New version of BT420+ : This unit is intended to simulate any 0-20 / 4-20mA sensor to control a current loop : It sets current in loop according to front multi-tour potentiometer and display it on a digital display (LCD).
BT4200 can power the current loop (active mode) or not (passive mode). In active mode, 16Vdc is supplied to loop.
Handy box with 2 wires (0.50m) and clamps
Dimensions: L: 157 mm, l: 84 mm, H: 30 mm
PP3 battery (9V) (supplied)
Easy to change battery (without tool)
DC current generator: from 0 to 28 mA
Reverse polarity protection
Easy current adjustment by a multi-tour potentiometer
Passive mode (regulation) : 28 mA (max) at 40 VDC (max)
Active mode (regulation + voltage supply) : 28 mA (max) at 16 VDC (powered by 9V battery supplied)
Current display: 4 digits ("12.00" for instance) / 0.05% precision
Min display: "0.00" mA
Max display: "19.99" mA (Regulation is still working until 28mA)
Battery lifetime : 550mAh (about 10 hours in full active usage / 78h in passive mode)
Reference : BT4200S
BT4200S unit with standard pluggable input from power supply
Power supply : 230 Vac - 50 Hz (12 Vdc / 300 mA output)
PP3 battery (9V): Backup supply when no power to input plug
1 year warranty.