The ANALITE NEP-5000 ISO7027 90°series of digital turbidity probes are designed for monitoring and process applications where ultimate sensor flexibility is a consideration.
This probe offers a multitude of physical sensor variations, with the further benefit of a PC interface that allows the user to easily Calibrate, Modify Range modes, and adjust sensor output modes and data characterization. ANALITE NEP-5000 is the completely customizable turbidity probe that can be ordered to the end user’s particular needs. All the benefits of a custom solution at a very competitive price*.
The standard NEP-5000 can be ordered in several custom variations:
The ANALITE PC Configurator allows:
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Available outputs included are Analog Voltage or Current Loop (4 to 20 mA),RS422/RS485, SDI-12, RS232, USB and digital TTL.
Specifically the ANALITE NEP5000 wiping probes are designed for applications where bio-fouling will build up to obscure the optics such as in long monitoring deployment or placement in warm bio-active waters. The ANALITE integral wiper assembly and optional Copper case is designed for operations where severe bio fouling or sedimentation buildup is likely. The standard ANALITE NEP5000 series of probes, with its Delrin Composite housing may be submerged to a depth of 100 meters. A Metal housing is available for application where a greater depth rating is required. Maximum depth rating is 200 meters (non-wiping with metal case).
NEP5000 Range Set Concept
Calibration costing rules do apply. One calibration for the 3 ranges is included in the purchase price. Additional range calibrations are an extra expense. Different ranges are available for the 90° sensor, but must be specified at time of order and may attract further costs.
*Please refer to Observator NEP5000 ordering guide document for correct ordering codes. **One factory calibrated range in the list price. |
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| Specifications | ||||
| TURBIDITY | MECHANICALS | |||
| Technique | 90° modulated infra-red (ISO7027) is standard 180° backscatter is optional | Weight | NEP5000 Delrin models 300 grams – probe only* NEP5000 Metal models 770 grams – probe only* *100gms connector plus 70 grams per meter of cable | |
| Ranges | 3 Preset Range Groups: Low (example 0-10NTU) Medium (example 0-400NTU) High (example 0-1000NTU) Recommended Range Versions: V1 NTU ranges: 10, 400, 1000 V2 NTU ranges: 10, 400, 5000 V3 NTU ranges: 100, 1000, 5000 V4 NTU ranges: User specified Custom Ranges available Range Hopping Capable | Construction | Delrin Composite casing is standard 316 Stainless Steel Titanium Anti-Biofoul CW352H 70/30% Copper / Nickel | |
| Resolution | Range Up to 100NTU Up to 400NTU Up to 1,000NTU Up to 5,000NTU | Resolution ±0.01NTU ±0.1NTU ±1.0NTU ±2.0NTU | Cable | 6 core + shield, 6mm nominal dia. PUR sheath. Conductor resistance 45 ohms per km. Weight - 70 grams per meter. |
| Accuracy | ±1% at 25°C up to 5000NTU | Cable Length | Standard Glanded Cable length to be specified at time of order. Per meter price applies | |
| Linearity | Better than 1% for 0 to 3000 NTU Better than 2.0% for 0 to 5000 NTU | Depth Rating | 200m (660ft) Non-wiping 100m (330ft) Wiping | |
| Temp. Coefficient | Better than ±0.05%/°C | Operating Temp. | -10°C to 40°C | |
| Outputs | Digital 3.6 v TTL (streaming or polled) RS422 / RS485 (streaming or polled) SDI-12 RS232 USB Analog 4 - 20mA Analog -2.5 volts to +2.5 volts (or variations) | Storage Temp. | -20°C to 50°C. | |
| Zero Drift | Less than ±0.2NTU | Accessories | NEP-CFG PC Interface and Communication Module and PC configuration and calibration software. NEPSILWIPE - Wiper replacement kit comprising of 4 silicon wipers and a hex fastening key NEP-SHRD-D Delrin Protective shroud NEP-SHRD-C Copper protective shroud NEP-SHRD-S Stainless protective shroud NEP-SHRD-T Titanium Protective shroud NEP-CBL - Probe cable in meters. NEP-CBL-CON SubConn Connector and cable assembly | |
| Calibration | Factory calibrated using non-toxic AEPA polymer solutions. | Options | 180° optics Outer Case in Copper, Stainless, or Titanium Marine Connectors | |
| Power | 8 - 30V dc, 15mA on. 40mA reading and 60mA wiping | |||
| Settling Time | < 1 second after application of power to 99% | |||
| Wiping | Wiping is configurable through the PC configuration tool. Wipe directions or alternate settings and timeouts will prolong probe life. During a wipe, the output remains within ±1% full scale of the turbidity value just prior to the wipe | |||
| Wipe Time | 8 seconds nominal | |||
| Ordering code |  | |||
| Applications |  |
| The NEP5000 sensor has 3 internal ranges that can be chosen for a particular application or combined in our “Auto Range” feature that allows jumping from range to range as conditions change. Also our NEP5000 has a top reading value of 5000 NTUs which exceeds that of all our competitor’s Due to these powerful features the NEP5000 can support a multitude of applications across 0 to 5000 NTU including: Laboratory Potable water Clean water dredging Fresh water lakes and rivers Brackish water dredging Estuary fluctuations Sediment studies Sewers Food processing Waste treatment Pulp and peat production Algae Farms A 180 retro-scatter version is also available with applications requiring 10,000 to 30,000 NTU. |
| Communication |
| The NEP5000 series of turbidity sensors has many features, but one of the most prominent is the adaptability of this sensor to work with all available controllers, loggers, and portable devices. The NEP5000 supports the following interfacing and communication modes: RS422 RS485 RS232 SDI-12 Digital TTL Current 4 to 20 milliAmps Voltage 0 to 5 volts USB (Specs below) |
NEP-5000-USB HAND HELD
The Analite NEP5000 Turbidity sensor known for extreme accuracy and flexibility now comes with a new hand held display device. Through a USB interface the most cost effective turbidity sensor becomes the worlds most cost effective hand held. Simply team it up with a tablet, Laptop, or Phone
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| NEP-5000-USB 5 metre glanded cable. USB interface built into probe. Made for single purpose hand held display system. | USB in cable with SubConn marine connector | USB cable connected |
| NEP-USB-CONN 5 metre Marine Connector cable. USB interface built into cable. Allows for sensor swapping and frees sensor for other purposes. | ||
| NEP-5000 Ordering Codes and Descriptions | Considerations |
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| Tablet Software | |
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| Main screen shows turbidity, temperature, range and wiping alert. | Graph screen shows turbidity and range. |
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| Log screen streaming time/date, turbidity, and range. Logs to file. | Setting screen selects polled or streaming modes |
| Specifications |
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Maintenance:
Bio-fouling is the biggest maintenance consideration when long term deployment is required. The NEP5000 has an incorporated wiper mechanism to keep the optics clean and we suggest a shroud accessory to protect the mechanism and the optics.
We offer copper componentry to minimise fouling.
We also supply with marine connectors for easy change-overs.
International distributors are capable of servicing and supplying spare parts for local maintenance.
Calibration:
The PC interface and software are essential for calibration and configuration. The software also supplies a usage report to aid in maintenance. The tool is also used to load firmware updates and import and export configuration files.
On the mechanical side of things I suggest a wiper kit and a shroud.
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