SKC 224-PCXR8 Operating Instructions Manual
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SKC 224-PCXR8 Operating Instructions Manual

Universal sample pump
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Operating Instructions

Universal Sample Pump
Cat. No. 224-PCXR8
SKC Inc.
863 Valley View Road
Eighty Four, PA 15330
Form 37713 Rev 1302

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Summary of Contents for SKC 224-PCXR8

  • Page 1: Operating Instructions

    Operating Instructions Universal Sample Pump Cat. No. 224-PCXR8 SKC Inc. 863 Valley View Road Eighty Four, PA 15330 Form 37713 Rev 1302...

  • Page 2: Table Of Contents

    Table of Contents Description ..............1 Performance Profi le ..................2 Operation ................ 5 High Flow Applications ................... 5 Low Flow Single-tube Applications ............... 10 Low Flow Multiple-tube Applications ............15 Maintenance ..............20 Pump Inlet Filter ................... 20 Battery Pack Care ..................20 Installing the Battery Pack ................

  • Page 3: Description

    Description The PCXR8 Universal Sample Pump is a constant fl ow air sampler suitable for a broad range of applications. It is ideal for industrial hygiene studies as well as environmental testing. Durable RFI-shielded Case provides protection from radio Low Flow Regulator frequency interference (beneath cap screw) between 27 and 1000 MHz.

  • Page 4: Performance Profi Le

    UL Listed for: Class I, Division 1 and 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F, G; and Class III, Temperature Code T3C ATEX-approved models available. Contact SKC. Operating: 32 to 113 F (0 to 45 C)
  • Page 5 Flow Fault: If the pump is unable to compensate for longer than 15 seconds due to exces- sive back pressure, the pump enters fl ow fault. During fl ow fault, the pump stops, displays FLOW FAULT, pauses timing functions, and displays elapsed time or pump time.
  • Page 6 Table 1. Pump Run Time in Hours with NiCad Battery Following are typical run times achieved when using a fully charged nickel- cadmium (NiCad) battery pack. Data is sorted by type of sample media. All run times are listed in hours. Results obtained using a new pump and new fully charged battery.

  • Page 7: Operation

    Short-circuiting the battery pack will render it immediately inoperative. Failure to follow warnings and cautions voids any warranty. Charger and battery The battery pack may be kept on the SKC-approved charger pack connected for an indefi nite time.
  • Page 8 De-activating the Regulator To ensure the pump is set for high fl ow, remove the cap screw (Figure 1, #18) covering the regulator valve and turn the exposed screw clockwise until it stops. (Do not overtighten.) Replace the cap screw. The pump is For high fl...
  • Page 9 Programming Delayed and Intermittent Sampling To enter Delayed Start Mode: From Hold, press Set-up. Enter the number of minutes delay (up to 9999) before the sampling period begins by pressing Digit Select and Digit Set. Digit Select advances the fl ashing digit and Digit Set increases the value of the fl...
  • Page 10 Set the Pump Period for less time than the Sample Period to initiate intermittent sampling. The pump will automatically cycle “on” and “off” at one-minute intervals adjusting the fi nal “on” or “off” time to as many minutes as needed to reach the total programmed time. If intermittent sampling is not desired, set the Sample Period to equal the Pump Period.
  • Page 11 User Options During Sampling Pause - Pause (shutdown) the pump by pressing Start/Hold. All timing data will freeze. To resume sampling, press Start/Hold; timing data will resume. Flow or Battery Fault Shutdown - If the pump is unable to compensate due to excessive back pressure or a low battery condition exists the sampler will shut down.

  • Page 12: Low Flow Single-Tube Applications

    Short-circuiting the battery pack will render it immediately inoperative. Failure to follow warnings and cautions voids any war- ranty. Charger and battery The battery pack may be kept on the SKC-approved charger pack connected for an indefi nite time.
  • Page 13 Activating the Regulator Remove the tamper-resistant cover. Start the pump using the On/Off switch (Figure 1, #8). Press Start/ Hold (Figure 1, #3). Press Flow and Battery Check (Figure 1, #2). Adjust the fl ow using the fl ow adjustment screw (Figure 1, #11) until the built- in rotameter reads 1.5 L/min.
  • Page 14 Setting or Verifying Flow Rate For a diagram of the pump, see Figure 1, page 5. 1 Flow adjust screw 2 Rubber sleeve  3 Sorbent tube  Figure 2 Single Adjustable  Low Flow Holder with sample tube Before use, allow pump to equilibrate after moving it from one temperature extreme to another.
  • Page 15 When the desired fl ow is set, place the pump in Hold by pressing Flow and Battery Check. Disconnect the calibrator. Replace the sorbent tube used for setting the fl ow with a new unexposed sorbent tube for sample collection. Place the appropriate size tube cover over the tube, and screw it (cont’d) into place on the low fl...
  • Page 16 Set the Pump Period for less time than the Sample Period to initiate intermittent sampling. The pump will automatically cycle “on” and “off” at one-minute intervals adjusting the fi nal “on” or “off” time to as many minutes as needed to reach the total programmed time. If intermittent sampling is not desired, set the Sample Period to equal the Pump Period.

  • Page 17: Low Flow Multiple-Tube Applications

    Short-circuiting the battery pack will render it immediately inoperative. Failure to follow warnings and cautions Charger and battery voids any warranty. pack connected The battery pack may be kept on the SKC- approved charger for an indefi nite time.
  • Page 18 Setting or Verifying Flow Rate When performing multiple-tube sampling using an adjustable low fl ow holder (dual, tri, or quad), ensure the regulator has been activated and the pump fl ow rate is set at 1.5 L/min. The maximum fl ow rate through any one tube is 500 ml/min*.
  • Page 19 Turn the fl ow adjust screw (Figure 3, #2) for the appropriate port of the low fl ow holder until the desired fl ow rate is achieved. Turn clockwise to decrease the fl ow. Do not adjust the fl ow on the pump. Adjust the fl ow only by using the fl...
  • Page 20 Programming Delayed and Intermittent Sampling To enter Delayed Start Mode: From Hold, press Set-up. Enter the number of minutes delay (up to 9999) before the sampling period begins by pressing Digit Select and Digit Set. Digit Select advances the fl ashing digit and Digit Set increases the value of the fl...
  • Page 21 “off” at one-minute intervals adjusting the fi nal “on” or “off” time to as many minutes as needed to reach the total programmed time. If intermittent sampling is not desired, set the Sample Period to equal the Pump Period. Pressing Mode will scroll through the program sequence. (cont’d) For intermittent sampling, the elapsed time maximum is 9999 minutes (6.8 days), at which time the sample pump will shut down.

  • Page 22: Maintenance

    Improper orientation/contact will short-circuit the battery and voids any warranty. Short-circuiting the battery pack will render it immediately inoperative. Failure to follow warnings and cautions voids any warranty. The battery pack may be kept on the SKC-approved charger for an indefi nite time.

  • Page 23: Installing The Battery Pack

    Installing the Battery Pack To enhance battery life, SKC ships battery packs separate from the pump. Once installed, completely charge battery pack before operating pump. 1. Loosen the two case screws above and below the belt clip. 2. Slip the front edge of the battery pack under the belt clip and position battery pack to engage the grooves in the case.

  • Page 24: Pump Service

    Do not charge or operate the pump from the charger in hazardous loca- tions! Use only an SKC-approved charger and battery pack designed for the Uni- versal Sample Pump to ensure reliable performance. Failure to do so voids any warranty and UL Listing for intrinsic safety.
  • Page 25 This page is intentionally blank.

  • Page 26: Parts Descriptions

    Parts Descriptions Use only SKC-approved parts to ensure reliable performance. Failure to do so voids any warranty and UL Listing for intrinsic safety. See page 25 for drawing. Description LCD indicates all sampler functions. FLOW AND BATTERY CHECK Key allows fl ow rate setting and battery condition testing.
  • Page 27 224-PCXR8 Sample Pump See page 24 for parts listing. AIRCHEK SAMPLER LISTED 124U SAMPLE PERIOD Ñ MINUTES FLOW START BATTERY HOLD CHECK SET-UP MODE AIRCHEK SAMPLER MODEL 224-PCXR8 DIGIT DIGIT SELECT PUMP TOTAL ELAPSED TIME TIME FLOW FRONT BACK...

  • Page 28: Replacement Parts

    Replacement Parts See drawings on page 27. Pump Case Parts P21411 Case Parts (Excluding Battery Case) P21661MH Battery Pack Assembly, NiMH P21661 Battery Pack Assembly, NiCad P22417BC Belt Clip with screws P22433P Keyboard Assembly P22433R Cap Screws (set of 2) P22433U Control Board P22433RS2...
  • Page 29 See page 26 for replacement parts listing. P22433P P22417C P22433U P22433R P21661MH or P21411 P21661 P22433RS2 (does not include P22417BC fl owmeter and fi lter housing assemblies Pump Case Parts or motor) P22417J P22417K P22433L P22417D P22417F P22433RS2 P22417G (does not P22417HC include fl...

  • Page 30: Optional Accessories

    224-29A B, 110 mm, large charcoal 224-29B C, 150 mm 224-29C D, 220 mm 224-29D Battery Maintenance PowerFlex Charging System for SKC Personal Pumps 5-station, 100-240 V 223-1000 Single, 100-240 V 223-2000 PowerFlex Cable, for Universal XR models 223-1002 Replacement Battery Pack, NiMH...

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