MD 100 Chlorine HR (potassium iodide), tablet reagents

Precise Water Analysis in High-Quality Design

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Part Number 276170


  • Lightweight, rugged design for use in the field
  • Single unit construction with no parts to lose or break
  • Large, easy to read display
  • Industry specific parameter combinations available
The MD 100 is a single parameter colorimeter for water quality analysis. The rugged design makes this instrument completely portable and ideal for field use.
Utilizing the Potassium Iodide method for Total Chlorine testing, this colorimeter comes ready to use with Lovibond® Tablet reagents and other required accessories. It is ideal for disinfection and other industrial applications.



  • Boiler Water
  • Cooling Water
  • Disinfection Control
  • Pool Water Treatment
  • Raw Water Treatment
  • Waste Water Treatment

The MD 100 has several key features that make it a favorite among users.

  • Waterproof Design
    The IP 68 design of this instrument ensures that the MD 100 remains water tight for up to 1 hour at 0.1 meter.  Don't worry about dropping the instrument into a body of water - it floats!
  • Accurate, Reproducible Results
    The optical system of the MD 100 utilizes LEDs and interference filters which quickly gives you results that you can be confident in.
  • User Calibration Mode
    A one-point calibration is possible.  Additionally, all MD 100 instruments have the ability to display readings directly in ABS or %T units.
  • One-time-Zero Function
    Don't waste time waiting for your instrument to Zero after each test.  When testing a new sample, zero the instrument once and all subsequent tests of that sample do not require you to re-zero the instrument.
  • Automatic Data Storage with Transfer Capabilities
    The MD 100 automatically stores the last 16 readings with time and date stamp.  These results can be transferred to a spreadsheet using the IRiM accessory.
  • Ergonomic Design
    Whether you're using the MD 100 out in the field or in the lab, the design of the instrument  makes it easy to handle and view the display.   If you're using the instrument in the lab, the rubber feet on the bottom of the housing eliminates the need for two hand operation or to chase your instrument around the workbench.
  • Factory Programmed
    All MD 100 instruments are supplied ready to use with up to 14 calibration curves.  All you need to do is select the test you need, prepare your sample and test!
  • Scroll Driven Menu System
    The simple interface allows you to quickly reach the test you need.  When the instrument is turned on, it will automatically display the last test used.
  • 2-Year Manufacturer's Warranty
Optics LEDs, 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 Δλ = 5 nm
530 nm Δλ = 5 nm
560 nm Δλ = 5 nm
580 nm Δλ = 5 nm
610 nm Δλ = 6 nm
660 nm Δλ = 5 nm
Wavelength Accuracy ± 1
Photometric Range -2500 - 2500 mAbs
Suitable Vials Round Cuvettes 24 mm
Display backlit LCD (on keypress)
Interfaces Infrared
Operation Foil keypad
Calibration factory calibration and user calibration. Reset to factory calibration possible
Internal Storage internal ring memory for 16 data sets
Power Supply 4 micro batteries (AAA)
Battery Life Time approx. 17 hours
Clock Real Time Clock and Date
Portability Portable
Compliance CE
Dimensions 6.1 x 2.95 x 1.38"
Weight 260 g
Testparameter Measuring Range Method No. Chemical Method
Chlorine HR (KI) T (105) 5 - 200 mg/L Cl2 M105 KI / Acid
Title Measuring Range Chemical Method Packaging Unit Part Number Add to quotation cart
Chlorine HR (KI) 5 - 200 mg/L Cl2 KI / Acid Tablet / 100 513000BT
Chlorine HR (KI) 5 - 200 mg/L Cl2 KI / Acid Tablet / 250 513001BT
Acidifying GP 5 - 200 mg/L Cl2 KI / Acid Tablet / 100 515480BT
Acidifying GP 5 - 200 mg/L Cl2 KI / Acid Tablet / 250 515481BT
Set Chlorine HR (KI)/Acidifying GP 100 Pc. 5 - 200 mg/L Cl2 KI / Acid 100 each 517721BT
Set Chlorine HR (KI)/Acidifying GP 250 Pc. 5 - 200 mg/L Cl2 KI / Acid 250 each 517722BT
Chlorine HR (KI) 5 - 200 mg/L Cl2 KI / Acid Tablet / 100 501210
Chlorine HR (KI) 5 - 200 mg/L Cl2 KI / Acid Tablet / 250 501211
Title Online Download Type Format Language Direct Download
Datasheet 276170 - MD 100 Chlorine HR (potassium iodide), tablet reagents Datasheet PDF (0.20 MB)
Instruction Manual Instruction Manual PDF (10.95 MB)
Instruction Manual Single Method M105 - Chlorine HR (KI) T (105) Instruction Manual PDF (1.55 MB)
00386444 - MD1x0/200 - Chlorine HR (KI) T (105) Instruction Manual PDF (4.08 MB)
Data Acquisition Software Firmware ZIP (124.72 MB)
EU-Declaration of Conformity Declaration of Conformity PDF (0.19 MB)
  • Instrument in plastic case
  • 100 tablet reagents Chlorine HR (KI)
  • 100 tablet reagents Acidifying GP
  • Adapter for ø 16 mm cuvettes
  • 4 micro batteries (AAA)
  • 2 round cuvettes ø 16 mm (glass) with lid
  • Stirring rod
  • Brush
  • Syringe (10 ml)
  • Instruction manual
  • Quick Start Guide
  • Certificate (COC)
  • Warranty information
Title SDS Country Direct Download
Acidifying GP
Chlorine HR (KI) _ KT26 - CL2A