Dissolved Oxigen Accessories

Oct 22, 2011 


Model Description
332/P 332P Oxygen probe with thermometric sensor
Platinum/Silver electrode
332/PB 332PB Oxygen probe sensor
Silver/Lead electrode

Microprocessor Multiuse pHmeter

Oct 16, 2011 

Water Treatment, Chemical and Food Industry, Nursery, Swimming-Pool, Galvanizing and more…

  • Measures pH, mV, and °C/°FF
  • Automatic and/or manual calibration
  • Absolute or relative measurements
  • Measure maximun and minimun
  • Automatic or manual temperature compensation
  • Auto-Power-Off
  • Hold function to block reading
  • High precision

The HD 8705 is a combined instrument for taking precise measurements of pH, mV and temperature in the laboratory, on the field and in industrial systems.

Various types of electrodes for pH may be connected to the BNC connector, electrodes for measuring the oxidoreduction potential (ORP) or ion specific electrodes (ISE). The temperature probes of the TP870 series are optional (TP870 for immersion, TP870C for contact, TP870A for air, TP870P for penetra-tion). In pH measurements the temperature probe automatically compensates the electrode temperature coefficient. If the temperature pro-be is not connected, manual compensation is automatically enabled (with the “up” A and “down” V keys).

Instrument Contol Legenda

  • HD8705Socket input A, BNC for connecting the pH, ORP or ISE electrode.
  • HOLD symbol.
  • UP symbol. Appears during calibration of the offset of the pH electrode.
  • MAX symbol. The value indicated on the display is the MAX value recorded at the input selected.
  • RCD symbol. Indicates that the instru-ment is memorizing the maximum and minimum values of the two inputs.
  • MIN symbol. The value indicated on the display is the MIN value recorded at the input selected.
  • HOLD key. Blocks the reading while internally the instrument continues up-dating data.
  • REC key. When this key is pressed the instrument is set to memorize che MAX and MIN values recorded by the probes connected to the two inputs.
  • REL key. When this key is pressed the relative measurement is taken with re-spect to the value in memory the mo-ment the REL key was pressed.
  • “T” Key for selecting readings in °C or °F.
  • PH key. Press this key to select mea-surement in pH.
  • “Up” key. During manual calibration it in-creases the value shown on the di-splay.
  • CAL key. When this key is pressed the instrument is set to calibrate the pH electrode. When pressed a second ti-me it conf irms the calibration.
  • Input B, 8-pole DIN connector for the temperature probe input.
  • Display.
  • °C symbol.
  • °F symbol.
  • pH symbol.
  • mV symbol.
  • B symbol. When it flashes it indicates that the AUTO-POWER-OFF function has been disabled.
  • REL symbol. The instrument is set for relative measurements.
  • On/Off Key for switching the instrument on or off.
  • DATA CALL. When this key is pressed the display recalls in sequence the MAX, MIN and updated (present) value of the input selected.
  • mV key. Press this key to select rea-dings in mV.
  • “down” key. During manual calibration it decreases the value shown on the di-splay.

Multiparametric Probe

Oct 16, 2011 

The Leading Instrument for Quality Water Survey

  • 346 Multiparametric ProbeBattery-powered with long autonomy
  • Suitable for fresh waters, sea water and wastes
  • Internal data-logger with PC interface
  • Probe tested at 200mt depth
  • 12 parameters with real-time display

Model 346 Aquamaster has been specifically designed for the measure of the most important electrochemical parameters of a water. It allows the continuous monitoring of wells, basins, and all the other check points relevant for the quality of a water.

The system allows long-distance data transmission so that the continuous monitoring can be operated from remote laboratories or control rooms even with long periods data collection.

The probe diameter is 48 mm, so it can be easily used in artesian wells while the included sensor are easily replaceable. The body is made of Stainless Steel, so the probe is suitable also for the use in sea water and wastewater. The probe can be immersed down to 200 m depth.

The datalogger is included into a sealed housing (IP56 protection degree), together with the rechargeable battery. A GSM modem or a radiotransmitting device can be installed in the same housing. Should the power supply not be available at the point of installation, the instrument can be powered through a solar collector.

A specifically designed program allows to control many Aquamaster monitoring points through a PC. Data are collected and stored on a continuous basis or at programmed intervals and are stored on disk so that they are available to be processed.

Multiparametric Probe

Oct 16, 2011 

The Leading Instrument for Water Quality Survey

  • 345Battery-powered with long autonomy
  • Suitable for fresh waters, sea water and wastes
  • Internal data-logger with PC interface
  • Probe tested at 200mt depth
  • 12 parameters with real-time display

The Model 345 “Aquamaster” has been specifically conceived to allow in situ measurements of all most important chemical and physical parameters useful to characterize the waters quality.

Use of this portable instrument with multi-parametric capability greatly reduces the need for sample collection and expensive laboratory analyses: field personnel can discriminate quickly and on-site the parameters falling outside the pre-defined limits and samples for laboratory analysis will be collected only when the situation is clearly unacceptable.

All necessary cells, sensors and electrodes have been enclosed into a single submersible probe designed to withstand water pressures in excess of 20bar corresponding to a practical depth of 200 meters.

The probe body and submersible parts are made of AISI316 stainless steel in order to allow safe use also in sea-water and waste waters.

The Instrument

345_detail1It is composed by a surface unit with full provisions for programmability, data storage and display (also containing rechargeable batteries for the whole system) and a submersible probe containing all cells, sensors and electrodes with the related measuring and conversion electronics.

The instrument simply measures the working electrode potential that changes progressively as long as the metals are stripped-away in succession at their different electrochemical potentials.

This Chemical stripping action is quite insensitive to almost any interfering organic matter present in the solution and is also insensitive to the presence of dissolved oxygen in solution (another factor of great interference in the traditional voltammetric analysis).

The constant value time at each metal’s redox potential is proportional to the concentration of the metal sample.

The Surface Unit

345It is a splash-proof (IP-56) plastic box provided with a soft carrying case with handles and bands allowing hands-free operation. It includes a sealed compartment for the rechargeable battery pack and line power supply/battery-charger. If needed the instrument can be also operated with an EXTERNAL 12V battery.

A waterproof membrane keyboard allows an easy programming and parameters selection. All data can be read simultaneously on back-lighted LCD screen.

The instrument can be operated in two different modes: as real-time multimeter or as data logger (or both at the same time).

Data logger stores at intervals between 10 seconds and 24 hours. Logging start/stop operation can be either manual or predefined When measurement interval is longer than 30 seconds, the instrument automatically disable itself and disconnets the power in order to increase the battery life.

A serial interface RS-232 is provided to connect the Model 345 to any Personal Computer or other suitable device to retrieve data stored in memory. A simple WINDOWS software is available to create data disk files and to format data or reviewing and printout. Model 345 can be also connected to any existing data transmission system (MODEM or VHF radio-link) for long distance connection.

The Probe

345It is an all-stainless steel cylindrical container housing all sensors cells and electrodes with the related electronic circuits. All signals are amplified, scaled and converted in digital form LOCALLY INSIDE THE PROBE.

Using only DIGITAL DATA TRANSMISSION between the probe and the surface unit, all possibilities of noise, interferences and signal attenuation are thus completely eliminated. All electrodes and cells requiring frequent substitution and service, are easily removable without necessity to dismount the probe body.

The electric connection cable is internally reinforced with a Kevlar core and also acts as supporting rope. A submarine multipolar connector allows to separate the probe from the cable.