Insulation amplifier; Current input signal; Current and voltage output signal; Supply voltage: 24 VDC; 6 mm module width; 2.50mm² Short description: The 857-420 Repeater Power Supply connects 2- or 3-wire transmitters in the field. It provides the required power and transmits analog signals in an electrically isolated manner. Features: Powering SMART transmitters The change between measuring ranges is calibrated Safe, 3-way isolation with 2.5 kV test voltage according to EN 61140
Insulation amplifier; Current input signal; Current and voltage output signal; Supply voltage: 24 VDC; 6 mm module width; 2.50mm²
Short description:
The 857-420 Repeater Power Supply connects 2- or 3-wire transmitters in the field. It provides the required power and transmits analog signals in an electrically isolated manner.
Features:
| Configuration options | DIP switches |
| Input signal type | Current |
| Input signal, current | 0 … 20 mA; 4 … 20 mA |
| Input resistance (intput/current) | ≤ 50 Ω |
| Sensör beslemesi | Uv = 18 V; 30 mA |
| Maks. giriş sinyali | 50 mA |
| Output signal type | Current Voltage |
| Output signal voltage | 0 … 5 V; 1 … 5 V; 0 … 10 V; 2 … 10 V |
| Output signal current | 0 … 20 mA; 4 … 20 mA (calibrated switchable) |
| Load impedance (output/voltage) | ≥ 2 kΩ |
| Load impedance (output/current) | ≤ 600 Ω |
| Offset | ≤ 20 µA |
| Residual ripple | ≤ 10 mV (rms) |
| Max. operating frequency | 100 Hz |
| Step response typ. | 3,5 ms |
| İletim hatası | ≤ 0.1 % of upper range value |
| Sıcaklık katsayısı | ≤ %0,01 /K |
| Type of power supply | 24 VDC |
| Nominal supply voltage US | DC 24 V |
| Supply voltage range | ±30 % |
| Current consumption at supply voltage | ≤ 45 mA |
| Test voltage (input/output/supply) | AC 2,5 kV; 50 Hz; 1 min |
| Koruma sınıfı | IP20 |
| Bağlantı teknolojisi | CAGE CLAMP® S |
| Tek damarlı boylar | 0,08 … 2,5 mm² / 28 … 14 AWG |
| İnce bükümlü kablolar | 0,34 … 2,5 mm² / 22 … 14 AWG |
| Sıyırma uzunluğu | 9 … 10 mm / 0.35 … 0.39 inch |
| Width | 6 mm / 0.236 inch |
| DIN rayın üst kenarından yükseklik | 97,8 mm / 3.85 inch |
| Depth | 94 mm / 3.701 inch |
| Montaj tipi | DIN 35 ray |
| Renk | açık gri |
| Ağırlık | 37 |
| Surrounding air (operating) temperature | -25 … 70 °C |
| Surrounding air (storage) temperature | -40 … 85 °C |
| Uygunluk işareti | CE |
| Product Group | 6 (Interface Electronics) |
| SAP´den ambalaj tipi | bag |
| Country of origin | DE |
| GTIN | 4045454471330 |
| Customs Tariff No. | 85437090300 |
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