The digital draft gauge for chemical boiler furnace delivers real‑time, high‑resolution measurement of combustion air draft, enabling plant engineers to maintain optimal furnace pressure while meeting strict safety and emission standards. Designed for the demanding environment of chemical processing, this instrument combines rugged hardware with intuitive software, ensuring reliable performance even under corrosive, high‑temperature conditions.
A stainless‑steel pressure transducer converts draft pressure into a digital signal, which is then processed by an on‑board microcontroller. The gauge displays absolute pressure, differential pressure, and temperature on a backlit LCD. Built‑in diagnostics continuously verify sensor integrity, and the device communicates via Modbus‑RTU or 4‑20 mA loops to a DCS or PLC, allowing seamless integration into existing control strategies. Automatic compensation for temperature drift ensures that the reading remains accurate across the full operating range.
| Parameter | Typical Value | Unit | Notes |
|---|---|---|---|
| Measurement Range | ‑200 to +200 | Pa | Adjustable via firmware |
| Accuracy (±FS) | 0.2 | %FS | At 25 °C, 0 % RH |
| Operating Temperature | ‑40 to +85 | °C | Industrial‑grade housing |
| Supply Voltage | 24 | VDC | ±10 % tolerance |
| Communication | Modbus‑RTU, 4‑20 mA | — | RS‑485 terminal block |
| Ingress Protection | IP66 | — | Dust‑tight, water‑jet resistant |
| Material Construction | 316L Stainless Steel | — | Corrosion‑resistant for acidic gases |
All parameters are customizable per order; contact us for a tailored solution.
1. Robust environmental protection: 316L stainless housing and IP66 rating exceed the durability of typical brass or plastic gauges, guaranteeing a 5‑year MTBF in corrosive atmospheres.
2. Integrated self‑diagnostics: The device alerts operators to sensor drift, wiring faults, or communication loss before a failure occurs, reducing unplanned shutdowns.
3. Seamless system integration: Standard Modbus‑RTU and 4‑20 mA outputs fit directly into most DCS/PLC environments, eliminating the need for additional gateways.
4. Scalable customization: Firmware can be configured for multiple set‑points, alarm thresholds, and data logging intervals, matching the specific control philosophy of each plant.
The standard MOQ is 10 units; for bulk projects the price can be further optimized. Special material or firmware requests may adjust the MOQ, and our engineering team will confirm the exact figure during the quotation phase.
Yes. Calibration certificates traceable to ISO 9001‑approved laboratories are provided on request. Calibration can be performed at the factory or on‑site by qualified technicians.
Standard lead time ranges from 15 to 45 days, depending on the selected options and current production schedule. Rush orders are accommodated for an additional surcharge.
All units carry a 24‑month limited warranty covering manufacturing defects. Technical support is available 24 × 7 via phone or email, with on‑site service options for critical installations.
Contact our sales engineering team today to discuss specifications, request a quotation, or arrange a demonstration. The digital draft gauge for chemical boiler furnace is the reliable, compliant solution your plant needs to stay competitive and safe.