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20 • 35-3010RK-05 Sample-Draw Detector

NOTE:

For convenience, leave the regulator connected to the sample tubing.

Returning to Normal Operation

Remove the voltmeter leads from the test points.

Reconnect the incoming sample line.

Wait 1 to 2 minutes to allow the calibration gas to be drawn out and the reading to
stabilize.

Close the housing door.

Store the components of the calibration kit in a safe and convenient place.

Parts List

Table 2 lists replacement parts and accessories for the sample draw gas detector.

Table 2: Parts List

Part Number

Description

06-1248RK

Sample tubing, 3/16 x 5/16, specify length, (for calibration kit)

07-0034RK

Sealing gasket for CO flow block cavity

30-0610RK

Pump

33-0171RK

Hydrophobic filter (AcroPak)

33-6095RK

Charcoal filter, CF-188

65-0601RK

Oxygen sensor

81-0076RK-01

Zero air calibration cylinder (34 liter)

81-0090RK-01

3-gas calibration gas cylinder, 50% LEL methane/12% oxygen/50
ppm CO, 34 liter

81-0155RK

Regulator, demand flow, for 17 and 34 liter steel cylinders

ES-1531-CO

CO sensor

Содержание 35-3010RK-05

Страница 1: ...www rkiinstruments com 35 3010RK 05 Sample Draw Detector Part Number 71 0210RK Revision C Released 6 5 17 ...

Страница 2: ...ic 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 3 and 6 months but can be required more often or less often based on your usage ...

Страница 3: ...cement 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 NO E...

Страница 4: ... Setting the Zero Reading 12 Operation 13 Normal Operation 13 Low Flow Alarm 13 Maintenance 13 Preventive Maintenance 13 Troubleshooting 14 Replacing Components of the Sample Draw Detector 15 Adjusting the Low Flow Setting 16 Calibration Frequency 17 Calibration Oxygen Detector 17 Setting the Zero Reading 18 Setting the Fresh Air Reading 18 Returning to Normal Operation 18 Calibration CO Detector ...

Страница 5: ...ollow the instructions and warnings in this manual to assure proper and safe operation of the 35 3010RK 05 and to minimize the risk of personal injury Be sure to maintain and periodically calibrate the 35 3010RK 05 as described in this manual Table 1 Specifications Target Gases Detection Ranges Oxygen 0 25 Carbon Monoxide CO 0 300 ppm Input Power 24 VDC Current Draw 200 mA Construction housing Fib...

Страница 6: ...ent is in use The housing door is hinged on the left side and is secured by two latches on the right side Four mounting feet are attached to the back of the housing one at each corner Use the mounting feet to install the housing to a vertical surface Use the two conduit hubs on the bottom of the housing to make wiring connections Amp 2 H2S Dummy Plug Preamp Circuit Board Flow Block Amp 1 Hydrophob...

Страница 7: ...he INLET fitting on the bottom of the housing allows the gas sample to enter the sample draw detector The INLET fitting accepts 1 4 in rigid tubing See Installation on page 8 for instructions to connect tubing to the INLET fitting Hydrophobic Filter The hydrophobic filter is to the left of the main circuit board It is held in place by a metal clip It prevents water and other liquids from contamina...

Страница 8: ...tector will operate down to a flow of 0 6 SCFH the optimum flow rate is 1 2 SCFH Bypass Valve The bypass valve is to the left of the flowmeter The bypass valve adjusts the flow rate to the sensor Use a flat blade screwdriver to adjust the bypass valve NOTE The bypass valve allows fine adjustments of the flow rate For a wider range of adjustment use the flow adjust potentiometer see Figure 1 Status...

Страница 9: ...e of the sample draw detector The signal from the sensor is sent to a controller Connector The cable that extends from the sensor terminates in a socket that plugs into a matching 7 pin male connector The socket and connector allow you to replace the sensor without disconnecting the wiring The sensor leads are soldered to the male connector Sensor Leads Two color coded leads extend from the connec...

Страница 10: ...ple draw detector to the controller Sensor Transmitter Terminal Strip The sensor transmitter terminal strip is the sixteen point terminal strip near the right edge of the circuit board Use the sensor transmitter terminal strip to connect sensors or transmitters to the main circuit board NOTE The sensors are factory wired to the sensor transmitter terminal strip See Wiring the Sample Draw Detector ...

Страница 11: ...erminal strip is the four point terminal in the top left corner of the circuit board Use the pump terminal strip to connect the pump and pressure switch to the main circuit board NOTE The pump and pressure switch are factory wired to the circuit board See Wiring the Sample Draw Detector on page 9 for all wiring procedures related to the sample draw detector Relay The relay is approximately in the ...

Страница 12: ...re there is sufficient room to perform start up maintenance and calibration procedures Figure 4 Mounting the Sample Draw Detector 2 Close and latch the housing door NOTE The sample draw detector is shipped with the mounting feet tucked under the housing to protect the mounting feet during shipment 3 Slightly loosen the screw that secures one of the mounting feet to the housing then rotate the moun...

Страница 13: ... Draw Detector WARNING Always verify that the power source is OFF before you make wiring connections 1 Turn off the controller 2 Turn off or unplug incoming power to the controller 3 Unlatch and open the housing door of the sample draw detector 4 Guide a five conductor 18 gauge shielded cable or five 18 gauge wires in conduit through one of the conduit hubs at the bottom of the sample draw housing...

Страница 14: ...Draw Detector Figure 5 External Field Wiring Sample Draw Detector Interconnect Terminal Strip G 24 VDC CO Controller Transmitter Terminals Controller Oxygen Terminals 24 VDC S 4 20 mA W Main Circuit Board Sample Draw Housing ...

Страница 15: ...le Draw Detector 11 Figure 6 Internal Factory Wiring Sample Draw Detector White Pressure Switch Factory Wired Pump Factory Wired Oxygen Sensor Green CO H2S Not Used CO Sensor Plugs Into Far Side of Preamp Circuit Board ...

Страница 16: ...le line is not leaking 8 Remove your thumb from the sample line press the pump reset switch and verify the flowmeter returns to a normal flow rate Setting the Zero Reading CAUTION If you suspect the presence of combustible gas toxic gases or an abnormal oxygen condition not 20 9 in the monitoring environment use the calibration kit and the zero air calibration cylinder to introduce fresh air to th...

Страница 17: ...et switch A flow reduction can be caused by a flow blockage a leak in the flow system a malfunctioning pressure switch or a malfunctioning pump 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 and adjust the low flow se...

Страница 18: ...e Calibration section of this manual 4 Remove the calibration tubing from the inlet line then reconnect the inlet line 5 Store the calibration kit in a safe place Quarterly Calibrate the sample draw detector as described in the Calibration section Troubleshooting The troubleshooting guide describes symptoms probable causes and recommended action for problems you may encounter with the sample draw ...

Страница 19: ... cylinder is low out dated or defective The sample draw detector s flow rate is too low because of an obstructed sample line failed pump etc The sample draw detector is malfunctioning Recommended Action 1 Verify that the calibration cylinder contains an adequate supply of a fresh test sample 2 If necessary set the correct flow rate with the bypass valve or flow adjust potentiometer 3 If you cannot...

Страница 20: ...w block 8 Turn on incoming power 9 Calibrate the replacement sensor as described in Calibration CO Detector on page 18 Replacing the Hydrophobic Filter 1 Turn off or unplug power to the controller 2 Locate the hydrophobic filter It is just to the left of the main circuit board 3 Grasp the hydrophobic filter and pull it out of its metal clamp 4 Remove the rubber seals from each end of the hydrophob...

Страница 21: ...ector If an application is not very demanding for example detection in a clean temperature controlled environment and calibration adjustments are minimal at calibration then a calibration frequency of every 6 months is adequate for the sample draw detector If the application is very demanding for example if the environment is not well controlled then more frequent calibration than every 3 months m...

Страница 22: ... normal oxygen content 20 9 it is necessary to use a zero air cylinder when setting the zero reading 1 Open the housing door 2 The fresh air reading for the oxygen channel is set at the controller See the controller operator s manual for instructions to set the zero reading 3 When the instructions call for applying gas to the detector make sure the inlet line is sampling fresh air 4 Allow the dete...

Страница 23: ... air cylinder 2 Connect the calibration kit sample tubing to the regulator 3 Connect the sample tubing from the regulator to the inlet line at or near the INLET fitting 4 Allow the gas to flow for 1 minute 5 Verify a voltmeter reading of 100 mV 2 mV at the AMP 1 test points for the CO channel as described in the Preparing for Calibration section above 6 If necessary use a small flat blade screwdri...

Страница 24: ...onvenient place Parts List Table 2 lists replacement parts and accessories for the sample draw gas detector Table 2 Parts List Part Number Description 06 1248RK Sample tubing 3 16 x 5 16 specify length for calibration kit 07 0034RK Sealing gasket for CO flow block cavity 30 0610RK Pump 33 0171RK Hydrophobic filter AcroPak 33 6095RK Charcoal filter CF 188 65 0601RK Oxygen sensor 81 0076RK 01 Zero a...

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