Martens 放大器 TV125M / ST125M 隔离放大器 Martens of the GHM GROUP
TV125M / ST125M系列的隔离放大器适用于电位分离或转换标准信号。输入和输出的通用设计以及具有宽范围电源的内部电源使得仅具有一种类型的设备的广泛应用成为可能。
或者，电源可以通过安装导轨总线连接器进行。可插拔的端子排允许简单且省时的布线。
输入和输出信号的配置由前面板DIP开关以非常简单和快速的方式完成。
由于微处理器的设计，可以解释测量范围的下冲或超出，并通过前面板上的双色状态LED报告。如果出现错误，则将输出设置为定义的初始值或结束值。
测量范围的初始值和结束值可通过两个前置式修剪器进行调整。
ST125的设备版本还为外部2线，3线和4线传感器提供发射器电源。
Martens 放大器 TV125M / ST125M 隔离放大器 Martens of the GHM GROUP
● Standard inputs and outputs with adjustment function
● Safe electrical isolation between input / output / power supply by reinforced insulation in accordance to DIN EN 61010-1
● Functional safety to EN61508 SIL2
● Input intrinsically safe for the connection of sensors in the Ex-zone 0 and 20 possible
● Equipment installation in ex-zone 2
● Wide range power supply for AC and DC supply
● Power rail supply
● Output accuracy < 0.2% of full scale
● Operating display and status messages bi-color LED
● Configuration via front panel dip switches
● Coded Plug-in terminal blocks
● Small design, width 12.5 mm
● Mounting rail TS 35 and EN60715
Output
Voltage output : 0…10 V or 2…10 V switchable, Load > 500 Ω.
Current output : 0..20 mA or 4..20 mA switchable, Load < 600 Ω.
Step response T90 : 40 ms
Standard error : < 0,2 % of the end value
Temperature coefficient : < 0,01 % / K
Transmitter feed
Rated voltage at : > 15 V DC; terminals 51, 52
20 mA output current > 14 V DC; terminals 51, 41, Ri = 300 Ω
Housing
Material : Polyamid (PA) 6.6, UL94V-0
Weight : 91g
Protection class : Housing IP30, terminals IP20 BGV A3
Colour : light grey
Installation width : 12,5 mm
Dimension (HxT) : 108 x 114 mm
Assembly : Mounting rail assembly TS35 DIN EN 60715
Safety Integrity
Level : Sil 2 (parameters in accordance with EN 61508 and SN 29500) for input types 4..20 mA or 2..10 V and output types 4..20 mA or 2..10 V
Device type : B
HFT : 0
Error signalling : Output 0 V respective 0 mA
Reaction time : Normal function → error: 40 ms,
error → normal function: 1s (self resetting)
External Power
Auxiliary voltage
Wide-range power supply : 20..125 V DC / 85..253 V AC (47..63Hz)
Power-Rail-supply : 24 V DC +/- 15 %
Wide-range power supply : < 4 VA
Power-Rail-supply : < 2 W
Conformity : Directive 2014/35/EU
EMC : Directive 2014/30/EU
Standards : EN 61010-1: 2010, EN 61326-1: 2013, EN 61326-3-1: 2008,
Rated voltage : 253 V AC, 125 V DC according to EN 60079-11 300 V AC/DC according to DIN EN 61010-1 with overvoltage Category 2 and Degree of Contamination 2 between all circuits. Safe separation with amplified isolation
Test voltage : 3kV AC Input/Output/Power supply
Ambient conditions
Working temperature : -10..60°C
Storage temperature : -20..80°C
Relatvice air humidity : 10..90% (no condensation)
Input
Voltage input : 0..10V oder 2..10 V switchable, Ri = 30 kΩ. overload max. 26 V DC
Current input : 0..20 mA or 4..20 mA switchable; Ri = 51 Ω, 113mA
Measuring span : adjustable ± 2 %
Zero point : adjustable ± 2 %
Martens 放大器 TV125M / ST125M 隔离放大器 Martens of the GHM GROUP
