Low Flow Sample Pump 222 Series Operating Instructions SKC Inc.
Table of Contents Description ........................................................................................... 1 Performance Profile ............................................................................ 2 Battery Installation/Charging ............................................................. 3 Installing the Battery Pack ......................................................................................... 3 Charging the Battery ......................................................
Description SKC 222 Series Low Flow Pumps are miniature diaphragm-type pumps for personal or area sampling of gases and vapors in air using sorbent tubes or sample bags. These reliable lightweight pumps are motor-operated and powered by a rechargeable battery pack. Featuring reliable stroke counter technology, the pump's stroke counter indicates the number of times the pump's diaphragm has pulsed (or stroked) during the sampling period.
Performance Profile Flow Rate: 222-3: 222-4: Operation Time: 10 hrs per battery charge Case: Sturdy, lightweight plastic Battery: Rechargeable NiCad, 2.4 V Charge Time: (varies with battery capacity and level of discharge) 6 to 8.
Battery Installation/Charging Installing the Battery Pack To enhance battery life, SKC ships the battery pack separate from the pump. Once installed, completely charge the battery pack before operating the pump. It may be necessary to charge the battery a few times before maximum capacity is achieved. 1. Using a Phillips head screwdriver, remove six screws from the back of the pump case. 2. Insert the battery pack inside the pump case with the label facing up. 3.
Operation Setting the Sampling Rate 1. Using a slotted screwdriver, remove the metal plate on the front of the pump. 2. Use the screwdriver to turn the flow adjust dial. Turning the dial clockwise toward the 100 position increases flow, turning it counterclockwise toward the 0 position decreases flow. The scale on the dial is arbitrary. Measuring Flow Rate Before use, allow pump to equilibrate after moving it from one temperature extreme to another. 1.
Determining the Pump Factor To determine the relation between the counter and the pump volume: 1. Using flexible tubing, connect the pump inlet to the outlet of a film flowmeter. 2. Turn on the pump. 3. Turn the flow adjust dial to set the pump flow rate to 100 ml/min. 4. Turn off the pump. 5. Record the counter reading. 6. Turn on the pump and allow the pump to run for one minute. 7. Turn off the pump. Record the counter reading. 8. Subtract the first counter reading from the second reading.
Maintenance Checking for Leaks To function properly and provide correct pumping volume, the diaphragm must be free from leaks and close positively. Remove cover plate and check the following: Intake Valves 1. To check the intake valves for leaks, connect a water manometer and a tee connection to the pump inlet as shown in Figure 1 below. Outlet Open end (exhaust) of tee Inlet Back of Pump Figure 1. Water manometer 2.
Changing the Battery 1. Remove the six screws on the back of the pump case. 2. Grasp the white connector and pull it apart. 3. Gently pull the battery pack from the case. Do not pull on red and black wires. 4. Remove the old battery pack and replace with the new battery pack. 5. Place the new battery pack inside the pump case with the label facing up. 6. Grasp the white connector from inside the pump case and the white connector from the battery.
Replacement Parts and Accessories Part Description Cat. No.
SKC Limited Warranty and Return Policy SKC products are subject to the SKC Limited Warranty and Return Policy, which provides SKC’s sole liability and the buyer’s exclusive remedy. To view the complete SKC Limited Warranty and Return Policy, go to http://www.skcinc.com/ warranty.asp. SKC pumps must be repaired by SKC or an authorized SKC repair center. Failure to do so voids intrinsic safety approvals and any warranty. Use only SKC-approved parts to ensure reliable performance.
