Delta OHM HD2109.1, Руководство по эксплуатации

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HD2109
- 29 -
V2.4
STORING AND TRANSFERRING DATA TO A PERSONAL COMPUTER
The HD2109.1 and HD2109.2 instruments can be connected to a personal computer via an RS232C
serial port or USB 2.0 port, and exchange data and information through the DeltaLog9 software
running in a Windows operating environment. Both models can send in real time input measured
values directly to a PC, through the PRINT function; the HD2109.2 can also store the values
measured by using the
Logging function (LOG key) in its internal memory. If necessary, the data
stored in the memory can be transferred to a PC later.
T
HE
L
OGGING FUNCTION
-
ONLY FOR
HD2109.2
The Logging function allows the recording up to 18,000 sets of data registered by the probes con-
nected to the inputs. Logging always includes four parameters. Each set of data includes: tempera-
ture in °C or °F, dissolved oxygen concentration (in mg/l), saturation index (in %) and barometric
pressure (in mbar).
The time interval between two consecutive measurements can be set from 1 second to 1 hour. The
logging starts by pressing the LOG key and ends by pressing the same key again: the data memo-
rized in this way form a continuous block of samples.
See the description of the menu items on page 10.
If the automatic turning off option between two recordings (MENU >>
Sleep_Mode_LOG ) is en-
abled, upon pressing the LOG key the instrument logs the first data and turns off. 15 seconds before
the next logging instant, it turns on again to capture the new sample, and then turns off.
The data stored in the memory can be transferred to a PC using the DUMP LOG command: MENU
>> LOG. During data transfer the display shows the message DUMP; to stop the data transfer press
ESC on the instrument or on the PC.
C
LEARING THE MEMORY
-
ONLY FOR
HD2109.2
To clear the memory use the Erase Log function (MENU key >> using ENTER select the
"LOG_DUMP_or_ERAS" item >> SERIAL key).
The instrument starts clearing the internal memory; at the end of the operation, it goes back to nor-
mal display.
NOTES:
•
Data transfer does not cause the memory to be erased; the operation can be repeated as many
times as required.
•
The stored data remain in the memory independently of battery charge conditions.
•
In order to print the data to a parallel interface printer, you must use a parallel-serial adaptor (not
supplied).
•
The direct connection between instrument and printer via a USB connector does not work.
•
Some keys are disabled during logging. The following keys work: ON/OFF, FUNC (Max-Min-
Avg) and SERIAL.
•
The recording started with the display in Max-Min-Avg mode proceeds normally with the actual
measured values. Only the display shows respectively the Max, Min or Avg values.
•
The logging is disabled, if the Auto-HOLD function is enabled.
•
If the logging is started when the display is in REL mode, the relative values are logged.
•
It is possible to activate both the logging (LOG) and direct transfer (PRINT) functions at the
same time.