The Berthold 38477-111 (UniProbe LB 490 Level Evaluation Unit) is an industrial level evaluation unit equipped with a NaI 50/50 crystal scintillation counter and a radial irradiation collimator. Designed for demanding environments, this unit features a stainless steel housing with water cooling and flame proof protection rated for ATEX II 2GD Ex d IIC T6 IP66 T 70°C and FM/CSA Class I and II, Division 1 and 2, alongside NEMA 4X / IP 66 protection. It operates on a 95 to 250 V, 50 to 60 Hz power supply and functions within an ambient temperature range of -40 to +50. The unit includes menu-controlled calibration via a HART-communicator, automatic decay compensation, and error indication. For connectivity and control, it offers one isolated passive analog output (0/4 to 20 mA, switchable to active), one digital input for a hold-signal, three configurable relays for alternative signals, and one failure relay, along with four radial 3/4" NPT conduits.
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| Manufacturer | Berthold |
|---|---|
| Country | |
| Part number | 38477-111 |
| Inner Code | 513372 |
| Custom Code | 90222900 |
| Product type | UniProbe LB 490 Level Evaluation Unit |
|---|---|
| Scintillation counter | crystal NaI 50/50 |
| Collimator for irradiation | radial |
| Power supply | 95 - 250 V, 50 - 60 Hz |
| Ambient temp | -40 to +50 |
| Analog output | 0/4 - 20 mA, isolated, passive, switchable to active |
| Digital-Input | for hold-signal |
| Relays rating | Max. 250VAC or 30VDC at max. 5A noninductive |
| Relays | 3 relays, alternative signals (hold, max / min alarm, detector temp., rad. interference) |
| Failure relay | 1 |
| Conduits | 4 conduits radial 3/4" NPT |
| Flame proof protection ATEX | ATEX II 2GD Ex d IIC T6 IP66 T 70°C |
| Flame proof protection FM/CSA | Class I, Division 1&2, Groups A, B, C, D; Class II, Division 1&2, Groups E, F, G |
| Protection | Nema 4X / IP 66 |
| Housing | stainless steel with water cooling |
| Customs tariff number | 90222900 |