Airflow checks are faster when pressure, velocity, flow rate and temperature are handled by one handheld logger. The PRO 915-2 measures differential pressure in air and non-aggressive dry gases with a ±20.0 hPa range and connects to K-type thermocouple probes for temperature measurement from -220 to +1372 °C.
In combination with a Pitot tube, the instrument calculates air speed and, with the duct section entered, air flow rate. That makes it well suited for duct measurements where technicians need pressure, airflow and temperature values on one clear display, supported by Min/Avg/Max statistics, HOLD and REL functions.
For documentation, the PRO 915-2 stores up to 1 million data sets with date/time stamp and USB-C mass storage access. The backlit dot matrix LCD offers large value, multi-row, statistical and chart views, while the foldable stand, magnet, IP67 protection and external 5 Vdc power via USB-C support field and bench-top use.
The internal digital sensor measures the pressure difference between the '+' and '-' inputs.
A miniature female flat-pin connector accepts standard K-type thermocouple probes.
The display can show large values, multi-row screens, Min/Avg/Max statistics or chart views.
The Pitot coefficient can be configured for velocity calculation when using a Pitot tube.
The instrument calculates air flow rate when the duct cross-sectional area is entered.
High and low thresholds with optional hysteresis can trigger acoustic or optical alarms.
The USB-C port supports mass storage access, serial communication and external power.
Zero point and gradient settings are available for pressure and temperature measurement.
| Type of media |
Air, Non-aggressive dry gases
|
|---|
| Temperature inputs |
1
|
|---|---|
| Measuring principle |
Thermocouples
|
| Measurement rate |
4 /s
|
| Pressure range |
±20 hPa
|
| Resolution pressure |
0.1 hPa
|
| Accuracy pressure |
±0.15% FSS (FSS = 2 x full scale pressure) ± 1 digit typ. @ 25 °C. ±1.5% FSS ± 1 digit max.
|
| Overpressure limit |
100 hPa
|
| Pressure type |
differential
|
| Connection |
2 universal barbed pressure ports (+/-) for 4 and 6 mm inner diameter hose, interchangeable G 1/8 thread connection
|
| Sensor type pressure |
differential
|
| Number of measuring inputs |
3
|
| Temperature range TC K |
-220...+1372 °C
|
| Temperature range |
-220...+1372 °C
|
| Resolution temperature |
0.1 °C
|
| Accuracy temperature |
±0.2 % ±0.2 °C
|
| Temperature sensor |
Type K
|
| Long-term drift temperature |
±0.1 °C
|
| Operating temperature |
-5...+50 °C
|
|---|---|
| Operating relative humidity |
0...85 %RH
|
| Condensation |
not permitted
|
| Storage temperature |
-25...+65 °C
|
| Degree of protection case |
IP67
|
| Dimensions |
80 mm x 170 mm x 38 mm
|
|---|---|
| Materials |
ABS, TPE, Polyester, side protection: TPE, front panel: polyester
|
| Weight |
350 g
|
| Clock |
User settable RTC. Max. drift 1 min/month @ 25 °C
|
|---|---|
| Data export |
USB-C Mass Storage Device
|
| Type |
automatic & manual
|
| Data structure |
Up to 1 million data sets, file system based. Each data set includes date/time stamp and measurement. Data are stored in CVS files
|
| Interval |
1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30 min / 1 hour
|
| Description |
Automatic with manual start/stop
|
| Interface type |
USB
|
|---|---|
| Communication ports |
USB-C
|
| Battery life |
150 h
|
|---|---|
| Battery life description |
> 150 h typ. continuous operation
|
| Battery type |
Battery 4x AA alkaline
|
| Power consumption |
20 mA, typ.
|
| Connection |
Miniature flat pin plug
|
|---|
| Display presence |
Yes
|
|---|---|
| Description |
Multiple choice of measurement screens:
Large digit single value Multi-row Statistical info (Min/Avg/Max) Chart view |
| Resolution |
140 x 160 dot matrix (visible area 42 x 50 mm)
|
| Type of controls |
Button
|
| Display type |
LCD backlit
|
