Humidity & Moisture Transmitters
DB460 Cabinet Extractable Flue Gas Humidity Analyzer
Extractable flue gas humidity analyzer for CEMS and high-temperature, high-dust industrial exhaust environments.
DB
DABECO Co. Ltd.
DB450 MINI Cabinet Extraction Type Flue Gas Humidity Analyzer
Compact extractable flue gas humidity analyzer for CEMS and high-temperature, high-dust industrial exhaust environments.
Key Features
- Capacitance-method humidity sensing
- Compact cabinet form factor
- Extraction (split/pumped) sampling for harsh flue gas conditions
- Optional electric heat tracing, 50-150°C, to prevent line condensation
- Selectable display: volume ratio (0-40% VOL) or relative humidity (0-100% RH)
- Four-digit tube display
- 4-20mA analog output plus RS485 digital interface
- IP65-rated instrument enclosure
- Wall-mounted cabinet installation
Overview
The DABECO DB450 MINI humidity analyzer is widely used in continuous emission monitoring systems (CEMS) for flue gas humidity measurement. It is also suited to humidity measurement and control in wood, building materials, paper, chemical, pharmaceutical, fiber, textile, tobacco, vegetable, and food processing applications. For low-temperature, high-humidity, and high-dust environments, the extraction sampling design with optional electric heat tracing provides a reliable, compact flue gas humidity solution.
Working Principle
The DB450 MINI uses a capacitance-method sensing element housed in a compact wall-mounted enclosure, drawing sample gas via an extraction (split/pumped) sampling method rather than in-situ insertion. Optional electric heat tracing (50-150°C) keeps the sample line above dew point to prevent condensation before it reaches the sensor, which displays either volume ratio or relative humidity (one mode at a time, specified at order) on a four-digit tube display, with 4-20mA analog and RS485 digital outputs.
Applications
Benefits
- Compact footprint suits sites with limited installation space versus the full-size DB460
- Extraction sampling with heat tracing handles low-temperature, high-humidity, high-dust flue gas that would damage in-situ sensors
- Dual output (4-20mA + RS485) supports both simple loop integration and digital SCADA/CEMS connectivity
- IP65 enclosure suits demanding industrial installation sites
Technical Specifications
| Principle | Capacitance method |
|---|---|
| Range | Volume ratio 0-40% VOL or Relative humidity 0-100% RH (one mode at a time, specify at order) |
| Resolution | 0.1% |
| Accuracy | <±1.5% FS |
| Repeatability | <±1% |
| Response Time (T90) | <15s |
| Type | Four digital tube display |
|---|
| Sampling Mode | Extraction type |
|---|---|
| Heat Tracing | Electric heat tracing (optional), 50°C-150°C |
| Sample Gas Requirement | No flammable gas, no strongly corrosive gas |
| Analog | 4-20mA (non-isolated, load resistance <500Ω) |
|---|---|
| Digital | RS485 |
| Instrument Working Temperature | -10°C to +50°C |
|---|
| Supply | DC 24V |
|---|---|
| Consumption | <3A |
| Protection Rating | IP65 (instrument box) |
| Installation | Wall-mounted |
| Service Life | Instrument >36 months; sensor >24 months (normal use) |
Downloads
DatasheetPDF
Frequently Asked Questions
What warranty is offered on this product?
All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.
Do you provide installation and commissioning?
Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.
Are spares and calibration available locally?
Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.
How long is the typical lead time?
Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.
Request a Quote — DB450 MINI Cabinet Extraction Type Flue Gas Humidity Analyzer
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