Hioki SS7012 Instruction Manual
SS7012
Instruction Manual
DC SIGNAL SOURCE
Visit us at www.TestEquipmentDepot.com
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Mar. 2015 Revised edition 8
SS7012A981-08 15-03H
EN
* 6 0 0 2 8 7 5 1 8 *
Contents
Introduction .......................................................................... 1
Confirming Package Contents ............................................. 2
Safety Information ................................................................ 3
Operating Precautions ......................................................... 7
Chapter 1 Overview 13
1.1 Product Overview .............................................. 13
1.2 Features ............................................................14
1.3 Names and Functions of Parts .......................... 15
1.4 Sourcing and Measurement Flowchart ............. 23
Chapter 2 Sourcing, Measurement and
Loop test Preparation 25
2.1 Supplying Power ............................................... 25
Installing or Replacing the Batteries .................. 25
Connecting the AC Adapter (Option) ................ 27
2.2 Connecting the Input Cord and the Test Lead .. 28
2.3 Turning the Power On and Off .......................... 33
2.4 Pre-Operation Inspection ..................................34
Chapter 3 Sourcing 37
3.1 Sourcing Example ............................................. 38
3.2 Sourcing Constant Voltage and
Constant Current ...............................................39
3.3 Sourcing Thermoelectromotive Force ............... 43
3.4 0°C Check of the
100 Ω Resistance Thermometer ....................... 50
3.5 Output Monitor Function .................................... 51
3.6 Memory Source Function .................................. 54
Saving setting value to memory ........................ 55
Recall sourcing .................................................. 59
SS7012A981-08
i
ii
Scan sourcing ....................................................61
Initializing setting values ....................................63
3.7 When setting value is flashing ...........................65
Chapter 4 Measurement 67
4.1 Measurement Example ......................................67
4.2 Voltage Measurement and
Current Measurement ........................................68
4.3 Temperature Measurement ...............................71
Chapter 5 Loop Test 75
5.1 Loop Test Overview ...........................................75
5.2 Testing a Distributor (4-20 mA) .........................76
5.3 Testing a two-wire transmitter ...........................79
Chapter 6 Other Function 81
6.1 USB Communication Function ..........................81
Chapter 7 Specifications 83
7.1 General Specifications .......................................83
7.2 Accuracy ............................................................86
Chapter 8 Maintenance and Service 91
8.1 Troubleshooting .................................................91
8.2 Replacing the Circuit Protection Fuse ...............94
8.3 Cleaning ............................................................96
8.4 Error Indication ..................................................97
8.5 Other Indication .................................................97
8.6 When calibrating the instrument ........................98
Index Index 1
Introduction
Introduction
Thank you for purchasing the HIOKI Model SS7012 DC Signal
Source. To obtain maximum performance from the instrument,
please read this manual first, and keep it handy for future reference.
1
Confirming Package Contents
Confirm that these contents are provided.
SS7012 DC Signal Source (1)
Instruction Manual (1)
9168 Input Cord (1 set)
LR6 alkaline batteries (4)
L9170-10 Test lead (1 set)
Spare fuse (1)
2
Confirming Package Contents
When you receive the instrument, inspect it carefully to ensure
that no damage occurred during shipping. In particular, check
the accessories, panel switches, and connectors. If damage is
evident, or if it fails to operate according to the specifications,
contact your dealer or Hioki representative.
Safety Information
Options
9184 Temperature Probe (reference junction compensation)
9380 Carrying Case (Holds main unit only, soft case)
9782 Carrying Case (Holds options, hard case)
9445-02 AC Adapter (For Japan, US, and Canada)
9445-03 AC Adapter (For EU)
SS9000 Communication Package
(Includes USB cable and USB driver software)
Safety Information
This instrument is designed to comply with IEC 61010
Safety Standards, and has been thoroughly tested for
safety prior to shipment. However, mishandling during use
could result in injury or death, as well as damage to the
instrument. Using the instrument in a way not described in
this manual may negate the provided safety features.
Be certain that you understand the instructions and precautions in the manual before use. We disclaim any
responsibility for accidents or injuries not resulting directly
from instrument defects.
3
Safety Information
4
This manual contains information and warnings essential for
safe operation of the instrument and for maintaining it in safe
operating condition. Before using it, be sure to carefully read the
following safety precautions.
Safety Symbols
In the manual, the symbol indicates particularly
important information that the user should read
before using the instrument.
The symbol printed on the instrument indicates
that the user should refer to a corresponding topic in
the manual (marked with the symbol) before
using the relevant function.
Indicates a grounding terminal.
Indicates DC (Direct Current).
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.
The following symbols in this manual indicate the relative importance of cautions and warnings.
Indicates that incorrect operation presents
an extreme hazard that could result in serious injury or death to the user.
Indicates that incorrect operation presents a
significant hazard that could result in serious
injury or death to the user.
Indicates that incorrect operation presents a
possibility of injury to the user or damage to
the instrument.
Indicates advisory items related to performance or correct operation of the instrument.
Symbols for Various Standards
WEEE marking:
This symbol indicates that the electrical and
electronic appliance is put on the EU market
after August 13, 2005, and producers of the
Member States are required to display it on the
appliance under Article 11.2 of Directive 2002/
96/EC (WEEE).
This is a recycle mark established under the
Resource Recycling Promotion Law (only for
Ni-MH
Japan).
This symbol indicates that the product conforms
to regulations set out by the EC Directive.
Other Symbols
Indicates a prohibited action.
Safety Information
5
(p. #)
[ ] The names of setting objects are indicated by
OUTPUT
(Bold char-
acters)
The screen of this instrument displays characters in the following manner.
Indicates the location of reference information.
square brackets [ ].
Bold alphanumeric characters in this manual indicate key labels.
Safety Information
6
Measurement categories
To ensure safe operation of measurement instruments IEC
61010 establishes safety standards for various electrical environments, categorized as CAT II to CAT IV, and called measurement categories.
Primary electrical circuits in equipment connected to an AC
CAT II
CAT III
CAT IV
Using a measurement instrument in an environment designated
with a higher-numbered category than that for which the instrument is rated could result in a severe accident, and must be
carefully avoided.
Use of a measurement instrument that is not CAT-rated in CAT II
to CAT IV measurement applications could result in a severe
accident, and must be carefully avoided.
electrical outlet by a power cord (portable tools, household
appliances, etc.)
CAT II covers directly measuring electrical outlet receptacles.
Primary electrical circuits of heavy equipment (fixed installations) connected directly to the distribution panel, and
feeders from the distribution panel to outlets.
The circuit from the service drop to the service entrance,
and to the power meter and primary overcurrent protection
device (distribution panel).
Operating Precautions
Operating Precautions
Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.
Preliminary Checks
Before using the instrument for the first time, verify that it operates normally to ensure that no damage occurred during storage
or shipping. If you find any damage, contact your dealer or Hioki
representative.
Instrument Installation
Operating temperature and humidity: 0 to 40°C at 80%RH or
less (non-condensating)
Temperature and humidity range for guaranteed accuracy:
23±5°C, 80%RH or less (non-condensating)
Avoid the following locations that could cause an accident or damage
to the instrument.
Exposed to direct
sunlight
Exposed to high temperature
Exposed to liquids
Exposed to high humidity or condensation
Exposed to high levels of particulate dust
In the presence of corrosive or explosive
gases
Exposed to strong
electromagnetic fields
Near electromagnetic
radiators
Near electromagnetic
radiators (e.g., highfrequency induction
heating systems and
IH cooking utensils)
7
Subject to vibration
Correct measurement may be impossible in the presence of strong magnetic fields, such as near transformers and high-current conductors, or in the presence of
strong electromagnetic fields such as near radio transmitters.
Operating Precautions
8
Handling the Instrument
The maximum rated voltage between input terminals and
ground is 30 VAC/ 60 VDC. Attempting to measure voltages
exceeding 30 VAC/ 60 VDC with respect to ground could
damage the instrument and result in personal injury.
• This instrument is designed for safe operation only at low
voltage. Ensure that no more than 60 V is present
between any terminal and ground, and that the potential
difference between any two terminals does not exceed 60
V. The instrument cannot be guaranteed in an overrange
situation, such as due to an inadvertent electric shock or
faulty insulation, and we cannot accept responsibility for
any consequences that might occur from misuse.
• The output terminals and the voltage and current input
terminals (terminals for the standard resistor) are all isolated. Before connecting the terminals, ensure that the
target device will not provide excessive output to, or
require excessive input from, the terminals. The instrument cannot be guaranteed in an overrange situation,
such as due to an inadvertent electric shock or faulty
insulation, and we cannot accept responsibility for any
consequences that might occur from misuse.
• Ensure that the input does not exceed the maximum input
voltage or current to avoid instrument damage, short-circuiting and electric shock resulting from heat building.
• Do not allow the instrument to get wet, and do not take
measurements with wet hands. This may cause an electric shock.
• The case is not hermetically sealed for protection against
explosion, so do not use in a flammable atmosphere.
Operating Precautions
• When the power is turned off, do not apply voltage to the voltage input terminals. Doing so may damage the instrument.
• To avoid damage to the instrument, protect it from physical
shock when transporting and handling. Be especially careful
to avoid physical shock from dropping.
• If this instrument has been vibrated or impacted, restart it
before use.
• Before sourcing or measurement, make sure of the function
position. If current or voltage in excess of sourcing or measurement range is input, the instrument may be damaged.
• Note that the instrument may be damaged if the applied voltage or current exceeds the measurement range.
• If output is impossible when is displayed which indicates
outputting, set to with OUTPUT ON/OFF key and set
output to ON again.
• To avoid corrosion and damage to this instrument from battery
leakage, remove the batteries from the instrument if it is to be
stored for a long time.
To avoid problems with battery operation, remove the
batteries from the instrument if it is to be stored for a
long time.
9
Operating Precautions
10
Handling the Cords
• Before using the instrument, make sure that the insulation on the test lead and input cord is undamaged and
that no bare conductors are improperly exposed. Using
the instrument in such conditions could cause an electric
shock, so contact your dealer or Hioki representative for
repair.
• Use the 9168 Input Cord with DC 28 V or less.
If this level is exceeded, electric shock may occur.
• Always turn both devices OFF when connecting and disconnecting an interface connector. Otherwise, an electric
shock accident may occur.
• To avoid breaking the test lead and input cord, do not bend or
pull them.
• For safety reasons, when taking measurements, only use the
L9170-10 Test lead provided with the instrument.
Operating Precautions
11
Handling the AC Adapter and the Nickel Hydride
Batteries
• Turn the instrument off before connecting the AC adapter
to the instrument and to AC power.
• Use only the supplied Model 9445-02 AC Adapter or
Model 9445-03 AC Adapter. AC adapter input voltage
range is 100 to 240 VAC (with ±10% stability) at 50/60 Hz.
To avoid electrical hazards and damage to the instrument,
do not apply voltage outside of this range.
• To avoid damaging the power cord, grasp the plug, not the
cord, when unplugging it from the power outlet.
The nickel hydride battery is subject to self-discharge.
Be sure to charge the nickel hydride batteries before initial use. If the battery capacity remains very low after
correct recharging, the useful battery life is at an end.
1.1 Product Overview
Two-wire transmitter and
distributor tests (4-20mA)
can be easily performed.
(Loop tests)
Source waveforms can
be freely programmed
through communication with a computer.
13
Overview Chapter 1
1.1 Product Overview
This instrument is a compact DC signal source (calibrator).
It can perform maintenance or loop tests of instrumentation systems and can be operated from a computer via a USB cable.
Furthermore, it can calibrate thermometers and measure DC
voltage and DC current.
1.2 Features
14
1.2 Features
Source function (p.39) (p.43)
Sourcing DC voltage from -25.000 V to +25.000 V (minimum
resolution 100 μV), and DC current from -25.000 mA to
25.000 mA (minimum resolution 1 μA). Sourcing thermoelectromotive force by setting temperature (thermocouples: K, E,
J, T, R, S, B, N; JIS C1602-1995, IEC 584).
Measure function (p.68) (p.71)
Measurement of DC voltage from -28.000 V to +28.000 V
(minimum resolution 100 μV), and of DC current from -
28.000 mA to 28.000 mA (minimum resolution 1 μA). Temperature measurement from -25°C to 80°C with the optional
Model 9184 Temperature Probe.
Loop test (p.75)
The output of this instrument is bipolar and it can sink current. Therefore, loop test in the instrumentation system is
possible.
Output monitor function (p.51)
This function monitors the applied current of the constant
voltage source.
This function monitors the applied voltage of the constant
current source.
This function monitors the reference junction temperature of
the thermoelectromotive force source.
Memory source function (p.54)
Up to 20 units of source data (settings) for each function can
be saved to memory. Settings saved to memory can be
sourced in recall source mode or scan source mode.
AC power is not required for operation
Common LR6 alkaline batteries or nickel hydride batteries
support use in situations where AC power is not available.
Continuous long-term operation
The optional Model 9445-02 AC Adapter or 9445-03 AC
Adapter allows continuous long-term operation.
1.3 Names and Functions of Parts
Front panel
Display
(p.19)
Operation Keys
(p.21)
Ter m ina ls
(p.18)
1.3 Names and Functions of Parts
15
1.3 Names and Functions of Parts
Right side
RJ sensor terminal
Connect the optional Model 9184
Temperature Probe (reference
junction compensation).
(p.30) (p.71)
USB port
The SS7012 can communicate
with a computer via a USB cable.
(p.81)
AC adapter terminal
Connect the optional Model 9445-02 AC
Adapter or 9445-03 AC Adapter.The input
voltage range is 9 V DC±10% and the
adapter has a positive center pin. (p.27)
Power switch
Turns the power for the instrument on or off. (p.33)
: Power switch OFF
: Power switch ON
16
Rear panel
Battery cover
Open this battery cover to install the LR6
alkaline batteries or the nickel hydride batteries. (p.25)
1.3 Names and Functions of Parts
17
18
Termi nals
Voltage input terminal
Inputs voltage for voltage
measurement. Input resistance is about 1 MΩ.
Current input terminal/
Terminal for the standard resistor
Current input
Inputs current for current measurement
function. The SS7012 has built-in input
protection fuse. The input resistance of
current detection and input protection fuse
is about 30 Ω.
Standard resistor
When current measurement function is
off, a 100 Ω standard resistor is connected
for the 0°C check of the 100 Ω standard
resistance thermometer.
Output terminal
When output is on, the setting
value will be output. This terminal is shorted with about 50 kΩ
resistance when output is off.
The SS7012 has built-in output
protection fuse.
1.3 Names and Functions of Parts
1.3 Names and Functions of Parts
Display
Various values are displayed, including functions, source values, measurement values, monitor values, thermocouples, polarity, units, output
status and warnings.
Upper values
Lower values
Upper triangles
Lower triangles
Right side
triangles
19
SOURCE ON OFF
MEASURE
K
EJTRSBN
MONITOR ADJ RMT
C
mA
C
mA
V
V
Indicates values and settings related to source functions.
Indicates that the setting for the source function is
being output.
Indicates that the setting for the source function is
not being output.
K/ E/ J/ T/ R/
S/ B/ N
Indicates the specified thermocouple type.
Indicates values and settings related to measure
functions.
Indicates that the output monitor function has been
set. (p.51)
This is the battery indicator (Battery low warning).
When this indicator starts flashing, either exchange
the batteries or connect the AC adapter.
When this indicator is flashing, output cannot be set
to ON. (If the SS7012 is outputting when the indica-
Flashing of
setting value
tor starts flashing, output continues until the output
is set to OFF.
Furthermore, the accuracy of measurement values
cannot be guaranteed.
The setting value flash when it is not being output.
(p.65) If a setting value is flashing, press the
OUTPUT key to set the output to OFF.
1.3 Names and Functions of Parts
Upper triangles
Lower triangles
Right side
triangles
20
Indicates that the SS7012 is in remote control
mode. The instrument cannot be operated by the
keys. Use the LOCAL key to enable key operation.
If the USB cable is removed when the is displayed, the indicator does not turn off.
Indicates the specified source function.
Upper values Displays setting value for the source functions.
Lower values
Displays the measurement values of the measure
function and the address and sourcing time interval
of the memory source function.
Indicates the specified measure function.
Indicates the specified source mode.
Off : Normal source mode
RECALL : Recall source mode
SCAN : Scan source mode
1.3 Names and Functions of Parts
Operation Keys
21
+/- key
0 ADJ/
LOCAL key
MONITOR/
SKIP key
MEMORY/
ENTER key
MEASURE
FUNCTION
key
Selects the polarity of the output setting
value.
1. Possible to return the display to
"00000" in voltage measurement function ([V:2.5V], [V:25V]), or current mea-
surement function ([A: 25mA]).
2. If pushed while is displayed, the
indicator goes out and local con-
trol is possible.
1. Toggles the measure function and output monitor function. (p.51)
2. When writing to memory in the memory
source function, this key sets a skip
setting. (p.55)
3. When pushed simultaneously with the
MEMORY/ENTER key, toggles the
source function and the memory write
mode of the source function. (p.55)
1. Toggles between the normal source,
recall source, and scan source. (p.59)
(p.61)
2. When writing to memory in the memory
source function, this key confirms the
setting value. (p.55)
3. When pushed simultaneously with the
MONITOR/SKIP key, toggles the
source function and the memory write
mode of the source function. (p.55)
Sets the measure function for the instrument.
1.3 Names and Functions of Parts
22
TC TYPE key
SOURCE
FUNCTION
key
Sets the thermocouple type in the thermoelectromotive force source function
([TC:0°C], [TC:RJ]).
Sets the source function for the instrument.
OUTPUT
ON/OFF key
/ key
ADDRESS
key
INTERVAL
key
Switches the output on or off in the source
function.
This key can be used as the start/stop for
memory source function.
The digit increases or decreases by one
count each time the key is pressed. Press
and hold the key to change the digit continuously.
These are the two / keys on the left
of the arrow key group.
In the memory source function, these keys
specify the address.
These are the two / keys on the right
of the arrow key group.
In the memory source function, these keys
specify the sourcing time interval.
1.4 Sourcing and Measurement Flowchart
1. Inspections before switching on the power and
using the instrument
Connecting the AC Adapter (p.27)
Installing the Batteries (p.25)
Turning the Power On (p.33)
Pre-Operation Inspection (p.34)
2. Sourcing
Constant voltage (p.39)
Constant current (p.39)
Thermoelectromotive force (p.43)
Standard register (100 Ω) (p.50)
Output monitor function (p.51)
Memory source function (p.54)
2. Measurement
Voltage (p.68)
Current (p.68)
Temperature (p.71)
3. Turning the Power Off (p.33)
2. Loop test (p.75)
or
or
1.4 Sourcing and Measurement Flowchart
23
2.1 Supplying Power
25
Sourcing, Measurement and Loop test Preparation Chapter 2
2.1 Supplying Power
Installing or Replacing the Batteries
• Use the common LR6 alkaline batteries or the common
nickel hydride batteries.
• To avoid electric shock, turn off the power switch and disconnect the test leads or input cords from the target
device before replacing the batteries.
• After replacing the batteries, replace the cover before
using the instrument.
• Do not mix old and new batteries, or different types of
batteries. Also, be careful to observe battery polarity during installation. Otherwise, poor performance or damage
from battery leakage could result.
• Battery may explode if mistreated. Do not short-circuit,
disassemble or dispose of in fire. Do not recharge alkaline batteries. Handle and dispose of batteries in accordance with local regulations.
2.1 Supplying Power
26
• Do not use the LR6 alkaline batteries together with the nickel
hydride batteries.
• To avoid corrosion and damage to this instrument from battery
leakage, remove the batteries from the instrument if it is to be
stored for a long time.
• The indicator flashes when the remaining battery
capacity is low. In this case, the instrument's reliability
is not guaranteed. Replace the battery immediately.
• When the nickel hydride batteries have not been used
for a long time and are not repeat charge and discharge, the device may not operate normally. (This
may also occur immediately after purchase.)
• Please use only LR6 alkaline batteries or nickel
hydride (HR6) batteries. Please do not use manganese, oxyride batteries, etc.
Before installing or exchanging batteries, turn the
1.
power switch off ( ).
Open the battery cover and install four batteries with
2.
the correct polarity.
Be sure to close the battery cover.
3.
2.1 Supplying Power
27
Connecting the AC Adapter (Option)
• Turn the instrument off before connecting the AC adapter
to the instrument and to AC power.
• Use only the supplied Model 9445-02 AC Adapter or
Model 9445-03 AC Adapter. AC adapter input voltage
range is 100 to 240 VAC (with ±10% stability) at 50/60 Hz.
To avoid electrical hazards and damage to the instrument,
do not apply voltage outside of this range.
Turn the power switch off ( ).
1.
Connect the 9445-02 AC Adapter or the 9445-03 AC
2.
Adapter output plug to the AC adapter terminal for the
instrument. (The input voltage range is 9 VDC±10%
and the adapter has a positive center pin)
After making sure that the voltage of the power supply
3.
being used matches the supply voltage of the AC
adapter, put the plug in the outlet.
2.2 Connecting the Input Cord and the Test Lead
28
2.2 Connecting the Input Cord and
the Test Lead
The SS7012 has voltage input terminal, current input terminal
(terminal for the standard resistor) and output terminal.
In addition, RJ sensor terminal is provided for temperature measurement.
To prevent an electric shock accident, confirm that the white or
red portion (insulation layer) inside the cable is not exposed. If a
color inside the cable is exposed, do not use the cable.
Removable sleeves are attached to the metal pins at
the ends of the test leads. The test leads can also be
used with the sleeves removed.
Removing and attaching the sleeves
The tips of the metal pins are sharp, so take care not to injure
yourself.
Removing the sleeves
Gently hold the bottom of the sleeves and pull the sleeves off.
Safely store the removed sleeves so as not to lose them.
Attaching the sleeves
Insert the metal pins of the test leads into the holes of the
sleeves, and firmly push them all the way in.
2.2 Connecting the Input Cord and the Test Lead
Voltage measurement
Connect the L9170-10 Test lead to the voltage input terminal.
Connect the red and black connectors to the + and - input terminals,
respectively.
Input only voltage to the voltage input terminal.
L9170-10 Test lead
Current measurement
Connect the L9170-10 Test lead to the current input terminal.
Connect the red and black connectors to the + and - input terminals,
respectively.
Input only current to the current input terminal.
L9170-10 Test lead
(red)
(black)
(red)
(black)
Connecting Method
29
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