set to latching (see set-up mode) so that when an alarm occurs ® the associated relay remains activated even if the gas reading has dropped below the alarm level. To reset the latched alarm relay press the ‘X’...
  • Page 23: Review Mode Menu Overview

    7.2.1 Review Mode Menu Overview The menu is simply navigated by using the ‘▲’ up and ‘▼’ down buttons to select the required menu, and then using the ‘✓’ accept button to enter that submenu and scroll through to view the settings. The ‘X’ cancel button can be used to exit the submenu and allow selection of a different submenu, or can be pressed again to exit to normal operating mode.
  • Page 24: Overview Of Set-Up, Calibration And Test Mode

    Failure to be able to retrieve your pass code may lead to delays in gaining access to all the protected functions in each MIDAS unit. If an incorrect code is entered the display ®...
  • Page 25 Table 8. Set-up menu overview. Set up ▲ ▲ ▲ ▲ ▲ ▲ Submenu ▼ ▼ ▼ ▼ ▼ ▼ Alarms Change gas Set level 1 Set alarm Set alarm Set alarm Press ▲ or ✓ ✓ ✓ ✓ ✓ ✓...
  • Page 26: Calibration Menu Overview ' Cal

    7.3.2 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 ‘▲’ up and ‘▼’ down buttons to select the required submenu and then using ‘✓’ accept button to enter that submenu.
  • Page 27: Test Menu Overview ' Test

    7.3.3 Test Menu Overview ‘ tEST’ The test menu is used to test the detector gas reading using bump test gas, and for simulation of alarm and fault display and output operation. The test menu also contains the detector Inhibit facility. Use the ‘▲’ up and ‘▼’ down buttons to select either bump test or alarm/fault test.
  • Page 28: Detailed Procedures For Navigating Review, Set-Up, Calibration And Test Mode Submenus

    8 DETAILED PROCEDURES FOR NAVIGATING REVIEW, SET-UP , CALIBRATION AND TEST MODE SUBMENUS The following sections provide step-by-step procedures for navigating all the modes and submenus. 8.1 Review Mode Review mode allows the settings of the detector to be reviewed safely without any changes being made. Review mode consists of 7 submenus as shown in the table below: Table 11.
  • Page 29: Review Alarms ' Alm

    8.1.2 Review Alarms ‘ ALm’ 1. Select the alarms ‘ Alm’ submenu and press ‘✓’ to accept. 2. The sensor cartridge ID (X) and the set gas ID code (Y) are displayed in the format (X – Y). (See section 8.2.2 for a list of sensor cartridge and gas ID codes).
  • Page 30: Review Detector Address ' Net

    Zellweger Analytics is not responsible for any costs associated with the recovery of the passcode in the event that the user has forgotten or cannot access their unique passcode. It is strongly advised that the user records all pass codes with the instrument serial number in a secure and separate location to the MIDAS unit. Delays in ®...
  • Page 31: Set-Up Menu ' Set

    8.2.1 Set-up Menu ‘ SEt’ The set-up menu allows the settings of the detector to be changed. The set-up menu consists of 6 submenus as shown in the table below. Table 12. Set-up mode submenus. Set-up Icon Changeable settings submenu Alarms Gas ID, Alarm 1 and alarm 2 configuration, set points, time delay, latching/non latching, energized/de-energized...
  • Page 32 ID and will not request a change gas confirmation. Table 13. Set-up mode submenus. Sensor cartridge Gas Name Range Sensor Gas ID Part No. cartridge ID MIDAS-S-NH3 Ammonia 0-100 ppm Not applicable MIDAS-S-ASH Arsine 0-0.2 ppm Not applicable MIDAS-S-HYD Diborane 0-0.4 ppm...
  • Page 33 Phosphorous 0-0.8 ppm Not applicable MIDAS-S-POC Oxychloride MIDAS-S-HAL Chlorine 0-2 ppm Fluorine 0-4 ppm MIDAS-S-BR2 Bromine 0-0.4 ppm Chlorine 0-0.4 ppm Dioxide Carbon 0-2% Vol Not applicable MIDAS-S-CO2 Dioxide MIDAS-S-COX Carbon 0-100ppm Not applicable Monoxide Hydrogen 0-1000 ppm Not applicable...
  • Page 34: Set Faults ' Flt

    8.2.3 Set Faults ‘ FLt’ The set-up menu allows the settings of the detector to be changed. The set-up menu consists of 6 submenus as shown in the table below. 1. Use the ‘▲’ up or ‘▼’ down buttons to select the set faults ‘ FLt’...
  • Page 35: Set Date And Time 'Time

    14. Press ‘X’ to return to set-up, calibration and test menu selection. 15. Press ‘X’ again to return to normal operation. NOTE: If the IP address is changed the new settings will not be implemented until the MIDAS unit is ®...
  • Page 36: Set Pass Code ' Pwd

    Zellweger Analytics is not liable for any costs associated with the recovery process nor for any inconvenience incurred while the user is unable to access protected settings. Please ensure secure records are kept for all pass codes implemented on MIDAS units.
  • Page 37: Span Calibration ' Span

    8.3.2 Span Calibration ‘ SPAn’ 1. Use the ‘▲’ up or ‘▼’ down buttons to select the span calibration ‘ SPAn’ submenu and press ‘✓’ to accept. 2. The span calibration icon starts flashing in order to tell the user to prepare to apply span gas. 3.
  • Page 38: Flow Calibration ' Flow

    8.3.3 Flow Calibration ‘ FLoW’ 1. Use the ‘▲’ up or ‘▼’ down buttons to select the flow calibration ‘ FLoW’ submenu and press ‘✓’ to accept. 2. The flow icon with the dot at the bottom starts flashing in order to tell the user that the unit is ready to read the zero flow offset.
  • Page 39: Test Menu ' Test

    8.4 Test Menu ‘ tEST’ The test menu is used to test the detector gas reading using bump test gas, and for simulation of alarm and fault display and output operation (relay, analog and digital). The test submenu also includes the detector inhibit facility.
  • Page 40: Inhibit State ' I Nh

    8.4.3 Inhibit State ‘ I nH’ 1. Use the ‘▲’ up or ‘▼’ down buttons to select the inhibit ‘ I nH’ submenu and press ‘✓’ to accept. 2. The display flashes ‘nonE’ indicating there is no inhibit currently set. 3.
  • Page 41: Routine Maintenance

    Note that testing or calibrating with the wrong (incorrect, out of date, non-traceable) calibration gases, calibration equipment, methods or operating conditions can actually damage the sensor cartridge’s lifetime and alter the calibration adversely. Only qualified calibration technicians should attempt to calibrate the MIDAS ®...
  • Page 42 Diagram 22. Removing detector cover Diagram 23. Removing sensor cartridge chassis sensor mi da REMOVING COVER Ga s Sen sor Car trid NIT ROG EN TRIF LUO RID NF 3 PN : MI DA SN : S-S -HF 02 34 Us e 45 66 by :...
  • Page 43: Pump Replacement

    9.2 PUMP REPLACEMENT The pump module has been designed to allow easy replacement. New pump modules are supplied with new springs, bracket and tubing pre-assembled for quick release / replacement Diagram 26. Location of pump module Pump module The following procedure should be followed carefully and only performed by suitably trained personnel. 1.
  • Page 44 6. Remove the 4 pump module screws. 7. Remove the two fixing clips and disconnect the tubes at the manifold.
  • Page 45 8. Slide the pump module out and disconnect the connector from the pcb. 9. Fit the new pump module following the steps above in reverse order.
  • Page 46: Re-Assembling The Detector

    9.3 Re Assembling the Detector 1. Align the PCB at the top rear of the main chassis with the connector located at the top of the mounting bracket assembly. 2. At the same time align the two tubes at the bottom rear of the main chassis with the two tubes located on the bottom of the mounting bracket assembly.
  • Page 47: Pyrolyzer Module Option

    Manifold ports New filter correct orientation 10 PYROLYZER MODULE OPTION The pyrolyzer module option is installed underneath the standard MIDAS ® gas detector. The air sample is drawn through the pyrolyzer to the sensor cartridge. The pyrolyzer converts Nitrogen Trifluoride (NF ) present in the air sample into Hydrogen Fluoride (HF) by means of pyrolysis.
  • Page 48: Fitting The Pyrolyzer Module

    10.1 Fitting the Pyrolyzer Module 1. Isolate the power to the detector. 2. Unscrew the captive thumbscrew located on the front panel. 3. Remove the cover by pulling it forwards off the main chassis. 4. Unscrew the two captive screws located at the bottom front of the chassis. 5.
  • Page 49: Detector

    6. Tighten the screws to secure the chassis to the mounting bracket assembly. 7. Fit sensor cartridge MIDAS-S-HFX into the sensor cartridge chamber. 8. Switch the power switch on the terminal module to the ‘on’ position. 9. Refit the detector’s cover by aligning the slots either side with the locating tabs on the mounting bracket assembly.
  • Page 50 LCD screen, e.g. due to flow problems caused by pump failure, or failure of the pyrolyzer unit, etc. Diagram 37. Pyrolyzer option flow diagram Pyrolyzer Option MIDAS Transmitter Flow Controller utilizes differential pressure over laminar flow element to monitor flow conditions.
  • Page 51: Analog Module

    11 ANALOG INPUT MODULE MIDAS can be fitted with an analog module (MIDAS-T-00A) that allows it to be used as a control ‘hub’ for other ® remotely connected 4-22 mA analog detection devices such as other gas detectors, flow sensor cartridges and other industrial monitoring apparatus.
  • Page 52: Re-Assembling The Midas ® Detector

    Diagram 39. Analog module connection. Rectangular access at bottom of bracket Mounting screws (x3)
  • Page 53: Trouble Shooting And Fault Diagnosis

    General trouble shooting guide and specific fault code table. Table 20. Fault code descriptions Fault code Description Condition Recovery Over range. A large concentration has Supply known clean air to the MIDAS ® and clear this fault. been detected. The ® MIDAS requires an independent confirmation that the gas hazard is gone.
  • Page 54: Reflex

    Communications requires knowledge of the IP address and netmask of both the MIDAS® and the PC. Unless the MIDAS® is connected to a large network with a DHCP server, the addresses must be set manually. To view or set the IP address of the MIDAS ®...
  • Page 55 Diagram 40 - IP Address setting in Windows XP Diagram 41 - Sample MIDAS web page ®...
  • Page 56: Typical Installation Topologies

    15 TYPICAL INSTALLATION TOPOLOGIES MIDAS has very flexible installation options to allow the user to select the one most suitable for their specific ® application. 15.1 Conventional Installation...
  • Page 57: Modbus/Tcp Installation

    15.2 Modbus/TCP Installation 15.3 Power over Ethernet (POE) Installation...
  • Page 58: Ordering Information

    16 ORDERING INFORMATION This section contains details of how to order complete MIDAS detector and sensor cartridge kits, separate ® transmitters and sensor cartridges as well as spares and accessories. 16.1 MIDAS Transmitter ® Description Part no. MIDAS transmitter. Complete with manual and quick start guide. (1) PG16 gland MIDAS-T-001 ®...
  • Page 59: Midas

    16.4 MIDAS Plug in Sensor Cartridges (Standard Warranty) ® The plug in sensor cartridges for the MIDAS Gas Transmitter are sold separately with a 1 year (12 month) ® standard warranty. For extended warranty sensor cartridges see the section 16.5. Some sensor cartridges can be configured to detect more than 1 target gas.
  • Page 60: Midas

    16.5 MIDAS Plug in Sensor Cartridges (Extended Warranty) ® The plug in sensor cartridges for the MIDAS Gas Transmitter are available with an extended 2 year (24 month) ® warranty. Some sensor cartridges can be configured to detect more than 1 target gas. Details of the gases, ranges and part numbers for the extended warranty sensor cartridges available are listed below.
  • Page 61: Midas ® Complete Gas Detector Kits

    Each sensor cartridge is supplied with an extended 2 year warranty. Sensor cartridge and gas detector are packaged separately for ease of installation. Note that to detect NF separate pyrolyzer module (MIDAS-T-00P) must also be ordered. Complete detector kit and sensor cartridge description Kit part no.
  • Page 62: General Specifications

    17 General Specifications Physical Size (unit with Sensor cartridge) 120 mm(H) x 63 mm(W) x 145 mm (D) (4.72 x 2.48 x 5.71 in) Weight (unit with Sensor cartridge) 0.8 kg (1.76 lb) Pyrolyzer Dimensions Size 70 mm (H) x 63 mm (W) x 80 mm (D) (2.75 x 2.48 x 3.15 in) Weight 0.41 kg (0.9 lb) Power Requirements:...
  • Page 63: Calibration And Bump Testing

    All MIDAS sensor cartridges are pre-calibrated by Zellweger Analytics using traceable gas standards and ® approved calibration methods to a proven ISO 9000 quality controlled procedure. The MIDAS sensor cartridge ® design is very robust and resistant to long term drift; in fact in a normal operating environment it is possible...
  • Page 64 The following table indicates the recommended calibration or bump test gas for the MIDAS sensor cartridges: ® Please consult with your Zellweger Analytics Service Representative for approved methods and materials before commencing calibrations and bump tests. Gas Name Chemical Range...
  • Page 65 Applying test gas may cause alarm, fault or maintenance fault indications on the 4-20 mA loop, relays or digital outputs. Before starting a test, ensure that suitable steps have been taken to prevent these indications from triggering unwanted actions. The MIDAS ®...
  • Page 66 20.9%. As an extra check, the sensor can be breathed on or temporarily blocked. In either case the reading should decrease. 3. The flow rate is regulated by the Midas unit. All test gases must be in a balance of air, not Nitrogen.
  • Page 67: Warranty Statement

    Finishing Wait for the gas reading to return to normal levels. This may take some time, especially if concentrations above the recommended levels have been used or if the test gas has been applied for an extended period of time. Ensure that any latched faults or alarms that have been generated by the testing have been cleared.
  • Page 68 Note that the MIDAS sensor cartridge stores an electronic history of each individual sensor cartridge’s ®...
  • Page 69: Software Menu State Charts

    20 SOFTWARE MENU STATE CHARTS Midas Simulator State Chart 20.1 Top Level Top Level Accept Review (With Incorrect Passcode) Mode Cancel Down (1 Sec - Accept With Passcode) (With Incorrect Passcode) Down Cancel Up (1 Sec - With Passcode) Accept...
  • Page 70: Review Mode

    20.2 Review Mode Midas Simulator State Chart Review Review - Event Log Review - Network Review - Date/Time Accept Accept Accept Cancel Cancel Cancel Function Function Function Monitoring Selection - Selection - Selection - Status Show Show Show Down Down...
  • Page 71: Review Software Info, Alarm, Fault And Gas Calibration

    Midas Simulator State Chart 20.3 Review Software Info, Alarm, Fault and Gas Calibration Review - Software Info, Alarm, Fault & Gas Calibration Function Selection - Function Function Show Selection - Selection - Software Show Alarm Show Fault Accept Accept Info...
  • Page 72: Review Date/Time And Network

    Midas Simulator State Chart Review - Date/Time & Network 20.4 Review Date/Time and Network Function Function Selection - Selection - Show Show Date/Time Network Accept Accept Accept Accept Show Show Show Show IP Address Subnet Time Year Auto / 4th Digit...
  • Page 73: Review Event Log

    Midas Simulator State Chart Review - Event Log 20.5 Review Event Log Function Selection - Show Event Log Accept Accept (Go To (After Last First Event) Event) Show Show Event Month Event Data and Date Accept (Before Last Event - Go To...
  • Page 74: Set-Up Mode

    Midas Simulator State Chart 20.6 Set-up Mode Setup Setup - Passcode Setup - Network Setup - Date/Time Accept Accept Accept Cancel Cancel Function Function Function Mode Cancel Selection - Selection - Selection - Selection - Down Down Setup Passcode Network...
  • Page 75: Set-Up Alarm, Fault And Gas Calibration

    Midas Simulator State Chart 20.7 Set-up Alarm, Fault and Gas Calibration Setup - Alarm, Fault & Gas Calibration Function Cancel Cancel Selection - Function Set Alarm Selection - Accept Accept Set Fault Accept Set Alarm Relay Off Set Gas Cancel...
  • Page 76: Set-Up Date/Time And Network

    Midas Simulator State Chart 20.8 Set-up Date/Time and Network Setup - Date/Time & Network Accept (Auto) Function Function Selection - Selection - Date/Time Network Cancel Cancel Cancel Cancel Accept Accept Accept Accept Set Date Set Subnet IP Address Set Minutes...
  • Page 77: Set-Up Pass Code

    Midas Simulator State Chart 20.9 Set-up Pass Code Setup - Passcode Function Selection - Passcode Cancel Cancel Accept Accept Repeat Passcode Passcode 4th Digit 1st Digit Accept Cancel Cancel Accept Repeat Passcode Passcode 3rd Digit 2nd Digit Accept Accept Cancel...
  • Page 78: Calibration Mode

    Midas Simulator State Chart Calibration 20.10 Calibration Mode Calibration - 4-20 mA Calibration - Flow Calibration Calibration Accept Accept Cancel Function Function Mode Cancel Selection - Selection - Down Selection - 4-20 mA Flow Calibration Calibration Calibration Cancel Accept Down...
  • Page 79: Calibration Gas Zero And Span

    Midas Simulator State Chart 20.11 Calibration Gas Zero and Span Calibration - Gas Zero & Span Calibration Calibration Status Indicators In Gas Function Bottle Icon (based on Zero Cal Selection - Required last 5 seconds) Accept Zero Gas Message Calibration...
  • Page 80: Calibration - Flow Calibration

    Midas Simulator State Chart 20.12 Calibration - Flow Calibration Calibration - Flow Calibration Function Selection - Zero Gas After A/D Readings Accept Calibration are completed Cancel Cancel Read A/D For Prepare For Setpoint 2 Calibration Accept Accept Cancel Cancel Enter...
  • Page 81: Calibration - 4-20 Ma

    Midas Simulator State Chart Calibration - 4-20 mA Calibration 20.13 Calibration - 4-20 mA Function Selection - 4-20 mA Calibration Accept Cancel Adjust 4 mA Accept Cancel Accept Adjust 20 mA Additional Button Functions Calibration Accept (Check) Saves new calibration values after last adjustment.
  • Page 82: Test Mode

    20.14 Test Mode Midas Simulator State Chart Test Mode Selection - Test Cancel Cancel Accept Down Function Function Function Down Selection - Down Selection - Selection - Alarm/Fault Bump Test Inhibit Simulation Accept Accept Accept Test - Alarm/Fault Test - Bump Test...
  • Page 83: Test Bump, Alarm/Fault Simulation

    20.15 Test Bump, Alarm/Fault Simulation Midas Simulator State Chart Test - Bump Test & Alarm/Fault Simulation Function Function Selection - Selection - Alarm/Fault Bump Test Cancel Simulation Cancel Cancel Accept Cancel Accept Down Request Request Request Down Down Bump Alarm 1...
  • Page 84: Test Inhibit

    Midas Simulator State Chart Test - Inhibit 20.16 Test Inhibit Function Monitoring Selection - Status Accept (if entered Bump Test directly from Monitoring Status Cancel (if entered and Inhibit Level from Test Menu) set to None) Accept (if entered from Test Menu)
  • Page 85: Contact Details

    © 2004 Zellweger Analytics Issue 1 .1 2/2005 MIDAS-A-001 21 Contact Details Contact your local Zellweger Analytics representative or visit Zellweger Analytics’ web site at: http://www.zelana.com Specifications subject to change without notification. MDA Scientific and MIDAS are registered trademarks of Zellweger Analytics, Inc.

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