規格
Firstek Scientific Environmental Chamber
(Program mable) Bench Top Constant Temp & Humid Chamber
BTH ：Fix point PID control LED display
TPBTH：10 Programs. 100 steps.9999 cycles.
Specifications:
| MODEL | BTH 80/-20 / BTH 80/0 | BTHC 120/-20 / BTHC 120/0 |
| TPBTH 80/-20 / TPBTH 80/0 | TPBTH 120/-20 / TPBTH 120/0 | |
| Temp. range | -20℃~100℃ / 0℃~100℃ | -20℃~100℃ / 0℃~100℃ |
| Humid range | 20%~95% R.H | |
| Temp & Humid. constancy | ±0.3℃ ±2.5%R.H | |
| Temp & Humid. uniformity | ±1°C ± 3%R.H | |
| Refrigerant | R404A / 650g | R404A / 650g |
| Heating up time | -20℃~100℃ with in 35 mins | |
| Pull down time | 20℃~-20℃ with in 45 mins | |
| Interior dimension | W40 / D40 / H50 cm | W50 / D40 / H60 cm |
| Exterior dimension | W88 / D81 / H81 cm | W98 / D81 / H97 cm (with wheels) |
| Interior/ Exterior material | Stainless steel plate (SUS 304)/(SUS 304) tough powder-coated | |
| Insulation | Rigid polyurethane foam | |
| Refrigeration system | Single stage refrigeration | |
| Safety devices | Refrigerator over load relay. Refrigeration high pressure switch. | |
| Protection relay Protection fuse. Boil dry protector. | ||
| Overheat protector. Alarm | ||
| Accessories | Viewing window. Shelf：2pcs(freely adjustable). Chamber lamp. | |
| Power source | AC220V. 50/60Hz 1Ø | |
| Weight | 120 kg | 150 kg |
