Model 88C
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Catalog excerpts

Product Data ELECTRONIC PRESSURE MEASUREMENT PRODUCTS Model 88 Pressure Transmitter DESCRIPTION The Model 88 is the most durable, accurate and costeffective pressure transmitter presently available. A fullfeatured, all stainless steel transmitter, it is designed for years of stable performance in even the toughest environmental and media conditions. Approvals include ratings for CSA, for both intrinsic safety and explosionproof, and FM for explosion-proof only. The Model 88 also meets NACE standards for offshore applications. A five year warranty is standard for the 88C. The heart of the Model 88 pressure transmitter is a silicon piezoresistive sensing chip. This miniature microetched semiconductor gives a voltage output proportional to the applied pressure. The chip is isolated from the process media by a stainless steel diaphragm. A silicone oil or other specified fill fluid is used to transmit the process pressure to the sensor. The small size and light weight of the Model 88 transmitter eliminates the need for complicated mounting hardware and mechanical supports, thereby reducing installation time substantially. The integral junction box permits simple field wiring without the need for additional hardware, adding to the speed and ease of installation. A 4 to 20 mA output is standard with a 12 to 40 VDC power supply. With all 316 stainless steel welded construction, the Model 88 is compatible with corrosive media and hazardous environments. With the cover retained by a stainless steel chain and no internal jumpers for span turndown, losses due to misplaced or dropped parts are eliminated. An amplifier PCB enclosed in a sealed chamber is used to convert the millivolt signal from the sensor to a calibrated 4 to 20 mA transmitter output. Feedthroughs for EMI and RF protection are used between the amplifier board and the terminal housing. Each transmitter is tested over both pressure and temperature ranges. A compensator circuit is used to bring the output of the sensor into specification. After compensation, every transmitter is tested a second time for pressure and temperature effects to ensure that it meets performance and specifications. FEATURES l A miniature, low-priced, full-featured transmitter – l All welded 316 stainless steel construction and wetted parts (no aluminum) l Ranges from 0 to 3 through 0 to 5000 psig (0 to 0.2 to 0 to 350 bar) l 0.25% accuracy l Zero and span adjustability l Full 5:1 range turndown l Integral junction box l FM for explosion-proof; CSA for explosion-proof and intrinsically safe l 4 to 20 mA output at 12 to 40 VDC l 5-year warranty Sales/Technical Support Telephone: +1 215-355-6900 820 Pennsylvania Boulevard | Feasterville, PA 19053 U.S.A. | Fax: +1 215-354-1801 © 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. K796382 – Effective: 4-2013, Supersedes: New (110107) 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 88 Pressure Transmitter SPECIFICATIONS Physical Specifications Functional Specifications Process Wetted Parts: 316 stainless steel Service: Liquid, gas or vapor Range Limits: 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) 0/15 to 0/30 psi (0/1 to 0/2 bar) 0/20 to 0/100 psi (0/1.4 to 0/7 bar) 0/60 to 0/300 psi (0/4 to 0/20 bar) 0/200 to 0/1000 psi (0/14 to 0/70 bar) 0/600 to 0/3000 psi (0/40 to 0/200 bar) 0/1000 to 0/5000 psi (0/70 to 0/350 bar) NonWetted Parts: 316 stainless steel Cast Head:...

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Product Data ELECTRONIC PRESSURE MEASUREMENT PRODUCTS Model 88 Pressure Transmitter RECEIVER POWER SUPPLY * Contact factory for information on calibration system EXTERNAL POWER SUPPLY TEST TERMINAL (+) (+) SIGNAL TERMINAL GROUND TERMINAL TEST POINT (-) TURNDOWN ADJUST TEST TERMINAL (-) (-) SIGNAL TERMINAL FIELD TERMINAL COMPARTMENT CALIBRATION PRESSURE SOURCE ZERO ADJUST SPAN ADJUST Model Numbering: 88 Pressure Transmitter 88 Pressure transmitter Approvals C FM certified for explosion-proof and CSA certified for explosion-proof and intrinsic safety Pressure ranges 001 002 003 004 005 006...

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