TECPEL CL-327A Manual Download Page 45

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Accuracy is expressed as ± (percentage of set value + percentage of range)

Function

Referenc
e

Range

Resoluti
on

Accuracy

Remark

DC voltage

100mV

-10.000mV

～

110.000mV

1μV

0.02+0.01

Maximum output current: 0. 5mA

1000mV

-100mV

～

1100mV

10μV

0.02+0.01

Maximum output current: 2mA

10V

-1.0000V

～

11.0000V

0.1mV

0.02+0.01

Maximum output current: 5mA

DC current

20mA

0.000mA

～

22.000mA

1μA

0.02+0.02

External supply for simulate mA:
5V–28V
Maximum load 1KΩ at 20mA

Resistance

400Ω

0.00Ω

～

400.00Ω

0.01Ω

0.02+0.02

Excitation current: ± 0.5–3 mA;
if ± 0.1–0.5, add 0.1Ω;
Accuracy does not include lead
resistance;

4KΩ

0.0000

KΩ

～

4.0000 KΩ

0.1Ω

0.05+0.025

Excitation current: ±0.05
–0.3mA;
Does not include lead resistance;

TECPEL

Summary of Contents for CL-327A

Page 1: ... LCD can display the TC RTD measurement value and mV Ω corresponding simultaneously mA and mA simultaneously TC source terminals and built in lead connector of same temperature RJ compensation with auto reference joint point Manual step source and auto step and sweeping step source Room temperature monitoring under any operation 2 Contact Us To purchase parts obtain operation help or address of th...

Page 2: ...uide A User s Manual One Fuse 50mA 250V One Fuse 63mA 250V 4 Safety Information For the correct and safe use of the instrument be sure to follow the cautionary notes stated in this manual whenever handling the instrument The Company shall not be held liable for any damage resulting from use of the instrument in a manner other than prescribed in the cautionary notes A Warning identifies conditions ...

Page 3: ...inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connectors Make sure the battery door is closed and latched before operating the meter Remove test leads from the meter before opening the battery door Inspect the test leads for damaged insulation or exposed metal Check test lead continuity Replace damaged test leads before using the met...

Page 4: ...nstalled in the meter case to power the meter Do disconnect the testing lead before shifting to different source functions When servicing the meter use only specified replacement parts To avoid false reading which could lead to possible electric shock or personal injury replace the batteries as soon as the low battery indicator appears Caution To avoid possible damage to meter or to equipment unde...

Page 5: ...5 5 Familiar With the Calibrator Figure 1 Entire Graph Figure 2 Source Terminals TECPEL ...

Page 6: ...lains their use Table 3 explains their use Table 2 Source Terminals Terminal Function Source Signals DcmA Source Signals FREQ PULSE SWITCH Source Signals DcmA All the common return terminals of source function Source Signals OHM RTD Source Signals 3W Terminal Source Signals OHM RTD DCV TC Source Signals 4W Terminal Figure 3 keys TECPEL ...

Page 7: ... or off the backlight 15 Source V key Select DC voltage source function 16 Source RTD key Select RTD source function 17 Source OHM key Select resistance source function 18 Source TC Key Select TC source function 19 Source Key Select pulse number frequency or switch source function 20 Source mA Key Select mA source function 21 RJ ON Key In TC source function turn on or off the RJ compensation funct...

Page 8: ... 26 Key In DCmA source function select the auto wave mode In frequency pulse or switch source function set the source amplitude 27 25 100 Key In mA source function select 25 or 100 manual step output mode In pulse number frequency or switch source set the frequency value 5 3 Display Screen Figure 4 shows a typical display screen a Source b Source Frequency c Source Resistance d Source Switch e Bat...

Page 9: ...mA 25 or 100 manual step source s DCmA auto stepping or sweeping source t Source assistance districts Figure 4 typical LCD display u Source unit of assistance district v Source number of pulses stort DCmA auto stepping or sweeping source function 6 Before starting source Operating Precautions Precautions for Safe Use of the Instrument When using the instrument for the first time be sure to read th...

Page 10: ...vent any heat emitting object from coming into contact with the adapter General Handling Precautions Before carrying around the instrument turn off power to the object under test and then the POWER key of the instrument If you are using an Charger disconnect the power cord from the wall outlet Finally detach all lead cables from the instrument Use a dedicated carry case when transporting the instr...

Page 11: ...with the cover of the battery holder opened Environmental Requirements Use the instrument in locations that meet the following environmental requirements Ambient temperature and humidity Ambient temperature range 0 to 50 Ambient humidity range 20 to 80 RH Use the instrument under non condensing condition Flat and level locations Do not use the instrument in locations that are Exposed to direct sun...

Page 12: ...n antistatic mat or any other alternative means Condensation may occur if you relocate the instrument from places with low temperature and humidity to places with high temperature and humidity or if the instrument experiences any sudden temperature change In that case leave the instrument under the given ambient temperature for at least one hour to ensure that the instrument is free from condensat...

Page 13: ...fore you begin installing batteries Step 2 Remove the battery holder cover by sliding it in one quarter counterclockwise direction and turn off the calibrator Step 3 Install four alkaline batteries of same type in the battery holder with their positive and negative electrodes positioned correctly as indicated on the holder Step 4 After replacement reattach the battery holder cover Indication of Ba...

Page 14: ... Make sure the voltage of the AC power source matches the rated supply voltage of the Charger before connecting the Charger to the AC power source Do not use any Charger other than the dedicated Charger from the Company Do not charge non Ni Cd Ni MH batteries or wasted batteries Step 1 Make sure the calibrator is turned off Step 2 Insert the plug of the optional Charger into the Charger connection...

Page 15: ...ore to relight it The time could be reset in the factory default parts see Chapter 8 Factory Default 7 Source From the calibrator you can source a DC voltage DC current simulate transmitter resistance thermocouple RTD frequency pulse signal or contact output Warning To avoid electrical shock do not apply more than the rated voltage as marked on the calibrator between terminals or between any termi...

Page 16: ...tput terminal and the red lead cable to the VTc output terminal Step 2 Connect the other ends of the cables to the input Figure 5 Sourcing DC voltage TC of equipment under test while making sure the polarities are correct For DC current Figure 6 Step 1 Connect the black lead cable for source to the mA output terminal and the red lead cable to the mA output terminal Step 2 Connect the other ends of...

Page 17: ...ities are correct Figure 7 Sourcing Resistances and RTD For Frequency Pulse and Switch Figure 8 Step 1 Connect the black lead cable for source to the COM output terminal and the red lead cable to the Hz output terminal Step 2 Connect the other ends of the cables to the input of equipment under test while making sure the polarities are correct Figure 8 Sourcing Frequency Pulse and Switch 7 2 Sourci...

Page 18: ... set point to the default value 0 Step 3 Pressing the ON key causes the indicator on the LCD to change from OFF to ON The calibrator sources the preset DC voltage between the output terminals Step 4 To turn off the output press the ON key once again The OFF appears on the LCD and no signals sourced between the terminals 7 3 Sourcing DC Current Step 1 Using the mA key to select the desired source f...

Page 19: ...tting keys set the signal in a step by step manner In 25 set point condition you can set the signal in 4 mA increments or decrements in the order 4 8 12 16 20 by each press of the key In 100 set point condition you can set the signal in 16 mA increments or decrements in the order 4 20 by each press of the key Pressing the ZERO key initializes the signal set point to the default value 4mA Step 3 Pr...

Page 20: ... Pressing the START key once more stops the auto stepping and auto sweeping mode The RUN mark disappears The terminals source the value displayed on the screen Step 5 Pressing the ON key stops sourcing and OFF mark displayed on the screen No signals sourced between the terminals Tips Press the START key again to continue the auto stepping and auto sweeping mode after stopping them and RUN mark dis...

Page 21: ...alibrator and the loop power as listed in Figure 9 and operate in steps shown in sourcing DC current Figure 9 4 20 mA simulate transmitter source 7 4 Sourcing Resistance Firstly the calibrator sources a resistance signal by receiving the resistance measuring current I supplied from the device being calibrated such as a resistance meter and then delivering the voltage V TECPEL ...

Page 22: ... the lead cables for source The whole resistance when measured at the ends of the lead cables for source is given by adding the resistance of the lead cables approximately 0 1Ω on a round trip basis to the sourced resistance signal For source of precise resistance signals use three wire or four wire connection See figure 10 If capacitance between the terminals of a device under calibration is grea...

Page 23: ...CD and no signals sourced between the terminals The connection method based on three wire and four wire are listed in Figure 10 7 5 Simulate Sourcing TC The calibrator is designed with an internal temperature sensor To calibrate a device with built in reference junction temperature compensation by sourcing a thermoelectromotive force with the calibrator without using non external 0C reference junc...

Page 24: ...rminals Step 4 To turn off the output press the ON key once again The OFF appears on the LCD and no signals sourced between the terminals Note If you don t need the reference junction compensation press the RJ ON key to shut off The calibrator source a value with using external 0 reference junction compensation means and the RJ ON mark vanishes Press the RJ ON key once more to start the reference ...

Page 25: ... PT100 Cu10 Cu50 0 05 to 0 3mA at PT200 PT500 PT1000 To ensure accuracy the resistance measuring current I from the device under calibration shall be strictly confined within the range For further details see Chapter 24 Specification Any resistance signal being sourced does not include the resistance component of the lead cables for source The whole resistance when measured at the ends of the lead...

Page 26: ...urced between the terminals 7 6 1 Temperature Monitor Function The calibrator offers a temperature monitor function which is convenient for the user to observe the resistance value sourced between the output terminals In RTD source function LCD shows the resistance value sourced between the output terminals Pressing the T DISP key once more LCD shows the present room temperature value in assistanc...

Page 27: ...reasing the digit from 9 or decreasing it from 0 causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the key continuously changes the digit And the value won t change if it is increased or decreased to the Maxim or Minimum value Step 6 To re enter into the frequency set mode press the FREQ key to set the frequency Step 7 Pressing the ON ...

Page 28: ...owing you to set the output value without interruption Holding down the key continuously changes the digit And the value won t change if it is increased or decreased to the Maxim or Minimum value Step 4 Pressing the Vpeak key once switches to amplitude setting mode The LCD provides a reading of 1V Step 5 Set the output value digit by digit using each pair of output setting keys Each pair of keys c...

Page 29: ...rom OFF to ON and the calibrator sources low level between the output terminals Step 10 Pressing the START key the calibrator sources the set number of pulse responding to the preset frequency and amplitude LCD shows the symbol RUN Step 11 When source is complete the calibrator automatically turns off the output and ceases operation The RUN symbol disappears from the LCD Step 12 To turn off the ou...

Page 30: ...eys corresponds to each digit of the LCD reading Each press of the key increases or decreases the digit Increasing the digit from 9 or decreasing it from 0 causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the key continuously changes the digit And the value won t change if it is increased or decreased to the Maxim or Minimum value Ste...

Page 31: ... calibrator When turning on the calibrator pressing the RANGE key immediately to enter the default set 8 1 Setting Auto power off time Step 1 Pressing the START key LCD displays AP OFF symbol on the upper part indicating automatic power off setting mode Step 2 Set the time within 0 60 minute range by using the second pair of counting from right to left Each press of the key causes 10 minute increm...

Page 32: ...the Maxim or Minimum value The setting range is confined within 0 3600 seconds Step 3 Pressing the ON key LCD displays SAVE symbol on the upper part for 1sec Tips When the default value is 0 the backlight won t be off automatically if turned on except that you turn it off manually 8 3 Setting temperature unit Step 1 Pressing the START key LCD displays TEM U symbol on the upper part indicating temp...

Page 33: ... Relative humidity 35 to 75 RH Warm up Before using warm up the calibrator for the period of time specified Set the meter into the standard environment for 24 hours and then turn on the power Change the set into non automatic power off state and warm it up for one hour Power Supply new alkaline size AAA battery type 7 is the best choice for adjustment Source Adjustment Operation Table 4 Adjustment...

Page 34: ...ely You must calibrate all the calibrating points of the selected range together When adjusting resistance source the exciting current is for adjustment point 0 and F and is for adjustment point 0 and F Turn on the meter press the START key while simultaneously holding down the ON key enters the source calibration state LCD shows CAL 0 symbol on the assistance districts part the present calibratin...

Page 35: ...ource districts part and the lowest digit of the calibrated sourced value in the right of the assistance districts part respectively Step 4 Read the calibrator output on the calibration standard Then using the pair of keys adjust the reading so that it matches the measured CAL adjustment setpoint In the CAL mode the right pair of keys are used to increase or decrease the least significant digit th...

Page 36: ... main districts part and the lowest digit of the calibrated sourced value in the assistance districts part respectively Step 3 Read the calibrator output on the calibration Figure 12 Adjusting current source standard Then using the pair of keys adjust the reading so that it matches the measured CAL adjustment setpoint In the CAL mode the right pair of keys are used to increase or decrease the leas...

Page 37: ... the calibrated sourced value in the right of the assistance districts part respectively Step 4 Read the calibrator output on the calibration standard Then using the pair of keys adjust the reading so that it matches the measured CAL adjustment setpoint In the CAL mode the right pair of keys are used to increase or decrease the least significant digit the digit in the right of the LCD assistance d...

Page 38: ...djusting of inner variance Make sure the applied voltage between the H and L terminals is within 20 uV when setting 0 00Ωresistance If the voltage exceeds the range the calibrator needs internal adjustment then contact the vendor from whom you purchased the calibrator 2 Noting exciting current of sourcing resistance Calibration of the 400Ω resistance range requires 2 exciting currents of 0 1mA and...

Page 39: ...eads and Charger before replacing batteries or fuse and turn off the meter Step 2 Remove the protector as shown in Figure14 With a standard blade hand screwdriver turn each battery door screw a quarter counterclockwise to remove Figure 14 Replacing batteries and fuses the battery door Step 3 Replace with four new AAA alkaline batteries under the instructions shown on the battery door Or replace th...

Page 40: ...e charger into the AC power Note In normal charging function the indicating light of the charger lights on When finished the charging function stops automatically and the indicating light becomes dark Blinking of the indicating light means the charger is not connected or no battery is inside Note Do not use the calibrator when it undergoes charging otherwise the charging will be prolonged 12 Maint...

Page 41: ...nual to make sure you are operating it correctly If the meter still fails to operate properly pack it securely in its original container if available and forward it postage paid to the nearest Service Center The company assumes NO responsibility for damage in transit The Company guarantees a rapid repair and maintenance and delivers the meter back as soon as possible Please refer to the Warranty I...

Page 42: ...42 12 3 Replacement of Parts All the types of parts are listed in Table 8 see Figure 15 as reference Figure 15 Replacing part TECPEL ...

Page 43: ...aline battery 4 5 Terminal Gasket 8 20 Tilt stand 1 6 LCD Frame 1 21 Screw M3 16 4 7 LCD 1 22 Battery Door 1 8 Backlight Panel 1 23 Plastic Screw 2 9 Conductive Rubber wire 2 24 Sponge length width height 40 6 6 1 10 LCD Circuit Panel 1 25 Sponge length width height 48 10 2 5 1 11 Screw M3 8 4 26 Outer Protector 1 12 Terminal Cover 1 13 Cover Door 1 14 Main Circuit Panel 1 15 Bottom Panel 1 TECPEL...

Page 44: ...4 Specifications General Specifications for Source These specifications assume A 1 year calibration cycle An operating temperature of 18 to 28 64 4 82 4 Relative humidity of 35 to 70 non_condensing No Name of the Options Mode 1 CALCT Temperature Probe A000019 2 TC Plug R S K E J T N B L U 3 Test Hoop TP907110 4 CA Battery Parcel A000021 5 CA Charger A000020 TECPEL ...

Page 45: ...imum output current 2mA 10V 1 0000V 11 0000V 0 1mV 0 02 0 01 Maximum output current 5mA DC current 20mA 0 000mA 22 000mA 1μA 0 02 0 02 External supply for simulate mA 5V 28V Maximum load 1KΩ at 20mA Resistance 400Ω 0 00Ω 400 00Ω 0 01Ω 0 02 0 02 Excitation current 0 5 3 mA if 0 1 0 5 add 0 1Ω Accuracy does not include lead resistance 4KΩ 0 0000 KΩ 4 0000 KΩ 0 1Ω 0 05 0 025 Excitation current 0 05 0...

Page 46: ...ernal temperature compensation caused by a sensor S 0 C 1767 C 0 100 1 5 100 1767 1 2 K 200 0 C 1372 0 C 0 1 C 200 0 100 0 0 6 100 0 400 0 0 5 400 0 1200 0 0 7 1200 0 1372 0 0 9 E 200 0 C 1000 0 C 200 0 100 0 0 6 100 0 600 0 0 5 600 0 1000 0 0 4 J 200 0 C 1200 0 C 200 0 100 0 0 6 100 0 800 0 0 5 800 0 1200 0 0 7 T 250 0 C 400 0 C 250 0 400 0 0 6 N 200 0 C 1300 0 C 200 0 100 0 1 0 100 0 900 0 0 7 9...

Page 47: ...emperature scale ITS 90 Excitation current 0 5 3mA for Pt100 Cu10 Cu50 Add 0 5 C when excitation current is 0 1 0 5mA Excitation current 0 05mA 0 3mA for PT200 PT500 PT1000 Does not include lead resistance Pt200 385 200 0 C 630 0 C 200 0 100 0 0 8 100 0 300 0 0 9 300 0 630 0 1 0 Pt500 385 200 0 C 630 0 C 200 0 100 0 0 4 100 0 300 0 0 5 300 0 630 0 0 7 Pt1000 385 200 0 C 630 0 C 200 0 100 0 0 2 100...

Page 48: ...Ω Duty Cycle 50 1KHz 0 100KHz 1 100KHz 1Hz 10KHz 1 0KHz 11 0KHz 0 1KHz 100KHz 10KHz 110KHz 2KHz 5 count PULSE 100Hz 1 100000cycles 1cyc 2 count 1KHz 10KHz SWITCH 100Hz 1 00Hz 110 00Hz 0 01Hz 2 count FET switch Maximum open close voltage 28 V Maximum open close current 50mA 1KHz 0 100KHz 1 100 KHz 1Hz 10KHz 1 0KHz 11 0kHz 0 1KHz 100KHz 10kHz 110kHz 2KHz 5 count Other feature TECPEL ...

Page 49: ...f the measured temperature is from 20 100 15 Points for Attention to Use of Operation Instruction The present operation instruction is subject to change without notice The content of the operation instruction is regarded as correct Whenever any user finds its mistakes omission etc he or she is requested to contact the manufacturer The present manufacturer is not liable for any accident and hazard ...

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