Loop powered bright red LED-display 201 needs no external power supply. Current signal 4-20 mA provides the necessary energy. Therefore, it is possible to install the meter in places having no auxiliary power available. You can now replace the autopowered LCD-displays, having very poor visibility, by bright red LED-displays. There are two models: basic model 201 without alarms and model 202 with two alarm contacts.
Display scaling and configuration by front panel buttons. Unit has digital filter for stabilizing the 4-digit display. In model 202 You may configure two optional alarms, high and low. Password is settable for entering configuration and alarm stages.