Leak calibrator XY-4002

multifunctionpressurefor pressure gauges

Overview
The YUNYI XY-4002 sphygmomanometer calibrator is a bench instrument designed for metrological verification of blood pressure devices in accordance with JJG270-2008 and JJG692-2010. It integrates microprocessor control, dedicated pneumatic components and an internal micro air pump to provide precise static pressure references and dynamic blood pressure simulation for both mercury and electronic sphygmomanometers.

Main Capabilities

• Dynamic blood pressure waveform simulation and static pressure calibration
• Automatic leak testing and over‑pressure release detection
• Automatic pressure generation with internal micro pump and onboard air reservoir
• Adult and neonatal simulation modes
• Touchscreen LCD for test setup and result display

Main Components

• Power supply module
• Micro air pump
• Simulated piston/cylinder assembly
• Servo motor
• Air reservoir
• Reference pressure sensor
• Main electronic control board
• Air release/adjustment valve
• Touchscreen LCD

Operation Sequence

• The internal micro air pump generates pressure and stores it in the air reservoir.
• The air release valve adjusts pressure precisely to each verification point.
• For a mercury or electronic sphygmomanometer under test, the operator records the indicated values and computes indication error at each point.
• Other regulated test items are executed automatically by the instrument; results are calculated and shown on the display for recording.

Technical Specifications
Operating environment: 15–35 °C; humidity <80% RH
Pressure adjustment time: average 5–6 seconds per point
Measurement range: 0–60 kPa
Accuracy class: 0.1% (Class 0.1)
Adult mode — Systolic: 6.7–34.0 kPa (50–255 mmHg); Diastolic: 4.0–26.0 kPa (30–195 mmHg)
Neonatal mode — Systolic: 4.0–16.0 kPa (30–120 mmHg); Diastolic: 1.3–13.3 kPa (10–100 mmHg)
Blood pressure repeatability: ≤ 0.3 kPa (2 mmHg)
Heart rate simulation: 30–250 beats/min
Maximum simulated pressure: 450 mmHg (60 kPa) for leak and over‑pressure tests

Instrument Functions
1. Sphygmomanometer Verification
For mercury sphygmomanometers:

• Indication error (accuracy) test
• Sensitivity test
• Airtightness (leak) test

For electronic sphygmomanometers:

• Static indication error test
• Deflation rate test
• Blood pressure indication repeatability test
• Airtightness (leak) test

2. Pressure Standard Function
The XY-4002 can serve as a static pressure reference for calibration of precision pressure gauges and general pressure measuring instruments.

Key Features & Benefits

• Compliant with JJG270-2008 and JJG692-2010
• Combined dynamic simulation, static calibration, leak and over‑pressure tests in one unit
• Automatic pressure generation and onboard storage for faster verification (~5–6 s/point)
• Compatibility with mercury, electronic sphygmomanometers and patient monitors
• Separate adult and neonatal ranges for clinical and pediatric devices
• Over‑pressure protection and safety valve
• Integrated touchscreen for control and result review
• Self-contained design with internal pump—no external pressure source required

Typical Applications
Metrology and calibration laboratories — official verification of blood pressure monitors
Hospitals and clinics — in‑house performance checks of ward and ICU monitors
Medical device manufacturers — production quality control
University laboratories — teaching and research on physiological instrumentation
Maintenance and service centers — repair verification and calibration
Pressure gauge calibration — as a static pressure standard for precision and general gauges

Included Accessories (Typical)

• XY-4002 main unit
• Power cord
• Connecting hoses and adapters (compatible with common cuffs and monitors)
• Operating manual (Chinese/English)
• Factory calibration certificate

Operation & Safety Notes
Before Use

• Place the instrument on a stable, level surface, away from drafts and vibration.
• Verify ambient conditions: 15–35 °C, humidity <80% RH.
• Connect to the correct mains voltage as marked on the device.
• Allow warm‑up time per the manual.

During Use

• Use clean, dry, non‑corrosive gas if external gas is required; device normally generates its own pressure.
• Do not exceed the maximum rated pressure (60 kPa / 450 mmHg) on external connections.
• Ensure correct connection and configuration of the device under test for dynamic simulations.
• Follow standard verification procedures for each test item.

After Use

• Turn off power and disconnect from mains.
• Release residual pressure via the air release valve.
• Clean the exterior with a soft, dry cloth; do not use solvents or immerse the unit.
• Store in a dry, clean place within the specified temperature range.

Calibration & Maintenance

• Recalibrate the XY-4002 periodically per local metrology regulations (typically annually).
• No user‑serviceable internal parts; refer repairs to qualified service personnel.

Technical Specifications

• Model: XY-4002
• Measurement range: 0–60 kPa
• Maximum simulated pressure: 450 mmHg (60 kPa)
• Accuracy class: 0.1% (Class 0.1)
• Pressure adjustment time: ~5–6 seconds per point
• Adult mode ranges: Systolic 50–255 mmHg; Diastolic 30–195 mmHg
• Neonatal mode ranges: Systolic 30–120 mmHg; Diastolic 10–100 mmHg
• Blood pressure repeatability: ≤ 0.3 kPa (2 mmHg)
• Heart rate simulation range: 30–250 beats/min
• Operating environment: 15–35 °C, humidity <80% RH