MU-TAIL02 Honeywell Analog Input Processor MU-TAIL02 8 Isolated Inputs

MU-TAIL02 Honeywell Low Level Analog Input Processor | 8 Isolated Inputs

The MU-TAIL02 is a low level analog input processor for Honeywell process control systems. It handles 8 galvanically isolated input channels. Each channel accepts thermocouple, RTD, voltage, or current signals. Two-wire transmitters need a separate power source. A 15-bit A/D converter digitizes each channel. All channels sample at the same time. The module rejects common mode and normal mode noise well. This makes it a fit for furnace, boiler, and reactor temperature loops where small signals sit near heavy electrical noise.

Input and Conversion Data

• Brand: Honeywell
• Model: MU-TAIL02
• Module type: Low level analog input processor
• Input type: thermocouple, RTD, voltage, current
• Input channels: 8, galvanically isolated
• A/D resolution: 15 bits
• Measurement range: 0 to 100 mV and 0 to 5 V hardware ranges
• Input scan rate: 8 samples per second per channel
• Scan rate with open TC detection: 4 samples per second per channel
• Sampling: all channels sample simultaneously

Noise and Isolation Data

• CMV, dc to 60 Hz: 250 Vac rms or ±250 Vdc
• Dielectric strength: 1500 Vac rms or ±1500 Vdc
• Isolation path: channel to channel, channel to PM/APM/HPM common
• CMRR, dc to 60 Hz: 120 dB min with 1 kΩ lead imbalance
• NMRR at line frequency: 60 dB min
• Crosstalk, dc to 60 Hz: 120 dB
• Normal mode filter, -3 dB point: 10.6 Hz typical, 9.6 Hz min, 11.9 Hz max
• Surge withstand, common mode: ANSI/IEEE C37.90.1-1978

Impedance and Input Limits

• Input impedance, unpowered: 5 kΩ min at 0 to 5 Vdc
• Input impedance, powered: 10 MΩ min at 0 to 5 Vdc
• Max normal mode input, no damage: -20 mV to 5.5 V

Accuracy and Stability

• Hardware accuracy, 0 to 100 mV and 0 to 5 V: ±0.05 percent of full scale, or ±0.075 percent of reading at 23.5 ±2 °C, whichever is larger
• Software accuracy: ±0.1 °C typical, ±0.5 °C max at 23.5 ±2 °C
• Reference junction accuracy: ±0.9 °C max at 23.5 ±2 °C, in cabinet
• Temperature stability, voltage, current, and TC input: 45 ppm/°C RSS, 70 ppm/°C max
• Temperature stability, RTD input: 50 ppm/°C RSS, 85 ppm/°C max

Line Frequency Synchronization

• Type: running average
• Frequency range: 50/60 Hz, +3 percent to -6 percent