VTI Instruments - EX1200-1538 Multifunction I/O Card with Enhanced Frequency Counter

VTI Instruments - EX1200-1538 Multifunction I/O Card with Enhanced Frequency Counter
  • 8 frequency counter channels, 16 isolated digital I/O channels, 2 isolated DAC channels in a single card
  • Single frequency measurement range that works from 0.05 Hz to 1 MHz
  • Very stable TCXO base clock, 50 MHz ±1 ppm
  • 195 kΩ Input impedance with selectable coupling (AC/DC)
  • Wide differential input voltage range (±48 V) with up to 250 V working common mode voltage
  • Programmable threshold and hysteresis levels with 1 mV resolution
  • Support for quadrature encoder
  • Isolated DIO channels with up to 60 V compliance
  • Isolated and independent 16-bit DAC channels, configurable for voltage or current output


The EX1200-1538 is a high-performance multifunction card that provides 8-channels of independent 32-bit counters, 16 channels of isolated digital I/O, and 2 channels of isolated analog output (DAC) on a single card. The wide range of measurement functions make this card suitable for both electronic functional test, as well as precision data acquisition applications. Combining the EX1200-1538 with the DMM and switch capabilities allows for a complete measurement, control, and distribution system in a small 1U rack space.

Counter channels accept both analog and digital inputs ranging from ±48 V of true differential voltages which makes it suitable to use with almost any real world signal without the need for external signal conditioning. Programmable hysteresis and threshold levels over the entire input voltage range can help to extract the fundamental frequency from the noisiest analog input signals. Electronic counter channels can directly measure the RPM from tooth wheel and other types of sensors.

The EX1200-1538 isolated digital I/O channels can be configured as input or output on a per channel basis. Each channel is isolated from each other and can accept voltages from 2.5 V to 60 V. The output channels use solid-state switches that work in any polarity.

The isolated analog output channels are independently configurable as either constant voltage or current mode. The output range is fixed (±10 V in voltage mode and ±20 mA in current mode) and the output levels are programmable with 16-bit resolution. Both channels are isolated from each other and fully protected, providing the capability to be connected in series or parallel for an even wider output range.

More Product Information

VTI Instruments - EX1200 Series Counter/Timer (EX1200-1538)
The EX1200-1538 is a Multifunction I/O Card with Enhanced Electronic Counter. It has 8 frequency counter channels, 16 isolated digital I/O channels, 2 isolated DAC channels in a single card.

VTI Instruments - EX1200 Series Sensor Simulator (EX1200-7008)
The EX1200-7008 is a Multichannel Glitch-free Universal RTD Simulator with eight channels and universal, 2-/4-wire RTD simulator

VTI Instruments - EX1200 Series Digital I/O (EX1200-7500)
  • The EX1200-7500 is a 64 -Channel, 2 MHz, Digital I/O with Eight ports of 8 I/O bits each

VTI Instruments - EX1200 Series Comparator (EX1200-7416)
The EX1200-7416 is a 16 Channel Comparator/Event Detector with up to 96 differential channels per full rack mainframe

VTI Instruments - EX1200 Series DMM
The EX1200-2165 and EX1200-2365 are Full Featured, Tightly Integrated 6.5 Digit DMM for 1U or 3U EX1200 Mainframes

VTI Instruments - EX1200 Series LXI Mainframes
The LXI mainframes family includes 2-slot, half-rack LXI switching and data acquisition mainframes (EX1202/EX1262), 16-slot, 3U LXI switching and data acquisition mainframes (EX1208A, pictured), and 6-slot, 1U LXI switching and data acquisition mainframes (EX1206A)

VTI Instruments - EX1200 Series Signal Generator
Signal Generations, Arbitrary Waveform generation and Digital to Analog output modules for providing signal simulation capability

VTI Instruments - EX1200 Series Multiplexer Modules
Multiplexer switch modules up to 1000VDC in a 1, 2 or 4 wire configurations

VTI Instruments - EX1200-7500 64 -Channel, 2 MHz, Digital I/O
  • Eight ports of 8 I/O bits each
  • High current capability for control of external relays, 300 mA sink
  • Simulate and receive digital data at up to 2 MHz sample rates
  • Selectable output voltages range from 3.3 V to 60 V
  • Setup outputs and scan inputs as part of EX1200 measurement sequencing engine

VTI Instruments

AMETEK's VTI Instruments products and systems are used to monitor and record data that characterizes the physical integrity and performance of aircraft, engines, and other large structures, as well as automate the functional testing of complex electronic systems. The VTI Instruments brand is recognized as an industry leader with a reputation of providing reliable data, first time, every time. A sustained focus on innovation and technology enables customers to optimize their capital investment through product longevity, while ensuring unmatched measurement integrity and data reliability.

VTI has customers in over 30 different countries and in a wide variety of industries including aerospace, defense, power generation, automotive and consumer electronics. The Company’s products are used in applications ranging from wing test on Boeing 787 to production test for cell phones.

Contact Details

AMETEK Programmable Power, Inc. − San Diego

9250 Brown Deer Road

San Diego, CA 92121

Phone: 858-450-0085

Fax: 858-458-0267

Contact form or Email: sales.ppd@ametek.com for general inquiries

Line Cards: