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

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