Four Digit Display

T/C, RTD, mV, mA or V Input

NEMA 4X, IP65

Up to 2 Independent Alarms

Logic Input for Alarm Reset

Alarm Standby on Start-up

Optional Digital Communications

Optional 24 Vac/Vdc Supply

The 7SI is a compact 1/16 DIN digital indicator/ alarm unit with a 4-digit process variable display designed for equipment manufacturers who need these functions in a small package. Inputs are factory calibrated and selectable from the front panel. Fifteen thermocouple types, 3-wire Platinum RTD's and several ranges of linear mV, mA and voltage inputs are available. The 7SI has one standard alarm relay output and an optional second alarm relay output. Relays can be programmed to energize or deenergize in an alarm condition. Both alarms can be configured as process high or low at independent thresholds

within the readout range and with an adjustable hysteresis of 0.1 to 10% of span. Alarms can be acknowledged automatically or manually via a front panel key, optional logic input or RS-485 communications link. LED beacons for each alarm flash to annunciate new alarms. The alarm LED's stay steady ON for alarms that are present but acknowledged, and are OFF when no alarm is present. Optional RS-485 digital communications with Modbus® or JBUS is available for computer supervision. The 7SI is NEMA 4X rated for operation in severe environments.