Delta OHM DO2003, Руководство пользователя

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CALL Max-Min-Avg Key
If you press this key repeatedly, you will recall the
MAX, MIN and AVG (average) values of data
detected by means of the Record function (RCD key). If you press the key again, the instrument
switches to standard measurement. The function is active only if some data have been previously
recorded and if the
Record function is active at that time.
PROG Key
The PROG key let you go through the instrument programs. Press PROG to jump to the next
program. Press ENTER to select a single program. To increase or decrease the current value of a
parameter, use the arrow keys (sub-function of LOG and RCD keys). Press MEM/ENTER to
confirm a parameter; on the contrary, press REL/ESC-Discard to quit without confirming.
Here is a short description of the programs as they appear (same order) when you press PROG:
PRG STD (Program Standard) : this program activates the key secondary functions. For example,
the PRINT/BaudRate key will have the function to set the baud rate and not its PRINT
primary function.
LOG INT (Logging interval) : it represents the interval between two consecutive loggings (LOG)
and the data dump frequency to the RS232C serial port (PRINT). To set a new interval, use
the arrow keys and press ENTER to confirm. The available values are: 1, 2, 5, 10, 15, 30, 60
seconds and 2, 5, 10, 15, 30, 60 minutes.
LOG OPT (Logging options) : when the instrument is in logging mode, it controls the auto power
off between two consecutive loggings. If you press ENTER (LOG OPT >> ENTER), the
word OFF will appear on the display upper line, while the parameter current status will appear
on the lower one: YES or NO.
If the set logging interval is smaller than 1 minute, the instrument will remain always on,
whatever is the value of the LOG OPT parameter. If the interval is bigger than 1 minute, or
equals it, LOG OPT = YES will switch the instrument off during the interval between two
measurements, while LOG OPT = NO will let the instrument always on. Press ENTER to
confirm the parameter selected by means of the arrow keys.
SCT m
2
(Section m
2
): it represents the area of the section used to calculate duct or pipe flow; it is
expressed in m
2
and it goes from .001m
2
(10cm
2
) to 1.999m
2
.
SCT INC
2
(Section inch
2
): it represents the area of the section used to calculate duct or pipe flow,
it is expressed in inch
2
and it goes from 1 inch
2
to 1999 inch
2
. This value is automatically
converted into m
2
by the instrument, thus, if you recall the “area” parameter during flow
calculation, the corresponding value in m
2
will be displayed.
DATE: this is a program to set date and time. From the DATE screen-page, press ENTER: the last
two digits of the year will appear. Use the arrows to select the correct value and press ENTER
to confirm. The month appears (MonTH): use the arrows to select the correct value and press
ENTER to confirm. Day (DAY), hour (HOU) and minute (MIN) ranges will then appear:
when confirming the minute value, the instrument quits the program and returns to the
measurement mode.
SET MEA (Set measures): it provides the list of the variables to be printed (PRINT command), to
be logged (LOG command) and to be displayed (UNIT A and UNIT B keys). The