The Berthold 38477-191, also known as the UniProbe LB 490, is a Level Evaluation Unit designed for industrial measurement tasks. Featuring a 2000mm plastic scintillator, this unit operates on a power supply of 95 to 250 V (50 - 60 Hz). It includes menu-controlled calibration via a HART-communicator, automatic decay compensation, and error indication. The stainless steel housing comes equipped with water cooling and provides IP 66 and Nema 4X protection. Designed for demanding environments, the 38477-191 holds ATEX and FM/CSA flame proof certifications, making it suitable for hazardous locations. The unit features one isolated, passive 0/4 - 20 mA analog output switchable to active, one digital input for a hold-signal, three configurable relays for alternative signals, and one failure relay.
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| Manufacturer | Berthold |
|---|---|
| Country | |
| Part number | 38477-191 |
| Inner Code | 513386 |
| Product type | UniProbe LB 490 Level Evaluation Unit |
|---|---|
| Plastic scintillator length | 2000 mm |
| Power supply | 95 - 250 V, 50 - 60 Hz |
| Ambient temperature | -40 to +50 °C |
| Analog output | 1 x 0/4 - 20 mA, isolated, passive, switchable to active |
| Digital input | 1 x for hold-signal |
| Relays rating | Max. 250VAC or 30VDC at max. 5A noninductive |
| Relays configuration | 3 relays (alternative signals: hold, max / min alarm, detector temp., rad. interference) + 1 failure relay |
| Conduits | 4 radial 3/4" NPT |
| ATEX protection | ATEX II 2GD Ex d IIC T6 IP66 T 70°C |
| FM/CSA protection | Class I, Division 1&2, Groups A, B, C, D; Class II, Division 1&2, Groups E, F, G |
| Enclosure protection | Nema 4X / IP 66 |
| Housing material | Stainless steel with water cooling |
| Customs tariff number | 90222900 |