HF scientific Oil Content Monitor - Manual (Page 11)

OCM Rev. 3.9 (1/03) 5
4.0 Becoming Familiar with the Instrument
The user interface of the OCM has been designed with a 4 key Touch Pad and a digital
user display with two rows of display information.
4.1 The Touch Pad
The MODE key is used to cycle between the four modes of the OCM: AUTO
(measurement) mode, CAL 0 ADJ (Zero Adjust Calibration) mode, SETUP
(Instrument Configuration) mode, and CAL (Calibration) mode. The
↵ ↵↵ ↵
key enters
the option (or mode) that is highlighted or chosen. The
t
and
u
arrows are used to scroll
through lists and to increase or decrease settings. Please refer to the Menu Flow Chart
(Figure 8) while becoming familiar with the operation of the OCM.
Note: 1.While in the CAL or SETUP modes the relays are set in the alarm condition.
2. The instrument has an integral time-out feature that automatically returns the
system operation to the AUTO mode from either the CAL or SETUP modes when
more than 5 minutes have passed with no keypad activity.
4.2
The Display
Figure 4 illustrates all the graphics on the user display. The upper row of the display (1)
is used for reporting the oil concentration (in PPM) and to provide user guidance in the
customer settings routine. The lower row of the display (2) is used to communicate error
messages and also to provide user guidance. The display has several status indicators (3),
which indicate the current operation mode of the instrument. Finally, several indicators
around the screen provide guidance when the customer setting routine is being used and
when the calibration routine is being used. Please note that not all of the indications on
this screen will be used at any one time.