CYRUSTEK ES269 Скачать руководство пользователя страница 26

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Ver 1.2

22/02/24

ES269

6000 Counts Intelligent Auto-Function DMM IC

Main_Digit1 –Main_Digit3

Main_Digit1 – Main_Digit3 is the readings of measurement result shown on LCD panel.

M_DigitN

– M_DigitN

consist of 4-bit BCD code. The M_SIGN is the sign bit of readings.

a04

M_SIGN

a05

M_Digit3

M_Digit2

a06

M_Digit1

M_Digit0

FUNCTION

The packets of

a07-a09

indicate the measurement mode of the meter. The following table

summarizes the transmitted bit for each mode.

For example, if the meter operates in Voltage mode, this

a07

packet is

10000000

a07

Ohm

Continuity

Diode

Capacitance

a08

EFmode

SCAN

a09

STATUS

The a10-a13 packets indicate the whole status when ES258 is in normal operation. For example,

if meter is operated at ACV / MANU range, then

a10

packet will set

011000xx

The format of the four packets is shown below.

a10

AUTO

MANU

APO

a11

LBAT

LBAT30s

a12

MAX

MIN

a13

Danger

OPEN

SHORT

DISCH

AUTO

: When auto range is selected.

MANU

: When manual mode is selected.

: When AC mode is selected.

: When DC mode is selected.

: When ‘OL’ is displayed on LCD.

APO

: When APO is displayed on LCD.

LBAT

: When battery voltage is too low.

LBAT30s

: When ‘Lobt’ is shown on LCD.

Содержание ES269

Страница 1: ...0 000nF 600 0uF Non scanning 0 200nF 60 00mF auto scanning Taiwan patent no 323347 453443 China patent no ZL 200710106702 8 Continuity test 30ohm 50ohm selectable Diode test VAHz measurement 5 00Hz 60...

Страница 2: ...6 ELECTRICAL CHARACTERISTICS 7 FUNCTIONAL DESCRIPTION 8 Operation Modes 8 Voltage Measurement 8 Current Measurement 9 VAHz function 10 Resistance Measurement 10 Continuity test 11 Diode Measurement 1...

Страница 3: ...on DMM IC Calibration Scheme 23 SERIAL DATA OUTPUT 24 MISCELLANEOUS 28 LCD configuration 29 LCD Backplane Waveform 30 LCD display on condition 30 APPLICATION CIRCUIT 32 AC to DC circuit 35 Package Inf...

Страница 4: ...2 ES269 Pin Description Pin No Symbol Type Description 1 AGND P Analog ground 2 VEE P Analog ground 3 CAZ I Auto zero capacitor connection 4 CINT O Integrator output Connect to integral capacitor 5 RA...

Страница 5: ...cklight driver 39 ALARM O HV signal detection short circuit indication and EF indication output 40 BUZOUT O Outputs a 2KHz audio frequency signal for driving piezoelectric buzzer 41 BP1 O LCD backplan...

Страница 6: ...verter 94 CP O Positive capacitor connection for on chip DC DC converter 95 BAT9 I Low battery configuration If 3V battery is used connect it to AGND The default low battery thres hold voltage is 2 3V...

Страница 7: ...ween VRH and AGND 1 33 1 23 1 13 V Open circuit voltage for measurement except 600 Mode 0 98 0 93 0 88 V Open circuit voltage for 600 measurement and Continuity Mode V V Internal pull high to 0V curre...

Страница 8: ...can switch range by Range key ES269 has an OL display selection feature achieved by configuring a S600VEFSEL pin If pin S600VEFSEL is floating or is connected to V the DCV and ACV overflow level is 60...

Страница 9: ...ge key Table 4 milli Ampere ranges for multi meter Mode Full Scale Input Terminal Full scale mAR1 60 00mA mAin V S SGND 60 00mV mAR2 600 0mA mAin V S SGND 600 0mV Table 5 Ampere ranges for multi meter...

Страница 10: ...suitable full scale range in resistance measurement mode The following table summarizes the full scale ranges and the reference resistors in each configuration In scan mode it automatically switches t...

Страница 11: ...de it automatically switches to continuity test as resistance value is lower than 600 0 In EF unit OPO_R OPO_G and OPO_Y are LED outputs OPO_G is high if a complete path resistor is less than 50 30 Ot...

Страница 12: ...ement mode Table 10 Capacitance ranges Configuration Full Scale Range Relative component Measurement period C1 6 000nF Ratio to C2 0 363s C2 60 00nF Ratio to CAL 0 363s C3 600 0nF Ratio to C2 0 753s C...

Страница 13: ...showed on the LCD display by not digits type Level 1 equivalent to 12 5 full scale of ADC is and the level 4 equivalent to 100 full scale of ADC is Additional beeper BUZOUT pin and LED alarm ALARM pi...

Страница 14: ...econds can turn on the meter again Hazardous Voltage Indication The ES269 could provide the AC DC hazardous voltage indication for voltage resistor diode modes Of course the indication could support L...

Страница 15: ...to AGND directly and the same detection will be made when V is less than 2 3V typ When the Low battery status lasts for 10 seconds the LCD segment of low battery will be blinking When the symbol is bl...

Страница 16: ...O O X X O O IAC O O O O O O O O O IDC O O O O O O O O O Resistance O O O O O O O O O Continuity O O O O O O O O O Diode O O O O O O O O O Capacitance O O O O O O O O O SEL key function In auto scan m...

Страница 17: ...Ver 1 2 17 22 02 24 ES269 6000 Counts Intelligent Auto Function DMM IC Figure 1 Power control Figure 2 Press SELKey to cycle through functions for multi meter model...

Страница 18: ...4 ES269 6000 Counts Intelligent Auto Function DMM IC Figure 3 Press SEL key to cycle through functions for current measurement of multi meter model Figure 4 Press SELKey to cycle through functions for...

Страница 19: ...en HOLD key is pressed over 2 seconds When delay hold function is entered successfully the meter will stop to update the LCD data after six seconds delayed During the six seconds waiting the HOLD symb...

Страница 20: ...be output from BUZOUT pin The buzzer frequency depends on the strength of electric field also The Faster beeper means the stronger electric field ac voltage is sensed The buzzer can be disabled throu...

Страница 21: ...ion The meter displays the maximum and minimum value of the input in MAX MIN mode When key is pressed the meter displays the maximum and minimum value When it is pressed again it will exit MAX MIN mod...

Страница 22: ...ormal V 1000V 1000V 30 EF Normal In EF unit OPO_R OPO_G and OPO_Y are LED outputs In EF normal the three pin is not used CLAMPAPO selection The CLAMPAPO pin can be used to select multimeter or clamp m...

Страница 23: ...ill announce a beep 4 Repeat the process until all calibrations are complete Table 15 Calibration parameters Terminal Default Range For CAL Reference input Remark DCV VR1 6 000V 5 800V All range of DC...

Страница 24: ...1 high when it is inactive Hence the start bit 0 could be used as the triggering signal to begin the reading process The following figure shows the data format of a single packet Single packet 0 1 0V...

Страница 25: ...Function3 a10 AUTO MANU AC DC OL X 1 APO Status1 a11 X X LBAT LBAT30s X X X X Status2 a12 X X X X X X MAX MIN Status3 a13 Danger OPEN SHORT DISCH X X X X Status4 a14 Mega M_Kilo S_Kilo Mili X Micro X...

Страница 26: ...For example if the meter operates in Voltage mode this a07 packet is 10000000 D0 D1 D2 D3 D4 D5 D6 D7 a07 V A Ohm Continuity Diode Capacitance Hz X a08 X X X X EFmode SCAN X X a09 X X X X X X X X STA...

Страница 27: ...ates the measurement unit of the LCD display D0 D1 D2 D3 D4 D5 D6 D7 a14 Mega Kilo X Mille X Micro X Nano Mega 1E6 Kilo 1E3 Mille 1E 3 Micro 1E 6 Nano 1E 9 Carriage return The transmitted code is 0000...

Страница 28: ...Power on and re power on generate one beep Input overflow in voltage and current mode generates one beep every 0 3 seconds or 3 33 beeps per second Continuity diode check generates a continuous 2KHz...

Страница 29: ...PMAX m2 F BP2 AC F4 G4 F3 G3 F2 G2 F2 B1 n K2 BP3 MINUS main E4 C4 E3 C3 E2 D2 E1 G1 M V A BP4 DC D4 DP3 D3 DP2 D2 DP1 D1 C1 m1 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24...

Страница 30: ...rder of 10 3 m2 In capacitor measurement mode and the full scale range is in the order of mF K2 In resistance measurement mode and the full scale range is in the order of K V In voltage measurement mo...

Страница 31: ...tion DMM IC HOLD When HOLD function is enabled When delay hold is selected the HOLD symbol will be blinking for 6 seconds PMIN When MAX MIN function is enabled K1 In VAHZ frequency mode and the full s...

Страница 32: ...AGND 1 VEE 2 CAZ 3 CINT 4 RAZ 5 CREFN 6 CREFP 7 VRH 8 EFin 9 Ain 10 mAin 11 OHMC1 12 OHMC2 13 OR2 14 OR1 15 VR4 16 VR2 18 OVSG 19 VR1 20 OVH 21 OVX 22 CTRL 23 ACVH 24 AVCL 25 BKOUT 38 ALARM 39 BUZOUT...

Страница 33: ...00 R36 2 2K AGND OVSG Q1 2N3906 Q9 2N3904 1 2 3 4 JP4 S600VEF AGND V V ACVL R28 0 1 2 JP13 ClampIN Ain R30 100K V 1 2 3 4 JP5 DISFLHSEL AGND V V S600VEFSEL CLAMPAPO DISFLHSEL C6 470nF PDRMS R4 100K R8...

Страница 34: ...sembling carrying and keeping In addition components connecting to these unprotected pins must be soldered on board before the IC is soldered All the zener diodes above are used for IC protection Thes...

Страница 35: ...0 56K C11 4 7uF C17 0 1uF C13 1uF C14 1uF D5 1N4148 D6 1N4148 ADO ACVH ACVL ADI TEST5 AVG Circuit Figure 8 RMS IC ES736 R44 3 9M R46 220K R41 470K C19 1uF C20 22uF C18 10uF Cc 1 Vin 2 Cf 3 VS 4 Cav 5...

Страница 36: ...Ver 1 2 36 22 02 24 ES269 6000 Counts Intelligent Auto Function DMM IC Package Information 100 Pin LQFP Package Dimension Parameters...

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