Environmental Laboratory

  • DC Calibrator Combines Precision Performance with Ease of Operation

DC Calibrator Combines Precision Performance with Ease of Operation

Sep 22 2014 Read 938 Times

The new Yokogawa (the Netherlands) 2553A is a precision DC calibrator combining precision performance and ease of use for the calibration of measuring instruments including analogue meters, thermometers, temperature transmitters and data loggers.

The new unit features high accuracy, high stability, low noise, and high resolution. Intuitive operation is aided by the provision of dials for each digit and switch and a clear display using traditional 7-segment LEDs.

The 2553A is the successor to Yokogawa's earlier 2553 model, but offers higher performance in terms of range and accuracy, additional temperature measurement options, resistance generation, and a choice of communications interfaces as well as being much lighter. The 2553A can be used with existing 2553 programs, allowing its integration in a system containing a mixture of 2553As and 2553s.

The heart of the instrument is a DC current/voltage generator with five voltage ranges from 10 mV to 30 V, four current ranges from 1 mA to 100 mA, ten different types of thermocouple (as specified in IEC standards) as well as Pt100 RTDs (resistive temperature detectors), and a 400-ohm resistance generation range. 

By setting temperature value, the 2553A generates thermocouple electromotive power and can therefore be used to calibrate temperature controllers. It also generates temperature-related resistance values for RTD measurements. Settings can be made by resistance value as well as temperature, making it possible to calibrate using the resistance value.

The 2553A also offers RJC (reference junction compensation) at the output terminals, with a choice of three modes: internal, external and manual.

User defined temperature calibration can be achieved by copying text files including relationship parameters between temperature and voltage or between temperature and resistance, allowing calibration curves to be generated for various types of thermocouple and RTD.

Text files can be easily created by text editor or Excel on a PC. Files can be easily transferred by "drag & drop" operations when the 2553A is connected to a PC via a USB cable, letting the PC recognise the 2553A's internal memory as a mass storage drive.

The 2553A can also be used to calibrate sensor transformers and transmitters for pressure, volume flow and temperature as well as environmental parameters such as pH, ORP (oxidation reduction potential), conductivity or dissolved oxygen. It can also simulate 2-wire transmitters for 4-20 mA signals.

The 2553A measures 132(H) x 213(W) x 300(D) mm, and weighs approximately 3 kg. It comes complete with USB, Ethernet and GP-IB communication interfaces.

Read comments0

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.


Digital Edition

International Environmental Technology December 2018

December 2018

In This Edition Business News - Celebrating 50 years of Swiss engineering in Manchester - Taking a closer look at algal blooms - Sonardyne acquires maritime and marine science technology sp...

View all digital editions

Events

Carrefour des Gestions Locales de L'eau

Jan 30 2019 Rennes, France

InterAqua 2019

Jan 30 2019 Tokyo, Japan

Biogaz Europe 2019

Jan 30 2019 Rennes, France

World Congress on Chromatography

Jan 31 2019 Paris, France

SLAS 2019

Feb 02 2019 Washington, DC, USA.

View all events