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
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
