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FAQs ABOUT CALORVAL ANALYZERS
the CalorVal is our btu analyzer for directly measuring total heating value
- how big? 16"h x 12"w x 8.5" d, 40 lbs
- operation range? standard range is 0-1300 BTU/scf (2500 BTU/scf option)
- outputs? 6 relays (high, low, fault, horn, service needed & calibration-in-progress), 4-20mA output tracks the reading & digital output via RS-485 Modbus, half duplex allows access to entire menu system
- hazardous area classification? flame cell: class I div 1 atmospheres, overall assembly: class I div 2 locations. class I div 1 (optional)
- outdoor installation? NEMA 4X option
- utilities required? hydrogen, compressed air, compressed nitrogen, pure methane span gas, 120 VAC power (230 VAC option)
- utility consumption specs? hydrogen: 40 liters per day, compressed air: 0.8 liters per minute, nitrogen: 25 liters per minute
- why h2 fuel & not the sample stream as fuel source? h2 is a clean fuel with a known BTU value & readily available in pure form, where as the stream composition is not constant
- why compressed n2 for the aspirator gas? nitrogen is used to remove oxygen from under the cover to eliminate the risk of an explosion in case of a fuel line or sample line leak
- which approvals? FM (standard), FMc & ATEX (optional)
- how many installations? over 125 units worldwide (as of 8/17)
- how is the sample brought into the analyzer? a nitrogen driven aspirator (venturi effect) is used to bring in and exhaust the sample
- what are the sample wetted parts? flame cell is made up of 3 hard coated (MIL-A-8625 type III class 1) anodized aluminum blocks, all tubing is stainless steel & all tube fittings are dual ferrule stainless steel
- is the sample capillary protected? sample capillary is protected upstream by the flame arrestor/filter
- read the wobbe index? can only make a calorific value (BTU/scf) measurement
- is it heated? fully heated to 120°c to prevent condensation & minimize downtime due to clogging
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