Frequency or Pulse Input Alarms

lifetime warranty
  • Lifetime Warranty on API Modules
  • LoopTracker® Input LED
  • Alarm Status LEDs
  • Hot-Swappable Plug-In Design
  • User Adjustable Setpoint(s)
  • Push to Test/Reset Alarms
  • Full I/O/Power Isolation
Click on model numbers below
for data sheets
Literature and Links

API product brochure

Options & accessories

Cross reference

See all frequency transmitters

UL Approvals

API modules USA
API modules Canada

APD modules USA
APD modules Canada

Reference Info

Alarm terminology
Deadband
Relay protection & EMI suppression
RFI/EMI
How to Order
  1. Select a model
  2. See data sheet for ordering info and power options
  3. Request an API price list via chat
  4. 2-5 day typical lead time (USA customers)
  5. To place your order
Model Input/Output Features Product
Frequency Input Alarm Trips
Plug In Style

API 1700 G
Specify input range
Factory configured
0-10 Hz to 0-20 kHz
100 mV to 150 VRMS amplitude change
Input must be self-powered or externally powered

API 1700 G Alarm Trip
One DPDT contact set
Standard: HI alarm, normal acting,
adj. deadband, non-latching
See data sheet for alarm options

  • User adjustable setpoint(s)
  • 8 Amp contacts
  • Hot-swappable plug-in design
  • Input LoopTracker LED
  • Alarm status LEDs
  • Optional low alarm
  • Optional reverse acting
  • Optional latching alarm
  • Output test button
  • Uses API-011 11-pin socket
  • 115 VAC powered
  • A230 option for 230 VAC
  • P option for 85-265 VAC, 60-300 VDC power
  • D option for 9-30 VDC power


Api 1700G
API 1700 G
Frequency Input Alarm Trips
DIN Style

APD 1700
APD 1720

Specify input range
Factory configured
0-25 Hz to 0-20 kHz
100 mV to 150 V RMS
Any waveform with minimum 100 mV amplitude change
Use with 2 wire, 3 wire NPN or PNP sensors

APD 1700 Single Alarm Trip
Dual SPDT contact sets
Standard: HI alarm, non-latching, normal acting
See data sheet for alarm options

APD 1720 Dual Alarm Trip
2 independent SPDT contact sets
Standard: HI/LO alarms, non-latching, normal acting
See data sheet for alarm options

  • Input sensitivity adjustment
  • 15 VDC sensor power available
  • 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
  • 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
  • Universal power 85-265 VAC, 60-300 VDC
  • D option for 9-30 VDC, 10-32 VAC power

APD 1700 UL approved
APD 1700, APD 1720
RheinTacho Speed Monitors
DIN Style
Field Programmable, Isolated

CR
CRR
CRA
CRRA


Instructions
Programmable Input
Min: 0-0.01 Hz
Max: 0-20,000 Hz

Optional sensors:
Hall
Differential Hall
Magnetoresistive

Output
CR: 1 relay
CRR: 2 relays
CRA: 1 relay & analog output
CRRA 2 relays & analog output

Relay: 5A@250VAC/2A@42VDC resistive
Analog output: 0-20mA or 4-20mA




  • Field programmable
  • DIN-rail mounted
  • Programmable measuring units
  • Programmable relays
  • Programmable delay and reset
  • Full I/O/power isolation
  • 18-36 VDC powered


RheinTacho CRR CE
CR Series
Sensors sold separately