FCC ID: 2AWKW-N2B0101 Wireless Multimeter

N 2 - N e u r o n U S E R S MA N UA L 2 N Curien LLC Los Angeles California May 2020, Rev 1 2020 Curien LLC, All Rights Reserved INTRODUCTI ON The N2 - Neuron by Curien is the automotive industrys first compact 2 channel bluetooth graphing multimeter connected to a smart device application that allows for both the initial information to be read and received, but also is opening the gateway into the future of data intelligence and interpretation. The N2 - Neuron gets its name from the fact that it is a Neuron or node connected to the smart device application and it can be one of many that can be connected to the application to provided data for interpretation and analysis to give the user intelligent data; the 2 is because it is a 2 channel Neuron in this intelligent system;

this is the first set towards data intelligence. The N2 - Neuron Dual Channel Graphing Multimeter (hereafter The Meter) is a battery powered multimeter capable of handheld and remote usage via Bluetooth Low Energy. This manual details how to safely use your N2 - Neuron. The Meter meets CAT III IEC 61010-1 3rd edition and 61010-2-030 standards. Overvoltage category III (CAT III) defines a level of safety appropriate for the transient overvoltages present in fixed equipment installations at the distribution level. This includes the mains installation of a building, distribution boards, busbars, and permanently connected equipment. Do not use this multimeter for CAT IV circuits, which includes any mains circuits not protected by a buildings breakers N2 - Neuron (1) o 1.5V AA Alkaline Batteries installed (2) o 12A HRC fuse installed (1) Test Leads (3) Alligator Clip Attachment (3) Carrying case (1) PACKAGE CONTENTS SAFETY INFORMATION WARNING Denotes a potentially hazardous situation that may result in injury or death CAUTION Denotes a potentially hazardous situation that may result in damage to the meter NOTE Denotes a situation that may result in degraded or incorrect measurement Use caution in the operation of this device. Improper use may result in injury or death. Read this user manual before operating the meter Always remove leads before opening the case. Do not operate the meter unless it is fully assembled with both case screws tight. Only use appropriately rated fuses. Always check for damage before use. Pay special attention to the test leads for signs of damaged insulation or exposed conductors. Immediately replace damaged leads. Only use test leads that are rated to at least CAT III 600V Keep fingers behind the guards on the leads. Use caution working with voltages above 30VAC rms, 42VAC peak, or 60VDC. Voltages this high pose risk of shock. Never apply more than 600V between any terminal and earth ground. Do not apply more than 2.0V to the auxiliary terminal with respect to Common. Doing so may draw unexpected current and trigger protection circuits. In this event, basic functionality will automatically return within one minute. Accuracy may be adversely affected for up to five minutes. Error messages may appear on the user interface. Read these messages for further information. TABLE 1 SYMBOLS Caution: Risk of Electric Shock. Refer to operating instructions. Important Information: Refer to operating instructions. CAT III This instrument is rated for installation category III per IEC 61010. Double Insulation Terminal protected by fuse. Current limit of 10A RMS. Conforms to European Union Directives Do not exceed 600V with respect to ground. 2 N TABLE 2 TERMINALS Terminal C A V Description Common terminal for all measurements Input terminal for measuring currents to 10A RMS (AC and DC) Input terminal for measuring voltages to 600V RMS (AC and DC) Input terminal for measuring resistance, diode drop, and voltages up to 1.2V BASIC MEASUREMENT INSTRUCTIONS MEA SURING VOL TAGE 2 N WARNING Risk of Electrocution. For determining whether a circuit is live exercise caution if the meter does not report a voltage. This may indicate a poor connection to the circuit being tested. Make sure the probe tips are fully in contact with the circuit before assuming the circuit is safe. Two of the N2 - Neurons input terminals are capable of making basic voltage measurements:

The V terminal can measure up to 600V RMS and is intended for traditional AC and DC voltage measurements. The terminal can measure up to 1V peak (~0.7V RMS for pure-

sine AC) and allows for several new measurement techniques described later in this manual. See the ratings section for further details on the measurement ranges. FIGURE 1 BASIC VOLTAGE MEASUREMENT MEASURING CURRENT WITH INTERNAL CURRENT SHUNT 2 N WARNING Exercise care when connecting in series with a circuit, especially those containing motor(s). Sudden disconnects may create higher than expected voltages due to inductive kick. WARNING Perform a Fuse Check before measuring currents with the internal current shunt. Exercise caution in determining whether a circuit is live if the meter does not report a current. This may indicate either a poor connection or a blown fuse. NOTE AC current range is limited by the instantaneous current. Peaks above the listed limits will result in incorrect readings. Derate AC current limits with high crest factors accordingly. Disconnect power from the circuit to be measured. Break the circuit and wire the meter in series through the A and C terminals. Positive DC current flows into the A terminal. FIGURE 2 BASIC CURRENT MEASUREMENT MEASURING CURRENT WITH AN EXTERNAL CURRENT SHUNT WARNING This measurement mode is capable of measuring currents many orders of magnitude larger than is typically possible with a handheld meter. Exercise caution while interfacing to high ampacity circuits. NOTE The accuracy of this measurement mode depends on the accuracy of the external current shunt used. Account for this accuracy dependency in your measurements. The terminal can measure small voltages, with a resolution of as fine as 25nV per count and a noise floor as low as 1V. This can be used to with external current shunts to measure currents over a very wide dynamic range. See the ratings section to guide shunt size selection. It is possible to use the existing wiring for the current shunt, and in doing so take rough current measurements without breaking the circuit. With very low voltages it is recommended to minimize the loop area of the measurement probes by either twisting them together or using a BNC adaptor. 2 N FIGURE 3 EXTERNAL CURRENT SHUNT MEASURING RESISTANCE NOTE Do not measure resistance on a live circuit. Doing so will result in incorrect readings and may engage the internal protection circuitry. Should this occur, wait 5 minutes before taking further measurements. Resistance is measured between the and C terminals. Polarization is not important. The meter uses a 100nA test current in its M ranges and a 100uA test current in its k ranges. 2 N FIGURE 4 RESISTANCE MEASUREMENT DIODE TESTING NOTE Do not use the diode test functionality while connected to a live circuit. Doing so will result in incorrect readings and may engage the internal protection circuitry. Should this occur, wait 5 minutes before taking further measurements. To test diodes or other silicon junction devices, a test current is pushed through the device under test and the resulting voltage is measured. Positive test current flows out of the terminal and into the C terminal The test current is 100A. 2 N FWD REV FIGURE 5 DIODE MEASUREMENT USING A BNC ADAPTER The 4 terminals are arranged with 0.75 spacing to allow for use of a standard BNC adapter. Measurements using the A or terminals can be used with the C terminal as usual. To use a BNC adapter with the V input, use the A terminal as the common input. The A and C terminals are internally connected with a low impedance (<=20mOhms). 2 N 2 N 2 N FIGURE 6 BNC ADAPTORS FOR , V, A INPUTS Your N2-Neuron is capable of reading any two of its three channels simultaneously. TWO CHANNEL MEASUREMENTS NOTE Measurements using the internal current shunt will experience a degree of cross-talk due to the impedence of the Common lead. Other measurement types will also experience this cross-talk, but it should be negligible. MEASURING SMALL RESISTANCES / CALIBRATING A CURRENT SHUNT The N2-Neuron can be used to measure small resistances in a live circuit. The meter simultaneously measures the current and the corresponding voltage with the precision voltage channel

(), and then finds the slope to calculate resistance. This can be done with either the internal current shunt or an external current clamp. Using a current clamp allows the measurement to be done without breaking the circuit and allows for test currents above 10 Amps. Wire the meter in as shown and enable the measurement mode. Apply a test current and run the analysis. The analysis works best with several points along the curve. Therefore, the optimal test current has a large magnitude and a strong time-varying component below 1kHz. Often this test current can be the current already present within the system due to normal operation. For example, an AC systems steady state or a DC systems startup transient may provide sufficient data. 2 N FIGURE 7 CURRENT CLAMP AND CURRENT SHUNT COMPARISON POWER FACTOR Power factor compares apparently power and actual power, and is a measure of how effectively a load uses available power. This measurement requires voltage and current measurements. Current measurement can be done with either internal or external current shunt mode. Power Factor is a unitless measure, so the gain accuracy of the measurements does not affect the measurement accuracy. Therefore, the existing wiring can be used as an external current shunt without calibration. 2 N MAINTANENCE OPENING THE N2-NEURON WARNING To avoid electric shock, disconnect test leads from the meter before opening the meter 1. Disconnect all test leads. 2. Unscrew both retaining screws from the bottom of the case with a Phillips head screwdriver. 3. Separate the two halves. 4. Taking special care not to bend the circuit board, grasp the circuit board as shown near the connectors and pull it out of the top half of the enclosure. 5. Your N2 - Neuron is now fully disassembled. The batteries, fuse and reset button are now accessible. CLOSING THE N2-NEURON WARNING Risk of electrical shock. Do not operate the meter while partially disassembled. 1. Place the PCB in the bottom enclosure half. Use the J shaped fin for alignment with the corresponding cut-out in the PCB 2. Close the two halves together. 3. Replace both screws. Tighten firmly BATTERY REPLACEMENT 1. 2. 3. 4. 5. Open the N2 - Neuron per directions above. Remove old batteries. Observe the battery polarity indication on the circuit board. Insert 2 new AA 1.5V batteries as shown on the circuit board. If you have inserted the batteries with the correct polarity, the N2 - Neuron's LED will blink slowly several times before turning off. If the light does not blink, check the battery polarity. Close the N2 - Neuron per directions above. Gently wipe the assembled meter with a damp cloth. Do not touch or apply cleaning agents to the circuit board. CLEANING Do not use any solvents or other cleaning agents while cleaning your N2 - Neuron. The outer housing is a polycarbonate based material, and may be damaged by incompatible cleaners. FUSE TEST WARNING Always perform a Fuse Test before using the internal current shunt measurement mode. 1. 2. Perform a resistance measurement with the C and terminals connected If the resistance measured is greater than 0.5, replace the fuse*

* The resistance mode on the N2 - Neuron is not accurate below 1. The actual resistance of the fuse should be 20m. FUSE REPLACEMENT WARNING Only use appropriately rated replacement fuse. 1. 2. 3. 4. Open the N2 - Neuron per directions above. Gently remove existing fuse from holder. Replace fuse only with appropriately rated replacement. Recommended model:

Reomax 632.300.12, available from Curien LLC Size 3AG 12A hold 600V 10kA minimum interrupt 5. Close the N2 - Neuron per directions above. 2 N FIGURE 8 FUSE TEST REPLACING THE SD CARD WARNING To avoid electric shock, disconnect all leads from the meter. NOTE Only use FAT32 formatted SD cards up to 32 gigabytes. Larger SD cards or cards formatted differently cannot be written to. 1. 2. 3. 4. 5. 6. Open the N2 - Neuron per the directions above. Press the SD card further into the slot until you feel a click. Release: The SD card will eject. Remove old SD card and insert new SD card. Push card in with finger until you feel a click Close the N2 - Neuron per the directions above. WARNING To avoid electric shock, disconnect all leads from the meter RESETTING THE N2-NEURON 1. Open the N2 - Neuron per the directions above. 2. 3. Press and Hold the button shown for 5 seconds Close the N2 - Neuron per the directions above GENERAL SPECIFICATIONS Accuracy is specified for 1 year after calibration within 18 to 28C. Accuracies listed are for single-channel measurements only. Multi-

channel measurements may degrade accuracy. For extended specifications visit www.curienllc.com All AC ranges are RMS assuming a pure sinusoid (crest factor ). Derate ranges linearly with increasing crest factor Maximum Voltage between any terminal and earth ground Surge Protection Fuse for A input Operating Altitude Maximum Temperature Range Nominal Temperature Range Input Power Battery Battery Life Size Weight Safety Compliance Pollution Degree RF Communications RF Communication Range Electromagnetic compatibility 600V 6kV peak per IEC 61010 -1 600V CATIII 12A Reomax 632.300.12 Up to 2000m 5C to 40C 18C to 28C. Derate accuracy outside of this range 3V 100mA from installed batteries 2x AA Alkaline, NEDA 15A IEC LR6 1 year typical standby 50 hours typical continuous active use 1.75 x 4.5 x 1.25 4.3 oz EN61010 -1:2010 Measurement Category III 600V EN61010 -2-030 2 2.4 GHz ISM Band Bluetooth Low Energy Free Space: Up to 50m FCC Part 15.247 Subpart C ETSI EN 300 -328 V1.7.1 EN 61326 -1:2013 per EN 55011:2009 + A1: 2010 / Class A Radiated Emissions EN 61326 -1:2013 / ETSI EN 301 -489 -1 V1.9.2 / EN 301 -489 -17 V2.2.1/ Immunity Testing Voltage, Terminal V :

Current, Terminal A:

DC Range AC Range Resolution Noise Floor DC Range AC Range Resolution Noise Floor 600 V 600 V 455 V 365 V 260 V 200 V 135 V 60 V 40 V 30 V 25 V 18 V 14 V 9 V 1000 mV 670 mV 500 mV 400 mV 280 mV 220 mV 150 mV 600 V 430 V 320 V 255 V 185 V 140 V 95 V 45 V 30 V 22 V 18 V 12 V 10 V 6 V 700 mV 475 mV 350 mV 275 mV 200 mV 150 mV 100 mV 275 V 140 V 95 V 70 V 50 V 35 V 25 V 20 V 10 V 6.4 V 4.8 V 3.2 V 2.4 V 1.6 V 300 nV 150 nV 100 nV 75 nV 50 nV 40 nV 25 nV Accuracy

(%+counts) 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 9 mV 5 mV 3 mV 3 mV 2 mV 1090 V 730 V 610 V 305 V 205 V 155 V 105 V 80 V 55 V 10 V 5 V 4 V 3 V 2 V 2 V 1 V 10 A 8.5 A 6 A 5 A 3.5 A 2.75 A 1.75 A 9 A 6 A 4.5 A 3.5 A 2.5 A 2 A 1.25 A 3.8 A 1.9 A 1.3 A 1 A 0.7 A 0.5 A 0.4 A 120 A 60 A 40 A 30 A 20 A 15 A 10 A Accuracy

(%+counts) 0.5 + 50 0.5 + 50 0.5 + 50 0.5 + 50 0.5 + 50 0.5 + 50 0.5 + 50 Range Resolution Noise Floor Accuracy

(%+counts) Resistance 9 M 8 M 6 M 4 M 3 M 2 M 9.6 k 8.2 k 6.1 k 4.1 k 3 k 2 k 1.5 1 750 m 500 m 375 m 250 m 1.5 m 1 m 750 500 375 250 50 35 25 20 12 8 48 m 32 m 24 m 16 m 12 m 8 m 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 Voltage, Auxiliary Terminal:

Terminal Surge Protection Input Impedance V A 6kV 800V

>10M <200pF

>100M <200pF Burden Voltage 10kA 600V

<20V/mA DC Range AC Range Resolution Noise Floor 1000 mV 680 mV 510 mV 400 mV 290 mV 220 mV 150 mV 700 mV 475 mV 350 mV 275 mV 200 mV 150 mV 100 mV 300 nV 150 nV 100 nV 75 nV 50 nV 40 nV 25 nV 10 V 5 V 4 V 3 V 2 V 2 V 1 V Accuracy

(%+count) 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 0.5 + 20 Range Resolution Noise Floor Accuracy Diode Voltage Drop 2.2 V 1.2 V 825 mV 625 mV 400 mV 300 mV 200 mV 300 nV 150 nV 100 nV 75 nV 50 nV 40 nV 25 nV 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 1.0 + 50 10 V 5 V 3.5 V 2.5 V 1.75 V 1.25 V 800 nV RADIO NOTICES FCC Notice (for U.S. Customers):

This device complies with part 15 of the FCC Rules:

Operation is subject to the following conditions:

This device many not cause harmful interference, and 1. 2. This device must accept any interference received, Including interference that may cause undesired operation Changes and Modifications not expressly approved by Curien LLC can void your authority to operate this equipment under Federal Communications Commissions rules This device complies with Industry Canada license-exempt RSS standard(s) Operation is subject to the following two conditions:

1. 2. this device may not cause interference, and this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:

1. 2. l'appareil ne doit pas produire de brouillage, et l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. NOTES

ns abe curien NEURON N2B0101 sce Z\WARNING[E]

TO AVOID ELECTRICAL SHOCK REMOVE TEST LEADS BEFORE OPENING CASE OR SERVICING Rea aaa UU ag ea pays 3AG 12A 10kA MIN INTERRUPT C Me ELT N= IC :26189-N2B0101 on ut tt oe pee, oF. N il)

Letter Of Agency Date: JUNE 29, 2020 RE: FCC ID: 2AWKW-N2B0101 To Whom It May Concern:

Please be advised that Joshua Carton of Curien LLC. authorizes Larry Stillings of Compliance Worldwide, Inc. to act on our behalf, until otherwise notified, for applications submitted for the purpose of obtaining an FCC Grant of Equipment Authorization. We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse ACT of 1988, U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002(b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you for your attention to this matter. Signatory

Mooshim Engineering LLC. 1777 Yosemite Ave, Ste 235 San Francisco CA 94124

(703) 819-0409 james@moosh.im June 10 2020 Dear Mr. Carton, Joshua Carton or Authorized Representative of Curien LLC 1142 Eubank Ave Wilmington, CA 90744 You have my permission to file with the FCC for a change in FCC ID for the N2 Neuron multimeter, which is functionally identical with regard to the radio and electronics performance as the Mooshimeter multimeter, part number DMM-BLE-2x01A, further identified by:

FCC ID: 2ACIW-DMMBLE1 granted 2014 - 09 - 12 IC: 12061A-DMMBLE1 granted 2014 - 06 - 06 You also have permission to use our test reports generated certifying the Mooshimeter in your certification process for the N2 Neuron. Best regards, James Whong Principal, Mooshim Engineering LLC

We are submitting for a new FCC ID for Curiens N2 Neuron Multimeter model number N2B0101 which is a private label of the Mooshimeters multimeter, part number DMM-

BLE-2x01A. To Whom it may concern:

Our new proposed FCC ID is:

FCC ID: 2AWKW-N2B0101 The original FCC ID is:

FCC ID: 2ACIW-DMMBLE1 granted 2014 - 09 - 12 The equipment differs only in outward color and marketing markings such as label and colors, elsewise the equipment is the same. Because the equipment is equivalent in design and manufacture to the original, the test results apply to the new product. A new user guide has been provided with the same regulatory statements of the original, only changing marketing label and content, elsewise the original guides purpose and content is being retained. Best Regards, Joshua Carton Managing Director Curien LLC.