Escort Elf Air Sampling Pump

Description

• General description: SpecificationsOperating Flow ControlVolumetric flow rate held within ± 2.5% of set-point over the 1 to 3 L/min operating range (± 5% to 0.5 LPM), with automatic compenstation for battery voltage, altitude, temperature, and sample load changes.Flow RateFlow rate adjustable between 0.5 and 3.0 L/min; lower flow rates attainable (to 1 mL/min) with the optional Gemini Twin-Port Sampling accessoryFlow IndicationLiquid crystal display (LCD) provides 0.01 L/min resolutionOperating Range30 inches of water load upt to 2 L/min and 10 inches up to 3 L/minFlow Blockage DetectionFlow-fault LED comes on immedieatly when block is detected. Pump shuts down within 90 seconds if block is not cleared.Elapsed Time ReadoutTo 999 minutes in increments of 1 minute. Holds the last reading after either flow blockage or low battery shutdown and when pump is OFF or in HOLD mode.Operating TimeVaries with flow rate and sample device loading.Operating Temperature Limits32-113 °F (0-45 °C)Physical Weight23 oz. (652 g) with battery packDimensions2.25 in. D x 4.25 in. H x 4.0 in. W (5.7 cm D x 10.8 cm H x 10.2 cm) with battery packPower Supply4.8 V battery pack of four NiMH cells (units mfg before October 2011 contain NiCd cells)Battery Pack Capacity2.8 amp hours (NiMH version); 2.4 amp hours (NiCD version)Battery Pack Recharge Time14-16 hours overnight with Omega Battery ChargerTypical Battery Pack Life300 or more charging cycles
• Features and Benefits: Patented electronic laminar flow controlInternal secondary standard calibrates the pump continuously, maintaining OSHA complianceCheck against a primary standard only once a month or every 200 hours for coal mine dust samplingInlet filter traps moisture and particular matterStainless steel-filled plastic case provides EMI/RFI protectionRated IP66 for resistance to water and dust ingressExceptionally quiet operationFlow-Fault Indicator shows any sample inlet blockageRun/Hold feature allows "time out" during sampling processElapsed time readout and low-battery warningLow flow and dual tube sampling available with Gemini Twin-Port Sampler (28118-U)
• Suitability: ApprovalsNIOSH certified for coal mine dust sampling (TC-74-030) MSHA certified as intrinsically safe for underground use (Approval # 2G-3924-1). UL approved as intrinsically safe for use in hazardous locations, Class I, Groups A, B, C, D; Class II, Groups E, F and G; Class III, Division I locations.