Allwin CS2676FX User manual

CS2676FX Insulation Resistance Tester User Manual Ver:1.1
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User Manual
CS2676FX Insulation Resistance Tester
The maximum output voltage of the tester can be up to 1kV.
* Any incorrect operation maybe cause death.
* Before operation, please read notice before
use carefully of chapter2.
* This manual should be beside the operator.

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Explanation of the manual：
* Before the operation, please read carefully and understand the instructions described in the
content. After read the instructions on the vicinity of the operator when needed to read. When the
tester is moved from one workplace to another, please send user manual together with the
equipment, so as not to lose.
* If you find that missing page manual or instructions to be contaminated, please contact with
the dealer of Allwin company immediately to purchase.
* With improved equipment capabilities, software upgrades, instruction manual will also
continue to be improved and upgraded. Note that the test instruments and manual versions of the
software.
Revised version record：
Date
Modification content
Version
2011-07
Begin to compile the first draft
1.0
2011-09
Add the new functions
1.1

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ATTENTION FOR SAFTY
* During the test, the operator can not touch the position or area described below; otherwise it
will cause electric shock accident.
（1）High-voltage output port of the tester；
（2）Connected with the tester's alligator clip test leads；
（3）Products being tested (DUT)；
（4）Any object connected to the tester；
* To prevent electric shock accidents, please follow the following safety steps:
（1）To prevent electric shock accidents in the use of tester, user had better wear insulated
rubber gloves and then engage in operation to the tester.
（2）Safe and reliable ground: On the rear panel of this series tester, there is a ground
terminal, this terminal should be connected to ground. If there is no reliable grounding, once short
circuit exist between the power supply and case, or between and high-voltage test line and case
during the testing process, the case will have a high voltage existance, which is very dangerous. So
long as any contact of the case, person may have resulted in the occurrence of electric shock, that is
why this ground terminal must be reliable connection with the earth.
（3）When the tester's power switch is turned on, please do not touch the any items which
is connected to the high voltage output port;
* The following situation is very dangerous：
（1）Press "STOP" key, high-voltage test lamp is still lit。
（2）Displayed voltage value is not changed but high-voltage indicator is still lit.
Encounter the above situation, please do not use the tester, turn off the power switch and
unplug the power cord. Contact with Allwin instrument company or its designated dealer
immediately

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TABLE OF CONTENTS
Explanation of the manual：················································································································ 2
1 Unpacking and installation tester······································································································ 5
1.1 Check the received instrument································································································ 6
1.2 Check test clips of the tester in the carton.············································································ 6
1.3 Carton and packing materials.································································································ 6
1.4 safety rules for using the instruments:··················································································· 6
1.5 The provisions of the operator·································································································7
1.6 Check power supply voltage ···································································································· 8
1.7 Check and replace fuses. ·········································································································· 8
1.8 Grounding WARNING············································································································· 9
2 Notice before use································································································································10
2.1 Prohibit operation ··················································································································· 10
2.2 Emergency treatment·············································································································· 11
2.3 Precautions during testing ····································································································· 11
3 Panel illustration································································································································ 13
3.1 illustration of front panel ·······································································································14
3.2 illustration of rear panel·········································································································15
4 Function outline ·································································································································16
4.1 Outline·······································································································································17
4.2 Function introduction·············································································································17
5 Technical parameters ························································································································18
5.1 Technical Parameters··············································································································19
6 Parameters setting ····························································································································· 20
6.1 Power on····································································································································21
6.2 Parameters setting···················································································································21
7 Test function········································································································································22
7.1 Connection································································································································ 23
7.2 CS2676FX Test······················································································································ 23
8 Accessories & Maintenance··············································································································24
8.1Accessories：： ··························································································································24
8.2 Maintenance：·························································································································24
8.3 Contact······································································································································25

CS2676FX Insulation Resistance Tester User Manual Ver:1.1
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1
Unpacking and installation tester

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1.1 Check the received instrument
When you receiveAllwin’s equipment, check the tester follow the below steps：
1.1.1 The instrument box is intact; if damaged, we recommend that you do not unpack the
box, but contact with the company's distributors or Allwin Instrument Company.
1.1.2 If the instrument package is good, then please check what you have ordered instrument
model are the same with the model label on the box; if not, please contactAllwin dealer or Allwin
company
After checking through 1.1.1 and 1.1.2, if there is no problem, you can unpack the carton and
check the instrument your ordered
1.2Check test clips of the tester in the carton.
Please check your accessories within the box to see if the test clips are completed;
Accessories:
1.3 Carton and packing materials
Please Save the original packing materials for use in future transportation.
1.4 safety rules for using the instruments
In the use of equipment, be sure to follow the following safety
rules:
1.4.1 Do not use the tester in flammable gases environment
In order to prevent the occurrence of an explosion or burning, do not use the tester in alcohol,
thinner or other flammable material next to the tester. Also do not use the tester where contain
flammable gases in the environment.
1.4.2 Do not use the tester in heat or direct sunlight places
Components that are inside the instrument are precision devices used. User should avoid
operating it where in the direct sunlight or where has high temperature. This will accelerate the
aging of the instrument or Shorten the life of the tester but also result in damaging to the tester.

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Instrument usage temperature range: 0 ºC ~ +40 ºC;
Instrument storage temperature range: -20 ºC ~ +70 ºC;
1.4.3 Do not use the tester in humidity environment
Do not put the instrument on a boiler, kettle, humidifier water or moist environments.
Condensation of water droplets may lead to Internal short-circuit and damage the instrument,
even if it can cause serious fires. If the humidity in the storage over the regulated humidity, the
test instrument must be completely dry before use.
Operating humidity: 20% ~ 80% RH
Storage humidity range: less than 90%
1.4.4 Do not use the tester in dusty environment
Dusty environment may make the instrument internal short circuit caused the fire.
1.4.5 Do not use the tester in poorly ventilated environment
Instrument has forced air-cooled cooling system; heat dispersion within the instrument will not
go inside the instrument overheating and damage. Please do not accumulate other items in air
inlet and outlet place to avoid blocking duct.
1.4.6 Do not use the tester on the sloping surface or shaking of the places
Instrument on a sloping surface or shaking of the place is easy to drop and break down;
1.4.7 Do not use the tester beside the sensitive receiving equipment or
testing equipment
If the tester is near these equipments, high voltage generated from the tester will interference
work of them.
1.4.8 The input power of the tester must have a separate switch control
The input power of the tester must have a separate input power switch control, once meet the
emergency situation, user should cut off the power switch immediately then deal with the
accident.
1.5 The provisions of the operator
The tester output voltage is sufficient to cause death, it must be qualified personnel to operate the
test instrument;
1.5.1 Qualifications
Operators must be skilled personnel to operate, must understand the basic concepts of the
voltage, current and resistance;
Operator must know during the high-voltage test, high voltage is generated form high voltage
output port, after flowing from device under test(DUT), by the end of RETURN cable into the
tester inner; If you touch any of the items, it will be caused high-voltage electric shock.
1.5.2 Safety Rules
The operator must go through special training to understand the various safety procedures and
safety requirements of the test, read carefully of the manual before operating of this tester.

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1.5.3 Dress
The operator can not wear clothes decorated with metal or wear metal accessories, such as
watches, metal bracelets. Non-cardiac patients or those who wear a pacemaker can not operate
the tester.
1.6 Check power supply voltage
1.6.1 Switch input supply voltage apparatus
This instrument uses 110V AC or 220V AC ±10%, 47 ~ 63Hz single phase power. Before turn
on the power switch in front of the panel, make sure the supply voltage and fuse is complied
with the rear panel voltage selector switch.
WARNING: To prevent malfunction or damage to tester, please use the tester in the
specified voltage range.
1.7 Check and replace fuses.
Warning:
* To avoid electric shock accidents in the replacement of the fuse, turn off the power switch and
unplug the power cord before replacing the fuse.
* Make sure to use fuse that is complied with the same shape, size and
Features marked in the manual. Otherwise it may damage to the tester.
1.7.1 Fuse Specifications
Input voltage range
Frequency range
Fuse
220V
47Hz～63Hz
2A
1.7.2 Fuse Replacement
Replace the fuse, follow these steps:
(1) Turn off the power switch and unplug the power cord;
(2) Fixed with a screwdriver to open the fuse holder as shown below;

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(3) Check and replace the fuse, it must be the same with specifications listed in the 1.7.1;
(4) The fixed fuse holder should be back in its original location.
1.8Grounding
WARNING: * Improper grounding or not grounding may cause electric shock;
To ensure safety, we must ensure the equipment to be reliably grounded; Connect the power
cord into a single-phase grounded power outlet.

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2
Notice Before Use
Before operation, please read the notice carefully。
Warning：The maximum output voltage of this tester is 1kVDC; When user is operating,
user must follow the warning, notice and other explanation.
2.1 Prohibit operation
2.1.1 Do not press the power switch continuously and fastly.
If you want to turn on the power switch after turning off the power switch, make sure the
power switch is turned off after a few seconds or longer. Do not turn on or turn off the power switch
repeat and frequently. When the tester outputs high-voltage, don’t turn off the power switch, except
in urgent cases can perform this operation.
2.1.2 High-voltage output and ground could not be short-circuit.
The high-voltage test leads of the tester are strictly prohibited to be short-circuit with the AC
power cord or other electrical equipment connected to the ground. If short circuit happens, shell of
the tester maybe with high-voltage, which can easily result in electric shock. Ensure protection of
ground terminal on the rear panel have a reliable connection of safety ground. See detailed
grounding methods on items 1.8.
2.1.3 Do not use external voltage.
Do not apply the high voltage generated by external device to high-voltage output port.
Because the instrument's internal voltage-meter can not as a separate voltmeter used. External
voltage may damage the voltmeter.

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2.2 Emergency treatment
In case of emergency (electric shock or DUT burning), must take the following two actions and the
two actions must be all completed.
(1) Turn off the power switch;
(2) Unplug the power cord of the instrument.
2.3 Precautions during testing
2.3.1 Wear insulated gloves against electric shock
To prevent electric shock accidents in the use of the tester, you should wear insulated rubber gloves
then engage in electricity work.
2.3.2 Connect the test leads and current measurement port
Connect the test leads in the current measurement end, when the tester is used, in any case, user
must check to see whether this test line is not connected, loose or fall off. Connect the test leads
with the device under test (DUT), be sure to connect DUT to current measurement terminal then
connect DUT to high-voltage terminal. If test leads in current measurement terminal are not
connected well or off-line, it is very dangerous for the whole DUT maybe filled with high-voltage.
2.3.3 Connect the test leads to high voltage output
After connected the test line of current measurement, then connect high-voltage output line obey the
following procedure:
(1) Press [STOP] key.
(2) To confirm the test light does not light.
(3) High-voltage output cable plugs into the high voltage output port.
2.3.4 Replace DUT
When one test is completed, the replacement of another DUT, please confirm:
(1) Tester is in the "reset" state.
(2) Test light is not blinking, the discharge lamp is not lit.
(3) LCD voltage display number is not beating.
Warning: Replace the DUT, do not touch high-voltage probe!
2.3.5 In testing status

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When the tester is in testing status, test leads, DUT, test probes, and high-voltage output are all with
high voltage, do not touch any part of the test loop.
Note: When the host is high output state, do not touch any part of the test circuit to avoid electric
shock!
2.3.6 Test Termination
When the test has come to an end or without the use of tester or the tester is no longer used, or user
is left, be sure set power switch as OFF. That is to say, turn off the power switch.
2.3.7 After the test, user must confirm the following:
At any time, before touch high-voltage leads, high voltage output or the DUT, make sure that:
(1) Power switch is off, the displayer does not light.
(2) After IR test or DC test, the test body maybe still exist high-voltage after the power switch is off,
so it still needs some time to fully discharge. Even if test is finished, please do not immediately
touch any place where may cause electric shock.
2.3.8 DUT should not be connected to earth
The current of the tester is great low, so the DUT should not be connected to the earth. If the
insulation between the earth and the DUT is not well, the error of the insulation resistance value
will be large.

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3
Panel Illustration
3.1 Front panel illustration
3.2 Rear panel illustration

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3.1 illustration of front panel
1、POWER SWITCH
Press the button to turn on the power, pop-up for turning off the power.
2、STOP key
It is used to stop the test during the test; In additions, it is used to stop alarming when the
DUT is failed to test.
3、START key
In the “stop”status, press the key to start to test.
4、Gear select key
（1）Voltage select
Select the test voltage 500V/1000V according to the actual requirements.
（2）Range switch
After the test voltage is selected, the corresponding voltage indicator lights, if you are
not sure about the resistance range, please select the maximum range 2000M, and then
select the appropriate range according to the display resistance, If the resistance is greater
than the selected range, the screen displays "----", please switch to the high range to
measure; If the resistance is less than the selected range, the tester will do the failure
alarm.
5、Fail indicator
If the resistance value is less than the range, the indicator will be light and the beep will be
alarmed.
6、Test indicator
During the test, the indicator will be light, the high voltage port output the high voltage. Please do
not touch the high voltage output terminal.
7、Screen
Display the resistance value of the DUT.
8、500V voltage indicator
9、1000V voltage indicator

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10、11、DOWN key, UP key, the measured resistance lower limit settings, press the key to set
the lower limit within the measuring range.
12、Current sample
13、Grounded shield end
14、High voltage output
During test, the output voltage is negative voltage, the maximum voltage is 1kVDC.
3.2 illustration of rear panel
1．Power socket\ Fuse outlet
Unplug the power cord before change the fuse. As to input voltage selection and fuse replacement,
please refer to 1.7.

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4
Function Outline
4.1 Outline
4.2 Function introduction

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4.1 Outline
CS2676FX is the insulation resistance tester, it is the type of small insulation resistance tester,
simple features, easy to operate and easy to learn. Voltage switches manually, voltage settings for the
two ranges, divided into 500V and 1000V.The testing resistance value can be displayed at real time. In
additions, the lower limit can be set according to the users’actual needs. It is widely used to test the
insulation resistance value of the electronic components, household appliances, insulation materials,
instrumentation, lighting appliances, electric appliances quickly and accurately.
4.2 Function introduction
4.2.1 Adjust the output voltage automatically
The tester is controlled by the negative feedback circuit, it can automatically adjust the voltage to the
setting value, so the output voltage will not be impacted by the load or the input power supply voltage.
4.2.2 Discharge function
After the test is finished, the voltage will be needed some time to discharge fully after the power is
turned off. The tester is with the discharge function. After the test is finished, the tester is in the "stop"
state, which can discharge the DUT to protect the safety of the operator.
4.2.3 Set the lower limit of the measured object
The added up and low key can used to set the lower limit of the resistance according to the users’actual
requirements. For example: select 2M range, the test resistance range from 200kΩ to 2MΩ, the screen
shows the lower limit of 0.200, press the up key to increase one, long press the up key to increase ten; If
the lower limit is set too high, you can press the low key to reduce the lower limit, the minimum lower limit
is 200kΩ, the lower limit value shall not be 2 MΩ higher than the upper limit, if the lower limit is set to 2
MΩ, when press the start key, the tester will alarm. When users set the lower limit, the value will be
stored in the registers, the screen will display the lower limit when turn on the tester next time.

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5
Technical parameters

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5.1 Technical Parameters
CS2676FX
Model
CS2676FX
Output
voltage
（DC）
Range
500V/1000V
Accuracy
±（5%+3‰FS）
Range
Test range
2MΩ
200kΩ~2MΩ±（5%+2words）
20MΩ
2MΩ~20MΩ±（5%+2words）
200MΩ
20MΩ~200MΩ±（5%+2words）
2000MΩ
200MΩ~1000MΩ±（5%+2words）、1000MΩ~2000MΩ±（7%+2words）

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6
Parameters setting
6.1 Power on
6.2 CS2676FX Parameters setting