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MESSKO D1272AT User Manual

MESSKO D1272AT
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BA 2082/02/10 9
环境温度的影响: 环境温度每更改 1 °C,
显示范围
±
0.01 %
相对湿度的影响: 可忽略
电源电压的影响: 可忽略
电源电压:
电压范围: 100–240 V AC
±
10 %,50/60 Hz
功率消耗: 最大 5VA
传感器输入概述:
绝缘: 所有输入端电流隔离达 250 V AC
取样速率: 每秒 4 次
输入端滤波器: 2.0 秒
输入端分辨率: 14 位,至少比显示屏的分辨率高 4
实际值偏移: 可通过用户面板调节,
±
显示范围
传感器故障: 2 秒内发出错误消息,断开输出端
传感器输入Pt100:
测量电阻: Pt100 根据 IEC751,3 线技术
输入范围: -128.8 °C 至 +526.9 °C
电线电阻: 每根导线最大 50 欧
50 欧电线电阻
时影响小于显
示范围的 0.5 %: 电线电阻
补偿: 自动
测量电流: 约 150 μA
传感器输入4-20mA:
输入范围: -20 °C - +140 °C,0 °C -
+160 °C,其他要求的值
输入电阻: 4.7 欧
变送器电源(可选):
输入: 20-28 V DC(24 V DC 标称)
负载: 最小
910
(20 V DC
时为
22 mA)
双继电器(可选):
触点类型: 2 个常开开关,共用中心连接
触头负载: 在 240 VDC 时最大 2 A 电阻负载
开关功能: 数值不断增加,自动复位
滞后: 1 K
Inuence of
±
0.01 % of the display range per °C of
ambient temp.: the change of ambient temperature
Inuence of
relative humidity: negligible
Inuence of the
supply voltage: negligible
Supply voltage:
Voltage range: 100–240 V AC
±
10 %, 50/60 Hz
Power consumption: 5 VA max.
Sensor inputs general:
Insulation: galvanic isolation of all inputs up to
250 V AC
Sample rate: 4 samples per second
Input lter: 2.0 seconds
Input resolution: 14 bit, at least 4x better than the
resolution of the dislay
Actual value oset: adjustable via user panel,
±
display
range
Sensor malfunction: Error message within 2 seconds,
outputs are disconnected
Sensor input Pt100:
Measur. resistance: Pt100 acc. to IEC751, 3-wire technology
Input range: -128.8 °C to +526.9 °C
Wire resistance: 50 Ohm max. per conductor
Inuence of < 0.5 % of the display range at 50 Ohm
wire resistance: wire resistance
Compensation: automatic
Measurment current: approx. 150 μA
Sensor input 4-20 mA:
Input range: -20 °C - +140 °C, 0 °C - +160 °C,
other on request
Input resistance: 4.7 Ohm
Transmitter supply (optional):
Input: 20-28 V DC (24 V DC nominal)
Load: 910 Ohm min. (22 mA at 20 V DC)
Double relay (optional):
Contact type: 2x NO switch with common throw
Contact load: max. 2 A ohmic load at 240 V AC
Switching function: at increasing values, self-resetting
Hysteresis: 1 K

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MESSKO D1272AT Specifications

General IconGeneral
BrandMESSKO
ModelD1272AT
CategoryMeasuring Instruments
LanguageEnglish