Vacuum and absolute pressure checks are easier when readings are clear, traceable and available wherever the work happens. The PRO 241 / PRO 245 measures absolute pressure from 0.0 to 1700.0 hPa abs. in air and non-aggressive dry gases, with 0.1 hPa resolution and typical accuracy of ± 2 hPa at 5 to 30 °C.
The large backlit dot matrix LCD supports fast evaluation with large value, multi-row, statistical and live chart views. HOLD freezes values, REL shows measurement against a reference value, and Min/Avg/Max functions help users assess changing pressure conditions without extra calculation.
For documentation, PRO 245 adds automatic logging up to 1 million data sets with date/time stamp, CSV storage and USB-C mass storage access. The universal G 1/8 pressure port fits 4 and 6 mm inner diameter hoses, while the foldable stand, magnet, IP67 protection and > 250 h battery autonomy support reliable field and bench-top use.
The internal digital sensor measures absolute pressure applied to the pressure input.
The instrument covers 0.0 to 1700.0 hPa abs. and also displays values in PSI or mmHg.
Users can select large value, multi-row, statistical information or graphical history views.
The device calculates sea level pressure from absolute pressure using the configured altitude above sea level.
Alarm thresholds and hysteresis can be configured with acoustic indication, optical indication or both.
The USB-C port supports serial communication and, on PRO 245, access to stored logging files.
The meter operates with 4 AA alkaline batteries or external 5 Vdc power through USB-C.
Zero point and gradient settings allow user correction of the pressure measurement.
| Type of media |
Air, Non-aggressive dry gases
|
|---|
| Temperature inputs |
0
|
|---|---|
| Measurement rate |
4 /s
|
| Pressure range |
0...1700 hPa
|
| Resolution pressure |
0.1 hPa
|
| Accuracy pressure |
Typ.: ± 2 hPa (@ T: 5...30 °C). Max.: ± 1.25 % FSS
|
| Overpressure limit |
3000 hPa
|
| Pressure type |
absolute
|
| Connection |
1 x Universal barbed pressure port (+/-) for 4 and 6 mm inner diameter hose, interchangeable G 1/8 thread connection
|
| Sensor type pressure |
Digital absolute pressure sensor
|
| Number of measuring inputs |
1
|
| 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 |
345 g
|
| Type |
none
|
|---|
| Interface type |
USB
|
|---|---|
| Communication ports |
USB-C
|
| Battery life |
250 h
|
|---|---|
| Battery life description |
> 250 h typ. continuous operation
|
| Battery type |
Battery 4x AA alkaline
|
| Power consumption |
10 mA, typ.
|
| 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
|
