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Instruction Manual
for the
MAC155L
&
MAC155H
Moisture Analyzer
©Copyright MAC Instruments 2005. All Rights Reserved.
MAC155 Rev. 12

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Summary of Contents for MAC MAC155L

  • Page 1 Instruction Manual for the MAC155L & MAC155H Moisture Analyzer ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12...
  • Page 3 Instruction Manual for the MAC155L & MAC155H Moisture Analyzer ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12...
  • Page 5: Table Of Contents

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Table of Contents Figures and Tables..................vi Figures ............................ vi Tables ............................viii OVERVIEW ....................... 1 GENERAL ..........................1 THEORY OF OPERATION...................... 2 SENSOR CALIBRATOR......................3 WATER TANK ........................3 CONDENSER........................4 CALIBRATION VALVE .....................
  • Page 6 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. WATER FILLING / FLUSHING KIT..................24 FILLING WATER TANK ......................25 WATER TANK FLUSHING ....................26 START UP ..........................28 STATUS INDICATORS......................29 AUTOMATIC CALIBRATION CHECK ...................31 MAINTENANCE ..................... 33 FILTER / EXTENSION TUBE ....................33 INSTALLING THE FILTER .....................33...
  • Page 7 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 MODBUS RTU BAUD RATE SET UP (Option) ............. 61 DIAGNOSTIC MENU ......................62 FORCED OUTPUT SIGNAL ..................62 MANUAL CAL PUMP OPERATION................63 FORCED FILTER BLOW BACK ..................63 MANUAL CASE HTR OPERATION ................64 FORCE COND TEMP 100°....................
  • Page 8 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. USERNAME AND PASSWORD SET-UP................84 AUTOMATIC CALCHECK TIME SET-UP ................84 MODBUS RTU CONTROLLER OPTION ............86 Overview ..........................86 Modbus Setup ........................86 Modbus Coil & Register Data....................86 Controller Inputs ......................86 Controller Outputs ......................87...
  • Page 9 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 ............................. 127 Pg v...
  • Page 10: Figures And Tables

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Figures and Tables Figures Figure 1 – MAC155 Probe Water Tank ..............3 Figure 2 – Extension Tube cut to 12 inch/ 30cm ..........5 Figure 3 – MAC155 Probe Compressed Air Input ..........7 Figure 4 –...
  • Page 11 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Figure 30 – General Menu Display ..............55 Figure 31 – Time Set Menu ................56 Figure 32 – Auto CalCheck Time Set Menu ............57 Figure 33 – Display Brightness Selection Menu ..........57 Figure 34 –...
  • Page 12 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Figure 63 - MAC155 Time Setup Menu.............. 83 Figure 64 - MAC155 Time Setup Menu.............. 83 Figure 65 - MAC155 Time Setup Menu.............. 84 Figure 66 - MAC155 Time Setup Menu.............. 85 Figure 67 - Modbus 8bit Input Word ..............
  • Page 13 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Pg ix...
  • Page 14 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. SYMBOL DEFINITIONS Risk of Dangerous Condition Documentation needs to be referenced to explain danger in detail. Hot Surface Contact with surface could cause burns. Risk of electric shock High voltage is present which could cause electric shock.
  • Page 15 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Pg xi...
  • Page 17: Overview

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 OVERVIEW GENERAL Always maintain AC power to the MAC155 Probe when the probe is in place in the instrument port and the monitored equipment is operating, (generating typical moisture). There are no operator serviceable parts inside The MAC155 Probe or Controller.
  • Page 18: Theory Of Operation

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. The accuracy of the MAC155 is ± 1% of full scale over 20% to 100% of the full scale range. The accuracy is reduced to some extent below 20% of full scale.
  • Page 19: Sensor Calibrator

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 SENSOR CALIBRATOR The MAC155 Probe contains an internal calibrator that generates a reference gas of 40% and 80% of the selected full scale range (Refer to the MAC155 specification sheet). The reference gas can be used to verify the calibration or it can be used to calibrate the MAC155 Probe at these two points.
  • Page 20: Condenser

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. CONDENSER The gas stream from the water tank is fed to the condenser. The condenser causes moisture from the gas stream to condense until the gas stream leaving the condenser is at the required percent of moisture by volume level.
  • Page 21: Probe Options

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 PROBE OPTIONS There are several options available with the MAC155 Probe. Each option is explained in detail in the following sections. EXTENSION TUBE The optional extension tube is 3 foot/0.9 meter in length and can be affixed to the end of the MAC155 Probe using standard tube fittings.
  • Page 22: Case Cool

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. CASE COOL The case cool option uses the same compressed air source as the blow back option. A temperature sensor inside the MAC155 Probe operates a solenoid valve that releases air into the case of the probe. The hot air inside the case is expelled through a vent to maintain the internal temperature at a safe level.
  • Page 23: Figure 3 - Mac155 Probe Compressed Air Input

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Air Input Fitting Figure 3 – MAC155 Probe Compressed Air Input It is required to provide clean, dry, instrument air for the compressed air input. Failure to do so may result in damage to the moisture sensor which is not covered under the warranty.
  • Page 24 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 8...
  • Page 25: Installation

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 INSTALLATION Installation of the MAC155 Probe is relatively simple. It is mechanically mounted to the instrumentation port using a mounting adapter. TheMAC155 Probe must be mounted in a horizontal position (-0°, +15°), refer to Figure 4.
  • Page 26: Figure 5 - Typical Mac155 Probe Installation

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Figure 5 – Typical MAC155 Probe Installation Pg 10...
  • Page 27: Mounting Adapter

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 MOUNTING ADAPTER The mounting adapter consists of a standard ANSI flange (150 psi stainless steel) with a 2” (76.2mm) stainless steel ferrule welded to it. Refer to the mounting adapter drawing in the drawing section of this manual. Standard mounting adapters are available for pipe sizes of 2”...
  • Page 28: Wall Mount Remote Sampling Probe (Option)

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. WALL MOUNT REMOTE SAMPLING PROBE (OPTION) If the Wall Mount Remote Sampling Probe option is ordered, The Probe will be mounted on a wall or panel and the sample extracted down a heated line to the probe.
  • Page 29: Figure 7 - Mac155 Probe Connectors

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 wiring must be run in a separate conduit or wire way from each other and all other wiring to provide immunity from interference. Failure to meet this requirement may result in unpredictable readings from the MAC155 Probe.
  • Page 30: Table 1 - Dc Power Conductor Size Vs. Length

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Maximum length of Wires-One Wire Size Nom. Size (AWG) 150 Feet 4 mm 240 Feet 6 mm 400 Feet 10 mm 600 Feet 16 mm 1000 Feet 25 mm Table 1 – DC Power Conductor Size vs. Length...
  • Page 31: Probe Junction Box

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 PROBE JUNCTION BOX A small user supplied junction box with terminal strips is typically used to connect the weather proof MAC155 probe cables to user supplied wires that run back to the MAC155 controller.
  • Page 32: Mac155 Controller Fiber Optic Converter Junction Box Option

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Either of the following options can be included: 1) +/- 15V power supplies to power the probe. 2) RS485 to fiber optic converter (Requires user supplied 62.5/125u multimode duplex fiber optic cable with ST connectors). Note that the MAC155 controller fiber optic converter junction box option is also required for fiber optic communication between the probe and controller.
  • Page 33: Filter Blow Back Air Supply - Option

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Make sure that the filter is in place before inserting the unit into the mounting adapter. Refer to the section on “Filter / Extension tube” Operating the MAC155 Probe without a filter can cause severe damage to the unit which is not covered under the warranty.
  • Page 34: Controller Wiring

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. CONTROLLER WIRING Figure 9 – Rear Connections of MAC155 Controller Figure 10 – Controller I/O Pin Designations PROBE TO CONTROLLER WIRING Using the supplied cables connect the controller to the probe. The rear of the controller provides the appropriate connections.
  • Page 35: Current Loop Wiring

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 A grounding stud is provided on the back of the controller, this stud must be connected to a suitable earth ground using at #12AWG / 4mm or larger grounding conductor.
  • Page 36: Maintenance Mode Contact

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. With the 0–5V setup, 10mA of current will equal 2.5V across the resistor leads. Refer Figure 13 – MAC155 0–5V Operation In order to maintain the advantages of the current loop output signal, the 250Ω...
  • Page 37: Local Alarm Contacts

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 LOCAL ALARM CONTACTS A solid state relay will to provide a contact closure during an alarm event. Reliability is maintained with the use of a solid state relay since there are no moving parts or contacts to pit which guarantee a reliable circuit path in the event of an alarm condition.
  • Page 39: Operation

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 OPERATION GENERAL The MAC155 requires no operator attention after the initial startup has been completed. If the MAC155 is left in place without power, moisture from the process that is normally monitored will diffuse into the MAC155 and condense. This can cause problems when power is later applied to the MAC155.
  • Page 40: Water Filling / Flushing Kit

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Figure 14 – Water Level Sensor Location The water level is monitored by a water level sensor. If the water level falls below a minimum level, the “Low Water” alarm will be activated.
  • Page 41: Filling Water Tank

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 should be stored in the plastic container that it was packed in. It is important to keep dirt or contaminates out of the water tank. Figure 15 – Water Filling / Flushing Kit FILLING WATER TANK To fill the water tank refer to Figure 16 –...
  • Page 42: Water Tank Flushing

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Figure 16 – Filling Water Tank WATER TANK FLUSHING There is normally some water in the tank when the low level is detected. To insure trouble free operation, drain the remaining water from the tank. Draining is...
  • Page 43: Figure 17- Draining Water Tank

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Siphoning Pump Figure 17– Draining Water Tank Pg 27...
  • Page 44: Start Up

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. The siphon pump and the water catch container should be held below the bottom of the MAC155 Probe. To complete the flushing operation, fill the tank with distilled water, and then drain it again.
  • Page 45: Status Indicators

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 prevent condensation; therefore the calibration equipment must also reach operating temperature. When all assemblies have reached their proper operating temperatures, the calibration pump will stop running, and there will be no status messages displayed on the screen.
  • Page 46: Table 2 - Main Board Status Indicators

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Table 2 – Main Board Status Indicators RUN MODE LED LABEL FUNCTION STATUS Power to calibration pump status. “ON” indicates power on to pump. CAL PUMP “OFF” indicates pump power off.
  • Page 47: Automatic Calibration Check

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Figure 20 – ±15V Power Supply Status Indicators Figure 21 – +5V Power Supply Status Indicator The +5V, +15V and -15V LED’s should be on anytime that AC power is applied to the MAC155.
  • Page 48 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Notes: Pg 32...
  • Page 49: Maintenance

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 MAINTENANCE Before performing any maintenance procedure, study the manual until the procedure is understood. If there is any confusion or doubt, contact the factory for further assistance. Only trained personnel familiar with this type of equipment and the hazards involved should attempt maintenance.
  • Page 50 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Make sure that the filter is in place before inserting the unit into the mounting adapter. Operating the MAC155 Probe without a filter can cause severe damage to the unit which is not covered under the warranty.
  • Page 51: Figure 22 - Mac155 Probe Filter Parts

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 If dust or particles are blown off the filter element using compressed air, a dust cloud will form. Eye protection should be worn and care should be taken not to breathe in the dust.
  • Page 52: Water Tank

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. WATER TANK Before servicing the water tank with the MAC155 Probe in place, turn off the power and remove the power cable from the unit to eliminate any possible contact with hazardous voltage.
  • Page 53: Sampling Pump

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Use ordinary distilled water to fill the tank. Do not use de-ionized water 6. Tighten the mounting clamp, close the cover, and turn power on to the instrument. SAMPLING PUMP The purpose of the sampling pump is to circulate a sample of the atmosphere that is being monitored through the sensor.
  • Page 54: Calibration Pump

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. If the pump cannot maintain a vacuum of at least 0.5 psi / 3.4 kP it should be rebuilt or replaced. The best course of action is to keep a spare sampling pump on hand. A defective pump can then be replaced immediately.
  • Page 55: Peristaltic Pump Tubing Replacement

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 PERISTALTIC PUMP TUBING REPLACEMENT Figure 24 – Peristaltic Pump stand-in Tubing 6. Remove the two screws holding the plastic head assembly, and remove the assembly from the motor. Remove Screws...
  • Page 56: Figure 26 - Peristaltic Pump Housing

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. 7. Disassemble the plastic housing assembly (no tools required), and remove the old tubing by pulling the white cam wheel and tubing out of the plastic housing. Figure 26 – Peristaltic Pump Housing...
  • Page 57 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 9. Reassemble the housing. Insert the two screws through the holes in the housing and place the two black rubber washers over the ends of the screws to hold them in place.
  • Page 58 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 42...
  • Page 59: Trouble Shooting

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 TROUBLE SHOOTING Before performing any Troubleshooting procedure, study the manual until the procedure is understood. If there is any confusion or doubt, contact the factory for further assistance. Only trained personnel familiar with this type of equipment and the hazards involved should attempt maintenance.
  • Page 60 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. The mechanics of the MAC155 Probe are primarily devoted to pumping a sample gas or a reference gas to the moisture sensor. To locate problems with this type of equipment requires the use of a sensitive differential pressure gauge or an electronic manometer.
  • Page 61: Mechanical Tests

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 MECHANICAL TESTS The following tests are numbered so that they can be easily referred to in the troubleshooting flow charts. Mechanical tests are indicated by the letter “M” prefix. M1 Test of sample gas flow path.
  • Page 62: M2 -Test Of Reference Gas Flow Path

    4. If the barrel intake is blocked, it is recommended that the MAC155 Probe be returned to Mac Instruments Corp. for service. This is because the barrel assembly will have to be removed and disassembled in order to be cleaned, and this can only be done at the factory.
  • Page 63: M3 Sampling Pump Test

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 The calibration gas flow path and the water tank can be checked for leaks in the following way: 1. Disconnect the tubing that goes between the water tank and the calibration pump, at the pump end.
  • Page 64: M4 Calibration Pump Test

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. If the pump cannot maintain a vacuum of at least 0.5 psi / 3.4 kP, the black pump tubing or the pump should be replaced. M4 Calibration pump test The calibration pump can be tested in the same way as the sampling pump.
  • Page 65: Figure 28 - Ac Input Fuse Location

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Figure 28 – AC Input Fuse Location Other fuses located on the back of the controller are for the 120V AC power and the +/- 15V DC power feeding the probe.
  • Page 66: Power Supplies

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. DANGER! High Voltage is present inside the controller. DANGER! High Voltage is present on the power supply heat sinks. Power Supplies There are three power supplies in the controller, a 5V supply and two 15V...
  • Page 67: Electrical Tests - Probe

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 The Loop Failure LED located near the +15V input connector indicates an open loop condition on the 4–20mA loop output. Alarm LED The Alarm LED provides visual indication of the Alarm Relay status. If the LED is illuminated the relay is energized.
  • Page 68: +5V Digital Power

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. If the wire has been sized properly, the +/- 15V should measure between 13.5V and 15V. +5V Digital Power There is a +5V power supply on the main board for digital devices in the probe.
  • Page 69 The LED will also remain “On” until this condition is reached. Tank Heater The “Tank HTR” LED is on when power is applied to the tank heater. On MAC155L probes this LED will always be on. On MAC155H probes this LED is on when 120V AC power is applied to the tank heater and off when the tank is at operation temperature.
  • Page 70 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 54...
  • Page 71: Controller Menu Navigation

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 CONTROLLER MENU NAVIGATION GENERAL MENU OPERATION The MAC155 can be configured through the usage of a structured menu system. Four push buttons on the right side of the display allow the user to respond to messages displayed on the controller’s display.
  • Page 72: Setup Menu

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. SETUP MENU TIME SET This menu sets the real time clock to the desired time in a 24 hour time format. Figure 31 – Time Set Menu Setting the Minutes Pressing the White pushbutton will increment the minutes of the clock.
  • Page 73: Set Auto Calcheck Time

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 SET AUTO CALCHECK TIME This menu sets the time of day the MAC155 will perform a calibration check. The Auto CalCheck will be performed only once per 24hr time period. Set the Auto CalCheck Time using the same method as described in the Time Set Menu.
  • Page 74: Analog Output Range Selection

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. ANALOG OUTPUT RANGE SELECTION Figure 34 – Analog Output Range Selection Menu The menu provides two different current loop scales. Scale 1 4-20mA Scale 2 0-20mA The default level is 4 – 20mA...
  • Page 75: Maintenance Relay Set Up

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 * Please note that while the range selections do not start at 0%, the mA output loop begins at 0% and ends at the listed upper limit of the range. The instrument is not very accurate below the instruments listed lower range limit.
  • Page 76: Modbus Rtu Address Set Up (Option)

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. MODBUS RTU ADDRESS SET UP (Option) Figure 38 - MODBUS RTU Address setup This menu item is for setting the MODBUS RTU slave address for the MAC155. After pressing enter the following screen will appear.
  • Page 77: Modbus Rtu Baud Rate Set Up (Option)

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 MODBUS RTU BAUD RATE SET UP (Option) Figure 41 - MODBUS RTU Baud rate setup This menu item is used to set the desired baud rate for MODBUS RTU communications. Pressing ENTER will bring up the following display.
  • Page 78: Diagnostic Menu

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. DIAGNOSTIC MENU FORCED OUTPUT SIGNAL The moisture output signal of the MAC155 Probe can be forced to the following values: OUTPUT CURRENT % of Full Scale Output 4–20mA Output 0–20mA Output...
  • Page 79: Manual Cal Pump Operation

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 The moisture output signal will remain at the selected value until the diagnostic menu is exited and the normal display is indicating an actual moisture reading. Pressing the “NEXT” pushbutton will select the next menu option. The moisture output will remain at the previously set value until the enable button is pressed or until the diagnostic menu is exited.
  • Page 80: Manual Case Htr Operation

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. If the MAC155 Probe is equipped with the filter blow back option, the blow back air solenoid will be energized if the “Enable” pushbutton is pressed. The blow back air solenoid will remain “ON” until the “Disable” button is depressed.
  • Page 81: Force Cond Temp 130

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 This menu option forces the condenser to 100° F. A number will appear below the first line when enabled, (Figure 47 – Force Cond Temp to 100° Menu indicates a forced condition enabled). This additional number represents the actual temperature of the condenser and can be used to verify proper operation of the condenser.
  • Page 82: Maintenance Menu

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. MAINTENANCE MENU MANUAL CALIBRATION MODE Figure 49 – Force Probe into Calibration Menu This mode causes the calibrator section of the MAC155 Probe to generate a calibration gas stream of 40% of full scale moisture by volume (MBV) for a period of 12 minutes.
  • Page 83: Manual Calibration Check Mode

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 MANUAL CALIBRATION CHECK MODE Figure 50 – Force Probe to Verify Calibration This mode causes the calibrator section of the MAC155 Probe to generate a calibration gas stream of 40% of full scale for a period of 11 minutes, then generate a calibration gas stream of 80% of full scale for a period of 11 minutes.
  • Page 84: Plc Interface Controller Option

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. PLC INTERFACE CONTROLLER OPTION Figure 52 - PLC Interface The PLC interface is a DIN rail mountable module that communicates with the controller through the RS-485 port on the back of the controller. The PLC interface can be mounted close to the users PLC or data logger so that only a shielded, twisted pair must be run to the MAC155 controller.
  • Page 85: Plc Interface Setup

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 PLC INTERFACE SETUP To use the PLC Interface it must be enabled in the SETUP menu of the MAC155 Controller. If Disable is displayed in the PLC INTERFACE screen of the SETUP menu, then the PLC interface is already enabled.
  • Page 86 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. ALARM OUTPUT If the probe generates a “General Alarm” Alarm a dry relay contact will close and the RED “General Alarm” LED will illuminate confirming the activation of the relay. This relay output will be active any time the Local Alarm Relay is active.
  • Page 87: Plc Interface Inputs

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 PLC INTERFACE INPUTS CAL CHECK Momentarily applying 24VDC to this input will place the MAC155 into a calibration check mode. Further information on the calibration check mode is provided in another section of this manual. The input signal should be applied for a minimum of 10 seconds to ensure the PLC interface has communicated the request to the controller.
  • Page 88: Ethernet Controller Option

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. ETHERNET CONTROLLER OPTION The Ethernet option allows the user to monitor the MAC155’s status over a network connection. The user can also initiate the various MAC155 modes of operation as well as change the controllers setup from a networked computer.
  • Page 89: Figure 53 - Initial Login Address

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Figure 53 - Initial Login Address After pressing enter you should be greeted with a pop-up login box. The default username MAC155, and password MAC155 need to be entered to proceed to the normal operation web page.
  • Page 90: Normal Operation Screen

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. NORMAL OPERATION SCREEN Figure 55 - Mac155 Normal Operation Screen Upon a successful login the above web page should be visible. The first area that may need attention is the MAC155 Time. If the time was not set using the controller’s menu system it can be set at this time.
  • Page 91: Time Set-Up

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 TIME SET-UP Figure 56 - MAC155 Time Setup Menu Press the MAC155 Time Set button will present the Change MAC155 Time web page. The current time and date will be visible. Note any discrepancies between the actual time and the MAC155 time.
  • Page 92: Calibrate Operation Screen

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. CALIBRATE OPERATION SCREEN Figure 57 - MAC155 Time Setup Menu The controller can be placed into a self-calibration mode. Click on the Calibrate button on the web page to enable the self-calibration mode. The page will update and the mode text box will now show “Calibrate”...
  • Page 93: Calcheck Operation Screen

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 If the mode is inadvertently entered the procedure can be canceled by pressing the “EXIT Mode” button. It is recommended doing this within the first few minutes of the calibration cycle. Indication of the probe exiting this mode either manually or at the end of the uninterrupted cycle will be confirmed when refreshing the page and viewing the Mode text box.
  • Page 94: In Maintenance Operation Screen

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. few minutes of the calibration cycle. Indication of the probe exiting this mode either manually or at the end of the uninterrupted cycle will be confirmed when refreshing the page and viewing the Mode text box. Upon completion of the calibration mode “Normal”...
  • Page 95: General Configuration Menu

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 GENERAL CONFIGURATION MENU Clicking the Configuration Menu button from the main menu will load the menu shown below. This menu provides three additional pages that effects the alarm reporting and operation of the MAC155.
  • Page 96: Email To

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Figure 61 - Alarm Email Setup Menu Email To: Enter the desired email address that you would like to receive any alarm messages generated by the MAC155. Email From: This field is the desired email address that will be placed in the "Email From"...
  • Page 97: Email Server

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 describes which unit is in an alarm state, in this case #1. Location of unit #1 and also the fact there is an alarm condition. Email Server: This field contains the outgoing email server’s domain name. You must enter a valid email server domain name.
  • Page 98: Mac155 Probe Moisture Scale Selection

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 PROBE MOISTURE SCALE SELECTION This menu provides the option of changing the scale of the probe. The model of the probe MAC155-H or MAC155-L determines which scales will be available in the drop down menu.
  • Page 99: Network Address Configuration

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Figure 63 - MAC155 Time Setup Menu NETWORK ADDRESS CONFIGURATION This menu changes the default IP address of the MAC155 to an IP address that is compatible with your network. Initial connection to the MAC155 using the default IP address of 192.168.0.1.
  • Page 100: Username And Password Set-Up

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. USERNAME AND PASSWORD SET-UP The MAC155 Ethernet interface is password protected. The default username and password is MAC155. This menu will allow you to change the password and username to one of your choosing to prevent unauthorized access to the MAC155 status and configuration pages.
  • Page 101: Figure 66 - Mac155 Time Setup Menu

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Figure 66 - MAC155 Time Setup Menu Pg 85...
  • Page 102: Modbus Rtu Controller Option

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. MODBUS RTU CONTROLLER OPTION Overview Modbus Remote Terminal Unit (RTU) protocol provides a common data exchange format for connecting external sensors and controls to a master control device. This serial communication format allows field devices to act as a slave device on a data link that is normally shared with other slave devices that employ the Modbus RTU protocol.
  • Page 103: Controller Outputs

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Modbus Input - Address Locations 7 6 5 4 3 2 1 0 = Address Location (Coil 1-8) 0x01 = 0 0 0 0 0 0 0 1 = Cancel...
  • Page 104: Drawings

    MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Drawings Mounting Outline Pg 88...
  • Page 105 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Pg 89...
  • Page 107: Typical Installation

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Typical Installation Pg 91...
  • Page 108 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 92...
  • Page 109: Mounting Adapters

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Mounting Adapters Pg 93...
  • Page 110 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 94...
  • Page 111: Wall Mount Remote Sampling Probe Outline

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Wall Mount Remote Sampling Probe Outline Pg 95...
  • Page 112 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 96...
  • Page 113: Wall Mount Remote Sampling Probe Mounting Hole Layout

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Wall Mount Remote Sampling Probe Mounting Hole Layout Pg 97...
  • Page 114 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 98...
  • Page 115: Probe Assembly

    ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Rev. 12 Probe Assembly Sensor Head Fitting CAL SOL Valve Condenser Fill Port Blow Back Sol Valve Main Board CAL Pump Water Tank Sample Pump Water Level Switch Case Heater Pg 99...
  • Page 116 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 100...
  • Page 117: Controller Outline

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  • Page 118 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 102...
  • Page 119: Controller Assembly 120V

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  • Page 121: Probe Main Board Layout

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  • Page 123: Controller Main Board Layout

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  • Page 125: Plc Interface Wiring Diagram

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  • Page 127: Plc Interface Wiring Diagram (Continued)

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  • Page 129: Probe To Controller Wiring

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  • Page 131: Probe To Controller Wiring (230V)

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  • Page 133: Probe To Controller Wiring (Remote Probe Power)

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  • Page 135: Probe To Controller Wiring (With Fiber Optic Communications)

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  • Page 137 ©Copyright MAC Instruments 2005. All Rights Reserved. MAC155 Probe Probe to Controller Wiring (230V With Fiber Optic Communications) MAC155 Rev. 8 Pg 121...
  • Page 138 MAC155 Rev. 12 ©Copyright MAC Instruments 2005. All Rights Reserved. Pg 122...
  • Page 139: Probe To Controller Wiring (230V With Remote Cd Power)

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  • Page 141: Probe Junction Box Outline Drawing

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  • Page 143: Controller Fiber Optic Converter Outline

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