ES311A is an universal display with analog input (mA, V, PT100, TCs, Ohm) order codes that allows to view the istantaneous value (engineering units), retransmit it through an isolated analog output and, by the optional board, have N.2 relay alarms and Modbus interface. Furthermore the unit allows to integrate the input and totalize it into the internal memory. It is available with 4,6 or 8 digits and an 7+4 digits (double line).

The ES311AK-4-L can read voltage (0-10 V) or current (0-20 mA) signals with or without loop powered measure. All parameters and display configuration can be set by menu. The input will be shown and scaled on 4 digit display according to the setup. S311AK-4-L has an excellent resolution, precision and temperature stability. The compact dimensions allow to improve the assembly in electrical switchboard.

ES311AK is a 4-digit indicator with high-precision analog input: 0.05% maximum error of measurement, 16-bit resolution, thermal stability 0.005% / ° K. It acquires voltage signals (0-10 V) and current (0-20 mA) loop measurement can power (16 V, 25 mA) and is only 40 mm deep. Setting is done via the front menu keys. The version in IP66, electrically isolated, with a transparent front door opening provides high levels of functionality and safety in wet environments, dust, aggressive and extreme temperatures. S311AK-IP66 reduced wiring and installation. It can be integrated into an existing cabinet for the acquisition of an analogue measurement and display in engineering units.

ES311D is an indicator totalizer that accetpts universal opto isolated digital input. Admitted signal types are reed, npn (2 wires or 24 V), pnp (24 V), NAMUR, photoelectric, Hall, 24 V input, TTL, variable reluctance. Digital input signal frequency measurement starts from 0.00015 Hz to 10 kHz. ES311D supports increment or decrement totalizing of the digital input signal. Also it's possibile viewing the frequency measurement and/or totalized value. Programmable retransmission of the input value frequency is possibile by the isolated analog output (voltage or active/passive current). Retransmission of the totalized value by the isolated digital output (Open Collector). Totalizer value is saved on non-volatile memory.

Optional board with RS485 Modbus interface, 2-CH alarm relay, 1-CH digital input. Available for ES311A and ES311D digital displays.

ES312A is a Modbus digital indicator with universal input in voltage, current, thermocouples,, thermoresistors (2, 3 or 4 wires measurements), potentiometer. The instrument allows programmable retransmission of the measured instantaneous value by the isolated analog output (voltage or active/passive current). S312A is provided of programmable filter at 20 levels to stabilise reading. Four alarms are activable on the instantaneous input value (alarm type: maximum, minimum, automatically resettable or not). Alarms status is visible through four leds on the frontal panel.

ES315, the new indicator of the compact S-Series, is a loop powered, high-performance digital display. The maximum error is only 0.005% with up to 16 bits. ES315 stands a measurement loop of the active device (Vmax = 30 V), which must be greater than the maximum voltage across the voltage drop (7V). Programming is possible via the front menu keys. Access can be controlled via passwords. S315 acquires signals 4-20 mA current. All parameters of the con-figuration and display can be set to any menu with access protected by password.

ES315, the new indicator of the compact S-Series, is a loop powered, high-performance measurement. The version in IP66, electrically isolated, with a transparent front door opening provides high levels of functionality and safety in wet, dusty, aggressive and extreme temperatures. S315/IP66 reduce wiring and ensures easy installation in any position with external screws, cable included, no need to be integrated into a cabinet. It can be integrated into an existing facility for the acquisition of an analogue measurement and display in engineering units.