5
Separation of the power supply for the 3156 and
the line for the equipment being tested
The power supply voltage for the 3156 does not need to
be changed, even if the supply voltage for the equipment
being tested is different. The difference can be managed
by controlling the line supply voltage for the equipment
being tested. This helps prevent malfunctions due to the
wrong voltage being input for the 3156 power supply.
GP-IB
RS-232C
EXT I/O
Main unit (3156)
power supply
External control through EXT I/O
The start of measurement and the loading of the measuring
conditions can be controlled externally. The evaluation
results, test signals, etc., can also be output externally,
permitting the construction of an automated line.
Input signal
Active low signal
PASS
FAIL
T-FAIL
NT.DCV
INT.GND
Line power supply
100 to 240V (50/60Hz)
1500VA
Contents of EXT I/O
q
Outputs
TEST
MEAS
: Continues to output a low signal during automatic measurement
: Outputs the count when measuring multiple items during
automatic measurement
: Outputs the evaluation result "PASS" for individual items
during automatic measurement
: Outputs the evaluation result "FAIL" for individual items
during automatic measurement
: Continues output even if a FAIL occurs during automatic testing.
: Internal 5V DC output (not insulated from internal circuitry)
: Internal GND output (identical to rack grounded GND level)
Maximum
Voltage input to the EXT.DCV terminal
applied voltage
Voltage input to the EXT.DCV
High level
terminal, or open
Low level
Output signal
Maximum load
voltage
Maximum
output current
0.3V DC or less
Open collector output
24V DC (when not using the
EXT.DCV terminal)
60mA DC per signal
(when low level)
q
Inputs
START
: Starts automatic measurement when low
STOP
: Forcibly ends measurement when low
LOAD (0 to 4): Loads a saved panel (30 panels)
0ADJ
: Zero adjust signal (valid only in ground leak current mode)
EXT.DCV : External power supply input (5V to 24V DC)
EXT.COM : External COM input
In addition to outputting evaluation results for each
measurement item, the T-FAIL output is provided for
continued output after one FAIL during automatic testing.
External control through a PC
Includes RS-232C interface and GP-IB interface as
standard. These can be used to control the functions of
the 3156 through a PC, and to collect measurement
values.
RS-232C
GP-IB
s
RS-232C interface
Transfer method: Start-stop synchronization, full-duplex
Transfer speed : 9600 fixed
Data length
: 8 bits
Stop bit
:1
Parity bit
: None
Delimiter
: CR+LF
Handshaking
: None
XON/XOFF
: Not used
Connector
: D-sub 9-pin male
s
GP-IB interface
Compliant standards: IEEE-488.1 1987,
Refer to IEEE-488.2 1987
Connector
: D-sub 24 pin female
Data printout
Data can be printed out on the optional 9442 Printer by
using the RS-232C interface connector. This is useful
for attaching inspection data, etc.
Printing method:
Thermal serial dot printing
Paper width/printing speed:
112 mm/52.5cps
Power supply:
9443 AC Adapter, or NiMH
battery provided (charge with the 9443; can print
approximately 3000 characters with a full charge)
Dimensions:
Approx. 160(W)×66.5(H)×170 (D) mm
Mass:
Approx. 580g
Printout contents
(The printed items can be selected from among the items listed below.)
q
Measurement date
q
Equipment name
q
Control number
q
Class (mounting section)
q
Network
q
Measurement mode
q
Filter setting
q
Tolerance
q
Maximum value
q
Evaluation result
q
Measured current
(AC, DC, AC+DC, AC peak)
q
Power supply polarity
(normal phase, reverse phase)
9442 Printer
(Optional)
q
Equipment status
(normal, not grounded)
* Connecting the 9442 requires either the 9444 Connecting Cable or the AC adapter.
ASM-SENSOR [ ASM GMBH ]
