Observator Instruments Analite NEP-5000 User manual

Manual | NEP-5000
Status: Final | Not confidential
Page 1 | 105
V20200311
Manual
NEP
-5000
Version: 20200311
Status:
Final
Confidentiality:
Not confidential
Date:
11 March 2020
Author:
Ludovic Grosjean
www.observator.com

Manual | NEP-5000
Status: Final | Not confidential
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Document history
The Observator range is in continuous development and so specifications may be subject to change
without prior notice. When in doubt about the accuracy of this document, contact the Observator Group.
Reference documents
Type of document / tool
Product type and name (incl. url)
Software
NEP-5000
CFG files
NEP-5000
Datasheet
NEP-5000
Manual
NEP-5000
Application notes
NEP-5000-SDI-12 option with Campbell logger
NEP-5000-SDI-12 option for H-522+ & H-500XL loggers
NEP-5000-SDI-12 option with Hydrospider logger
NEP-5000-SDI-12, RS485 and analogue: wiper operations
NEP-5000 multi-point calibration
NEP-5000 firmware updating procedure
Pressure calibration
Shroud installation
Temperature calibration
Wiper replacement

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Revision history
Date
Amendments
Company, position
2017-08-07
Initial document creation
Observator Australia,
Document Controller
2018-04-01
Edited overall content
Observator Australia,
Document Controller
2018-04-09
Introduced document control
Observator Australia,
Document Controller
2019-03-06
Added reference documents
Observator Australia,
Document Controller
2019-03-15
Integrated 2-point calibration information.
Compress document images.
Added additional reference documents.
Observator Australia,
Document Controller
2019-03-17
Added reference documents
Observator Australia,
Document Controller
2019-07-02
Quality review
Observator Australia,
Communication Officer
2019-08-16
Edited packing list
Observator Australia,
Document Controller
2019-08-29
Edited packing list
Observator Australia,
Document Controller
2020-03-03
Updated document format
Added NEP-CBL-CON diagrams
Observator Australia,
Document Controller
Procedure sign-off:
Date
Company, position
Status
2018-04-09
Observator Australia, Document Controller
Finished
2019-08-27
Observator Australia, Managing Director
Approved
2020-03-10
Observator Group, Communication Officer
Approved
Distribution list
Date
Company, position

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Status: Final | Not confidential
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Summary
Thanks for purchasing the new NEP-5000 turbidity probe. It will give you years of service if you install and
maintain the probe according to the guidelines set out in this manual.
Our successful NEP-5000 family of Analite turbidity sensors offers enhanced performances in a small and
revolutionary design with greater ease of deployment at lower cost. The NEP-5000 turbidity probes are
designed for monitoring and process applications where turbidity levels of up to 5,000NTU may be
encountered. Standard ranges are 10NTU, 400NTU and 5,000NTU, but custom ranges are available. The
NEP-5000 are designed for applications that will not allow bio-fouling to build up, such as short monitoring
deployment or placement in fast and cold running water. The NEP-5000 may be submerged to a depth of
100 meters (approximatively 328 feet).
The NEP-5000 turbidity probes use 90° optics and employs infra-red light in accordance with international
ISO 7027. All probes use a unique modulation technique that ensures almost total rejection of ambient
light conditions. It also has a unique microprocessor controlled differential sample and hold circuit for
enhanced performance, particularly at low turbidity levels.
This product is ideal for portable application, as well as field and laboratory applications for long term
monitoring. Simple to operate, the NEP-5000 can be customized and upgraded. Data logging can also be
performed using application on your Windows tablet using Bluetooth communication.
The new NEP-5000 series of turbidity sensors also has the added benefit of a self-cleaning, auto-ranging
field instrument. The system can be cabled or directly connected to the wireless module for quick field
process reading.
Note: Please refer to manual V4.5 and below for sensor manufactured prior to 2018.

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Table of contents
1 Applications .................................................................................................................... 8
2 Safety ............................................................................................................................... 9
3 Specification ..................................................................................................................10
4 What you will find in the box .........................................................................................13
5 Accessories ....................................................................................................................14
6 How to use this manual (where to begin?) ...................................................................16
6.1 Default settings .................................................................................................................................. 16
6.2 Finding the correct wiring diagram for your sensor ........................................................................... 17
6.3 How to configure and calibrate your sensor ...................................................................................... 17
6.4 What is required for your calibration and configuration ..................................................................... 17
6.4.1 SubConn with NEP-CBL-CON option ..................................................................................... 17
6.4.2 SubConn options only ............................................................................................................. 18
6.4.3 Glanded-NEP options only ...................................................................................................... 19
6.5 Connect the calibration module ......................................................................................................... 20
7 NEP-5000 capabilities ....................................................................................................21
7.1 Features in measuring ....................................................................................................................... 21
7.1.1 Single-range measurement ..................................................................................................... 22
7.1.2 Auto-range measurement ....................................................................................................... 22
7.2 Features in communication ............................................................................................................... 23
7.2.1 Periodic data free-flow ............................................................................................................ 23
7.2.2 Data-request mode (polled-mode) .......................................................................................... 25
7.2.3 SDI-12 mode ........................................................................................................................... 29
7.2.4 Measurement via Analog interface ......................................................................................... 32
7.3 Optical wiper: Features and configurations ....................................................................................... 35
7.3.1 Basic optical wiper configuration ............................................................................................. 35
7.3.2 Recommended method of triggering the optical wiper using a dedicated wiper wire ............. 36
7.3.3 Available optical wiping options for output configurations ...................................................... 37
8 Pinout & wiring diagram ................................................................................................38
8.1 RS232/Analog SubConn connector option (#WD1) .......................................................................... 42
8.1.1 #WD1-A RS232 SubConn ...................................................................................................... 43
8.1.2 #WD1-B Analog SubConn ...................................................................................................... 45
8.1.3 #WD1-C Voltage SubConn ..................................................................................................... 46
8.2 RS232/Analog glanded-NEP cable option (#WD2) ........................................................................... 47
8.2.1 #WD2-A RS232 glanded ......................................................................................................... 48
8.2.2 #WD2-B Analog glanded......................................................................................................... 50
8.2.3 #WD2-C Voltage glanded ....................................................................................................... 51
8.3 RS485/RS422/Analog SubConn connector option (#WD3) .............................................................. 52
8.3.1 #WD3-A RS485 SubConn ...................................................................................................... 53
8.3.2 #WD3-B Analog SubConn ...................................................................................................... 54
8.3.3 #WD3-C Voltage SubConn ..................................................................................................... 55
8.3.4 #WD3-D RS422 SubConn ...................................................................................................... 56
8.4 RS485/RS422/Analog glanded-NEP cable option (#WD4) ............................................................... 57

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8.4.1 #WD4-A RS485 glanded ......................................................................................................... 58
8.4.2 #WD4-B Analog glanded......................................................................................................... 59
8.4.3 #WD4-C voltage glanded ........................................................................................................ 60
8.4.4 #WD4-D RS422 glanded......................................................................................................... 61
8.5 RS485/Pressure SubConn connector option (#WD5) ....................................................................... 62
8.5.1 #WD5-A RS485 SubConn ...................................................................................................... 63
8.6 RS485/Pressure glanded-NEP cable option (#WD6) ....................................................................... 64
8.6.1 #WD6-A RS485 glanded ......................................................................................................... 65
8.7 SDI-12/Analog SubConn connector option (#WD7) .......................................................................... 66
8.7.1 #WD7-A SDI-12 SubConn ...................................................................................................... 67
8.7.2 #WD7-B Analog SubConn ...................................................................................................... 68
8.7.3 #WD7-C voltage SubConn ...................................................................................................... 69
8.8 SDI-12/Analog glanded-NEP cable option (#WD8)........................................................................... 70
8.8.1 #WD8-A SDI-12 glanded......................................................................................................... 71
8.8.2 #WD8-B Analog glanded......................................................................................................... 72
8.8.3 #WD8-C voltage glanded ........................................................................................................ 73
9 Connect to the calibration software .............................................................................74
9.1 Installing the probe for the first time .................................................................................................. 74
9.1.1 Install calibration module driver .............................................................................................. 74
9.1.2 Run NEP-OEM software ......................................................................................................... 76
9.2 Make the calibration connection with the sensor .............................................................................. 77
9.2.1 Serial number .......................................................................................................................... 79
9.2.2 Password ................................................................................................................................ 79
9.2.3 Sensor ID ................................................................................................................................ 79
9.2.4 Available sensor options ......................................................................................................... 79
10 Turbidity calibration .......................................................................................................80
10.1 When do you need to calibrate? ....................................................................................................... 81
10.2 Two-point calibration requirements ................................................................................................... 81
10.3 Before you begin calibration .............................................................................................................. 82
10.4 2-point calibration for 3 ranges .......................................................................................................... 84
10.4.1 Clean the sensor ..................................................................................................................... 84
10.4.2 Dry the sensor ......................................................................................................................... 84
10.4.3 Connect to the calibration software ......................................................................................... 84
10.4.4 Load the optical profile ............................................................................................................ 85
10.4.5 Set up zero-point calibration values for all ranges .................................................................. 87
10.4.6 Set up low-range top calibration value .................................................................................... 90
10.4.7 Set up mid-range top calibration value ................................................................................... 94
10.4.8 Set up high-range top calibration value .................................................................................. 98
11 Frequently Asked Questions (FAQ) - do/don’t ........................................................... 102
11.1 Calibration ....................................................................................................................................... 102
11.2 RMA Requests ................................................................................................................................ 102
11.3 SDI-12 ............................................................................................................................................. 103
11.4 Analog ............................................................................................................................................. 103
11.5 User maintenance: .......................................................................................................................... 103
11.6 Software .......................................................................................................................................... 103
11.7 Deployment ..................................................................................................................................... 103
12 Electrical conformity .................................................................................................... 104

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EC Declaration of Conformity according to Council Directive 2004/108/EC ..................... 104

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1 Applications
The NEP-5000 probes typical use includes applications such as:
1. Water quality
2. Food processing
3. Waste treatment
4. Environmental compliance for dredging operations
Which model is best used will be dependent on the application, the measuring environment, the logging
equipment and the monitoring period (deployment times) required.
Although advanced digital processing in the Analite NEP-5000 will effectively measure the true turbidity of
water when large particles are passing by the optical face, it is recommended to take steps to protect the
optical face from possible abrasive effects these particles may cause.
The Analite turbidity probes are not suitable in situations where they may be abraded by large particles
such as sand. Under these circumstances, the reading may become erratic due to the large particles
passing the optic sensor. Measuring turbidity under such potentially abrasive circumstances may require a
stilling well to allow the sand or other hard particles to settle away from the optic sensor in the probe tip.

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2 Safety
Always refer to the appropriate wiring diagram and apply appropriate power levels to the
sensor to avoid potential destruction of the sensor that may also harm you.
Do not connect anything potentially electrical to the metal body of the sensor as it may
result in electrical shocks that could harm you or destroy your instruments.
Do not attempt to force the wiper mechanism while operating or you may harm yourself
due to the higher torque level.
When using calibration solutions such as AMCO Clear®, StableCal® or formazin, avoid
skin/eye contact and do not consume the solution in any quantity.
Please check with your supplier or material specifications before using the sensor in an
unknown chemical.
Take appropriate precaution when handling or servicing pre-deployed sensors; they may
be exposed to radioactive and hazardous solutions.
After the end of the life of the product, please dispose of it according to your local
regulations or return it to the manufacturer.

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Status: Final | Not confidential
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3 Specification
Glanded sensor dimensions
Length
321.37mm
Diameter
31.70mm
SubConn sensor dimensions
Length
274.5mm
Diameter
31.7mm