Unitek Miyachi LW250 Operation, Maintenance And Service Manual page 54

Turning Power ON and OFF (continued)
Turn the key-switch to the ON position. The
display screen will read as shown to the right.
The data fields are as follows:

WATER: Indicates the temperature of
the cooling water. The water tempera-
ture starts rising after you turn on the
control key-switch. It does not rise
when you turn on only the MAIN
POWER switch.

DEIONIZE: Indicates the resistance level of the deionized water. READY or NOT
READY will be displayed according to the resistance level, as follows:
READY:
NOT READY:

WATER TEMPERATURE: Indicates the temperature of the deionized water. LOW,
NORMAL or HIGH will be displayed according to the temperature level, as follows:
LOW:
NORMAL:
HIGH:
Note: Since the deionized water temperature is not fixed when
operation is started, the NORMAL indication is displayed when
the water temperature rises to 27°C (46.4°F). NORMAL is still
indicated even if the deionized water temperature drops to 25°C.

LASER POWER MONITOR: Indicates the state of the power monitor unit sensor.
READY or NOT READY will be displayed according to the state of the power monitor
unit, as follows:
NOT READY:
READY:
990-605 REV B: May, 1997
CHAPTER 6: OPERATING INSTRUCTIONS
Below 3.00 milliohms per cm
Equal to or above 3.00 milliohms per cm
24°C (75.2°F) or below
25°C (77.0°F) to 35°C (95.0°F)
36°C (96.8°F) or above
Warming up
Warmed up
LW250 PULSED Nd: YAG LASER
AUTO-START
KEY-SWITCH ON > COOLER ON >
DEIONIZE
WATER TEMPERATURE
LASER POWER MONITOR (NOT READY)
WATER ° C
cm (READY)
(NORMAL)
6-2