Cecomp Electronics, APD 1720 D, Dual Alarm Trip, 0-25 Hz to 0-20 kHz Factory Configured Frequency Input Range, 9-30 VDC, 10-32 VAC Power

Features with all optional accessories:

• Input sensitivity adjustment
• User adjustable setpoint(s)
• User adjustable deadband(s)
• 8 Amp SPDT contacts
• Input LoopTracker LED
• Alarm status LEDs
• Alarm options: LO, HI/HI, LO/LO, band alarm
• Optional reverse acting
• Optional latching alarms
• Push to test/reset
• Remote push to test/reset
• Full I/O/power isolation
• Removable plugs
• DIN rail mount without tools
• Factory Set AC Input Range
• Alarm Test, Optional Reset Button

Applications:

• Machinery Speed Alarm
• Redundant or Backup Alarm
• Conveyor or Machine Malfunction Alarm

The APD 1720 D accept a frequency input and provides a visual alarm indication and alarm relay contact outputs.

The input is factory configured to a specific frequency input range. The input can be of any type as long as it has a minimum of 100 mV amplitude change and a minimum 5 microsecond pulse width. Input sensitivity is potentiometer adjustable.

Front-accessible potentiometers are used to adjust alarm setpoint and deadband.

LoopTracker and Alarm Status LEDs

API exclusive features include a LoopTracker LED that varies in intensity with changes in the process input signal.

A two red/green bi-color alarm status LED visually indicate alarm status. These LEDs provide a quick visual picture of your process at all times.

Output Test / Unlatch

API's exclusive Output Test button can be used to verify the alarm and system operation and also provides the additional function of unlatching the alarm when the latching option has been ordered. This feature can be remotely operated.

The output test button greatly aids in saving time during initial startup and/or troubleshooting.