Absolute Process Instruments APD 1720 _ Frequency input dual alarm

Cecomp Electronics, APD 1720, Dual Alarm Trip, 0-25 Hz to 0-20 kHz Factory Configured Frequency Input Range, 85-265 VAC, 60-300 VDC 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 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.

Specifications Table:

Input	0-25 Hz to 0-20 kHz
Output	Two 8 Amp SPDT Relays
Frequency Input Range	Factory configured, please specify input type and range. Frequency: 0-25 Hz to 0-20 kHz Sine wave, sawtooth, or square wave with min. 5 µsec pulse
Input Impedance	Maximum sensitivity: 10 kW nominal Minimum sensitivity: 100 kW nominal
Input Sensitivity/Hysteresis	Maximum sensitivity: ±25 mV typical, minimum sensitivity: ±2.5 V typical
Input Amplitude Range	100 mV to 150 VRMS
Input Power Supply	15 VDC ±10%, regulated, 25 mADC, max. ripple, <10 mVRMS
Input Protection	Normal mode: 200% of input rating, Common mode: 600 VDC or 600 VACp input to ground
Standard Alarm Configuration	2 setpoints, 2 SPDT relays. HI/LO alarms, non-latching, normal acting
Setpoint	12 turn potentiometer adjustable from 0 to 100% of span
Deadband	12 turn potentiometer adjustable from 1 to 100% of span
Ambient Temperature Range and Stability	10°C to +60°C operating ambient
Connectors	Four 4-terminal removable connectors, 14 AWG max wire size
Power	85-265 VAC, 50/60 Hz or 60-300 VDC, 2 W maximum

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