Enmet MEDAIR 2200 Manuale Utente

ENMET Corporation PO Box 979 Ann Arbor, MI 48106-0979 www.enmet.com Manual part number 80002-042 MCN-13-009, 12/09/13

MEDAIR 2200 ENMET Corporation 7 3.4.1 Relay Contacts Relay contacts are available for each alarm; these are SPDT, rated at 10Amp at 110VAC, and m

MEDAIR 2200 ENMET Corporation 8 3.4.2 Optional 4-20mA Outputs Isolated 4-20 mA outputs are available for data logging or other purposes. An outp

MEDAIR 2200 ENMET Corporation 9 4.0 Operation 4.1 Normal Operation Condition With the MEDAIR 2200 installed as described in Section 3, and in cle

MEDAIR 2200 ENMET Corporation 10 4.3 Alarm Latching or Differential Settings An instrument is shipped with the alarms in the latching mode. The

MEDAIR 2200 ENMET Corporation 11 4.6 Operational Menu The operational menu allows the user to:  View alarm set point concentration values  View

MEDAIR 2200 ENMET Corporation 12 4.7 Fault Indications 4.7.1 Low Flow Indication A flow sensor is used to furnish a low flow indication. When th

MEDAIR 2200 ENMET Corporation 13 5.0 Maintenance The MEDAIR 2200 requires periodic sensor calibration and replacement. Calibration of toxic gas

MEDAIR 2200 ENMET Corporation 14 5.2.2 Maintenance Menu Flow Chart The maintenance menu diagram is shown in Figure 6 Maintenance Menu Flow Chart.

MEDAIR 2200 ENMET Corporation 15 5.3 Calibration for CO, O2, HC and CO2 (Gas Channels) Calibration is the process of setting the instrument up to

MEDAIR 2200 ENMET Corporation 16 Figure 7: Connection of Calibration Gas Cylinder 5.3.1A Low Cal/ZeroCal Adjust A Low Cal function should be pe

Table of Contents 1.0 INTRODUCTION ...

MEDAIR 2200 ENMET Corporation 17 5.3.2 Set 4 –20mA Transmitter Scale This section of the maintenance menu is installed when there are 4-20mA styl

MEDAIR 2200 ENMET Corporation 18 5.3.3 Set Alarm Points Factory alarm set points are discussed in Section 4.2, See Table 1. To change the alarm p

MEDAIR 2200 ENMET Corporation 19 Example: Set Alarms Flow Chart Displays are examples of Alarms Λ - Indicates alarm triggered on increasing value

MEDAIR 2200 ENMET Corporation 20 5.3.4 Set Alarm Delay The alarms may be set to delay by 1 second increments, up to 255 seconds. Alarm delays are

MEDAIR 2200 ENMET Corporation 21 5.3.5 Relay Configuration To change a relay configuration you must enter the maintenance menu. Press the OPTION

MEDAIR 2200 ENMET Corporation 22 5.3.6 Failsafe Configuration To change a relay failsafe configuration you must enter the maintenance menu. Pres

MEDAIR 2200 ENMET Corporation 23 5.3.8 Set New Password To change the password, you must enter the maintenance menu. Press the OPTION switch unti

MEDAIR 2200 ENMET Corporation 24 5.4 Sensor Replacement 5.4.1 Oxygen / Gas Sensor A Gas sensor must be replaced when it can no longer be calibrate

MEDAIR 2200 ENMET Corporation 25 After entering a valid password to maintenance menu, see Section 5.2.1, the calibration section is the first men

MEDAIR 2200 ENMET Corporation 26 Figure 7: Connection of Calibration Gas Cylinder 5.4.3A Low Cal/ZeroCal Adjust A Low Cal function should be pe

List of Figures FIGURE 1: EXTERNAL FEATURES OF THE MEDAIR 2200 ...

MEDAIR 2200 ENMET Corporation 27 5.5 Dew Point Sensor Unlike the CO and O2 sensors, the dew point sensor cannot be field calibrated. To assure co

MEDAIR 2200 ENMET Corporation 28 6.0 Technical Data and Specifications Electrical Power 15 Amp fused branch circuit 100-240 VAC 0.9 A 50/60

MEDAIR 2200 ENMET Corporation 29 7.0 Replacement Part Numbers 7.1 ENMET part numbers for sensors and replacement parts: Part number Description

MEDAIR 2200 ENMET Corporation 30 8.0 WARRANTY ENMET warrants new instruments to be free from defects in workmanship and material under normal use

MEDAIR 2200 ENMET Corporation 31 Appendix A: CO Characteristics The Characteristics and Effects of Carbon Monoxide Carbon monoxide is a colorless

MEDAIR 2200 ENMET Corporation 32 Appendix B: Gas Ionization Potentials Chemical Name IP (eV) Chemical Name IP (eV) A p-Bromotoluene 8.67 2

MEDAIR 2200 ENMET Corporation 33 Chemical Name IP (eV) Chemical Name IP (eV) (D continued) F Decaborane 9.88 2-Furaldehyde 9.21 Diazom

MEDAIR 2200 ENMET Corporation 34 Chemical Name IP (eV) Chemical Name IP (eV) M (P continued) 2-Methyl furan 8.39 2-Pentanone 9.38 2-Me

MEDAIR 2200 ENMET Corporation 35 Chemical Name IP (eV) Chemical Name IP (eV) (T continued) W Trimethyl amine 7.82 Water 12.59 Tripropy

PO Box 979 680 Fairfield Court Ann Arbor, Michigan 48106-0979 734.761.1270 Fax 734.761.3220 Returning an Instrument for Repair ENMET instrumen

MEDAIR 2200 ENMET Corporation 1 1.0 Introduction The MEDAIR 2200 is a compressed air monitoring instrument that measures and detects certain haza

Repair Return Form Mailing Address: ENMET Corporation PO Box 979 Ann Arbor, Michigan 48106 Phone Number: 734.761.1270 FAX Number: 734.

MEDAIR 2200 ENMET Corporation 2 2.0 Instrument Features 2.1 Exterior Features The exterior of the instrument is shown in Figure 1. The exterior

MEDAIR 2200 ENMET Corporation 3 Figure 1: External Features of the MEDAIR 2200 * NOTE: Typical gas reading & alarm locations, depending o

MEDAIR 2200 ENMET Corporation 4 2.3 Circuit Board Features The Display Panel is hinged on the left and is released by unscrewing the 2 screws loc

MEDAIR 2200 ENMET Corporation 5 3.0 Installation 3.1 Mounting of Instrument The MEDAIR 2200 should be located near the pipe or tank containing th

MEDAIR 2200 ENMET Corporation 6 3.2 Sample Air Supply Tap the pipe or tank containing the breathing air and use appropriate fittings to connect t