LCR METER and DUAL MULTIMETER MODULE FCALLBOX

Description

This board LCR METER and dual multimeter is used by Universal Measurement System FCALLBOX described here

- Le Dual multimeter has the features :

Voltmeter DC :

- Ranges : 250mV, 500mV, 1V, 2V, 10V, 25V, 50V, 500V (but do not apply more than 200V for security reason).

- Auto range.

- Precision : < 0.5%, see measurements results here U1 and U2.

- Input impedance : 4.7M for the 4 hightest ranges 10M for others.

Amperemeter DC :

- Inputs : 1 , 10A.

- Ranges : Input 1A : 125mA, 250mA, 500mA 1A.

- Ranges : Input 10A : 1.25A, 2.5A, 5A, 10A.

- Auto range.

- Precision : < 0.5%.

- Input impedance :2R for 1A input, 50mR for 10A input.

- Le LCRMeter has the features :

Measure resistance, capacitance, inductance

Resistor Range : xx mR à xxM

capacitance Range : xx pF à xx MF

inductance Range : xx uH à xx H

Frequency ; 100HZ, 120Hz, 1KHz, 10KHz, 100KHz.

Test voltage : 0.1Vpp to 5Vpp.

Test current : xxmA max.

Display : R, L, C, D, Q, angle.

Measurement rate : x/s

Summary

• Schematic

• BOM

• PCB

• Assembly

• Cabling

• 3D file

Schematic

Download here the schematic

BOM

Ref Description Vendor / reference Price MULTI Price LCR C1,C3,C4,C5,C8,C9,C11,C12,C13,C14,C18,C19,C20,C22,C24,C26,C27,C28,C29,C32,C34,C35,C37,C41,C42,C44, C45,C46,C48,C51,C52,C53,C54,C56,C57,C58,C59,C60,C62,C63,C65,C69,C71,C72,C75,C76,C78,C79,C80,C81, C86,C89,C94,C99,C103,C105,C111,C112,C115,C118,C121 Capacitor 100nF 50V 10% X5R 0603 All brands ---- ---- C2,C6,C7,C10,C15,C16,C17,C21,C23,C25,C30,C31,C33,C36,C38,C39,C40,C43,C47,C50,C66,C67, C73,C74,C77,C82,C83,C85,C90,C91,C92,C93,C102,C104,C106,C107,C108,C113,C114,C116,C117,C119,C120,C122 Capacitor 10uF 6.3V 10% X5R 0603 All brands ---- ---- C84 Capacitor 220pF 50V NPO 0603 All brands ---- ---- C49,C61,C64 Capacitor 3.3pF 50V NPO 0603 All brands ---- ---- D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,D11,D12,D13,D18,D21,D22,D23,D24 Diode schottky SDO323 BAS416 NXP 18 x 0.03€ xx x 0.03€ R2,R16,R30,R31 Resistor 9K1 1% 0603 All brands ---- ---- R10,R15,R32,R33,R63 Resistor 100KR 1% 0603 All brands ---- ---- R3,R4,R5,R7,R8,R72,R73,R75,R77,R79 Resistor 4K7 1% 0603 All brands ---- ---- R9,R25,R27,R46,R47,R51,R52,R53,R54,R64,R66,R70,R74,R76,R78,R80 Resistor 100R 1% 0603 All brands ---- ---- R1,R17,R18,R20,R28,R29,R38,R39 Resistor 4M7 1% 1206 All brands ---- ---- R11,R14,R34,R35 Resistor 180K 1% 0603 All brands ---- ---- R12,R13,R36,R37 Resistor 510K 1% 0603 All brands ---- ---- R65,R88,R89,R91,R97 Resistor 10K 1% 0603 All brands ---- ---- R68 Resistor 1K 1% 0603 All brands ---- ---- R19,R44 Resistor 47K 1% 0603 All brands ---- ---- R98,R99 Resistor 0R 1% 0603 All brands ---- ---- R21,R45 Resistor 2K4 1% 0603 All brands ---- ---- R24,R42 Resistor 3K3 1% 0603 All brands ---- ---- R22,R40 Resistor 15KR 1% 0603 All brands ---- ---- R87,R92 Resistor 30KR 1% 0603 All brands ---- ---- R90,R96 Resistor 3K3 1% 0603 All brands ---- ---- R26,R43 Resistor 2K2 1% 0603 All brands ---- ---- R23,R41 Resistor 1K5 1% 0603 All brands ---- ---- L1,L2,L3,L4,L5,L6,L7,L8 inductor 22uH or 100uH 150mA 1210 EPCOS B82422A1223K100 / TAIYO YUDEN CBC3225T101KR or equivalent 6 x 0.2€ 6 x 0.2€ U6,U9,U12,U14,U15,U16,U22,U32,U34 Instrumentation Amplifier AD8226 SOIC8 AD8226BRZ Analog Device 9 x 5.5€ ---- U37 LT1818 AOP 400MHz single SOT23-5 Analog Devices LT1818CS5#TRMPBF ---- 1 x 2.6€ U3, U13 Voltage reference 2.5V low noise SOT23 MAX6066AEUR ADI / Maxim 2 x 5.78€ ---- U4, U17 Charge pump invertor ICL7660 SO8 SO8 Intersil ICL7660CBAZ or equivalent 2 x 1.8€ ----- U35 Charge pump invertor SP6661EN SO8 MaxLinear SP6661EN or equivalent ----- 1 x 0.9€ U5, U20 isolator I2C ISO1541D ISO1541D TEXAS INSTRUMENTS 2 x 3.3€ ---- U2,U38 Quad ADC 18bits MCP3424 SOIC-14 Maxim MCP3424x-xSL 1 x 4.7€ ---- U7 LDO 3.3V 500mA SOT23-5 SPX3819M5-L-3-3 or MIC5504-3.3YM5-TR 1 x 0.4€ ---- U27, U33 PCF8574 I2C extender SSOP20 Texas Instruments PCF8574PWR or NXP PCF8574TS or PCF8574ATS< ---- 2 x 1.7€ U8, U18 PCF8574 I2C extender SSOP20 Texas Instruments PCF8574PWR or NXP PCF8574TS oru PCF8574ATS 2 x 1.7€ ---- U29, U30 PGA103 amplifier PGA 1 10 100 SO8 TI PGA103U ---- 2 x 9€ U10,U19 temperature sensor TC1047AVNBTR SOT23 Microchip TC1047AVNBTR ---- 2 x 0.7€ U1, U11 74HC4052 SO16 NXP 74HCT4052D 2 x 0.62€ ---- U21, U26, U28 74HCT4052D SOIC16 NXP 74HCT4052D ---- 3 x 0.5€ PS1, PS2 DC DC isolated 5V to 5V RECOM RBE-0505S 2 x 3.1€ ---- J2 Connector male RA 2x19 2.54mm All brands ---- ---- J1,J3,J4,J5,J6,J7,J9 Connector SMA RA TE CONREVSMA002 or equivalent 7 x 2.1€ ---- J8 Connector male Shrouded 2x8 2.54mm MOLEX 70246-1602 or equivalent 1 x 3.1€ ---- M1 PCB F00132 100x100mm 4 layers All brands 1 x 7€ (for 5pcs) ----

Price HT estimated in 2024 (Mouser) : xx€ HT n

PCB

The PCB F00132, 4 layers has dimensions 100x100mm.

Download here the manufacturing files

Board Assembly

Do not mount components in pink in orange (NE).

Top view

Download here the assy (pdf format)     

Picture

Board cabling

Detailled view (Cabling Multimeter and LCR section) ici

3D file

Download here 3D file (STEP format)