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AMS4A051 Hoistman's Panel Specification May 2007
Page 5 of 10
2.1.4 LINE TENSION DISPLAY (D1)
This meter provides a digital display of total line tension.
2.1.5 ZERO DEPTH (SW6)
Pressing this button will reset the depth to 0. Depressing the
button again will reset the depth to the previous setting. The
Zero Depth button will only work when the line speed is zero (i.e.
winch not moving).
2.1.6 + / - SWITCH (SW 7)
This switch is used for different functions. It is used to change the
depth setting in either an up or down direction. The winch must
be stopped before the depth can be set. In menu mode (see
section 3.0) the switch is used to set menu parameters.
2.1.7 APPROACHING SURFACE LED AND ALARM
This LED and an audible alarm is sounded when the depth is less
than 100' (30 m). This is a warning to the hoist operator that they
are approaching surface and should take care to get the
equipment safely out of the well. When the Cancel button is
depressed, the alarm will stop but the LED will continue to blink.
Once the depth reading is greater than 100' (30 m), both the
alarm and the LED will go off.
2.1.8 ENGLISH / METRIC UNITS
The panel can be changed from English to Metric by installing a
jumper across JP1 or JP2 on the main PCB (refer to 6.4.2). The
scale for the incremental tension meter should also be changed.
2.1.9 PROCESSOR
REBOOT
In the event of a panel "lock up" or other malfunction, the
processor in the panel can be rebooted by turning off the panel,
depressing the T-ZERO and T-TEST buttons (SW3 & SW4)
simultaneously then turn the power back on while the buttons are
depressed. When the panel is rebooted, all the menu settings will
be returned to the factory default settings. The tension should be
recalibrated at this time (see section 6.0).
The panel should always be rebooted after new software (eprom)
has been installed.
