The Berthold 38477-131, also known as the UniProbe LB 490, is an advanced level evaluation unit featuring a 500mm plastic scintillator. Designed for reliable industrial measurement, it operates on a power supply of 95 to 250 V (50 - 60 Hz) and offers menu-controlled calibration via a HART-communicator, alongside automatic decay compensation and error indication. The durable stainless steel housing is equipped with water cooling, IP 66 protection, and Nema 4X ratings. It features flame-proof protection compliant with ATEX II 2GD Ex d IIC T6 IP66 T 70°C and FM/CSA standards for Class I and II, Division 1&2 environments. For connectivity and control, the unit includes one isolated, passive 0/4 - 20 mA analog output (switchable to active), one digital input for a hold-signal, four radial 3/4" NPT conduits, three relays for alternative signals, and one failure relay rated for max. 250VAC or 30VDC at max. 5A noninductive. It functions within an ambient temperature range of -40 to +50 degrees.
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| Manufacturer | Berthold |
|---|---|
| Country | |
| Part number | 38477-131 |
| Inner Code | 513379 |
| Product type | Level Evaluation Unit |
|---|---|
| Catalogue title | 38477-131 |
| Model | UniProbe LB 490 |
| Product Type | Level Evaluation Unit |
| Plastic scintillator length | 500mm |
| Power supply | 95 - 250 V, 50 - 60 Hz |
| Ambient temperature | -40 to +50 |
| Analog output | 0/4 - 20 mA, isolated, passive, switchable to active |
| Digital input | 1 for hold-signal |
| Relays rating | Max. 250VAC or 30VDC at max. 5A noninductive |
| Signal relays | 3 relays, alternative signals |
| Failure relay | 1 |
| Conduits | 4 conduits 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 | stainless steel with water cooling |
| Customs tariff number | 90222900 |