RP-6 Pump for the GX-94 Operator’s Manual Part Number: 71-0076RK Revision: 0 Released: 11/4/02 RKI Instruments, Inc. 33248 Central Ave.
Product Warranty RKI Instruments, Inc., warrants gas alarm equipment sold by us to be free from defects in materials, workmanship, and performance for a period of one year from date of shipment from RKI Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of charge.
Table of Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Pump Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coiled Hose . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview This manual describes the RP-6 Pump. This manual also describes how to operate the RP-6 with the Model GX-94 and maintain the RP-6. A parts list at the end of this manual lists replacement parts and accessories for the RP-6. Specifications Table 1 lists specifications for the RP-6 Pump. Table 1: Specifications Power Supply 1 ea.
Description The RP-6 Pump is a sample drawing accessory for the RKI Instruments Inc. Model GX-94 Gas Monitor. It consists of the pump unit, the GX-94 sample adapter, the coiled hose, and the rubber sample nipple. Coiled Hose Thumbscrew Sample Adapter Exhaust Fitting Filter Holder Inlet Fitting (GX-7 Type) Pump Unit Power LED Low Flow LED Battery Cap Rubber Sample Nipple On/Off Switch Figure 1: RP-6 Pump Component Location Pump Unit The pump unit is housed in a red plastic case.
removed by turning it counterclockwise and pulling it away from the pump unit. Two flat membrane disk hydrophobic filters and a wire mesh disk are located in the pump unit on the filter holder end. The battery compartment is located on the other end of the pump unit. An AA alkaline battery is installed in the battery compartment and held in place by a black plastic battery cap.
Rubber Sample Nipple A cone shaped 4 inch long rubber sample nipple is included with the RP-6 and is normally installed on the inlet fitting by pushing the larger end over it. The smaller end can be inserted in a hole or some other access to an enclosed area to sample the environment. Optional Hose & Probe When desired, the rubber sample nipple may be removed and a sample hose and probe with GX-7 fittings (optional accessories) may be connected to the inlet fitting.
Operation Normal Operation 1. Start up the GX-94 and enter normal operation as described in the GX-94 manual. 2. Place the sample adapter onto the GX-94’s sensor diffusion screen aligning the thumbscrew with the threaded hole in the middle of the screen. Tighten the thumbscrew enough to hold the sample adapter firmly on the GX-94. CAUTION: If the sample adapter is not held down firmly by the thumbscrew, the unit will not respond to the target gases properly. 3.
Optional Hose Optional Probe Figure 3: Connecting the Optional Hose & Probe 4. Attach the rubber sample nipple or an optional hose and probe to the inlet fitting. 5. Attach the GX-94 to your belt or clothing using the belt clip. 6. Turn on the pump unit by turning the ON/OFF switch to the ON position. CAUTION: While the sample adapter is installed on the GX-94, the pump unit must be on and connected to the sample adapter for the GX-94 to function as a gas detection monitor. 7.
Allow the pump unit to sample for 90 seconds for a full response on the GX-94. If an optional hose and probe are used instead of the rubber sample nipple, hold the pump unit in one hand while holding the probe in the area to be sampled. To sample from a well or other similar sample area, the hose and probe may be lowered into the sample area. Allow the pump unit to sample for 90 seconds for a full response on the GX-94.
Maintenance Replacing The Battery NOTE: To maintain the CSA classification of the RP-6, use Eveready Energizer E91, Duracell MN1500, or Duracell PC1500 alkaline AA batteries. 1. Locate the black plastic battery cap on one end of the pump unit. 2. Push down and rotate battery cap counterclockwise until it stops, 1/8 of a turn. 3. Pull the battery cap away from the pump unit. 4. Remove the old battery from the pump unit. It will slide right out. 5. Insert the new battery + end first into the pump unit.
Replacing the Hydrophobic Disk Filter and Wire Mesh Disk 1. Locate the clear plastic filter holder at one end of the pump unit. 2. Grasp the two ridged sides of the filter holder and turn it about 1/8 of a turn counterclockwise. 3. Pull the filter holder away from the pump unit. Do not lose the cotton dust filter. 4. The hydrophobic disk filters and wire mesh disk are located in the pump unit and are retained by a rubber gasket. Pull out the rubber gasket with needle nose pliers.
6. Install the new hydrophobic filters and/or wire mesh disk making sure a hydrophobic filter is located on each side of the wire mesh disk. 7. Reinstall the gasket with the parts into the pump unit. 8. Reinstall the filter holder with the cotton dust filter. Align the two tabs on the bottom of the filter holder with the two slots in the pump unit. Push the filter holder into the pump unit and turn it about 1/8 turn clockwise until it snaps into place.
Parts List Table 2 lists replacement parts and accessories for the RP-6 Pump.
