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  Home » Catalog » Pumps/Calibrators/Accessories » Air Sampling Pumps to 5 L/min » Universal PCXR4 (5 to 5000 ml/min)

Universal PCXR4
5 to 5000 ml/min


Orderable Items The Universal PCXR4 personal or area air sampling pump features a 5 to 5000 ml/min flow range, timer, flow fault, and up to 12-hour run times for sampling particulates and gases/vapors. The pump is ideal for use with sorbent tubes, filter cassettes, size-selective samplers, sample bags, and impingers.
The Universal PCXR4 air sampling pump is UL Listed for intrinsic safety.



 

Performance Profile
Operating Range

1000 to 5000 ml/min (UL Listed model)
(5 to 500 ml/min requires the 224-26 Series adjustable tube holder)
Requires 1/4-inch ID tubing

Weight
34 oz (964 gm)
Dimensions
5.1 x 4.7 x 1.9 in (13 x 11.9 x 4.8 cm)
Compensation Range
1000 to 2500 ml/min at 40 inches water back pressure
3000 ml/min at 35 inches water back pressure
4000 ml/min at 20 inches water back pressure
5000 ml/min at 10 inches water back pressure
Typical Back Pressure
See Table 1.
Flow Control
Holds constant flow to ± 5% of set-point
Run Time: Battery
NiCad Battery: 8 hrs minimum at 4000 ml/min and 20 inches water back pressure; dependent on media used. See Table 3
NiMH Battery: 12 hrs minimum at 4000 ml/min and 20 inches water back pressure; dependent on media used. See Table 2.
Battery Eliminator: Pump provides extended runs.
Run Time: Mains Adapter
9999 minutes (6.8 days). Pump will shut off as run time cannot exceed timer display. See Timer Display Range below.
Tubing Requires 1/4-inch ID tubing
Timer Display Range
1 to 9999 minutes (6.8 days). Pump will shut off at 9999 minutes. To reset, restart the pump.
Flow Indicator
Built-in rotameter with 250-ml division; scale marked at 1, 2, 3, 4, and 5 L/min
Power Supply
6.0-V plug-in NiMH battery pack, rechargeable, 3.5-Ah capacity or
6.0-V plug-in NiCad battery pack, rechargeable, 2.0-Ah capacity
A battery eliminator is available (see Ordering Information); use voids the UL Listing for intrinsic safety.
Charging Time
(varies with battery capacity and level of discharge)
6 to 8.5 hrs with PowerFlex Charger
Intrinsic Safety

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 model is available. Contact SKC.

Operating Temperature
32 to 104 F (0 to 40 C)
Storage Temperature
-4 to 113 F (-20 to 45 C)
Charging Temperature
50 to 113 F (10 to 45 C)
Operating Humidity
0 to 95% non-condensing
Flow Fault
If the pump is unable to compensate for longer than 15 seconds due to excessive back pressure, the pump enters flow fault. During flow fault, the pump stops, displays FLOW FAULT, pauses timing functions, and displays elapsed time. Auto-restart is attempted up to 5 times.
Low Battery Fault
Pump stops, displays LO BATT, pauses timing functions, and displays elapsed time.
Battery Test
LCD indicator verifies battery condition prior to sampling.
Time Display
LCD displays up to 9999 minutes (6.8 days) at which point the display rolls over to 0.
Timing Accuracy
± 0.05% (± 45 sec/day)
Sampling Pause (Hold)
Allows user to temporarily halt air sampling without loss of timing data. Restart does not require resetting time.
Multiple-tube Sampling
Built-in constant pressure regulator allows user to take up to four simultaneous samples with rates up to 500 ml/min each (total combined flow 1350 ml/min maximum) using the optional adjustable tube holder accessory
RFI/EMI Shielding
Complies with requirements of EN 55022, FCC Part 15 Class B, EN 50082-1
Frequency range of the radiated susceptibility test was 27 to 1000 MHz
CE marked
Additional Specifications
Built-in fluid/particulate trap
External see-through filter housing
Tamper-resistant control cover
Tamper-resistant compensation adjustments
Built-in accessory mount
Stainless steel belt clip
External exhaust port
All non-plastic parts made of corrosion-resistant materials
RFI and EMI-shielded case
Additional Features
One-year warranty
Ultra-quiet operation
Pulsation-free flow
Impact-resistant case

Protect sample pump from weather when in use outdoors.

 


 


 


 
Table 1.
Typical Back Pressure of Sampling Media (inches water)
Compare the information in this back pressure table to pump compensation range to determine appropriate applications.
Filter/Pore Size (µm) Flow Rate (L/min)
1.0 1.5 2.0 2.5
25-mm MCE/0.8 6 9 12 15
25-mm MCE/0.45 14 22 28 35
37-mm MCE/0.8 2 3 4 5
37-mm PVC/5.0 1 1 2 2


Table 2.
Pump Run Time in Hours with NiMH Battery
Following are typical run times achieved when using a fully charged nickel-metal hydride (NiMH) battery pack. Data is sorted by type of sample media. All run times are listed in hours. Results are obtained using a new fully charged battery. Pump performance may vary.

Mixed Cellulose (MCE) filter, 0.8-µm pore size
Flow Rate (L/min) Filter Diameter
37 mm 25 mm
2.0 37 33
2.5 34 26
3.0 31 21
3.5 29 18
4.0 25 15
4.5 20 14

Polyvinyl Chloride (PVC) filter, 5.0-µm pore size
Flow Rate (L/min) Filter Diameter
37 mm 25 mm
2.0 47 41
2.5 38 33
3.0 35 30
3.5 26 27
4.0 22 25
4.5 21 23
NOTE: Increases in back pressure during sampling due to buildup of sample on the filter can decrease battery life.


Table 3.
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.

Mixed Cellulose (MCE) filter, 0.8-µm pore size
Flow Rate (L/min) Filter Diameter
37 mm 25 mm
2.0 24.1 16.3
2.5 21.4 14.5
3.0 19.1 11.0
3.5 17.8 10.7
4.0 15.4 **
4.5 14.6 **
**
Filter back pressure exceeded pump capability during testing.

Polyvinyl Chloride (PVC) filter, 5.0-µm pore size
Flow Rate (L/min) Filter Diameter
37 mm 25 mm
2.0 31.6 21.7
2.5 27.7 24.0
3.0 27.0 18.6
3.5 22.8 16.4
4.0 19.4 16.2
4.5 19.0 14.6
NOTE: Increases in back pressure during sampling due to buildup of sample on the filter can decrease battery life.

Personal or Area Sampling
The result of extensive research and development, the PCXR4 is a constant flow air sampling pump suited for a broad range of applications. With an operating range of 1000 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 air sampling pump is typically used with collecting devices such as:
  • Sorbent sample tubes and long-duration detector tubes for collecting most hazardous chemical gases and vapors from the air
  • Cyclones for collecting respirable dust
  • IOM samplers for collecting inhalable dust
  • Filters for collecting total dust, asbestos, or chemical hazards
  • Tedlar sample bags for collecting airborne chemical hazards
  • Impingers for collecting reactive chemicals into liquids
Powerful Pneumatic System
With its broad flow range, the powerful PCXR4 does the work of both a high flow and low flow pump in a single unit. Its state-of-the-art pneumatic system delivers a constant flow, resulting in accurate air volumes without the need for frequent sampler adjustments. This system includes four components:
  • Pulsation dampener for smooth airflow
  • Built-in flowmeter to monitor pump flow
  • Pressure regulator for low flow sampling
  • Filter assembly to prevent clogging of pump
Long-life NiMH Battery Pack
The NiMH battery pack provides a minimum 12-hour continuous run time. The battery charge test ensures the pump runs the entire shift.


High-accuracy Timer
Using a precision timing circuit, the PCXR4 provides an instant readout of the duration of sampling. A convenient Hold feature allows a pause in sampling; one stroke of the keypad allows the user to resume sampling.

  • Testing possible up to 12 hours
  • Timing accuracy ± 0.05%
  • Large, easy-to-read LCD
Back Pressure Compensation
The PCXR4 is factory-preset to compensate for back pressures to 40 inches water over the most commonly used flow ranges. As back pressure increases, the motor voltage automatically corrects to maintain a constant flow over the operating range. There is no sacrifice to air volume accuracy, even in dusty environments.



Multiple-tube Sampling Capability
The PCXR4s built-in constant pressure regulator allows users to take up to four simultaneous samples with rates up to 500 ml/min each using an optional adjustable low flow holder (not included). Reduce time in the field and use fewer pumps with multiple-tube air sampling.


Automatic Fault Shutdown
To ensure the integrity of results, the air sampling pump is programmed to shut itself off in the event of:
  • Excessive back pressure
  • Low battery voltage
The pump will automatically enter the Hold mode, and the appropriate indicator (LoBatt or Flow Fault) will light. The LCD will show the elapsed sampling time recorded at the point of shutdown.


A High Standard of Safety
Intrinsically safe, the PCXR4 air sampling pump is UL Listed for explosive gas and dust atmospheres of 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 model is available. Contact SKC.


RFI and EMI Shielding
PCXR4 case material and unique circuitry are designed to provide shielding from radio frequency in the range of 27 to 1000 MHz. This shielding prevents fluctuations in the flow caused by electrical effects on the pump control circuitry. CE marked

A Variety of Ordering Options

The PCXR4 and its accessories can be purchased together in single and five-pack pump kits or separately for a more customized setup. Accessories include chargers (single or five station), adjustable low flow holders, filter cassette holders, impinger holders, and a protective nylon carrying pouch with shoulder strap and belt. Note: Kits do not contain all the accessories listed here. Contact your SKC regional sales representative for complete ordering information. CE marked

All SKC Universal Air Sampling Pumps are available with European approvals. Contact the SKC International Sales Department at 724-941-9701 or e-mail at skcorder@skcinc.com for ordering information.