Edgetech DewMaster chilled-mirror dew/frost point hygrometer, −90 to +95 °C dp
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Quick overview
- Type: Moisture & humidity
- Signal / Protocol: 4–20 mA, RS-232, Relay / switch, Voltage
- Hazardous area: Hazardous-area rated / option
- Genuine productsSourced from the manufacturer or authorised channels
- Delivery across BangladeshDhaka, Chattogram and all industrial zones
- After-sales supportInstallation guidance and warranty handling
- Reply within 24 hoursCall +880 1713 552466 or email hello@argonmark.com
Specifications
| General | |
|---|---|
| Part no. | BD-1435 |
| Category | Oil & Gas Instruments |
| Group | Instrumentation & Control |
| Brand | Edgetech Instruments |
| Model | DewMaster |
| Technical | |
| Type | Moisture & humidity |
| Signal / Protocol | 4–20 mA, RS-232, Relay / switch, Voltage |
| Hazardous area | Hazardous-area rated / option |
Datasheet
Technical features
| Primary-method chilled mirror | drift-free, certified against NIST-traceable standards |
|---|---|
| Air, fan or liquid-cooled sensors to suit the required dew point range | |
| Automatic Balance Control corrects for mirror contamination; easy to clean, rarely needs replacement | |
| Automatic start-up, self-diagnostics, pressure-compensated dew point | |
| Bench-top, rack-mount or NEMA 4X enclosures; remote sensors up to 76 m | |
| Can serve as a calibration standard or for continuous industrial monitoring | |
Applications
| Calibration standard for humidity and dew point instruments | |
| Moisture monitoring in industrial gas streams and processes |
Key specifications
| Measured variables | Dew/frost point, ppmv, % RH, pressure, air temperature |
|---|---|
| Range | −40 to +95 °C dp (ambient sensors) down to −90 °C (liquid-cooled X3CC) |
| Accuracy | ±0.2 °C dew/frost point (±0.1 °C optional) |
| Output | 4–20 mA, 0–5 V DC, RS-232; 2 alarm relays |
| Power supply | 90 to 230 V AC, 50–400 Hz |
| Sensors | Flow-through, insertion and 316 SS corrosion-resistant chilled-mirror sensors |
Performance
| Dew/frost point accuracy | ±0.2 °C standard; ±0.1 °C optional |
|---|---|
| RH / ppmv | 0–100% RH; 0–999,999 ppmv (non-condensing) |
| Pressure measurement | ±0.5% of full scale |
| Air temperature sensor | −100 to +250 °C, ±0.1 °C |
| Display resolution | 0.1 °C; 0.01 psia; 0.1 ppmv below 1,000 ppmv |
| Sample flow | 0.25 to 2.4 l/min |
Electrical and packaging
| Outputs | Three outputs: 4–20 mA, 0–5 V DC, RS-232; track or hold during balance |
|---|---|
| Alarms | Two Form C SPDT relays, 3 A at 24 V DC / 120 V AC, set points −99.9 to +99.9 °C |
| Display | 8-line backlit graphic LCD, three parameters at once |
| Power | 90 to 230 V AC ±10%, 50–400 Hz |
| Operating temperature | Control unit −10 to +60 °C; sensors −40 to +100 °C |
| Enclosures | Bench-top 2.8 kg, rack mount 3.2 kg, NEMA 4 wall mount 8.6 kg |
| Options | Remote sensor cable to 76 m, explosion-proof sensor housing, filters, sampling pump module |
Chilled mirror sensors
| Sensor | Type / cooling | Dew/frost point range | Depression | Construction | Max. pressure |
|---|---|---|---|---|---|
| DS2 | Insertion, ambient | −40 to +95 °C | 60 °C | Aluminium | 100 psi |
| S2 | Flow-through, ambient | −40 to +95 °C | 60 °C | Aluminium | 900 psi |
| S2SC | Flow-through, fan cooled | −45 to +95 °C | 65 °C | Aluminium | 900 psi |
| S3 | Flow-through, fan cooled | −60 to +95 °C | 85 °C | Aluminium | 900 psi |
| S3 (liquid) | Flow-through, liquid cooled 0–20 °C | −70 to +95 °C | 95 °C | Aluminium | 900 psi |
| X3 | Corrosion resistant, ambient | −40 to +95 °C | 65 °C | 316 stainless steel | 300 psi |
| X3F | Corrosion resistant, fan cooled | −60 to +95 °C | 85 °C | 316 stainless steel | 300 psi |
| X3SF | Corrosion resistant, fan cooled | −70 to +95 °C | 95 °C | 316 stainless steel | 300 psi |
| X3LC | Corrosion resistant, liquid cooled 0–20 °C | −80 to +95 °C | 115 °C | 316 stainless steel | 300 psi |
| X3CC | Corrosion resistant, liquid cooled −15–0 °C | −90 to +95 °C | 125 °C | 316 stainless steel | 300 psi |
Notes
| Data from the manufacturer's published datasheet. Confirm model, range, materials and approvals with Argonmark before ordering. |
Photo: courtesy of Edgetech Instruments, used with permission (source) — background removed by Argonmark. All photo credits
Description
The Edgetech DewMaster is a high-precision chilled mirror hygrometer that measures dew/frost point directly by the primary chilled-mirror method, with ±0.2 °C accuracy (±0.1 °C optional), and also reports ppmv, relative humidity and pressure. Interchangeable flow-through, insertion and 316 stainless steel sensors, cooled by ambient air, fan or liquid, cover from +95 °C down to −90 °C dew point.
It has automatic contamination compensation, an 8-line display, three outputs (4–20 mA, 0–5 V, RS-232) and two alarm relays, in bench-top, rack or NEMA 4 versions, and is used both as a calibration standard and for continuous process monitoring.
Argonmark Ltd supplies Edgetech Instruments instruments across Bangladesh — Dhaka, Chattogram, Gazipur, Narayanganj and the gas fields, refineries, terminals and power plants beyond. Send us the model, range, process connection, output and any hazardous-area requirement, and we will confirm the right configuration, lead time and price.
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