Electronic pressure measuring device

Description:

Series 130 Electronic Pressure Measurement Device.
The electronic measurement device is an essential tool during the balancing phase of hydraulic systems.
The system consists of a differential pressure (ΔP) sensor and a remote control unit (terminal) featuring the Caleffi Balance programming software. This unit can be supplied or replaced by an Android® device by downloading the app.
The differential pressure sensor communicates via Bluetooth®.
The software also contains data for most commercially available manual balancing valves.

Technical specifications:

Measurement range

• Differential pressure: 0–1,000 kPa
• Static pressure: < 1,000 kPa
• System temperature: -30 to 120°C

Measurement accuracy

• Differential pressure: < 0.1% of full scale

Sensor

• Battery capacity: 6,600 mAh
• Operating time: 35 hours of continuous operation
• Charging time: 6 hours
• IP rating: IP 65

Ambient temperature of the device

• During operation and charging: 0–40°C
• During storage: -20–60°C
• Ambient humidity: max. 90%
• Sensor weight: 540 g
• Weight of complete case: 2.8 kg

Key components:

• Measurement sensor
• 2 measuring tubes
• 2 measuring probes
• Touchscreen unit with license and accessories
• Sensor battery charger
• Unit battery charger
• Communication cable between the unit and the PC
• Instructions with license to download the Android® app (for code 130005)
• Instruction manual
• CD containing the instruction manual, measurement and balancing software, valve database, and report viewing tool.
• Calibration certificate. The sensor is supplied with a calibration certificate issued by a certified laboratory

Operating principle

The operator selects the balancing valve from the list available on the terminal (manufacturer, model, dimensions, and position with corresponding Kv). The valve data, along with the measured pressure drop (ΔP), serve as the basis for calculating the flow rate, which is displayed on the terminal screen. If the valve is not listed in the database, its Kv value can be entered manually.

Measurement Method

The device allows you to choose between 3 measurement methods:

1. Fixed-position measurement. Displays the flow rate calculated by the device based on the selected valve and its position.
2. Set flow measurement. The valve’s set position is calculated to achieve the desired flow rate.
3. Simple DP measurement. The screen displays the differential pressure value measured by the sensor.