Calorimeter
CWD BASIC
CWD product series
The CWD Basic is the ideal entry-level model in the proven CWD product series and offers reliable and precise determination of key gas quality parameters. Developed for standard industrial applications, the device combines the core technologies of the CWD series in an economical and robust system – perfect for processes that require reliable reliable measurement of calorific and heating value and Wobbe index but do not require advanced special functions.
With its compact design, robust measuring principle and fast, low-drift analysis, the CWD Basic is ideal for everyday process monitoring, gas quality control and energy optimization. Thanks to the proven CWD sensor technology, the device delivers stable long-term results and enables easy integration into existing plants and control systems.
The CWD Basic is therefore the right choice for plant operators who require a cost-efficient, industrial and permanently reliable gas analysis.
| Application | Wobbe Index Range Start (MJ/m³) | Wobbe Index Range End (MJ/m³) | Accuracy |
|---|---|---|---|
| LPG-Air for Appliances | 30 | 80 | 2 FSR |
| Biogas | 14.5 | 25 | 2 FSR |
| Blast Furnace Gas | 2.5 / 2.5 / 3 | 4.7 / 6 / 5 | 2 FSR |
| Carbide Gas | 8.3 / 12.5 | 12.5 / 19 | 2 FSR |
| Coke Oven Gas | 19 | 29 | 2 FSR |
| Corex Gas | 4.5 | 9 | 2 FSR |
| Fuel Gas | 0 / 0 | 30 / 30 | 2 FSR |
| LDG (Linz-Donawitz Gas) | 3 / 5 | 8 / 8 | 2 FSR |
| LPG-Air | 30 | 60 | 2 FSR |
| Mixed Gas | Various mixed gases – details available on request | ||
| Natural Gas | 30 / 0 | 60 / 30 | 1 FSR / 2 FSR |
| Natural Gas-LPG-Air | 30 | 60 | 2 FSR |
| Refinery Gas | 25 | 70 | 2 FSR |
| Synthesis Gas | 0 | 10 | 2 FSR |
| Parameter | Wert |
|---|---|
| Gewicht | ca. 54 kg |
| Abmessung (H × B × T) | 1020 × 720 × 337 mm |
| Schutzart | IP50 |
| Umgebungstemperatur | 5–40 °C |
| Erlaubte Temperaturänderung | ≤ 5 °C pro Stunde |
| Umgebungsfeuchte | 0–95 % rF |
| Außendruck | 800–1100 hPa (0.8–1.1 bar) |
| Eingangsdruck Gas | 20–40 mbar |
| Eingang Prozessgas | 1, weitere optional |
| Eingang Testgas | 1 pro Messbereich |
| Relative Gasfeuchte | ≤ 95 %, kondensatfrei |
| Spannung | 240 VAC, 50/60 Hz; 110 VAC, 60 Hz |
| Max. Leistungsaufnahme | 200 VA |
| Schnittstellen | 8 SPDT Relais; 3× 4–20 mA; weitere Busoptionen verfügbar |
| Anzeigezeit T90 | 20 s |
| Zulassung (optional) | NRTL (SGS), UL61010‑1, CAN/CSA‑C22.2 No. 61010‑1 (Kundenreferenz 710162) |
The CWD product series in comparison
CWD BASIC
Reliable measurement of calorific
and heating value as well as Wobbe index
CWD PLUS
Continuous, highly accurate determination of the Wobbe index
CWD DPC
for use in accordance with Class I Division 2, Groups B, C, D, T4
CWD SPC
Reliable, reproducible measured values in real time for optimum monitoring
CWD EXP
Safe shutdown with changing gas composition Gas composition
CWD HT
The new CWD for precise measured values in the high temperature range
Industry applications
These products can be used in the following sectors.
Iron and steel production
Our appliance series have been used in iron and steel production for many decades.
Biogas
Union Instruments products have proven themselves extensively in biogas upgrading plants.
Petrochemicals and refineries
We produce customized and flexible measurement technology solutions for the petrochemical industry and refineries.
Glass and ceramics
Perfectly coordinated appliance technology for glass and ceramic applications that works both safely and economically.
Natural gas
Our INCA multi-gas analyzers provide efficient solutions for processes in natural gas plants.
Generating energy from waste
Our appliance technology makes an important contribution to the functionality of environmentally friendly and energy-saving system concepts.
Service
We clarify administrative and commercial issues for you.
+49 721 680381-30
Support
You can open a support ticket for technical support for your product.
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Distribution
We prepare quotations for you, clarify questions about invoicing and manage your maintenance contract.
+49 721 680381-20
Downloads
Here you will find various downloads to support you.
Brochures, data sheets and application reports – we have all the relevant information for you here.
Industries
Our key application areas at a glance.
We supply a wide range of industrial plants such as steel production, the natural gas industry and biogas producers.
Products
Special products for your industrial application.
Our range includes the INCA, CWD and SIRA product series and the CAM module – combined with top advice and service.