Technical Specifications:

• Measurement Type: Vibration velocity (true RMS) or acceleration (with IEPE input)
• Output Signal: 4–20 mA DC (2-wire, loop-powered)
• Frequency Range: 10 Hz to 1000 Hz (velocity), 10 Hz to 10,000 Hz (acceleration)
• Measurement Range: 0 to 25 mm/s (velocity), 0 to 50 g (acceleration) — configurable
• Accuracy: ±1% of full scale (velocity), ±2% of full scale (acceleration)
• Power Supply: 18–30 V DC (loop-powered)
• Current Consumption: ≤ 20 mA (typical 16 mA at 24 V DC)
• Output Load: Up to 600 Ω
• Protection Rating: IP66/IP67 (NEMA 4X)
• Certification: Intrinsically Safe (Ex ia IIC T6 Ga), ATEX, IECEx, FM
• Operating Temperature: -40°C to +85°C
• Dimensions: 72 × 115 × 90 mm (W × H × D)
• Weight: Approximately 0.5 kg
• Sensor Input: Piezoelectric velocity sensor (mV/mm/s) or IEPE acceleration sensor

Functional Features:

• True RMS measurement for accurate vibration assessment
• Configurable low-pass filter (10 Hz to 1 kHz)
• Configurable alarm setpoints (HH, H, L, LL) with relay output option
• HART 7 communication for remote configuration
• Zero and span adjustment via HART or local potentiometer
• DC offset output for trend monitoring

Performance Parameters:

• Linearity: ±0.5% of full scale
• Temperature Drift: ±0.02% of full scale per °C
• Response Time: < 100 ms
• Overload Protection: 200% of full scale (no damage)
• EMC Compliance: IEC 61326-1, EN 61326-1

Material Composition:

• Housing: Die-cast aluminum alloy with epoxy powder coating
• Connector: M12 × 1, 4-pin (standard for sensor connection)
• Terminal block: Phoenix Contact-compatible screw terminals
• Cable gland: Nickel-plated brass with FKM (Viton) seal
• PCB: Conformal-coated for moisture resistance

Structural Features:

• Compact DIN rail or wall-mount design
• M12 sensor connector on top
• Screw terminal block on the bottom for loop wiring
• LED indicators for power, alarm, and communication status
• HART communication terminals

Working Principle:
The YS1700 receives a raw vibration signal from a piezoelectric velocity sensor or IEPE acceleration sensor. The signal is conditioned (amplified, filtered, and RMS-converted) by the internal signal processor. The processed signal is linearly scaled to a 4–20 mA output current. For velocity measurement, the piezoelectric sensor generates a voltage proportional to vibration velocity (mV/mm/s). The transmitter converts this to a 4–20 mA output where 4 mA = 0 mm/s and 20 mA = full scale. HART communication superimposes digital data on the 4–20 mA loop for remote configuration and diagnostics.

Advantages & Highlights:

• True RMS measurement provides accurate vibration severity assessment
• 2-wire loop-powered design simplifies wiring (no separate power supply needed)
• Intrinsically safe for Zone 0/1 installation on rotating machinery
• Configurable filter eliminates high-frequency noise
• HART communication enables remote calibration and diagnostics
• Wide operating temperature range (-40°C to +85°C) for harsh environments

Applicable Industries:

• Oil and gas (pumps, compressors, turbines)
• Power generation (steam turbines, generators, fans)
• Mining (crushers, conveyors, mills)
• Pulp and paper (rollers, dryers)
• Steel and metals (rolling mills, motors)
• Water and wastewater (pumps, blowers)

Installation Requirements:

• Mount the transmitter as close as possible to the vibration sensor (maximum 10 meters cable length recommended)
• Use shielded twisted-pair cable for sensor connection
• Ground the transmitter housing and cable shield at one end only
• Configure the measurement range and filter in the DCS/SCADA to match the transmitter settings
• Verify the sensor type (velocity vs. IEPE) matches the transmitter input configuration

Usage Precautions:

• Do not apply voltage to the sensor input terminals (the transmitter provides excitation for IEPE sensors only)
• Do not exceed the maximum input signal (500 mV for velocity sensors)
• Perform zero calibration with the machine stopped (no vibration)
• Check the 4–20 mA output with a calibrated milliammeter during commissioning
• Replace the transmitter if the output drift exceeds ±2% of full scale