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- For determining the heat flow density u pt max. 150°C.
- Application-oriented designs, consisting of meander of opposing thermocouples that are embedded in a substrate.
- In case of thick substrate no lateral circulation of the heat flow because of sufficient meander shell zone.
- Software for k value measurement, see chapter Software.
Each heat flow plate has been assigned a calibration value, which corresponds to the heat flow density in W/m² when the plate provides an output of 1mV. The Calibration value will be stored as facotry-setting in the ALMEMO® connector so that ALMEMO® devices will immediately indicate the current heat flow density in W/m².
General Technical Data
| Type | Dimensions (mm) | Meander Size(mm) | Substrate | Temperature Stability | Calibr. Val. appr. (W/m2 ≈ mV) | Accuracy of Calibration Value |
|---|---|---|---|---|---|---|
| 117 | ||||||
| 118 | ||||||
| 119 | ||||||
| 120 | ||||||
| 117SI | ||||||
| 118SI | ||||||
| 119SI |
Model | Application | Order Number |
|---|---|---|
| 117 | for even surfaces, e.g. casement sections | FQA017C |
| 118 | for universal applications, e.g. solar-electric systems and insulating plates | FQA018C |
| 119 | especially for constructional industry, brickwork insulating plates, old buildings | FQA019C |
| 120 | small heat flow plate, e.g. for medicine, veterinary medicine, small components etc. | FQA020C |
| 117SI | flexible heat flow plate, suitable for even surfaces, e.g. casement sections | FQA017CSI |
| 118SI | flexible heat flow plate, suitable for even surfaces, e.g. solar-electric systems and insulating plates | FQA018CSI |
| 119SI | flexible heat flow plate, suitable for even surfaces | FQA019CSI |
Pictured FQAD18TSI
- This automatically corrects the heat flow plate’s temperature coefficient using a miniature NTC sensor integrated in the heat flow plate for the purpose of measuring the plate’s mean temperature.
- It measures heat flows and temperatures using a 24-bit A/D converter incorporated in the ALMEMO® D6 plug.
- Two measuring channels are programmed (at our factory). Plate’s mean temperature (°C, t) Heat flow, temperature-compensated (W/m², fq))
General Technical Data
Heat Flow Sensor (See Technical Data Table Below)
- Accuracy of calibration value at nominal temperature 5 %
- Nominal temperature 23 °C
- Temperature coefficient -0.12 % / K (epoxide plate), -0.17 % / K (silicone plates)
Temperature Sensor
- Sensor element Miniature NTC type N
- Accuracy ±0.5 K at 0 to +80 °C
A/D converter incorporated in ALMEMO® D6 plug
Input 1
- NTC sensor (clamp connector in plug)
- Measuring range -50.00 to +125.00 °C
Input 2
- Voltage mV (clamp connector in plug)
- Measuring range 0 to 26 mV, 0 to 260 mV
- Precision Class AA
- Refresh rate 0.4 seconds for both channels
- Supply voltage 6 to 13 VDC
- Current consumption 4 mA
| Variants including manufacturer’s test certificate | Order Number | ||
|---|---|---|---|
| Heat flow plate with integrated temperature sensor cable permanently fitted, PVC, length 2 meters with ALMEMO® D6 plug | |||
| Type 117 | Substrate Epoxy resin, Dimensions 100 x 30 x 1.5 mm | FQAD17T | £635.00 ex VAT | £762.00 Inc VAT Add to basket |
| Type 118 | Substrate Epoxy resin, Dimensions 120 x 120 x 1.5 mm | FQAD18T | £723.00 ex VAT | £867.60 Inc VAT Add to basket |
| Type 119 | Substrate Epoxy resin, Dimensions 250 x 250 x 1.5 mm | FQAD19T | £1,001.00 ex VAT | £1,201.20 Inc VAT Add to basket |
| Type 117SI | Substrate Silicone, Dimensions 100 x 30 x 3 mm | FQAD17TSI | £746.00 ex VAT | £895.20 Inc VAT Add to basket |
| Type 118SI | Substrate Silicone, Dimensions 120 x 120 x 3 mm | FQAD18TSI | £862.00 ex VAT | £1,034.40 Inc VAT Add to basket |
| Type 119SI | Substrate Silicone, Dimensions 250 x 250 x 4 mm | FQAD19TSI | £1,257.00 ex VAT | £1,508.40 Inc VAT Add to basket |
