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Model-851

Model-851
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Product Data ELECTRONIC PRESSURE MEASUREMENT PRODUCTS Model 851 Pressure Transmitter DESCRIPTION The Model 851 is designed for years of stable performance in even the toughest environmental and media conditions, such as refineries, petrochemical facilities, paper and pulp plants, and waste water treatment facilities. Approvals include ratings for CSA, for both intrinsic safety and explosion-proof, and FM for explosion-proof only. The Model 851 also meets NACE standards for offshore applications. A one year warranty is standard with every unit. l A miniature, low-priced full-featured transmitter – just The small size and light weight of the Model 851 transmitter eliminates the need for complicated mounting hardware and mechanical supports, thereby reducing installation time substantially. The in-line connection permits simple field wiring without the need for additional hardware, adding to the speed and ease of installation. Its slim profile allows for mounting in places too tight for most other transmitters. l Full 5:1 range turndown A 4-20 mA output is standard with a 12-40 VDC power supply. The Model 851 is bench adjustable, allowing for calibration of zero and span. With the cover seal, double O-ring assembly, this transmitter is weather proof and capable of direct spray/clean-in-place applications. Model 851T with conduit adapter for EX rating 1 lb. (450 grams) l All welded 316 stainless steel construction and wet- ted parts (no aluminum) l Ranges from 0-3 psig (0.2 bar) through 0-5000 psig (345 bar) l ±0.25% accuracy l Zero and span adjustability l FM for explosion-proof; CSA for explosion-proof and intrinsic safety l 4-20 mA output at 12-40 VDC l Watertight cable or conduit connection optional l 1/2 inch NPT female process connection or flush mount version l Straight in-line construction for a slim profile l 24 inch (61cm) cable standard l Flush version for viscous media or media with solids Model 851 Flushmount – with welded coupling in pipe for viscous media, slurries, or applications where parafin wax may build inside. Sensor can be easily removed to allow diaphragm steam cleaning as needed. Sales/Technical Support Telephone: +1 215-355-6900 or e-mail: pmt.sales@ametek.com 820 Pennsylvania Boulevard | Feasterville, PA 19053 U.S.A. | Order Fax: +1 215-354-1802 © 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. K796381 – Effective: 6-2013, Supersedes: New (110110) Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.

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Product Data ELECTRONIC PRESSURE MEASUREMENT PRODUCTS Model 851 Pressure Transmitter SPECIFICATIONS Performance Specifications Service: Liquid, gas or vapor Accuracy: ±0.25% of calibrated span including linearity, hysteresis and repeatability (BFSL) Response Time: Time constant of 20 milliseconds Stability: ±0.5% of upper range limit for six months Temperature Effect (Includes Zero and Span): Compensated: -20° to 180°F (-29° to 82°C) Between 30° and 130°F (-1° and 54°C): ±1% of URL per 50°F (28°C) Between -20° and 180°F (-29° and 82°C): ±1.6% of URL per 50°F (28°C) Power Supply Effect:...

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Product Data ELECTRONIC PRESSURE MEASUREMENT PRODUCTS Model 851 Pressure Transmitter MODEL 851F (0-300 PSIG MAX.) 2 CONDUCTOR CABLE (PLUS GROUND) #22 AWG PLUG IS INSTALLED IN COUPLING: a. Without gasket to prevent distortion while welding coupling b. With a gasket to seal coupling when Model 851F is removed OPTIONAL CONDUIT ADAPTOR (OPTION C) FLUSH DIAPHRAGM Typical Wiring Diagram POWER SUPPLY RECEIVER/ CONTROLLER (GREEN) SHIELD/DRAIN NEGATIVE TURNDOWN (COARSE) ADJUSTMENT ZERO (FINE) ADJUSTMENT SPAN ADJUSTMENT Sales/Technical Support Telephone: +1 215-355-6900 or e-mail:...

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Product Data ELECTRONIC PRESSURE MEASUREMENT PRODUCTS Model 851 Pressure Transmitter Model Numbering: 851 Electronic Pressure Transmitter 851 Pressure transmitter Process connection T 1/2 inch NPT F Flush1 (Adapter coupling must be welded to process piping, must be HASTELLOY) Pressure type G Gauge A Absolute V Vacuum C Compound Pressure ranges 3015 0006 0015 0030 0100 0300 1000 3000 5000 3 to 15 psi (0.2 to 1 bar) 0/3 to 0/6 psi (0/0.2 to 0/0.4 bar) Consult factory 0/6 to 0/15 psi (0/0.4 to 0/1 bar) 0/6 to 0/30 psi (0/0.4 to 0/2.1 bar) 0/20 to 0/100 psi (0/1.4 to 0/6.9 bar) 0/60 to 0/300...

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