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Universal Pumps

PCXR4
1000 to 5000 ml/min
(5 to 500 ml/min Low Flow Applications)
Industry Standard Air Sampling Pump
Personal or Area Sampling
Timer and Fault Shutdowns

PCXR4 Universal Personal or Area Air Sampling Pump

ATEX-approved
models available

Ordering Information

PCXR4 Downloads

Performance Profile
224-PCXR4 Air Sampling Pump
Operating Range	1000 to 5000 ml/min (UL Listed model) (5 to 500 ml/min requires the 224-26 Series adjustable low flow 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 113 F (0 to 45 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 low flow 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.

Ordering Information

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)
Filter/Pore Size (µm)	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
Flow Rate (L/min)	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
Flow Rate (L/min)	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
Flow Rate (L/min)	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
Flow Rate (L/min)	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.

Ordering Information

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

Ordering Information
Universal XR pumps require 1/4-inch tubing

Description		Cat. No.
PCXR4 Air Sampling Pump Only (without charger) includes constant flow air sampling pump with RFI/EMI-shielded case, battery pack, and screwdriver set Requires charger, see kits or chargers below ATEX-approved models available, contact SKC		224-PCXR4
PCXR4 Single Pump Kit, High/Low Flow includes sample pump with battery pack, single PowerFlex charger with cable, adjustable low flow holder, Type A tube cover, filter cassette holder, and screwdriver set, in a convenient soft-side nylon carry case	100-240 V	224-PCXR4KD
PCXR4 Single Pump Kit, High/Low Flow, with Hard-side Pelican Case includes pump with battery pack, single PowerFlex charger with cable, adjustable low flow holder, Type A tube cover, filter cassette holder, and screwdriver set, in a hard-side Pelican case	100-240 V	224-PCXR4KDH
PCXR4 Starter Kit includes pump with battery, charger, Tygon tubing (3 feet, 1/4-inch ID), and collar clip with cable tie	100-240 V	224-PCXR4-S
PCXR4 5-pack Pump Kit, High/Low Flow includes 5 sample pumps with battery packs, adjustable low flow holders, Type A tube covers, filter cassette holders, and screwdriver sets and one 5-station charger with cables, in a Pelican carry case ATEX-approved models are available. Contact SKC.	100-240 V	224-PCXR4K5D
Pump Certificate
Certificate of Compliance, optional, must be ordered when ordering pump		P1501
Calibrators
Defender Primary Standard Calibrator, 5 to 500 ml/min, includes lead-acid battery, charger, Optimizer software, and 39-inch (1-meter) serial cable Software requires Windows XP (sp 2 or 3) or Windows Vista (32-bit version) and an RS-232 port or USB to RS-232 adapter.		717-510L
Defender Primary Standard Calibrator, 50 to 5000 ml/min, includes lead-acid battery, multi-plug charger (100-240 V), Optimizer software, and 39-inch (1-meter) serial cable Software requires Windows XP (sp 2 or 3) or Windows Vista (32-bit version) and an RS-232 port or USB to RS-232 adapter.		717-510M
Defender Universal Charger, 100-240 V, with U.S., Euro, and Australia plugs		717-509
Defender Universal Charger, 100-240 V, with U.S. plug		717-507
Chargers — PowerFlex Charging Systems
PowerFlex 5-station 100-240 V includes power supply and cord Purchase pump-specific cables separately; choose from the list below. For U.S.-produced pump models only, not compatible with EX and ATEX-approved models		223-1000
PowerFlex Single 100-240 V includes power supply and cord Purchase pump-specific cables separately; choose from the list below. For U.S.-produced pump models only, not compatible with EX and ATEX-approved models		223-2000
Replacement CE-marked Power Supply for 5-station PowerFlex Charger		P22310
PowerFlex Cables
Universal XR Series (5-cell), 1 cable		223-1002
Replacement Battery Packs
Replacement Battery Pack, NiMH, for XR models Not suitable for MSHA-approved models Replacing batteries with non-approved battery packs voids the pump warranty and UL intrinsic safety approvals.		P21661MH
Replacement Battery Pack, NiCad Not suitable for MSHA-approved models Replacing batteries with non-approved battery packs voids the pump warranty and UL intrinsic safety approvals.		P21661
AC Adapter (Battery Eliminator) 115 V, for extended run times Use of the Battery Eliminator voids the UL Listing for intrinsic safety.		223-325
AC Adapter (Battery Eliminator) 230 V, for extended run times Use of the Battery Eliminator voids the UL Listing for intrinsic safety.		223-325B
Pump Carry Cases
Protective Nylon Pump Pouch with belt and adjustable waist and shoulder strap designed for worker comfort when using Universal XR samplers High-profile Red, for easy observation		224-95A
Protective Nylon Pump Pouch with belt and adjustable waist and shoulder strap designed for worker comfort when using Universal XR samplers Black		224-87
Kit Cases Single Deluxe Case (Pelican), single pump carry case for SKC pumps. Foam-filled case is watertight, airtight, dustproof, and crushproof; will accommodate a single pump and accessories		224-901
5-pack Kit Carry Case (Pelican), Universal XR series, watertight, airtight, dust proof, and crush proof, equipped with foam for complete equipment protection		224-908
Replacement Parts and Tools
Replacement Top Valve Plate, for AirChek 52 and Universal Series Pumps		P213301
Exhaust Port		P22417C
Replacement Tamper-resistant Cover		P22433C
Replacement External Screws, set		P22433ES
Replacement Cap Screw, set of 2		P22433R
Replacement Filter Housing, air inlet port and particulate trap		P22417D
Replacement Filter Kit includes 3 filters and 3 O-rings		P22409
Replacement Filters Only, pk/10		P2240901
Replacement Filter Kit, Economy, includes 100 filters and 10 O-rings		P2240902
Replacement LCD for Universal Pumps		P72392
SKC Pneumatic Test Kit, for testing flow compensation in personal sample pumps, 1 to 5 L/min rotameter, 0 to 80 inches magnehelic pressure gauge		224-6580
SKC Universal Screwdriver Kit, for use with sample pumps, includes 3 interchangeable screwdriver heads		224-11
Mini Tool Kit, for use with air sampling pumps and filter media, includes scissors, pliers, file, 2 slotted screwdrivers, 2 Phillips screwdrivers, forceps, and charcoal pick		376-01-01

PCXR4 Downloads

PCXR4 Operating Instructions (PDF)

PCXR4 Spec. Sheet (PDF)

Technical Note: SKC Sample Pump Battery Pack Characteristics and Maintenance (PDF)

Battery Pack for Universal PCXR Sample Pumps Operating Instructions (PDF)

MSDS for Nickel Cadmium Battery GPI International (PDF)

MSDS for Nickel Cadmium Battery SANYO Energy (PDF)

MSDS for Nickel-metal Hydride Battery (PDF)

UL Certificate of Intrinsic Safety

EC Declaration of Conformity (PDF)

Instrucciones de Operación PCXR4 (PDF)

Bedienungsanleitung PCXR4 (PDF)

Mode d’emploi Pompe de prélèvement universelle PCXR4 (PDF)

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.