Olympus 27MG, Руководство пользователя, Страница: 44 / 98

DMTA-10043-01EN, Rev. C, July 2016
Chapter 5 36
5.2 Transducer Zero Compensation
This step must be done whenever the message Do ‑‑ and the DO ZERO flag are
displayed (see Figure 5-1 on page 36).
Figure 5 ‑ 1 The Do ‑‑ screen
To do the transducer zero compensation, wipe any couplant from the transducer face,
and press
[2
nd
F] , [CAL ZERO] (Do ‑ ZERO) . The gage will momentarily display the
zero calibration value and then automatically go into measurement mode. When
measurements are being made on surfaces that are significantly above or below room
temperature,
[2
nd
F] , [CAL ZERO] (Do ‑ ZERO) should be pressed to compensate for
any temperature changes in the transducer.
5.3 Velocity and Zero Calibration
The material velocity and zero calibration procedures may be combined using a thick
and a thin calibration block of the same material.
1. Update the transducer zero compensation by wiping the transducer face and
pressing
[2
nd
F] , [CAL ZERO] (Do ‑ ZERO) or [2
nd
F] , [CAL
Ø
] (Do
Ø
) .
2. Couple the transducer to the thick calibration block.
3. Press [CAL VEL] or [CAL
n
] .
4. When the thickness reading is stable, press [ENTER] or [P] .