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Product short description:
  • Multi-range 0Hz to 100KHz frequency input
  • Multi-range 0Hz to 3KHz PWM input
  • 4-20mA output (sink/source)
  • 12-32V DC power

The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle. Power is received from the output loop current or a DC supply when using a three-wire connection.

Click here to watch a short AcroMaggie video highlighting the TT230 Series.

 

 

TT239: Frequency / Pulse / PWM Input, 12-32V DC Loop Power, 2-Wire Transmitter Description

The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle.

Power is received from the output loop current or a DC supply when using a three-wire connection.

High-voltage isolation separates the input from the output circuit. Isolation protects from surges, reduces noise, and eliminates ground loop errors.

Setup and calibration are fast and easy with a convenient USB connection to your PC and Acromag’s Windows configuration software.

Advanced signal processing capabilities, variable range input, and convenient USB programming make this instrument a very versatile frequency measurement device.

These transmitters can withstand harsh industrial environments and operate reliably across a wide temperature range with very low drift. They feature RFI, EMI, ESD, EFT, and surge protection plus low radiated emissions.

Learn more about the TT Series of Isolated Transmitters and view all models >

TT239: Frequency / Pulse / PWM Input, 12-32V DC Loop Power, 2-Wire Transmitter Performance Specifications

IMPORTANT: To prevent damage or errors from grounded PCs and surges, Acromag strongly recommends the use of their USB-ISOLATOR when configuring a TT230 Series transmitter.

USB Interface

USB Connector: USB Mini-B type socket, 5-pin.

USB Data Rate: 12Mbps. USB v1.1 and 2.0 compatible.

USB Transient Protection: Transient voltage suppression on power and data lines.

USB Cable Length: 5.0 meters maximum.

Driver: Not required. Uses built-in Human Interface Device (HID) USB drivers of the Windows operating system.

Input

Default Configuration/Calibration
±5.0V Square Wave
Input Threshold = Bipolar 0.0V
Hysteresis ±25mV
Measurement = Frequency
Pull Up/Down = Disabled
Excitation = Enabled
0Hz Cutoff = 0.5Hz
Sample Average = 1
Output Range = 4-20mA
I/O Scaling = 0Hz to 10KHz, Normal Acting
Output Update = 100ms

Frequency Input: Configurable for any range from 0Hz to 100KHz. Accepts unipolar (non-zero crossing) or bipolar (zero crossing) input signals. 0.5Hz minimum span. 10μs minimum pulse width.

Input Ranges
Frequency Input          Output Update      Input Resolution     Typical Accuracy
0 to 100Hz                                 Any rate               1 part in 60000                  ±0.05Hz
0 to 1KHz                                   Any rate               1 part in 6000                     ±0.5Hz
0 to 5KHz                                   Any rate               1 part in 1200                     ±1Hz
0 to 10KHz                                   10ms                  1 part in 60000                   ±200Hz
0 to 10KHz                                 100ms                  1 part in 600000                ±20Hz
0 to 10KHz                               1000ms                  1 part in 6000000             ±2Hz
0 to 100KHz                                 10ms                  1 part in 60000                   ±400Hz
0 to 100KHz                               100ms                  1 part in 600000                ±40Hz
0 to 100KHz                             1000ms                 1 part in 6000000              ±4Hz

PWM Input                            Cycle                            Input                             Typical
Carrier Freq                         Range                        Resolution                   Accuracy
0 to 100Hz                                1 to 99%               1 part in 60000                  ±0.02%
0 to 1KHz                                10 to 90%              1 part in 6000                     ±0.2%
0 to 3KHz                               20 to 80%               1 part in 1200                     ±2.0%

Input Scaling Adjust
Zero: Adjustable over 0 to 99% of full-scale input.
Full scale: Adjustable over 0.5Hz to 100KHz.
Cut-off frequency: Adjustable over 0.01Hz to 100KHz.

Input Pull-up/Pull-down (internal, software-select)
Configurable 12.4KΩ pull-up to +4V and 1KΩ pulldown to –FRTN, or disabled. 15V DC maximum input. 4V pull-up with ±28mV hysteresis or 3V when ±84mV.

Unipolar Signal Configuration
Amplitude: 0 to 3V DC min., 0 to 170V DC max.
Thresholds: Configurable for 1.6V DC (±25mV hysteresis) or 5V DC (±83mV hysteresis), typical.

Bipolar Signal Configuration
Amplitude: ±50 to ±200mV min. (depending on range and hysteresis), 120Vrms max. (±170V DC).
Thresholds: 0mV nominal (±25 or ±83mV hysteresis).

Output

Output Range: 4 to 20mA DC, wired as sink or source.
Under-range capability 3.6mA. Over-range capability 24mA.

Output Compliance
Rload = (Vsupply – 12V) / 0.020A.
Rload = 0 to 600 ohms @ 24V DC.

Output DAC Resolution: 16-bit D/A converter.

Output Update: Software configurable from 10ms to 5000ms. Determines the rate at which the output signal is updated, unless optionally overridden.

Output Settling Time: 1ms, 0% to 98% for a step-change in input, typical.

Output Accuracy: Better than ±0.05% of span, typical (±0.1% max) for for nominal input spans. Includes the effects of repeatability, terminal point conformity, and linearization, but does not include sensor error.

Ambient Temperature Effect: Better than ±0.0020% per °C of input span or ±20ppm/°C, typical. Includes the combined effects of zero and span drift over temperature.

Environmental

Operating temperature: -40 to 80°C (-40° to 176°F).

Storage temperature: -40 to 85°C (-40 to 185°F).

Relative humidity: 5 to 95% non-condensing.

Power requirement: 12-32V DC SELV (Safety Extra Low Voltage), 24mA maximum.

Isolation: 1500V AC peak. 250V AC (354V DC) continuous isolation between input and output circuits.

Shock and Vibration Immunity
Vibration: 4g, per IEC 60068-2-64.
Shock: 25g, per IEC 60068-2-27.

Electromagnetic Compatibility (EMC) Compliance
Radiated Emissions: BS EN 61000-6-4, CISPR 16.
RFI: BS EN 61000-6-2, IEC 61000-4-3.
Conducted RFI: BS EN 61000-6-2, IEC 61000-4-6.
ESD: BS EN 61000-6-2, IEC 61000-4-2.
EFT: BS EN 61000-6-2, IEC 61000-4-4.
Surge Immunity: BS EN 61000-6-2, IEC 61000-4-5.

Approvals: CE compliant. Designed for UL/cUL Class I Division 2 Groups ABCD, ATEX / IECEx Zone 2.

Physical

General: General-purpose enclosure designed for mounting on 35mm “T-type” DIN rail.

Case Material: Self-extinguishing polyamide, UL94 V-0 rated, color light gray. General-purpose NEMA Type 1 enclosure.

I/O Connectors: Removable plug-in terminal blocks rated for 12A/250V; AWG #26-12, stranded or solid copper wire.

Dimensions: 12.5 x 114.5 x 99.0 mm (0.5 x 4.51 x 3.90 inches).

Shipping Weight: 0.22 kg (0.5 pounds) packed.

Learn more about the TT Series of Isolated Transmitters and view all models >

  • Easy setup and digital calibration via USB with Windows configuration software
  • Measures frequency or duty cycle and interfaces many input types up to 100KHz
  • Accepts input amplitudes up to 120Vrms (±170V DC, unipolar or bipolar)
  • Adjustable 0Hz cut-off, sample averaging, debounce, and output update time
  • Software configurable pull-up/down resistors ( 4V DC input pull-up for sensors/tranducers)
  • 1500V isolation between input/output circuits
  • Space-saving 12.5mm (0.5 inch) unit with pluggable terminals for convenient wiring
  • Fast response time and high accuracy
  • Supports normal or reverse-acting output
  • Supports sink or source output wiring
  • NAMUR-compliant output loop current
  • Shock (25g) and vibration (4g) resistant
  • Wide ambient operation (-40 to 80°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals

 

 

Specifications

Manuals

TT239 User Manual (Log in to download the file)

TT230 Series Windows Configuration Software (Log in to download the file)
Wireless Config Tool: The Agility™ Mobile App (Log in to download the file)
  • Compare

    TT230-Config/Cal: Calibration Service

    • Factory custom configuration/calibration service.
    • Specify input type, input/output zero and full-scale values, filtering, and sensor fault settings on order.
    Select options
  • Compare

    TTC-SIP: Software

    • Software Interface Package for Acromag DT, ST, TT Series Transmitters and SP, uBSP Series Signal Splitters.
    • Includes configuration sofware CD-ROM (5040-xxx), isolator (USB-ISOLATOR) and two USB cable (4001-112, 4001-113) (Recommend one kit per customer.)
    • Easy setup and digital calibration via USB with Windows configuration software.
    • Download the configuration software only - from the Software Tab
    Select options

Additional information

Weight 8 oz
Dimensions 4.51 × 0.5 × 3.9 in
Part Number

TT239-0600: Two-wire, isolated freq

Configuration

Agility Mobile App, Factory Calibration, USB Configuration, Windows Software Configuration

Product Series

TT230 Series

Power

Loop Power

  • Description

    TT239: Frequency / Pulse / PWM Input, 12-32V DC Loop Power, 2-Wire Transmitter Description

    The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle.

    Power is received from the output loop current or a DC supply when using a three-wire connection.

    High-voltage isolation separates the input from the output circuit. Isolation protects from surges, reduces noise, and eliminates ground loop errors.

    Setup and calibration are fast and easy with a convenient USB connection to your PC and Acromag’s Windows configuration software.

    Advanced signal processing capabilities, variable range input, and convenient USB programming make this instrument a very versatile frequency measurement device.

    These transmitters can withstand harsh industrial environments and operate reliably across a wide temperature range with very low drift. They feature RFI, EMI, ESD, EFT, and surge protection plus low radiated emissions.

    Learn more about the TT Series of Isolated Transmitters and view all models >

    TT239: Frequency / Pulse / PWM Input, 12-32V DC Loop Power, 2-Wire Transmitter Performance Specifications

    IMPORTANT: To prevent damage or errors from grounded PCs and surges, Acromag strongly recommends the use of their USB-ISOLATOR when configuring a TT230 Series transmitter.

    USB Interface

    USB Connector: USB Mini-B type socket, 5-pin.

    USB Data Rate: 12Mbps. USB v1.1 and 2.0 compatible.

    USB Transient Protection: Transient voltage suppression on power and data lines.

    USB Cable Length: 5.0 meters maximum.

    Driver: Not required. Uses built-in Human Interface Device (HID) USB drivers of the Windows operating system.

    Input

    Default Configuration/Calibration
    ±5.0V Square Wave
    Input Threshold = Bipolar 0.0V
    Hysteresis ±25mV
    Measurement = Frequency
    Pull Up/Down = Disabled
    Excitation = Enabled
    0Hz Cutoff = 0.5Hz
    Sample Average = 1
    Output Range = 4-20mA
    I/O Scaling = 0Hz to 10KHz, Normal Acting
    Output Update = 100ms

    Frequency Input: Configurable for any range from 0Hz to 100KHz. Accepts unipolar (non-zero crossing) or bipolar (zero crossing) input signals. 0.5Hz minimum span. 10μs minimum pulse width.

    Input Ranges
    Frequency Input          Output Update      Input Resolution     Typical Accuracy
    0 to 100Hz                                 Any rate               1 part in 60000                  ±0.05Hz
    0 to 1KHz                                   Any rate               1 part in 6000                     ±0.5Hz
    0 to 5KHz                                   Any rate               1 part in 1200                     ±1Hz
    0 to 10KHz                                   10ms                  1 part in 60000                   ±200Hz
    0 to 10KHz                                 100ms                  1 part in 600000                ±20Hz
    0 to 10KHz                               1000ms                  1 part in 6000000             ±2Hz
    0 to 100KHz                                 10ms                  1 part in 60000                   ±400Hz
    0 to 100KHz                               100ms                  1 part in 600000                ±40Hz
    0 to 100KHz                             1000ms                 1 part in 6000000              ±4Hz

    PWM Input                            Cycle                            Input                             Typical
    Carrier Freq                         Range                        Resolution                   Accuracy
    0 to 100Hz                                1 to 99%               1 part in 60000                  ±0.02%
    0 to 1KHz                                10 to 90%              1 part in 6000                     ±0.2%
    0 to 3KHz                               20 to 80%               1 part in 1200                     ±2.0%

    Input Scaling Adjust
    Zero: Adjustable over 0 to 99% of full-scale input.
    Full scale: Adjustable over 0.5Hz to 100KHz.
    Cut-off frequency: Adjustable over 0.01Hz to 100KHz.

    Input Pull-up/Pull-down (internal, software-select)
    Configurable 12.4KΩ pull-up to +4V and 1KΩ pulldown to –FRTN, or disabled. 15V DC maximum input. 4V pull-up with ±28mV hysteresis or 3V when ±84mV.

    Unipolar Signal Configuration
    Amplitude: 0 to 3V DC min., 0 to 170V DC max.
    Thresholds: Configurable for 1.6V DC (±25mV hysteresis) or 5V DC (±83mV hysteresis), typical.

    Bipolar Signal Configuration
    Amplitude: ±50 to ±200mV min. (depending on range and hysteresis), 120Vrms max. (±170V DC).
    Thresholds: 0mV nominal (±25 or ±83mV hysteresis).

    Output

    Output Range: 4 to 20mA DC, wired as sink or source.
    Under-range capability 3.6mA. Over-range capability 24mA.

    Output Compliance
    Rload = (Vsupply – 12V) / 0.020A.
    Rload = 0 to 600 ohms @ 24V DC.

    Output DAC Resolution: 16-bit D/A converter.

    Output Update: Software configurable from 10ms to 5000ms. Determines the rate at which the output signal is updated, unless optionally overridden.

    Output Settling Time: 1ms, 0% to 98% for a step-change in input, typical.

    Output Accuracy: Better than ±0.05% of span, typical (±0.1% max) for for nominal input spans. Includes the effects of repeatability, terminal point conformity, and linearization, but does not include sensor error.

    Ambient Temperature Effect: Better than ±0.0020% per °C of input span or ±20ppm/°C, typical. Includes the combined effects of zero and span drift over temperature.

    Environmental

    Operating temperature: -40 to 80°C (-40° to 176°F).

    Storage temperature: -40 to 85°C (-40 to 185°F).

    Relative humidity: 5 to 95% non-condensing.

    Power requirement: 12-32V DC SELV (Safety Extra Low Voltage), 24mA maximum.

    Isolation: 1500V AC peak. 250V AC (354V DC) continuous isolation between input and output circuits.

    Shock and Vibration Immunity
    Vibration: 4g, per IEC 60068-2-64.
    Shock: 25g, per IEC 60068-2-27.

    Electromagnetic Compatibility (EMC) Compliance
    Radiated Emissions: BS EN 61000-6-4, CISPR 16.
    RFI: BS EN 61000-6-2, IEC 61000-4-3.
    Conducted RFI: BS EN 61000-6-2, IEC 61000-4-6.
    ESD: BS EN 61000-6-2, IEC 61000-4-2.
    EFT: BS EN 61000-6-2, IEC 61000-4-4.
    Surge Immunity: BS EN 61000-6-2, IEC 61000-4-5.

    Approvals: CE compliant. Designed for UL/cUL Class I Division 2 Groups ABCD, ATEX / IECEx Zone 2.

    Physical

    General: General-purpose enclosure designed for mounting on 35mm “T-type” DIN rail.

    Case Material: Self-extinguishing polyamide, UL94 V-0 rated, color light gray. General-purpose NEMA Type 1 enclosure.

    I/O Connectors: Removable plug-in terminal blocks rated for 12A/250V; AWG #26-12, stranded or solid copper wire.

    Dimensions: 12.5 x 114.5 x 99.0 mm (0.5 x 4.51 x 3.90 inches).

    Shipping Weight: 0.22 kg (0.5 pounds) packed.

    Learn more about the TT Series of Isolated Transmitters and view all models >

  • Features & Benefits

    • Easy setup and digital calibration via USB with Windows configuration software
    • Measures frequency or duty cycle and interfaces many input types up to 100KHz
    • Accepts input amplitudes up to 120Vrms (±170V DC, unipolar or bipolar)
    • Adjustable 0Hz cut-off, sample averaging, debounce, and output update time
    • Software configurable pull-up/down resistors ( 4V DC input pull-up for sensors/tranducers)
    • 1500V isolation between input/output circuits
    • Space-saving 12.5mm (0.5 inch) unit with pluggable terminals for convenient wiring
    • Fast response time and high accuracy
    • Supports normal or reverse-acting output
    • Supports sink or source output wiring
    • NAMUR-compliant output loop current
    • Shock (25g) and vibration (4g) resistant
    • Wide ambient operation (-40 to 80°C)
    • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals

     

     

  • Specs & Data Sheets

    Specifications

    Manuals

    TT239 User Manual (Log in to download the file)

  • Software

    TT230 Series Windows Configuration Software (Log in to download the file)
    Wireless Config Tool: The Agility™ Mobile App (Log in to download the file)
  • Accessories

    • Compare

      TT230-Config/Cal: Calibration Service

      • Factory custom configuration/calibration service.
      • Specify input type, input/output zero and full-scale values, filtering, and sensor fault settings on order.
      Select options
    • Compare

      TTC-SIP: Software

      • Software Interface Package for Acromag DT, ST, TT Series Transmitters and SP, uBSP Series Signal Splitters.
      • Includes configuration sofware CD-ROM (5040-xxx), isolator (USB-ISOLATOR) and two USB cable (4001-112, 4001-113) (Recommend one kit per customer.)
      • Easy setup and digital calibration via USB with Windows configuration software.
      • Download the configuration software only - from the Software Tab
      Select options
  • Additional information

    Additional information

    Weight 8 oz
    Dimensions 4.51 × 0.5 × 3.9 in
    Part Number

    TT239-0600: Two-wire, isolated freq

    Configuration

    Agility Mobile App, Factory Calibration, USB Configuration, Windows Software Configuration

    Product Series

    TT230 Series

    Power

    Loop Power