PRO 915-2 is a professional handheld differential pressure measuring device with data logger and a variety of functions, high robustness and ease of use for safe and reliable use.
The large, multilingual dot matrix/plain text LCD display offers ergonomic visibility day and night thanks to the backlight.
It shows either measured values, statistical data or variable measurement curves as a diagram.
The HOLD function freezes the display values, while the REL function shows measured values relative to a comparison value.
Various units of measurement are available for pressure, air velocity, air flow and temperature.
High storage capacity: up to 1 million data records, file system-based.
The data is stored in CSV files, which can be easily viewed when the device is connected to a PC via USB:
The device is recognized by the PC as a mass storage device, so data can be retrieved and viewed without additional software.
Automatic logging with adjustable interval.
Real-time clock integrated: The date and time of each recorded sensor is recorded.
Configurable alarm thresholds and optional hysteresis are adjustable.
LCD display and activation of the buzzer when the thresholds are exceeded.
The meter has an internal ±20 hPa digital differential pressure sensor.
Zero point and slope corrections by the user allow compensation for possible sensor deviation over time in order to achieve the best measurement accuracy.
Measurement of air velocity and flow rate:
The device can be combined with a Pitot tube to calculate the air velocity.
The tube constant is adjustable.
By setting the duct cross-section in the data logger, the air flow rate is also available when measuring air velocity in a duct.
The data logger has a miniature flat plug input for type K thermocouple probes to record the temperature.
This also allows the use of pitot tubes with integrated type K thermocouple sensor.
Via the USB-C port, to view and download the files stored in the device or to connect the ProXware application software.
Detection of MIN, AVG (average) and MAX for each variable displayed.
The user can reset the statistical information to start new statistical calculations.
Measuring inputs:
Pressure: 2 x universal pressure nozzles (+/-) for hose with 4 and 6 mm inner diameter,
interchangeable G 1/8 threaded connections
Temperature: 1 miniature thermocouple plug (flat plug)
Compatible media: air and non-aggressive dry gases
Temperature input: socket for 2-pin standard flat plug type K
Measuring ranges:
Pressure: ±20.00hPa / ±2000Pa
Temperature: K: -200 to +1370°C
Resolution: Pressure: 0.1hPa
Temperature: 0.1°C
Accuracy:
Accuracy typ. Pressure: ±0.15% FSS) ± 1 digit typ. @25°C ±1.5% FSS ± 1 digit max. (FSS = 2 x full scale pressure)
Accuracy typ. temperature: ±(0.2°C+0.2% of measured value) ±1 digit + reference junction
Accuracy of the reference junction (TC input): ±0.3°C
Temperature drift (relative to 25°C): ±1%FSS/year max. (FSS = 2 x full scale pressure)
Long-term pressure deviation: ±1%FSS/year max. (FSS = 2 x full scale pressure)
Long-term temperature deviation: ±0.1°C/year
Overpressure limit: ±100hPa
Measurement rate: 4 measurements/s
Data logger:
Storage capacity:
Up to 1 million data records, file system based
Each data record contains date/time stamp and measured values.
The data is saved in CSV files.
Type of recording: Automatic with manual start/stop
Recording interval: 1, 2, 5, 10, 15, 30s / 1, 2, 5, 10, 15, 30min / 1h
Clock: User-configurable date and RTC function (max. deviation 1min/month at 25°C)
User interface: Multilingual (DE, EN, IT, FR, ES)
Read data logger via USB
PC connection: USB C (cable included), mass storage device
Power supply: 4 x AA battery (included)
External 5VDC via USB C (power supply or PC USB port)
Power consumption: 20mA typ.
Battery life: >150h, typical continuous operation
Automatic switch-off: User-configurable
Automatically deactivated when external power supply is connected
Standard functions: Acoustic/optical alarm, automatic Switch off
Display: 140 x 160 dot matrix LCD with backlight / visible area 42 x 50mm,
Large display of measured values, statistical information (min/avg/max), live chart
Display units volume flow: m³/h
Display units air speed: m/s, km/h, mph, knots
Display units pressure: Pa, kPa, bar, mbar, inHg, inH2O, mmH2O
Display units temperature: °C, °F, K
Operating conditions: -5 to +50°C; 0 to 85% (non-condensing)
Storage temperature: -25 to +65°C (without batteries)
Housing material: Shock and impact resistant, ABS, TPE (side protection), polyester (front panel)
Dimensions: 178 x 80 x 38mm³
Weight: 350g including battery
Extras: Foldable stand and magnet for flexible use
Scope of delivery:
Device in a box, including batteries, 2 hoses, test report, quick start guide
