Hioki 8860-50, Instruction Manual

Page: 388 / 490

14.1 Connecting External Control Terminals
376
14.1 Connecting External Control Terminals
To avoid electric shock accidents and damage to the instrument, do not
apply voltage over the maximum specified voltage level to the external
control terminals.
I/O terminals Maximum input voltage Terminal type
Input
EXT.SMPL
-2 to 7 V DC
BNC
EXT.TRIG
Terminal
block
PRINT/EXT.IN3
STOP/EXT.IN2
START/EXT.IN1
Open collector
output
TRIG OUT/CAL
-20 to 30 V DC
50 mA max, 200 mW max
Terminal
block
NG/EXT OUT2
GO/EXT OUT1
Output
SYNC.OUT
Do not apply a voltage. BNC
To prevent electric shock accidents and damage to the equipment, always
observe the following precautions when making connections to external
terminal blocks and external connectors.
• Before making connections, turn off the power on the instrument and the
equipment to connect.
• Do not exceed the specified signal levels for signals supplied to external
terminal blocks and external connectors.
• Ensure that devices and systems to be connected to the External Control
terminals are properly isolated.
• The ground pins of external control connectors are not isolated from the instru-
ment’s ground. Connect so that no potential difference arise between external
control connector ground and the ground of the connection object. Failure to
observe this precaution can result in damage to the connection object and the
instrument.
• Do not short circuit the SYNC.OUT jack and the ground of the instrument, or
apply external voltage. Doing so can result in damage to the instrument.
Connecting the SYNC.OUT Jack and the EXT.SMPL Jack (BNC connector)
• When disconnecting BNC connectors, be sure to release the lock before pull-
ing the connectors apart. Forcibly pulling a connector without releasing the
lock, or pulling on the cable, can damage the connector.