Intrinsically safe thermometers have two channels
2 July 2003
Test & Measurement
The Hart Scientific 5577 handheld, intrinsically safe RTD thermometer system available from Spescom MeasureGraph is ideally suited to operating in specified hazardous environments. Despite its light weight and portability, it is a two-channel, high-performance instrument that provides high-accuracy measurements across an important temperature range, says Spescom.
The 5577's safety rating makes it a critical instrument for petrochemical refineries that have previously mainly relied on expensive and delicate liquid-in-glass thermometers for temperature reading. It is also a valuable device for natural gas firms, which, in custody transfer applications, must make precise temperature measurements to ensure volume accuracy.
The thermomoter provides basic accuracy of ±0,05°C over its full range of -100 to 135°C. In addition, a drift specification of ±0,05°C allows for one-year drift of the probe under normal usage and handling conditions. Each new 5577 system (meter and probe) is 'system calibrated' at Hart, providing a NIST-traceable NVLAP-accredited system calibration.
As the 5577 provides two channels, two probes may be purchased for use with each meter. Each probe must receive its own system calibration with its intended meter on its own specific channel, requiring it thereafter to be dedicated to its channel in order to gain the full intended advantage of the 5577's accuracy specifications. The combination of accredited, calibrated accuracy and intrinsic safety, make the 5577 a truly unique solution for industries involved in hazardous environments.
For more information contact Van Zyl Koegelenberg, Spescom MeasureGraph, 011 266 1572, [email protected]
Further reading:
12-bit 1-wire temperature sensing
RS South Africa
Test & Measurement
The DS18B20 digital thermometer from Analog Devices provides 9-bit to 12-bit Celsius temperature measurements in the range -55°C to 125°C.
Read more...
Ultra-fast wideband RF insight
Vepac Electronics
Test & Measurement
The Harogix PXE-200 is a high-performance real-time spectrum analyser designed for demanding RF environments up to 20 GHz.
Read more...
Field calibration made easy
Instrotech
Test & Measurement
Built around modern component technology, an intuitive interface, and a rugged IP54-rated housing, Instrotech’s Calog series is engineered for the demands of real industrial field calibration work.
Read more...
Rugged two-pole voltage tester
Vepac Electronics
Test & Measurement
A key advantage of the PeakTech 1094 is its battery-free operation, ensuring the tester is always ready for use whenever required by professional electricians or maintenance personnel.
Read more...
Rapid IoT prototyping simplified
Future Electronics
Test & Measurement
The STEVAL-MKBOXPRO from STMicroelectronics is a compact, ready-to-use wireless development kit designed to accelerate the creation of intelligent IoT and wearable applications.
Read more...
High speed precision digital multimeters
Vepac Electronics
Test & Measurement
Siglent Technologies has expanded its precision measurement portfolio with the SDM4000A Series digital multimeters, delivering a powerful combination of speed, accuracy, and usability for modern automated test environments.
Read more...
Non-contact linear position sensor
Electrocomp
Test & Measurement
The Vishay 40 LHE Linear Position Sensor, designed for industrial motion control and automation, delivers robust, non-contact measurement performance using Hall effect technology.
Read more...
Real-time monitoring for smart power distribution
CST Electronics
Test & Measurement
By leveraging high-precision measurement, high-speed wave-recording, and AI-enabled analytics, the InHand Wireless Overhead-lines System empowers power utilities to accurately identify line faults and perform comprehensive load analysis.
Read more...
Compact vector network analyser
Vepac Electronics
Test & Measurement
Siglent Technologies has introduced the SNA5000X-E Vector Network Analyzer, a compact, cost-effective solution engineered to meet essential RF testing needs, while maintaining dependable performance.
Read more...
Smart digital fibre sensor
Avnet Abacus
Test & Measurement
Panasonic Industry Europe has introduced the new FX-250 digital fibre sensor designed to support users in their daily working routines as effectively as possible.
Read more...
printer friendly version