Follett REF20-LB Installation, Operation And Service Manual page 12

Information Logs
§ All available graphs, data logs and event logs are accessed through the
Information Logs function . The home screen in the Information Logs
section displays the product (P4) temperature graph with one week's
data . Date and time information is displayed on the horizontal axis .
§ This unit comes factory set to display only the product temperature (P4)
on the graph . All of the probes can be viewed on the graph if desired .
Probes can be added to the graph through the advanced setting under
DATALOG . P1 and P5( if equipped) can be added by selecting the probe
and changing the parameter from No to Yes . The selected probe will now
display on the graph .
– P1 control, P4 (Top Probe), P5 (Bottom Probe)
§ Zoom in (+) or Zoom out (–) on an event/temperature on the home
screen will change the time scale .
§ Using the left and right arrows below the graph will scroll the graph . All
the stored temperature data on the graph is viewable .
§ Temperature Log – to display a chronological listing of logged
temperatures (latest logged temperature will display first), touch the
Temperature Log label to the left of the screen . Use the UP and
DOWN arrows to the right of the screen to scroll through the logged
temperatures .
§ Event Log – to display a chronological listing of events (including errors,
alarms and alerts), touch the Event Log label to the left of the screen .
Use the UP and DOWN arrows to the right of the screen to scroll
through the logged temperatures .
Data logging
§ The controller is capable of storing up to 50,000 readings per probe .
The factory setting for the sample rate is every 15 minutes, which will
provide enough storage for 520 days . The sample rate can be change
to provide data logging for a longer or shorter time interval by changing
the Sample Rate (Min) in the advanced settings menu . 0 = off and 360
minutes maximum .
12
Fig. 18
P3 HIGH 41.5 F
P1 LOW 35.1 F
+ Zoom in
(1 - 10) 3
- Zoom out
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ON OFF
Options
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Event log
Temperature log
20130101
Fig. 19
Date Time Product
P3 HIGH 41.5 F
3/1/13 12:15AM 42.2F
3/1/13 12:30AM 41.1F
P1 LOW 35.1 F
3/1/13 12:45AM 40.3F
3/1/13 01:00AM 39.4F
+ Zoom in + Zoom in 3/1/13 01:15AM 38.5F
3/1/13 01:30AM 38.6F
3/1/13 01:45AM 39.7F
(1 - 10) 3
3/1/13 02:00AM 39.8F
- Zoom out - Zoom out
3/1/13 02:15AM 39.9F
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3/1/13 02:30AM 40.0F
ON 3/1/13 02:45AM OFF 41.9F
Options Options
3/1/13 03:00AM 41.8F
3/1/13 03:15AM 40.7F
i
3/1/13 03:30AM 40.0F
3/1/13 03:45AM 41.7F
Event log
Event log
3/1/13 04:00AM 41.9F
3/1/13 04:15AM 40.4F
3/1/13 04:30AM 40.5F
Temperature log Temperature log
3/1/13 04:45AM 42.0F
20130101 3/1/13 05:00AM 41.9F
3/1/13 05:15AM 41.8F
3/1/13 05:30AM 41.7F
3/1/13 03:45AM 40.7F
3/1/13 06:00AM 40.8F
3/1/13 03:15AM 40.9F
Fig. 20
Event Description Time
P3 HIGH 41.5 F
Error Out of temperature 2:28PM
Verified 2:30PM
P1 LOW 35.1 F
Back in temperature 2:35PM
+ Zoom in + Zoom in
Alert Door open 4:55PM
(1 - 10) Door closed 3 4:56PM
- Zoom out - Zoom out
i
Error Door open alarm 5:00PM
ON OFF
Verified 5:05PM
Options Options
Error Power failure 7:00PM
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Power restored 7:10PM
Event log Graph
Verified 7:20PM
Temperature log Temperature log Error Out of temperature 2:28PM
20130101 Verified 2:30PM
Back in temperature 2:35PM
01134592 – REF20/25 LB, PH, BB
38.4 F
Advanced Settings
20130201
38.4 F
RTD 1
41.1F
41.0F
39.9F
39.8F
39.8F
39.7F
39.8F
39.9F
39.8F
39.7F
39.6F
39.5F
39.6F
39.7F
39.8F
39.9F
39.6F
39.7F
Advanced Settings
39.8F
39.9F 20130201
39.6F
39.7F
39.8F
39.9F
39.6F
38.4 F
Date
20130116
20130116
20130116
20130116
20130116
20130116
20130116
20130116
20130116
20130116
Advanced Settings
20130116
20130116 20130201
20130116