Vaisala PTB220 Series Guia do Utilizador descarregar pdf (Página 69)

CHAPTER 7__________________________________________________ADJUSTMENT AND CALIBRATION

VAISALA _________________________________________________________________________ 63

correction ? -0.08 <cr>

P1 3. reading ? 698.71 <cr>

correction ? -0.01 <cr>

P1 4. reading ? 801.12 <cr>

correction ? -0.01 <cr>

P1 5. reading ? 900.61 <cr>

correction ? -0.03 <cr>

P1 6. reading ? 947.42 <cr>

correction ? -0.02 <cr>

P1 7. reading ? 1000.10 <cr>

correction ? -0.04 <cr>

P1 8. reading ? 1099.58 <cr>

correction ? -0.04 <cr>

>mpc on <cr>

Multipoint adj: ON

Reading Correction

499.720 -0.070

599.200 -0.080

698.710 -0.010

801.120 -0.010

900.610 -0.030

947.420 -0.020

1000.100 -0.040

1099.580 -0.040

NOTE

Always remember to return the switch SW4 to write DISABLE

position (OFF).

Calibration

Calibration is considered not to involve any adjustments. During

calibration, the accuracy of the barometer is verified using a suitable

pressure standard and due corrections are then given in the calibration

certificate together with a description of the international traceability

chain.

After having completed the calibration, the user should store the new

valid date of calibration in the memory of the barometer. This can be

done with the CALD command.

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Vaisala PTB220 Series Guia do Utilizador Página 69