OPERATION
2 - 7
CHANGE CURRENT TUBE TYPE [Only in the default
condition where the barcode reader is turned “Off”]:
The
present tube type is displayed e.g., “Benzene?” and can be
altered by pressing [N/-] until the desired tube type is displayed.
Press [Y/+] to accept the displayed tube. With the barcode
reader “Off,” the instrument assumes that the same type of tube
will be used until a different tube type is programmed. It is
important to select the tube type correctly because this
determines the lamp required and the measure wait time.
!! CAUTION !!
If the incorrect tube type is programmed or the Measure
Wait Time is otherwise set too short, it is possible to
underestimate the VOC concentration and thereby cause
overexposure.
This menu item is not displayed when the barcode reader is
enabled (to enable see Section 4.7.9).
BATTERY:
The menu displays the present battery voltage.
Note
: A fully charged battery pack should show 4.8 volts or
higher. When the battery voltage falls below 4.4 volts, a
flashing “Bat” will appear as a warning message. When the
battery voltage falls below 4.2 volts, there are about 20-30
minutes of run time left before the monitor turns off
automatically.
DATE, TIME, TEMP:
This menu displays the current date
(month/day/year), time (24-hour format), and internal unit
temperature in degrees Celsius. For example:
7/16/97 … 9:00 (24 hr format) … 25
°
C ... 77
°
F
