
Lovibond MD100P Photometer Silica LR
The MD 100 range of Photometers are portable handheld instruments. A simple button layout, robust waterproof design and large backlit display make the MD 100 easy to use and ideal for testing in the field, laboratory or plant room.
The units supply accurate, reproducable results using high quality interference filters with long-life LEDs as a light source. Tests are conducted using Lovibond® tablet reagents which give long-term stability and a guaranteed minimum 5 or 10 year shelf life. VARIO powder reagents or liquid reagents can also be used.
This instrument is pre-programmed with three testing ranges and methods for Silica, making it ideal for a variety of applications and industries. Choose between using Lovibond® Tablet reagents or VARIO Powder Pack Reagents, depending on the range selected.
Test results are automatically stored with time and date for later review, and can also be downloaded to a PC using an additional Infra Red interface.
Applications: Boiler Water, Raw Water Treatment
Range:Silicate LR PP 0.1 - 1.6 mg/L SiO2
Delivery Content
Instrument in plastic case
VARIO LR Silica Amino Acid Powder Pack
VARIO Silica Citric Acid Powder Pack
VARIO Molybdate 3 Reagent Solution
4 micro batteries (AAA)
3 round cuvettes (glass) with lid
Sealing rings
Stirring rod
Brush
Instruction manual
Quick Start Guide
Certificate (COC)
Warranty information
Technical Data
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
Photometric Accuracy: 3 % FS (T = 20 °C – 25 °C)
Operation: Foil keypad
Display: backlit LCD (on keypress)
Suitable Vials: Round Cuvettes 24 mm
Calibration: factory calibration and user calibration. Reset to factory calibration possible
Interfaces: Infrared
Internal Storage: internal ring memory for 16 data sets
Power Supply: 4 micro batteries (AAA)
Battery Lifetime: approx. 17 hours
Auto – OFF: Yes
Clock: Real Time Clock and Date
Portability : Portable
Environmental Conditions : Temperature: 5 - 40 °C rel. humidity: 30 - 90 % (non condensing)
Compliance : CE
Protection Class : IP 68
Dimensions: 155 x 75 x 35 mm
Weight: 260 g
NOTE:
There has recently been an amendment to the UK Poisons Act 1972 regarding the supply of Explosives precursors which comes into effect from October 1st 2023 and covers the supply of certain materials.
In order to comply with these regulations we kindly ask that you complete the following actions as quickly as possible in order to avoid disruption to supply.
- Please complete this form, along with a copy of a photographic ID (such as a passport, driving licence, trade ID card, business ID card) for the individual that your company authorises to purchase these materials.
- You will need to understand your legal obligations under the Act, particularly in regard to the reporting of loss, theft or suspicious activity.
- If you are reselling these materials then you may need to obtain and retain the same information from your customers.
Further information can be found at https://www.gov.uk/government/publications/supplying-explosives-precursors/supplying-explosives-precursors-and-poison
Sku: 276115

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.