Portable meter for sludge interface level Mod.HANDY 7900

Designed for spot measurements of the interface sludge level in sedimentation basins, it is suitable for the use in wwtp and in all those process where sedimentation basins are used.   This analyser is composed of an immersion probe, an electronic unit and a connecting cable.
The immersion probe is an optical sensor including IR light source and IR light receiver (positioned at an angle of 180° from each other).     The probe is made of PVDF and is very sturdy;  the cable is sealed into the probe and cable outlet is from watertight cable gland: so forth the probe can be immersed down to 5 m; the special reinforced cable-to-probe connection assures great  protection against all possible mechanical stresses due to immersion and lifting of the probe operated using the cable.  For this purpose the polyurethane cable, length 6 meters,  is internally Kevlar reinforced.
The portable electronic unit   is very sturdy and  handy; it includes a slide switch for power ON and power OFF, a trimmer for the sensitivity adjustment, a LED and a buzzer for the indication of the sludge interface level.
Power supply is from rechargeable battery,  8,4 V, 170 mA/h (average autonomy is 1h 15min with lit display). The instrument accepts a 12 VDC auxiliary power supply (rear connector) that is also used to charge the battery.
The analyser is supplied c/w a properly dimensioned  carrying case  with waist belt including  fixing strips for the probe and for the cable.   This system leaves the operator hands free while he moves to reach the measuring position.  The electronic unit can be used directly inside the case so that during measures  it is fixed on the operator waist belt, therefore the operator has always a hand free during the measure.
Operating temperature limits are 5 to 50 °C, with relative humidity 0-90% non condensing.
The analyser is factory calibrated.   Before each the use connect the probe and adjust sensitivity if required. 

Portable Dissolved Oxygen Analyser Mod.HANDY 3300

Designed for dissolved oxygen measurements in basins channel and tanks, in biological treatment plants, in fish breeding, and for all spot DO measurements  directly operated into the process, this analyser is composed of an immersion probe, an electronic unit and a connecting cable.
The immersion probe includes a polarographic measuring system, made of Pt-Ag electrodes immersed in a specific electrolyte solution and  separated from the process fluid by a PTFE membrane permeable to gaseous oxygen.  The electrodes dimensions and the membrane characteristics have been defined in order to obtain  a very good sensitivity and  short response time even at few ppb concentrations. 
The probe is made of PVDF and is very sturdy;  the cable is sealed into the probe and cable outlet is from watertight cable gland: so forth the probe can be immersed down to 5 m; the special reinforced cable-to-probe connection assures great  protection against all possible mechanical stresses due to immersion and lifting of the probe operated using the cable.  For this purpose the polyurethane cable, length 6 meters,  is internally Kevlar reinforced.
The portable, microprocessor based, electronic unit   is very sturdy and  handy, has a wide, good visibility, OLED display and a watertight membrane keypad.  The instrument receives D.O. and temperature signal from the probe, operates the temperature compensation of the measure and displays D.O. value  and sample temperature.
Power supply is from rechargeable battery,  8,4 V, 170 mA/h (average autonomy is 1h 15min with lit display). The instrument accepts a 12 VDC auxiliary power supply (rear connector) that is also used to charge the battery.
The analyser is supplied c/w a properly dimensioned  carrying case  with waist belt including  fixing strips for the probe and for the cable.   This system leaves the operator hands free while he moves to reach the measuring position.  The electronic unit can be used directly inside the case so that during measures  it is fixed on the operator waist belt, therefore the operator has always a hand free during the measure.
Measuring range  is 0-20,000 ppm with 1 ppb  resolution and  ± 5 ppb accuracy
Operating temperature limits are 5 to 50 °C, with relative humidity 0-90% non condensing; operating pressure limits up to 6 bar
The weight of probe with integral cable is approx 600 g; the electronic unit weights approx.  350 g; probe dimensions are  42 mm diameter, 240 mm length;  electronic unit: 48x96x100 mm.
The analyser is factory calibrated.   Before the use connect the probe and operate a calibration.  The instrument includes a dual point calibration procedure, zero point is calibrated in the zero calibration solution supplied with the analyser while the span is very easily calibrated in air.
Membrane and electrolyte replacement is simple and does not require any specific skill.

Typical applications fpr this Portable Dissolved Oxygen meter: measure of D.O. in wastewater treatment plants (WWTP), e.g. in activated sludges, aeration basins, biological treatment;  analysis of oxygen in drinking water plants; measure  of dissolved oxygen in  fish culture (aquaculture) e.g. in fish growing ponds.

Portable analyser for Oxygen in air Mod.HANDY 3000

Designed for the measure of oxygen in air and suitable for the use in plants using nitrogen, liquid or gas, and other gases (non incendive) that may cause oxygen depletion in ambient air.  In these cases the measure of the oxygen concentration in ambient air is a safety requirement for the health of the operators.   This analyser is composed of a probe, an electronic unit and a connecting cable.
The probe  includes a 2 electrodes galvanic cell,  with good sensitivity and  fast response time.
The probe is made of PVDF and is very sturdy;  the cable is sealed into the probe and cable outlet is from watertight cable gland; the special reinforced cable-to-probe connection assures great  protection against all possible mechanical stresses due to positioning of the probe operated using the cable.  For this purpose the polyurethane cable, length 6 meters,  is internally Kevlar reinforced.
The portable, microprocessor based, electronic unit   is very sturdy and  handy, has a wide, good visibility, OLED display and a watertight membrane keypad.  The instrument receives the O2 and temperature signal from the probe, operates the temperature compensation of the measure and displays O2 value  and air temperature.
Power supply is from rechargeable battery,  8,4 V, 170 mA/h (average autonomy is 1h 15min with lit display). The instrument accepts a 12 VDC auxiliary power supply (rear connector) that is also used to charge the battery.
The analyser is supplied c/w a properly dimensioned  carrying case  with waist belt including  fixing strips for the probe and for the cable.   This system leaves the operator hands free while he moves to reach the measuring position.  The electronic unit can be used directly inside the case so that during measures  it is fixed on the operator waist belt, therefore the operator has always a hand free during the measure.
Measuring range  is 0-20,000 ppm with 1 ppb  resolution and  ± 5 ppb accuracy  The instruction manual includes tables for the conversion “ppm value to O2 % value”.
Operating temperature limits are 5 to 50 °C, with relative humidity 0-90% non condensing.
The weight of probe with integral cable is approx 600 g; the electronic unit weights approx.  350 g; probe dimensions are  42 mm diameter, 240 mm length;  electronic unit: 48x96x100 mm.
The analyser is factory calibrated.   Zero calibration is usually never required, however the instrument includes a dual point calibration procedure, zero point is calibrated in a nirtrogen flow (a calibration vessel is supplied)   while the slope is very easily calibrated in air (in well aerated room or outdoor).