Turb 750 IR
WTW Turb® 750 IR fulfills the demands of many lab and industrial applications for a AQA supported turbidity measurement up to 1100 FNU/NTU. With the Intelligent Reproducibility and Plausibility-Check (IRPC) reliable findings are proven.
Measurement conforming to standards in drinking water, lab and industrial applications.
WTW Turb® 750 IR measures nephelometrically according to DIN EN ISO 7027-1 up to 1100 NTU/FNU with AQA support and PC documentation:
- Well proven WTW® optics with fast data output
- Multiple measurement and data evaluation with Intelligent Reproducibility and Plausibility Check (IRPC)
- Bench-saving despite comprehensive functionality
- Invincible price-/performance ratio
Turbidity stands for an indicator parameter on quality in drinking water, waste water process and many industrial applications. The measurement is support by:
- Measurement procedure fulfilling DIN EN ISO 7027-1 *)
- Function keys
- Comfortable menu-guided 3-point standard calibration
- Flexible calibration with 2-5 user-defined calibration points
- QuickCAL: 1-point-calibration at 10 NTU
- AQA, calibration interval and records with PC-documentation
*) For drinking water measurement acc. to US EPA 180.1 Turb® 750 T is the appropriate instrument.
More informationen in: "Turbidity An interesting parameter - Brief Overview, Measurement Tips & Tricks" and
in our video: "https://www.youtube.com/watch?v=UW4Mk0IrOww"
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Light source LED 830-890 nm acc. to DIN EN ISO 7027-1 acc. to standard methods DIN EN ISO 7027-1, DIN 38404 Modes Nephelometric (scattering 90°) Display Backlit graphics display 160x104 Keypad Foil keypad with tactile feedback alphanumeric entry option Range 0-1100 FNU/NTU Units FNU/NTU Resolution (Measurement resolution max. 0,02 NTU due to natural scattering of water; digital resolution >0,02 if optional ) 0,01 for 0,00 -9,99, 0,1 for 10 – 99,90, 1 for 100 - 1100 Accuracy NTU/FNU 0.01 NTU/FNU or +/- 2% of finding Repeatability < 0.5% of finding Reading modes Findings with Intelligent Reproducibility and Plausibility Check (IRPC),
rapid settlement samples supported by quick response time and IRPCResponse time 4 sec Calibration - options Automatic 3-P Kal, (Default), 2-5 P user calibration, QUICKCal Calibration protocol and interval setting yes / yes AQS-Support Calibration protocol and interval setting, AQA flag, Cal flag Data storage 2500 data sets with Cal protocol, AQA flag, GLP comliant data management with LIMS-connection Sample Identification yes - alphanumeric Air Purge no Firmware-Update yes via USB Interface RS 232, USB, Printer via PC or RS232 Storage condition instrument - 25 °C ... + 65 °C (13-149 °F) Operating Temperature Range +5 °C ... +55 °C (41-131 °F) with power plug connected: +5 °C ... +40 °C (41-104 °F) Data management GLP-compliant incl. PC software USB, RS232 Turb® Data Dimensions (H x W x D) ca. 290 x 190 x 80 mm Weight 1,1 kg Calibration Standards Longterm stable Cal.Kits for standard 3-P calibration; 0,02-10-1000; FNU/NTU; Polymer AMCO® Clear standards: longterm stability, higly precise, optimized to optics, production accuracy ± 1%, non-hazardous Vials , Sample Volume Vials 28 mm diameter, volume min. 15 ml; Borosilicate, cap: phenolic resin, PTFE coated sealing gasket.; NO SILICON OIL to cover scratches required for measurement procedure! Sample conditions sample temperature < 70°C (158°F) Power supply Wide range power supply with plugs for Euro, US, UK and Australia Certificates CE Delivery Lab turbidimeer Turb® 750 IR; 4 batteries 1,5 V Typ AA; Wide range power supply; cable USB-A to USB-B mini; 6 empty vials, sticker for orientation marking; Cal.Kit Turb® 430/750 IR; Cloth, quick guide, compact operation manual, CDROM with extended manual, CDROM with PC software Turb® Data; Inspection protocol
Case Studies
Municipal Wastewater Treatment · WTW — Stock Configuration Case
Customer Profile
The typical setting in Municipal Wastewater Treatment is the inlet, biological and outlet stages of a municipal plant. The measuring point is WTW; the focus is covering online and laboratory water analysis with WTW instruments.
Key Difficulties
Conditions are high solids and corrosive fractions, with large diurnal flow swings and, on top of that, effluent parameters drift and probes foul with sludge and biofilm, which a standard configuration cannot handle for long. The design therefore starts with selected by parameter set, range and digital sensor protocol.
Implementation
The scope ran through the stock channel: configuring from stock and delivered quickly. Technically it hinges on selected by parameter set, range and digital sensor protocol, and on these requirements: stable compliance with Grade 1A discharge limits and online data reporting.
Customer Benefit
In practice this means plug-and-play digital sensors that keep calibration when swapped, which cut the workload on the site maintenance team.
Food & Beverage · WTW — Stock Configuration Case
Project Background
The project covers dosing, pasteurising, filling and CIP stages. The work centres on WTW and the core task is covering online and laboratory water analysis with WTW instruments.
Operating Challenges
The medium and duty are characterised by syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. So WTW cannot be specified generically — it calls for selected by parameter set, range and digital sensor protocol.
Solution
The Ainstru engineering team worked through the stock channel: configuring from stock and delivered quickly. The configuration involves selected by parameter set, range and digital sensor protocol, with these requirements in view: food-safety and hygienic design per 3-A / EHEDG.
Results
Since start-up the system has run steadily; the practical result is plug-and-play digital sensors that keep calibration when swapped.
Chemical & Pharmaceutical · WTW — Stock Configuration Case
Project Overview
The site is reactors, metering vessels and finished-product tanks. The customer wanted WTW properly configured on the existing plant, with the aim of covering online and laboratory water analysis with WTW instruments.
Technical Challenges
What actually causes trouble is highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. All of this means the WTW configuration has to involve selected by parameter set, range and digital sensor protocol.
Configuration
Supply and installation were organised through the stock channel: configuring from stock and delivered quickly. On site this meant selected by parameter set, range and digital sensor protocol, checked line by line against: Ex certification and GMP traceability of records.
Performance
After commissioning the outcome is plug-and-play digital sensors that keep calibration when swapped, and the readings are now used for process tuning.
Power & Energy · WTW — Stock Configuration Case
Site Conditions
This is a Power & Energy customer whose plant is at boiler feedwater, turbine condensate and FGD/DeNOx systems. The main task was covering online and laboratory water analysis with WTW instruments.
The Problem
The difficulty lies in high temperature and pressure with both steam and saline water; at the same time drift under high temperature and pressure, with very costly unplanned outages. Specification therefore means selected by parameter set, range and digital sensor protocol.
What We Did
We took a stock channel approach — configuring from stock and delivered quickly. Delivery was built around selected by parameter set, range and digital sensor protocol, with point-by-point checks on: compliance with power-industry codes and unit availability targets.
Operating Outcome
In service the system performs as intended — plug-and-play digital sensors that keep calibration when swapped, with routine maintenance falling noticeably.
