Portable gas calorimeter

The portable gas calorimeter utilizes a 320*240 dot matrix LCD display, making it easy to carry and operate. Developed using imported long-life electrochemical, infrared, and thermal conductivity sensors, combined with new microcontroller technology, this portable gas and biogas calorimeter simultaneously measures the volume concentration of gases such as CO, CO2, CH4, H2, O2, and CnHm. It automatically calculates and displays the calorific value in either kcal or kJ, with options for high and low calorific values. Equipped with a built-in air pump, it automatically performs air calibration for zero point upon startup. With automatic analysis and detection, the software automatically corrects cross-interference between measured components, minimally affected by external factors, ensuring the accuracy of measurement results. Multiple measurement modes can be freely combined, offering a versatile machine that meets customer requirements for on-site gas measurement

Product Specifications

Measured components: CO, CO2, CH4, H2, O2, CnHm (customizable upon request; must be specified when ordering)

Measurement range: CO/CO2/CH4/H2: (0-100%); O2: 0-25%; CnHm: 0-50% (range can be customized) Resolution: 0.01%/0.1% Measurement accuracy: ≤±2%F.S Calorific value accuracy: ≤±2%
Repeatability: ≤±1%F.S Stability: ≤±1%F.S/7d Response time: T90≤30S Warm-up time: ≤45min Sample gas flow rate: 1000±100mL/min Sample gas temperature: 0-50℃ Environmental temperature: -5℃ to +50℃ Environmental humidity: ≤90%RH Communication mode: RS232 or RS485 (communication protocol: Modbus RTU) Charging power supply: 100~240VAC 50/60Hz 1A Standby time: 6-8 hours of operation on a single charge Overall dimensions: 500L x 220W x 400H (mm) Instrument weight: approximately 8kg Measurement principle: electrochemical sensor / infrared sensor / thermal conductivity sensor Measuring medium: blast furnace, converter, coke oven, generator gas, kiln, calcium carbide furnace exhaust gas, biogas (if containing gases such as SO2, NOX, NH3, H2S, etc., must be specified when ordering) Media requirements: Free of water, oil, and dust Instrument lifespan: Over five years (under normal usage) Sensor lifespan: greater than three years (under normal usage) Precision air pump: built-in imported sampling pump