Absolute pressure transmitter TX3351

4-20 mAdigitalHART

The pressure transmitter TX3351-GP&AP is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure.TX3351-GP&AP outputs a 4 to 20 mA DC signal corresponding to the measured pressure. The key features include quick response, remote set-up using communications, self-diagnostics and optional status output for pressure high/low alarm. STANDARD SPECIFICATIONS 1 PERFORMANCE SPECIFICATIONS Reference Accuracy of Calibrated Span (includes terminal-based linearity, hysteresis, and repeatability) External Zero Adjustment External zero is continuously adjustable with 0.01% incremental resolution of span. Re-range can be done locally using the range setting switch. Mounting Position Effects Rotation in diaphragm plane has no effect. Tilting up to 90 degree will cause zero shift up to 0.25 kPa which can be corrected by the zero adjustment. Output Two wire 4 to 20 mA DC output with digital communications, linear or square root programmable. HART FSK protocol is option superimposed on the 4 to 2 INSTALL Supply & Load Requirements 24 V DC supply, R≤(Us -12V)/Imax kΩ, Imax=23 mA. 20 mA signal. Output range: 3.9 mA to 20.5 mA Failure Alarm (the mode can be selected) Low Mode (min): 3.7 mA, High Mode (max): 21 mA No Mode (hold): Keep the effective value before fault. The standard setting of failure alarm is High Mode.