Omega HH503 - Manual (Page 9)

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Sec. Minu. Selecting the Time scale
Reading the third displayed (Time) in either second or minute. When the
thermometer turned on, it is set to second. To change the Time scale, press
Sec. Minu. key.
Maximum Time reading is 100 hours. If 100 hours is exceeded, reset Time
to zero and restart.
SET mode (Relative value set, Time set and Hi/Lo Limits value set)
1. Press SET key to enter Relative valuse SET mode (Press ENTER key can
escape relative valuse set mode), REL set mode. = = = =.= is displayed in
main display.
Relative value is entered via overlay numbers, then press overlay ENTER
key, stored the relative value, enter Time set mode.
2. Time set mode, (Press ENTER key can escape Time set mode)
=.= = = : = = is displayed in second and third display. Time (hours, minutes,
seconds) value is entered via overlay numbers, then press overlay ENTER
key. Time start from set time value, enter Hi/Lo Limits value set mode.
3. Hi Limit value set mode, is displayed (Press ENTER key can escape Hi
Limit value set mode), = = = =.= is displayed in main display, Hi Limit value
is entered via overlay numbers, then press overlay ENTER key, stored the
Hi Limit value, enter Lo Limit value set mode (Press ENTER key can escape
Lo Limit value set mode). = = = =.= is displayed in main display, Lo Limit
value is entered via overlay numbers, then press overlay ENTER key,
stored the Lo Limit value and exit SET mode.