With this option, a Form 3 instrument can switch power for control action in all types of open-loop or ON-OFF closed-loop operations.  It may be used, for example, to actuate alarms or sorting devices, or to start up or shut down external processes.  Both relay types are controlled directly by the unit's LIMIT VIOLATION outputs.

With this option, a Form 3 instrument can switch power for control action in all types of open-loop or ON-OFF closed-loop operations.  It may be used, for example, to actuate alarms or sorting devices, or to start up or shut down external processes.  Both relay types are controlled directly by the unit's LIMIT VIOLATION outputs.

The 2000 Series "A" Option provides two Form C, 10-A contact relays (250 V-AC) on a plug-in board.  The "B" Option board provides two Form A opto-isolated AC/DC solid-state relays rated 120 mA at 125 VAC or 250 mA at 150 VDC.

Both options are available for all models, for applications that require alarms and/or process control.  The solid-state version is recommended for high duty cycles and low-level loads.

The 2000 Series "A" Option provides two Form C, 10-A contact relays (250 V-AC) on a plug-in board.  The "B" Option board provides two Form A opto-isolated AC/DC solid-state relays rated 120 mA at 125 VAC or 250 mA at 150 VDC.

Both options are available for all models, for applications that require alarms and/or process control.  The solid-state version is recommended for high duty cycles and low-level loads.