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CYRUSTEK ES269 Manual

6000 counts intelligent auto-function dmm ic
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Features
⚫
6000counts LCD display
⚫
3V DC power supply
⚫
Conversion rate: 3 times/s (voltage mode)
⚫
V, A, C, R, Diode, Cont. automatically
detection and measurement (Scan mode).
(Taiwan patent no.:334931)
(China patent no.:ZL 2007 1 0106703.2)
⚫
Combo keys:
SELKey: change measuring mode or power
on/off
BKLight: back light or flash
EF: non-contact electric field detection.
MMX: maximum or minimum
Hold: hold or delay hold
Range: manual range
⚫
Voltage measurement (ACV/DCV):
500.0mV-1000V (scan mode)
0.000-1000V (Non-scanning)
⚫
Current measurement (ACA/DCA):
Multi-meter mode,
In AC/DC detecting mode.
0.00mA-600.0mA (DCA@mAin)
0.000A-20.00A (DCA@Ain)
6.00mA-600.0mA (ACA@mAin)
0.6A-20.00A (ACA@Ain)
In Non-AC/DC detecting mode
0.00mA-600.0mA (DCA@mAin)
0.000A-20.00A (DCA@Ain)
0.00mA-600.0mA (ACA@mAin)
0.00A-20.00A (ACA@Ain)
Clamp meter mode, only for ACA
6.00A-600.0A (scan mode)
0.00A-600.0A (Non-scanning)
⚫
Resistance measurement:
0.0-6.000MΩ (scan mode, including continuity)
0.0-60.00 MΩ (Non-scanning)
⚫
Capacitance measurement:
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.
Ver 1.2
ES269
6000 Counts Intelligent Auto-Function DMM IC
⚫
Diode test
⚫
VAHz measurement: 5.00Hz-60.00kHz
(automatically measuring frequency in
ACV/ACA)
⚫
Switch to A/mA measurement as a probe is
inserted to A/mA slot. (Non-clamp model)
⚫
Non-contact electric field detection
⚫
High voltage (> 30V) indication.
⚫
Voltage mode overflow selection
(600V/1000V)
⚫
Band-gap reference voltage output
⚫
Auto power off (10min. or 20min.) &
re-power on
⚫
Sleep state indicative signal output
⚫
On-chip buzzer driver
⚫
Low battery detection
⚫
Built-in automatic calibration
⚫
Serial data output (RS232 format)
General description
ES269 is an integrated ADC with 6,000 counts
LCD display driver. It could support fully
automatic DMM function measurement. Voltage,
current,
resistance
capacitance or diode measurements are allowed
by fully automatic detection. A non-contact
electric field detector (EF function) is built-in for
ac voltage measurement also. Other features
including data hold, peak and back light function
are available. For power saving, an auto power
off & re-power on scheme are built in. A sleep
output is the indication of entering auto power
off mode.
1
(including
continuity),
22/02/24

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Summary of Contents for CYRUSTEK ES269

  • Page 1 0.00mA-600.0mA (DCA@mAin) 0.000A-20.00A (DCA@Ain) General description 6.00mA-600.0mA (ACA@mAin) 0.6A-20.00A (ACA@Ain) In Non-AC/DC detecting mode ES269 is an integrated ADC with 6,000 counts 0.00mA-600.0mA (DCA@mAin) LCD display driver. It could support fully 0.000A-20.00A (DCA@Ain) 0.00mA-600.0mA (ACA@mAin) automatic DMM function measurement. Voltage, 0.00A-20.00A (ACA@Ain)

  • Page 2: Table Of Contents

    ES269 6000 Counts Intelligent Auto-Function DMM IC Application ⚫ Smart digital multi-meter ⚫ Smart clamp meter Content FEATURES ..............................1 GENERAL DESCRIPTION ..........................1 APPLICATION ............................. 2 PIN ASSIGNMENT ............................4 PIN DESCRIPTION ............................4 ABSOLUTE MAXIMUM RATINGS ........................ 6 ELECTRICAL CHARACTERISTICS .........................
  • Page 3 ES269 6000 Counts Intelligent Auto-Function 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 Information ........................

  • Page 4: Pin Assignment

    ES269 6000 Counts Intelligent Auto-Function DMM IC Pin Assignment AGND DET_A DET_mA OSC1 CINT OSC2 SCLP CREFN SDAP CREFP RSOUT SEG01 EFin SEG02 SEG03 mAin SEG04 OHMC1 SEG05 OHMC2 SEG06 SEG07 SEG08 SEG09 SEG10 SEG11 OVSG SEG12 SEG13 SEG14 SEG15...
  • Page 5 ES269 6000 Counts Intelligent Auto-Function DMM IC Pin No Symbol Type Description Input high voltage for resistance/capacitor measurement Connect to “- (LED Catode)” of OptoMOS-relay. CTRL ACVH DC signal high input in ACV/ACA mode. Connect to positive output of external AC to DC converter.

  • Page 6: Absolute Maximum Ratings

    ES269 6000 Counts Intelligent Auto-Function DMM IC Pin No Symbol Type Description DISFLHSELP The option pin is used to select flashlight and SEL key enable or disable. S600VEFSELP The option pin is used to select the OL value as 600V or 1000V.

  • Page 7: Electrical Characteristics

    ES269 6000 Counts Intelligent Auto-Function DMM IC Electrical Characteristics Table 2. Electrical characteristics, TA=25℃, V- = -3V Parameter Symbol Test Condition Min. Typ. Units Power supply -3.3 -3.0 -2.5 — — Operating supply current Normal operation — In Scan AC/DC mode In sleep mode 13.7...

  • Page 8: Functional Description

    A voltage divider automatically provides a suitable range in voltage measurement mode. The following table summarizes the full-scale ranges in each configuration. In scan mode, ES269 can automatically detect ACV/DCV input signal. The input voltage must exceed 500mV to switch to ACV measurement and 350mV to switch to DCV measurement.

  • Page 9: Current Measurement

    The following table summarizes the full-scale range of each mode. It takes high input from Ain, low input from SGND. In scan mode, ES269 can automatically switch to AC current measurement when the signal level on the Ain pin exceeds 6mV. Since V and A are detected, the voltage measurement will take precedence.

  • Page 10: Vahz Function

    6000 Counts Intelligent Auto-Function DMM IC VAHz function ES269 can automatically measure frequency of ACV or ACA and show the value on sub-display. The maximum frequency range is 60KHz. For correct readings, the signal input level must exceed 10% of full scale.

  • Page 11: Continuity Test

    ES269 6000 Counts Intelligent Auto-Function DMM IC Continuity test Continuity test shares the same configuration with 600.0Ω manual resistance measurement mode and has buzzer output to indicate continuity. The buzzer generates 2KHz beep whenever the reading is less than 30Ω or 50Ω. The boundary can be selected by S600VEFSEL pin. See Table 12 for details.

  • Page 12: Capacitance Measurement

    ES269 6000 Counts Intelligent Auto-Function DMM IC Capacitance Measurement In scan mode, it automatically switches to capacitance measurement as capacitance exceeds 200pF. It can be manually switched to capacitance measurement by SELKey to measure larger or smaller capacitance. The 60.00mF range supports only non-scan mode.

  • Page 13: Electrical Field Detection Test

    4(equivalent to 100% full scale of ADC) is “----“. Additional beeper (BUZOUT pin) and LED alarm (ALARM pin) will be active from ES269. The frequency of buzzer and LED alarm depends on the strength of electric field also. The faster beeper means the stronger electric field (AC voltage) is sensed.

  • Page 14: Auto Power Off Mode (Apo)

    Idle Time selection ES269 has a default auto power-off function. If the meter is idle for more than the given Idle Time, it automatically turns the power off. The idle time can be selected by pin ‘CLAMPAPO’. See Table 13 for details.

  • Page 15: Low Battery Voltage Detection

    6000 Counts Intelligent Auto-Function DMM IC Low Battery Voltage Detection ES269 provides a voltage detection input (pin 95: BAT9) for non-3V battery application. When BAT9 is less than VRH terminal voltage, the LCD segment of low battery will appear. For 3V battery application, pull BAT9 to AGND directly and the same detection will be made when V- is less than 2.3V typ..

  • Page 16: Push Function

    1 second, the ES269 will enter power down mode. If power down mode is entered, only press SEL key to last for 2 seconds or apply the power to V- terminal could re-power on the ES269. The following figure shows the state transition.
  • Page 17 ES269 6000 Counts Intelligent Auto-Function DMM IC Figure 1. Power control Figure 2. Press SELKey to cycle through functions for multi-meter model Ver 1.2 22/02/24...
  • Page 18 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 clamp-meter model Ver 1.2 22/02/24...
  • Page 19 ES269 6000 Counts Intelligent Auto-Function DMM IC Hold and delay-hold key function The data hold mode makes the meter stop updating the LCD panel. This mode can be nested in most of the special modes. Enabling hold function in automatic mode makes the meter switch to manual mode.

  • Page 20: Range Key Function

    6000 Counts Intelligent Auto-Function DMM IC EF key function ES269 supports a non-contact ac voltage measurement, which is called electric field measurement also. Press EFKEYP less than 1 second to enter EF function. When press it again to exit EF function. The ADC input is configured from EFin pin vs.

  • Page 21: Max. And Min. Key Function

    ES269 6000 Counts Intelligent Auto-Function DMM IC MAX. and MIN. key function. 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 mode.

  • Page 22: Selection Pin

    ES269 6000 Counts Intelligent Auto-Function DMM IC Selection pin S600VEFSEL selection The S600VEFSEL pin can be used to set boundary of voltage measurement or continuity measurement, or to enable or disable the beep of EF function. Table 12 S600VEFSEL pin selection...

  • Page 23: Calibration Scheme

    ES269 provide another calibration scheme and the most variable resistors could be ignored. When ES269 is at OFF-state, pull CALen (pin 88) to V- to active the calibration scheme after re-power on. When calibration scheme is active, the LCD segment of Unit of related measurement will be blinking.

  • Page 24: Serial Data Output

    ES269 6000 Counts Intelligent Auto-Function DMM IC Serial Data Output The serial data sent to RSOUT pin periodically at every A/D conversion cycle by 3 times per second. The data format complies with 8Bits transmission code with a baud rate of 9600. The host can use RS232 interface to read the data.
  • Page 25 ES269 6000 Counts Intelligent Auto-Function DMM IC The meter always outputs the current value shown on LCD screen to the serial port. The detailed data format of each packet is listed below. Header Device S_DP1 S_DP2 S_DP3 M_DP1 M_DP2 M_DP3...
  • Page 26 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. M_SIGN M_Digit3...
  • Page 27 ES269 6000 Counts Intelligent Auto-Function DMM IC MAX/MIN: When MAX/MIN mode is active. Danger: Abnormal applied voltage warning symbol is active on LCD. DISC: The ‘DisC’ is shown on LCD. It means the DUT is necessary to be discharged on Cap mode.

  • Page 28: Miscellaneous

    ES269 6000 Counts Intelligent Auto-Function DMM IC Miscellaneous The conditions which the meter turns on the buzzer include: ⚫ Changing measurement mode generates one beep. ⚫ Pressing any of the push functions generates one beep, if the function is valid.

  • Page 29: Lcd Configuration

    ES269 6000 Counts Intelligent Auto-Function DMM IC LCD configuration Table 16. LCD truth table SEG01 SEG02 SEG03 SEG04 SEG05 SEG06 SEG07 SEG08 SEG09 SEG10 SEG11 SEG12 PMAX μ Ω MINUS (main) SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24...

  • Page 30: Lcd Backplane Waveform

    ES269 6000 Counts Intelligent Auto-Function DMM IC LCD Backplane Waveform V- +3.2 V- +3.2 V- +3.2 V- +3.2 V- +3.2 LCD display on condition LCD annunciates Condition In AC voltage or AC current mode. MINUS (MAIN) Main minus symbol. In DC voltage or DC current mode.
  • Page 31 ES269 6000 Counts Intelligent Auto-Function DMM IC When HOLD function is enabled. When delay-hold is selected, the HOLD symbol HOLD will be blinking for 6 seconds. PMIN When MAX&MIN function is enabled In VAHZ frequency mode and the full scale range is in the order of KHz In VAHZ frequency mode.

  • Page 32: Application Circuit

    ES269 6000 Counts Intelligent Auto-Function DMM IC Application Circuit Crl+ Load Crl- Load Crl+ Load Crl- Load 2N2222 2N2222 AGND TEST5 TEST5 SGND LBAT BAT9 470nF 470nF PDRMS PDRMS MMXP OPO_G MMXP OPO_G SLEEP OPO_Y SLEEP OPO_Y LEDOUT OPO_R LEDOUT...
  • Page 33 ES269 6000 Counts Intelligent Auto-Function DMM IC Crl+ Load Crl- Load Crl+ Load Crl- Load 2N2222 2N2222 AGND TEST5 TEST5 SGND LBAT BAT9 470nF 470nF PDRMS PDRMS MMXP OPO_G MMXP OPO_G SLEEP OPO_Y SLEEP OPO_Y LEDOUT OPO_R LEDOUT OPO_R BKOUT...
  • Page 34 These protections are needed and these zener diodes must be soldered on PCB first before soldering ES269 on. ⚫ In order to automatically switch the measurement to A/mA in DMM mode, the input terminal must be designed to connect the DET_A/DET_mA pin to AGND when the test lead is inserted.

  • Page 35: Ac To Dc Circuit

    ES269 6000 Counts Intelligent Auto-Function DMM IC AC to DC circuit Figure 8. RMS IC (ES736) AVG Circuit R24 13K 4.7uF TEST5 + C13 D5 1N4148 D6 1N4148 ACVH 0.1uF ACVL Figure 9. Rectifier circuit Ver 1.2 22/02/24...

  • Page 36: Package Information

    ES269 6000 Counts Intelligent Auto-Function DMM IC Package Information 100 Pin LQFP Package Dimension Parameters Ver 1.2 22/02/24...

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