Rki-instruments 65-2649RK-HC-04 Manual de usuario

RKI Instruments, Inc.www.rkiinstruments.com65-2649RK-HC-04M2A TransmitterOperator’s Manual Part Number: 71-0327Revision: P1Released: 6/17/14

5 65-2649RK-HC-04 M2A Transmitter Operator’s ManualInternal DescriptionThis section describes the internal components of the M2A. The internal comp

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 6Power/Signal Terminal StripThe power/signal terminal strip is a three position plug-in style termi

7 65-2649RK-HC-04 M2A Transmitter Operator’s Manualinstallation. See “Chapter 8: RS-485 Modbus Output” on page 36 for a description of using the M2

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 8Status LEDsThe M2A includes five status LEDs that are located above the display (see Figure 2).• F

9 65-2649RK-HC-04 M2A Transmitter Operator’s ManualChapter 3: Installation & StartupOverviewThis chapter describes procedures to mount the M2A

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 10Figure 5: Outline & Mounting Dimensions, Detector Junction Box3. Install 3/16 inch I.D. flexi

11 65-2649RK-HC-04 M2A Transmitter Operator’s ManualWiring the M2A TransmitterWARNING: Always verify that the power to the M2A is off before you ma

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 1212. Pull out the detector terminal strip and connect the four wires to the terminal strip as foll

13 65-2649RK-HC-04 M2A Transmitter Operator’s Manual14. If shielded cable is used between the detector junction box and the M2A junction box, conne

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 14See Figure 7 below for field wiring connections to the M2A.Figure 7: Wiring the M2A Junction Box

65-2649RK-HC-04 M2A Transmitter Operator’s ManualWARNINGRead and understand this instruction manual before operating instrument. Improper use of the

15 65-2649RK-HC-04 M2A Transmitter Operator’s ManualStart UpIntroducing Incoming Power1. Complete the installation procedures described earlier in

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 16WARNING: The M2A is not an active gas monitoring device during the fresh air adjustment procedure

17 65-2649RK-HC-04 M2A Transmitter Operator’s ManualChapter 4: OperationOverviewThis chapter describes the M2A in normal operation. This chapter al

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 184 - 20 mA Signal Output OperationThe output at the S terminal of the power/signal terminal strip

19 65-2649RK-HC-04 M2A Transmitter Operator’s ManualNOTE: You can select normally energized (N. EN) or normally de-energized (N. DE-EN) alarm 1 and

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 20NOTE: If the M2A is in both an alarm 1 and alarm 2 condition, both the A1 and A2 LEDs will be on,

21 65-2649RK-HC-04 M2A Transmitter Operator’s ManualNOTE: The low power alarm cannot be cleared using the ENTER button.When the voltage increases t

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 22Chapter 5: Configuration ModeOverviewThis chapter describes how to view and change M2A parameters

23 65-2649RK-HC-04 M2A Transmitter Operator’s ManualTable 5: Configuration ParametersParameter(Factory Set Value)DescriptionALARM-1 (level)(10% LEL

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 244. When you have scrolled through all the adjustable parameters, SAVE IT? YES/NO appears on the d

65-2649RK-HC-04 M2A Transmitter Operator’s ManualProduct WarrantyRKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defect

25 65-2649RK-HC-04 M2A Transmitter Operator’s ManualChapter 6: Gas Type ModeOverviewThis chapter describes how to use Gas Type Mode to select the M

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 264. When the desired target gas is on the display, press and release the ENTER button. The display

27 65-2649RK-HC-04 M2A Transmitter Operator’s ManualNOTE: When calibrating an M2A after changing the gas type, the M2A will not ask if you want to

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 28Chapter 7: MaintenanceOverviewThis chapter describes procedures for performing preventive mainten

29 65-2649RK-HC-04 M2A Transmitter Operator’s Manual10. If external alarms have been disabled, enable them when the display returns to a normal fre

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 30Flickering DisplayThe display reading flickers often.•The M2A is experiencing false readings due

31 65-2649RK-HC-04 M2A Transmitter Operator’s ManualCalibration FrequencyAlthough there is no particular calibration frequency that is correct for

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 32CalibrationThis section describes how to calibrate the M2A transmitter. It includes procedures to

33 65-2649RK-HC-04 M2A Transmitter Operator’s ManualAdjusting the Fresh Air Reading1. While in normal operation, press and hold the UP/YES button f

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 34Response Time” on page 31.5. Turn the regulator knob clockwise to close it.6. Unscrew the calibra

65-2649RK-HC-04 M2A Transmitter Operator’s ManualTable of ContentsChapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35 65-2649RK-HC-04 M2A Transmitter Operator’s ManualNOTE: Allow the replacement detector to warm up for 15 minutes before you continue with the nex

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 36Chapter 8: RS-485 Modbus OutputOverviewThis chapter describes the M2A’s RS-485 Modbus output and

37 65-2649RK-HC-04 M2A Transmitter Operator’s ManualRecommended Modbus WiringThe recommended Modbus wiring for the M2A is illustrated in Figure 8 b

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 38Adding an M2A to an Existing M2 Modbus Installation with Alternate WiringAn M2A can be wired into

39 65-2649RK-HC-04 M2A Transmitter Operator’s ManualUsing the M2A in a 4-wire Modbus SystemAlthough the M2A is a 2-wire Modbus RTU device, it can b

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 404. When you have scrolled through all the adjustable parameters, SAVE IT? YES/NO appears on the d

41 65-2649RK-HC-04 M2A Transmitter Operator’s ManualSupported Modbus FunctionsThe M2A supports Function Code 03: Read Holding Registers and Functio

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 42Register 3Register 3 is the supply voltage (0.1 volt per count).Registers 4 - 11The 16 bytes in t

43 65-2649RK-HC-04 M2A Transmitter Operator’s ManualRegisters 15 - 19Registers 15 - 19 are the Gas Name ASCII String (NULL Terminated).Registers 20

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 44Register 33Register 33 is zero suppression.Toxics and LEL: 0%-6% of full scaleOxygen: 0%-0.7% Oxy

65-2649RK-HC-04 M2A Transmitter Operator’s ManualChapter 7: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45 65-2649RK-HC-04 M2A Transmitter Operator’s ManualFunction Code 16: Write RegistersThere are 21 registers in Function Code 16 that can be used to

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 46Parts ListTable 13 lists replacement parts and accessories for the M2A Transmitter.Table 13: Part

47 65-2649RK-HC-04 M2A Transmitter Operator’s ManualAppendix A: Control Button Quick Reference GuideThe M2A’s control buttons allow access to opera

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 48Appendix B: PLC and DCS Device WiringThe M2A can be wired to a PLC or DCS device if desired. 1. G

49 65-2649RK-HC-04 M2A Transmitter Operator’s ManualSee Figure 12 below for field wiring connections to the M2A. Figure 12: PLC and DCS Device

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 50Appendix C: Function Code 16 RegistersThe M2A supports Function Code 16 that allows writing to th

51 65-2649RK-HC-04 M2A Transmitter Operator’s Manual1=Self-ResettingRegister 11Register 11 is the alarm 2 ON delay.Integer value is in seconds.Regi

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 52Register 19Register 19 is for clearing change flags. When parameters are changed at the M2A, a fl

1 65-2649RK-HC-04 M2A Transmitter Operator’s ManualChapter 1: IntroductionOverviewThis chapter briefly describes the 65-2649RK-HC-04 M2A Transmitte

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 2SpecificationsTable 1 lists specifications for the M2A.WARNING: When using the M2A, you must follo

3 65-2649RK-HC-04 M2A Transmitter Operator’s ManualChapter 2: DescriptionOverviewThis chapter describes the components of the M2A transmitter. The

65-2649RK-HC-04 M2A Transmitter Operator’s Manual 4M2A Junction BoxThe M2A’s cast aluminum junction box protects the terminal PCB and wiring connecti