This micro-processor based, 2-wire intelligent transmitter provides measurement indication, and a choice of

analog or digital outputs for recording or control of conductivity or resistivity. A human interface guides the user

through intuitive, menu-driven configuration, calibration, status, and troubleshooting procedures. On-line

diagnostics for both transmitter and sensor are also provided to indicate real-time measurement faults.

 

FEATURES

• 4 to 20 mA or Digital Output, Fully Configurable.

• Digital Output Compatible with I/A Series®

System.

• Foxboro PC-Based Intelligent Transmitter

Configurator Offered for Remote Digital

Communications. Compatible with IBM PC

(or Compatible) Computer.

• Human Interface for Local Display, Status,

Configuration, Calibration, and Fault Isolation.

• Configuration Stored in Nonvolatile Memory.

• Application Switching and Storage of up to 3 Sets

of Application Configuration Parameters.

• Continuous Transmitter/Sensor Diagnostics.

• Intrinsically Safe Construction.

• RFI and EMI Protection.

• NEMA 4X and IEC IP65 Housing. Mounts to

Panel, Surface, or DN 50 or 2-inch Pipe.

• Digital Output for Process Measurement and

Process Temperature.

• Preprogrammed Temperature Curves Including

Temperature Compensation for Power and

Pharmaceutical Industry Applications.

• Two Levels of Passcode Protection Provided.

• Compatible with Foxboro 871CR or 871CC

Series Contacting Conductivity and Resistivity

Sensors.

• Two-Wire Intelligent Resistivity with 1.06% rms

System Accuracy.

• Conforms to all applicable European Union

Directives; product marked with “CE” symbol.

The DolpHin Series are precision electrochemical sensors used in conjunction with a widely accepted set of

mounting accessories to measure pH and ORP. They are rugged, easy-to-use devices that are particularly well

suited for use in high temperature installations.

 

INTRODUCTION

The DolpHin Series are a family of high performance pH and ORP sensors with extensive features and

accessories.Breakthrough performance in stability, accuracy, and long life makes DolpHin the premier pH and ORP sensor for on-line process applications. Laboratory testing and extensive field trials have proven DolpHin’s superior performance. It outlasts other sensors in high temperature and temperature

cycling applications up to 121°C (250°F). It remains fast and accurate, while conventional pH sensors lose

sensitivity and are slow to respond to pH changes. Foxboro engineers have formulated a unique pH

glass (patent pending) which makes DolpHin exceptionally stable, accurate, and long lasting, even

in the harshest process applications. Each component in the DolpHin sensor has been

designed to maximize ease-of-use, long life, and accuracy, including: the precision reference junction,

high temperature electrolyte, reference electrode with Nafion ion barrier, ultra fast automatic temperature

compensation, and a single rugged body that fits the widest variety of mounting accessories. The elegant

DolpHin design delivers an easy-to-use sensor with unmatched pH and ORP measurement performance.

 

FEATURE HIGHLIGHTS

• Unique pH glass - exceptionally stable, remains

fast and accurate after severe temperature

cycling (121°C/250°F)

• Proven high stability, high accuracy, and long life

• Easy-to-use body design simplifies installation,

calibration, maintenance, and replacement

• More reliable measurements permit tighter

process control

• Longer life plus easy mounting reduces

maintenance costs

The Model 75LBA Liquid Batcher is a single loop, microprocessor-based instrument for use in applications

where batching functions for liquids are required. An integral multi-function keypad allows local configuration

and operator control.

FEATURES

• Pulse Input or 4 to 20 mA Input for Flow

• 4-wire Pt RTD or 4 to 20 mA Input for

Temperature Compensation

• Control Inputs with Programmable Functionality

for Remote Operation

• Display of Six-Digit Batch Total, Eight-Digit

Running Total, Ten-Digit Grand Total and

Six-Digit Rate

• Continuous Calculation of Density from Internal

Density vs. Temperature Curve

• 4 to 20 mA Analog Output Configurable for Rate,

Temperature, or Density

• Totalizer Pulse Output Coincident with Batch and

Running Totals

• Two Relay Outputs for Batching Operations

• Three Configurable Alarm Outputs

• Local Configuration Using Multi-Function Keypad

• Easy to Read Fluorescent Display

• Panel- or Field-Mounted Versions

• Full Batching Functions with Top-Off Feature

• 120 V ac, 240 V ac, or 24 V dc

• Password Security for Configuration

• Ability to Internally Power all Input/Output Loops

(ac Version only)

Model 75MCA Mass Computers are single loop, microprocessor-based instruments designed to compute and

display flow rate and total flow of liquids, gases, and steam in mass engineering units. An integral multi-function

keypad allows local configuration and operator control.

FEATURES

• Pulse Input or 4 to 20 mA Input for Flow

• 4 to 20 mA Input for Pressure (Gas and Steam

Versions only)

• 4 to 20 mA or 4-wire Pt RTD Input Channel for

Temperature

• Continuous Calculation of Fluid Density

• Control Inputs with Programmable Functionality

for Remote Operation

• Display of 6-Digit Rate, 8-Digit Total, and 10-Digit

Grand Total, Temperature, Pressure, and Density

• 4 to 20 mA Output Configurable for Rate,

Temperature, Pressure, or Density

• Totalizer Pulse Output

• Five Configurable Alarm Outputs (Three Contact

Outputs; Two Relay Outputs)

• Ability to Internally Power all Input/Output Loops

(ac Version only)

• Accepts 120 V ac, 240 V ac, or 24 V dc Input

Power

• Easy to Read Fluorescent Display

• Local Configuration Using Multi-Function Keypad

• Panel- or Field-Mounted Versions

• Password Security for Configuration Parameters