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Product short description:
  • Universal thermocouple / millivolt input
  • Universal current / voltage output
  • 12-32V DC local / bus power

The TT333 model is a space-saving four-wire transmitter that isolates and converts a millivolt or thermocouple sensor input to a proportional control signal. DC current and voltage output are both supported on a single model.

Click here to watch a short video highlighting the TT330 Series.

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The TT333 model is a space-saving four-wire transmitter that isolates and converts a millivolt or thermocouple sensor input to a proportional control signal. DC current and voltage output are both supported on a single model. An optional DIN rail bus can deliver primary or redundant power to multiple units without wiring.

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 temperature 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.

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 TT330 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
Maximum Cable Length: 5.0 meters
Driver: Not required. Uses Windows HID drivers

Input

Default Configuration/Calibration:
Input: TC J, -210 to 760°C, medium filter, Break: up
Output: 4 to 20mA

Input Ranges and Accuracy
Input                         Range                                     Accuracy
TC J         -210 to 760°C (-346 to 1400°F)             ±0.5°C
TC K        -200 to 1372°C (-328 to 2502°F)           ±0.5°C
TC T        -260 to 400°C (-436 to 752°F)                ±0.5°C
TC R          -50 to 1768°C (-58 to 3214°F)              ±1.0°C
TC S          -50 to 1768°C (-58 to 3214°F)              ±1.0°C
TC E        -200 to 1000°C (-328 to 1832°F)           ±0.5°C
TC B        260 to 1820°C (500 to 3308°F)              ±1.0°C
TC N       -230 to -1300°C (-274 to 2372°F            ±1.0°C
mV          -100 to 100mV                                             ±0.1mV
Error includes the effects of repeatability, terminal point conformity, and linearization.

Thermocouple Reference (Cold Junction Compensation): ±0.2°C typical, ±0.5°C maximum at 25°C.

Ambient Temperature Effect: Better than ±80ppm/°C (±0.008%/°C).

Scaling Adjust:
Zero: 0 to 95% of range, typical.
Full Scale: 5 to 100% of full scale range, typical.

Lead Break (Sensor Burnout) Detection: Upscale/downscale ±5% full scale range typical.

Input Over-Voltage Protection: Bipolar Transient Voltage Suppressers (TVS), 5.6V clamp level typical.

Input Resolution
Millivolt input: 0.0025% (1 part in 40,000).
Thermocouple input: 0.1°C.

Input Impedance
Current input: 24.9 ohms.
Voltage input: 15M ohms.

Input Filter: Selectable digital filtering settings (none, low, medium, high).

Noise Rejection (Common Mode, High Filter)
Normal mode @ 60Hz: >0.5dB (no filter), >80dB (high filter).
Common mode @ 60Hz: >100dB (no filter), >130dB (high filter).

Output

Output Range:
Range                    Over-Range                 Resolution
±10V                            ±10.5V                       1 part in 62415
±5V                               ±5.25V                      1 part in 31208
0 to 10V              –0.5527 to +10.5V        1 part in 59240
0 to 5V              –0.27634 to +5.25V        1 part in 60262
±20mA                        ±10.5V                      1 part in 62259
0 to 20mA          –1.1054 to 21mA         1 part in 58596
4 to 20mA          –1.1054 to 21mA         1 part in 46877

Output Load
Voltage output: 1K ohms minimum.
Current output: 0-550 ohms.

Output Response Time (for step input change)

Time to reach 98% of output value (typical)
No filter                   15 milliseconds
Low filter                40 milliseconds
Medium filter      120 milliseconds
High filter             850 milliseconds

Output Ripple: Less than ±0.1% of output span.

Output Ambient Temperature Drift: Better than ±80ppm/°C (±0.0080%/°C.

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, output, and power (3-way).

Shock and Vibration Immunity
Vibration: 4g, per IEC 60068-2-6.
Shock: 25g, per IEC 60068-2-27.

Approvals: CE compliant. Designed for UL/cUL Class I Division 2 Groups ABCD. ATEX / IECEx certified Zone 2. II 3 G Ex nA IIC T4 Gc -40°C < Ta < +80°C.

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.

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: 17.5 x 114.5 x 99.0 mm (0.7 x 4.51 x 3.90 inches).

Shipping Weight: 0.22 kg (0.5 pounds) packed.

  • Easy setup and digital calibration via USB with Windows configuration software
  • Universal thermocouple or millivolt input (TC Type J, K, T, R, S, E, B, N  or ±100mV)
  • Universal output connections support ranges up to ±21mA or ±10.5V DC without rewiring
  • Space-saving 17.5mm (0.7 inch) unit with pluggable terminals for convenient wiring
  • High accuracy, linearity, stability, and reliability
  • User-selectable filtering (low, medium, high)
  • Supports reverse-acting (inverse) output
  • Selectable upscale or downscale operation for sensor errors and lead-break detection
  • Bus power, local power, or both
  • Redundant power ready (rail/local)
  • 1500V input isolation
  • Shock (50g) and vibration (5g) resistant
  • Mounts on Type T DIN-rail
  • Wide ambient operation (-40 to 80°C)
  • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals
Minimizing Measurement Errors When Making Thermocouple to Transmitter Connections White Paper (Log in to view the file)
How To Prevent Temperature Measurement Errors It will give you a keen understanding of the three basic laws of thermocouples: Homogeneous materials, Intermediate Metals, and Successive/Intermediate Temperatures. It is helpful in weeding out potential sources of error in a thermocouple measurement system.
Temperature Measurement Using Thermocouples White Paper (Log in to view the file)
The Basics of Temperature Measurement Using Thermocouples Choosing a temperature sensor for an application is not as simple as picking a thermocouple type with a compatible temperature range. You must give consideration to the sensor material type, the application temperature range, the relative sensitivity of the sensor, the limitations of its insulation material, and its...
How to use Thermocouple Transmitters to Monitor Temperatures in Paint Systems Application Note
This document illustrates using Acromag’s TT330 Series to monitor high temperatures in an automotive paint curing oven and transmit to the existing PLC 4-20mA input card/software setup. Defining the Problem The area around an auto manufacturer’s paint curing ovens is at elevated temperatures affecting the performance of locally installed instrumentation. Placing Signal Conditioners rated for...

Manuals

TT333 User Manual (Log in to download the file)

Agility Config Tool (Tethered) (Log in to download the file)
TT300 Series Windows Configuration Software (Log in to download the file)
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Additional information

Weight 8 oz
Dimensions 2.4 × 1.85 × 0.925 in
Part Number

USB-Isolator: includes USB cable

  • Description

    This compact, industrial-grade isolator provides a high-voltage isolation barrier between a computer and a connected USB device.

    The isolation protects equipment from electrical surges and transient voltage spikes. It also eliminates ground loop currents flowing between the PC and peripherals which can cause damage and inaccurate measurements. Additionally, isolation minimizes conducted noise from static discharge, magnetic fields, and radio frequency interference.

    Acromag’s USB isolator is very easy to use. The isolator inserts in-line with the USB connection and operates transparently. No special software drivers are required. The unit receives power from the PC’s USB port and isolates that power to the connected device. High noise immunity and low radiated emissions ensure reliable data transfer in sensitive applications.

    A number of high-performance features help provide convenient and dependable operation. The green LED indicates that power is being received and blinks if the connected device draws too much current. An internal jumper lets you switch from Full Speed (12 Mbps) to Low Speed (1.5 Mbps) communication. The reset button offers a simple way to reinitialize a connected device without breaking the cable connection. High-retention USB sockets keep cables securely attached under shock and vibration.

  • Features & Benefits

    • Easy setup and digital calibration via USB with Windows configuration software
    • Universal thermocouple or millivolt input (TC Type J, K, T, R, S, E, B, N  or ±100mV)
    • Universal output connections support ranges up to ±21mA or ±10.5V DC without rewiring
    • Space-saving 17.5mm (0.7 inch) unit with pluggable terminals for convenient wiring
    • High accuracy, linearity, stability, and reliability
    • User-selectable filtering (low, medium, high)
    • Supports reverse-acting (inverse) output
    • Selectable upscale or downscale operation for sensor errors and lead-break detection
    • Bus power, local power, or both
    • Redundant power ready (rail/local)
    • 1500V input isolation
    • Shock (50g) and vibration (5g) resistant
    • Mounts on Type T DIN-rail
    • Wide ambient operation (-40 to 80°C)
    • CE compliant. UL/cUL Class I Div 2, ATEX / IECEx Zone 2 approvals
  • Tech Papers

    Minimizing Measurement Errors When Making Thermocouple to Transmitter Connections White Paper (Log in to view the file)
    How To Prevent Temperature Measurement Errors It will give you a keen understanding of the three basic laws of thermocouples: Homogeneous materials, Intermediate Metals, and Successive/Intermediate Temperatures. It is helpful in weeding out potential sources of error in a thermocouple measurement system.
    Temperature Measurement Using Thermocouples White Paper (Log in to view the file)
    The Basics of Temperature Measurement Using Thermocouples Choosing a temperature sensor for an application is not as simple as picking a thermocouple type with a compatible temperature range. You must give consideration to the sensor material type, the application temperature range, the relative sensitivity of the sensor, the limitations of its insulation material, and its...
    How to use Thermocouple Transmitters to Monitor Temperatures in Paint Systems Application Note
    This document illustrates using Acromag’s TT330 Series to monitor high temperatures in an automotive paint curing oven and transmit to the existing PLC 4-20mA input card/software setup. Defining the Problem The area around an auto manufacturer’s paint curing ovens is at elevated temperatures affecting the performance of locally installed instrumentation. Placing Signal Conditioners rated for...
  • Specs & Data Sheets

    Manuals

    TT333 User Manual (Log in to download the file)

  • Software

    Agility Config Tool (Tethered) (Log in to download the file)
    TT300 Series Windows Configuration Software (Log in to download the file)
  • Accessories

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      Agility™ Config Tool (Tethered)

      • Tethered Agility™ Config Tool mobile application
      • For Acromag SP Series Signal Splitters and most TT Series Transmitters
      • Download available on Google Play for free.
      • Download Windows configuration software from the software tab below.
      Read more
    • Compare

      PS5R: Slim Line Power Supplies

      • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
      • Universal Input (85-264V AC / 100-370V DC)
      • Lightweight and compact size
      $95$245
      Select options
    • Compare

      TTBus-Kit: DIN Rail Bus Power Connector

      • One kit supports multiple SP Series Splitters or DT and TT Series transmitters.
      $30
      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
      $170
      Select options
    • Compare

      USB Isolator

      • USB-powered, USB 2.0 and 1.1 compatible
      • 1500V AC / 2100V DC isolation
      • No drivers required
      This compact, industrial-grade isolator provides a high-voltage isolation barrier between a computer and a connected USB device.
      $110
      Select options
  • Additional information

    Additional information

    Weight 8 oz
    Dimensions 2.4 × 1.85 × 0.925 in
    Part Number

    USB-Isolator: includes USB cable