SKC Leland Legacy Personal Air Sampling Pump

Overview

The SKC Leland Legacy Personal Air Sampling Pump is an engineered solution for quantitative, time-integrated air sampling in occupational hygiene and environmental monitoring applications. Designed around a precision-controlled brushless DC motor and advanced microprocessor-based flow regulation, the pump operates on the principle of active volumetric displacement with real-time feedback compensation—ensuring stable flow delivery across variable backpressure conditions encountered during filter, impinger, or sorbent tube sampling. Its core function is to draw ambient air through a collection medium at a user-defined, gravimetrically traceable flow rate, enabling accurate calculation of airborne contaminant mass concentration (e.g., mg/m³ or µg/m³) per standardized methods such as NIOSH Manual of Analytical Methods (NMAM), OSHA Method ID-121, and ISO 13137:2013 (“Workplace atmospheres — Requirements for pumps used for personal sampling”). The Leland Legacy is not intrinsically safe and is intended for use in non-hazardous locations only.

Key Features

• Programmable constant-flow operation from 5 to 15 L/min, with automatic compensation maintaining flow within ±5% of setpoint despite filter loading or tubing resistance changes
• Extended runtime: up to 32 hours at 5 L/min using a 37-mm 0.8-µm mixed cellulose ester (MCE) filter; 20 hours at 8 L/min under identical conditions
• Integrated rechargeable lithium-ion battery system delivering ≥24 hours of continuous operation at 5 L/min (medium-dependent); 15-hour full recharge via universal 100–240 V AC adapter
• Large tactile keypad and intuitive LCD interface displaying real-time flow, cumulative volume, ambient temperature, barometric pressure, elapsed time, battery status, and pump operational mode
• Onboard data logging stores start/end timestamps, total sampling duration, average flow rate, sampled volume, temperature, barometric pressure, and flow fault events—downloadable via optional DataTrac PC software (v5.x)
• Ruggedized housing: ESD-safe thermoplastic body with protective rubber overmolding, integrated belt clip, and IP54-rated ingress protection against dust and splashing water
• Acoustically optimized design: 62.5 dB(A) at 1 m (no enclosure); reduced to 52 dB(A) when used with the optional noise-dampening enclosure (Cat. No. 224-89)
• Built-in particulate trap upstream of the motor prevents contamination of internal components and extends service life

Sample Compatibility & Compliance

The Leland Legacy is validated for use with a broad spectrum of certified sampling media, including but not limited to: Sioutas cascade impactors (9 L/min), Personal Environmental Monitors (PEMs) (10 L/min), low-capacity PUF tubes (5 L/min), VersaTrap™ spore traps (7 L/min, 37-mm MCE filter), and PPI samplers for respirable crystalline silica (8 L/min). It meets the performance criteria outlined in ISO 13137 for personal sampling pumps, including flow stability, battery endurance, and pressure drop tolerance. CE marking confirms conformity with the EU Electromagnetic Compatibility (2014/30/EU) and RoHS (2011/65/EU) directives. While not certified to ATEX or IECEx standards, its non-incendive construction complies with general workplace safety requirements under OSHA 29 CFR 1910 and EU Directive 2006/42/EC (Machinery Directive). The device supports audit-ready data integrity when paired with DataTrac software configured for 21 CFR Part 11-compliant electronic records (with appropriate IT validation protocols).

Software & Data Management

DataTrac PC software (sold separately) enables comprehensive configuration, remote programming, and post-sampling analysis. Users can define multi-step sampling protocols—including delayed start, variable flow segments, and duty-cycle scheduling—directly from a Windows workstation. Logged field data are timestamped with UTC synchronization and exported in CSV or XML formats compatible with LIMS integration. Audit trails record all parameter changes, calibration events, and firmware updates. When deployed in GLP- or GMP-regulated environments, DataTrac supports role-based access control, electronic signatures, and immutable record retention—provided the host system undergoes formal validation per organizational SOPs and regulatory expectations (e.g., FDA guidance on computerized systems).

Applications

The Leland Legacy serves as a primary sampling platform in industrial hygiene surveys for respirable dust (e.g., quartz, coal, beryllium), volatile organic compounds (VOCs) via sorbent tubes (e.g., Tenax®, Carbograph™), semi-volatiles using PUF plugs, bioaerosols (fungi, bacteria, endotoxin) collected on membrane filters or liquid impingers, and nanoscale particles captured by electrostatic precipitators or nano-traps. Its programmability and extended runtime make it ideal for unattended 8–24 hour area monitoring, shift-long personal exposure assessments, and longitudinal studies requiring high temporal resolution. Field deployments include construction sites, pharmaceutical cleanrooms, semiconductor fabrication facilities, mining operations, and indoor air quality investigations in schools and healthcare settings.

FAQ

Is the Leland Legacy intrinsically safe?
No. It is not certified for use in hazardous (classified) locations where flammable gases, vapors, or combustible dusts may be present.
Can the pump be calibrated in-house?
Yes—using a NIST-traceable primary standard (e.g., bubble meter, dry calibrator, or mass flow meter) and following SKC’s documented calibration procedure (P/N 100-3002K Rev. D). Annual recalibration is recommended.
What is the maximum allowable backpressure?
The pump maintains specified flow accuracy up to 15 kPa (≈113 mmHg) static backpressure, sufficient for most 37-mm filter cassettes and sorbent tubes per ISO 13137 Annex B.
Does it support Bluetooth or wireless data transfer?
No. Data exchange occurs exclusively via USB connection using the included cable and DataTrac software.
Is firmware upgradeable?
Yes—firmware updates are distributed by SKC and installed via DataTrac; version history and release notes are available upon request from technical support.