Do you have a Hach DR900? Have you lost the ability to view and access it's stored programs?
There is a potential for the Hach DR 900 to lose the ability to view and access its stored programmes. This is a result of the internal data log overwriting the stored programme file. This will most likely occur on instruments that have performed in excess of 1,700 tests. In addition, th...
The DR1900 by Hach is a portable spectrophotometer with over 220 pre-programmed test methods, accepting the Hach and the Lange chemistry. It is rugged and has a large, clear screen, with easy to use navigation, making it great for use in the field. [caption id="attachment_15657" align="aligncenter" width="300"] The DR1900 portable spectrophotometer[/caption] The DR1900 will accept the followi...
The DR900 by Hach is a robust, portable colorimeter, capable of performing many dozens of different tests, supporting the Hach chemistry type. It can accept a number of different sizes cuvettes/samples cells – 1 inch round sample cells 1cm sample cells 16mm COD/TNT vials [caption id="attachment_15641" align="aligncenter" width="300"] Hach DR900 colorimeter[/caption] Every Hach method c...
The DR300 by Hach is a robust, portable single parameter colorimeter. It is the follow on from the Pocket colorimeter II which has been discontinued for most parameters - offering improved waterproofing, a large display and ergonomic design combined with optional Bluetooth and system integration. This unit is available in two formats – a single wavelength (either 500, 528, 600, 655nm) or pre-pr...
Turbidity meters are used to quickly measure the turbidity (or cloudiness) of water, caused by suspended solid particles.
Understanding how turbidity meters work can help in achieving more accurate results and ensuring the samples and meter are handled correctly.
[caption id="attachment_8711" align="aligncenter" width="443"] Turbidity standards, used in calibrating turbidity meters[/capti...
With high speed digestion technology (HSD), the HT200S is a great solution for the busy lab, speeding up digestion times for a range of tests, saving time and money. It can produce COD results in just 35 mins, which is a massive time saving of around 2 hours and it can heat from 20°C to 148°C in just 8 minutes (20% faster than the LT200). Cooling of the vials occurs in 13 minutes or under by m...
A.Trying to pick out the correct test can prove to be a challenge. There are a number of different tests available from Hach to test for Iron and you will need to select the most appropriate test for the specific form of iron you are testing for. Iron can be present in natural and treated water. The presence of excess iron can have negative impacts for instance insoluble deposits (rust) can ...
Phosphate tests are often stated as reporting Orthophosphate or Total Phosphorous, but can also give other parameters like Acid Hydrolyzable Phosphates.
We've taken a look at the definitions behind these terms, so you can tell which Phosphorous or Phosphate test to use.
What are Phosphates and Phosphorous?
The element Phosphorous, P, exists in water courses in a wide range of forms...
Q: Our turbidity meter comes supplied with a bottle of silicone oil. What is this for? Why is it important in the test?
[caption id="attachment_11631" align="aligncenter" width="163"] Silicone oil is often supplied with turbidity meters, but what is it used for, and why is it important to the test?[/caption]
A: The silicone oil is used to ensure the glass vial used in the turbidity me...
Q: I am looking for a new benchtop turbidity meter, but Hach offer two versions - the TL23 series and the TU5 series.
Which turbidity meter should I choose?
What is the difference between the TU5 and TL23 models?
A:Â There are many differences between the two ranges, as explored below;
Overview
TL23 Series - for a wider range of applications, a lower cost option using traditio...
The popular 2100N and 2100AN series of turbidimeters (turbidity meters) are being phased out and discontinued.
They are replaced by the new TL23 series which offers some great additional features - we've taken a look at what the TL23 series offers over the 2100 series.
[caption id="attachment_10963" align="aligncenter" width="672"] The 2100 series turbidimeters are being replaced by the n...
We've rounded up the best 5 pH meters of the year - each has brilliant features and extras which have made them stand out as some of the best selling pH meters of 2016.
5. Best for field work - Hach HQ30D / HQ40DÂ pH meters
[caption id="attachment_10811" align="alignright" width="222"] The Hach HQ40D multiparameter meter in use[/caption]
With rugged probes and long cable probe (up to 30m) optio...
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I came across your article about "DPD Tablets" on Camlab Info, and it's a valuable resource for anyone seeking information about water testing and analysis using DPD tablets. Your explanation of their usage and significance in water quality monitoring is quite informative.
This article on nanocolor tube tests is a gem for analytical enthusiasts. The idea of zero calibration is intriguing, and your detailed explanation makes it accessible. The step-by-step process helps demystify the technique for beginners like me. The use cases you've highlighted, particularly in...
Grant have introduced the new Controlled Rate Freeze Thaw (CRFT), which is a liquid nitrogen and cryogen free controlled rate freeze and thaw system for cryopreservation in a wide range of applications. Cryopreservation is a process where biological materials such as cells, tissues...
A dipslide is a means of testing the microbial content of liquids. This is a common method of monitoring and measuring microbial activity within many systems and commonly cooling systems. Usually the use of a dipslide is the first line of defence for the testing of microbial issues that could be...
Purchasing items using donated funds without the burden of VAT will now save many Millions of pounds each year which can be put to better use in advancing scientific knowledge to provide new treatments and cures that will shape the medicines of the future.
Working with pressure/vacuum conditions in the lab is common but not all products are designed to withstand this. Products with appropriate geometry and wall thickness are suitable for working safely with pressure. For example, filtering flasks, desiccators, or flat flange vessels, as well as...
