Honeywell Enraf 977 Instruction Manual page 14

With TSI firmware version A3.0 and higher:
When pressing the arrow right (R) key, a selection can be made out of 4 gauge commands. Scrolling through
the gauge commands is done by the arrow down (D) key or arrow up (U) key, similar as with display scrolling.
The gauge commands are (in this order when scrolled by arrow down key):
• Calibrate Gauge
• Lock Test
• Test Gauge
• Unlock
When the desired gauge command appears on the display, press the arrow right (R) key.
The gauge command will be executed and the Tank Side Indicator returns to the default display.
Note:
If the default display format is A or B, the execution of a gauge command can directly be observed.
To leave the gauge command menu without performing a gauge command is done by pressing the arrow left (L)
key. Then the Tank Side Indicator returns to the default display format.
When the arrow right (R) key is not pressed while in gauge command menu, the Tank Side Indicator will return
to the default display format after approximately 20 seconds.
Page 12 Instruction manual 977 Tank Side Indicator
Operation