GW Instek GSM-20H10 User manual

Programmable High Precision
DC Source Meter
GSM-20H10
Quick Start Guide
GW INSTEK PART NO. 82SM-20H10M01
ISO-9001 CERTIFIED MANUFACTURER

Copyright Statement
This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

Table of Contents
1
Table of Contents
OVERVIEW ................................................................... 2
Front Panel ............................................................ 3
Rear Panel ..............................................................8
Terminal Connection........................................... 10
BASIC OPERATION ................................................... 16
Preparation .......................................................... 16
Source Function ................................................... 18
Measure Function ................................................ 33
Limit Function ..................................................... 46
Sequence Function............................................... 58
TRIG Function ..................................................... 67
SYSTEM SETTINGS ................................................... 76
Range Limitation ................................................. 76
System Parameters .............................................. 78
Specifications .............................................................. 86
Optional Accessories ........................................... 91

OVERVIEW
2
OVERVIEW
The GSM combines a precise, low-noise, highly stable DC power
supply with a low-noise, high-impedance multimeter. It has 0.012%
basic accuracy with 61/2 digit resolution. At 41/2 digits display
resolution (Medium), the GSM delivers 520 readings/second over
the IEEE-488 bus. At 31/2 digits display resolution (Fast), it can read
up to 2000 readings/second into its internal buffer.
Because of its built-in source function, the GSM can be used to
generate a set of current voltage (I-V) characteristic curves, which is
very useful for semiconductor device and material testing.
It is equivalent to the combination of voltage source, current
source, voltmeter, amperemeter and ohmmeter.
The digital GSM is designed for routine testing and high-speed
production testing applications. In the manufacturing of
components and modules of communication, semiconductor,
computer, automobile and medical industry, GSM is of great
practical valuable for their various characteristics analysis and
production process testing.It is also usually used in testing and R &
D laboratories.

GSM-20H10 Quick Start Guide
3
Front Panel
LCD Display Numberpad and Power
Secondary function key on/off button
USB host port Auxiliary Funtion key Front panel Input/
function key Output terminals
Display & Parameter
Power on
Display
(Source)

OVERVIEW
4
Description
The display is used primarily to program source and
compliance values and display the real measurement
readings. The area is divided as follows.
①Status and Error messages
Status and error messages are displayed
momentarily, which are located on the top of the
display, indicate various states of operation.
②Reading Data/Format
The readback value is displayed with a resolution
of up to 61/2 digits. The number of display digits
can be changed by directly setting Digits or
modifying the refresh Speed.
③Edit the source
Under the reading display area, is used for
programming source value (Vsrc or Isrc) and
compliance (Cmpl) limit.
④Set the parameter
Under the middle horizontal line used for
programming related parameters.
⑤Auxiliary function key
The bottom line is function name of the keys F1 to
F6. Under the main interface, F1 is Source
function, F2 is Measure function, F3 is Limit
function, F4 is Sequence function, F5 is TRIG
function, F6 is System function. In other
interfaces, the definition of function keys is
different.

GSM-20H10 Quick Start Guide
5
Control Panel
Power
standby
switch
Long press for at least 2 seconds to
turn on or turn off the power supply
of the instrument (turn on the AC
power switch on the rear panel first,
and make the GSM standby light
red ), and the light turn to
yellow after turning on the
mathine.
Cancel/Har
dcopy key
Short press C/Pict key to cancel the
chosen setting value.
Long press (2 to 3sec) C/Pict key to
copy current display interface. The
screenshot will be stored to USB flash
disk automatically.
Voltage and
Current
Setting key
Voltage-source (Vsrc)/ Current-
source (Isrc) toggle button. See page
20 for details.
Output key
The Output key turns the output on
or off. The Output key will light up
when the output is on.
On:
Auxiliary
function
key

Under the LCD is the F1 to F6
function button. In different
interfaces, the definition of auxiliary
function key is different.
Direction
keys and
Enter key
The direction keys are used for
parameter and menu selection as
well for fine adjustment of the
current/voltage range settings.

OVERVIEW
6
The Enter key is used to confirm the
selection of any settings or
parameters and to exit after a setting
is complete.
Edit /Lock
key
The instrument must be in the edit
mode to set source and compliance
values.The edit mode is selected by
short pressing the Edit/Lock key.
The editing cursor (marking digit)
appears for the source or compliance
edit. If a value is not edited within 6
seconds, the edit mode is cancelled.
While in the edit mode, the
Edit/Lock key toggles between the
source value, compliance value and
parameters setting.
Long pressing Edit/Lock key is used
to disable all the panel keys except
the Output key.
Pressing the Edit/Lock key for at
least 2 seconds will turn the panel
locked or unlocked.
Number
pad
The number pad is used to enter
various parameters values.
V/ I/ Ω/M, measurement shortcut
keys. These buttons can only operate
in the case of non digital input .V/ I
shortcut keys can operate in Source
and Measure function, Ω/M shortcut
keys only operate in Measure
function.
V: Measure and display the voltage
I: Measure and display the Current

GSM-20H10 Quick Start Guide
7
Ω: Measure and display the Resistor
M: Measure and display the
calculation result
Measurement operation under each
function:
Source: V, I
Measure: V, I, Ω, M
Limit: V, I, Ω, M
Sequence: V, I, Ω, M
NOTE: When measuring resistor
under Sequence, set Ohm source as
Manual.
S/D/R, parameters setting shortcut
keys. These buttons can only operate
in the case of non digital input.
S: Speed setting
D: Digits setting
R: Relative setting
Terminals
Input/Outp
ut
Terminals
(SOURCE)
The middle two terminals are the
Input and Output of the source.
Voltage
Feedback
Terminals
(SENSE)
On both sides are voltage feedback
terminals corresponding to
positive and negative terminals.
These two terminals are used for 4-
Wire output or 4-Wire resistance
measurement

OVERVIEW
8
Rear Panel
AC power switch GPIB port LAN port USB port
AC power socket RS-232 port Rear panel
and fuse Digital I/O Heat sink fan Inputs/Outputs
Terminals
AC power
switch
Power on or power off the main
circuit, GSM-20H10 is in standby
state after pressing I, and the
standby light on the front panel is
red. I->on, O->off
AC input
socket and
fuse case
The AC input accepts 100 to 240±
10%VAC. The frequency is
50Hz/60Hz.
Fuse: 2.0A (slow-blow type).
USB port
USB device port for remote control.