5.4 Functional Specifications
157
Zero Adjustment (0 ADJ)
Synchronized control
Functions Zeroes out the voltage and current input offset.
Compensation range Voltage: ±15%f.s. or less
Current: ±15%f.s. or less
External current sensor input: ±15%f.s. or less
Compensation operation
time
Approx. 30 sec.
Method Press the 0 ADJ key.
Constraints Zero-adjustment is performed regardless of the current input method.
No measured values are displayed during zero-adjustment.
Integration cannot be started during zero-adjustment.
Zero-adjustment cannot be performed during integration.
Zero-adjustment cannot be performed during display hold or maximum value or mini-
mum value hold operation.
Settings cannot be changed during zero-adjustment.
After zero-adjustment completes, averaging is cleared and restarted.
Functions The timing of calculations; display updates; data updates; integration start, stop, and re-
set events; display hold operation; key lock operation; and zero-adjustment operation for
the slave PW3335, PW3335-01, PW3335-02, PW3335-03, or PW3335-04 is synchro-
nized with the master PW3335, PW3335-01, PW3335-02, PW3335-03, or PW3335-04.
Synchronization with the PW3336, PW3336-01, PW3336-02, PW3336-03, PW3337,
PW3337-01, PW3337-02, and PW3337-03 is also supported.
An error will be displayed if unable to perform synchronized control (and the display will
continue until the error is cleared).
Terminal BNC terminal × 1 (non-isolated)
Terminal name External synchronization terminal (EXT.SYNC)
I/O settings OFF/ In/ OUT
OFF:Synchronized control function off (signals input to the external synchronization ter-
minal (EXT.SYNC) are ignored)
IN: The external synchronization terminal (EXT.SYNC) is set to input, and a dedicated
synchronization signal can be input (slave).
The SYNC. OUT lamp will flash when a synchronization signal is received.
OUT:The external synchronization terminal (EXT.SYNC) is set to output, and a dedicat-
ed synchronization signal can be output (master).
The SYNC. OUT lamp will light up when the terminal is set to OUT.
I/O signal levels High level: +5 V; low level: 0 V (high-speed CMOS level)
Number of units for which
synchronized control can
be performed
Up to 7 slaves per master (total of 8 units including the PW3336/PW3337 series)
Default state Synchronized control: OFF
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