Ametek mAcal milliAmp Calibrator Datasheet PDF (314
Contents
1. play indicates numeric values in mA V or sec The resolution is 0 001 mA in measurement mode The user can change the display to read in of Full Scale and flow readings are shown in of Flow The display also indicates error codes Visual warnings are displayed for loop mismatch reverse polarity and over range And is also equipped with a user adjustable automatic shut off feature that prevents accidental battery discharge when the unit is not in use A built in permanent fuse eliminates the need to replace the fuse in the case of overloads no need to return the unit to the factory to reset or replace the fuse The mAcal provides loop power in the range of 0 to 45 VDC and the instrument is designed to generate a stable 24 VDC supply for the loop The mAcal also reduces the time and complexity often associated with loop calibration The instrument features special fixed steps for perform ing linear and flow transmitter or valve positioner calibrations The instru ment has seven different built in current values and the user may choose between manual or automatic steps with 10 or 30 seconds between steps You can perform an entire test by placing the mAcal in the pro cess loop and take readings from the control room AMETEK TEST amp CALIBRATION INSTRUMENTS JOFRA calibration PWR Switch between external and internal loop power supply EXT Connection Connection e pened iho ae Connection of Connection of test test le2. signal JOFRA I calibration Sources and measures current Allows for calibration of transmitters in a two wire loop Stable source Internal 24 VDC supply for consistent loop power High resolution Read to 0 001 mA in the measurement mode of full scale reading Displays a percentage to provide for easy analysis of results Timesaving features Fast one key one function access to the features such as the step function or loop supply power Large display Includes large numbers for unit reading a percentage display and dedicated icons for calibrator status including a low battery indicator Traceable calibration For your confidence the unit is supplied with a calibration certificate that is fully traceable to a national standards lab such as NIST or NPL Complete marine program Part of a complete program of marine approved temperature pressure and signal calibrators including temperature sensors ISO 9001 Manufacturer Specification Sheet SS MACAL millAmp Calibrator mAcal The mAcal milliAmp Calibrator is an economical and easy to use calibra tion device for sourcing and measuring mA signals The instrument is designed specifically for 2 wire transmitter loops with 4 to 20 mA signals and it is delivered with traceable certification The keypad is easy to use and provides positive tactile feedback Each key is labeled for easy operation A large high contrast 5 digit LCD dis
3. EN50081 1 EN50081 2 E E E EN50082 1 EN50082 2 91 157 EEC The JOFRA mAcal is type approved by Det Norske Veritas Find the certificate at www jofra com Approval Certificate nO ccccccccecsseeeseseeeeaeeeeees A 10549 Adjusting the instrument Connect the mAcal to an external reference instrument as shown in Fig 1 The mAcal now carries out a self calibration and adapts its circuits to that measured Switch on the mAcal It is now adjusted and ready for use Note The mAcal can only be adjusted in mA Adjustment of the VDC function is not Calibrating the instrument measure mA Connect the mAcal to an external reference instrument and a current source as shown Calibration is carried out in the following points 0 mA 4 mA 8 mA 12 mA 16 mA 20 mA and 24 mA If the mAcal displays EEEEE when measuring the 24 mA you must turn down the current until the EEEEE disappears Calibration must subsequently be carried out at a lower value e g 23 995 mA The deviation between the read value of the mAcal and the read value of the reference instrument must be 8 pA at a maximum Calibrating the instrument Source mA Connect the mAcal to an external reference instrument as shown in Fig 3 Calibration is carried out in the following points 0 mA 4 mA 8 mA 12 mA 16 mA 20 mA and 24 mA The deviation between the adjusted value of the mAcal and the read value of the reference instrument must be 8 pA at a maximum ORDERIN
4. 900 ohm Temperature coefficient 0 005 per C 10 to 40 C A E A 0 003 per F 14 to 104 F Current measurement TEE LAT N A E A E E EE Oto 24 mA RESOIUUON siavetetecutaeetetsveccansbasaresevaresemucetorutrececcaut 0 001 mA PCCOUNACY K 2 asroisssiseins icir 0 05 of F S Input impedance cccceececeeeceeeecceeeceeeeeeeeeseneesaes 10 ohm Temperature coefficient 0 003 per C 10 to 40 C A EA 0 002 per F 14 to 104 F Voltage measurement PROG E A E E T O to 45 VDC RESOLU I stccnescnsicsausetsascescnrtsennesostceseme swede yetasivesseretes 0 1 VDC PRC CUA a NE 0 5 VDC Input impedance cccceeeeceeeceeeeeeeeeseeeeeeeeesaeees 10M ohm possible Fig 1 in Fig 2 JOFRAJI calibration PHYSICAL SPECIFICATIONS Power supply 120 VDC Mains Adapters 103964 6 VDC 240 mA US EEEE AI T Japan 1 3mm DC female connector Batteries a an 4 Type LR6 AA 1 5 VDC Alkaline Battery life c 200 hours with external loop power PE 20 hours with 12 mA output internal loop power Instrument weight incl batteries leads and case aE S a A E E A 0 8 Ibs 355g Instrument dimensions incl batteries leads and case Size L x W x H 6 85 x 2 6 x 1 0 in 174 x 66 x 26 mm Miscellaneous Operating ambient temperature 14 to 104 F 10 to 40 C Storage ambient temperature 4 to 122 F 20 to 50 C CE Conformity 89 336 EEC
5. G INFORMATION 75 MACAL mdAcal Calibrator with standard accesories STANDARD DELIVERY e mAcal Calibrator e mAcal e Soft carrying case a i 2 test leads with crocodile clip AMETEK Test amp Calibration Instruments e 4 batteries type LR6 AA A business unit of AMETEK Measurement amp Calibration Technologies Division offering the following industry e User manual leading brands for test and calibration instrumentation JOFRA Calibration Instruments Temperature Calibrators Portable dry block calibrators precision thermometers and liquid baths Temperature ranges from ACCESSORIES 90 C 130 F to 1205 C 2200 F Temperature sensors for industrial and marine use Pressure Calibrators 103964 Mains adapter for mAcal US Japan a clade ere eee ranging Haia sled to ar Tully temperature compensated tor propiem 103950 Mains adapter for mAcal Europe free and accurate field use 103957 Mains adapter for mAcal UK Signal Instruments 124716 4x 1 5 Volt rechargeable batteries Process signal measurement and simulation for on 124718 Charger for rechargeable batteries 115 230 VAC g e ee ee ae ena M amp G Pressure Testers amp Pumps Pneumatic floating ball or hydraulic piston dead weight testers with accuracies to 0 015 of reading Pressure generators delivering up to 1 000 bar Lloyd Instruments Materials testing machines and software from Lloyd Instruments guarantees expert materials testing solutions The compr
6. ad lead Display power supply and INT the 24 VDC of the current loop is gen erated by the mAcal itself Mains adapter Connection to mains adapter 6 VDC 230 mA Note The mains adapter does not charge rechargeable bat teries ON OFF Switching instrument on off Auto shut off to extend battery life user programmable mA setup Alternating between readout in mA and If the key is held down for more than 2 sec a change to SETUP takes place Under SETUP this key is used to select next parameter Auto AUTO ramp or AUTO STEP function is started or stopped Shows numerical value in mA V or sec and for readout of error codes etc FUNC This key allows for changing functions between SOURCE mA MEASURE mA and MEASURE Volt function Step The STEP function is acti vated or de activated Up arrow Functions to increase entered values or to scroll up Down arrow Functions to decrease entered values or to scroll down JOFRA mAcal in softcase The mAcal calibrator is available separately and are supplied in a handy softcase that allows for complete operation of the unit while in the case The convenient internal arrangement offers you the space to store test leads FUNCTIONAL SPECIFICATIONS Current source BELS LEE NE E A N EEE E Oto 24 mA RESOUN renanira ei NAER 0 01 mA ACCURACY K 2 iacacctcntnctaacnccesceaverarcesnteeien 0 05 of F S Maximum load eisernen
7. ehensive program also covers Texture Analysers to perform rapid general food testing and detailed texture analysis on a diverse range of foods and cosmetics Davenport Polymer Test Equipment Allows measurement and characterization of moisture sensitive PET polymers and polymer density Chatillon Force Measurement The hand held force gauges and motorized testers have earned their reputation for quality reliability and accuracy and they represent the de facto standard for force measurement Newage Testing Instruments Hardness testers durometers optical systems and software for data acquisition and analysis AMETEK www jofra com TEST amp CALIBRATION INSTRUMENTS AMETEK Mansfield amp Green North America T 1 800 527 9999 cal info ametek com AMETEK Singapore Pte Ltd Singapore T 65 6 484 2388 aspl ametek com sg AMETEK Denmark A S AMETEK Inc Beijing Rep Office China Gydevang 32 34 3450 Aller d Denmark T 86 10 8526 2111 jofra ametek com cn T 45 4816 8000 ametek ametek dk AMETEK Instruments India Pvt Ltd India T 91 22 2836 4750 ametek ametek dk AMETEK GmbH Germany T 49 2159 9136 510 info mct de ametek de AMETEK Calibration Instruments UK Information in this document is subject to change without notice 2012 by AMETEK Inc www ametek com All rights reserved T 44 0 1243 833 302 jofra ametek co uk
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