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Ashcroft
Ashcroft PT-1 Digital Pressure Indicator
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المعاملات الرئيسية
Measuring range
0.25 inH2O to 10,000 psi via permanently installed PPT-1/PPT-2 pressure modules (single or dual)
Accuracy
From ±0.1% to ±0.025% of span depending on range/module (low-pressure capacitive ±0.1%/±0.06%/±0.07%; medium/high ±0.025%/±0.05%/±0.1%)
Output
RS-232 digital interface; dual-line LCD display (no analog process output)
Supply
110 Vac/60 Hz adapter standard; optional 220 Vac/50 Hz, 100 Vac, NiCd or alkaline pack
Process connection
1/8 NPT female
Wetted parts
PPM1 non-isolated (clean dry gas); PPM2 316 stainless steel media compatible
| المعامل | القيمة |
|---|---|
| Measuring range | 0.25 inH2O to 10,000 psi via permanently installed PPT-1/PPT-2 pressure modules (single or dual) |
| Accuracy | From ±0.1% to ±0.025% of span depending on range/module (low-pressure capacitive ±0.1%/±0.06%/±0.07%; medium/high ±0.025%/±0.05%/±0.1%) |
| Output | RS-232 digital interface; dual-line LCD display (no analog process output) |
| Supply | 110 Vac/60 Hz adapter standard; optional 220 Vac/50 Hz, 100 Vac, NiCd or alkaline pack |
| Process connection | 1/8 NPT female |
| Wetted parts | PPM1 non-isolated (clean dry gas); PPM2 316 stainless steel media compatible |
| Display | 2-line LCD, 0.38 in character height, 16 characters/line; 100 ms update |
| Approvals | NIST-traceable calibration certificate included per pressure module |
| Notes | Specs from Ashcroft PT-1 datasheet Rev E (2023-03-19) and PT Digital Indicator operating manual. Bench-top secondary transfer standard. |
| Resolution | ±0.002% of span (max.) |
| Repeatability | ±0.01% of span (psi ranges and 1–200 inH2O); ±0.02% of span below 1 inH2O |
| Operating Temperature | 32 to 120 °F (0 to 49 °C); compensated 20 to 120 °F |
| Case Material | High-impact ABS, black |