Observator Instruments Analite NEP-5000 User manual

Observator Instruments Copyright 2019 ©
Page 1
Nep-5000 General Information
Manual
Version 2019-08-29 – August 2019
Author: Observator Instruments
NEP-5000 MANUAL
ABN 56 007 283 963
8-10 Keith Campbell Court, PO Box 9039
Scoresby, VIC 3179 AUSTRALIA
Tel: [phone], Fax: [phone]
Email: [e-mail]
Web: www.observator.com

NEP-5000 MANUAL
V2019-08-29
Observator Instruments Copyright 2019 ©
Page 2
Document History
Paper copies are valid only on the day they are printed. If you have any questions regarding
this document, please contact Observator Instruments.
Reference Documents
Document
Download from
Author
Software
https://Analite.com.au/NEP-5000/Software
Niran
Pelpola
CFG files
https://Analite.com.au/NEP-5000/CFG
Niran
Pelpola
Datasheet
https://analite.com.au/NEP-5000/Spec
Ludovic
Grosjean
Manual
https://Analite.com.au/NEP-5000/Manual
Ludovic
Grosjean
NEP-5000
Application
Notes
NEP-5000-SDI12 option with Campbell logger:
https://analite.com.au/NEP-5000/Application-Note
NEP-5000-SDI12 option for H-522+ & H-500XL loggers:
https://analite.com.au/NEP-5000/Application-Note
NEP-5000-SDI12 option with Hydrospider logger:
https://analite.com.au/NEP-5000/Application-Note
NEP-5000-SDI-12, RS485 and Analogue: wiper operations
https://analite.com.au/NEP-5000/Application-Note
NEP-5000 Multi-Point Calibration
https://analite.com.au/NEP-5000/Application-Note
Firmware-updating-procedure:
https://analite.com.au/ANALITE/Application-Note
Ludovic
Grosjean
ANALITE
Application
Note
Pressure Calibration:
https://analite.com.au/ANALITE/Application-Note
Shroud Installation:
https://analite.com.au/ANALITE/Application-Note
Temperature Calibrat i o n :
https://analite.com.au/ANALITE/Application-Note
Wiper Replacement:
https://analite.com.au/ANALITE/Application-Note
Ludovic
Grosjean

NEP-5000 MANUAL
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Revision History
Version
Amendments
Author
V2017-08-07
Initial document creation
Ludovic Grosjean
V2018-04-01
Edited overall content
Ludovic Grosjean
Niran Pelpola
V2018-04-09
Introduced document control
Ludovic Grosjean
V2019-03-06
Added reference documents
Ludovic Grosjean
V2019-03-15
Integrated 2-point calibration information
Compress Document Images
Added additional reference documents
Ludovic Grosjean
V2019-03-17
Added Reference Documents
Ludovic Grosjean
V2019-07-02
Grammar review
Samantha Bray
V2019-08-16
Edited packing list
Ludovic Grosjean
V2019-08-29
Edited packing list
Ludovic Grosjean
Procedure sign-off:
Date
Role
Role
2018-04-09
Author
Ludovic Grosjean
2019-08-27
Approver
Dana Galbraith
Distribution list
Date
Company, Position
2019-08-28
Observator Instruments (Australia)
Dana Galbraith
Niran Pelpola
Samantha Bray
Stewart Neale

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INDEX
INDEX ............................................................................................................................................ 4
1. NEP-5000 INTRODUCTION ..................................................................................................... 8
2. APPLICATIONS ....................................................................................................................... 9
3. SAFETY ................................................................................................................................. 10
4. SPECIFICATION ..................................................................................................................... 11
5. WHAT YOU FIND IN THE BOX ............................................................................................... 14
6. ACCESSORIES ....................................................................................................................... 15
7. HOW TO USE THIS MANUAL (WHERE TO BEGIN?) ................................................................ 17
7.1. Default settings ................................................................................................................... 17
7.2. Finding the correct wiring diagram for your sensor .............................................................. 18
7.3. How to configure and calibrate your sensor ......................................................................... 18
7.4. What is required for your calibration and configuration ....................................................... 19
7.4.1. Subconn options only .................................................................................................. 19
7.4.2. Glanded-NEP options only ........................................................................................... 20
7.5. Connect the calibration module ........................................................................................... 21
8. NEP-5000 CAPABILITIES ....................................................................................................... 22
8.1. Features in measuring .......................................................................................................... 22
8.1.1. Single range measurement .......................................................................................... 23
8.1.2. Auto-range measurement ............................................................................................ 23
8.2. Features in communication .................................................................................................. 24
8.2.1. Periodic data Free-flow ................................................................................................ 24
8.2.2. Data-request mode (Polled-mode) ............................................................................... 26
8.2.3. SDI-12 mode ................................................................................................................ 29
8.2.4. Measurement via Analog Interface .............................................................................. 32
8.3. Optical wiper: Features and Configurations ......................................................................... 35
8.3.1. Basic optical wiper configuration ................................................................................. 35
8.3.2. Recommended method of triggering the optical wiper using a dedicated wiper wire .. 36
8.3.3. Available optical wiping options for output configurations .......................................... 37
9. PINOUT & WIRING DIAGRAM .............................................................................................. 38
9.1. RS232/Analog Subconn connector option (#WD1) ............................................................... 39
9.1.1. #WD1-A RS232 Subconn .............................................................................................. 40
9.1.2. #WD1-B Analog Subconn ............................................................................................. 42
9.1.3. #WD1-C Voltage Subconn ............................................................................................ 43
9.2. RS232/Analog Glanded-NEP cable option (#WD2) ................................................................ 44

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9.2.1. #WD2-A RS232 Glanded .............................................................................................. 45
9.2.2. #WD2-B Analog Glanded ............................................................................................. 47
9.2.3. #WD2-C Voltage Glanded ............................................................................................ 48
9.3. RS485/RS422/Analog Subconn connector option (#WD3) ................................................... 49
9.3.1. #WD3-A RS485 Subconn .............................................................................................. 50
9.3.2. #WD3-B Analog Subconn ............................................................................................. 51
9.3.3. #WD3-C Voltage Subconn ............................................................................................ 52
9.3.4. #WD3-D RS422 Subconn .............................................................................................. 53
9.4. RS485/RS422/Analog Glanded-NEP cable option (#WD4) .................................................... 54
9.4.1. #WD4-A RS485 Glanded .............................................................................................. 55
9.4.2. #WD4-B Analog Glanded ............................................................................................. 56
9.4.3. #WD4-C Voltage Glanded ............................................................................................ 57
9.4.4. #WD4-D RS422 Glanded .............................................................................................. 58
9.5. RS485/Pressure Subconn connector option (#WD5) ............................................................. 59
9.5.1. #WD5-A RS485 Subconn .............................................................................................. 60
9.6. RS485/Pressure Glanded-NEP cable option (#WD6) ............................................................. 61
9.6.1. #WD6-A RS485 Glanded .............................................................................................. 62
9.7. SDI12/Analog Subconn connector option (#WD7) ................................................................ 63
9.7.1. #WD7-A SDI-12 Subconn .............................................................................................. 64
9.7.2. #WD7-B Analog Subconn ............................................................................................. 65
9.7.3. #WD7-C Voltage Subconn ............................................................................................ 66
9.8. SDI12/Analog Glanded-NEP cable option (#WD8) ................................................................ 67
9.8.1. #WD8-A SDI-12 Glanded .............................................................................................. 68
9.8.2. #WD8-B Analog Glanded ............................................................................................. 69
9.8.3. #WD8-C Voltage Glanded ............................................................................................ 70
10. CONNECT TO THE CALIBRATION SOFTWARE ........................................................................ 71
10.1. Install the probe for the first time ........................................................................................ 71
10.1.1. Install Calibration module driver ................................................................................. 71
10.1.2. Run NEP-OEM software ............................................................................................... 73
10.2. Make the calibration connection with the sensor ................................................................ 74
11. TURBIDITY CALIBRATION ..................................................................................................... 77
11.1. When do you need to calibrate? ........................................................................... 78
11.2. Two-point calibration requirements ..................................................................... 78
11.3. Before you begin calibration ................................................................................. 79
11.4. 2-point calibration for 3 Ranges ............................................................................ 81
11.4.1. Clean the sensor .......................................................................................................... 81

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11.4.2. Dry the sensor ............................................................................................................. 81
11.4.3. Connect to the calibration software ............................................................................. 81
11.4.4. Load the optical profile ................................................................................................ 82
11.4.5. Set up Zero Point Calibration Values for all ranges ....................................................... 84
11.4.6. Set up low-range top calibration value ........................................................................ 87
11.4.7. Set up mid-range top calibration value ........................................................................ 91
11.4.8. Set up high-range top calibration value ....................................................................... 95
12. FREQUENTLY ASKED QUESTIONS (FAQ) - DO/DON’T ............................................................ 99
13. ELECTRICAL CONFORMITY ................................................................................................... 101
EC Declaration of Conformity according to Council Directive 2004/108/EC .................................. 101
14. SERVICE & SUPPORT COVERAGE ........................................................................................ 102
Warranty conditions ................................................................................................................... 103
Contact & more information ....................................................................................................... 103

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1. NEP-5000 INTRODUCTION
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 (approx. 328 feet).
The NEP-5000 turbidity probes use 90° optics and employs infra-red light in
accordance with 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 2018

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2. APPLICATIONS
The NEP-5000 probes typical use include 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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3. 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 Formazyn, 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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4. SPECIFICATION
Glanded sensor dimensions
Length
321.37mm
Diameter
31.7 mm
don
Subconn sensor dimensions
Length
274.5mm
Diameter
31.7 mm

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Mechanical
Weight
NEP-5000 Delrin models 300 grams – probe only*
NEP-5000 Metal models 770 grams – probe only*
*100gms connector plus 70 grams per meter of cable
Case Construction
Delrin Composite casing is standard
316 Stainless Steel
Titanium
Anti-Biofoul CW352H 70/30% Copper/Nickel
Cable
Glanded-NEP cable specification:
7 core + shield, 6mm nominal dia. PUR sheath.
Conductor resistance 45 ohms per km. Weight - 70
grams per meter.
Subconn connector cable specification:
6-conductor inline cable, 16 AWG, 1.34mm2
Cable Length
Standard Glanded-NEP cable length to be specified at
time of order. Per meter price applies. Maximum cable
length is 200m. Length depends on the selected
communication protocol.
Depth Rating
200m (660ft), Non-wiping
100m (330ft), Wiping
Operating Temp.
-10°C to 40°C.
Storage Temp.
-20°C to 50°C.
Measurement
Technique
90° modulated infra-red (ISO7027) is standard
180° backscatter modulated infra-red is optional
Ranges for 90° (3 Preset Range
Groups)
Low (example 0-10/20/100NTU)
Medium (example 0-100/400/1,000NTU)
High (example 0-1,000/3,000/5,000NTU)
Ranges for 180° (3 Preset Range
Groups)
Low (example 0-1,000/5,000NTU)
Medium (example 0-10,000NTU)
High (example 0-30,000NTU)
Recommended Range Versions
V1 NTU ranges: 10, 400, 1,000
V2 NTU ranges: 10, 400, 5,000
V3 NTU ranges: 100, 1000, 5,000
V4 NTU ranges: User specified
Custom Ranges
Available
Range Hopping (Auto-Range)
Available

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Specification
Accuracy including linearity &
temperature drift
±1% at 25°C, up to 5,000NTU
Zero Drift
Less than ±0.2NTU
Calibration
Factory calibrated using non-toxic AEPA polymer
solutions
Power
8-30 VDC, 15mA on. 25mA reading and 60mA
wiping
Settling Time/Measurement
Acquisition Time
Single range (2-4s), Auto-range (4-6s)
Wiping
Wiping is configurable via the PC configuration tool
such as: wiping mode, timeout, power on wipe.
Wipe Time
8 seconds in single direction wipe mode
12 seconds for return wipe mode
18 seconds for scrubbed wipe mode
Resolution
Range
Resolution
Up to 100NTU
±0.01NTU
Up to 400NTU
±0.1NTU
Up to 1,000NTU
±1.0NTU
Up to 5,000NTU
±2.0NTU

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5. WHAT YOU WILL FIND IN THE
BOX
When the product is delivered, this is what you will find in the box:
Items found in the box
Figure 5.A.
NEP-5000 Probe
NEP-CBL - Probe cable in meters.
Figure 5.B.
Blue box calibration module
and USB cable*
Module and PC configuration and
calibration software.
NEP-CFG
(*) on your first NEP-5000 order only
Figure 5.C.
Subconn Female Pigtail**
NEP-CFG-SF
(**) Only included in the shipment when
the NEP-5000 has a male Subconn
connector. Wiring is different for SDI-12
and RS422/RS485.
Figure 5.D.
USB Key
Figure 5.E.
Yellow cap
Figure 5.F.
Wiper replacement kit
NEP-WIPER-KIT - comprising of 4 silicon
wipers and a hex fastening key

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6. ACCESSORIES
Observator Instruments offers a wide range of
accessories for the NEP-5000 range of products
directly available from the website:
Accessories
Figure 6.A.
Case
Figure 6.B.
Wiper replacement kit
NEP-WIPER-KIT - comprising of 4
silicon wipers and a hex fastening key
Figure 6.C.
Shroud
NEP-SHRD-D - Delrin protective shroud
NEP-SHRD-C - Copper protective
shroud
NEP-SHRD-S – Stainless Steel
protective shroud
NEP-SHRD-T - Titanium Protective
shroud
Figure 6.D.
Calibration kit for Glanded
probes
NEP-CFG - comprising of a blue box
calibration module and USB cable

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Accessories
Figure 6.E.
Calibration kit for Subconn
probes**
NEP-CFG-SF - comprising of a blue box
calibration module, USB cable and a
Subconn Female Pigtail
(**) Only for NEP-5000 with male
Subconn connector. Wiring is different
for SDI-12 and RS422/RS485.
Figure 6.F.
Calibration solutions
NEP-CAL-GSF
Figure 6.G.
Brown bottle for calibration
NEP-CAL-BTL
Figure 6.H.
NEP-5000 connection cable
NEP-USB-CON
Figure 6.I.
SubConn Connector and cable
assembly
NEP-CBL-CON

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7. HOW TO USE THIS MANUAL
(WHERE TO BEGIN?)
All NEP-5000 sensors come with default factory settings which are unique to each sensor
variation of the NEP-5000. Users may also request desired settings at the time when placing
the order.
7.1. Default settings
The default settings for each NEP-5000 Glanded & Subconn configuration are as follows:
Figure 7.1.A: Default settings for each NEP-5000 configurations
Note: If satisfied with the current default settings or pre-ordered configurations from the factory,
the user does not need to use the calibration software nor do they require to do any changes
to the settings.
SUB-RS232
/Analog
SUB-RS485
/RS422/Analog
SUB-RS485-
Pressure
SUB-SDI-12
/Analog
Calibration
Multi-point
Multi-point
Multi-point
Multi-point
Measurement
mode
Auto
Auto
Auto
Auto
Statistical
package
5 measurement
length
5 measurement
length
5 measurement
length
5 measurement
length
Optical-wiper
Single direction
Single direction
Single direction
Single direction
Power on
wipe
Yes
Yes
Yes
Yes
Digital data
mode
RS232 Free-flow
RS422 Free-flow
RS485 Polled
SDI-12 Command
mode
Sensor
address
1
1
1
SDI-12
address
0
Analog
Output
Off
Off
Off

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7.2. Finding the correct wiring diagram for
your sensor
To find out the appropriate wiring diagram for calibration and general use, the user may refer
to the table on Chapter 9 “PINOUT & WIRING DIAGRAM”. This selection table also includes
reference to the recommended wiring diagrams via tag markers (#WD1 to #WD8).
7.3. How to configure and calibrate your
sensor
The NEP-5000 offers easy configuration methodology using single wire (one-wire)
communication to the configuration software. Using this configuration, the user only requires to
connect 3 wires during the time of the calibration process.
To facilitate trouble free communication with the PC, Observator Instruments provides a module
called “Calibration Module” that converts one wire calibration data to USB and generates
12VDC from available USB 5V.
Note: The calibration module that plugs into the USB port must be able to provide more than
200mA at 5V. If not, the user may provide external power using 12VDC, 500mA plug-pack.

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7.4. What is required for your calibration
and configuration
NEP-5000 sensors come with Subconn or Glanded-NEP cable options. This section describes
the equipment required to connect each sensor option to the calibration module.
7.4.1. Subconn options only
1. Connect your NEP-5000 Subconn option to the Subconn Female Pigtail provided in
your NEP-5000 kit (Figure 7.4.1.A).
Figure 7.4.1.A: Probe connection to Subconn Female Pigtail
2. Connect the Subconn Female Pigtail to the blue box calibration module (refer to
Section 7.5 “Connect the calibration module”.
Figure 7.4.1.B: Example of Configuration for Subconn SDI-12 Probes
Note: Always be mindful of following the correct Pinout which changes based on your probe
configuration
1
Detail #1
SCALE 2:1

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7.4.2. Glanded-NEP options only
1. Connect the Subconn Female Pigtail to the blue box calibration module (refer to
Section 7.5 “Connect the calibration module”.
Figure 7.4.2.A: Example of Configuration for Glanded SDI-12 Probes
Note: Always be mindful of following the correct Pinout which changes based on your probe
configuration