Relative pressure transmitter 851
membraneanalogflush diaphragm

relative pressure transmitter
relative pressure transmitter
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Characteristics

Pressure type
relative
Technology
membrane
Output
analog
Mounting
flush diaphragm, O-ring
Material
stainless steel
Protection level
explosion-proof, intrinsically safe, corrosion-resistant, for harsh environments, abrasion-resistant
Applications
for the petrochemical industry
Process temperature

Min.: -40 °C (-40 °F)

Max.: 100 °C (212 °F)

Pressure range

Min.: 3 psi

Max.: 5,000 psi

Description

The model 851 pressure transmitter has both FM and CSA explosion-proof and intrinsic safety approvals with a bench adjustable 5:1 turndown of both the zero and span adjustments. This pressure sensor has 316 wetted parts and housing with a Hastelloy C diaphragm for the flush mount unit. It is light weight, just 1 lb., and is designed for years of stable performance in the toughest environmental and media conditions, such as refineries, pipelines, petrochemical plants, pulp and paper manufacturing, and water/wastewater treatment facilities. With the cover seal, double O-ring assembly, this pressure transmitter is weather proof and capable of direct spray/clean-in-place applications. The Model 851 pressure transmitter also meets NACE standards for offshore applications. The 851 has a 4-20 ma output and is available in pressure ranges from 3 psi to 5000 psi. Accuracy is +/- 0.25% of calibrated span, including linearity, hysteresis, and repeatability (BFSL). A flush version is available for vicious media or media with solids, such as pulp and paper processing. FEATURES • - A miniature, low-priced full-featured transmitter - just 1 Ib. (450 grams) o Ail welded 316 stainless Steel construction and wet-ted parts (no aluminum) • - Ranges from 0-3 psig (0.2 bar) through 0-5000 psig (345 bar) • - ±0.25% accuracy : Zéro and span adjustability • - Full 5:1 range tumdown • - FM for explosion-proof; CSA for explosion-proof and intrinsic safety • - 4-20 mA output at 12-40 VDC Watertight cable or conduit connection optional • - 1/2 inch N PT female process connection or flush mount version • - Straight in-line construction for a slim profile

Catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.