We get many requests every year from our customers for an intrinsically safe reference thermometer for use in hazardous areas. Up to now, there have been very few intrinsically safe thermometers available?and certainly no reference-grade thermometers.

Now we?re excited to offer the 5577 from Dostmann, which combines an ATEX IS rating with high accuracy (±0.05°C over the entire range ?100°C to 135°C) for the readout and probe together. It doesn?t get any better than this!

So how do we achieve such high performance? The 5577 uses Pt100 probes and a calibration procedure that uses system calibration data to marry the probe and the readout, which ensures high-accuracy measurements across a complete temperature range. System calibrations?done by Hart?are NIST-traceable and NVLAP-accredited.

The 5577 can be used with one or two probes and will display both measurement channels simultaneously along with their difference?a perfect tool for checking temperature gradients. Several probe designs are available depending on what process you?re measuring. An optional convenient carrying-case provides storage for one readout and up to two probes.

Since the 5577 is battery powered, the thermometer is lightweight and extremely portable?perfect for measurements in those hard-to-get-to places out on the pipeline. A standard IS-rated 9V ?D? cell powers the thermometer for up to 20 hours.

If you?re making critical temperature measurements and need an IS-rated thermometer, the 5577 is an essential part of your tool-kit. You shouldn?t leave the safety of your home without one!