Escort ELF air sampling pumps feature a state-of-the-art electronic laminar flow sensor to provide a constant flow control with ± 2.5% regulation of flow rate (from 1-3 lpm) with automatic compensation for changes in battery voltage, temperature, altitude, and sample load. An internal secondary standard calibrates the pump continuously and needs to checked against a primary standard only once per month (or every 200 hours for coal mine dust sampling)
Features
Patented electronic laminar flow control
Internal secondary standard calibrates the pump continuously, maintaining OSHA compliance
Check against a primary standard only once a month or every 200 hours for coal mine dust sampling
Inlet filter traps moisture and particular matter
Stainless steel-filled plastic case provides EMI/RFI protection
Rated IP65 for resistance to water and dust ingress
Exceptionally quiet operation
Flow-Fault Indicator shows any sample inlet blockage
Run/Hold feature allows “time out” during sampling process
Elapsed time readout and low-battery warning
Low flow and dual tube sampling available with Gemini Twin-Port Sampler