milliAmp calibrator
Contents
1. signal JOF RA 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 CP 2320 US Model mAcal milliAmp calibrator PRODUCT DESCRIPTION The mAcal Milliamp Calibrator is an economical and easy to use calibration 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 Features The JOFRA mAcal keypad is easy to use and provides positive tactile feedback to the user Each key is labeled for easy operation A large2. high contrast 5 digit LCD display 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 Plus the unit is equipped with a user adjustable automatic shut off feature that pre vents 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 Loop Calibrator 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 Loop Calibrator also reduces the time and com plexity often associated with loop calibration The instrument features special fixed steps for performing linear and flow transmitter or valve positioner calibrations The instrument has seven different built in cur rent 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 process loop and take readings from the control n AMETEK CALIBRATION INSTRUMENTS JOF Fi Model mAcal Specification Sheet aes milliAmp calibrator SS_CP 2390 US PWR Switch between external and
3. internal loop power supply EXT the 24 VDC of the current loop is generated by an external 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 Connection Connection Connection of Connection of test test lead lead Display 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 STEP A vV Up arrow i 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 Model mAcal milliAmp calibr
4. sg AMETEK Inc Beijing Rep Office China Tel 86 10 8526 2111 jofra ametek com cn AMETEK GmbH Germany Tel 49 2159 9136 510 e info mct de ametek de AMETEK Calibration Instruments UK Tel 44 0 1489 486 404 e jofra ametek co uk
5. 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 EN50081 1 EN50081 2 soins E E E E EN50082 1 EN50082 2 91 157 EEC The JOFRA mAcal is type approved by Det Norske Veritas Find the certificate at our web page www jofra com Approval Certificate nO dxccscsnimesuutesinncnteesnlitnivnnseitiues A 10549 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 possible Calibrating the instrument measure mA Connect the mAcal to an external reference instrument and a current source as shown in Fig 2 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
6. 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 ORDERING INFORMATION 75 MACAL mdAcal Calibrator with standard accesories STANDARD DELIVERY e mdAcal Calibrator e mAcal e Soft carrying case e 2 test leads with crocodile clip e 4 batteries type LR6 AA e User manual ACCESSORIES 103964 Mains adapter for mAcal US Japan 103950 Mains adapter for mAcal Europe 103957 Mains adapter for mAcal UK 124716 4x 1 5 Volt rechargeable batteries 124718 Charger for rechargeable batteries 115 230 VAC AMETEK Calibration Instruments is one of the world s leading manufacturers and developers of calibration instruments for temperature pressure and process signals as well as for temperature sensors both from a commercial and a technological point of view JOFRA Temperature Instruments Portable precision thermometers Dry block and liquid bath calibrators 4 series with more than 25 models and temperature ranges from 90 to 1205 C 130 to 2200 F All featuring speed portability accuracy and advanced documenting functions with JOFRACAL calibration software JOFRA Pressure Instruments Convenient electronic systems ranging from 1 to 1000 bar 25 inHg to 14 500 psi multiple choices of pressure ranges pumps and accuracies fully temperature compensa
7. ator JOFRA Specification Sheet SS CP 2320 US FUNCTIONAL SPECIFICATIONS Current source PIANOS einan e i suas aaustencteeoutecsse Oto 24 mA FS SOME OM oroesi eeann a NEEESE NEE 0 01 mA PC CURACY K2 eeraa EA 0 05 of F S Maximum OAC saaran naia 900 ohm Temperature coefficient 0 005 per C 10 to 40 C PAAS E EE 0 003 per F 14 to 104 F Current measurement POS EIEE S A A O to 24 mA RESONON eisiaa e 0 001 mA Accuracy K 2 sesaria 0 05 of F S INPUT MTDC GANG E senteria e 10 ohm Temperature coefficient 0 003 per C 10 to 40 C PSA A E E 0 002 per F 14 to 104 F Voltage measurement POS EE E A T 0 to 45 VDC PRS SOMONE scia caceeussnsun noms eeasonaene 0 1 VDC POC UNAGY csrsciecrusec arate eace saueneacaeseuincsedseutcaweteeaeatadenidasn 0 5 VDC Input impedance icc cesets see shrtedisnre ciepneducceendviansiadatins 10M ohm Adjusting the instrument instrument must be 8 pA at a maximum Fig 3 PHYSICAL SPECIFICATIONS Power supply 120 VDC Mains Adapters 1038964 6 VDC 240 mA US EE ETE E T Japan 1 3mm DC female connector Batteries ccceeeeeseeeees 4 Type LR6 AA 1 5 VDC Alkaline Battery life 200 hours with external loop power EE N 20 hours with 12 mA output internal loop power Instrument weight incl batteries leads and case KAE E AP T E E 0 8 Ibs 355g Instrument dimensions incl batteries leads and case Size L x W
8. ted for problem free and accurate field use JOFRA Signal Instruments Process signal measurement and simulation for easy control loop calibration and measurement tasks from handheld field instruments to laboratory reference level bench top instruments JOFRA JF Marine Instruments A complete range of calibration equipment for temperature pressure and signal approved for marine use FP Temperature Sensors A complete range of temperature sensors for industrial and marine use M amp G Pressure Testers Pneumatic floating ball or hydraulic piston dead weight testers with accuracies to 0 015 of reading M amp G Pumps Pressure generators from small pneumatic bicycle style pumps to hydraulic pumps generating up to 1 000 bar 15 000 psi because Calibration Is a matter of confidence AMETEK CALIBRATION INSTRUMENTS Headquarters AMETEK Denmark A S Gydevang 32 34 e 3450 Aller d Denmark Tel 45 4816 8000 ametek ametek dk Sales amp Service Europe Asia Africa Middle East and South America Information in this document is subject to change without notice 2008 by AMETEK Inc www ametek com All rights reserved Pub code SS CP 2320 US Issue 0901 www ametekcalibration com www jofra com Sales amp Service Offices AMETEK Mansfield amp Green North America Tel 1 800 527 9999 e cal info ametek com AMETEK Singapore Pte Ltd Singapore Tel 65 6 484 2388 aspl ametek com
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