Hioki PW3390 - Controlling Integration with External Signals

8.2 Controlling Integration with External Signals
161
8
Chapter 8 Connecting External Devices
The synchronization interface provided by the instrument’s SYNC IN terminal can be used to start, stop,
reset integration, and event via 0 V/5 V logic signals or short/open contact signals.
8.2 Controlling Integration with External
Signals
Synchronization input (IN) 9-pin round connector pin layout and internal circuit
diagram
• Pin 5 (wire color: green) carries an output signal. Never short it with the other pins.
• Be sure to leave all unused pins open.
• Use this functionality with the instrument’s synchronization control setting set to
“Master.”
• To start or stop integration, reset integration data, or perform event hold operation,
display the Measurement screen. These operations cannot be performed on the Set-
tings screen or the File Operation screen.
Provide a device that allocates functionality to pin numbers as follows to control the instrument.
To connect the device to the instrument, cut off the 9683 Connection Cable’s OUT connector and
connect its internal wires to the control device, referring to their colors.
Pin
number
Wire color Functionality
1Brown
Data reset
The integration value is reset when this pin is low for an interval of at least 40 ms.
This operation is valid only while integration is stopped.
2
Red
Integration start/stop
Integration starts when this pin changes from high (5 V or open) to low (0V or shorted). Integration stops
when this pin changes from low to high.
3
Orange
Unused
4
Yellow
Event
When this pin is kept low for an interval of at least 40 ms, it operates in the same manner as the event
set as the synchronization control function’s synchronization event.
See "Instrument Settings for Synchronous Measurement" (p. 159)
5
Green
Unused
6
Blue
Unused
7
Purple
Connect to ground (GND).
8
Gray
Connect to ground (GND).
9
-
Not present
Output terminal
GND
10 k
+5 V
100 pF
Input terminal
+5 V
10 k