Escort® Elf 空气取样泵

产品名称：

Escort^® Elf Air Sampling Pump
Escort^® Elf 空气取样泵

产品介绍：

产品说明

一般描述

Specifications
Operating Flow Control	Volumetric 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 Rate	Flow 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 accessory
Flow Indication	Liquid crystal display (LCD) provides 0.01 L/min resolution
Operating Range	30 inches of water load upt to 2 L/min and 10 inches up to 3 L/min
Flow Blockage Detection	Flow-fault LED comes on immedieatly when block is detected. Pump shuts down within 90 seconds if block is not cleared.
Elapsed Time Readout	To 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 Time	Varies with flow rate and sample device loading.
Operating Temperature Limits	32-113 °F (0-45 ℃)
Physical Weight	23 oz. (652 g) with battery pack
Dimensions	2.25 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 pack
Power Supply	4.8 V battery pack of four NiMH cells (units mfg before October 2011 contain NiCd cells)
Battery Pack Capacity	2.8 amp hours (NiMH version); 2.4 amp hours (NiCD version)
Battery Pack Recharge Time	14-16 hours overnight with Omega Battery Charger
Typical Battery Pack Life	300 or more charging cycles

特点和优势

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 IP66 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 (28118-U)

适用性

Approvals

NIOSH 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.

法律信息

Escort is a registered trademark of Zefon International

基本信息

NACRES

NB.24

产品性质

形式	solid
参数	0.5-3.0 L/min flow rate 32-113 °F temp. range (0-45 ℃)
technique(s)	active air sampling: suitable
D × H × W	2.25 in. (5.7 cm) × 4.25 in. (10.8 cm) × 4.0 in. (10.2 cm)
电池电量	4.8 V, 14 hr life
application(s)	air monitoring environmental industrial hygiene

安全信息

Escort® Elf Air Sampling Pump