Clean signal separation helps control systems read analog values reliably, especially in compact cabinets with many field signals. TV125L provides potential isolation and conversion of unit signals in one universal device, reducing the need for several dedicated amplifier types.
Current and voltage inputs are configured by front DIP switches for 0..20 mA, 4..20 mA, 0..10 V or 2..10 V. The output can be set to 0..20 mA or 4..20 mA, while microprocessor-controlled measurement logging detects range undercutting and exceeding and indicates the state via a two-colour LED.
The three circuits, input, output and auxiliary voltage, are galvanically separated with reinforced isolation. A 40ms step response, standard error <0.2 % of final value and current input overload protection up to 32 V AC/DC support reliable operation in process and automation cabinets.
The front DIP switches set current input ranges of 0..20 mA or 4..20 mA and voltage input ranges of 0..10 V or 2..10 V.
The analog output is selectable as 0..20 mA or 4..20 mA and is provided at the active current output terminals.
Input signals are filtered, digitized with 14-bit resolution, checked against the measuring range and transmitted to the output stage.
If the measuring range is undercut or exceeded, the current output moves to a defined starting or final value.
The device uses plug-in screw terminals with wire guard for conductors from 0.2…2.5mm².
TV125LP supplies auxiliary voltage via Power Rail; TV125L uses terminal pins 11 and 12.
| Analog input type (voltage) |
0…10 V, 2…10V
|
|---|---|
| Analog input type (current) |
0…20 mA, 4…20 mA
|
| Operating relative humidity |
< 95 %RH
|
|---|---|
| Degree of protection front |
IP30
|
| Degree of protection terminals |
IP20
|
| Operating temperature |
-10...+60 °C
|
| Storage temperature |
-20...+60 °C
|
| Type of analog output |
4…20 mA, 0…20 mA
|
|---|---|
| Temperature coefficient |
0.01 %/K
|
| Accuracy |
0.2 %
|
| Burden (current output) |
< 150 Ω
|
| Dimensions |
12.5 mm 108 mm 114 mm
|
|---|---|
| Materials |
Polyamide (PA) 6.6, UL94V-0
|
| CE Conformity |
Yes
|
|---|
| Auxiliary voltage |
18…30 V DC
|
|---|---|
| Auxiliary voltage tolerance |
± 15%
|
| Power consumption |
< 0.5 VA
|
| Protection class |
II
|
| Degree of pollution |
2
|
| Rated voltage |
300 V AC/DC
|
| Test voltage |
3 kV AC
|
| Type of controls |
Dip-Switches
|
|---|
