ES218

Cyrustek corporation

2000 Counts Manual DMM

Manufacturer: Cyrustek corporation

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 2,000 counts manual type DMM with LCD display  100L LQFP package  3V DC power supply  Fast ADC Conversion rate : 4 times/s for V/R modes  Manual type measurement ＊ V oltage measurement : 200mV/ 2V/20V/200V/ 1000V ＊ Current measurement : 20.00u/200.0u/2000u/20.00m/200.0m/20A ＊ Resistance measurement : 200/2k/20k/200k/2M/ 20M/200MΩ ＊ Capacitance measurement: 2n/20n/200n/2u/20u/200u/2m/20mF ＊ Not contact AC electric field detection ＊ Diode voltage measurement ＊ Continuity check  Auto frequency measurement mode 200.0Hz ~ 20.00MHz auto range  Hazardous AC/DC voltage (HV) indication  4 ADP modes for extension application  Temperature mode with internal scale translation circuit from 0C to 0F (1oC resolution)  K-type thermocouple reference table compensation (-200 ~ 1350oC range)  Push functions : ＊ MAX/MIN ＊ KEY function (AC/DC or oC/oF swap) ＊ Data Hold & Backlight function  Band-gap reference voltage output  Current mode overflow selection  V oltage mode overflow selection ( DC / AC : 1010V , DC / AC : 610V)  LCD segment check when power on  Auto power off ( 30min idle time )  Sleep state indicative signal output  Re-power on  On-chip buzzer driver  Low battery detection  Description ES218 is an integrated analog -to-digital converter with 2,000-count LCD, manual type DMM IC which is operated 3V DC power supply. Automatic range selection is provided for frequency measurement only. It could support AC/DC voltage measurement, resistance measurement, capacitance measurement, and AC/DC current measurement . Expensive and bulky mechanical range switches are not required. Other features include data holding, maximum and minimum value holding, diode measurement, temperature measurement, continuity checking, low battery detection, auto power off, re -power on, backlight driver and buzzer driver. Application  Manual type digital multimeter  Manual type digital clamp meter

V 1.5 2 2015/12/11 ES218

2000 Counts Manual DMM

 100L LQFP package NC1 NC2 NC3 NC 97 ADP 99 CI NT4 CAZ5 RAZ6 CRE FP7 VR10 OHMC114 O R115 V R516 V R417 V R318 V R219 OVSG20 V R121 mV in22 CRE FN8 V RH9 OVH24 SGND26 ADO30 TEST531 FRE Q37 ALARM38 BKOUT39 DISDGBP41 V ST42 SLEEP43 A SE L44 BP447 BP249 BP150 ANNUNC 52 CESEL40 AC VL27 BP348 AC VH28 ADI29 NC36 BUZIN46 OVX23 SEG1 4 54SEG1 3 55SEG1 2 56SEG1 1 57SEG1 0 58SEG0 9 59SEG0 8 60SEG0 7 61 HOLD 70 SEG0 6 62SEG0 5 63SEG0 4 64SEG0 3 65SEG0 2 66SEG0 1 67MMX 68KEY 69 S20uA 71O SC1 72 O SC2 78 FC4 82FC3 83 FC5 81 BUZOUT 79 FC2 84FC1 85SLACDC 86CP 87CN 88LB AT9 89V- 90V- 91V+ 92V+ 93DGND 94AGND 95AGND 96 VR _ADP11 OHMC213 OHMC312 NC25 CAP32 CAN33 R10K34 R1K35 DIOV45 NC 51 SEG1 5 53 NC 73NC 74NC 75 NC 76NC 77 FC6 80 NC 98 IVS 100 ES218

V 1.5 3 2015/12/11 ES218 Pin No Symbol Type Description 1-3 NC - Not Connected. 4 CINT O High-resolution integr ator output. Connect to integra te capacitor. (Metalized Polypropylene Film Capacitor type is recommended) 5 CAZ O High-resolution auto-zero capacitor connection. 6 RAZ O Buffer output pin in AZ and ZI phase. 7 CREFP O Positive connection for reference capacitor of A/D. 8 CREFN O Negative connection for reference capacitor of A/D. 9 VRH O Output of band-gap voltage reference. Typically –1.23V . 10 VR I Reference input voltage connection. Typically –400mV . 11 VR_ADP I Reference input voltage connection. Typically –400 mV . 12 OHMC3 O Filter capacitor connection for resistance mode. 13 OHMC2 O Filter capacitor connection for resistance mode. 14 OHMC1 O Filter capacitor connection for resistance mode. 15 OR1 O Reference resistor connection for 200.0Ω range

16 VR5 O V oltage measurement ÷10000 attenuator(1000V)

17 VR4 O V oltage measurement ÷1000 attenuator(200.0V) 18 VR3 O V oltage measurement ÷100 attenuator(20.00V) 19 VR2 O V oltage measurement ÷10 attenuator(2.000V)

20 OVSG O Sense low voltage for resistance/voltage measurement

21 VR1 I V oltage measurement Input. Connect to an accurate 10MΩ resistor. 22 mVin I Measurement input in 200.0mV mode. 23 OVX I Sense input for resistance / capacitance measurement. 24 OVH O Output connection for resistance measurement. 25 NC - Not Connected. 26 SGND I Signal Ground input.

27 ACVL I

Rectified signal lo w input in ACV/ACA mode. Connect to negative output of external AC to DC converter.

28 ACVH I

Rectified signal high input in ACV/ACA mode. Connect to positive output of external AC to DC converter. 29 ADI I Negative input of internal AC to DC OP Amp. 30 ADO O Output of internal AC to DC OP Amp. 31 TEST5 O Buffer output of OVSG . 32 CAP O Positive auto-zero capacitor connection for capacitor measurement. 33 CAN O Negative auto-zero capacitor connection for capacitor measurement. 34 R10K O Connect to a precise 10KΩ resister for capacitor measurement. 35 R1K O Connect to a precise 1KΩ resister for capacitor measurement.

36 NC - No connection

37 FREQ I Frequency counter input, offset V-/2 internally by the chip. 38 ALARM O HV signal detection in V oltage mode and EF mode indication output.

V 1.5 4 2015/12/11 ES218 Pin Description ( Continued ) Pin No Symbol Type Description

39 BKOUT O

Push Hold key lager than 2 sec. to enable the back light function. This pin will change from V- to V+ and lasts for 5 minutes. . Once press Hold key lager than 1 sec. again , this pin will change level back to V-. 40 CESEL I V oltage OL selection feature control pin. (1010V/610V) 41 DISDGBP I Control warning buzzer output at HV mode. Pulled to low and buzzer is disabled.

42 VST I

In µA or mA modes, it is used to control the ‘µ’ or ‘m’ sign. Set to V- to enable clamp current mode. The initial voltage range will be set to 200.0V range also. 43 SLEEP O Sleep mode indicator, asserts low in SLEEP mode.

44 ASEL I

Current mode OL indication for 2000A (VST = V -) or 20A (VST = Floating) ranges 45 DIOV I Pulled to V- to set the 2.8V OL level in diode mode measurement 46 BUZIN I Pulled to V- to enable the buzzer output (BUZOUT) always. 47-50 BP4-1 O LCD backplane 4 - LCD backplane1

51 NC - Not connected

52 ANNUNC O

Square wave output at the backplane frequency, synchronized to BP1. ANNUNC can be used to control display annunciator. Connect a LCD segment to ANNUNC to turn it on; connect an LCD segment to its backplane to turn it off. 53-67 SEG15 - SEG01 O LCD segment line 01 – 14. 68 MMX I Pulse to V- to enable MAX/MIN function. 69 KEY I Pulse to V- to change mode. 70 HOLD I Pulse to V- less than 1 second. to enable HOLD function. 71 S20uA I Pulled to V- to change 200.0uA to 20.00uA display

72 OSC1 - Connect to 4MHz crystal oscillator

78 OSC2 Connect to 4MHz crystal oscillator

79 BUZOUT O Outputs a 2KHz audio frequency signal for driving piezoelectric buzzer

80 FC6 I Switch 6 for function selection. 81 FC5 I Switch 5 for function selection. 82 FC4 I Switch 4 for function selection. 83 FC3 I Switch 3 for function selection. 84 FC2 I Switch 2 for function selection. 85 FC1 I Switch 1 for function selection. 86 SLACDC I Select initial DC/AC state. 87 CP O Positive capacitor connection for on-chip DC-DC converter. 88 CN O Negative capacitor connection for on-chip DC-DC converter.

V 1.5 5 2015/12/11 ES218 Pin Description ( Continued ) Pin No Symbol Type Description

89 LB AT 9 I

Low battery configuration. If 3V battery is used, connect it to DGND. The default low-battery threshold voltage is –2.3V . If 9V battery is used, the low battery enunciator is displayed when the voltage of this pin is less than VRH (-1.2V) 90 V- P Negative supply voltage. 91 V- P Negative supply voltage. 92 V+ O/P Output of on-chip DC-DC converter. 93 V+ O/P Output of on-chip DC-DC converter. 94 DGND P / G Digital ground. 95 AGND P / G Analog ground. 96 AGND P / G Analog ground. 97-98 NC - Not connected 99 ADP I Measurement input in ADP/Temp mode. 100 IVS I Measurement input in uA/mA/A current mode.

V 1.5 6 2015/12/11 ES218 Supply V oltage (V- to AGND) -4V Analog Input V oltage V- -0.6 to V+ +0.6 V+ V+ ≥ (AGND/DGND+0.5V) AGND/DGND AGND/DGND ≥ (V- -0.5V) Digital Input V- -0.6 to DGND +0.6 Power Dissipation. Flat Package 500mW Operating Temperature -20℃ to 70℃ Storage Temperature -45℃ to 125℃ Electrical Characteristics T A=23oC Parameter Symbol Test Condition Min. Typ. Max Units Power supply V- 2.4 -3.0 3.3 V Operating supply current In DCV mode IDD Normal operation — 1.8 2.2 mA ISS In sleep mode — — 10 µA V oltage roll-over error REV 10MΩ input resistor — — ±0.1 %F.S1 V oltage nonlinearity NLV Best case straight line CIL=MPR capacitor — — ±0.1 %F.S1 Zero input reading 10MΩ input resistor -000 000 +000 counts Band-gap reference voltage VREF 100KΩ resistor between VRH and AGND -1.30 -1.23 -1.16 V Open circuit voltage for 400Ω measurement V-=3V — -3.0 — V Open circuit voltage for other Ω measurement -1.19 -1.08 -0.97 V Low battery flag voltage V- to AGND ( LB AT 9 connected to GND) -2.4 -2.3 -2.2 V Internal pull-high to 0V current Between V- pin and HOLD, KEY , FC1-FC6, MMX — 1.2 — µA AC frequency response at 2.000V range ±1% — 40-400 — HZ ±5% (No compensated) — 400-2000 — Capacitance measurement accuracy 2nF – 200uF -2.5 — 2.5 % -3 — 3 counts Capacitance measurement accuracy 2mF – 20mF -3.5 — 3.5 % 5 — 5 counts Reference voltage temperature coefficient TCRF -20℃<TA<70℃ — 100 — ppm/℃ Note: 1. Full Scale.

V 1.5 7 2015/12/11 ES218

Operating Modes 1.1. Voltage Measurement A re-configurable voltage divider provides a manual range in voltage measurement mode. The 200.0mV range is independent and manual mode. It takes input signal from mVin (pin22). The other ranges take the input signal from VR1 (pin21). The following table summarizes the Full-Scale ranges in each configuration. Configuration Full Scale Range Divider Ratio Resister Connection Input Pin VR1 200.0mV 1 - mVin V.S. SGND VR2 2.000V 1/10 VR2 (1.111MΩ) VR1 V.S. SGND VR3 20.00V 1/100 VR3 (101KΩ) VR1 V.S. SGND VR4 200.0V 1/1000 VR4 (10.01KΩ) VR1 V.S. SGND VR5 1000V 1/10000 VR5 (1KΩ) VR1 V.S. SGND The ES218 support the hazardous live voltage warning. When the voltage measured exceeds the 30V, t he buzzer generates 2KHz beep and ALARM (pin38) drive high output (V+ level) periodically. It can remind the user to notice the hazardous voltage. The buzzer sound warning could be cancelled by DISDGBP (pin41). 1.1.1. OL Selection ES218 has a voltage OL selection feature archived by configuring the pin CESEL (pin40). In 1000V voltage mode, ES218 will show OL when the voltage is exceed the overflow level. If CESEL is connected to DGND, ES218 will have a 1010V overflow level in voltage mode. If CESEL connected to V-, the overflow level will be set to 610V in DCV and ACV mode. The configuration of CESEL is listed below. For ACV/DCV voltage modes: CESEL V- DGND Floating DCV 610V 1010V 1010V ACV 610V 1010V 760V

V 1.5 8 2015/12/11 ES218 1.2. Current Measurement For Multi-meter ES218 has 5 manual current measurement modes for multi -meter. The following table summarizes the full-scale range of each mode. When ES218 operates in the current measurement modes for multi-meter, it takes high input from pin IV S (pin100), low input from pin SGND and reference voltage from VR (pin10). Mode FC6 FC1~4 Full Scale Input Terminal 200.0uA2 0 0,0,0,1 20.00mV IVS V .S. SGND 2000uA 1 0,0,0,1 200.0mV IVS V .S. SGND 20.00mA 0 1,0,0,0 20.00mV IVS V .S. SGND 200.0mA 1 1,0,0,0 200.0mV IVS V .S. SGND 20.00A1 1 0,0,0,0 200.0mV IVS V .S. SGND Note: 1. Connect ASEL (pin44) to V- will set maximum readings of input for 20.00A mode to 10.00A. 2. Pulled S20uA (pin71) to V- to change 200.0uA to 20.00uA display. 1.3. Current Measurement For Clamp-meter ES218 supports 4 manual current measurement modes for Clamp meter application. The following table summarizes the Full-Scale range of each mode. It takes high input from IVS pin, low input from SGND and reference voltage from VR. Mode VST1 FC6 FC1~4 Full Scale Input Terminal 200.0A 0 0,0,0,1 20.00mV IVS V .S. SGND 2000A2 1 0,0,0,1 200.0mV IVS V .S. SGND 20.00A 0 1,0,0,0 20.00mV IVS V .S. SGND 200.0A 1 1,0,0,0 200.0mV IVS VS. SGND Note: 1. Connect VST to V- will disable the “µ2” / ”m2” symbol on LCD panel. 2. Connect ASEL to V- will set maximum readings of input for 2000A modes to 1000A.

V 1.5 9 2015/12/11 ES218 1.4. Resistance Measurement A re-configurable divider provides a manual Full-Scale range in resistance measurement mode. The following table summarizes the f ull-scale ranges and the reference r esistors in each configuration. Configuration Full Scale Range Relative Resistor Equivalent value OR1 200.0Ω OR1 100Ω OR2 2.000KΩ VR5 1KΩ OR3 20.00KΩ VR4 || VR1 10KΩ OR4 200.0KΩ VR3 || VR1 100KΩ OR5 2.000MΩ VR2 || VR1 1MΩ OR6 20.00MΩ VR1 10MΩ OR7 200.0MΩ VR1 100MΩ 1.5. Capacitance Measurement The following table summarizes the eight ranges of capacitance measurement mode. Configuration1 Full Scale Range Relative Resistor Measurement Period C13 2.000nF Ratio to C2 0.25 sec C22 20.00nF CAL 0.25 sec C3 200.0nF Ratio to C2 0.9 sec C4 2.000uF Ratio to C2 0.9 sec C5 20.00uF Internal matching 0.25 sec C6 200.0uF Internal matching 1.25 sec(max) C7 2.000mF Internal matching 2.5 sec(max) C8 20.00mF Internal matching 12.5 sec(max) Note: 1. In order to obtain an accurate reading, a capacitor must be discharged before measurement begins. The chip has a built-in discharge mode to automatically discharge the capacitor. In discharge mode, the main -display shows dIS.C. Discharging through the chip is quite slow. We recommend users to discharge the capacitor with some other apparatus. 2. The C2 range is calibrated in calibration scheme. 3. The C1 range residual offset could be compensated by the small capacitors near to OVH pin.

V 1.5 10 2015/12/11 ES218 1.6. Continuity Check Continuity check shares the same configuration with 200.0Ω manual resistance measurement mode and has buzzer output to indicate continuity. The buzzer generates 2KHz beep and ALARM (pin 38) drive high output (V+ level) whenever the reading is less than 30Ω. The ES218 built in a high speed short detection circuit and the detection period could be less than 10ms. 1.7. Diode Measurement Diode measurement mode shares the same configuration with 2.000V manual voltage measurement mode and has buzzer output to indicate continuity. The buzzer generates a 2KHz sound and ALA RM (pin 38) drive high output (V+ level) whenever the reading is less than 30mV . The source output voltage is the same as V+ terminal. If the test circuit is open or the voltage drop between the two ports of the diode under test is larger than 2V or 2.8V (depends on DIOV pin level), the LCD panel will show “OL”. DIOV DGND/Floating V- OL 2.000V 2.800V 1.8. Frequency Counter The time base of the frequency counter is derived from an external crystal oscillator by Tcounter = 2,000,000 Fosc Where Fosc is t he frequency of the crystal oscillator. Thus, the counter has a 1- second time base when a 4MHz oscillator is used. The frequency counter can select the proper range automatically or manually. Auto-range operation extends over six decades, from 200.0Hz to 20.00MHz. The following table summarizes the Full-Scale range of the frequency counter. Range Full Scale FR1 200.0Hz FR2 2.000KHz FR3 20.00KHz FR4 200.0KHz FR5 2.000MHz FR6 20.00MHz *If input frequency is less than 1.0Hz, ES218 will show 0.0Hz

V 1.5 11 2015/12/11 ES218 1.9. Electrical field detection mode (NCV) ES218 supports a non- contact AC voltage measurement, which is called electric field measurement also. The ADC input is configured from ADP pin vs. SGND. When no or less electric field is detected, the LCD display shows “EF”. If the electric field is detected, the strength will be 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 pin) will be output from ES218. 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. The input voltage is taken from ADP pin(99) and the reference voltage is taken from VR_ADP (pin11) Mode FC1~4 SLACDC / FC6 Full Scale Input Terminal EF 0,1,1,0 1,1 - ADP V .S. SGND ADP 100M EF test circuit EFin+ SGND AGND EFin- 100k VRADP -400mV

V 1.5 12 2015/12/11 ES218 1.10. Temperature Measurement mode Temperature measurement mode takes input signal fr om ADP pin. The ES218 has ºC to ºF scale translation circuit and standard K-type thermocouple reference table is built-in. External cold-junction compensation circuit is still necessary. Mode FC1~4 SLACDC / FC6 Range Input Terminal oC 0,1,0,0 1,1 -200 ºC ~ 1350 ºC ADP V .S. SGND oF 0,1,0,0 0,1 -328 ºF ~ 2462 ºF Temperature mode circuit example: LM 385_1.25V 2. 2K V + Q3 2N 3904 R4 15K R2 200KR1 1. 8K V R1 200 R5 10M R3 270 DIP 2N3904 Close to V/R/TEM P COM SW- SPDT ES218 AGND SGND ADP TEMPV / R V / R / TEMP SW- SPDT TEMPV / R R6 10K PTC 2.2K S GND TEMP 2N 2222 2N 2222 R9 1M R10 15K

V 1.5 13 2015/12/11 ES218 1.11. ADP ES218 provides 4 manual range ADP measurement modes for user define. The ADP pin is auxiliary input terminal for ADC of ES218. The full scale for ADP mode is 200.0mV. If FC5=0, the minus sign will not be shown on LCD segment. Mode FC1~4 SLACDC / FC6 Full Scale Input Terminal ADP0 1,0,0,1 1,1 2000 ADP V .S. SGND ADP1 0,0,1,1 1,1 200.0 ADP V .S. SGND ADP2 0,0,1,0 1,1 20.00 ADP V .S. SGND ADP3 0,1,0,1 1,1 2.000 ADP V .S. SGND Note: If FC5 is set to V-, the minus sign will be disabled. 1.12. Auto Power Off (APO) ES218 has a default auto power off function. If the meter is idle for more than the given idle time duration, the chip automatically turn s the power off. The idle time to trigger the auto power off function is set to 30 minutes. When APO is occurred , the state of the meter is reserved . The APO symbol on the LCD panel indicates whether the auto power off is enabled or not. In some cases, use r might want to disable Auto power off. There are two ways to disable this feature as following: 1. Power on the meter when any of the push functions, except for HOLD, is pressed down. Note: Powering on the meter while pressing HOLD and lasts 2 seconds turns on all LCD segments until HOLD is pressed again. 1.13. Sleep The meter enters sleep mode after auto power off. The SLEEP pin (pin43) asserts low (V-) in the sleep mode, and asserts high (V+, not 0V) after re-power on. 1.14. Re-Power On After auto power -off, pushing any of the push function or changing the rotary mode can turn on the meter again. If the meter is re-powered on by changing the rotary mode, the saved state is cleared. If the meter is re-powered on by push functions, the chip restores the saved state and enters HOLD mode. The LCD displays the saved value.

V 1.5 14 2015/12/11 ES218 1.15. Hazardous Voltage Indication The ES218 could provide the AC/DC hazardous voltage indication for voltage/resistor/ diode modes. Of course, the indication could support LCD symbol /LED /Buzzer dr iving simultaneously. Especially ES218 could detect the AC voltage in DCV mode and detects the DC voltage in ACV mode. It means if not proper AC or DC voltage signal exists on the DUT when DCV or ACV measurement mode is set, the HV indication will be still active. HV indication criterion Function / Range DC voltage (typ.) AC voltage (typ.) AC mV > +3V OL AC 4V > +20V OL AC 40V – 1000V > +100V > 30Vrms DC mV OL > 3Vrms (40-1kHz) DC 4V OL > 20Vrms (40-1kHz) DC 40V-1000V > +30V > 90Vrms (40-1kHz) Freq. mode > +40V > 30Vrms (40-1kHz) Res/Diode modes > +10V > 10Vrms (40-1kHz) Note: If AC+DC signal is applied, the voltage criterion will be changed. 1.16. Low Battery Voltage Detection

V 1.5 15 2015/12/11 ES218 ES218 provides a voltage detection input (pin 89 : LBAT9) for non-3V battery application. When LBAT9 is less than VRH terminal voltage, the LCD segment of low battery will appear. For 3V battery application, pull LBAT9 to DGND directly and the same detection will be made when V - is less than 2.3V . When the Low battery status lasts for 10 seconds, the LCD segment of low battery will be blinking. When the symbol is blinking for 20 seconds, the operation of meter will be inhibited and LCD panel will show “ Lo.bt”. In this case, it is suggested to replace a new battery immediately. After “Lo.bt” appears and lasts for 60 seconds, ES218 will enter to auto power off mode. 2. Measurement Mode Switching Low battery test (9V) 680K 270K BAT TER Y LBAT9 AGND 0.1u

V 1.5 16 2015/12/11 ES218 Measurement mode depends on the logic level of SLACDC, FC1, FC2, FC3, FC4, FC5, FC6 and KEY selection. When FC5/FC6 are high (kept floating), the measurement mode list is shown below: SLACDC FC1 FC2 FC3 FC4 Mode KEY selection 0 1 0 1 1 DC 200.0V DCV ↔ ACV 0 1 1 0 1 DC 20.00V DCV ↔ ACV 0 1 1 1 1 DC 200.0mV DCmV ↔ ACmV 0 1 1 1 0 DC 2.000V DCV ↔ ACV 0 0 0 0 0 DC 20.00A2 DCA ↔ ACA 0 1 1 0 0 20.00 MΩ ---- 0 1 0 0 0 DC 200.0mA23 DCmA ↔ ACmA 0 1 0 1 0 2.000 MΩ ---- 0 1 0 0 1 200.0 kΩ ---- 0 0 0 1 1 200.0 Ω ---- 0 0 0 0 1 DC 2000 uA23 DCuA ↔ ACuA 0 0 1 1 1 DC 1000V DCV ↔ ACV 0 0 0 1 0 Frequency mode (AUTO) ---- 0 0 1 1 0 2.000 kΩ ---- 0 0 1 0 0 1350 ℃ ℃ ↔ ℉ 0 0 1 0 1 20.00 kΩ ---- 1 1 0 1 1 AC 200.0V ACV ↔ DCV 1 1 1 0 1 AC 20.00V ACV ↔ DCV 1 1 1 1 1 AC 200.0mV ACmV ↔ DCmV 1 1 1 1 0 AC 2.000V ACV ↔ DCV 1 0 0 0 0 AC 20.00A2 ACA ↔ DCA 1 1 1 0 0 Continuity mode ---- 1 1 0 0 0 AC 200.0mA23 ACmA ↔ DCmA 1 1 0 1 0 Diode mode ---- 1 1 0 0 1 ADP0 (+2000)1 ---- 1 0 0 0 1 AC 2000uA23 ACuA ↔ DCuA 1 0 1 1 1 AC 1000V ACV ↔ DCV 1 0 1 1 0 EF mode ---- 1 0 1 0 0 2462 ℉ ℉↔℃ Note: 1. When FC5 is high, the ADP0, ADP1, ADP2 and ADP3 modes can display minus sign. 2. These modes could be designed for multimeter current modes, please refer to section 1.2. 3. These modes could be designed for clampmeter current modes, please refer to section 1.3. Measurement Mode Switching (Continued)

V 1.5 17 2015/12/11 ES218 Measurement mode depends on the logic level of SLACDC, FC1, FC2, FC3, FC4, FC5 and KEY selection. When FC5 is low (pulled to V -), the KEY function is disable d in most modes . The measurement mode list is shown below: (Note: FC6 is high) SLACDC FC1 FC2 FC3 FC4 Mode KEY selection & Remaks 0 1 0 1 1 DC 200.0V ---- 0 1 1 0 1 DC 20.00V ---- 0 1 1 1 1 DC 200.0mV ---- 0 1 1 1 0 DC 2.000V ---- 0 0 0 0 0 DC 20.00A2 ---- 0 1 1 0 0 20.00 MΩ ---- 0 1 0 0 0 DC 200.0mA23 ---- 0 1 0 1 0 2.000 MΩ ---- 0 1 0 0 1 200.0 kΩ ---- 0 0 0 1 1 200.0 Ω ---- 0 0 0 0 1 DC 2000 uA23 ---- 0 0 1 1 1 DC 1000V ---- 0 0 0 1 0 Frequency mode (AUTO) ---- 0 0 1 1 0 2.000 kΩ ---- 0 0 1 0 0 1350 ℃ ---- 0 0 1 0 1 20.00 kΩ ---- 1 1 0 1 1 AC 200.0V ---- 1 1 1 0 1 AC 20.00V ---- 1 1 1 1 1 AC 200.0mV ---- 1 1 1 1 0 AC 2.000V ---- 1 0 0 0 0 AC 20.00A2 ---- 1 1 1 0 0 Continuity mode ---- 1 1 0 0 0 AC 200.0mA23 ---- 1 1 0 1 0 Diode mode ---- 1 1 0 0 1 ADP0 (2000)1 ---- 1 0 0 1 1 ADP1 (200.0)1 ---- 1 0 0 0 1 AC 2000uA23 ---- 1 0 1 1 1 AC 1000V ---- 1 0 0 1 0 ADP2 (20.00)1 ---- 1 0 1 1 0 EF mode ---- 1 0 1 0 0 2462 ℉ ---- 1 0 1 0 1 ADP3 (2.000)1 ---- Note: 1. When FC5 is low, the ADP0, ADP1, ADP2 and ADP3 modes can’t display minus sign. 2. These modes could be designed for multi-meter current modes, please refer to section 1.2. 3. These modes could be designed for clamp-meter current modes, please refer to section 1.3. Measurement Mode Switching (Continued)

V 1.5 18 2015/12/11 ES218 Measurement mode depends on the logic level of SLACDC, FC1, FC2, FC3, FC4, FC5 and KEY selection. When FC6 is low (pulled to V -), the capacitance measurement and extra current measurement mode lists are shown below: SLACDC FC1 FC2 FC3 FC4 FC5 Mode KEY selection & Remaks 0 0 0 1 1 X 2.000 nF ---- 0 0 1 1 0 X 20.00 nF ---- 0 0 1 0 1 X 200.0 nF ---- 0 1 0 0 1 X 2.000 uF ---- 0 1 0 1 0 X 20.00 uF ---- 0 1 1 0 0 X 200.0 uF ---- 0 0 1 0 0 X 2.000 mF ---- 0 0 0 1 0 X 20.00 mF ---- 0 1 1 1 1 X Cap (AUTO) ---- 0 1 1 1 0 X 200.0 MΩ ---- 0 1 0 0 0 1 DC 20.00 mA12 DCmA ↔ ACmA 0 0 0 0 1 1 DC 200.0 uA12 DCuA ↔ ACuA 1 1 0 0 0 1 AC 20.00 mA12 ACmA ↔ DCmA 1 0 0 0 1 1 AC 200.0 uA12 ACuA ↔ DCuA 0 1 0 0 0 0 DC 20.00 mA12 ---- 0 0 0 0 1 0 DC 200.0 uA12 ---- 1 1 0 0 0 0 AC 20.00 mA12 ---- 1 0 0 0 1 0 AC 200.0 uA12 ---- Note: 1. These modes could be designed for multi-meter current modes, please refer to section 1.2. 2. These modes could be designed for clamp-meter current modes, please refer to section 1.3.

V 1.5 19 2015/12/11 ES218

Push Function All the enabled push functions will be reset when the measurement mode is changed when FC1-FC5 modes are changed . The following table lists the available function versus every measurement mode. Note: Push HOLD key and last for 2 seconds will active the back light output driver (BKOUT). 3.1. HOLD and BKOUT output Feature MMX KEY HOLD/BKLIT* Voltage mode O O O mV mode O O O Current Mode for Multimeter O O O Current Mode for Clampmeter O O O Resistance O X O Continuity O X O Diode mode O X O Frequency X X O Capacitance O X O Temperature O O O EF Mode X X O ADP mode O X O

V 1.5 20 2015/12/11 ES218 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 mo de makes the meter switch to manual mode, but the range remains the same. ES218 provides a backlight output feature. To activate backlight output feature, press down the HOLD key and last for 2 seconds. The meter will enable output from BKOUT. 3.2. KEY See Section “Measurement Mode Switching” for the function of this pin. 3.3. Max/Min + HOLD The meter displays the maximum or minimum value of the input in Max/Min mode. When MMX key is pressed for the first time, the meter displays the maximum value. The meter d isplays the minimum value, when it is pressed again. When MMX key is pressed for the third time, the meter displays current value. The meter returns to normal operation if MMX is pressed and held for longer than one second. Pressing HOLD in Max/Min mode makes the meter stop updating the maximum or the minimum value. 4. Miscellaneous Original state (Automatic/manual) “MAX” active max value “MIN” active min value hold max value. hold min value. Push HOLD Push HOLD 1 push<1 sec 1 push<1 sec 1 push>1 sec 1 push>1 sec 1 push<1 sec

V 1.5 21 2015/12/11 ES218 The conditions, which the meter turns on the buzzer, include: (1) Changing measurement mode generates one beep. (2) Pressing any of the push functions generates one beep, if the function is valid. (3) Power on and re-power on generate one beep. (4) Input overflow in voltage and current mode generates one beep every 0.3 seconds (or 3.33 beeps per second.) (5) Hazard voltage indication is active generates one beep per second and could be disabled by DISDGBP pin. (6) Continuity(diode) check generates a continuous 2KHz beep whenever the measurement is less then 30Ω(30mV) (7) Auto power off generates a 2KHz beep which lasts for 1.5 seconds. The following figures show the output waveform from the BUZOUT pin. 0.5 mS (a) Continuous 2KHz beep 0.3 sec 0.15 sec (b) 3.33 beep/sec 4.1. LCD Panel

V 1.5 22 2015/12/11 ES218 S01 S02 S03 S04 S05 S06 S07 S08 S09 BP1 AUTO 4B 3A 3B 2A 2B 1A BP2 APO AC 4A 4G 3F 3G 2F 2G 1F BP3 DANGE MINUS 4F 4C 3E 3C 2E 2C 1E BP4 LBAT DC 4E 4D DP3 3D DP2 2D DP1 S10 S11 S12 S13 S14 S15 BP1 1B BUZZER HOLD μ2 M n BP2 1G DIODE MAX m2 K μ1 BP3 1C ℃ MIN V Ω m1 BP4 1D ℉ ADP A Hz F LCD Backplane Waveform 4.2. LCD Display On Condition BP1 BP2 BP3 BP4 V- +3.1 V- +3.1 V- +3.1 V- +3.1

V 1.5 23 2015/12/11 ES218 V In voltage measurement mode, and diode measurement mode. A In current measurement mode. Ω In resistance measurement mode, and continuity mode. F In capacitance measurement mode. m1 In capacitor measurement mode and the full scale range is in the order of mF. µ1 In capacitor measurement mode and the full scale range is in the order of uF. n In capacitor measurement mode and the full scale range is in the order of nF. In continuity check mode. In diode mode. Hz In frequency mode. ADP When ADP0-3 mode is active. DC In DC voltage or DC current mode. AC In AC voltage or AC current mode. AUTO When automatic full scale range selection is enabled. (Hz or Cap Auto mode) HOLD When HOLD function is enabled. MAX When MAX function is enabled. MIN When MIN function is enabled. m2 In voltage or current measurement mode and the full scale range is in the order of 10-3. µ2 In current measurement mode and the full scale range id in the order of uA. M In resistance measurement mode and the full scale range is in the order of MΩ. K In resistance measurement mode and the full scale range is in the order of KΩ. ℃ In temperature measurement mode and when the unit is ℃ . ℉ In temperature measurement mode and when the unit is ℉. (HV) When the reading is exceeding default hazardous live voltage or OL in DCV or ACV , or not proper voltage applied on Res/Cap/Diode/Hz modes, the HV warning symbol will be displayed. APO When auto power off function is enabled. LB AT When battery voltage is too low

V 1.5 24 2015/12/11 ES218

4.3 Operating Timing

ES218 incorporates a dual slope ADC with four phases: ZI, AZ, INT and DINT. The timing of each phase is listed below. (1) V oltage / Diode /ADP Phase High resolution ZI 20ms AZ 20ms INT 100ms DINT 110ms (2) Current mode for multimeter/Auto Current mode for clampmeter: Phase DC / AC DC Lower Range DC/AC 999.9A ZI 50ms 20ms 20ms AZ 25ms 20ms 20ms INT 100ms 1000ms 100ms DINT 110ms 110ms 260ms (3) Continuity / Ohm measurement: Phase Time Time (200M) ZI 20ms 20ms AZ 20ms 20ms INT 25ms 25ms DINT 185ms 585ms (4) Frequency : Every conversion takes 1.05 second. (5) Temperature measurement: Phase Time ZI 20ms AZ 20ms INT 500ms DINT 210ms Note: 1. In the frequency measurement with auto mode, if the range is changed, the internal clock rate will increase ten times and the new measurement cycle becomes 1/10 times of the original cycle until the range is stable.

V 1.5 25 2015/12/11 ES218  Application Circuit 1. AV G Circuit 123456 A B C D 6 5 4 3 2 1 D C B A Title Num be rRev ision Size B Date:11-Nov-2015Shee t of File:D:\\Protel 99\\Protel file\\K A055 \\KA0 55.dd bDrawn B y : ES218 ( AVG ) Demo Board Circuit Jack Chang ES218 SW9 FC5 SW1 0 FC4 SW7 SLACDC FC4 FC5 SLACDC V - SW1 1 FC3 SW1 2 FC2 SW1 3 FC1 FC1 FC2 FC3 SW1 8 MAXMIN MMX V - SW1 9 KEY SW2 0 HOLD HOLD KEY SW8 FC6 FC6 R310K R40 15K R41 15K TEST5 ADI ACVH ACVL +C18 1uF+ C19 1uF 0.1uF R4656K R4556K D61N 4148 D51N 4148 V R510K C2010uF SW1uA SW3 mA uA/ mA uA mA A R18 0. 99 R19 0. 01 BZ1 Bu zze r V - R110K R210K B UZOUT 2N 3906 BKOUT R5100K V - B KOU T R10100 HV R6100K V - AL ARM R11100 2N 3904 2N 3904 + C2 10uF + C310uF Z R2 7. 5V V + C50.1uF C40.1uF Z R15. 6V SW2 Pow er S witch V - Ba t- Ba t+ Metallized Polyester Capacitor : C11 R8100K ADO SW1 7 EF Mo de ADP mVi n Q11 2N 2222 Q10 2N 2222 R292. 2K P TC OVX R302. 2K P TC R17200K OVH R3410M / 1000V R9100K 2N 2222 2N 2222 2N 2222 2N 2222 C21 220pF Close t o IC C22 0-100pF R43200 C101uF 2N 3904 Q12 2N 2222 FREQ R42200 V R8 50KR44220K SW1 4mV in SW2 3FREQ DISDG BP BUZIN V ST BUZOUT BKOU T A SEL SEG12 SEG13 SEG14 SEG08 SEG09 SEG10 SEG11 SEG04 SEG05 SEG06 SEG07 SEG03 SEG02 SEG01 BP4 BP3 BP2 BP1 C ESEL AL ARM

4 MH z

C12220nF 10% C11220nF 10% C13220nF 10% VRH C91uF C833nF R2399.7 R241K R2510.01 R26101K R271.111M OVSG NC 1 NC 2 NC 3 NC 97 ADP 99 CI NT4 CAZ 5 RAZ 6 CRE FP7 VR 10 OHMC114 O R1 15 V R5 16 V R4 17 V R3 18 V R2 19 OVSG 20 V R1 21 mV in 22 CRE FN8 V RH 9 OVH 24 SGND26 ADO30 TEST531 FRE Q37 ALARM38 BKOUT39 DISDGBP41 V ST42 SLEEP43 A SE L44 BP447 BP249 BP150 ANNUNC52 CESEL40 AC VL27 BP348 AC VH28 ADI29 NC36 BUZIN46 OVX 23SEG1 454 SEG1 355 SEG1 256 SEG1 157 SEG1 058 SEG0 959 SEG0 860 SEG0 761 HOLD70 SEG0 662 SEG0 563 SEG0 464 SEG0 365 SEG0 266 SEG0 167 MMX68 KEY69 S20uA71 O SC172 O SC2 78 FC4 82FC3 83 FC5 81 BUZOUT 79 FC2 84FC1 85SLACDC 86CP 87CN 88LB AT9 89V- 90V- 91V+ 92V+ 93DGND 94AGND 95AGND 96 VR _ADP11 OHMC213OHMC312 NC 25 CAP32 CAN33 R10K34 R1K35 DIOV45 NC51 SEG1 553 NC73 NC74 NC75 NC 76NC 77 FC6 80 NC 98 IVS 100 ES218 C722nF SEG15 FC6 C17 470nF 10% DIOV SLEEP ACVL ACVH ADO ADI TEST5 SW5 ADP SW6 Temperature V R6 R39 900 R38 9K Precision Resistors Op tional VIN V R7 200 R22 56KR37 6.8KV R4 10K +C16 4.7uF R21 56KR36 24K V R3 10K +C15 4.7uF R20 56KR35 24K V R2 10K +C14 4.7uF V/R/TEMP COM IVS mVi n OVX OVH VIN FREQ R7100K D2 D1 EF V - BT1 DC 3.0V Precisio n Res istors Precision Resistors 7Copper A rea Q13 2N 2222 SW2 1OVX SW2 2OVH mV Mo de R/S /D/C Mod e Frequency Mode SW1 5 T em pera ture Mod e SW4 TEM P _ COM SGND For T em pera ture F o r D MM LM 385_1.25V R33 V + Q142N 3904 R1415K R16200K R151. 8K V R1100 R3210M R12270 DIP 2N3904 Cl ose t o H1C TEM P _ COM R1315K R311M R2840M ~ 60M SW1 6 T em pera ture Mod eQ5 2N 2222 S40uA

V 1.5 26 2015/12/11 ES218  Package Information  100L LQFP Outline drawing Dimension parameters

Product Information

ES218 specifications and overview.

Summary

2000 Counts Manual DMM

Description

2000 Counts Manual DMM

Source title ES218 Datasheet(PDF) - Cyrustek corporation

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