30-0951RK-01, 30-0951RK-HS-01,
30-0951RK-OC-01, and 30-0951RK-IR-01
Flow Through Adapters
Part Number: 71-0281RK
Revision: P1
Released: 6/3/13
www.rkiinstruments.com
Description
1/4 inch OD Tube
Sample Exhaust
Fitting
Sensor Chamber
O-Ring
Sensor Adapter
Sens or Chamber
Thumbscrew,
3x
Sensor Adapter
O-Ring/Gasket
3.20 max
2.57
3.27
Screw Onto Sensor
1/4 inch OD Tube
Sample Inlet Fitting
Installation
The attached detector head operator’s manual can be used in conjunction with this
supplement for the 30-0951RK-01, 30-0951RK-HS-01, 30-0951RK-OC-01, or the
30-0951RK-IR-01 flow through adapter. The flow through adapter includes a sensor
adapter and a sensor chamber with two compression fittings. A sensor adapter gasket
seals to the 1/ 2” NPT combust ible sens or wh en i nstal led. A sens or ada pter O -ring seal s to
all other types of detectors when installed . This O-ring is different for different types of
detectors. A detector chamber O-ring seals the sensor chamber to the sensor adapter. This
O-ring is the same for all versions. Calibration instructions are the same as those outlined
in the attached detector head manual with the exception that the calibration ga s must be
connected either to the inlet fitting tubing or pump inlet as opposed to a calibration cup.
Installation instructions are slightly different and are outlined below.
1
Figure 1: Outline and Mounting Dimensions/Component Location
1. The flow through adapter is normally shipped in stalled to the detector. If it is not
installed, screw the flow through adapter onto the detector tightening firmly by hand.
CAUTION: Make sure the flow through adapter is installed tightly and after installation is
complete, verify that the flow through adapter is still tightened firmly onto the
detector to avoid possible leaks.
2. If necessary, re-orient the sensor chamber so the inlet fitting faces away from the
mounting surface by unscrewing the three thumbscrews, rotating the sensor chamber,
and tightening the three thumbscrews.
3. Install and startup the detector head as described in the detector head operator’s
manual. Make sure there is sufficient room between the detector and the mounting
surface for the flow through adapter.
4. The inlet and exhaust fittings accept 1/4” OD rigid metal tubing such as copper,
Calibration
aluminum, or stainless steel. The inlet fitting is located on the side of the sensor
chamber and the exhaust fitting is located on the bottom. Insert the desired length of
tubing into each fitting and tighten the fittings so that the ferrules crimp onto the
tubing.
5. Install appropriate device(s) (pump, aspirator, etc.) to dra w sample to the detector.
NOTE: Be sure to use the inlet and exhaust ports as intended to ensure correct sensor
response and to allow any accumulated liquid to drain out the bottom of the flow
through adapter.
6. Calibrate the detector head as described in the attached manual and in the next
section.
NOTE: Calibrate the detector head with the flow through adapter installed to ensu re an
accurate reading.
A demand flow regulator should be used for calibration.
1. Follow the calibration instructions outlined in the attached detector head manual.
2. When the instructions call for applying gas, connect the cylinder.
• If you are drawing sample through the system, connect the cylinder to the inlet
fitting of the flow through adapter.
• If you are pushing sample through the system, connect the cylinder to the pump
inlet.
3. Perform a calibration as outlined in the attached detector head manual.
4. When the instructions call for removing the gas, disconnect the cylinder.
2
Parts List
Part Number Description
See the table below for spare parts not listed in the attached detector manual.
Table 1: Parts List
07-0107RK Gasket, 0.75 OD x 0.58 ID x 0.093 thick, for 1/2” NPT combustible
sensor adapter
07-7120RK O-ring, 0.987 ID x .103, buna, for O
07-7218RK O-ring, 0.734 x .139, buna, for IR and H
/CO sensor adapter
2
S sensor adapters
2
07-7225RK O-ring, 1.243 ID x .139, buna, for sensor chamber
13-1070RK Captive panel screw, 10-32 x 1.75
81-1054RK R e gulator, demand flow, for 58- and 103-liter calibration cylinders
81-1055RK Re gulator, demand flow, for 17- and 34-liter calibration cylinders
3
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