Description
The 9905-857 is part of the Peak 150 series, providing precise speed control for single-valve or single-valve rack steam turbines. It includes a 5-digit LED speed display and supports remote speed control via a 4-20mA signal.
Specifications
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Power Supply: 24VDC.
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Display: 5-digit LED speed display.
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Regulatory Compliance: CSA Listed (Class I, Division 2, Groups A, B, C, & D).
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Motor Type: NEMA D.
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Maximum Power Consumption: 38W.
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Dimensions: 483mm x 310mm x 105mm.
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Operating Temperature: -25°C to 60°C.
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Storage Temperature: -40°C to 85°C.
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Shock Resistance: MIL-STD-810C Method 516.2.
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Vibration Resistance: MIL-STD-167 Type 1.
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Humidity Standard: MIL-STD-810D Method 507.2.
Features
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Precise Speed Control: Supports process-generated input for speed regulation.
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Front Panel Indicators: Six LED indicators for system status (CPU, MPUs, remote speed setting, shutdown, overspeed test).
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Failsafe Mechanisms: Magnetic pickup failsafe and slow roll-down override.
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Critical Speed Avoidance: Protects turbines from excessive vibration.
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Manual Control Options: Six keypad switches for speed adjustment, alarm reset, and emergency shutdown.
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