CalorVal - Gaseous Streams BTU Analyzer
The CalorVal BTU Analyzer continuously measures the heating value (Calorific Value) of gaseous streams of industrial processes. Real time: Direct measure of calorific value. Fast: Less than 3.5 seconds cell response time. Universal: Highly uniform response to a wide variety of combustibles. Continuous: Ongoing measurement, not batched. Reliable: Not poisoned by process contaminant, water, corrosives, or organo-metallics. Fully Heated: The entire analyzer's pneumatic assembly is heated which prevents condensation.
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Product Details
Assembly Design
The CalorVal is an industrial strength assembly consisting of a heated flame cell and integrated controller that continuously measures the heating value (Calorific Value) of gaseous streams of industrial processes.
A carefully metered flame burns at a constant reference temperature inside an explosion proof measuring cell. A sample, drawn from the atmosphere to be monitored, is passed through the flame cell. A thermocouple measures changes in flame temperature. An increase in temperature is directly proportional to the heating value.
Autocalibration solenoids which allow remote activation of calibration tests are standard.
Uniform Response
The analyzer displays a uniform response to a wide range of combustible gases. It measures continuously over the entire measurement range from 0 BTU/SCF up to the full scale of a variety of substances.
Heated Sampling System
The entire analyzer pneumatic assembly is heated up to 120°C (248°F). This prevents condensation of water vapor and other heavier less volatile hydrocarbons eliminating the need for sample conditioning.
The analyzer collects the sample using an aspiratordriven system. There is no pump or other moving parts. This simple and extremely effective design requires very little maintenance, and its performance is unaffected by corrosives or other compounds in the sample stream.
It is suitable for monitoring many common gases and vapors. The analyzer is unaffected by the temperature of the process and can sample streams above 1500°F.
Outputs
The system includes six relays: single-pole, doublethrow relays for Low Limit Alarm, High Limit Alarm, Fault; and single-pole, single-throw relays for Horn, Calibration-in-Progress and Service Needed. Other standard outputs include a 4-20mA analog output and an RS-485 serial port with Modbus protocol. Digital remote access and control is available.
Technical Specifications
- Range:
- 0 to 1300 BTU/SCF as Methane
- 0 to 2500 BTU/SCF as Methane (optional)
- Operating Temperature: Sensor heated up to 120°C (248°F)
- Accuracy: ± 3% of full scale reading or 10% of applied gas whichever is greater
- Repeatability: Within 1% of measurement range
- Zero Stability: ± 1% in 30 days
- Span Stability: ± 5% per year
- Cell Response Time: T90 3.5 seconds
- Ambient Temperature: -20°C (-4°F) to 65°C (150°F)
- Power Requirement:
- 120 VAC +10% –15% 50/60 Hertz
- 400 Watts maximum, 230 VAC optional
- Oxygen: 0-21% O2 in sample
- Compressed Nitrogen: 20 PSIG, regulated, clean, dry
- Nitrogen Consumption: 50 SCFH, 25 LPM, bulk source
- Support Air: 700 - 800 ccpm, 15 PSIG
- Humidity Range: 0% to 100% Relative Humidity
- Relays:
- Three (3) SPDT 60 Watt contacts
- Three (3) SPST 60 Watt contacts
- Relay functions: Six relays for: Low Limit Alarm; High Limit Alarm; Fault; Horn; Calibration-inProgress and Service needed
- Fuel Requirements: 99.99% Hydrogen
- Fuel Consumption: 25 cc/min, 40-45 PSIG
- Alarm Function: Adjustable alarm ranges
- Analog Output: 4-20mA, 275 max. (includes line length)
- Digital Output: RS-485 Serial, Modbus protocol
- Sensor Cell Material: Hard-coat aluminum
- Sample Train Material: Hard-coat aluminum & stainless steel
- Hazardous Area Rating:
- Class 1, Div 2, Groups B, C, D
- Class 1, Div 1 (optional)
- Enclosure Rating
- NEMA 12, indoor
- NEMA 4X (optional)
- Assembly Dimensions: 16” H x 12.1” W x 8.5” D
- Weight: Approx. 18Kg (40 Lbs)
- Approvals
- FM (standard)
- FMc, CE, ATEX (optional)
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