Wise P670 Instruction Manual
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Wise P670 Instruction Manual

Differential pressure gauge
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INSTRUCTION MANUAL
ITEM : DIFFERENTIAL PRESSURE GAUGE
MODEL : P670

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Summary of Contents for Wise P670

  • Page 1 INSTRUCTION MANUAL ITEM : DIFFERENTIAL PRESSURE GAUGE MODEL : P670...
  • Page 2 Instructions for proper and safe operation Please read instructions carefully prior to using the instrument for proper and safe operations. Mishandling could cause device malfunctions and result in disastrous injuries or accidents. WARNING 1. Do not exceed the pressure range allowed. 2.
  • Page 3 CONTENTS 1. Overview 2. Specification and standards 3. Structure and Function 4. Operating Principle 5. Use 6. Operation...
  • Page 4 1. Overview P670 differential pressure gauge is an indicator of precise class by using a bellows, and is designed with the structure that can protect the bellows against excessive pressure, and can be used for measuring the differential pressure of filter, flow meter, etc.
  • Page 5 3. Structure and Function ⑨ ② ⑥ ① ⑤ ③ ⑦ ⑧ ④ HIGH PRESSURE PRESSURE NAME FUNCTION REMARKS Differential pressure Indicate pressure difference between two ① 160mm scale plate points, and flow rate. Adjust zero point according to the mounting ②...
  • Page 6 4. Operating Principle ② ① ③ ④ HIGH HIGH PRESSURE PRESSURE PRESSURE PRESSURE 1) If pressure comes in the pressure transducing part of high pressure side and the pressure transducing part of low pressure side, ① bellows will shrink by differential pressure between two points.
  • Page 7 5. Use 1) To prevent differential gauge measuring set damage, operate the differential gauge along with the 3-way manifold all the time and check both the high and low sides before it is installed on the manifold. 2) The differential gauge should be installed as a higher position than the pressure diffuser during gas differential pressure measurement and lower than it during liquid differential pressure measurement.
  • Page 8 6. OPERATIONS 1) Operation of the three-way valve ① Equalizing Valve ② Low Pressure Valve (LP Valve) ③ High Pressure Valve (HP Valve) Differential pressure gauge Fig. 6-1 P991 Process line High Pressure Pressure (3-WAY VALVE) (1) For initial setup, all the valves must be closed (2) After complete installation, first release Equalizing valve, then replease HP valve at this point check whether the pointer is pointing at "0", if there is an error, must perform zero adjustment.

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