Acromag, Inc. RTD/Resistance Input Four-Wire Dual Transmitter DT335

DT330 series signal conditioners provide two independent I/O channels in a single, space-saving unit. The DT335 model is a four-wire dual transmitter that isolates and converts RTD or linear resistance sensor inputs to proportional control signals. Each channel supports DC current or voltage output. An optional DIN rail bus can deliver primary or redundant power to multiple units. • Dual channels • RTD (Pt, Ni, Cu) or 0-4500 ohm input • 0-20mA, ±10V outputs • 6-32V DC local/bus power Description High-voltage isolation separates inputs, outputs, and power from each other. 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. The Android app enables setup with mobile devices. Advanced signal processing capabilities, variable range input/output, and convenient USB programming make this instrument very versatile. 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 use of their USB-ISOLATOR when configuring a DT330 Series transmitter. USB Interface: USB Connection: Type: USB Mini-B type socket, 5-pin. Data rate: 12Mbps. USB v1.1 and 2.0 compatible. Maximum cable length: 5.0 meters. Transient voltage suppression on power and data lines. USB Driver: Not required. Uses built-in Human Interface Device (HID) USB drivers of the Windows operating system. Input (two channels): Default Configuration: Input: 100ω Pt RTD, 3-wire, α=0.00385, -200 to 850°C, medium filter. Output: 4 to 20mA, upscale break detect. A/D Converters (ADC): Two 24-bit Sigma Delta ADCs (only 16-bits used).