Sensors & Transducers


Handheld control valve tester

June 2019 Sensors & Transducers

In the past, control valve testing meant using complicated testers that required extensive training, the removal of the valve, and often one-to-two hours of test time on the bench. Comtest is therefore pleased to announce the arrival of Fluke’s new 710 mA Loop Valve Tester. The device allows technicians to source the 4-20 mA signal while it interrogates HART data to collect critical information about the valve’s position and status, providing quick checks of control valves while they are in place. With built-in test procedures and an intuitive interface, the Fluke 710 allows technicians to perform valve tests, while the quick-check results provide at-a-glance diagnostics to make faster maintenance decisions.

The 710 features pre-configured valve tests for reliable and repeatable testing. The built-in routines include:

• Manually changing the mA signal and viewing the HART position and pressure variable information.

• Full range ramping of the mA signal from 4 to 20 to 4 mA while recording the 0-100-0 percent position, or the pressures applied that move the valve from 0-100-0 percent.

• Stepping the mA signal on the input to the valve in steps and evaluating the valve’s response to the mA input changes.

• Speed tests to determine how fast the valve can open or close.

• Bump and partial stroke tests that help test valves over a portion of their range so they can be tested in a live process.

Test results are stored in the memory of the tester from where they can be uploaded to the included ValveTrack analysis software. ValveTrack allows users to:

• Upload and plot logged valve tests taken in the field.

• Compare previously uploaded to recent tests.

• View valve test history by HART Tag ID.

• Export valve test data for additional analysis.

For more information contact Comtest, +27 10 595 1821, [email protected], www.comtest.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Leading the way with Level 9 PDS implementation
Sensors & Transducers
Applying a Level 9 Proximity Detection System (PDS) to a mining operation is as much about changes in behaviour as it is about technical solutions, according to Pieter Wolfaardt from Apex, Booyco Electronics’ training partner of choice.

Read more...
Enhanced automated weld inspection system
Sensors & Transducers
SmartRay is offering the release of new hardware for its weld inspection system, JOSY, delivering elevated performance and flexibility in the process.

Read more...
Leaders in sensor technology
Gail Norton Instrumentation Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace there is no such thing. Steam, water, light and dirt interfere with most photoelectric eyes, but never with a Telco sensor.

Read more...
Easy parameter setting of vision sensors
ifm - South Africa Sensors & Transducers
Contour verification and object inspection are two of the most important functionalities in industrial imaging. With the new O2D5xx series, ifm now offers a solution that perfectly masters both functionalities

Read more...
Keeping a close eye on product quality and purity
Endress+Hauser South Africa Sensors & Transducers
Colour measurements are necessary in many processes to avoid product losses and ensure safe production and batching. The Memosens Wave CKI50 process spectrometer from Endress+Hauser is a compact, robust and process-friendly device allowing quality, batching and phase checks to be performed by a single instrument for the entire visible colour spectrum.

Read more...
The sensory reaction of building management systems
Schneider Electric South Africa Sensors & Transducers
Today’s building management systems (BMS) cannot function properly without sensors. This is so critical that if sensors start failing, they can become ‘blind’.

Read more...
Advanced sensor technology to reduce vehicle fatalities
Senseca Sensors & Transducers
Measurement technology plays a critical role across a range of industries. This is especially true when supplying highly accurate and reliable data for road management entities that assist drivers of vehicles experiencing hazardous weather conditions.

Read more...
Industrial acoustic imaging tool
Comtest Pneumatics & Hydraulics
Comtest offers the Fluke ii Industrial Acoustic Imager series, a hand-held, easy-to-use tool that visualises sounds coming from small leaks in compressed air, gas and vacuum systems.

Read more...
High-precision automated inspection
Sensors & Transducers
Delivering advanced inline metrology to an expanding range of challenging industries, SmartRay is launching the smallest field-of-view 3D sensor of its cutting-edge ECCO X series.

Read more...
Long-range laser distance measuring sensor
Vepac Electronics Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.

Read more...