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ENMET MedAir 2200 Operation And Maintenance Manual

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ENMET
680 Fairfield Court
Ann Arbor, MI 48108
734.761.1270 Fax 734.761.3220
www.enmet.com
MedAir 2200
Operation and Maintenance Manual

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Summary of Contents for ENMET MedAir 2200

  • Page 1 ENMET 680 Fairfield Court Ann Arbor, MI 48108 734.761.1270 Fax 734.761.3220 www.enmet.com MedAir 2200 Operation and Maintenance Manual...
  • Page 2 ECHNICAL ATA AND PECIFICATIONS 7.0 R ..................................31 EPLACEMENT UMBERS 7.1 ENMET part numbers for sensors and replacement parts: ..............................31 7.2 ENMET part numbers for Calibration equipment: ................................31 ..................................34 A: CO C PPENDIX HARACTERISTICS ................................35 B: G...
  • Page 3 MedAir ENMET List of Figures Figure 1: External Features of the MedAir 2200 .............................. 5 Figure 1A: Sample Air Hose and Regulator ..............................5 Figure 2: MedAir 2200 Interior Features ................................6 Figure 3: MedAir 2200 Mounting Dimensions ..............................7 Figure 2A: Relay, Input and Output Terminals ..............................

  • Page 4: I Ntroduction

    If you need your shipments insured, please forward a written request to ENMET Customer Service. Regarding Shortages If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of receipt at the following address: ENMET...

  • Page 5: I Nstrument F Eatures

    MedAir ENMET 2.0 Instrument Features 2.1 Exterior Features The exterior of the instrument is shown in Figure 1. The exterior features are as follows: Feature Description Enclosure An engineered thermoplastic box, approximately 10x8x6, with a clear hinged front cover. Input Port The entrance for the air sample and calibration gas.

  • Page 6: Figure 1A: Sample Air Hose And Regulator

    MedAir ENMET Display, see *note below CO reading reading Dew Point reading Visual Alarm 2 *Visual Alarm O2 (If Oxygen option is installed) See *note below A L A R M Channel #1 Channel #3 *Visual Alarm CO Male Quick Release Fitting...

  • Page 7: Circuit Board Features

    MedAir ENMET 2.3 Circuit Board Features The Display Panel is hinged on the left and is released by unscrewing the 2 screws located in the right corners. After releasing the panel, it is swung to the left, exposing the interior of the enclosure. The Circuit Board is mounted at the back surface of the enclosure interior.

  • Page 8: I Nstallation

    MedAir ENMET 3.0 Installation 3.1 Mounting of Instrument The M 2200 should be located near the pipe or tank containing the air to be monitored, and upstream from where the air is being used. The M 2200 must be installed such that it samples the compressed air before it reaches the users.

  • Page 9: Sample Air Supply

    The instrument may go into alarm briefly, but the sensors stabilize quickly. If the instrument persists in alarm, acknowledge the alarm by pressing the A switch. If alarm persists longer than 30 minutes, call ENMET UDIO EFEAT...

  • Page 10: Relay Contacts

    MedAir ENMET 3.4.1 Relay Contacts Relay contacts are available for each alarm; these are SPDT, rated at 10Amp at 110V , and may be latching or non-latching as required by the application. They are accessed on the terminals next to each relay see Figure 2 & 2A. The contact positions are noted on the circuit board next to each terminal.

  • Page 11: Optional 4-20Ma Outputs

    MedAir ENMET 3.4.2 Optional 4-20mA Outputs Isolated 4-20 mA outputs are available for data logging or other purposes. An output is supplied for each sensor supplied in a particular instrument, and can be added when a sensor is added in the field. These outputs are available on the Connector 1 for channels 1 &...

  • Page 12: O Peration

    MedAir ENMET 4.0 Operation 4.1 Normal Operation Condition With the M 2200 installed as described in Section 3, and in clean air, the POWER green LED is on, the display is lit and the information on the display is as shown in Figure 4 Display, for the sensor(s) installed in the M 2200.

  • Page 13: Alarm Latching Or Differential Settings

    MedAir ENMET 4.3 Alarm Latching or Differential Settings An instrument is shipped with the alarms in the latching mode. The alarms may be independently configured in the non-latching mode or differential setting by use of the maintenance menu. See Section 5.3.3, for setting alarm 1 and alarm 2.

  • Page 14: Operational Menu

    MedAir ENMET 4.6 Operational Menu The operational menu allows the user to:  View alarm set point concentration values  View alarm ascending/descending trigger, latching and delay configurations  Enter the maintenance menu with the proper Password. The operational menu is accessed with the switches.

  • Page 15: Fault Indications

    MedAir ENMET 4.7 Fault Indications 4.7.1 Low Flow Indication A flow sensor is used to furnish a low flow indication. When the sample air pressure drops below approximately 0.3 LPM, the fault light and audio alarm are activated, and the display flashes “Low Flow Alarm”.

  • Page 16: M Aintenance

    MedAir ENMET 5.0 Maintenance The M 2200 requires periodic sensor calibration and replacement. Calibration of toxic gas and oxygen sensor should be performed immediately following installation, one month after installation and every 3 months thereafter. HC sensor should be calibrated on a monthly bases. Oxygen and CO sensor have an estimated lifetime of 1 – 3 years. The CO sensor has an estimated lifetime of 3-5 years.

  • Page 17: Maintenance Menu Flow Chart

    MedAir ENMET 5.2.2 Maintenance Menu Flow Chart The maintenance menu diagram is shown in Figure 6 Maintenance Menu Flow Chart. From the operational display, press switch 6 times; "Enter MAINTENANCE Menu" is displayed. OPTION To/From From Operational Menu Operational O = Press Option...
  • Page 18 A Low Calibration sets clean air reference point and the High Calibration function sets the sensitivity of the instrument. Calibration equipment is available from ENMET to calibrate the M 2200. A list of needed material is in Section 7.0. A calibration adapter will have a fitting for the gas cylinder on one side, and a quick-disconnect to attach to the instrument on the other.

  • Page 19: A Low Cal/Zerocal Adjust

    MedAir ENMET Calibration/Sample Port Cylinder Valve and Regulator Cylinder of Gas Figure 7: Connection of Calibration Gas Cylinder 5.3.1A Low Cal/ZeroCal Adjust A Low Cal function should be performed only when the M 2200 sensor are exposed to clean uncontaminated air. Use a cylinder of 20.9% oxygen to provide a clean air reference if necessary.

  • Page 20: Set 4 –20Ma Transmitter Scale

    MedAir ENMET 5.3.2 Set 4 –20mA Transmitter Scale This section of the maintenance menu is installed when there are 4-20mA style sensors for dew point or other gases. This function is normally performed at the factory and is not usually required to be performed in the field unless a new transmitter is installed.

  • Page 21: Set Alarm Points

    MedAir ENMET 5.3.3 Set Alarm Points Factory alarm set points are discussed in Section 4.2, See Table 1. To change the alarm points, you must enter the maintenance menu. Entrance to the maintenance menu is guarded with a four-digit Password. The factory default setting of the password is 1270.
  • Page 22 MedAir ENMET Example: Set Alarms Flow Chart Displays are examples of Alarms O = Press Option Λ - Indicates alarm triggered on increasing value of reading S = Press Select v - Indicates alarm triggered on decreasing value of reading...

  • Page 23: Set Alarm Delay

    MedAir ENMET 5.3.4 Set Alarm Delay The alarms may be set to delay by 1 second increments, up to 255 seconds. Alarm delays are factory set to 5 seconds. To change an alarm delay, you must enter the maintenance menu. Press the switch until “Enter Maint Menu”...

  • Page 24: Relay Configuration

    MedAir ENMET 5.3.5 Relay Configuration To change a relay configuration, you must enter the maintenance menu. Press the switch until “Enter Maint Menu” is OPTION displayed then press switch for the Enter Password menu. Enter the valid password as described below.

  • Page 25: Failsafe Configuration

    S = Press Select R: 5 Failsafe 5.3.7 Set Output Span Range To change 4-20 mA output range. This range is set at the factory and should not be changed, contact ENMET for information.  Press the switch to continue to next section of maintenance menu.

  • Page 26: Set New Password

    When all four digits of the new password have been selected, "Set New Password" is displayed. Record the new password; without it, the maintenance menu cannot be reentered once you exit the Maintenance Menu. If the password is lost, call ENMET customer service personnel. From the "Password XXXX" position, ...

  • Page 27: Sensor Replacement

    A Low Calibration sets clean air reference point and the High Calibration function sets the sensitivity of the instrument. Calibration equipment is available from ENMET to calibrate the M 2200. A list of needed material is in Section 7.0. A calibration adapter will have a fitting for the gas cylinder on one side, and a quick-disconnect to attach to the instrument on the other.
  • Page 28 MedAir ENMET After entering a valid password to maintenance menu, see Section 5.2.1, the calibration section is the first menu section; enter by pressing the switch. SELECT Supply sensor with clean air for LowCal/ZeroCal setting and apply calibration gas for HiCal/SpanGas setting.

  • Page 29: A Low Cal/Zerocal Adjust

    MedAir ENMET Calibration/Sample Port Cylinder Valve and Regulator Cylinder of Gas Figure 7: Connection of Calibration Gas Cylinder 5.4.3A Low Cal/ZeroCal Adjust A Low Cal function should be performed only when the M 2200 sensor are exposed to clean uncontaminated air. Use a cylinder of 20.9% oxygen to provide a clean air reference if necessary.

  • Page 30: Dew Point Sensor

    MedAir ENMET 5.5 Dew Point Sensor Unlike the CO and O sensors, the dew point sensor cannot be field calibrated. To assure correct performance, the dew point sensor should be replaced every two years. 5.6 Flow Control Orifice / Pre-filter A 0.005-inch diameter orifice is used to set the flow rate and to drop the air pressure.

  • Page 31: T Echnical D Ata And S Pecifications

    MedAir ENMET 6.0 Technical Data and Specifications Electrical Power 15 Amp fused branch circuit 100-240 V 0.9 A 50/60 Hz Board Mounted Fuse FH2, 0.630A, 5 x 20mm Storage and Temperature: -20° to +60°C (-4° to +140°F) Transport preferred 0° to +20°C (32° to 68°F)

  • Page 32: R Eplacement P Art N Umbers

    MedAir ENMET 7.0 Replacement Part Numbers 7.1 ENMET part numbers for sensors and replacement parts: Part number Description 03009-005 Dew Point Probe 03053-000 Sensor, CO 67025-1114 Sensor, Oxygen 67025-1200 Sensor, CO 03028-000 Sensor, PID, 10.6 eV 03028-005 Sensor, Replacement lamp, PID, 10.6 eV...
  • Page 33 ENMET, LLC for damages arising out of or in connection with the use or repair or performance of the product.
  • Page 34 ENMET charges a one hour minimum billing for all approved repairs with additional time billed to the closest tenth of an hour. All instruments sent to ENMET are subject to a minimum evaluation fee, even if returned unrepaired.

  • Page 35: A Ppendix A: Co C Haracteristics

    MedAir ENMET Appendix A: CO Characteristics The Characteristics and Effects of Carbon Monoxide Carbon monoxide is a colorless odorless toxic gas generated by incomplete combustion of a hydrocarbon fuel in air. It may be present where internal combustion engines, furnaces, boilers, and other combustion devices are present. It is toxic when inhaled because of its great affinity to hemoglobin, the oxygen carriers in the red cells of the blood.

  • Page 36: A Ppendix B: G As I Onization P Otentials

    MedAir ENMET Appendix B: Gas Ionization Potentials Chemical Name IP (eV) Chemical Name IP (eV) p-Bromotoluene 8.67 2-Amino pyridine 8.00 p-tert-Butyltoluene 8.28 Acetaldehyde 10.21 s-Butyl amine 8.70 Acetamide 9.77 s-Butyl benzene 8.68 Acetic acid 10.69 sec-Butyl acetate 9.91 Acetic anhydride 10.00...
  • Page 37 MedAir ENMET Chemical Name IP (eV) Chemical Name IP (eV) (D continued) Decaborane 9.88 2-Furaldehyde 9.21 Diazomethane 9.00 Fluorine 15.70 Diborane 12.00 Fluorobenzene 9.20 Dibromochloromethane 10.59 Formaldehyde 10.87 Dibromodifluoromethane 11.07 Formamide 10.25 Dibromomethane 10.49 Formic acid 11.05 Dibutylamine 7.69 Freon 11 (trichlorofluoromethane) 11.77...
  • Page 38 MedAir ENMET Chemical Name IP (eV) Chemical Name IP (eV) (P continued) 2-Methyl furan 8.39 2-Pentanone 9.38 2-Methyl napthalene 7.96 2-Picoline 9.02 1-Methyl napthalene 7.96 3-Picoline 9.02 2-Methyl propene 9.23 4-Picoline 9.04 2-Methyl-1-butene 9.12 n-Propyl nitrate 11.07 2-Methylpentane 10.12 Pentaborane 10.40...
  • Page 39 MedAir ENMET Chemical Name IP (eV) Chemical Name IP (eV) (T continued) Trimethyl amine 7.82 Water 12.59 Tripropyl amine 7.23 2,4-Xylidine 7.65 o-Vinyl toluene 8.20 m-Xylene 8.56 Valeraldehyde 9.82 o-Xylene 8.56 Valeric acid 10.12 p-Xylene 8.45 Vinyl acetate 9.19 Vinyl bromide 9.80...
  • Page 40 MedAir ENMET Notes: Manual Release Date – June 9, 2017 P a g e | 39 Manual Part No. – 80002-042...
  • Page 41 Mailing/Shipping Address: ENMET 680 Fairfield Court Ann Arbor, MI 48108 Phone: 734.761.1270 repair@enmet.com Fax: 734.761.3220 Service Request Form Product Name or Number: Product Serial Number: Describe Problem or Needed Service: Warranty Claim? ☐ Yes ☐ No CUSTOMER INFORMATION Billing Address:...

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