GRAPHTEC midi LOGGER GL220 User Manual page 64

CHAPTER 3 Settings and Measurement
Dead zones of trigger and alarm levels
Trigger and alarm levels are provided with a dead zone in order to prevent false detection due to
noise.
Since a dead zone exists as shown in the figure below, the conditions are met at different points
between rising and falling signals.
Therefore, errors in relation to the setting levels are generated as shown in the figure below.
<For Temperatures>
Trigger/alarm setting level
<For Voltages>
Trigger/alarm setting level
(4) USER settings
By switching between users using the USER Setting, you can easily read out different setting conditions
that have been stored
User
Department name
Setting conditions switch Guest, User 1, User 2)
Macro file
name
Macro run
3−32
Dead zone
Conditions met here in rising
An alarm that has occurred is canceled at the following levels:
• For rising setting: Setting value -0.4°C
• For falling setting: Setting value +0.4°C
Dead zone
Conditions met here in rising
Selection item
Text input (when User is selected)
Text input (when User is selected)
Folder MEM, USB1
File Specify a file name.
Name
Press right key to execute.
Setting value +0.3°C
Setting value -0.3°C
Conditions met here in falling
Setting value + 0.5% of range
(For 1 V range, 1 V*0.5%=0.005 V)
Setting value - 0.5% of range
(For 1 V range, 1 V*0.5%=0.005 V)
Conditions met here in falling
Selections available