09-05-2012, 05:29 PM
SULFURIC ACID MANUFACTURING
Liq_ADS_2800-22.pdf (Size: 88.52 KB / Downloads: 116)
INSTRUMENTATION
Sulfuric acid is very corrosive, so the percent concentration
determination requires a sensor with high
chemical resistance and analyzers that are pre-programmed
with a conductivity-to-percent-concentration
conversion equation. Emerson Process
Management offers both insertion and flow-through
sensor installation options and several analyzers with
the equation required for the 96 to 100 percent
range. Measurements above 100 percent sulfuric
acid are usually based on conductivity values only.
The popular and versatile Model 228 insertion/submersion
sensor should be ordered in the chemically
resistant tefzel (option -04) material for this application.
A convenient alternative is the modular flowthrough
Model 242 toroidal conductivity sensor with
non-wetted ANSI & DIN flange installation, optional
Hastelloy C-276 contact rings, and a teflon or alumina
liner for abrasion resistance.
INSTRUMENTATION Model 54e HART Analyzer/Controller
• Two 4-20 mA outputs, and three alarms
• Optional PID & TPC controller
• Backlit display for ease of use
• No manual needed, menu driven in clear English, German,
Portuguese, French, & Spanish
• Simple-to-read error codes -- no mnemonics or error codes
Model 228 Toroidal Conductivity Sensor
• Available in chemically-resistant
Tefzel.
• Includes integral temperature compensator
• Convenient installation for cleaning and preventative maintenance.