6
9. Continuous Measurements by the LOCK function
Continuous measurement for approximately 60 minutes is possible by keeping the Scan key pressed while
measuring the surface temperature of the object. For easier "finger-free" operation, set the LOCK function
as follows:
(1) Press the Scan key once, and then press the Mode key three times. The "LOCK" indicator blinks on the
upper right of the LCD.
(2) Press the Scan key once again. The "LOCK" indicator stops blinking and remains lit, showing that the
LOCK function is set.
Once the LOCK function has been set, measurements can be continued for up to approximately 60 minutes.
This operation is useful when monitoring the surface temperature of one object in series. If you want to stop
the measurement within 60 minutes, press the Scan key. Then, the LOCK function is cancelled and the
"LOCK" indicator on the LCD goes off.
10. MAX and MIN Value Display Functions
The PC-8400
Ⅱ
can store the highest and the lowest values among the readings obtained.
⚫
MIN value (lowest temperature) display function
1. To set this function, press the Scan key and then the Mode key to display the "MIN" indicator
(blinking) on the LCD. Press the Scan key once again to complete the setting.
2. To display the MIN value, press the Scan key and hold it (continuous measurement). When you release
the Scan key, the latest MIN value remains displayed on the LCD.
3. To clear this MIN value, press the Scan key again. This returns to the MIN value display function.
4. To cancel the MIN value display function, press the Mode key while the MIN value is being displayed.
⚫
MAX value (highest temperature) display function
1. To set this function, press the Scan key once and then the Mode key twice to display the "MAX"
indicator (blinking) on the LCD. Press the Scan key once again to complete the setting.
2. To display the MAX value, press the Scan key and hold it (continuous measurement).
When you release the Scan key, the latest MAX value remains displayed on the LCD.
3. To clear this MAX value, press the Scan key again. This returns to the MAX value display function.
4. To cancel the MAX value display function, press the Mode key while the MAX value is being
displayed.
- The MIN or MAX value displayed during the MIN/MAX display function is updated whenever a newer
MIN or MAX value is stored while measuring. The PC-8400
Ⅱ
can thus be used as a peak hold meter
(indication of the maximum or minimum temperature measured during a certain time).
- The MAX or MIN value display function that has been set will be cancelled if the automatic power-off
function is activated.
Note
: If the measured temperature exceeds 250°C, the MAX value is stored as "Hi", and if lower than
-61°C, the MIN value is stored as "Lo".
11. Emissivity Setting Function
