Digital guide
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Bently 3500/93 135785-02
Technical Specifications:
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Display Type: Transflective FSTN LCD, 640 × 200 dots
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Backlight: White electroluminescent, life >20,000 h
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Brightness: 120 cd/m²
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Power Consumption: 16 W max (backlight on)
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Supply Voltage: 18 – 36 VDC
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Operating Temperature: –20 °C to +60 °C
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Approvals: ATEX Ex ia IIC T4 Ga, IECEx, CSA Class I Div 2
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Communication: RS-422, USB device port on front for local laptop connection
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Additional Ports: Front USB-B for local configuration laptop
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Weight: 2.15 kg (display unit)
Detailed content
Functional Features:
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Backlight auto-dims after 10 min to extend life; re-activates on key-press
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Same six-button navigation and key-lock security
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Same multilingual menu (EN, ES, FR, DE, ZH)
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Same hot-swap capability when externally powered
Application Scenarios:
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Refinery compressor house with low ambient light—operators view thrust position without flashlights
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Arctic platform with 24 h darkness—backlight essential for local readings
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SIL 2 overspeed test—local acknowledgement of speed channel alarms
