SIBATA MP-W5P Portable Air Sampling Pump

Overview

The SIBATA MP-W5P Portable Air Sampling Pump is an engineered solution for personal exposure monitoring and environmental air sampling in occupational hygiene, indoor air quality (IAQ), ambient air monitoring, and industrial hygiene applications. Designed around a differential pressure-based flow measurement principle, the MP-W5P integrates a calibrated internal flow sensor with real-time digital feedback to maintain stable volumetric flow rates across a broad operational range—from 0.050 L/min to 5.00 L/min—without external flow controllers or rotameters. Its compact diaphragm pump architecture ensures low power consumption, high reliability under variable backpressure conditions, and compatibility with standard sorbent tubes (e.g., charcoal, silica gel, Tenax), filter cassettes (e.g., PVC, mixed cellulose ester), and impingers used in OSHA, NIOSH, and ISO 16000-compliant sampling protocols. The device complies with key performance expectations outlined in ISO 13137 (Workplace air — Requirements for pumped samplers) and supports traceable calibration against primary standards per ISO/IEC 17025-accredited laboratories.

Key Features

• Wide, continuously adjustable flow range: 0.050–5.00 L/min—covers all major NIOSH/OSHA methods requiring low-flow (e.g., formaldehyde, benzene) and high-flow (e.g., respirable dust, VOCs) sampling configurations.
• Integrated constant-flow control with automatic compensation for filter loading and tubing resistance—maintains setpoint within ±5% or ±5 mL/min (whichever is greater) across specified backpressure limits (up to 10.0 kPa at mid-range flows).
• Real-time LCD display with backlight: shows instantaneous flow (0.000–6.50 L/min), cumulative volume (0.00–99999 L), elapsed time (0.00–999.59 h:min), and battery status.
• Triple power flexibility: operates on AC adapter (100 V), six AA alkaline batteries, or the included NI-W5 rechargeable Ni-MH battery—enabling >24 hours runtime at 0.1 L/min and ≥18 hours at 1.0 L/min (no-load, Ni-MH).
• Ergonomic, lightweight design (95 × 56 × 95 mm; 0.45 kg) optimized for belt-worn personal sampling—compatible with standard 6 mm and 8 mm OD sampling tubing (5 mm and 7 mm ID).
• Chemically resistant fluid path: pump head (PC/POM), EPDM diaphragm, ABS flow channel, and PC housing ensure durability with organic solvents, acidic gases, and humid airstreams.

Sample Compatibility & Compliance

The MP-W5P is validated for use with NIOSH-approved sampling media including SKC Ultra, Anasorb CSC, XAD-2, and MCE filters, as well as ISO 16000-6 and ISO 16017-1 compliant passive and active sampling configurations. Its differential pressure flow sensing mechanism meets the metrological requirements for Class 2 portable samplers per ISO 13137. All firmware and hardware designs adhere to IEC 61000-4 electromagnetic compatibility standards. Device configuration, calibration data, and sampling logs are fully auditable and support GLP/GMP-aligned documentation workflows—including manual entry of sample IDs, analyst initials, and location metadata.

Software & Data Management

While the MP-W5P operates as a standalone field instrument without mandatory software dependency, its time-stamped cumulative flow and timer records enable seamless integration into laboratory information management systems (LIMS) via manual CSV import or optional IR/USB data transfer modules (sold separately). All displayed parameters—including flow deviation history and battery voltage decay profiles—are retained in non-volatile memory for post-sampling QA/QC review. The device supports 21 CFR Part 11–compliant audit trails when paired with SIBATA’s optional QCA-W5 charging station and PC-based configuration utility (v3.2+), which enforces user authentication, electronic signatures, and immutable log archiving.

Applications

• Personal exposure assessment for respirable crystalline silica (RCM), metals (e.g., lead, cadmium), aldehydes, and semi-volatile organics per OSHA Method ID-121 and NIOSH Methods 7300, 2541, 3500.
• Indoor air quality surveys targeting TVOCs, formaldehyde, and carbon monoxide using passive badge correlation or active tube-based analysis.
• Ambient air monitoring for PM_2.5/PM₁₀ gravimetric sampling per EPA TO-13A and ISO 7708.
• Validation of HVAC system filtration efficiency and leak testing in cleanrooms per ISO 14644-3.
• Field-deployed sampling in remote or off-grid locations where portability, battery longevity, and ruggedness are critical.

FAQ

What flow accuracy specifications apply across the full 0.05–5.0 L/min range?
Accuracy is defined as ±5% of the set flow value or ±5 mL/min—whichever is greater—and is verified at multiple points (0.1, 1.0, and 5.0 L/min) under representative backpressures per ISO 13137 Annex B.
Can the MP-W5P be calibrated in-house?
Yes—the device supports two-point field calibration using a NIST-traceable primary flow standard (e.g., dry calibrator or bubble meter); calibration coefficients are stored in protected memory and require password access.
Is the NI-W5 battery compatible with earlier SIBATA pump models?
The NI-W5 rechargeable battery is mechanically and electrically compatible only with the MP-W5P and QCA-W5 charger; it is not interchangeable with legacy MP-ΣNII series batteries.
Does the MP-W5P meet ATEX or IECEx requirements for hazardous areas?
No—the MP-W5P is rated for general-purpose use only (IP20 enclosure rating) and is not certified for explosive atmospheres.
How is cumulative flow data protected during power loss?
All cumulative volume and timer values are written to non-volatile EEPROM memory at 10-second intervals; data integrity is preserved even during abrupt battery removal or voltage drop below operational threshold.