User Manual
ScanLog 96 Pen Drive Version
3
BASIC OPERATION
Section 2
POWER-UP
Upon switching on the power to the unit, the display shows the following information for approximately 4 seconds.
After the power-up display information, the instrument starts showing the process value(s) for Single / Dual Channels. This is
the MAIN Display Mode that shall be used most often.
MAIN DISPLAY MODE
This is the default display mode. This mode actually comprises of 4 different screens providing different information. The 4
screens are described below. Use Enter key (press and release) to switch from one screen to the next. The last screen rolls
back to the first screen. The multiple information within a selected screen can be viewed using UP / DOWN keys.
Process Value Screen
This is the default screen upon entering the Main Display Mode. The Upper Row shows the Channel Name and the Lower Row
shows the corresponding Process Value along with user set Units as shown below.
Boiler Pressure
2.1 PSI
Channel Name
Process Value
Units
In case of process value error, the Lower Row indicates the type of error in place of process value and units. The various errors
and the respective causes are listed in Table 2.1.
Table 2.1
Process Value above Max. Range
Process Value below Min. Range
Error Message
Cause
Thermocouple / RTD broken
Sensor Open
Under Range
Over Range
In case of Dual Channel, the channel-wise process value indication update depends upon the selected Auto / Manual scan
mode. The scan mode can be toggled between Auto and Manual by holding the ENTER key pressed for approximately 5
Seconds. The front panel LED indicator glows ON in Auto mode and remains OFF in manual mode. The channel update rate in
Auto mode depends upon the set value (1 to 99 Sec.) for the parameter ‘Scan Rate’. In Manual mode, the channels can
only
be scrolled using UP and DOWN keys. However, in Auto Mode though the channels are automatically scrolled with set
interval, the UP/DOWN Keys can still be used for quick manual scrolling through channels.
Alarm Status Information
Screen
There are up to 4 soft Alarms (AL1, AL2, AL3 and AL4) provided for each channel. If any one or more set Alarms for a channel
is active, the channel is said to be under Alarm condition. The channel names under Alarm condition keep flashing on the
Upper Row in Process Value screen.
The complete Alarm status information for the channels under Alarm condition is available on this Screen. For example; If
Alarm1 (AL1) and Alarm3 (AL3) of a channel named ‘Boiler Pressure’ is active then the screen displays the following
information.
ScanLog 96
Single
PD
1.0.1.0
Model Name
Channels
Pen-Drive Interface
Firmware Version
