SKC PCXR4 – Universal Sampling Pump

SKC PCXR4 – Universal Sampling Pump


The SKC PCXR4 is a constant flow air sampling pump suited for a broad range of applications. With an operating range of 5 to 5000 ml/min (low flow applications of 5 to 500 ml/min require an optional adjustable low flow holder), this battery-operated air sampling pump is ideal for industrial hygiene studies as well as environmental testing. Specifically designed for “on-worker” and “fenceline” applications.

The PCXR4 from SKC means a constant flow air sample pump with wide flow range, accurate air volumes without the need for frequent pump adjustments, smooth air flow for high flow (750 to 5000 ml/min), pulseless for low flow (5 to 500 ml/min). This all for a very competetive price.

Low flow air sampling applications require the optional Adjustable Low Flow Holder (Cat. No. 224-26 series). The LCD shows the sampling time recorded at the point of shutdown. Back pressure compensation to 40 inches of water and automatically corrects to maintain a constant flow.

Features & Benefits

  • Wide 5 to 5000 ml/min constant flow range
  • Built-in low flow pressure regulator for multi-tube sampling
  • Extra rugged RFI/EMI-shielded case — CE marked
  • UL Listed for intrinsic safety
  • ATEX and MSHA-approved models available
  • Only 34 ounces (964 grams)
  • Long run times — 12+ hours at 4000 ml/min, 20 inches water back pressure
  • The solution for industrial hygiene and environmental applications
  • Three models available for a choice of features


  • Personal exposure monitoring/IH studies
  • Ambient/work area monitoring
  • Environmental sampling
  • Epidemiology health studies
  • Engineering studies
  • Asbestos monitoring
  • Fenceline Studies

Technical Specifications

Product Specification Description
Flow Control Accuracy Holds constant flow to ± 5% of set point
Timing Accuracy ± 0.05% (± 45 seconds per day)
Typical Run Time Battery: 12 hrs minimum at 4000 ml/min and 20 inches water back pressure, dependent on media used
Battery Eliminator: Pump provides extended runs. PCXR4 and PCXR8 display rolls over to 0 upon reaching 9999 min
Charge Time 6 to 8.5 hrs with PowerFlex charger (varies with battery capacity and level of discharge)
Temperature Range Operating: 32 to 113 F (0 to 45 C)
Storage: -4 to 113 F (-20 to 45 C)
Charging: 50 to 113 F (10 to 45 C)
Operating Humidity Range 0 to 95% non-condensing
Timer Display Range PCXR4 and PCXR8 only 1 to 9999 min (6.8 days)
Flow and Low Battery Fault PCXR4 and PCXR8 only Pump shuts down, timing functions pause, time display is retained, and LCD indicates flow or low battery fault.
Dimensions 5.1 x 4.7 x 1.9 in (13 x 11.9 x 4.8 cm)

Recommended Accessories

We also sell a large range of sampling media and accessories to suit the SKC sampling pumps. This includes SKC Coated Filters, Particulate Samplers and Pump Accessories.