User Guide

DigiGauge Digital Pressure Gauge
Instruction Manual
Page 3
Minimum and Maximum Reading Option
The DigiGauge may be fitted with an option which stores the maximum and minimum pressures measured. These pressures may
be displayed or cleared by means of magnetically-operated switches without opening the sealed case.
To display the minimum and maximum pressures : Place a bar magnet on the top right-hand side of the case within the box
marked Min - Max on the instrument label. The DigiGauge display will then alternate between the maximum and minimum values
as long as the magnet is held in place. The maximum pressure is shown after the display message
Hi and the minimum value
follows
Lo.
To reset (clear) the minimum and maximum values : Place a bar magnet on the top left-hand side of the case within the box
marked Min-Max Clear on the instrument label. After approximately 5 seconds the minimum and maximum values will be cleared,
confirmed by the display message HiLo CLrd.
Setup Mode
The gauge has a set-up mode which may be used for the following:-
• Set the full scale pressure range.
• Clear the stored instrument zero value
• Clear the stored instrument linearisation value
Three pushbutton switches, SW5, SW6 and SW7, are used when programming the gauge. To gain access to these switches,
which are located to the right of the display, the bezel and dial must first be removed. The data entered in the setup mode is
stored in non-volatile memory. When entering a value, the currently stored value is recalled from memory and written to the dis-
play.
Entering the setup mode
Hold down the UP and DOWN pushbuttons (SW7 and SW5) for approximately 5 seconds, the gauge will then enter the setup
mode which will be confirmed by the display message SET UP. The pushbuttons should then be released. The SET UP message
will be replaced by the following menu:-
FS - CLr.Z - CLr.L - End.
Press UP (SW7) to advance through the menu. When the required function is displayed, press ENTER (SW6) to select it. The
various functions are described below.
FS : Set the full-scale pressure range
The full-scale pressure range is equal to that of the pressure sensor. It is set during manufacture and should not be changed in
normal operation.
CLr.Z : Clear the display zero value
1. Using the UP pushbutton switch (SW7) scroll through the setup menu until the display shows CLr.Z
2. Move DIL switch SW4 to its 'ON' position
3. Press the ENTER pushbutton (SW6). The display will show the message donE which indicates that the zero value has
now been cleared from the gauge.
4. Return DIL switch SW4 to its 'OFF' position.
CLr.L : Clear the linearisation value
1. Using the UP pushbutton switch (SW7) scroll through the setup menu until the display shows CLr.L
2. Move DIL switch SW3 to its 'ON' position
3. Press the ENTER pushbutton (SW6). The display will show the message donE which indicates that the linearisation
value has now been cleared from the gauge.
4. Return DIL switch SW3 to its 'OFF' position.
End : End setup
Terminates the setup mode of operation and restarts the gauge in the normal measurement mode.