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Dụng Cụ Đo Áp Suất Series HM28
| Model | : | SERIES HM28 |
| Manufacturer | : | DWYER |
| Origin | : | USA |
| Pressure Connection | : | Hose; 4/6 mm or 1/8" NPT. |
| Accuracy | : |
(Includes linearity, hysteresis, and repeatability): per order code. |
| Measuring Media | : | Instrument air or inert gases. For HM28G3XXXXX, any material compatible with 18/8 stainless steel. |
| Temperature Limits | : | 23 to 122°F (-5 to 50°C). |
| Storage Temperature | : | -4 to 140°F (-20 to 60°C) |
| Humidity | : | 30 to 95% rH, non-condensing. |
| Display | : | 2 line, 16 character, dot matrix LCD, with switchable display sizes. |
| Battery | : | 9V alkaline (included). Can operate from external power supply of 7 to 14 VDC. |
| Current Consumption | : | <9 mA. |
| Memory | : | 964 measured values. Recording intervals adjustable from manual, 1, 5, 10, 20, 30 seconds, 1, 2, 3, 5, 10, 30, 60 minutes |
| Case Protection | : | IP54 |
| Case Dimensions | : | 6 x 3.27 x 1.34 in (152 x 83 x 34 mm). |
| Weight | : | 9.5 oz (270 g). |
| Maximum Measurement Rates | : | Stand alone: 2-1/2 readings/sec (0.1% and 0.05% ratings), 5 readings/sec (0.2% rating). Output to RS-232:20 measurements/sec (0.2% rating). 10 measurements/sec (0.1% and 0.05% ratings). |
| RS-232 Baud Rate | : | Adjustable, 1200, 2400, 4800, or 9600 baud. |
| Agency Approvals | : | CE |
| ACCESSORIES | ||
| HM28-0, 1/8" NPT Adaptor 1 piece | ||
| HM28-1, Communication Software & Cable | ||
| HM28-2, Universal Power Adaptor | ||
| Part Number | Features |
| Error limit 0.2% F.S. for gage, underpressure and different pressure | |
|
HM28D3B10000 |
0-10 in w.c. (2.5 kPa) 0-28 in w.c. (7 kPa) 0-120 in w.c. (30 kPa) 0-14.5 psi (100 kPa) |
| Error limit 0.05% F.S. for gage, underpressure and differential pressure | |
| HM28D3C30000 HM28D3F30000 HM28D3H30000 HM28D3K30000 HM28D3M31000 |
0-28 in w.c. (7 kPa) 0-120 in w.c. (30 kPa) 0-14.5 psi (100 kPa) 0-100 psi (700 kPa) 0-245 psi (1700 kPa) |
| For Absolute pressure | |
| HM28A3l10000 | 0-15.9 psia (0.2% F.S. (110 kPa abs) |
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