Analytical Instrumentation & Environmental Monitoring


Smart pH measurement solutions

July 2019 Analytical Instrumentation & Environmental Monitoring

Foxboro has announced the expansion of its Smart pH product family. The enhanced Model 876PH-S transmitter, along with recently released Smart PH10 and PH12Smart pH Sensors, now provide smart pH measurement solutions across a wider array of industries and applications. This new model 876PH-S transmitter has a backlit LCD display and enhanced diagnostics with predictive maintenance capabilities. When connected to either PH10 or PH12 Smart pH sensors, the transmitter can access vital data in the sensors’ non-volatile memory, such as calibration coefficients, date of birth, firmware revision, model code selection, sales order number, serial number, time in service and the sensor history log. The sensor history log is a rich source of data from which the transmitter can deduce the health of the sensor by analysing response time and calibration coefficients such as slope as they have evolved over time. The 876PH-S can predict when a sensor’s slope value is expected to reach a low limit specified by the user and allows maintenance to be scheduled in advance and not performed unless necessary.

Diagnostics and prediction

Diagnostics and prediction functions include:

• View alerts, check sensor, resume alerts and view history.

• Measurement, compensation, and analog output over range and under range.

• Coated reference electrode.

• Ageing glass and broken glass electrode.

• Calibration required.

• Liquid leakage into sensor body.

• Failed preamplifier.

• Automatic temperature compensation (ATC) short and ATC open.

• Sensor response time and sensor service prediction.

The 876PH-S transmitter is capable of predicting the number of days remaining before a Schneider Electric Smart pH sensor will require service in the form of cleaning, recalibration, reconditioning, or replacement. The prediction is based on analysing the trend in slope values stored in the sensor history log each time the sensor is calibrated, taking into account the temperature history of the sensor, and estimating the number of days remaining before the slope drops below a user-selectable predicted slope limit. When the number of days remaining before the predicted slope will fall below the limit is less than a user-settable advance notice period, a Service Soon warning is displayed.

Intrinsically safe design and process integration

The 876PH Transmitter complies with FM, CSA, ATEX, IECEx, and NEPSI standards for intrinsic safe and non-incendive apparatus in hazardous area locations. This transmitter provides efficient integration of measurements into HART process control schemes.

It operates by using a bidirectional digital signal superimposed on the 4 – 20 mA current signal. Remote communication of digital

values plus status and configuration information can be achieved via HART communication protocol.

For more information contact Johan van Jaarsveldt, Process Automation Solutions, +27 87 803 9783, johan.vanjaarsveldt@eoh-pas.co.za, www.eoh-pas.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Reducing water consumption in the cement industry
Loesche South Africa Analytical Instrumentation & Environmental Monitoring
Water is a finite and irreplaceable resource, fundamental to life on earth. LOESCHE’s vision is to enable its customers to produce high-quality cement, without any water consumption.

Read more...
Ensuring occupational health and safety in mining
Analytical Instrumentation & Environmental Monitoring
Probe Integrated Mining Technologies (Probe IMT) has partnered with M3SH Technology to offer state-of-the-art environmental monitoring solutions that address these dual requirements.

Read more...
Sustainability of surface water
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
The sustainability of surface water is critical for South Africa’s economic development, social well-being and environmental health. Endress+Hauser has a full range of liquid analysis sensors and transmitters to measure important parameters and has an excellent global track record in water and wastewater process plants and various surface and industrial water monitoring sites.

Read more...
Keeping an eye on invisible radiation
Omniflex Remote Monitoring Specialists Analytical Instrumentation & Environmental Monitoring
At its peak in 1994, the energy generation capacity of the UK’s nuclear power stations was 12,7 GW across 16 plants. In 2024, the capacity has fallen to around 5 GW, and the number of stations is down to nine. However, this is far from the end of the story as spent nuclear fuel remains radioactive for centuries, and requires rigorous safety processes to safeguard against leaks.

Read more...
Effective dust control in sugar processing
Analytical Instrumentation & Environmental Monitoring
BLT WORLD specialists work in conjunction with the global ScrapeTec team to offer dependable solutions for specific problems at the transfer points of conveyor systems in many industries where dust and material spillage are concerns, including the sugar sector.

Read more...
A benchmark for lubricant reliability in mining
Analytical Instrumentation & Environmental Monitoring
According to Craig FitzGerald from ISO-Reliability Partners, mines can save R500 000 or more on their yearly mill cleaning costs, while electricity consumption can be reduced by up to 12%, and lubricant consumption lowered up by up to 60% when using Bel-Ray Clear Gear lubricant.

Read more...
Safeguarding precision in industrial radiometric measurements
Mecosa Analytical Instrumentation & Environmental Monitoring
In the complex landscape of industrial plant operations, precision is paramount, especially when it comes to weld inspections to test for structural integrity of pipes. Berthold has the ideal answer to this challenge – X-Ray Interference Protection.

Read more...
New indoor air quality monitor
RS South Africa Analytical Instrumentation & Environmental Monitoring
RS South Africa has available a new indoor air quality (IAQ) monitor that provides continuous, easy-to-read, and accurate real-time monitoring of air quality in indoor environments.

Read more...
A quick guide to disinfection
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
The distribution system in a drinking water network provides a reliable supply of high-quality water to consumers. Endress+Hauser’s range of robust, low-maintenance sensors are ideal for monitoring disinfectant levels in the water.

Read more...
Multi-parameter measuring system for water quality monitoring
KROHNE Analytical Instrumentation & Environmental Monitoring
Monitoring different parameters in water treatment processes can lead to a situation where different measuring points are scattered across the plant.

Read more...