DATRON 4700 PDF
Model Specifications. Manufacturer(s). Datron. Instrument Model: Description: Autocal Multifunction Calibrator. Instrument Type(s). Calibrator. Application. Find great deals for DATRON AUTOCAL Multifunction Calibrator as Is. Shop with confidence on eBay!. Datron | Sale | Rental | Lease – Calibrator. Datron Calibrator. Contact us for pricing and availability. Description; Options.
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During calibration the actual value is measured and stored in the calibration memory to be displayed whenever that range dstron selected. Ail selected output values will be compensated in the same ratio on. If a key is held pressed, the display will increment or decrement continuously until the key is released.
Voltage and cun-ent ranges are selectable as follows, the actual output value being selected by use of the OUTPUT display 1 1 f keys: If calibrating at a non-nomina! Reset Check The program ensures that user tests the 470 action. Sum the Verification setup unceitainties and record in the Us column, as voltage deviations Refer to Appendix 5.
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It may be used to input an external reset to restore the to its power-up state of ,DCV, 1 V Range etc. This calibration affects all Voltage and Current Ranges! Pressing the wrong ON key can result in approximately twice the DC voltage source output voltage being connected across the null detector. For the alternative method at Appendix 3, a set of calibrated AC Current Shunts of suitable value and accuracy.
Ail Resistance ranges — Remote Sense gives 4-wire connection. ULconcerning safety requiren. For 4-wire connections in Remote Sense 470. Ensure that the Millivolts LF Calibration has been completed. Protection is xatron by a direct connection via the power cable from ground to exposed metal parts and internal ground screens.
A modem, automatic spectrum analyzer is more satisfactory. Record, its output voltage on Report Sheet RS2. This can increase internal operating temperatures affecting reliability. Other Useful Features Aithougil not essential to normal verification, the following additional facilities can sometimes simplify procedures: The method is detailed in Appendix 1 to this section.
DATRON 4700 MULTI-FUNCTION METER CALIBRATOR
47700 ratio ; Total Lead Resistance Load Resistance gives the approximate error for 2-wire connection at low frequencies. For higli impedance loads, 2-wi. The tbliowmg Legends will be fitted into the string after fee exponent, if programmed by codes L0 or L2: In shallow cabinets it may be necessary to trim the tongue.
When changing to H function, the is automatically forced into Remote Sense for 4-wire operation.
Keep leads as short as possible, not longer than 1 meter. When running leads togetiier in screened pahs, avoid large voltages between leads in the same screen, especially if using PVC insulation. The system is directed by a conlrollmg device able to: To measure tiie value of each single frequency harmonic, as would be required to verify the 470 specificationany wideband noise must be filtered out.
Use short leads, ensure that the Calibration Source dwtron is set to zero and that the intcr-cormecting circuit has thermally stabilized.
As datfon aid to the controller and printer, the DMM can send another message with the last byte to be transferred EOI-end or identic, using another bus management line. However, available thermal transfer standards are not suitable for direct verification of the millivolt ranges, because their transfer elements are insufficiently sensitive.
Full text of “Datron: DATRON User”
Use Calculation A if the was last calibrated, by Datron. The procedures which follow therefore concentrate on the operation of the during calibration, accepting that the required thennai transfer xatron be set up to a DC source of suitable accuracy. Twist or run leads togetlieikeep length less than I meter. The key LED indicates the true connection: Where possible, the specification and Datron calibration uncertainties are given in a form suitable for calculation see Report Sheet RS2Where dagron IS not possible titey can be assembled from the specifications in Section 6, and in some cases can be more easily obtained using Spec Mode Report Sheet RS3 has columns for this purpose.
A20 Processor fi The will not respond to commands while legend B is present on me except to override during safety delay. The memorizes the difference between the two display values, and exits from SET mode. A DVM of suitable accuracy and frequency response.
Sum the Verification setup uncertainties and record in tlie Us column of RS2 T able 2 b as voltage deviations. Remote Sense The specified output voltage may be sensed at the load, using 4-wire connections.
When the uncertainty is not defined, the message Error I is displayed and the buzzer sounds. AC Voltage — an intern, al short circuit is connected across the output tenninals. Specifications — what accuracy you can expect to get from your instrument. Code for Informaflon Interchange. However, some users may wish to check this feature from time to time, so one or two points need to be datrno.
Processor A series microprocessor controls the internal performance of the instrument, employing 26K bytes of program memory. The intercept c is established first in Offset mode, then the slope m is adjusted, in Error mode.
Use untinned single-strand copper wire of higli purity. Absolute Limits of Tolerance In this case, the U commands cause the to calculate the high or low limit of uncertainty of its eatron value against the nominated calibration interval. How to restore your to its original specification after it has suffered the ravages of time and temperature.