AFRISO DIM 20 Instruction Manual - Page 17

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CAL EP

LD FAC

ERROR

DIM 20

Menu 9: Calibrating the maximum end point

Should you notice a deviation of the indicated value in relation to the

maximum end point, the unit can be recalibrated. A suitable refer-

ence pressure is necessary for this task.

Call up menu point "CAL EP".

Press OK.

"CAL EP" starts to blink.

Pressurize the instrument with a reference pressure. This pres-

sure must correspond to the pressure of the maximum end

point.

Press

to read the pressure.

Press OK to memorize the currently displayed signal as the

maximum end point.

Should this configuration lead to a worsening of the original results,

for instance due to lack of a suitable reference pressure, the original

factory calibration as per original order can be re-instated via the

menu 10 "LD FAC".

Menu 10: Loading of factory calibration

Press OK.

Press

to load the factory calibration according to the original

order.

After the loading process, the message "LOADED" appears

briefly on the display followed by "OK".

The unit then exits this menu point automatically.

Checking of calibrated values

Upon exiting the menu the adjusted parameters are checked in rela-

tion to each other and with reference to the basic instrument data. If

the message "OK" appears in the left hand bottom of the display, the

configuration was successful. If the message "ERROR" appears, then

at least one of the adjusted values is outside the permissible range.

This is for instance the case when the Digital Pressure Gauge has a

nominal pressure range of 400 bar and in the menu "DECIMA" four

decimal points were programmed. If the error message appears, the

last adjusted and functionally correct parameters are retained. Dur-

ing the configuration of the unit a conversion of the measuring

ranges (Menus "UPPER" and "LOWER") to the new units takes place

only after exiting the menu system..

Depending on the pressure range and the number of displayable fig-

ures, it may not be possible to use all measurement units.

Operation