Analog DC to Frequency or Pulse Converters and Transmitters

• 6 Year Warranty on API Modules
• LoopTracker ^® I/O LEDs
• Hot-Swappable Plug-In Design
• Zero and Span Output Calibration
• Push to Test Output
• Full I/O/Power Isolation

Links
Product brochure
Options & accessories
Regulatory compliance
Click on PDF links below
for product information

Reference Info
Ground loops
RFI/EMI
LoopTracker and Output Test
Sink vs source
Applications
Remote monitoring of motor speed
HVAC variable air volume control
Hall-effect flow sensor
Auto-ranging flow meter
Control and record water flow
Isolate & convert flow meter signal
Isolate & convert gas flow meter signal

How to select your product

• Open pdf datasheet for your model
• Select model, range, units, options, accessories
• Contact us if you need assistance

Need a quote?

• Contact us at , or
• Get a quote via "Chat with us" below, or
• Call 800-942-0315 and ask for Sales

Ready to order?

• Send your order to
• If you don't have open terms with us,
  we'll call you for your credit card info

Other ways to order

• Click here to set up an account
• Click here to find your authorized dealer or
  if you are outside the USA
• Call us to find your local authorized distributor

DC to Frequency Isolated Signal Conditioners

Field Selectable Minuteman Setup

API 7500 G  from $439
API 7500 G SS     from $439

Open Datasheet
Download Datasheet

24 field configurable inputs
0-50 mVDC to ±10 VDC
0-1 mADC to 0-20 mADC
API 7500 G DC to Frequency Transmitters
30 field configurable outputs
Low range: 0-100 Hz to 0-1500 Hz
High range: 0-2 kHz to 0-30 kHz
MOSFET output std., TTL optional
API 7500 G SS DC to Low Frequency Transmitters
30 field configurable outputs
Low range: 0-1 Hz to 0-15 Hz
High range: 20 Hz to 300 Hz
MOSFET output std., TTL optional

• Minuteman one-minute setup
• Hot-swappable plug-in design
• I/O LoopTracker LEDs
• Output test button
• Full I/O/power isolation
• Uses API-008 8-pin socket
• 115 VAC powered
• A230 option for 230 VAC
• P option: 85-265 VAC, 60-300 VDC power (+$60)
• D option: 9-30 VDC power (+$60)

DC to Frequency Isolated Signal Conditioners

Field Selectable Minuteman Setup

APD 7500  from $429
APD 7500 SS  from $429

Open Datasheet
Download Datasheet

24 field configurable inputs
0-50 mVDC to ±10 VDC
0-1 mADC to 0-20 mADC
APD 7500 DC to Frequency Transmitters
30 field selectable outputs
Low range: 0-100 Hz to 0-1500 Hz
High range: 0-2 kHz to 0-30 kHz
MOSFET output std., TTL optional
Can be wired for MOSFET or TTL output
50% duty cycle square wave output
APD 7500 SS DC to Low Frequency Transmitters
30 field selectable outputs
Low range: 0-1 Hz to 0-15 Hz
High range: 20 Hz to 300 Hz
Can be wired for MOSFET or TTL output
50% duty cycle square wave output

• Setup via rotary switches & easy-to-use tables
• 1200 V full isolation input/output/power
• Adjustable low frequency cutout
• Input and output LoopTracker® LEDs
• Output test button with remote test capbility
• Universal power 85-265 VAC, 60-300 VDC
• D option for 9-30 VDC, 10-32 VAC power