RKI Instruments 65-2619RK-CH4-4 Operator'S Manual Download Page 39 | Manualshive

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65-2619RK-CH4-4 M2 Transmitter Operator’s Manual

34

NOTE:

Allow the replacement detector to warm up for 15 minutes before you continue
with the next step.

11. Calibrate the replacement detector as described in “Calibration” on page 31.

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Summary of Contents for 65-2619RK-CH4-4

Page 1: ...65 2619RK CH4 4 M2 Transmitter Operator s Manual Part Number 71 0289RK Revision 0 Released 12 27 13 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 2: ...e gas monitor is essential for proper operation and correct readings Please calibrate and maintain this instrument regularly Frequency of calibration depends upon the type of use you have and the sens...

Page 3: ...sportation costs or contingent expenses incurred without our prior approval THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIONS EXPRESSED OR IMPLIED AND ALL OTHER OB...

Page 4: ...tallation Startup 9 Overview 9 Mounting the M2 Transmitter 9 Wiring the M2 Transmitter 11 Start Up 14 Chapter 4 Operation 16 Overview 16 Normal Operation 16 Information Screen 16 4 20 mA Signal Output...

Page 5: ...the M2 in a Modbus System 35 Using the M2 in a 4 wire Modbus System 38 Modbus Mode 38 Supported Modbus Functions 40 Parts List 45 Appendix A Control Button Quick Reference Guide 46 Appendix B PLC and...

Page 6: ...front face and provides a 4 20 mA signal which indicates the target gas reading for use by a gas monitoring controller recording device or programmable controller The M2 also provides an RS 485 Modbu...

Page 7: ...assignments See Supported Modbus Functions on page 40 for information on the current Modbus register assignments The firmware version is shown on the Information Screen described on page 16 Table 1 M2...

Page 8: ...of the combustible gas detector calibration adapter splash guard terminal PCB the M2 junction box and the detector junction box The two junction box configuration is intended for situations where the...

Page 9: ...stalled on the back of the junction box controls the distance of the junction box from a mounting surface Infrared LEL Detector The infrared LEL detector is made up of a miniature infrared combustible...

Page 10: ...dbus network The terminal PCB also controls three relays one fail and two gas alarm relays Two columns of plug in style terminal strips are used to make all wiring connections to the M2 The column on...

Page 11: ...e terminal strip in the left terminal column All four terminals are used to connect the detector to the M2 Figure 3 Detector Terminal Strip NOTE The detector is factory wired to the M2 See Wiring the...

Page 12: ...ER button is on the right Just above each push button switch is a magnetic switch with the same function as the push button switch below it The magnetic switches are for use in non intrusive calibrati...

Page 13: ...ition can be caused by a detector failure or low detector signal Alarm 1 LED The alarm 1 LED is on when the M2 is experiencing an alarm 1 condition Alarm 2 LED The alarm 2 LED is on when the M2 is exp...

Page 14: ...the detector junction box select a site where the target gas is likely to be found first For lighter gases mount the detector near the ceiling for heavier gases mount the detector near the floor The j...

Page 15: ...at the bottom of the calibration adapter splash guard and route it to an accessible area that is close to the M2 junction box See the Parts List on page 45 for available tubing 38 2 70 Rubber Spacer 3...

Page 16: ...junction box 10 Guide the other end of the four conductor shielded cable or four wires in conduit through the bottom conduit hub of the M2 junction box 11 To gain access to a plug in terminal strip fo...

Page 17: ...d drain wire at the detector junction box 15 Guide multi conductor shielded cable or cables or wires in conduit through the top conduit hub of the M2 junction box The number of cables or wires needed...

Page 18: ...rated for the power that it will carry CAUTION If shielded cable is used for the PWR SIG connections leave the cable shield s drain wire insulated and disconnected at the M2 junction box You will conn...

Page 19: ...rrent gas reading after the warm up period is complete and normal operation begins NOTE Allow the M2 s detector to warm up for 15 minutes before you continue with the next section Adjusting the Fresh...

Page 20: ...tion time out period the unit will return to normal operation The factory set time out is 15 minutes If you want a different time out period see Viewing Changing M2 Parameters on page 21 for instructi...

Page 21: ...ltage and firmware and hardware information To display the Information Screen do the following 1 Press and hold the DOWN NO button for 3 seconds The Information Screen will appear 2 Continue holding t...

Page 22: ...ll be fixed at 3 5 mA until the M2 returns to normal operation If the M2 s input power decreases below 18 5 volts so that the M2 is in a low power alarm the signal output is fixed below 2 4 mA until t...

Page 23: ...ng the alarm 1 circuit turns off the A1 LED resets the LCD and de energizes the alarm 1 relay NOTE If the ENTER button is pressed while the M2 is in an alarm 1 condition the A1 LED will flash but all...

Page 24: ...ail Condition Indications The M2 indicates a fail condition for any of the following The detector wiring is disconnected or incorrectly connected The display reading is 10 of full scale or lower When...

Page 25: ...Responding to a Low Power Condition 1 Determine and correct the cause of the low power condition 2 When the input power increases above 19 0 volts the M2 will begin its warm up sequence 3 Verify that...

Page 26: ...ultaneously press and hold the UP YES and ENTER buttons for 5 seconds to enter Configuration Mode Release the buttons when the following screen appears 2 If you want to exit Configuration Mode press a...

Page 27: ...ond increments from 0 60 seconds in 1 minute increments from 1 15 minutes and in 15 minute increments from 15 60 minutes ALARM 2 level 50 LEL The gas reading at which the M2 initiates an alarm 2 condi...

Page 28: ...isplay a reading of 0 LEL for gas readings from 2 LEL to 2 LEL It is settable from 0 to 6 of the detection range FILTER 5 secs The filter feature helps smooth out jumpy or noisy signals from the detec...

Page 29: ...g the warm up sequence press and hold the UP YES and DOWN NO buttons for five seconds Release them when the following screen appears 2 If you want to exit Gas Type Mode press and release the DOWN NO b...

Page 30: ...tton display will ask SAVE IT YES NO 8 To save the configuration settings press and release the UP YES button The display will indicate Config Saved and the M2 will begin its warm up sequence To disca...

Page 31: ...you want to calibrate or whether you want to perform a fresh air adjustment span adjustment or zero adjustment Since a complete calibration is required the calibration sequence will proceed without as...

Page 32: ...inder and a fixed flow regulator with an on off knob 1 Disable all external alarms if external alarm indications are not desired during the response test 2 Screw the calibration gas cylinder into the...

Page 33: ...he power wiring is disconnected or misconnected The display cable is disconnected or misconnected 1 Verify that the wiring to the power source or controller is correct and secure 2 Verify that the rib...

Page 34: ...ion Slow or No Response Difficult or Unable to Calibrate M2 responds slowly or does not respond to response test Unable to successfully set the fresh air or span reading during calibration M2 requires...

Page 35: ...he length of tubing connected 1 Place the M2 into its calibration mode or disable external alarms 2 Note the current gas reading displayed at the M2 3 Screw the regulator into the calibration cylinder...

Page 36: ...and non intrusive calibration is required follow the instructions below but do not remove the junction box cover Use the magnetic wand accessory to actuate the magnetic switches instead of pushing th...

Page 37: ...open the regulator 7 Allow zero air to flow for the length of time determined in Determining Response Time on page 30 8 Turn the regulator knob clockwise to close the regulator 9 Unscrew the zero air...

Page 38: ...1 minute period the REMOVE CAL GAS message will stop appearing and the M2 will return to normal operation 10 Disconnect the calibration adapter splash guard s flexible tubing from the regulator NOTE...

Page 39: ...Allow the replacement detector to warm up for 15 minutes before you continue with the next step 11 Calibrate the replacement detector as described in Calibration on page 31 www GlobalTestSupply com Fi...

Page 40: ...strate typical M2 wiring configurations If more than 128 M2s need to be connected together RS 485 repeater s should be used such that no more than 128 M2s reside on any given network segment CAUTION T...

Page 41: ...nal on the Modbus controller is omitted Instead the Common terminal on the Modbus controller is connected to the of the 24 VDC power supply Figure 9 Alternate Modbus Wiring C NC NO C NC NO C NC NO ALA...

Page 42: ...10 Multiple M2s in a Daisy Chain Configuration Figure 11 Multiple M2s in a Two Branch Configuration Modbus Master M2 Termination Jumper Installed M2 Termination Jumper Not Installed M2 Termination Ju...

Page 43: ...the M2 returns to normal operation because of a time out it enters a warm up period just as it does when it is first turned on 1 While in normal operation simultaneously press and hold the DOWN NO an...

Page 44: ...s network must be configured with the same baud rate and parity and each M2 must have a unique slave ID For an M2 to participate on a network the ENABLED DISABLED setting must be set to ENABLE Table 9...

Page 45: ...own on the Information Screen described on page 16 Function Code 03 Read Holding Registers There are a total of 40 registers available to be read via this Function Code Registers 1 2 The format bit fi...

Page 46: ...vity Has Occurred 8 Fail Status 0 Fail Not Asserted 1 Fail Asserted 7 6 Alarm 2 Status 0 No Alarm 1 Unacknowledged Alarm 2 Acknowledged Alarm 3 Unused Code 5 4 Alarm 1 Status 0 No Alarm 1 Unacknowledg...

Page 47: ...rminated Register 23 Register 23 is the alarm 1 trigger 0 Decreasing 1 Increasing Register 24 Register 24 is the alarm 1 normal relay state 0 Normally De Energized 1 Normally Energized Register 25 Reg...

Page 48: ...egister 35 Register 35 is calibration timeout in minutes 5 10 15 20 25 or 30 Register 36 Register 36 is calibration month upper byte and day lower byte This is zero based e g January 0 and the 1st 0 R...

Page 49: ...be used to reset an alarm condition For a complete description of Function Code 16 request Appendix C from RKI Instruments Inc Register 16 Register 16 performs the same function as the ENTER button on...

Page 50: ...ination jumper 61 0190RK CH4 CH4 LEL detector IR type 71 0289RK 65 2619RK CH4 4 M2 Transmitter Operator s Manual this document 81 0012RK 01 Calibration cylinder 50 LEL methane in air 34 liter steel 81...

Page 51: ...or Function Performed Button Combination Adjustable or Viewable Parameters Alarm Reset Press and Release ENTER n a Show Information Screen Press and Hold DOWN NO Input Voltage M2 Version Revision Inf...

Page 52: ...one or more relays are used route the connections to the M2 in conduit Use shielded cable in the conduit for the PWR SIG connections and unshielded cable or individual wires for the relay connections...

Page 53: ...A IL LEL Alarm Device Power A B C R S 485 A LAR M 2 Alarm 1 Alarm Device Fail Alarm Device Typical Alarm Wiring Shown Alarm 2 Alarm Device 24 VDC 4 20 mA In S 24 VDC 24 VDC Power Supply 24 VDC A LARM...

Page 54: ...nformation Screen described on page 16 Register 1 Register 1 is the alarm 1 set point Value must be an integer Any decimals are omitted Register 2 Register 2 is the alarm 1 trigger 0 Decreasing 1 Incr...

Page 55: ...ion Toxics and LEL 0 6 Full Scale Oxygen 0 0 7 Oxygen Value must be an integer Any decimals are omitted Register 14 Register 14 is the noise filter Integer value is in seconds 0 60 in 5 second increme...

Page 56: ...ter 19 Clear Change Flags Register 20 Register 20 is the AutoZero Disable 0 AutoZero Enabled 1 AutoZero Disabled Register 21 Register 21 is the Remote Configuration Register 0 No Remote Configuration...

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