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DESCRIPTION
The Dual Setpoint Module is specifically designed to address the rigorous
demands of process control applications. The flexibility of either internal or
external alarm set point adjustments and DIN rail mounting, creates many
installation possibilities.
The setpoint module accepts either 0(4) to 20 mA or 0 to 10 VDC analog
input signals. The input signal level is selected by a series of DIP switches
found behind the module’s side door. DIP switch selectable variables include a
1% setpoint hysteresis and normally open/normally closed selectable alarm
relay action.
The two digit, thumbwheel switches located on the top of the module allow
for easy adjustment of the alarm setpoints. A corresponding yellow LED
indicates the status of the relay contact for each setpoint.
Each setpoint has a 0 to 4 second on-delay timer adjustment. This on-delay
adjustment is very useful in applications involving turbulence. The time delay
will eliminate relay chatter caused by any analog level process signal’s quick
fluctuation.
The setpoint module contains a ±2% zero and span adjustment for fine
calibration of the setpoint trip points. The zero and span adjustments are found
in the same area as the DIP switch adjustments.
The module’s environmental operating temperature range is -20°C to +65°C.
The modular high density packaging and mounting saves time and panel space.
The modules snap onto standard 35 mm flat DINrail.