Duromat professional analyser

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Hardness analysis (total hardness, residual hardness)
and alkalinity of the water (carbonic hardness, positive m value)
(with graphic display)

colorimetric analyzer, with microprocessor for the control of water hardness with the following measuring ranges:

Water hardness (total and residual)

French degrees: 0.022 – 53.57 ° f
German degrees: 0.012 – 30 ° dH
English degrees: 0.02 – 37.59 ° e
ppm CaCO3: 0.22 – 534 ppm CaCO3
mmol / l: 0.002 – 5.3 mmol / l
mg / l: 0.22 – 534 mg / l

Alkalinity (carbon hardness, positive m value)

French degrees: 0.54 – 40.2 ° f
German degrees: 0.3 – 22.5 ° dH

Application (for example): control of water hardness after a softener, for the protection of a reverse osmosis system.
With display of the measured hardness and possibility of calibration with a calibration solution (optional) or calibration with water on site.

The analyser is complete with:
4 programmable relay outputs: maximum value one, maximum value two (or minimum value and maximum value), command for a cooler, for a washing valve, pump, error, missing indicator, remote signaling.
1 output 0 (4) -20mA: analysis result (linear hardness) and operation.
2 programmable digital inputs: water meter, turbine water meter (Hall), flow meter, external start or stop commands.
MODBUS connection.
CANBUS connection (optional).
SD card connection: data / results / error saving and transfer with date and time, software update.
A bad analysis can be repeated (just exceeded the maximum value, without giving an alarm signal)
Extensive function control program, relay drive, Leeds drive, accessory control.
Steps of an analysis cycle: opening an inlet solenoid valve – washing the measuring chamber for a settable time – checking the transparency of the water (zero point) – dosing the indicator by a peristaltic pump – result of the measured hardness (with display of the measured hardness) – final washing of the measuring chamber – the equipment stops waiting for the next analysis (timed, volumetric, manual or external signal start).

Certifications / instructions:
– CE certification
– documentation in English (on request: Italian, French, German etc.)

Technical data DUROMAT® professional:

Power connection:230V 50-60Hz (exactly: 85-264V, 47-63 Hz)
Current consumption:25 VA
Degree of protection on plate:IP 463
Degree of protection with box:IP 54
Weight mounted on a plate:2,5 kg
Weight mounted in box:3 kg
Dimensions mounted on plate:280x360x113 mm
Dimensions mounted in box:300x390x130 mm
Amount of reagent:500 ml
Inputs: 2 inputs, maximum load 18V 12mA (STOP or START analysis,
water meter
Relay outputs:4 outputs, maximum load 250V 4A (hardness alarm,
hardness pre-alarm, failure, lack of indicator,
analysis contact)
Other outputs:0 (4) -20mA hardness result or
appliance operation
MODBUS (CANBUS optional)
SD card (results, errors)
Analysis interval:programmable up 3 to 9.999 minutes
Washing time:programmable up 0,5 to 10 minutes
Water temperature: 5° - 40° C
Optically:transparent, without color, without suspended substances, without air bubbles and CO2
Chemically: pH 4 -10.5, iron <3ppm, copper <0.2ppm,
aluminium <0.1ppm, manganese <0.2ppm
acid capacity K S4.3 <5mmol / l
Water pression:0,2-6 bar
Inlet / drain water connection:6 mm external diameter hose

Available reagents, (always 500ml content):

Water hardness measuring range (total hardness, residual hardness)

200860501/5000,05-0,54 0,03-0,3°0,04-0,380,53-5,340,53-5,340,53-5,34
200862502/5000,11-1,07 0,06-0,60,075-0,751,067-10,71,067-10,71,067-10,7
200876530/5001,61-16,070,9 - 9,01,13-11,2816,02-160,216,02-160,216,02-160,2

Alkalinity measuring range (carbon hardness, positive m value)


(*) need for on-site calibration

DUROMAT® professional
mounted in a box
0,2 – 6 ate (2×104 – 6×105 Pa)
(indicator excluded from delivery)
Water hardness
(total hardness, residual hardness)
alkalinity (carbon hardness, positive m value)
85 – 264V 47-63Hz
DUROMAT® professional
mounted on a plate
85 – 264V 47-63Hz
0,2 – 6 ate (2×104 – 6×105 Pa)
(indicator excluded from delivery)
Water hardness
(total hardness, residual hardness)
alkalinity (carbon hardness, positive m value)
85 – 264V 47-63Hz

Accessories (not required for operation):


Cleaning set For road transport
For air transport
Areator, 230V 50-60Hz to remove the CO2 in the water 200020
Coolers for water temperatures from 40 to 80 ° C
for water temperatures from 80 to 120 ° C


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