Displays the current measured Process Value or parameter symbols during setup.
To achieve precise control without continuous system oscillation, the proportional, integral, and derivative values must be tuned to match the process loop dynamics. Auto-Tuning Sequence
100–240V AC (+10%/-15%), 50/60 Hz; or 24V DC/AC options. Power Consumption: 15 VA maximum. Input Sampling Rate: 100 milliseconds. 9240si loop controller user manual
Memory error. This may require a factory reset or indicates a hardware fault. 7. Maintenance and Safety
Connect the two common wires (usually white) and the single signal wire (usually red) to their respective terminals to allow line resistance compensation. Displays the current measured Process Value or parameter
The 9240SI is a specialized Ohmmeter/Capacitance Meter that measures two specific physical properties of a fire detection loop using a 500V DC test signal:
Selects the primary sensor. Options include J_tC , K_tC , Pt11 (RTD), or Lin (Linear DC). Power Consumption: 15 VA maximum
Set to rEV (Reverse) for heating applications (output decreases as temperature increases). Set to dir (Direct) for cooling applications.
Always connect a dedicated earth ground to Terminal 3 to minimize electrical noise interference. Input Sensor Connections
By referring to this user manual and appendices, users can maximize the capabilities of the 9240SI loop controller and achieve optimal performance in their industrial processes.
The 9240si combines advanced proportional-integral-derivative (PID) control algorithms with a rugged hardware interface. It is designed for panel mounting and features a high-visibility dual display for process variables and setpoints. Key Specifications