Lamtec LT 2 Assembly And Commissioning Manual page 49

4 Technical Description
Display of excess/undershot limit values
Retrieval of limit value settings
The limit values are displayed by means of the softkey designations. When limit value
parameter 930/940/950/960 is activated in the "Service" access level, LV1, LV2, LV3
and LV4 appear on the display, depending on which limit value is currently active.
Exceeded or undershot limits are displayed as follows:
• LV 1 means limit value 1 has been exceeded
• LV 2 means limit value 2 has been undershot
• Press the "diag" (diagnosis) key
Select the required limit value using the cursor keys
The selected limit value is indicated by a border
Limit value has
been selected
• Press ENTER
The limit value setting of the selected limit value is shown in the display, see
screenshot
1. Limit value 3 has been parameterised to the O
2. Switching points:
3. Current O measurement value 6.7 vol.% O
2
4. Possible states:
• enabled Limit value has been triggered
• off Measurement value is in Good range
• acknowledged Exceeded/undershot limit value has already been acknowledged
2
Limit exceeded 10.0 vol.% O
Limit undershot 3.0 vol.% O
2
47
measurement value.
2
2