Manex Utility https://www.manex-utility.co.uk/ Test Equipment Calibration and Repair in Colchester, Essex. Sat, 29 Aug 2020 16:00:17 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.3 https://www.manex-utility.co.uk/wp-content/uploads/2018/11/cropped-HiRes_Logoa-32x32.jpg Manex Utility https://www.manex-utility.co.uk/ 32 32 PAT Tester Calibration Load https://www.manex-utility.co.uk/pat-tester-calibration-load/ https://www.manex-utility.co.uk/pat-tester-calibration-load/#respond Sat, 29 Aug 2020 16:00:17 +0000 https://www.manex-utility.co.uk/?p=622 New Design – PAT Tester load calibration unit Designed and built by Prolab part of Manex USL Calibration. Variable adjusted AC load for testing the load reading on mains powered PAT testers to enable compliance with PAT Tester specification. 2 models available up to 3kW and 2kW maximum load @ 230V AC. Any interest in […]

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New Design – PAT Tester load calibration unit

Designed and built by Prolab part of Manex USL Calibration.

Variable adjusted AC load for testing the load reading on mains powered PAT testers to enable compliance with PAT Tester specification. 2 models available up to 3kW and 2kW maximum load @ 230V AC.

Any interest in purchasing one contact David Baxter on 01206 710632 or email: davidbaxter@manex-utility.co.uk

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Special Purpose Designs https://www.manex-utility.co.uk/special-purpose-designs/ https://www.manex-utility.co.uk/special-purpose-designs/#respond Mon, 03 Aug 2020 21:37:47 +0000 https://www.manex-utility.co.uk/?p=612 Precision Voltage & Current Sources (Applications) Output source and readout for positioning HVAC motorized valves Field tested @ Crane Fluid Control Laboratory and on field service Developed for a well known valve manufacturer for positional control of 24 Volt AC motor driven valve actuators with a 0 to 10 Volt control input. Output switched in […]

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Precision Voltage & Current Sources (Applications)

Output source and readout for positioning HVAC motorized valves

Field tested @ Crane Fluid Control Laboratory and on field service

Developed for a well known valve manufacturer for positional control of 24 Volt AC motor driven valve actuators with a 0 to 10 Volt control input. Output switched in 1 Volt steps the position of the valve can be controlled to 0.1% of position. Unit provides 24 Volt AC power source for motors and precision 10 Volt DC reference circuit attenuated down into 1 Volt steps to drive an output power stage to valve input control electronics. Output stage provides negative feedback to adjust for IR losses at output. Output is short circuit and overload protected on control output by current limiter. Supply is nominal UK 230V AC mains supplied, 110 Volt site versions available. Feedback and voltage readout accurate to 0.1% gives position to “go”and position “at” readout to see command and actual position, (test for jammed or seized valve).

Suitable for Crane, Danfoss and many other actuator control valves.

For further information on this and other special projects we have been involved with contact David Baxter.

 

 

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IR Temperature Measurements https://www.manex-utility.co.uk/ir-temperature-measurements/ https://www.manex-utility.co.uk/ir-temperature-measurements/#respond Thu, 09 Jul 2020 14:23:03 +0000 https://www.manex-utility.co.uk/?p=607 Attended a very interesting Fluke webinar produced by Hart technology regarding calibration of IR measuring instruments. For those in the Calibration, test & measurement sectors i would recommend these webinars as time watching is well worth the effort. At Manex USL calibration we can calibrate various IR hand held temperature instruments from Fluke and other […]

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Attended a very interesting Fluke webinar produced by Hart technology regarding calibration of IR measuring instruments. For those in the Calibration, test & measurement sectors i would recommend these webinars as time watching is well worth the effort.

At Manex USL calibration we can calibrate various IR hand held temperature instruments from Fluke and other manufacturers. Best accuracy is achieved by stating the temperature points that you commonly use for measurement. Calibration certificates will have readings and offset data against each point measured to achieve an overall ±uncertainty of measurement for the end user.

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Instrument Measurement Tech Tips https://www.manex-utility.co.uk/instrument-measurement-tech-tips/ https://www.manex-utility.co.uk/instrument-measurement-tech-tips/#respond Wed, 08 Jul 2020 19:49:15 +0000 https://www.manex-utility.co.uk/?p=585 This week I am going to cover Installation Testers Multifunction Testers The purpose of this Blog page is to assist if possible problems users may have when using Electrical Test Equipment. This includes accuracy of measurement or even just operational issues. At Manex USL Calibration we aim to help our customers with advice or problems […]

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This week I am going to cover Installation Testers

Multifunction Testers

The purpose of this Blog page is to assist if possible problems users may have when using Electrical Test Equipment. This includes accuracy of measurement or even just operational issues. At Manex USL Calibration we aim to help our customers with advice or problems they may have with test & measurement equipment or measurement techniques. You can contact me via the normal channels, web site, email or messaging.

David Baxter IEng MIET

 

 

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