Lovibond® MD100 Photometer – Cooling Water


NEW! Dedicated to Industrial Cooling Water analysis.

Industrial managers no longer need to use multiple kits with up to 13 different pieces of equipment! Simple-to-use, multi parameter instrument – no need to invest in a high-end, all-encompassing product.

Supplied in a case with all the user’s defined reagents and accessories, these photometers provide an efficient, portable and self-contained option for Boiler Water quality testing.

Re-circulating coooling water requires carefully chosen chemical treatments. This helps to minimise microbiological contamination, scaling of critical parts such as heat exchangers and to prevent corrosion. Testing the water quality assists with the correct dosage of chemicals, thus optimising costs, too.


  • Supplied pre-calibrated with test methods, simply add the appropriate Lovibond® reagent sets (tablets, powder packs and liquids).
  • Step by step instruction manual enables even photometer novices to quickly understand the procedures to ensure rapid and accurate results every time.
  • Easy-to-use with push-button technology, photometry is widely regarded as the simplest yet most accurate method to analyze water
  • Compact hand-held design
  • Waterproof to IP68
  • Accurate, reproducible results
  • Scroll Memory – the instrument memorizes the last method used before switching off the instrument. When the instrument is switched on again, the scroll list comes up with the last test method first
  • Zero Setting – the zero setting is held in memory (One Time Zero – OTZ). The zero setting can be confirmed whenever it is useful.
  • Automatic switch-off
  • Backlit display
  • Real-time clock and date
  • Certificate of Compliance supplied

Parameters Tested:

Aluminium 0.01 – 0.25mg/l AL
Bromine 0.05 – 13 mg/l Br2
Chlorine 0.01 – 6.0 mg/l Cl2
Chlorine 5 – 200 mg/l Cl2
Chlorine Dioxide 0.02 – 11 mg/l ClO2
Copper 0.3 – 5.0 mg/l Cu
Iron 0.03 – 2.00 mg/l Fe2+/3+
Molybdenum 0.03 – 3.0 mg/l Mo
Molybdenum 0.6 – 60 mg/l Mo
Ozone 0.02 – 2 mg/l O3
Sulfate 4.9 – 100 mg/l SO4
Triazole 1 – 16 mg/l Benzotriazole
Zinc 0.1 – 2.5 mg/l Zn


Two-year guarantee on the instrument
Product Code L0276240

LED’s, interference filters (IF) and photo sensor in transparent sample chamber. Depending on the version, up to 3 different interference filters are used.
Wavelength specifications of interference filters:
430 nm wavelength = 5 nm
530 nm wavelength = 5 nm
560 nm wavelength = 5 nm
580 nm wavelength = 5 nm
610 nm wavelength = 6 nm
660 nm wavelength = 5 nm

Wavelength accuracy approx. 1 nm
Photometric Accuracy 3% FS (T = 20 – 25 deg. C)
Photometric Resolution 0.01 A
Power Supply 4 micro batteries (AAA), capacity approx. 17 hours or 5 000 tests
Auto-Off automatic switch off
Display backlit LCD (on key press)
Storage internal ring memory for 16 data sets
Interfaces infrared interface for test data transfer
Additional feature real time clock and date
Calibration Factory calibration and user calibration
Dimensions 155 x 75 x 35 mm (L X W X H)
Weight approx. 260 g
Environmental Conditions

Temperature: 5 – 40 deg. C

Rel. Humidity: 30 – 90 %



  • Instrument in carrying case
  • 4 micro batteries AAA
  • 3 round glass vials with lids
  • User’s defined reagents
  • Guarantee sheet
  • Certificate COC
  • Step-by-step instruction manual

L0276240_md100 photometer_coolingwater

Additional information

Weight 0.00 kg