Measurement Solutions for Refrigeration Technology

39Sound level measurement – To DIN/IEC 60651, Class 2testo 815The ideal instrument for daily use.Whether it is for air conditioningor heating, disco noise, machinenoise or noise in combustionsystems, testo 815 is the idealpartner.Common features:• Frequency weighting accordingto characteristic A and C• Maximum and minimum valuememory• Built-in tripod knuckle screw(1/4 inch)• Switchable time weighting Fast/ Slowtesto 815Sound level meter, accuracy class 2,incl. microphone, wind protection capand batteryPart no. 0563 8155Rpm measurementtesto 816Compared to testo 815, the largermodel has additional featureswhich make it ideal for assessors,workplace measurements and formeasuring industrial andenvironmental noise.Additional benefits of testo816:• Automatic range switchover• Backlit display• BarGraph display• AC/DC output for connection toamplifiers, recorders ordataloggerstesto 816Sound level meter, accuracy class 2,incl. microphone, wind protection cap,battery, stereo jack 3.5 mm, in apractical measurement casePart no. 0563 8165Frequency weighting ofcurrent readingTime weightingSection measurementrangeAccessories Ordering datatesto 815, Monitoringmeasurements in ventilationtesto 816, Checkingnoise controlPart no.Calibrator, for regular calibration of testo 815, testo 816 0554 0452Mains unit 230 V/ 8 V/ 1 A, for instrument (European plug), formains operation and battery recharging 0554 1084ISO calibration cert./sound pressure, calibration points 94 dB;104 dB; 114 dB at different frequencies 0520 0111ISO calibration certificate sound pressure calibrators 0520 0411Technical data testo 815Meas. range+32 to +130 dBAccuracy ±1 digitClass 2, ±1.0 dBResolutiontesto 8160.1 dB 0.1 dB70 h 50 h+30 to +130 dBClass 2, ±1.0 dBBattery lifeWeight195 g315 gDimensions 255 x 55 x 43 mm 309 x 68 x 50 mmBattery type9V block batteryOper. temp.0 to +40 °C Storage temp. -10 to +60 °COtherfeaturesSection meas. ranges: 30 to 80 dB; 50 to 100 dB; 80 to 130 dBTime weighting: FAST 125 ms setting / SLOW 1 s settingPressure dependency: -0.0016 dB/hPatesto 465Non-contacttesto 470Non-contact and mechanicalUsing testo 465, rpm can beeasily measured without contact.Simply attach a reflector to theobject to be measured and thenpoint the visible red light beam atthe reflector and measure.• Stores mean/min/max value,last reading• Robust design on account ofSoftCase (protection sleeve)The ideal combination of opticaland mechanical rpmmeasurement. An opticalmeasurement becomes amechanical measurement bysimply attaching an adapter for aprobe tip or surface speed disc.• Measures rpm, velocities andlengths• Battery display "Low Batt"• Robust design on account ofSoftCase (protection sleeve)testo 470, mechanicalrpm measurementtesto 465testo 470Rpm measuring instrument set: Meas. Rpm meas.instr. incl. SoftCase (protection sleeve) SoftCase (protectionin transport case (plastic), reflectors, case, adapter,batteries and calibration protocol disc, reflectors,Part no. 0563 0465Part no. 0563Accessories Ordering dataReflectors, self-adhesive (1 pack = 5 off, each 150 mm long)ISO calibration certificate/rpm, optical and mechanical rpmmeasuring instruments; cal. points 500; 1000; 3000 rpmISO calibration certificate/rpm, optical rpm measuringinstruments; calibration points 10; 100; 1000; 10000; 99500 rpminstr. set: Meas.sleeve)probe tip, surfacebatts and0470Part no.0554 04930520 0012Technical dataProbe typeMeas. rangeAccuracy±1 digitResolutionOper. temp.Storage temp.testo 470instr. incl.in transportspeedcal. protocoltesto 465 and testo 470, non-contact (optical)rpm measurement on rotating partsOptically with mod. light beam Mechanical (testo 470 )+1 to +99999 rpm +1 to +19.999 rpm±0.02% of mv0.01 rpm (+1 to +99.99 rpm)0.1 rpm (+100 to +999.9 rpm)1 rpm (+1000 to +99999 rpm)0 to +50 °C Dimensions-20 to +70 °C Weight175 x 60 x 28 mm190 gSpeed: 0.10 to 33.3 m/s; 0.1 to 109 ft/s; 0.10 to 1.999 m/min; 0.40 to 6550 ft/min;4.00 to 78,700 in/minLengths: 0 to 99.999 m; 0 to 99.999 ft; 0 to 99.999 inAccuracy: (±1 digit/0.02 m/1.00 inch depending on resolution)