Rki-instruments Digester Gas Monitor User Manual

www.rkiinstruments.comDigester Gas MonitorOperator’s ManualPart Number: 71-0266RKRevision: 0Released: 10/9/14

4 • Specifications Digester Gas Monitor Operator’s ManualWARNING: When using the Digester Gas Monitor, you must follow the instructions and warnings

Digester Gas Monitor Operator’s Manual Overview • 5Chapter 2: DescriptionOverviewThis chapter describes the Digester Gas Monitor’s external and inter

6 • External Description Digester Gas Monitor Operator’s Manual• Silences the buzzer during an alarm 1, alarm 2, or alarm 3 condition if the alarm bu

Digester Gas Monitor Operator’s Manual External Description • 7Compressed Air Filter/Water TrapThe compressed air filter/water trap is supplied with

8 • Internal Description Digester Gas Monitor Operator’s ManualInternal DescriptionThis section describes the internal components of the Digester Gas

Digester Gas Monitor Operator’s Manual Internal Description • 9 Figure 3: Digester Gas Monitor Component LocationHo usingMounting PlateF low Me te

10 • Internal Description Digester Gas Monitor Operator’s ManualDisplay PCBThe display PCB (printed circuit board) is mounted to the power supply mou

Digester Gas Monitor Operator’s Manual Internal Description • 11either AC or DC power.• Fail LEDThe fail LED turns on when the Digester Gas Monitor i

12 • Internal Description Digester Gas Monitor Operator’s ManualMain PCBThis section describes the components of the main PCB.Figure 5: Main PCB Comp

Digester Gas Monitor Operator’s Manual Internal Description • 13main PCB (see Figure 5 on page 12). These four 11-point terminal strips facilitate wi

Digester Gas Monitor Operator’s ManualWARNINGRead and understand this instruction manual before operating detector. Improper use of the detector coul

14 • Internal Description Digester Gas Monitor Operator’s Manual•AC Terminal StripThe 3-point AC terminal strip is located above the controller termi

Digester Gas Monitor Operator’s Manual Internal Description • 15page 68 for instructions to use the Digester Gas Monitor in a Modbus system. Ground S

16 • Internal Description Digester Gas Monitor Operator’s Manualsensors are retained in the flow block by brackets. The H2S sensor is retained by the

Digester Gas Monitor Operator’s Manual Internal Description • 17appropriate flow rate depends on the full scale range of the H2S sensor. See “Adjusti

18 • Factory Wiring Digester Gas Monitor Operator’s ManualFactory WiringThe figure below shows the factory wiring. Standard channel assignment is sho

Digester Gas Monitor Operator’s Manual Optional Horn/Strobe • 19Optional Horn/StrobeThis section describes the optional horn/strobe available for the

20 • Optional Horn/Strobe Digester Gas Monitor Operator’s ManualConfiguration Menu” on page 51).NOTE: See “Chapter 3: Installation and Start Up” on p

Digester Gas Monitor Operator’s Manual Optional Horn/Strobe • 217. Connect the plug coming from the horn/strobe to the receptacle coming from the str

22 • Overview Digester Gas Monitor Operator’s ManualChapter 3: Installation and Start UpOverviewThis chapter describes procedures to mount the Digest

Digester Gas Monitor Operator’s Manual Wiring the Digester Gas Monitor • 234. Prepare the selected mounting site as required to mount the Digester Ga

Digester Gas Monitor Operator’s ManualProduct WarrantyRKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defects in materi

24 • Wiring the Digester Gas Monitor Digester Gas Monitor Operator’s ManualFigure 12: Digester Gas Monitor External Wiring DiagramNeutralGroundLACNGR

Digester Gas Monitor Operator’s Manual Wiring the Digester Gas Monitor • 25Connecting the AC Power SourceNOTE: If you are using DC power as the prima

26 • Wiring the Digester Gas Monitor Digester Gas Monitor Operator’s Manualpage 39 for a complete description of this feature and what type of batter

Digester Gas Monitor Operator’s Manual Wiring the Digester Gas Monitor • 272. Open the housing door, then place the power switch in the OFF position.

28 • Making Fitting Connections Digester Gas Monitor Operator’s Manual6. Connect the leads from the recording device to the recorder output terminals

Digester Gas Monitor Operator’s Manual Making Fitting Connections • 29Compressed Air Inlet Fitting and Compressed Air Filter/Water Trap1. A filter/wa

30 • Making Fitting Connections Digester Gas Monitor Operator’s Manual4. Before tightening the nut, be sure to hold the fitting still from the outsid

Digester Gas Monitor Operator’s Manual Making Fitting Connections • 31Fresh Air Inlet, Dryer Exhaust, and Digester Sample Inlet Fittings1. Install th

32 • Starting Up the Digester Gas Monitor Digester Gas Monitor Operator’s ManualWARNING: The aspirator/sample exhaust may contain high levels of toxi

Digester Gas Monitor Operator’s Manual Starting Up the Digester Gas Monitor • 338. Any unused channels are configured as NOT USED in the Configuratio

Digester Gas Monitor Operator’s Manual Table of ContentsTable of ContentsChapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .

34 • Starting Up the Digester Gas Monitor Digester Gas Monitor Operator’s Manual 1. Use the regulator in the bottom left corner of the Digester Gas M

Digester Gas Monitor Operator’s Manual Overview • 35Chapter 4: OperationOverviewThis chapter describes the Digester Gas Monitor in normal operation.

36 • Normal Operation Digester Gas Monitor Operator’s ManualNOTE: If a forced detection cycle overlaps the start time of a scheduled detection cycle,

Digester Gas Monitor Operator’s Manual Normal Operation • 375. The H2S reading is taken after 90 seconds. The solenoids will click and the flow to th

38 • 4 - 20 mA Signal Output Operation Digester Gas Monitor Operator’s Manual4 - 20 mA Signal Output OperationThe output at the recorder output termi

Digester Gas Monitor Operator’s Manual Battery Charging (Optional) • 393. After the minimum and maximum readings have been displayed for about ten se

40 • Alarm Indications Digester Gas Monitor Operator’s ManualNOTE: The Digester Gas Monitor’s alarms are factory set in such a way that it is unlikel

Digester Gas Monitor Operator’s Manual Alarm Indications • 41NOTE: You can set the channel alarm relays to be either all normally energized or all no

42 • Alarm Indications Digester Gas Monitor Operator’s ManualResponding to an Alarm 1 ConditionThis section suggests the following responses to an al

Digester Gas Monitor Operator’s Manual Alarm Indications • 43begin to flash indicating the alarm condition has been acknowledged. You cannot de-energ

Table of Contents Digester Gas Monitor Operator’s ManualConnecting Recorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44 • Alarm Indications Digester Gas Monitor Operator’s ManualNOTE: The Digester Gas Monitor saves the last gas reading taken during the sample period

Digester Gas Monitor Operator’s Manual Alarm Indications • 45• the common fail relay de-energizes;• the flow to the sensors is stopped;• After the pu

46 • Alarm Indications Digester Gas Monitor Operator’s ManualGas Monitor, then connect a 24 VDC battery.2. Determine and correct the cause of primary

Digester Gas Monitor Operator’s Manual Overview • 47Chapter 5: Global MenuOverviewThis chapter describes how to view and change Digester Gas Monitor

48 • Viewing and Changing Global Parameters Digester Gas Monitor Operator’s Manual2. Press and release the UP/YES button to continue in the Global Me

Digester Gas Monitor Operator’s Manual Viewing and Changing Global Parameters • 4911. Press ENTER to save the changes and continue to the Fail Silenc

50 • Viewing and Changing Global Parameters Digester Gas Monitor Operator’s ManualNORMAL RELAY STATES(NORM DE-ENERGIZED)If set to NORM DE-ENERGIZED,

Digester Gas Monitor Operator’s Manual Overview • 51Chapter 6: Configuration MenuOverviewThis chapter describes how to view and change Digester Gas M

52 • Viewing and Changing Channel Parameters Digester Gas Monitor Operator’s Manual2. Press and release the UP/YES button to continue in the Configur

Digester Gas Monitor Operator’s Manual Viewing and Changing Channel Parameters • 53DOWN/NO button. The display will indicate that no settings have be

Digester Gas Monitor Operator’s Manual Table of ContentsRecommended Modbus Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

54 • Viewing and Changing Channel Parameters Digester Gas Monitor Operator’s ManualAlarm-1 Latching(LATCHING)If set as LATCHING, you must press the R

Digester Gas Monitor Operator’s Manual Viewing and Changing Channel Parameters • 55ALM-2 STROBE Setting(NonResettable STROBE)If set to Resettable STR

56 • Viewing and Changing Channel Parameters Digester Gas Monitor Operator’s ManualRelay-1 Assignment(ALARM-1)The alarm condition that activates rela

Digester Gas Monitor Operator’s Manual Overview • 57Chapter 7: Input Setup MenuOverviewThis chapter describes how to use the Input Setup Menu to sele

58 • Selecting the Detector Head Input Type and Gas Setup Digester Gas Monitor Operator’s Manualscroll through the choices and then press and release

Digester Gas Monitor Operator’s Manual Selecting the Detector Head Input Type and Gas Setup • 59• If you select the oxygen direct input type, the Sav

60 • Selecting the Detector Head Input Type and Gas Setup Digester Gas Monitor Operator’s Manual• Use the UP/YES or DOWN/NO button to scroll through

Digester Gas Monitor Operator’s Manual Overview • 61Chapter 8: Calibration ModeOverviewThis chapter describes how to calibrate the Digester Gas Monit

62 • Entering Calibration Mode Digester Gas Monitor Operator’s ManualEntering Calibration ModeWARNING: The Digester Gas Monitor is not an active gas

Digester Gas Monitor Operator’s Manual Performing a Calibration • 632. With SET CAL TIMEOUT displayed, press and release the ENTER button. The Calibr

Digester Gas Monitor Operator’s Manual Overview • 1Chapter 1: IntroductionOverviewThis chapter briefly describes the Digester Gas Monitor. This chapt

64 • Performing a Calibration Digester Gas Monitor Operator’s ManualPerforming a Fresh Air AdjustmentPerforming a fresh air adjustment sets the gas r

Digester Gas Monitor Operator’s Manual Performing a Calibration • 6511. If you want to perform a gas adjustment to complete the calibration, proceed

66 • Viewing Maximum Spans Digester Gas Monitor Operator’s Manual9. Repeat step 8 for each selected channel. When the last selected channel’s calibra

Digester Gas Monitor Operator’s Manual Viewing Maximum Spans • 67the detector was exposed to 50 %LEL gas. If the maximum span value is close to the c

68 • Overview Digester Gas Monitor Operator’s ManualChapter 9: RS-485 Modbus OutputOverviewThis chapter describes the Digester Gas Monitor’s RS-485 M

Digester Gas Monitor Operator’s Manual Wiring the Digester Gas Monitor in a Modbus System • 69Recommended Modbus WiringThe recommended Modbus wiring

70 • Using the Digester Gas Monitor in a 4-wire Modbus System Digester Gas Monitor Operator’s ManualFigure 22: Multiple Digester Gas Monitors in a Tw

Digester Gas Monitor Operator’s Manual Modbus Menu • 712. Press and release the UP/YES button to continue in the Modbus Menu to the Modbus Feature En

72 • Supported Modbus Functions Digester Gas Monitor Operator’s ManualNOTE: All Digester Gas Monitors on a Modbus network must be configured with the

Digester Gas Monitor Operator’s Manual Supported Modbus Functions • 73Registers 40002 - 40015, Channel 1 InformationRegister 40002Table 14 below show

2 • About this Manual Digester Gas Monitor Operator’s Manual• Chapter 10 describes the Digester Gas Monitor’s maintenance requirements and procedures

74 • Supported Modbus Functions Digester Gas Monitor Operator’s ManualRegisters 40014 - 40015The 4 bytes (characters) in registers 40014 and 40015 co

Digester Gas Monitor Operator’s Manual Supported Modbus Functions • 75Registers 40025 - 40027The 6 bytes (characters) in these registers contain the

76 • Supported Modbus Functions Digester Gas Monitor Operator’s ManualRegisters 40035 - 40038The 8 bytes (characters) in these registers contain the

Digester Gas Monitor Operator’s Manual Supported Modbus Functions • 77Register 40048Table 21 below shows the information in register 40048.Registers

78 • Overview Digester Gas Monitor Operator’s ManualChapter 10: MaintenanceOverviewThis chapter describes preventive maintenance procedures for the D

Digester Gas Monitor Operator’s Manual Troubleshooting • 79TroubleshootingTable 22 describes symptoms, probable causes, and recommended actions for t

80 • Troubleshooting Digester Gas Monitor Operator’s ManualBuzzer or Optional Horn/Strobe Not Working• The buzzer or horn/strobe does not sound an au

Digester Gas Monitor Operator’s Manual Troubleshooting • 81Flow Fail or Low Flow• The Digester Gas Monitor indicates a flow failure alarm.• The Flow

82 • Sensor Replacement Digester Gas Monitor Operator’s ManualSensor ReplacementThis section describes how to replace the sensors in the Digester Gas

Digester Gas Monitor Operator’s Manual Sensor Replacement • 839. Reinstall the preamp circuit board with the sensor onto the flow block.10. Turn the

Digester Gas Monitor Operator’s Manual Specifications • 3SpecificationsTable 1 lists specifications for the Digester Gas Monitor. Table 1: Digester

84 • Replacing the Air Filter Digester Gas Monitor Operator’s Manual9. Reinstall the preamp circuit board with the sensor onto the flow block.10. Tur

Digester Gas Monitor Operator’s Manual Replacing the Hydrophobic Filter • 85the system.Replacing the Hydrophobic FilterThis section describes how to

86 • Replacing the Oil Mist Filter Digester Gas Monitor Operator’s ManualReplacing the Oil Mist Filter1. Turn off the Digester Gas Monitor.2. Turn of

Digester Gas Monitor Operator’s Manual Replacing the Water Trap Filter Element • 879. Use needle nose pliers to press down on the collet of each conn

88 • Replacing the AC Fuses Digester Gas Monitor Operator’s Manual5. Locate the water trap. It is located along the middle left of the flow assembly.

Digester Gas Monitor Operator’s Manual Parts List • 89it in the socket.7. Plug in or turn on all incoming power to the Digester Gas Monitor.8. Place

90 • Parts List Digester Gas Monitor Operator’s Manual81-1054RK Regulator, demand-flow type (for 34-liter aluminum and 58- and 103-liter calibration