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Product short description:
  • Universal TC/millivolt input (TC type J, K, T, R, S, E, B, N or ±100mV input)
  • Universal current/voltage output
  • 12-32V DC local/bus power
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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

Specifications

Manuals

TT333 User Manual (Log in to download the file)

Agility Config Tool (Log in to download the file)
TT330 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
  • Specs & Data Sheets

    Specifications

    Manuals

    TT333 User Manual (Log in to download the file)

  • Software

    Agility Config Tool (Log in to download the file)
    TT330 Series Windows Configuration Software (Log in to download the file)
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      • Easy setup and digital calibration via USB with Windows configuration software.
      • Download the configuration software only from the Software Tab below
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      Select options
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      USB Isolator

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      • 1500V AC / 2100V DC isolation
      • No drivers required
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      Select options
  • Additional information

    Additional information

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

    USB-Isolator: includes USB cable