MXD70 series
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MXD70 SERIES Instrumentation to meet your Process Requirements Features The innovative MXD70 series of process instruments brings a new dimension to analytical process measurements with the modular design to meet ever changing process requirements. • MXD73 Compact 96 DIN IP66 Panel mount option • User selectable bar graph display option • MXD75 IP66 Surface / Pipe mount version • Plug and play card detection for simple measurement and output expansion upgrades • 3¾" QVGA Backlit LCD display provides clear indication as single or multiple measurements • Parameters include: Contacting and Electrodeless Conductivity, pH / Redox, Dissolved Oxygen, Suspended Solids, Turbidity and 4-20mA Current Input • Up to 3 measured parameters with temperature readings can be displayed together • SD card interface allows trouble free saving of configuration and simplifies software updates • Base models include 2 relay outputs and a single isolated 4-20mA current output • Can be expanded up to 6 relay outputs and 6 isolated 4-20mA current outputs • Relays are fully configurable including on/off, time or pulse proportional operation • 8 Independent programmable digital inputs with user selectable operations • Dedicated error page provides up to date controller status • 85-265v or 18-32v Supply options (AC or DC) • User configurable measurement channel identification tag

MXD73 Instrument Specification Input Expansion Slots 3 slots, user configurable with any combination of available input add-in cards. Output Expansion Slots 1 slot, user configurable with an additional output option add-in card. Ambient Operating Temperature -20°C to +50°C (-4°F to +122°F) for full specification. Display 3¾" QVGA back lit LCD module. Buttons 5 tactile feedback, micro-switched, silicone rubber. Alarm LED’s 2 Yellow LED’s located above the main display area for instrument’s alarm status, a lit LED indicates an alarm condition. Digital Inputs 8 contact closures for remote...

MXD75 Instrument Specification Input Expansion Slots 3 slots, user configurable with any combination of available input add-in cards. Output Expansion Slots 1 slot, user configurable with an additional output option add-in card. Ambient Operating Temperature -20°C to +50°C (-4°F to +122°F) for full specification. Display 3¾" QVGA back lit LCD module. Buttons 5 tactile feedback, micro-switched, silicone rubber. Alarm LED’s 2 Yellow LED’s located above the main display area for instrument’s alarm status, a lit LED indicates an alarm condition. Digital Inputs 8 contact closures for remote...

Contacting Conductivity Measurement • Displays conductivity, resistivity, ppm and temperature units • Measured process & temperature can be displayed together • Compliant with current USP requirements • Full ultra pure water temperature compensation • Ultra pure water to solution concentration measurement • Auto range, remote range or single range operation The contacting conductivity input allows connection with LTH contacting conductivity cells with a cell constant of K= 0.01, 0.1, 1.0 and 10. It is also possible to use other manufacturer’s conductivity cells with a cell constant between...

Range & Sensor Compatibility Tables CONDUCTIVITY RANGE NOMINAL CELL CONSTANT 0.010 0 to 9.999 µS/cm 0 to 99.99 µS/cm 0 to 999.9 µS/cm 0 to 9.999 mS/cm 0 to 99.99 mS/cm RESISTIVITY RANGE NOMINAL CELL CONSTANT 0.010 0 to 99.99 kΩ-cm 0 to 999.9 kΩ-cm 0 to 9.999 MΩ-cm 0 to 99.99 MΩ-cm TOTAL DISSOLVED SOLIDS RANGE NOMINAL CELL CONSTANT 0.010 0 to 9.999 ppm 0 to 99.99 ppm 0 to 999.9 ppm 0 to 9999 ppm 0 to 99.99 ppt Note 1: The maximum measurement range will be limited by the solution temperature. With the temperature compensation slope set to 2%/ºC, this will derate linearly from full scale at...

Electrodeless Conductivity Measurement • Displays conductivity, % solution concentration, salinity and temperature units • Able to simultaneously display conductivity, % solution concentration, salinity and °C • Ideal for cooling tower bleed, rinse water and solution concentration applications • Preset curves stored for common chemicals and salinity • 2 independent custom curves offering up to 9 points can be entered • Adjustable temperature compensation slope Covering a wide range of conductivity measurement, from water (200 μS/cm) to solution concentration measurements (1,000 mS/cm), it...

Electrodeless Conductivity Input Card Specification Measurement Input ECS20 or ECS40 Series electrodeless conductivity sensor. Connection Cable Up to 100 metres LTH 54E or 54H cable. Ranges of Measurement 0-999.9μS/cm, 0-9.999mS/cm, 0-99.99mS/cm, 0-999.9mS/cm. 0-999.9 ppm, 0-9999 ppm. 0-99.99 ppt (parts per thousand). 0 0 0 0 0 0 NaOH – Sodium Hydroxide. NaCl – Sodium Chloride. HCl – Hydrochloric Acid. H2SO4 – Sulphuric Acid. H3PO4 – Phosphoric Acid. HNO3 – Nitric Acid. Operator Adjustment (Temperature) ± 50°C or ± 122°F. Range of Temperature Compensation -10°C to +150°C (+14°F to +302°F)...

pH/ Redox Measurement • Differential input for excellent noise rejection • Accepts pH glass or Antimony and Redox (ORP) Electrodes • Able to simultaneously display the pH reading, temperature and electrode mv • Dose alarm timer prevents overdosing • Automatic sensor cleaning By providing the user with the flexibility to select either glass or Antimony pH sensors or Redox input and operating with single ended or differential inputs, means a single instrument may be used for the majority of pH and Redox applications. Temperature compensator selection of Pt100 or Pt1000 allows the instrument...

pH / Redox Input Card Specification Measurement Input Single ended or differential with solution ground. Up to 100 metres cable. Custom Buffer 13 point 4pH / 9pH custom buffer entry pre-loaded with standard LTH buffers. pH Separate glass and reference electrode pair. Combination electrode. Calibration Timer Inbuilt calibration count down timer which will trigger an alarm when calibration interval has expired. Redox Separate glass and reference electrode pair. Combination electrode. Other manufacturer’s sensors can be accommodated. Ranges of Measurement 0.00 to 14.00pH / -1999mV to +1999mV....