1. ບົດແນະນຳ
This manual provides essential information for the proper installation, operation, and maintenance of your ASHCROFT Vacuum Gauge. This test gauge is designed for precise vacuum measurement, featuring a durable construction suitable for industrial applications.
The gauge has a 2-1/2 inch dial, measures vacuum from 30 inches of Mercury (Hg) to 0, and features a 1/4 inch NPT connection located at the lower back. It is constructed with a 304 stainless steel case, 316 stainless steel socket and tube, and a polycarbonate lens. The gauge is filled with glycerin for dampening and enhanced performance.
ຮູບທີ 1: ASHCROFT Vacuum Gauge. This image displays the front view of the vacuum gauge, highlighting its stainless steel casing, white dial with black markings, and the ASHCROFT DURALIFE branding. The gauge face indicates measurements in psi and notes "Welded AISI 316 tube & socket U.S.A."
2. ຂໍ້ມູນຄວາມປອດໄພ
Always observe standard safety precautions when handling and installing pressure and vacuum gauges. Failure to do so may result in injury or damage to equipment.
- Ensure the system is depressurized before installing or removing the gauge.
- Do not exceed the specified operating range of 30" Hg Vac to 0.
- Verify compatibility of the gauge's wetted parts (316 Stainless Steel) with the process media.
- Protect the gauge from extreme temperatures outside the -40°F to 150°F operating range.
- Handle with care to avoid dropping or impacting the gauge, which can affect accuracy.
3. ການຕິດຕັ້ງແລະການຕິດຕັ້ງ
Proper installation is crucial for accurate readings and long service life.
- ການກະກຽມ: Ensure the connection port on your system is clean and free of debris.
- ການເຊື່ອມຕໍ່: The gauge features a 1/4 inch NPT (National Pipe Taper) connection. Apply appropriate thread sealant (e.g., PTFE tape) to the male threads of the gauge connection.
- ການຕິດຕັ້ງ: Carefully thread the gauge into the system's female NPT port. Tighten using a wrench on the wrench flats of the gauge connection. Do not overtighten or apply torque to the gauge case.
- ປະຖົມນິເທດ: The connection location is lower back, allowing for direct mounting or panel mounting with appropriate accessories (not included). Ensure the dial is easily visible for reading.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
The ASHCROFT Vacuum Gauge provides accurate vacuum measurements within its specified range.
- ການອ່ານເຄື່ອງວັດ: The dial is marked from 30" Hg Vac (full vacuum) to 0 (atmospheric pressure). The smallest graduation is 0.5" Hg, allowing for precise readings.
- ຄວາມຖືກຕ້ອງ: This gauge has an accuracy of +/-1.0% of span, ensuring reliable measurements for test applications.
- ການພິຈາລະນາອຸນຫະພູມ: The gauge is designed to operate effectively within a temperature range of -40°F to 150°F. Operating outside this range may affect accuracy and longevity.
- Glycerin Fill: The glycerin fill dampens pointer pulsation caused by vibration and pressure surges, improving readability and extending the life of the gauge movement.
5. ບໍາລຸງຮັກສາ
Regular maintenance ensures the longevity and accuracy of your vacuum gauge.
- ທໍາຄວາມສະອາດ: Clean the exterior of the gauge, especially the polycarbonate lens, with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the lens or case.
- ການກວດກາ: Periodically inspect the gauge for any signs of damage, such as cracks in the lens, dents in the case, or bent pointer. Check the connection for leaks.
- Recalibration: While designed for long-term accuracy, professional recalibration may be necessary if the gauge is subjected to severe conditions or if accuracy is critical for your application.
- ການເກັບຮັກສາ: When not in use, store the gauge in a clean, dry environment within its operating temperature range.
6. ການແກ້ໄຂບັນຫາ
ໃຫ້ອ້າງອີງເຖິງບັນຫາທົ່ວໄປຕໍ່ໄປນີ້ ແລະ ວິທີແກ້ໄຂທີ່ອາດເປັນໄປໄດ້:
| ບັນຫາ | ສາເຫດທີ່ເປັນໄປໄດ້ | ການແກ້ໄຂ |
|---|---|---|
| ການອ່ານບໍ່ຖືກຕ້ອງ | Gauge exposed to over-vacuum; physical damage; extreme temperature. | Verify operating conditions; inspect for damage; allow gauge to normalize temperature. Consider professional recalibration or replacement. |
| Pointer Fluctuation | System vibration; rapid pressure changes. | The glycerin fill helps dampen this; ensure gauge is securely mounted. If severe, consider a snubber or remote mounting. |
| Leak at Connection | Improperly applied thread sealant; insufficient tightening. | Depressurize system, remove gauge, reapply thread sealant, and re-install, ensuring proper tightening. |
7. ຂໍ້ມູນຈໍາເພາະ
Detailed technical specifications for the ASHCROFT Vacuum Gauge (Model: 251009SW02BXLLVAC).
- ປະເພດເຄື່ອງວັດແທກ: ການທົດສອບ
- ຂະໜາດໜ້າປັດ: 2-1/2 ນິ້ວ
- ຊ່ວງ: 30" Hg Vac to 0
- ຂະໜາດການເຊື່ອມຕໍ່: 1/4" NPT
- ສະຖານທີ່ເຊື່ອມຕໍ່: ກັບຄືນໄປບ່ອນຕ່ໍາ
- Smallest Graduation: 0.5" Hg
- ຄວາມຖືກຕ້ອງ: +/-1.0%
- ວັດສະດຸກໍລະນີ: 304 ສະແຕນເລດ
- ສີກໍລະນີ: ເງິນ
- ວັດສະດຸເຕົ້າສຽບ: 316 ສະແຕນເລດ
- ວັດສະດຸທໍ່: 316 ສະແຕນເລດ
- ຕື່ມຂໍ້ມູນ: ກລີເຊລິນ
- ວັດສະດຸເລນ: ໂພລີຄາບອນ
- Ring Material: ສະແຕນເລດ
- ຊ່ວງອຸນຫະພູມປະຕິບັດການ: -40°F ຫາ 150°F
- ຊຸດ: 1009
- ຂະໜາດຜະລິດຕະພັນ: 3 x 3 x 3 ນິ້ວ
- ນ້ໍາຫນັກລາຍການ: 1 ປອນ
- ປະເທດຕົ້ນກໍາເນີດ: ສະຫະລັດ
- UPC: 094706106517
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
This ASHCROFT Vacuum Gauge comes with a ການຮັບປະກັນຂອງຜູ້ຜະລິດ 5 ປີ. For warranty claims or technical support, please contact ASHCROFT customer service. Retain your proof of purchase for warranty validation.
For further assistance or detailed technical inquiries, please refer to the official ASHCROFT webຫຼື ຕິດຕໍ່ຜູ້ຈຳໜ່າຍທີ່ໄດ້ຮັບອະນຸຍາດຂອງເຂົາເຈົ້າ.
