MXD70 SERIES

MXD70 SERIES
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MXD70 SERIES

Product catalog summary
Overview: The MXD70 series is a line of advanced process instrumentation designed for various analytical measurements. It includes two models: the MXD73 for panel mounting and the MXD75 for surface or pipe mounting, both offering IP66 protection.
Display and Interface: Both models feature a 3¾” QVGA backlit LCD display that can show multiple measurements simultaneously. They support up to three measured parameters with temperature readings and offer a user-selectable bar graph display. The interface includes plug-and-play card detection and an SD card slot for configuration backup and software updates.
Measurement Capabilities: The instruments can measure contacting and electrodeless conductivity, pH/Redox, dissolved oxygen, suspended solids, turbidity, and 4-20mA current input, supporting up to three parameters displayed with temperature readings.
Output and Expansion: Base models come with two relay outputs and a single isolated 4-20mA current output, expandable to six relay outputs and six isolated 4-20mA outputs. Relays are configurable for on/off, time, or pulse proportional operation. The instruments also feature eight programmable digital inputs.
Communication and Data Logging: The MXD70 series supports Modbus RS485 communication and offers data logging and live trending capabilities, with measurement calculation functions for enhanced data analysis.
Power Supply and Housing: The instruments operate on a universal power supply of 85-265V AC or DC, with an option for 18-32V AC or DC. The housing is made of UL 94-V0 PC/ABS material, ensuring durability and safety.
Conductivity Measurement: The series supports both contacting and electrodeless conductivity measurements, with automatic temperature compensation and preset/custom curves for common chemicals.
Specifications: The instruments operate within an ambient temperature range of -20°C to +50°C, feature IP66 ingress protection, and comply with EMC and Low Voltage Directives.
Temperature Measurement Specifications: Range: -50°C to +160°C, Accuracy: ±0.2°C with a 4-wire PT1000, Operator Adjustment: ±50°C, Compensation Range: -10°C to +150°C, Base Temperature: Selectable at 20°C or 25°C, Input Filter: Running average over 10 seconds to 5 minutes.
pH/Redox Measurement: Features differential input for noise rejection, accepts various electrodes, displays pH, temperature, and electrode mV, includes dose alarm timer and automatic sensor cleaning, with automatic/manual calibration and temperature compensation.
Dissolved Oxygen Measurement: Measures % saturation, ppm, and temperature, accepts Galvanic or Polargraphic sensors, features pressure and salinity compensation, with automatic zero and span calibration.
Auxiliary mA Input Card: Accepts 0/4-20mA signals, scalable over four ranges, with two-point or solution calibration and error states for under 4mA or over 20mA.
Suspended Solids and Turbidity Measurement: Displays in various units, uses Quadbeam sensors with automatic compensation, includes a 10-point linearisation curve and CIP function.
Suspended Solids and Turbidity Input Card Specification: Supports Quadbeam S and T Series sensors, with a signal range of 0 to 16000 for solids and 0 to 32000 for turbidity, and adjustable input filter.
SD Card Data Logging with Live Trending: Supports SD card data logging and live trending, allowing long-term data recording and Excel-compatible file saving.
Modbus RS485 Communication: Uses Modbus RS485 for communication, functioning as a slave device with client/server communication.
Calculation Functions: Supports calculations from multiple sensor inputs, activating setpoints and driving outputs.
Order Codes and Options: Lists various order codes for MXD70 series instruments and expansion options, including input and expansion cards.
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Catalog excerpts

MXD70 SERIES-1

MXD70 SERIESInstrumentation to meet your Process RequirementsFeatures The innovative MXD70 series of process instruments brings a new dimension to analytical process measurements with a modular design to meet ever changing process requirements. • MXD73 Compact 96 DIN IP66 Panel mount option • MXD75 IP66 Surface / Pipe mount version • 3%” 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 • User selectable bar graph display option • Plug and play card detection for simple measurement and output expansion upgrades • 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 • Power fail alarm • Dedicated error page provides up to date controller status • Modbus RS485 Communications interface • Data logging and live trending • Measurement Calculation functions • 85-265v or 18-32v Supply options (AC or DC) • User configurable measurement channel ident

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MXD70 SERIES-2

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 3%” 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 separate inputs for remote activation of user defined operations....

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MXD70 SERIES-3

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 3%” 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 separate inputs for remote activation...

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MXD70 SERIES-4

• 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 K= 0.01 and 10. This offers a wide operating...

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MXD70 SERIES-5

Range & Sensor Compatibility Tables CONDUCTIVITY RANGE Note 1: The maximum measurement range will be limited by the solution temperature. With the temperature compensation slope set to 2%/°C, this will derate linearly from full scale at 25°C to 50% of scale at 100°C.

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MXD70 SERIES-6

• 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 pS/cm) to solution concentration measurements (1,000 mS/cm), it is possible to display the readings in conductivity...

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MXD70 SERIES-7

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 0-999.9|jS/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 to 16.00% NaOH - Sodium Hydroxide. 0 to 30.00% NaCl - Sodium Chloride. 0 to 15.00% HCl - Hydrochloric Acid. 0 to 25.00% H2SO4 - Sulphuric Acid. 0 to 25.00% H3PO4 - Phosphoric Acid. 0 to 25.00% HNO3 - Nitric Acid. Linearity ±0.1% of range. Repeatability ±0.1% of range. Operator...

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MXD70 SERIES-8

• 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 to be used with almost any pH...

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MXD70 SERIES-9

pH / Redox Input Card Specification Measurement Input Single ended or differential with solution ground. Connection Cable Up to 100 metres (No preamp required). LTH type 54E or LN10 cable. pH Separate glass and reference electrode pair. Combination electrode. Redox Separate glass and reference electrode pair. Combination electrode. Other manufacturer's sensors can be accommodated. Ranges of Measurement 0.00-14.00pH, 0.000 to 14.000pH, -1999 to +1999mV. Accuracy ± 0.050pH, ±3mv. Linearity ±0.1% of range. Repeatability ±0.1% of range. Operator Adjustment Custom Buffer 13 point 4pH / 9pH custom...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.