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

Multifunctional microprocessor analyser for the analysis of the amount of iron in water with measuring range:

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

The analyser is complete with:
display of the measured hardness result.
2 programmable relay outputs: maximum value, alarm and/or fault
1 0(4) -20mA output: result of the analysis (linear hardness) and operation
1 digital input: start analysis.
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 program of operation control, 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® IQ:

Connection to the network:230V 50-60Hz (exactly: 85-264 Volt, 47-63 Hz)
Current consumption:25 VA
Degree of protection with support:IP 43
Degree of protection with mounting box:IP 54
Weight mounting on a plate:2.5 kg
Weight with mounting box:3 kg
Dimension with mounting plate:width. x height x depth 280x360x113 mm
Dimension with mounting box:width. x height x depth 300x390x130 mm
Amount of indicator in the bottle500 ml
Indicator consumption:5000 analysis with 1 bottle (500ml) measurement of water hardness
Outputs:2 relay outputs, max. 250V 4A (hardness alarm,
generic alarm, fault)
1 analogue output 0 (4) - 20mA (analysis result
or current device situation)
Entry:1 entry, maximum load 18V 12mA (STOP or START analysis)
SD card
Analysis interval:programmable 3 – 9.999 minutes
Quality of the water to be analyzed:
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, aluminum <0.1ppm, mangle <0.2ppm acid capacity K S4.3 <5mmol / l
Water pression:0,2-6 bar (2x104 – 6x105 Pa)
Drain:without pressure (funnel)
In / out water connection:6 mm flexible tube outer diameter

Indicators for DUROMAT® IQ

Water hardness measuring range (total hardness, residual hardness)

type°dH°fppm CaCO3mmol/l°equantityNr. ord
500S/5000,02 °dH0,04 °f0,4 ppm0,0040,02500 ml200852
500/5000,05 °dH0,09 °f0,9 ppm0,010,06500 ml200855
501/5000,1 °dH0,18 °f1,8 ppm0,020,1500 ml200860
502/5000,2 °dH0,36 °f3,6 ppm0,040,2500 ml200862
503/5000,3 °dH0,54 °f5,4 ppm0,50,3500 ml200863
505/5000,5 °dH0,9 °f9,0 ppm0,090,6500 ml200865
510/5001,0 °dH1,8 °f18 ppm0,181,2500 ml200870
520/5002,0 °dH3,6 °f36 ppm0,362,4500 ml200875
530/5003,0 °dH5,4 °f54 ppm0,543,7500 ml200876
550/5005,0 °dH9,0 °f90 ppm0,906,2500 ml200878

Alkalinity measuring range (carbon hardness, positive m value)

type°dH°fppm CaCO3mmol/l°equantityNr. ord
C-710/5001,0 °dH1,8 ° f500 ml200887
C-715/5001,5 °dH2,7 °f500 ml200889
C-720/5002,0 °dH3,6 °f500 ml200890
C-730/5003,0 °dH5,4 °f500 ml200891
with box
0,2 – 6 ate (2×104 – 6×105 Pa)
(indicator excluded from delivery)
85-264 Volt,
47-63 Hz 
mounted on a plate
0,2 – 6 ate (2×104 – 6×105 Pa)
(indicator excluded from delivery)
85-264 Volt,
47-63 Hz


Cleaning set: For road transport
For air transport
Coolers for water temperatures from 40 to 80 ° C
for water temperatures from 80 to 120 ° C

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