DeltaOHM HD2010UC/A, Руководство по эксплуатации

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HD2010UC/A
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V4.1
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Auto-Power-Off : the instrument is provided with the auto-power-off function that automati-
cally switches it off after 5 minutes if it is in STOP mode and no key has been pressed. Before
switching off, the instrument will make a series of beep: press any key to prevent the instru-
ment shutting off. The function is active if this menu item is "ON". If you set Auto-Power-Off
= OFF, the instrument will not automatically shut off.
In this case the battery symbol will
flash even if batteries are fully charged.
I
NPUT
O
UTPUT
Submenu for the choice of parameters relevant to the instrument inputs and outputs.
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Baud Rate : this parameter and the next ones define the properties of the serial connection.
Selectable baud rate values go from a minimum of 300 to a maximum of 230400 baud. The
higher is the value, the faster is the connection; therefore,
when possible , it is suggested to se-
lect the highest available value to speed up data transfer as much as possible. If the instrument
is connected to a printer with RS232 serial input or with a serial/parallel converter, the value
to be set is the one provided by the printer manufacturer.
WARNING: When you use the serial interface, the communication between instrument
and computer (or printer with serial input) works only if the instrument and PC (or de-
vice) baud rates are the same. Take care of this note when using data transfer programs
requiring a manual configuration of the serial port parameters, such as, i.e. Hyper-
Terminal. The Noise Studio program, combined with the HD2010UC/A, automatically
sets the serial port, so that no action by the operator is required.
•
RS232 Bits : (non-modifiable parameter) number of bits of which transferred data are made
up, the value is 8.
•
RS232 Stop Bits : (non-modifiable parameter) stop bit, the value is 2.
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RS232 Parity : (non-modifiable parameter) parity bit, the value is: none (OFF).
•
Serial Device : identifies the device connected to the serial port.
The connection possibilities are:
ƒ PRINTER: connection to a printer with RS232 input
ƒ RS232: connection to a PC equipped with RS232 port (physical)
ƒ MODEM: connection to a modem with RS232 input (see Connection to a modem
on page 86)
ƒ USB: connection to a PC by USB port (see “CONNECTION TO A PC WITH
USB INTERFACE” on page 88).
ƒ MC connection to HD2010MC optional module for data recording on Secure
Digital memory card (see specific chapter on page 91)
M
EASUREMENTS
The Measurement item includes the acquisition general parameters.
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Input Gain : with Input Gain = 0 the measuring range upper limit equals 140dB, and as much
as the input gain increases the maximum measurable level decreases correspondingly (see
page.94). Select the proper gain according to the level of sound to be measured.
•
Quick Sampling : integration period used to measure reverberation time.
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Integration interval : Once this time has been reached, the instrument automatically switches
to HOLD, interrupting display update. It can be set from a minimum of 1s to a maximum of
99 hours. When continuous recording is activated, the integration time acts like a timer for
data acquisition, stopping automatically the measurement when the time is elapsed. If set to
0s, the timer is disabled and the integration becomes continuous.
•
Report Time : report parameters are integrated over intervals corresponding to the set time.
At the beginning of every interval report parameters are automatically cleared. Report time