the CalorVal is our btu analyzer for directly measuring total heating value

  1. how big? 16"h x 12"w x 8.5" d, 40 lbs
  2. operation range? standard range is 0-1300 BTU/scf (2500 BTU/scf option)
  3. 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
  4. hazardous area classification? flame cell: class I div 1 atmospheres, overall assembly: class I div 2 locations. class I div 1 (optional)
  5. outdoor installation? NEMA 4X option
  6. utilities required? hydrogen, compressed air, compressed nitrogen, pure methane span gas, 120 VAC power (230 VAC option)
  7. utility consumption specs? hydrogen: 40 liters per day, compressed air: 0.8 liters per minute, nitrogen: 25 liters per minute
  8. 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
  9. 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
  10. which approvals? FM (standard), FMc & ATEX (optional)
  11. how many installations? over 125 units worldwide  (as of 8/17)
  12. how is the sample brought into the analyzer? a nitrogen driven aspirator (venturi effect) is used to bring in and exhaust the sample
  13. 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
  14. is the sample capillary protected? sample capillary is protected upstream by the flame arrestor/filter
  15. read the wobbe index? can only make a calorific value (BTU/scf) measurement 
  16. is it heated? fully heated to 120°c to prevent condensation & minimize downtime due to clogging

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