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Data type Size in bytes
Recording time and data 5
Heat 6
Volume 4
Standard working time 4
Non-standard working time 4
Additional pulse input 1 10
Additional pulse input 2 10
Additional pulse input 3 10
Additional pulse input 4 10
Error code after failure detection 2
Error code before failure detection 2
CRC for the data 1
Total 72
6. HEAT METER OPERATING GUIDE. LCD
The heat meter is operated with a single push-button and an LCD. The push-button has two functions:
short depress cycles between the successive screens of one menu group; long depress enters or exits
a menu group. If the readings need to be displayed or configured remotely, use the software, interfaces
and other tools from Apator-Powogaz and follow the manuals enclosed with these products.
The display of data on Elf heat meters is divided into five menu groups which correspond to the func-
tionality of the data:
• actual data – group 1
• monthly recording data – group 2
• annual recording data – group 3
• service data – group 4
• test data – group 5
The data from recording in cycle 1 and 2 and from failure recording can only be read via the communi-
cation interface.
---- 01
Press the button repeatedly until the desired group number is displayed with messages.
---- 02
---- 03
---- 04
---- 05
You can switch between the display groups as follows: hold the push-button for approx. 2 seconds until
the group number is displayed. Release the button.
Then press and hold again until the first value of the selected group is displayed.
The successive values in group 1, 4 and 5 (actual, service, test) are displayed by repeatedly pressing
the button.
When switched to display the data in group 2 and 3 (registered data), the displayed values cycle every
2 seconds. The first reading is the message with the number of maximum registrations available in the
group. This message is displayed only once per each access to the data group (it does not repeat in
cycling).
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