YOKOGAWA WT200 User Manual page 17

1.2 Functions
Remote Control Functions (optional)
Communication Functions (Option)
Output Function to an External Plotter and Printer
Other Useful Functions
1-4
External Input
This instrument can be controlled using the following TTL-level, low pulse, logic
signals.
EXT HOLD (when options /DA4, /CMP are installed)
Holds updating of the displayed values or releases the hold status.
EXT TRIG (when option /DA4 is installed)
Updates the displayed values in hold mode.
EXT START (when option /DA4 is installed)
Starts integration.
EXT STOP (when option /DA4 is installed)
Stops integration.
EXT RESET (when option /DA4 is installed)
Resets the integration results.
External Output
This instrument can output the following TTL-level, low pulse, logic signals.
EXT BUSY (when option /DA4 is installed)
Outputs continuously from integration start through integration stop.
Either a GP-IB or RS-232-C interface is provided as standard according to the
custormer's preference. Measured/computed data of up to 14 channels can be output.
It is also possible to control this instrument from the personal computer.
Measured/computed data can be printed on an external plotter or printer using the GP-
IB or RS-232-C interface.
Backup of Setting Parameters
This instrument backs up the setting parameters (including computed values) in case
power is cut off accidentally as a result of a power failure or for any other reason.
Initializing Setting Parameters
This function enables you to reset the setting parameters to initial (factory) settings.
Zero-level compensation
Zero level compensation refers to creating a zero input condition inside the WT200 and
setting the level at that point as the zero level. Zero level compensation must be
performed in order to satisfy the specifications of this instrument. When the
measurement range is changed, zero level compensation is performed automatically.
However, if the measurement range is not changed for a long time, the zero level may
shift due to environmental changes around the instrument. In such case, you can
manually perform zero level compensation.
IM 253421-01E