Martens 放大器 TV125M / ST125M

Martens 放大器 TV125M / ST125M 隔離放大器 Martens of the GHM GROUP

TV125M / ST125M系列的隔離放大器適用于電位分離或轉換標準信號。輸入和輸出的通用設計以及具有寬范圍電源的內部電源使得僅具有一種類型的設備的廣泛應用成為可能。
或者，電源可以通過安裝導軌總線連接器進行?？刹灏蔚亩俗优旁试S簡單且省時的布線。
輸入和輸出信號的配置由前面板DIP開關以非常簡單和快速的方式完成。
由于微處理器的設計，可以解釋測量范圍的下沖或超出，并通過前面板上的雙色狀態LED報告。如果出現錯誤，則將輸出設置為定義的初始值或結束值。
測量范圍的初始值和結束值可通過兩個前置式修剪器進行調整。
ST125的設備版本還為外部2線，3線和4線傳感器提供發射器電源。

Martens 放大器 TV125M / ST125M 隔離放大器 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 ?.
Current output : 0..20 mA or 4..20 mA switchable, Load < 600 ?.
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 ?

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 k?. overload max. 26 V DC
Current input : 0..20 mA or 4..20 mA switchable; Ri = 51 ?, 113mA
Measuring span : adjustable ± 2 %
Zero point : adjustable ± 2 %

Martens 放大器 TV125M / ST125M 隔離放大器 Martens of the GHM GROUP