Omega 24 - Manual (Page 13)

OPERATING INSTRUCTIONS
1. DIAGNOSTICS AND ERROR MESSAGES
Unit self-diagnostics provide fault condition readouts which are described below:
PROBLEM:
LIKELY CAUSE:
Blank display, unit does not (1) Improper battery installation.
power-up. Check battery polarity.
(2) Dead battery.
BAT Annunciator. (1) Low battery voltage, install a new
battery. If problem persists, consult factory.
Display reads OPEN. (1) No thermocouple, RTD or thermistor is plugged
into the meter input.
Display reads E1 momentarily. (1) This indicates that an invalid key-
pad entry has been made. Review
keystroke sequence, or consult
manual for input instructions.
Display reads E2 momentarily. (1) Attempt made to activate non-
installed ramp function. NOTE:
RAMP Function enabled on
Models CL25 and CL27 only.
Display reads HI. (1) Meter-mode input-temperature
exceeds rating of selected sensor.
(2) Calibrator-mode keypad-entry
exceeds rating of sensor type.
Display reads LO. (1) Meter-mode input-temperature too
low for accurate measurement.
(2) Calibrator-mode keypad-entry too
low for accurate simulation.
2. INITIAL TURN ON
Turn on the instrument by depressing the ON-OFF keyswitch once (Figure 2). At power-up, the
unit first performs a display test. All segments and annunciators of the liquid crystal (LCD) are
momentarily turned on for visual confirmation by the user (Figure 3).
NOTE: In case of missing or poor-contrast segments, contact factory.
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