Rki-instruments M2A Manual de usuario

RKI Instruments, Inc.www.rkiinstruments.comM2A TransmitterOperator’s Manual Part Number: 71-0305RKRevision: P2Released: 6/26/14

5 M2A Transmitter Operator’s ManualUse the junction box’s two mounting holes to mount the M2A to a vertical surface at the monitoring site. The windo

M2A Transmitter Operator’s Manual 6Catalytic LEL DetectorsThe catalytic LEL detectors have a 1/2” NPT thread and require a 3/4”NPT x 1/2”NPT reducer

7 M2A Transmitter Operator’s ManualFigure 3: 65-2494RK Oxygen Detector, Non-Explosion Proof, Capillary TypeCO and H2S DetectorsBoth types of CO and H

M2A Transmitter Operator’s Manual 8Figure 5: 65-2496RK CO Detector Non-Explosion ProofFigure 6: 65-2423RK-05 H2S Detector, CSAHydrophobic MembraneCO

9 M2A Transmitter Operator’s ManualFigure 7: 65-2495RK H2S Detector Non-Explosion ProofESM-01 DetectorsThe construction of the various ESM-01 detecto

M2A Transmitter Operator’s Manual 10Internal DescriptionThis section describes the internal components of the M2A. The internal components of the M2A

11 M2A Transmitter Operator’s Manualto program the M2A. On the combustible and CO2 versions of the M2A, a factory adjust pot just above the programmi

M2A Transmitter Operator’s Manual 12Relay Terminal StripsThe right column of terminal strips consists of, from top to bottom, the fail, alarm 1, and

13 M2A Transmitter Operator’s Manualswitch below it. The magnetic switches are for use in non-intrusive calibration. They are actuated by bringing th

M2A Transmitter Operator’s Manual 14Chapter 3: Installation & StartupOverviewThis chapter describes procedures to mount the M2A Transmitter in th

M2A Transmitter Operator’s ManualWARNINGRead and understand this instruction manual before operating instrument. Improper use of the gas monitor c

15 M2A Transmitter Operator’s ManualFigure 12: Outline & Mounting Dimensions, IR Combustible & CO2Figure 13: Outline & Mounting Dimension

M2A Transmitter Operator’s Manual 16Figure 14: Outline & Mounting Dimensions, Replaceable Sensor, Non Explosion Proof, H2S, CO, and OxygenFigure

17 M2A Transmitter Operator’s ManualFigure 16: Outline & Mounting Dimensions, ESM-01 Toxic10.4 max4.82 max3/4 NPT Conduit Hub2.41.30 (2X).47 (2X)

M2A Transmitter Operator’s Manual 18Wiring the M2A TransmitterWARNING: Always verify that the power source is OFF before making any wiring connection

19 M2A Transmitter Operator’s Manual• Oxygen Detector, Partial Pressure, Capillary Type, and CSA Capillary TypeThe wiring for all the oxygen detector

M2A Transmitter Operator’s Manual 20Figure 22: Capillary Type Replaceable Sensor Oxygen Detector Wiring• CSA type CO or H2S gas detector.Red wire to

21 M2A Transmitter Operator’s Manual• ESM-01 Toxic DetectorsThe ESM-01 toxic detectors have one black wire and one color coded wire. Connect the colo

M2A Transmitter Operator’s Manual 22The number of cables or wires needed will depend on whether the M2A is wired to a gas monitoring controller or ju

23 M2A Transmitter Operator’s ManualSee Figure 26 below for field wiring connections to the M2A.Figure 26: Wiring the M2A to a Controller and Alarm D

M2A Transmitter Operator’s Manual 24NOTE: Allow the M2A’s detector to warm up for 15 minutes before you continue with the next section, “Adjusting th

M2A Transmitter Operator’s ManualProduct WarrantyRKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defects in materials,

25 M2A Transmitter Operator’s Manual2. Press and release the UP/YES button to continue. The display will indicate the target gas and CAL Mode for a f

M2A Transmitter Operator’s Manual 26Chapter 4: OperationOverviewThis chapter describes the M2A in normal operation. This chapter also describes the M

27 M2A Transmitter Operator’s Manual4 - 20 mA Signal Output OperationThe output at the S terminal of the power/signal terminal strip is a 4 - 20 mA s

M2A Transmitter Operator’s Manual 28Alarm IndicationsNOTE: The M2A includes alarm on and alarm off delay settings for alarm 1 and alarm 2. The alarm

29 M2A Transmitter Operator’s ManualOLED display, and de-energizes the alarm 1 relay.NOTE: If the ENTER button is pressed while the M2A is in an alar

M2A Transmitter Operator’s Manual 30Responding to a Fail Condition1. Verify that the detector wiring is correctly and securely connected.2. If the M2

31 M2A Transmitter Operator’s ManualChapter 5: Configuration ModeOverviewThis chapter describes how to view and change M2A parameters using Configura

M2A Transmitter Operator’s Manual 32Table 6: Configuration ParametersParameter(Factory Set Value)DescriptionALARM-1 (level)(See “M2A Specifications”

33 M2A Transmitter Operator’s Manual4. When you have scrolled through all the adjustable parameters, SAVE IT? YES/NO appears on the display.5. If you

M2A Transmitter Operator’s Manual 34Chapter 6: Gas Type ModeOverviewThis chapter describes how to use Gas Type Mode to select the M2A’s gas type. The

M2A Transmitter Operator’s ManualTable of ContentsChapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35 M2A Transmitter Operator’s ManualCO2 0 - 2,000 ppmCO2 0 - 100% volumeCO2 0 - 50.0% volumeCO2 0 - 5.00% volumeNH3 0 - 5.00% volumeNH3 0 - 2.00% vol

M2A Transmitter Operator’s Manual 36NOTE: Consult factory for availability of detectors for toxic M2A types not listed in “M2A Specifications” on pag

37 M2A Transmitter Operator’s ManualChapter 7: MaintenanceOverviewThis chapter describes procedures for performing preventive maintenance, troublesho

M2A Transmitter Operator’s Manual 38NOTE: When applying gas to an NH3 ESM-01, the 0.25 LPM flowrate regulator must be used. All other M2As require a

39 M2A Transmitter Operator’s ManualTroubleshootingThe troubleshooting guide describes symptoms, probable causes, and recommended action for problems

M2A Transmitter Operator’s Manual 40Fail Condition • M2A indicates a fail condition.• Controller indicates a fail condition• The detector wiring to t

41 M2A Transmitter Operator’s ManualCalibration FrequencySome M2As have IR (infrared) type detectors, such as an M2A for CO2 or an LEL M2A with an IR

M2A Transmitter Operator’s Manual 42Calibration, Combustible Gas, CO2, and Toxic VersionsThis section describes how to calibrate the combustible gas,

43 M2A Transmitter Operator’s ManualNon-Intrusive CalibrationIf the M2A is installed in a classified area and non-intrusive calibration is required,

M2A Transmitter Operator’s Manual 44Adjusting the Span Setting1. If you want to continue with adjusting the span setting, press and release the UP/YE

M2A Transmitter Operator’s ManualChapter 7: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45 M2A Transmitter Operator’s ManualCalibration, Oxygen VersionThis section describes how to calibrate the oxygen version of the M2A. It includes pro

M2A Transmitter Operator’s Manual 46reading at the highest response and the M2A will continue to display this reading and retain it in its memory unt

47 M2A Transmitter Operator’s Manual5. Turn the regulator knob clockwise to close the regulator.6. Unscrew the nitrogen cylinder from the fixed flow

M2A Transmitter Operator’s Manual 48coded leads as you remove them.8. Unscrew the detector from the junction box.9. Guide the replacement detector le

49 M2A Transmitter Operator’s Manualrubber boot and spacer from the old sensor.5. If you are replacing a CO sensor, install the rubber boot and charc

M2A Transmitter Operator’s Manual 50NOTE: Allow the replacement sensor to warm up for 15 minutes before you continue with the next step.7. Calibrate

51 M2A Transmitter Operator’s ManualChapter 8: RS-485 Modbus OutputOverviewThis chapter describes the M2A’s RS-485 Modbus output and how to configure

M2A Transmitter Operator’s Manual 52Recommended Modbus WiringThe recommended Modbus wiring for the M2A is illustrated in Figure 27 below. In this con

53 M2A Transmitter Operator’s ManualAdding an M2A to an Existing M2 Modbus Installation with Alternate WiringAn M2A can be wired into an existing M2

M2A Transmitter Operator’s Manual 54Figure 30: Multiple M2As in a Two Branch ConfigurationUsing the M2A in a 4-wire Modbus SystemAlthough the M2A is

1 M2A Transmitter Operator’s ManualChapter 1: IntroductionOverviewThis chapter briefly describes the M2A Transmitter. This chapter also describes the

55 M2A Transmitter Operator’s Manualfor 5 seconds to enter Modbus Mode. Release the buttons when the following screen appears.2. To exit Modbus Mode,

M2A Transmitter Operator’s Manual 564. When you have scrolled through all the adjustable parameters, SAVE IT? YES/NO appears on the display.5. If you

57 M2A Transmitter Operator’s ManualSupported Modbus FunctionsThe M2A supports Function Code 03: Read Holding Registers and Function Code 16: Write R

M2A Transmitter Operator’s Manual 58Register 3Register 3 is the supply voltage (0.1 volt per count).Registers 4 - 11The 16 bytes in these registers c

59 M2A Transmitter Operator’s ManualRegister 23Register 23 is the alarm 1 trigger.0=Decreasing1=IncreasingRegister 24Register 24 is the alarm 1 norma

M2A Transmitter Operator’s Manual 60Register 34Register 34 is noise filter.Integer values in seconds.0-60 in 5 second increments.Register 35Register

61 M2A Transmitter Operator’s ManualFunction Code 16: Write RegistersThere are 21 registers in Function Code 16 that can be used to write to the M2A.

M2A Transmitter Operator’s Manual 6261-0191RK-10 CO2 detector, IR type, 0 - 100% volume61-0192RK-CH4 CH4 detector, IR type, 0 - 100% volume61-0198RK-

63 M2A Transmitter Operator’s Manual81-0013RK-05 Calibration cylinder, 50% volume methane in nitrogen, 58 liter steel81-0064RK-01 Calibration cylinde

M2A Transmitter Operator’s Manual 6481-1117RK Calibration cup, for catalytic LEL, CO, H2S, and oxygen detectors81-1138RK Calibration cup, general (SO

M2A Transmitter Operator’s Manual 2SpecificationsTable 1 lists specifications for the M2A.Table 1: M2A SpecificationsTarget Gas/Detection Range Combu

65 M2A Transmitter Operator’s ManualAppendix A: Control Button Quick Reference GuideThe M2A’s control buttons allow access to operational modes, rese

M2A Transmitter Operator’s Manual 66Appendix B: PLC and DCS Device WiringThe M2A can be wired to a PLC or DCS device if desired. 1. Guide multi condu

67 M2A Transmitter Operator’s ManualSee Figure 31 below for field wiring connections to the M2A. Figure 31: PLC and DCS Device WiringAlarm 1 Ala

M2A Transmitter Operator’s Manual 68Appendix C: Function Code 16 RegistersThe M2A supports Function Code 16 that allows writing to the M2A. There are

69 M2A Transmitter Operator’s ManualRegister 10Register 10 is the alarm 2 relay reset.0=Latching1=Self-ResettingRegister 11Register 11 is the alarm 2

M2A Transmitter Operator’s Manual 70Register 20Register 20 is the AutoZero Disable.0=AutoZero Enabled1=AutoZero DisabledRegister 21Register 21 is the

3 M2A Transmitter Operator’s ManualWARNING: When using the M2A, you must follow the instructions and warnings in this manual to assure proper and saf

M2A Transmitter Operator’s Manual 4Chapter 2: DescriptionOverviewThis chapter describes external and internal components of the M2A Transmitter.Exter