Hameg HM1008-2 Manual

Hameg HM1008-2 Manual Manual pdf 7 page image

7Subject to change without noticeType of fuse:Size 5 x 20 mm; 250V~, C;IEC 127, Bl. III; DIN 41 662(or DIN 41 571, Bl. 3).Cut off: slow blow (T) 0,8A.I m p o r t a n t h i n t sIn case safe operation may not be guaranteed do not use theinstrument any more and lock it away in a secure place.Safe operation may be endangered if any of the followingwas noticed:– in case of visible damage.– in case loose parts were noticed– if it does not function any more.– after prolonged storage under unfavourable conditions (e.g.like in the open or in moist atmosphere).– after any improper transport (e.g. insufficient packing notconforming to the minimum standards of post, rail or trans-port firm)Proper operationPlease note: This instrument is only destined for use by person-nel well instructed and familiar with the dangers of electricalmeasurements.For safety reasons the oscilloscope may onlybe operated from mains outlets with safety ground connector.It is prohibited to separate the safety ground connection. Theplug must be inserted prior to connecting any signals.CAT IThis oscilloscope is destined for measurements in circuits notconnected to the mains or only indirectly. Direct measurements,i.e. with a galvanic connection to circuits corresponding to thecategories II, III, or IV are prohibited!The measuring circuits are considered not connected to themains if a suitable isolation transformer fulfilling safety classII is used. Measurements on the mains are also possible ifsuitable probes like current probes are used which fulfil thesafety class II. The measurement category of such probes mustbe checked and observed.Measurement categoriesThe measurement categories were derived corresponding tothe distance from the power station and the transients to beexpected hence. Transients are short, very fast voltage or cur-rent excursions which may be periodic or not.Measurement CAT IV:Measurements close to the power station, e.g. on electricitymetersMeasurement CAT III:Measurements in the interior of buildings (power distributioninstallations, mains outlets, motors which are permanentlyinstalled).Measurement CAT II:Measurements in circuits directly connected to the mains(household appliances, power tools etc).Measurement CAT I:Electronic instruments and circuits which contain circuitbreakers resp. fuses.Environmental conditionsThe oscilloscope is destined for operation in industrial, business,manufacturing, and living sites.Operating ambient temperature: 0 to + 40 degrees C. Duringtransport or storage the temperature may be –20 to +55 degreesC. Please note that after exposure to such temperatures or incase of condensation proper time must be allowed until theinstrument has reached the permissible range of 0 to + 40 de-grees resp. until the condensation has evaporated before it maybe turned on! Ordinarily this will be the case after 2 hours. Theoscilloscope is destined for use in clean and dry environments.Do not operate in dusty or chemically aggressive atmosphereor if there is danger of explosion.The operating position may be any, however, sufficient ventila-tion must be ensured (convection cooling). Prolonged operationrequires the horizontal or inclined position.STOPDo not obstruct the ventilation holes!Specifications are valid after a 20 minute warm-up periodbetween 15 and 30 degr. C. Specifications without tolerancesare average values.Warranty and repairHAMEG instruments are subjected to a rigorous quality control.Prior to shipment each instrument will be burnt in for 10 hours.Intermittent operation will produce nearly all early failures.After burn in, a final functional and quality test is performed tocheck all operating modes and fulfilment of specifications. Thelatter is performed with test equipment traceable to nationalmeasurement standards.Statutory warranty regulations apply in the country where theHAMEG product was purchased. In case of complaints pleasecontact the dealer who supplied your HAMEG product.MaintenanceClean the outer shell using a dust brush in regular intervals.Dirt can be removed from housing, handle, all metal and plasticparts using a cloth moistened with water and 1 % detergent.Greasy dirt may be removed with benzene (petroleum ether) oralcohol, there after wipe the surfaces with a dry cloth. Plasticparts should be treated with an antistatic solution destinedfor such parts. No fluid may enter the instrument. Do not useother cleansing agents as they may adversely affect the plasticor lacquered surfaces.Line voltageThe instrument has a wide range power supply from 105 to 253V, 50 or 60 Hz ±10%. There is hence no line voltage selector.The line fuse is accessible on the rear panel and part of the lineinput connector. Prior to exchanging a fuse the line cord mustbe pulled out. Exchange is only allowed if the fuse holder isundamaged, it can be taken out using a screwdriver put into theslot. The fuse can be pushed out of its holder and exchanged.The holder with the new fuse can then be pushed back in placeagainst the spring. It is prohibited to ”repair“ blown fuses or tobridge the fuse. Any damages incurred by such measures willvoid the warranty.