The device measures Gauge/Differential Pressure, it features 11 selectable units of measurement: inH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin, ftH2O, cmH2O, kgcm. Additional features including Data Hold, Auto Power Off disabled, and an USB for capturing reading to a PC using optional software.
Careful use of this meter will provide years of reliable service.
8890B measures Differential Pressure from –20Pa to+20Pa and connect to the printer GPT-4379 with USB interface.
8890C measures Gauge/Differential Pressure from -13.86 inH2O to +13.86 inH2O (0.5 psi)
Features：
1.Large Dual LCD with backlight
2.Data Hold
3.Max / Min / Avg value with relative time stamp
4.Optional USB software
5.Zero Adjust, Offset and DIF function
6.Low battery indication and Auto Power Off
Specifications:
| 8890 | 8890A | 8890B | 8890C |
Accuracy | ±0.3%FSO | ±0.3%FSO | ±2%FSO | ±0.3%FSO |
Repeatability | ±0.2% (Max.+/ -0.5% FSO) | ±0.2% (Max.+/ -0.5% FSO) | ±2% (Max.+/ -0.5% FSO) | ±0.2% (Max.+/ -0.5% FSO) |
Linearity /Hysteresis | ±0.29% FSO | ±0.29% FSO | ±2% FSO | ±0.29% FSO |
Pressure Range | ±5PSI (±138.3 inH2O) | ±2PSI (±55.40 inH2O) | ±0.5PSI (±13.83 inH2O) | ±20PA (±554.0 inH2O) |
Units and Resolution | inH2O | 0.1 | inH2O | 0.01 | inH2O | 0.001 | inH2O | 0.01 |
PA | 0.001 | PA | 0.001 | | | PA | 0.001 |
mbar | 0.1 | mbar | 0.1 | mbar | 0.001 | mbar | 0.01 |
kPa | 0.01 | kPa | 0.01 | Pa | 0.1 | kPa | 0.001 |
inHg | 0.001 | inHg | 0.001 | inHg | 0.0001 | inHg | 0.001 |
mmHg | 0.1 | mmHg | 0.1 | mmHg | 0.001 | mmHg | 0.01 |
ozin2 | 0.01 | ozin2 | 0.01 | | | ozin2 | 0.01 |
ftH2O | 0.01 | ftH2O | 0.001 | | | ftH2O | 0.001 |
cmH2O | 0.1 | cmH2O | 0.1 | cmH2O | 0.001 | cmH2O | 0.01 |
kgcm | 0.001 | kgcm | 0.001 | | | kgcm2 | 0.001 |
bar | 0.001 | bar | 0.001 | | | bar | 0.001 |
