LTH Electronics products

The MXD75 is a microprocessor controlled multi-parameter instrument that can be installed with a user selected combination of up to 3 Sensor Input Cards. The instrument may be subsequently modified to meet changing requirements by the installation of additional, or different, cards and the attachment of the appropriate sensor(s). Utilising a multifunction easy to read QVGA LCD the instrument displays readings and provides feedback to the operator on the status of the sensors and instruments outputs. In addition the instrument features, depending upon configuration, up to six control relays and up to six 0/4 – 20mA current outputs. These can be used to provide fully configurable control, alarm and feedback. Finally the instrument also features an SD card interface which enables the user to backup and restore instrument settings, copy settings between instruments, log the sensor readings (optional extra) and to upgrade the instrument’s software.

The HCT63 is a microprocessor controlled conductivity measurement instrument with the facility to display in ìS/cm, mS/cm, MÙ.cm or ppm. The unit utilises a multifunction LCD to display readings and provide feedback to the operator. It is available with different options to provide fully configurable control and feedback with up to two control relays and two 0/4-20mA current output sources.

The AquaCal 2000 hand held system has been developed to provide a method of measuring the conductivity or resistivity of pure water to traceable standards making it suitable to validate pure water treatment plants. Currently it is only possible to calibrate instrumentation on site by using precision resistors, however it is impossible to check the complete measurement system including the cell. The AquaCal 2000 overcomes this problem by providing a portable calibrated system that can be used to check on-line instrumentation by comparison.

The Conductivity meter – Thermometer Model HD2306.0 is a portable instrument, fitted with a large LCD display for excellent visualization of the measured data, that allows measurement of the following: conductivity; liquid resistivity; total dissolved solids (TDS); with combined 4-ring or 2-ring conductivity/temperature probes. Temperature only is measured by Pt100 or Pt1000 immersion, penetration or contact probes. The probe calibration can be performed automatically in one or more of the 147μS, 1413μS, 12880μS or 111,800μS/cm conductivity calibration solutions (see chapter 4). Using the Max, Min and Avg function of this instrument respectively obtains the maximum, minimum or average values.

The CDM9 is available as a panel or surface mounting Conductivity Indicator Controller in an IP66 enclosure with a 3.5 digit liquid crystal display. The CDM9 provides a single pole change over relay to operate a solenoid valve, dosing pump or visual or audible alarm. The relay can be set to energise on a rising or falling conductivity enabling the CDM9 to be used for a variety of water treatment applications.

The MXD73 is a microprocessor controlled multi-parameter instrument that can be installed with a user selected combination of up to 3 Sensor Input Cards. The instrument may be subsequently modified to meet changing requirements by the installation of additional, or different, cards and the attachment of the appropriate sensor(s). Utilising a multifunction easy to read QVGA LCD the instrument displays readings and provides feedback to the operator on the status of the sensors and instruments outputs. In addition the instrument features, depending upon configuration, up to six control relays and up to six 0/4 – 20mA current outputs. These can be used to provide fully configurable control, alarm and feedback. Finally the instrument also features an SD card interface which enables the user to backup and restore instrument settings, copy settings between instruments, log the sensor readings (optional extra) and to upgrade the instrument’s software.