導熱系數(shù)測試工具λ-Meter EP500e(保護熱板儀)是一個根據(jù)護熱板法的操作測試導熱系數(shù)的絕對值的工具,傳熱阻力以及增值系數(shù)粘度值和u值絕緣材料、建筑材料和其他產(chǎn)品。測試按照ISO 8302, EN 12667, ASTM C177和測試機構要求的高測量精度進行。根據(jù)現(xiàn)場生產(chǎn)控制的要求，在短時間內(nèi)完成測試。
| Measurement Mode | single measurement or series of up to 3 single measurements at different arbitrary temperatures | |
| Measurement Temperature | freely selectable in the range of 10 °C up to 40 °C | |
| optional | down to -10? and up to 50 °C | |
| Temperature Difference | freely selectable in the range of 5 K up to 15 K | |
| Measurement Range | R = 0,250…14,0 m2·K/W and λ = 1…250 mW/m·K | |
| optional | R = 0,125…14,0 m2·K/W and λ = 1…500 mW/m·K | |
| optional | R = 0,025…0,250 m2·K/W and λ = 0,25…2,0 W/m·K | |
| Sample Thickness | 10 up to 120 mm | |
| optional | <10 up to 200 mm | |
| Sample Dimensions | optimal: 500 x 500 mm2, measurement zone size at minimum | |
| Measurement Zone | selectable: 250 x 250 mm2, 200 x 200 mm2, 150 x 150 mm2 | |
| Reproducibility | < 0,5 % (mostly < 0,2 %) | |
| Measurement Accuracy | < 1,0 % (mostly < 0,7 %) | |
| The prototype had been used for comparative tests by the FIW Munich (see no: CE 1-1/99). | ||
| Dimensions?(Length x Width x Height) | 63 x 63 x 88 cm3 | |
| Mass | ca. 85 kg | |
| Power Supply | 230 V / 50 Hz | |
| Power Consumption | max. 450 W | |
| Protection Class / Degree of Protection | I / IP 20 | |
| Cooling-/Heating unit: | 12 air-cooled high performance Peltier modules | |
