830 R Process Indicator

In top-mount field case, character height 23 mm

The Model 830 loop-powered digital indicators are universally applicable.


The range (either 0 - 20 mA or 4 - 20 mA) is simply selected via terminals. Display starts working at an operating current of only 0.3 mA.


The low voltage drop of 0.5 V allows application in current loops with low load voltage.



Bargraph for quick range overview
The digital indicators provide a bargraph in addition to the digital display. This gives you all information on your process variable at a single glance.


Versatile setting capabilities
Zero, span, and min/max outputs can be adjusted as desired, enabling direct readout of measured values such as temperature, power, displacement, pH value etc. The indicator comes with a symbol set for standard engineering units. The symbols can easily be replaced. Thanks to microprocessor technology, you do not require a high-precision external reference current for parameter setting. Even during operation, the settings can be changed without problems.


Loop-powered.


Your advantage.
The digital indicators are simply inserted into the current loop like passive analog indicators.
Since power supplies and their wiring are not required, costs could decisively be reduced, allowing for displays which have been too expensive before.
In addition, the reliability has considerably been improved since a power failure in the control room does not interrupt the data flow. And, in contrast to conventional digital indicators, there is no coupling between measuring loop and power supply.


Design
The product line includes indicators in modular cases, as well as large and small cases for installation in equipment and control panels.


Floating min/max outputs on request
The two optionally available min/max outputs can be set as normally closed or normally open contacts. Limit values, hysteresis, and switch-on delay can be set as desired.


EMC to NAMUR*
EMC design ensures reliable measurements even under unfavorable ambient conditions.


HART communication
The indicators transmit HART signals disturbance-free. Measured value display is not affected.

* German committee for measurement and control standards in the chemical industry