产品展示|Products
美国ISCO 3700便携式水质采样器
美国ISCO 3700全自动等比例水质采样器可以按时间、流量，或暴雨条件实现连续顺序采样或连续混合采样。采样量准确，重复性好。 原理由采样仪蠕动泵产生负压采集样品，并通过控制器分配到采样瓶。
美国ISCO 3700全自动等比例水质采样器特点
- 等时间间隔采样
- 非等时间间隔采样
- 暴雨径流采样
- 多瓶组合采样
- 样瓶分组采样
3700 Full-Size Portable Sampler
Full-size performance and flexibility
| The full-featured 3700 Sampler collects sequential or composite samples based on time, flow rate, or storm conditions. It's a great choice if you don't need the sophisticated parameter monitoring and logging capabilities of our 6700 Series.
The exclusive LD90 gives you automatic compensation for changes in head height, plus automatic suction line rinsing to prevent cross contamination. The non-contacting liquid sensor is not affected by conductivity, viscosity, temperature, or liquid composition. There are no internal tubing connections, so cleaning and tubing replacement are fast and easy. The 3700 pump outperforms most competing samplers and maintains the EPA-recommended 2 ft/second line velocity at head heights up to 16 feet, with 1/4-inch suction line. For higher lifts, we recommend our 6700 Series. Ample ice capacity and high-performance insulation in the base keep your samples cool. With 20 lbs of ice in the base and 4 gallons liquid collected at 65°F, the sample temperature is maintained at least 32°F below ambient for 24 hours.Standard Features
Applications
Options and Accessories
|
 |
Specifications
| Size (Diam x Ht): | 19 x 25 inches (50.5 x 64 cm) |
| Weight: | Dry, less battery - 37 lbs (16.8 kg) |
| Material: | ABS Plastic |
| Power required: | 12 VDC |
| Intake purge: | Adjustable air purge before and after each sample. |
| Tubing life indicator: | Provides a warning to change pump tubing. |
| Pump tubing life: | Recommended 500,000 pump counts |
| Intake suction tubing: | Vinyl or Teflon®; 3/8 inch (1 cm) or 1/4 inch (0.6cm) ID; 3 to 99 feet (1 to 30 m) Length |
| Maximum lift: | 26 ft. (7.9 m) |
| Repeatability: | ±10 ml typical |
| Typical line velocity @ Head height: | 2.5 ft./s @ 3 ft; 2.5 ft./s @ 10 ft; 1.9 ft./s @ 15 ft. (0.76 m/s @ 0.9 m; 0.76 m/s @ 3.1 m; 0.58 m/s @ 4.6 m) |
| Liquid presence detector: | Non-wetted, non-conductive sensor detects when liquid sample reaches the pump to automatically compensate for changes in head heights. |
| Weight: | 11 lbs (5 kg) |
| Size (HxWxD): | 10 x 12.5 x 10 inches (25 x 32 x 25 cm) |
| Operational temperature: | 32° to 120°F (0° to 49°C) |
| Enclosure rating: | NEMA 4X, 6 IP67 |
| Program memory: | Non-volatile ROM |
| Flow meter signal input: | 5 to 15 volt DC pulse or 25 millisecond isolated contact closure. |
| Interface port: | 8 pin connector; data output at 2400 baud in ASCII. RS-232 format with handshake. |
| Clock accuracy: | 1 minute per month, typical, for real time clock |
| Sample frequency: | 1 minute to 99 hours 59 minutes, in 1 minute increments. Non-uniform times in minutes or clock times 1 to 9,999 flow pulses |
| Sample pacing: | Uniform time, non-uniform time, flow, flow paced/time switched, STORM (time and flow paced sampling during sample collection.) Flow pacing is controlled by external flow pulses. |
| Multiplexing: | Samples per bottle (1 to 50 with 1000 ml bottles; 1 to 17 with 350 ml bottles), bottles per sample (1 to 24), multiple bottle compositing. |
| Sample volumes: | Programmable from 10 to 9,990 ml in 1 ml increments |
| Sample retries: | If no sample is detected, up to 3 attempts; user selectable |
| Rinse cycles: | Automatic rinsing of suction line up to 3 rinses for each sample collection |
| Program storage: | 3 sampling programs |
| Programming modes: | Basic, extended and STORM |
| Sampling stop/resume: | Up to 24 real time/date sample stop/resume commands. |
| Controller diagnostics: | Tests for RAM, ROM, pump display, and distributor |
