RS PRO RSSM-20H10 User manual

:
rspro.com
RSSM-20H10
2602861
Quick Start Guide
Stock number
EN

2 rspro.com 2
Limited Warranty
This product is warranted to the original purchaser against defects in
material and workmanship for 3 years from the date of purchase. During this
warranty period, RS PRO will, at its option, replace or repair the defective
unit, subject to verification of the defect or malfunction. This warranty does
not cover fuses, disposable batteries, or damage from abuse, neglect,
accident, unauthorized repair, alteration, contamination, or abnormal
conditions of operation or handling. Any implied warranties arising out of the
sale of this product, including but not limited to implied warranties of
merchantability and fitness for a particular purpose, are limited to the above.
RS PRO shall not be liable for loss of use of the instrument or other
incidental or consequential damages, expenses, or economic loss, orfor any
claim or claims for such damage, expense or economic loss. Some states or
countries laws vary, so the above limitations or exclusions may not apply to
you. For full terms and conditions, refer to the RS PRO website.
This quick start guide contains proprietary information, which is protected by
copyright.All rights are reserved. No part of this quick start guide may be
photocopied, reproduced or translated to another language without prior
written consent.
The information in this quick start guide was correct at the time of printing.
However we continue to improve our products and therefore reserve the
right to change the specifications, equipment, and maintenance procedures
at any time without notice.

3
SAFETY INSTRUCTIONS
Safety Symbols
These safety symbols may appear in the user manual or on the instrument.
Warning
Warning: Identifies conditions or practices that could result
in injury or loss of life.
Caution
Caution: Identifies conditions or practices that could result
in damage to the instrument or to other properties.
DANGER High Voltage
Attention Refer to the Manual
Do not dispose electronic equipment as unsorted municipal
waste. Please use a separate collection facility or contact
the supplier from which this instrument was purchased.

4 rspro.com 4
Power Cord for the United Kingdom
When using the instrument in the United Kingdom, make sure the power
cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons.
WARNING: THIS APPLIANCE MUST BE EARTHED IMPORTANT:
The wires in this lead are coloured in accordance with the following code:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
As the colours of the wires in main leads may not correspond with the coloured marking
identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the Earth terminal
marked with either the letter E, the earth symbol or coloured Green/Green &
Yellow.
The wire which is coloured Blue must be connected to the terminal which is marked
with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal marked with the
letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment or contact the supplier.
This cable/appliance should be protected by a suitably rated and approved HBC mains
fuse: refer to the rating information on the equipment and/or user instructions for details.
As a guide, a cable of 0.75mm2should be protected by a 3A or 5A fuse. Larger
conductors would normally require 13A types, depending on the connection method
used.
Any exposed wiring from a cable, plug or connection that is engaged in a live socket is
extremely hazardous. If a cable or plug is deemed hazardous, turn off the mains power
and remove the cable, any fuses and fuse assemblies. All hazardous wiring must be
immediately destroyed and replaced in accordance to the above standard.

5
GETTING STARTED
Main Features
Features
•Low noise, the speed of fan is controlled by thermostatic.
•Compact, meets the 2U height and 1/2Rack width
requirement.
•4.3 inch TFT LCD display.
•Constant voltage and constant current operation (CV/CC).
•Front and Rear output control key (FRONT/REAR).
•Digital voltage and current settings by number pad.
•Alarm buzzer (BEEP).
•Key lock function (LOCK).
Additional
•Source-measure sweep capabilities (Linear and
Logarithmic staircase sweeps, source sweep list of up to
2,500 points, memory sweep of up to 100 instrument
setups).
•6-wire Ω measurement with programmable I-source or
V-source.
•4-quadrant source and sink operation.
•Up to 11 stages of limit testing with a built-in comparator for
pass/fail testing.
•Digital I/O interface for component handler.
•Five built-in math expressions, up to five user-defined math
expressions (remote command only).
•Reading and setup storage, up to 2,500 readings and six
storage area (four user settings, two factory defaults) can
be stored and recalled.

6 rspro.com 6
Interface
•USB remote control.
•RS-232 remote control.
•GPIB remote control.
•LAN remote control.

7
Appearance
Front Panel Overview
Description
1. Funtion keys
2. Front input/ output terminals
3. Arrow keys
4. Standby power button
5. Numeric pad and secondary
function key
6. LCD
7. USB host port
8. Auxiliary Function keys
LO HI
250Vpk
250Vpk5Vpk 5Vpk
Output
Enter
0/M
1/ W
4/I
7
6
3
/
/
/
V9/S
D
R
2
5
8
/
DC Source Meter
RSSM-20H10
RSSM-20H10
12
4
56
78
3
Source Measure Unit

8 rspro.com 8
Rear Panel Overview
80 AX.
50/60 Hz
100-2 40 VA C
SLOWB LO W
LIN USE
T2.0 50 V
GPIB WARNING
RS232
LAN
SENSE
4W
INPUT/
OUTPUT GUARD
250V
PEAK
5V
PEAK
250V
PEAK
5V
PEAK
5V
PEAK
250Vpk
LO
SENSE
V.W
65
34
87
12
Description
1. Main power switch
2. GPIB port
3. LAN port
4. USB port
5. Rear input/ output terminals
6. Heat sink fan
7. Digital I/O port
8. AC input socket and line fuse

9
START UP
Connect the AC power cord
Checking the
AC Voltage
Before the power is turned on, confirm that the input power
supply meets the following conditions:
100-240VAC ±10%, 50Hz/60Hz .Check to be sure the
operating voltage in your area is compatible. RSSM-20H10
can automatically detect and display the power line
frequency (if the wrong power line frequency is displayed,
you can set it manually)
Connecting
the AC power
cord
The fuse is a 2.0A slow-blow fuse. Confirm that
the fuse is of the correct type and rating before
connecting the power cord.
1. Before plugging in the power cord, make
sure the main power switch on the rear
panel is on its off (O) position.
2. Connect the female end of the supplied
power cord to the AC receptacle on the rear
panel.
Caution The power cord supplied with RSSM-20H10 contains a
separate ground for use with grounded outlets. When proper
connections are made, instrument chassis is connected to
power line ground through the ground wire in the power cord.
Failure to use grounding may cause personal injury or death
due to electric shock.

10 rspro.com 10
Turning the Power on
Turn on the
main power
switch
Turn on the main power switch on rear panel. The
RSSM-20H10 is in standby mode after the main
power switch is turned on, and the standby power
switch on the front panel is lit in red
Turn on the
standby
power switch
Long press the standby power switch for at least 2 seconds,
and the standby power switch turns yellow .
Power-up
sequence On power-up, the RSSM-20H10 performs self-tests on its EPROM and RAM. If a failure is detected, the instrument
momentarily displays an error message, and the ERR
annunciator turns on
If the instrument passes self-tests, the line frequency will be
displayed (If the wrong frequency is displayed, it can be set
manually as covered below). After the power-up sequence,
the instrument goes to its normal display state with the Output
off (Output indicator light off). With the output off, the OFF
message is displayed, and dashes replace the reading.
Turning the Power off
Turn off the
standby
power switch
Long press the standby power switch for at least 2 seconds,
and the standby power switch turns red .
Turn off the
main power
switch
Turn off the main power switch on the rear panel.

11
SPECIFICATIONS
The specifications apply under thefollowing conditions: The RSSM-20H10 is
powered on for at least 30 minutes, within +20°C-+30°C.
General Specifications
Maximum
Voltage
±210V
Current
±1.05A
Power
22W
Voltage Resolution
1uV
Current Resolution
10pA
DC Voltage
Source
Output Voltage
±21V/ ±1.05A, ±210V/±105 mA
Current Limit
Min. 0.1% of range
Programming
Resolution
1uV, ±200.000mV range
10uV, ±2.00000V range
100uV, ±20.0000V range
1mV, ±200.000V range
Programming
Accuracy
±(0.02%+600uV), ±200.000mV range
±(0.02%+600uV), ±2.00000V range
±(0.02%+2.4mV), ±20.0000V range
±(0.02%+24mV), ±200.000V range
Load Regulation
0.01% of range + 100uV
Line Regulation
0.01% of range
Overshoot
<0.1% typical (full scale step, resistive
load,10mA range)
Recovery Time
(1000% Load Change)
<250us (within 0.1% plus load
regulation errors, 1A and 100mA
compliance.)
Ripple and Noise
4mV rms (20Hz~ 1MHz)
10mVpp (20Hz~ 1MHz)

12 rspro.com 12
Temperature
Coefficient
(0°–18°C & 28°–50°C)
±(0.15 x accuracy specification)/°C
DC Current
Source
Output Current
±1.05A /±21V, ±105 mA /±210V
Voltage Limit
Min. 0.1% of range
Programmed Source
Resolution
10pA, ±1.00000uA range
100pA, ±10.0000uA range
1nA, ±100.000uA range
10nA, ±1.00000mA range
100nA, ±10.00000mA range
1uA, ±100.000mA range
10uA, ±1.00000A range
Programmed Source
Accuracy
±(0.035%+600pA), ±1.00000uA range
±(0.033%+2nA), ±10.0000uA range
±(0.031%+20nA), ±100.000uA range
±(0.034%+200nA),±1.00000mA range
±(0.045%+2uA), ±10.00000mA range
±(0.066%+20uA), ±100.000mA range
±(0.27%+900uA), ±1.00000A range
Load Regulation
0.01% of range + 100pA
Line Regulation
0.01% of range
Overshoot
<0.1% typical (1mA step, RL = 10kΩ,
20V range).
Temperature
Coefficient
(0°–18°C & 28°–50°C)
±(0.15 x accuracy specification)/°C
Source
General
Output Settling Time
100µs typical Time
Output Rise Time
(±30%)
300µs, 200V range, 100mA
compliance.
150µs, 20V range, 100mA
compliance.
DC Floating Voltage
Output can be floated up to ±250VDC
Remote Sense
Up to 1V drop per load lead.
ComplianceAccuracy
Add 0.3% of range and ±0.02% of
reading to base specification.

13
Range Change
Overshoot
Adjacent range changes between
200mV, 2V and 20V ranges, 100mV
typical.
Minimum Compliance
value
0.1% of range
Command Processing
Time
Auto range On:10ms.
Auto range Off:7ms.
Measurement
Voltage
Input Resistance
>10 GΩ
Measurement
Resolution
1uV, ±200.000mV range
10uV, ±2.00000V range
100uV, ±20.0000V range
1mV, ±200.000V range
Measurement
Accuracy
±(0.012%+300uV), ±200.000mV
range
±(0.012%+300uV), ±2.00000V range
±(0.015%+1.5mV), ±20.0000V range
±(0.015%+10mV), ±200.000V range
Temperature
Coefficient
(0°–18°C & 28°–50°C)
±(0.15 x accuracy specification)/°C
Storage
environment
Temperature: -10˚C ~ 70˚C
Humidity: ≤70%
Power input
AC 100V/120V/220V/230V±10%, 50/60Hz
Consumption
80W
Dimensions
214 (W) x 86 (H) x 356.5 (D) mm
Weight
Approx. 4.8kg
For other detailed specification about RSSM-20H10, please refer to the
RSSM-20H10 user manual.

14 rspro.com 14
EC Declaration of Conformity
We declare that the CE marking mentioned product satisfies all the
technical relations application to the product within the scope of council:
Directive: EMC; LVD; WEEE; RoHS
The product is in conformity with the following standards or other normative
documents:
◎EMC 
EN 61326-1
Electrical equipment for measurement, control and
laboratory use –– EMC requirements
Conducted & Radiated Emission
EN 55011/ EN 55032
Electrical Fast Transients
EN 61000-4-4
Current Harmonics
EN 61000-3-2/ EN 61000-3-12
Surge Immunity
EN 61000-4-5
Voltage Fluctuations
EN 61000-3-3/ EN 61000-3-11
Conducted Susceptibility
EN 61000-4-6
Electrostatic Discharge
EN 61000-4-2
Power Frequency Magnetic Field
EN 61000-4-8
Radiated Immunity
EN 61000-4-3
Voltage Dip/ Interruption
EN 61000-4-11/ EN 61000-4-34
◎Safety
EN 61010-1 Safety requirements for electrical equipment for
measurement, control, and laboratory use - Part 1:
General requirements

15
Africa
RS Components SA
P.O. Box 12182, Vorna Valley 1686
20 Indianapolis Street, Kyalami Business Park
Kyalami, Midrand, South Africa
Asia
RS Components Ltd.
Suite 1601, Level 16, Tower 1, Kowloon Commerce Centre,
51 Kwai Cheong Road, Kwai Chung, Hong Kong
China
RS Components Ltd.
Suite 23 A-C, East Sea Business Centre Phase 2
NO. 618 Yan’an Eastern Road, Shanghai, 200001, China
Europe
RS Components Ltd.
PO Box 99, Corby, Northants NN17 9RS
United Kingdom
Japan
RS Components Ltd.
West Tower (12th Floor), Yokohama Business Park,
134 Godocho, Hodogaya, Yokohama,
Kanagawa 240-0005 Japan
North America
Allied Electronics
7151 Jack Newell Blvd. S. Fort Worth, Texas 76118
U.S.A.
South America
RS Componentes Electrónicos Limitada
Av. Pdte. Eduardo Frei M. 6001-71, Centro Empresas El Cortijo
Conchali, Santiago, Chile