MS 300 SERIES METER
Contents
1. Before any measurement ensure correct positioning of the leads on the multimeter and of the switch When the value range of a measurement is not known place the switch at the highest caliber and then gradually reduce it until the appropriate caliber is achieved the reading should preferably be in the upper 2 3 of the range Never measure resistances on a live circuit During current intensity measurements without a clip on ammeter stop circuit power supply before connecting or disconnecting the multimeter or changing caliber The leads must be disconnected to open the lower half of the meter case Never connect to the circuit to be measured if the casing 1s not properly closed IERI Cli POL Odi PED PeR TOTENS SOMO Ol Ol S Las see pee sas N Senne da ane ber abe Mera ae eee FUR Hee We ee MU Ge ae SIS Pree ELC al Ol Gann dem amie cou pate me ope bee nba dee qus aet dip Abe Doe ten ge VA vaa Ge fd dba We ae ERR hee Agee DR Ae enera Charro 1S CLOS wise nae woe edes uni rand dnb uas dae wee dude tw See Re aer cus aimas ometi genet oes E e 1424166 as es a es Se Re ne ts T The MS306 multimeter is for everyday use by electricity professionals It offers the following functions CONTENTS 1 DESCRIPTION Voltmeter voltage measurement Vpc and Vac Ammeter current intensity measurement Apc and Aac Ohmmeter resistance measurement Q with manual calibration Audible continuity test2. 1 1 Safety terminals 4mm COM common terminal receiving the black lead 1 VO for voltage and resistance 2 A for Apc and Aac calibers mV for using a clamp 4 10A for 10A calibers DC AC 3 1 2 5 range dial 5 2 black with anti parallaxe mirror for the Apc Vpc and Vac 1 green with anti parallaxe mirror for the Q 2 red for the Arc measurements 1 3 Zero calibration button on the ohmmeter 6 Correction of battery wears status 1 4 Function selection switch 7 MS306 MULTIMETER ooo wo N N 2 REFERENCE CONDITIONS Temperature 23 C 2 C Humidity 45 RH 5 Position horizontal 2 Ensure that the pointer 1s at zero before starting any measurements Zero adjustment open the device Mechanical zero adjustment is carried out by turning the screw on the back of the null meter Ensure that the switch is correctly positioned When an estimated measurement is unknown place the switch at the highest caliber and then gradually reduce it until the appropriate caliber is achieved the reading should preferably be in the upper 2 3 of the range 3 SPECIFICATIONS 3 1 DC VOLTAGE Connect the leads to the multimeter be careful of switch position see below and connect to the circuit to be controlled When an estimated measurement is unknown place the switch at the highest caliber and then gradually reduce it until the appropriate caliber is achieved To obtain voltage in V multiply the appropriate range val
3. MS 300 SERIES METER USER S MANUAL Safety Meaning of symbol zx CAUTION Please consult the operating instructions before using the device In these operating instructions failure to follow or carry out instructions preceded by this symbol may result in personal injury or damage to the device and the installations Meaning of symbol This appliance is protected by double insulation or reinforced insulation It does not have to be connected to an earth protection terminal for electrical safety Thank you for purchasing this MS306 multimeter To obtain the best service from your unit Read these operating instructions carefully Comply with the precautions for use 2 PRECAUTIONS FOR USE Never use on a voltage network over 600V with respect to the earth connection This voltage surge category III multimeter complies with stringent reliability and availability reguirements corresponding to fixed industrial and domestic installations see IEC 664 1 Do not use on alternative and continuous voltages gt 600V Indoor use in environments with a maximum pollution level of 2 EN 50419 2006 temperature of 10 C to 50 C and relative humidity below 90 Respect the value and type of the fuses to avoid damaging the instrument and canceling the warranty LA fuse 600V 10A fuse 600V Use accessories corresponding to safety standards EN 61010 1 2001 with 600V minimum voltage and surge category III
4. limatic conditions Temperature use 10 C to 50 C storage 30 C to 70 C Relative humidity use lt 80 HR Altitude use lt 2000m 4 4 Compliance with international standards Electrical safety EN 61010 1 2001 CEI 1010 1 EN61010 NF C 42020 VDE 0411 Double insulation Pollution level 2 Installation category III according to CEI 664 Allocated voltage 600V 4 5 Electromagnetic compatibility Emission EN 61326 1 2006 Immunity EN 61326 1 2006 Maximum influence in the presence of conducted radio frequencies 3 times the accuracy class if the length of the measured circuit is gt 3m 5 SUPPLY To order MS306 Delivery multimeter user s manual 2 test probes 6 MAINTENANCE Only use the specified spare parts for maintenance The manufacturer shall not be held liable for any incident occurring following repairs carried out by a party other than its after sales service or approved repairers 6 1 Battery and fuse change Opening the multimeter Open the device by removing the black over 6 1 1 Changing the battery Open the device Change the battery if the buzzer does not function when the VO and COM inputs are in short circuit on the Ox1 caliber Ensure that the battery is the right way up 6 1 2 Changing the fuses Open the device Use the same type of fuses to ensure the safety of users and of the device A and COM 1A fuse 10A and COM 10A fuse 6 2 Storage If the
5. multimeter is not used for a period of over 60 days remove the battery and store it separately For a shorter period avoid leaving the multimeter in ohmmeter position There is a risk of premature battery wear if the tips come into contact with it 6 3 Cleaning The multimeter must be disconnected from all electricity sources To clean the casing use a cloth dampened with soapy water Wipe over with a damp cloth Dry quickly with a dry cloth or forced air
6. ue by the reading coefficient indicated in the table voc wv 2sv nov asv sov 2s0v sev wmv umso 1e 2 wo 2 25 25 35 we medngewthien 1 x01 xi a x9 0 x9 x10 3 2 AC VOLTAGE HA a i Bandwidth 45 1kHz 45 150Hz Admissible overload 320V 470V 600V 600V 600V 1200V The presence of a DC component falsifies the measurement 3 3 DC CURRENT Connect the leads to the multimeter and connect in series in the circuit with the red lead in terminal A up to 1000mA the red lead in the 10A terminal for 10A DC and AC caliber Cut power supply before switching To obtain intensity in UA mA or A multiply the value on the appropriate scale by the reading coefficient indicated in the table 3 Scale Voltage drop at ADC M Reading coefficient Accuracy Protection indication inputs 1A 500V N Do not use input Aac on unprotected intensity transformers 10A 500V 3 4 AC CURRENT Som 3 5 Q RESISTANCE MEASUREMENT Zero adjustment on the ohmmeter is carried out using the calibration button front by short circuiting the inputs 3 6 AUDIBLE CONTINUITY TEST SEMI CONDUCTOR TEST NB In Ox1 buzzer threshold 50Q control of diode on or blocked anode in COM for on Do not carry out live measurements 4 GENERAL CHARACTERISTICS 4 1 Dimensions and weight Dimensions 165x105x50mm Weight 670g 4 2 Power supply 1 5Vx3 battery AA 4 3 Maximum c
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