RKI Instruments 35-3001A-05 Series, Operator'S Manual

Page 1: ...www rkiinstruments com 35 3001A 05 XX Carbon Dioxide Sample Draw Detector Operator s Manual Part Number 71 0340 Revision B Released 6 10 19 ...

Page 2: ...iodic calibration and maintenance of the detector is essential for proper operation and correct readings Please calibrate and maintain this detector regularly Frequency of calibration depends upon the type of use you have and the sensor types Typical calibration frequencies for most applications are between 6 and 12 months but can be required more often or less often based on your usage ...

Page 3: ...placement costs local repair costs transportation 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 OBLIGATIONS OR LIABILITIES ON THE PART OF RKI INSTRUMENTS INC INCLUDING BUT NOT LIMITED TO THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN N...

Page 4: ...ple Draw Detector to a Controller 13 Start Up 15 Introducing Incoming Power 15 Setting the Zero Reading 16 Maintenance 16 Preventive Maintenance 16 Troubleshooting 17 Replacing Components of the Carbon Dioxide Sample Draw Detector 18 Adjusting the Low Flow Setting 20 Removing the Particle Filter s Tubing Stub if Necessary 21 Calibration Frequency 22 Calibration 22 Preparing for Calibration 22 Sett...

Page 5: ...e risk of personal injury Be sure to maintain and periodically calibrate the 35 3001A 05 XX as described in this manual Table 1 Specifications Target Gas Carbon Dioxide CO2 Detection Range 35 3001A 05 02 0 5 000 ppm parts per million 35 3001A 05 03 0 5 volume 35 3001A 05 05 0 50 volume 35 3001A 05 10 0 100 volume Input Power 24 VDC Nominal 18 5 VDC 30 VDC Construction housing Fiberglass polyester ...

Page 6: ...low B lock Pump Connector W L EL G B R IR CO2 Sensor PCB Pilot LED Fail LED Sensor Flow Control Valve Pump Reset Switch Flowmeter B G W Interconnect Terminal Strip S AMP 1 AMP 2 W G OXY S R Hydrophobic Filter Particle Filter Flowmeter Circuit Board Connector LEL IR IR CO2 Sensor inside block Inlet Fitting Exhaust Fitting This End To Inlet Fitting 3 4 Conduit Hub INLET EXHAUST IR Amplifier AMP 2 AM...

Page 7: ...fittings accept 1 4 in rigid tubing See the Installation section on page 11 to connect tubing to the sample fittings Particle Filter A particle filter with a tubing stub on one end is shipped with the instrument but it is not factory installed If the particle filter is installed directly to the inlet fitting the tubing stub must be used If the particle filter is installed somewhere else like at th...

Page 8: ... the pump connector to connect the pump to the main circuit board NOTE The pump is factory wired to the main circuit board See Installation on page 11 for all wiring procedures related to the sample draw detector Flowmeter Circuit Board Connector The flowmeter circuit board connector is a six position connector in the upper left corner of the main circuit board Use the flowmeter circuit board conn...

Page 9: ...eset the low flow condition and start the pump again press and hold the pump reset switch for about 2 seconds then release Hydrophobic Filter The hydrophobic filter is located toward the bottom left of the main circuit board The filter prevents particulates and water in the incoming gas sample from damaging the flow and detection systems Replace the filter when it appears dirty discolored or clogg...

Page 10: ...just the amplifier s gas response output during the calibration procedure Turn the adjustment screw clockwise to increase the span output and counterclockwise to decrease the span output CAUTION The amplifier includes additional pots They are factory set Do not adjust them Controller and Detector Terminal Strips The controller terminal strip and detector terminal strip are three and four position ...

Page 11: ...llowing when you select the mounting site Is there enough room to open the housing door and make wiring and tubing connections at the bottom of the housing Make sure there is sufficient room to perform start up maintenance and calibration procedures Are the flowmeter and status LEDs visible Figure 4 Outline and Mounting Dimensions Ø 30 x 50 4X MOUNTING 78 1 13 40 Pilot Fail 85 80 4 50 NOTE Housing...

Page 12: ...filter and route it to the sampling area 1 4 O D rigid polypropylene Teflon or flexible polyurethane tubing may be used RKI Instruments Inc recommends using either 1 4 O D x 1 8 I D or 1 4 O D x 0 170 I D tubing based on your length requirements See Specifications on page 5 for maximum tubing lengths based on tubing size CAUTION If you use flexible sample tubing polyurethane is acceptable use an a...

Page 13: ...t on the exhaust fitting so the ferrules clamp on the tubing If the tube nut is removed see Figure 6 for the arrangement of the fitting components 4 Route the opposite end of the tubing to an open area where the sample can safely disperse or to an exhaust duct See Specifications on page 5 for maximum tubing lengths based on tubing size Wiring the Carbon Dioxide Sample Draw Detector to a Controller...

Page 14: ...g the Sample Draw Detector to a Controller 9 If shielded cable is used connect the cable s drain wire to an available chassis earth ground at the controller RKI controllers typically have a ground stud that can be used to ground the cable s drain wire Not Used on This Version ZE RO S P WR SI G SP AN OXY LEL IR Green Black Red White P A T S 2 0 1 P A T S 2 0 1 AMP 1 AMP 1 OXY LEL IR 24 VDC Controll...

Page 15: ...er s 4 20 mA signal should be stable by the time the controller s warmup period is over 6 Verify that the flowmeter indicates a flow rate of approximately 1 0 SCFH If necessary use the sensor flow control valve to adjust the flow rate Turn the valve s knob counterclockwise to increase the flow and clockwise to decrease the flow NOTE The following step tests for leaks in the sample line This test w...

Page 16: ... the voltmeter leads from the test points 11 Close the housing door Maintenance This section describes maintenance procedures It includes preventive maintenance procedures This section also includes procedures to troubleshoot the sample draw detector replace components of the sample draw detector adjust the low flow setting and remove the particle filter s tubing stub Preventive Maintenance This s...

Page 17: ...ng connections 4 Calibrate the sample draw detector as described in Calibration on page 22 5 If the fail condition continues replace the sensor as described in Replacing the Infrared Carbon Dioxide Sensor on page 18 6 If the fail condition continues contact RKI Instruments Inc for further instruction Slow or No Response Difficult or Unable to Calibrate Symptoms Unable to accurately set the zero or...

Page 18: ... sensor and sensor PCB in the carbon dioxide sensor cavity 8 Secure the sensor PCB on the flow block with the screws you removed in step 4 9 Turn on power to the controller and place it into normal operation 10 Turn on the controller CAUTION Allow the replacement sensor to warm up for 5 minutes before you continue 11 Calibrate the replacement sensor as described in Calibration on page 22 Replacing...

Page 19: ...d in Calibration on page 22 of this manual Replacing the Hydrophobic Filter 1 Turn off the controller 2 Turn off power to the controller 3 Open the housing door of the sample draw detector 4 Disconnect the filter from the rubber elbows on each end of the filter then remove the filter from the sample draw detector 5 Install the new filter Be sure the side of the filter marked INLET is connected to ...

Page 20: ... factory set low flow setting is 0 6 SCFH 0 1 To adjust the low flow setting 1 Use the sensor flow control valve to set the flow to 0 6 SCFH Turn the valve s knob counterclockwise to increase the flow and clockwise to decrease the flow If the sample draw detector goes into low flow alarm before you can adjust the flow down to 0 6 SCFH adjust the pressure switch adjustment screw 1 4 turn clockwise ...

Page 21: ...me out with the tube nut Be careful not to lose the O ring that may come out with the tubing stub If you do lose the O ring or if it is damaged see Parts List on page 24 for the spare part number 3 Push the tubing stub up and out of the front ferrule being careful not to lose the ferrule set If you do lose the ferrule set or if it is damaged see Parts List on page 24 for the spare part numbers 4 P...

Page 22: ...n the controller s operator s manual for entering calibration mode 2 Open the housing door 3 Set a voltmeter to measure in the millivolt mV range 4 Plug the positive lead into the red amplifier test point plug the negative lead into the black amplifier test point labeled 5 Use the following formula to determine the correct test points output for the calibrating sample Output mV calibrating sample ...

Page 23: ...e response reading 2 mV you determined earlier 5 If necessary use the span potentiometer on the amplifier to adjust the reading to match the correct response reading 6 Disconnect the sample tubing from the inlet line 7 Unscrew the regulator from the carbon dioxide calibration cylinder Returning to Normal Operation 1 Wait approximately one minute to allow the carbon dioxide reading to stabilize 2 R...

Page 24: ...olume 61 5040RK 10 IR CO2 sensor 0 100 volume 71 0340 Operator s Manual 35 3001A 05 XX Sample Draw Detector 81 0070RK 01 Calibration cylinder 2000 ppm CO2 in nitrogen 34 liter steel 81 0070RK 03 Calibration cylinder 2000 ppm CO2 in nitrogen 103 liter 81 0072RK 01 Calibration cylinder 2 5 CO2 in nitrogen 34 liter steel 81 0072RK 03 Calibration cylinder 2 5 CO2 in nitrogen 103 liter 81 0073RK 01 Cal...