NOKEVAL数显表201系列201-4/20技术参数及介绍
NOKEVAL数显表201系列201-4/20技术参数及介绍
NOKEVAL创立于1980年，致力于无线技术已有四十多年。NOKEVAL开发和制造物联网测量设备和测量解决方案以及满足各行业需求的云服务。
NOKEVAL数显表201系列技术参数
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Technical specifications:
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Input
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4..20 mA linear or square root
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Display scaling
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-999....+9999
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Desimal point
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Freely selectable
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Accuracy
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0.05% of span
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Input resistance
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240 ohm (voltage drop = 5.0 V)
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Alarm relays (optio)
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2 solid state relays (SSR), max. 250 VAC, 150 mA
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Alarm mode
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High and low level
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Hysteresis
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Selectable 0..100 %
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Display
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4-digit red LED, 14.5 mm, adjustable brightness
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Front plate protection
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IP65 with gasket, without gasket IP54
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Push buttons
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Switches under front panel
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Ambient temperature
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0...+60 °C
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Terminals
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Detachable 2,5 mm²
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Weight
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200 g
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NOKEVAL数显表201系列介绍
201 是一种自供电明亮的红色 LED 显示器，无需单独的辅助电压即可运行。
输入信号：4-20 mA，运行能量取自电流信号。
• 对于过程输入 4-20 mA
• 无需外接电源
• 环路电阻仅为 240 欧姆
• 基于 4 位处理器的显示器
• 前面板缩放
• 2 个可设置的闹钟
• 警报和配置密码
• 前面板防护等级 IP 65
201 is a self-powered bright, red LED display that operates without a separate auxiliary voltage.
Input signal: 4-20 mA, operating energy is taken from the current signal.
• For process input 4-20 mA
• Without external power supply
• Loop resistance 240 ohm only
• 4-digit processor based display
• Scaling on front panel
• 2 settable alarms
• Pass words for alarms and configuration
• Front panel rating IP 65
NOKEVAL数显表201系列其他常用型号：
NOKEVAL 201-4/20
NOKEVAL 202-4/20