Ametek JOFRA IPI 조정 매뉴얼 - 페이지 4

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Calibration Interval

You should check performance of the IPI at the interval required by

your calibration program. We recommend adjustment when

measurement deviates by more than 75% of the specified accuracy, or

0.04%

Test Equipment

Verification and calibration of the IPI requires pressure and/or vacuum

standards able to produce and indicate pressures from vacuum to the

full-scale range of the unit under test. In order to maintain the specified

accuracy of the IPI, standards should have a TUR of 4:1 or better.

Connections

The IPI uses a 1/4" NPT male connection in the pressure input port.

Various adapters may or may not be needed to connect to the pressure

standard. Always make sure the hose, tubing, and fittings etc have a

rated working pressure at or above the pressure of the unit. Also it is

important that there be no leaks when performing calibration; use Teflon

tape where appropriate.

Entering Calibration Mode:

After you have made your connections, turn the power on while holding

the CONFIG key. Use the arrow keys to enter the password. The

password is 101. If you have entered calibration mode correctly the

display should look as shown below. The pressure value displayed will

be the full-scale value of the indicator.

Procedure:

Screens shown in this manual represent the displays shown with a 500

psi indicator. The IPI will prompt the technician for the appropriate

pressure at each calibration point.

Manual Calibration

CAL MODE

500.00

PSI