ENMET PID-Guard - Manual (Page 12)

PID-G UARD ENMET Corporation
10
5.0 Maintenance
The PID-G UARD maintenance menus that are accessed by pressing the M ENU button and entering a valid access code. The
access code is set at the factory and may be changed by following the access code menu explained in section 5.5.
5.1 Maintenance Menus
C AUTION : Do Not Attempt A Span Procedure Without Calibration Gas Applied to The Sensor; if this is done, the instrument is
forced into a calibration fault mode.
Pushbutton switches control the M ENU and S ELECT functions. The M ENU and S ELECT button locations are indicated on the
display panel, see Figure 3. The M ENU button is used to display the various menu options and make incremental changes to
numbers such as alarm points, calibrations gas, etc. The S ELECT button is used to select that option, set zero or span digit.
To enter the maintenance menu press and hold the M ENU button for 2 to 4 seconds
Table 3 indicates the maintenance menu sequence see Figure 7 for a detailed maintenance menu flow chart.
Table 3: PID-G UARD Maintenance Menus Sequence
Example of Display Function
Normal Display Mode
Measurement of target gas
Press and hold the M ENU button for 2 – 4 seconds to enter the Maintenance Menu
The Power/Fault LED will flash Green – Red to indicate the PID-G UARD is in Maintenance Mode
To exit the maintenance Menu and return to the
Normal Display Mode:
If intended function Press S ELECT button
Press the M ENU button to advance to the Zero procedure
For adjusting Zero:
If intended function Press
S ELECT button
Press the M ENU button to advance to the Span procedure
For adjusting the Span:
Calibration of PID-G UARD
If intended function Press S ELECT button
Press the M ENU button to advance to each Alarm set point procedures
For adjusting the Alarm 1, 2 and 3 set points:
If Intended function Press
S ELECT button
Press the M ENU button to advance the mA Span set point procedure
For adjusting the mA Span set point:
If intended function Press
S ELECT button
Pressing the M ENU button without pressing the S ELECT button will allow you to cycle through the menu options.
You must Press the S ELECT button in order to initiate the desired operation.
5ppm
Exit
Zero
Span
mA Span
Alarm1
Alarm2
Alarm3