Vitrek Xitron 2000 Series User Manual
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Vitrek Xitron 2000 Series User Manual

Dc / temperature source instruments
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2000 Family
DC / Temperature Source
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Summary of Contents for Vitrek Xitron 2000 Series

  • Page 1 USER GUIDE 2000 Family DC / Temperature Source Instruments...

  • Page 3: Warranty

    This Vitrek instrument is warranted against defects in material and workmanship for a period of two years after the date of purchase. Vitrek agrees to repair or replace any assembly or component (except batteries) found to be defective, under normal use, during the warranty period.
  • Page 4 All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form with prior written consent from Vitrek. This product’s user guide is copyrighted and contains proprietary information, which is subject to change without notice.

  • Page 5: Table Of Contents

    Contents Contents Warranty _______________________________________________ 3 Introduction _____________________________________________ 9 Product Description _________________________________________ 9 Features _________________________________________________ 10 Front Panel Controls and Connections _______________________ 11 Display __________________________________________________ 11 “POWER” Switch _________________________________________ 11 Battery Indicators __________________________________________ 12 Red “BATT CHG” Light _________________________________ 12 Green “OK” Light _______________________________________ 12 “OUTPUT”...
  • Page 6 2000I & 2000M Instrument’s User Guide, Revision B To Charge the Battery ____________________________________ 19 Charging Status _________________________________________ 20 Charging from the Charging Module ___________________________ 20 Charging Modules _______________________________________ 21 Charging from an External DC Voltage Supply __________________ 22 Continuous Power from External Supply _______________________ 22 Operating the 2000 Instrument _____________________________ 23 Front Panel Operation ______________________________________ 23 Initial Power Application _________________________________ 23...
  • Page 7 Contents Ensuring Stable Current Connections ________________________ 50 Process Control Industry Applications__________________________ 52 Calibrating in Process Control Environments __________________ 52 Simulating Thermocouple Systems __________________________ 55 Measuring Thermocouple Outputs __________________________ 56 Engineering Laboratory Environment Applications _____________ 57 Calibration and Maintenance ______________________________ 61 Internal Calibration ________________________________________ 61 External Calibration ________________________________________ 62 Equipment Required to Recalibrate _________________________ 62...
  • Page 8 2000I & 2000M Instrument’s User Guide, Revision B Appendix A– Output Specifications _________________________ 85 DC Voltage Output Specifications _____________________________ 85 DC Current Output Specifications _____________________________ 86 Voltage Measurement Specifications ___________________________ 87 Thermocouple Specifications _________________________________ 87 Appendix B– General Specifications ________________________ 93 Warm-Up Time _________________________________________ 94 Environmental __________________________________________ 94 Isolation _______________________________________________ 94...

  • Page 9: Introduction

    Introduction Introduction This chapter describes the 2000I, 2000M, 2000IN and 2000MN DC power source instruments and highlights their features and functionalities. The 2000 instru- ments were introduced in 1989 to support the fields of Process Control, Calibra- tion, and General Equipment Testing. Product Description The 2000I, 2000M, 2000IN and 2000MN products are portable, lightweight DC power source instruments.

  • Page 10: Features

    2000I & 2000M Instrument’s User Guide, Revision B Note: To ensure full use of this instrument, review this complete user guide at setup. Features  Fully bi-polar DC voltage and current output capability.  DC output of 22 volts at 10ppm accuracy and 22mA at 40ppm accuracy. ...

  • Page 11: Front Panel Controls And Connections

    Front Panel Controls and Connections Front Panel Controls and Connections This chapter discusses the basic use of the various controls, connectors and indi- cators on the front panel of the 2000I, 2000M, 2000IN and 2000MN DC power source instruments. Before using your instrument refer to the text on Charging the Battery.

  • Page 12: Battery Indicators

    2000I & 2000M Instrument’s User Guide, Revision B When the POWER switch is toggled up, in the ON position, the microprocessor and analog circuitry is powered and the instrument may be operated normally. The power source may be either from the battery or the charging module, as ap- plicable.

  • Page 13: Keypad

    Front Panel Controls and Connections Keypad These 20 keys are used for all manual entries into the instrument and to initiate any required actions. These keys are in the following groups: Numeric Keys These keys: are used to enter numeric data “0, 1, 2, 3, 4, 5, 6, 7, 8, 9,”...

  • Page 14: Units/Enter Keys

    2000I & 2000M Instrument’s User Guide, Revision B Note that prior to selecting the required units key, an entered multiplier may be changed by pressing the other multiplier or cleared by pressing the multiplier key a second time. Pressing a multiplier key while an actual output level or measured input level is being displayed (i.e., not during numeric entry) changes the display.

  • Page 15: Rear Panel Connections And Controls

    Important Note: When connecting a charger other than that provided by Vitrek, ensure the selected charger’s output voltage is: 12V at 1.5A and the center conductor is positive polarity and uses 2.5mm DC plug.

  • Page 16: Interface Connectors

    2000I & 2000M Instrument’s User Guide, Revision B Interface Connectors A connector slot is available at the top center in the back panel. A connector in this location is only present when either of the interface options IE-BAT or RS- BAT is fitted in the instrument.
  • Page 17 Rear Panel Connections and Controls Note that the battery life is considerably shortened when the IE-BAT Interface is enabled, thus it is highly recommended that this switch be maintained in the OFF (down) position whenever this interface is not being used. The IE-BAT Interface is only usable when this switch is in the ON position.
  • Page 18 2000I & 2000M Instrument’s User Guide, Revision B...

  • Page 19: Charging The Battery

    12 hours prior to its initial use. Use the charging unit provided Vitrek to charge the internal battery and to operate this instrument. Ensure that the included charging unit is compatible with your local power ratings and socket connection.

  • Page 20: Charging Status

    2000I & 2000M Instrument’s User Guide, Revision B Charging Status For battery charge status, refer to the front panel’s red BATT CHG light.  If the BATT CHG light extinguishes then the battery is fully charged.  If the BATT CHG light does not extinguish after several hours of charg- ing, turn the unit OFF and back ON (2000I and 2000M Only).

  • Page 21: Charging Modules

    Charging the Battery Warning: Prior to recharging the internal battery disconnect the 2000 instru- ment from any intrinsically-safe process control system. Charging while con- nected could adversely affect the safety of the process control system. Charging Modules One of these modules is included with the main unit (as specified at the time of order).

  • Page 22: Charging From An External Dc Voltage Supply

    2000 instrument. It is recommended that for the 2000I and 2000M products the unit is allowed to discharge completely to reduce the memo-ry effect of the Lead Acid battery. Vitrek recommends using an external DC supply for process control applications.

  • Page 23: Operating The 2000 Instrument

    Operating the 2000 Instrument Operating the 2000 Instrument This chapter discusses operating the 2000I, 2000M, 2000IN and 2000MN DC power source instruments. Throughout this chapter, the instrument is assumed to be a 2000M or 2000MN, which has full capabilities, described in this User Guide. If data is entered for which the option is not fitted, then a message displays for two seconds, and the entry is discarded.

  • Page 24: Connecting To The Output Terminals

    2000I & 2000M Instrument’s User Guide, Revision B When the POWER switch is placed in the OFF position, the terminals remain in the condition prevailing. Vitrek recommends selecting the “Stand-by” state prior to switching the POWER switch OFF, to afford the highest level of protection both to any circuitry connected to the instrument and to protect the instrument from inadvertent application of external signals.
  • Page 25 Operating the 2000 Instrument The displayed output level will be present when the instrument returns to “Oper- ate” status. Displaying Mode Options The menu-selectable modes display the opposite selection that is presently active in the instrument. For instance:  When “Select Operate” displays, the instrument is actually in “Standby”. ...

  • Page 26: Numeric Data Entry

    2000I & 2000M Instrument’s User Guide, Revision B The display then returns to displaying the selected output level and mode. The output terminals will either be open circuit–if “Standby” was selected, or at the requested output level–if “Operate” was selected. Caution: Prior to selecting the “Operate”...

  • Page 27: Direct Entry Of Required Output Level

    Operating the 2000 Instrument 2. Enter or reenter the entire numeric. If the CLR key is pressed at this time, then the numeric entry is aborted, the display returns to the previous display. 3. If an incorrect multiplier key is pressed, then simply press the correct multip- lier to overwrite the previously selected incorrect one.

  • Page 28: Changing Displayed Multiplier

    2000I & 2000M Instrument’s User Guide, Revision B Note that the output level is displayed using the same multiplier as used during the entry of the output level, thus entries of: 1V, 1000mV 1000000uV Each achieve an output level of: , but the display format will differ.

  • Page 29: Direct Entry Of Temperature Data

    Operating the 2000 Instrument 1. For example: if the display is: +.1000000 V 2. Press the key to reformat the display to: µ +100000. µV Direct Entry of Temperature Data The temperature of the hot junction of the thermocouple system to be simulated may be directly entered similarly to entering output voltage or current.

  • Page 30: Adjusting Output Level Or Simulated Temperature

    2000I & 2000M Instrument’s User Guide, Revision B 2. Press the +/- key to change the simulated temperature to: -100.00ºC R Note that unlike voltage or current output levels, the limits of available simulation temperatures are not identical in both polarities (in general). If the attempted tem- perature exceeds these limits, then the simulation temperature will be set to the limit at the requested polarity and a warning message will be displayed for ap- proximately two seconds.

  • Page 31: Increasing Or Decreasing Output Level

    Operating the 2000 Instrument  The amount by which the output has been deviated from the initial value is shown in the display. The level present when the “Adjust” mode was initiated is referred to as the no- minal output in this document. Examples of display formats during “Adjust” mode are shown below, with the increment digit underlined for clarity.

  • Page 32: Changing Adjustment Value

    2000I & 2000M Instrument’s User Guide, Revision B (down arrow) key. The output level or simulated temperature is incremented or reduced by the value of the selected (flashing) digit with full under/ and over- flow carry to the remaining digits (including carry through zero). Changing Adjustment Value As explained in the preceding paragraph, the output level (or simulated tempera- ture) is adjusted by the value of the flashing digit in the display.

  • Page 33: Range Locking

    Operating the 2000 Instrument  If neither “Standby” or “Operate” are the desired action at this point, con- tinue to press any of the arrow keys, or the MNU key until the “Set De- faults” action is displayed: < Set Defaults > ...

  • Page 34: Calculating Output Mode Of Operation

    2000I & 2000M Instrument’s User Guide, Revision B The “Range Lock” mode can be selected by stepping through the menu, similar to the operation of all earlier firmware versions. The three possible locked ranges, 20V, 2V, and 20mA, will appear in sequence. With the desired range on the dis- play, pressing any one of the Units/Enter keys will lock the instrument in the shown range.
  • Page 35 Operating the 2000 Instrument 1. Press the MNU key, the display will then prompt you for selection of either the “Standby” or “Operate” state as described previously in this chapter. 2. Since neither “Standby” nor “Operate” are desired, press an arrow key until the “Calculated Output”...
  • Page 36 2000I & 2000M Instrument’s User Guide, Revision B Note that the units for this data are automatically those previously selected for the Output A data. 9. The display then prompts you to enter User Data B and displays the presently stored data.

  • Page 37: Selecting Measurement Mode

    Operating the 2000 Instrument Selecting Measurement Mode Use this mode to measure voltage or temperature of another device. With the instrument in Measure mode, the output connectors automatically reconfigure as input terminals.  To select Measurement mode: 1. Press the MNU key to access “Operate” or “Standby” modes. 2.

  • Page 38: Rear Panel Operation

    2000I & 2000M Instrument’s User Guide, Revision B Rear Panel Operation All the connections available on the 2000 instruments rear panel are dependent on which options are fitted. Refer back to the Rear Panel Connections and Controls. Note: In the 2000M instrument, the thermocouple simulation output, or thermo- couple measurement input, should be taken from the connector mounted on the rear panel.
  • Page 39 Operating the 2000 Instrument Notes: Selecting and deselecting thermocouple simulation is simply achieved by: 1) Sending a temperature to the instrument, for example: Send the com- mand string to select the thermocouple simulation mode “+22.89C” with a simulated hot junction of +22.89ºC 2) Sending a voltage or current to the unit: for example: The command string “...
  • Page 40 2000I & 2000M Instrument’s User Guide, Revision B Neither “Standby” nor “Operate” are desired actions, therefore continue to press any of the arrow keys repeatedly until the “Thermocouple” set up ac- tion is displayed. < Thermocouple > Press any of the Units/Enter keys (V, A, ºC or ºF to select “Thermocouple”.

  • Page 41: Deselecting Thermocouple Simulation Mode

    Operating the 2000 Instrument For Thermocouple specifications refer to Appendix A—Power Output Capacity Specifications. Deselecting Thermocouple Simulation Mode To deselect the thermocouple simulation mode, select for a voltage or current output by pressing the Units/Entry keys (V or A). This method offers the ability to view the actual output level being used for the Thermocouple Simulation.
  • Page 42 2000I & 2000M Instrument’s User Guide, Revision B...

  • Page 43: Using The Memory Options

    Using the Memory Options Using the Memory Options The option called MEM is a 10-step memory, which allows you to program up to 10 output levels. These levels may be recalled speedily from either the front panel or by the rear panel mounted contact closure input. The ten memory steps are automatically stored in electronic nonvolatile mem- ory.
  • Page 44 2000I & 2000M Instrument’s User Guide, Revision B Editing Memory Steps 1. Press the MNU key twice. The display now shows the choice: < Edit Memory > 2. Press any of the ENTER keys to select this choice. The display now shows the prompt for the memory step number to be edited, for example: <...

  • Page 45: Rear Panel Memory

    Using the Memory Options pressing any of the Units/Enter keys. The display is then returned to the “Press Memory” prompt, as shown in step 2 above. Recalling Memory Steps Front panel memory steps may be sequentially recalled by following the proce- dure shown below.

  • Page 46: General Memory Considerations

    2000I & 2000M Instrument’s User Guide, Revision B with each instrument as standard and when MEM is ordered. (Vitrek part number C109001001000001). General Memory Considerations Memory of Instument Status The contents of a memory step only affect the selection of the “Operate” or “Standby”...
  • Page 47 Using the Memory Options...

  • Page 48: Applications

    2000I & 2000M Instrument’s User Guide, Revision B Applications This chapter describes specialized applications for using the 2000I, 2000M, 2000IN and 2000MN DC power source instruments and some ways to ensure the quality of the power source. The front panel terminals are used to: ...

  • Page 49: Ensuring Stable Voltage Connections

     Use very heavy gauge wire (16 AWG or larger), achieving the same effect by pulling the terminal to the same temperature as that of the wire. • Avoid using standard, commercial banana jacks. Vitrek en-sures the SP48 PL36 options are manufactured from highly pure copper and gold plating, ensuring they exhibit low thermal effects.

  • Page 50: Ensuring Stable Current Connections

    2000I & 2000M Instrument’s User Guide, Revision B  In most circumstances, the use of a tightly twisted pair of 28AWG wires is recommended, as this both reduces the effects of thermal E.M.F. voltages and achieves the close coupling required to reject interference. ...
  • Page 51 Applications  When dealing with low-level DC currents at high compliances, the effects of leakage currents become dominant. To limit leakage use the correct in- sulation throughout the cabling, and keep all connectors and front panels free of grease and dirt. Note that most low-level leakage currents are non-ohmic in nature and tend to be a constant current leakage for com- pliances above a few hundred millivolts.

  • Page 52: Process Control Industry Applications

    2000I & 2000M Instrument’s User Guide, Revision B  Use the Vitrek option SP48 shielded lead set.  To reduce current interference to acceptable levels:  Use twisted pairs of 26AWG (or smaller) wire with Teflon® insula- tion.  Use Polyethylene insulated shielded cables or short lengths of bare wire.
  • Page 53 Applications Using the Adjust Mode to Check Calibration For this application the “Adjust” mode of operation is used to measure the error of the equipment being tested. To test, simply set the calibrator to the required output level and then adjust the output level until the equipment being calibrated reads the correct value.
  • Page 54 2000I & 2000M Instrument’s User Guide, Revision B  Where is the tolerance of the input impedance (in ppm, 1% = 10000ppm).  Where Error is the increase in the limits of error (in ppm).  Thus, if the combined input impedance is 1M •...

  • Page 55: Simulating Thermocouple Systems

    Applications the required correction, in the units used by the transducer. Note that this correc- tion may be of either polarity. Note: The entered data are non-volatile, thus they may be entered at your base location, and then be used at a remote site without the need to reenter these data. Refer to Using the Memory Options.

  • Page 56: Measuring Thermocouple Outputs

    2000I & 2000M Instrument’s User Guide, Revision B The 2000M and 2000MN instruments simulate the thermocouple system by com- puting the hot and reference junction-E.M.F. voltages from the N.I.S.T. tables with linear interpolation. The output level is set to the difference between these two levels (V ).

  • Page 57: Engineering Laboratory Environment Applications

    Applications Engineering Laboratory Environment Applications The 2000 instruments have many uses in the Calibration and Engineering Labora- tory environments. Short-Term Transfer Standards The 2000 instruments can be used for medium accuracy transfers in the calibra- tion laboratory based on their: ...

  • Page 58: Table 1: Resistance Values For Transfer

    2000I & 2000M Instrument’s User Guide, Revision B , thus this The 2000 instruments have an output impedance greater than 10 affect is not of importance for unknown values below 1M. The following table gives the uncertainty of the transfer for various values of standard and unknown resistors.
  • Page 59 Applications Other Laboratory Applications: Variable voltage or current reference source: The 2000 instruments may be used as voltage and current reference sources in most instrumentation circuits, enabling the measurement of reference sen- sitivity and related effects. The low noise of battery power injects little noise into the circuitry.
  • Page 60 2000I & 2000M Instrument’s User Guide, Revision B...

  • Page 61: Calibration And Maintenance

    Calibration and Maintenance Calibration and Maintenance This chapter describes the procedures for internal calibration, external calibration, periodic maintenance and internal maintenance of the 2000I, 2000M, 2000IN and 2000MN DC power source instruments. Internal Calibration The internal calibration procedure ensures the 2000 instrument’s low-level DC voltage and current specifications are maintained.

  • Page 62: External Calibration

    The period at which these calibrations are performed is dependant on your accu- racy requirements, as shown in the accuracy tables in Appendix A-Power Output Capacities Vitrek recommends calibration intervals of 90 days, 6 months or 1 year to meet your in house accuracy needs. For example: in some applications, such as, general engineering laboratories and process control envi-ronments, the 1 year accuracies may be excessive.

  • Page 63: Table 3: Current Accuracy Margins

    The 2000 instruments require current measuring equipment with the accuracy requirements shown in Table 3, for a margin of 2:1 or better. Vitrek recommends using a high-accuracy digital DC ammeter, such as, the Hew- lett-Packard 3458A, or a DC voltage measuring device and laboratory standard resistors to achieve the current measurement accuracies.

  • Page 64: Initiating External Calibration

    2000I & 2000M Instrument’s User Guide, Revision B instrument. Any zero offsets in the measuring system can be compensated for by calibrating the zero current of the system using an open circuit measurement. Initiating External Calibration To initiate an external calibration you may be required to enter a password and/or the common (global) password.

  • Page 65: Performing External Calibration

    Calibration and Maintenance Note: To abort the external calibration selection at any time, press the CLR key. You will return the instrument to the output level and status that was present when the MNU key was initially pressed. 6. In no password is requested or the correct password is entered, press any of the arrow keys to continue.
  • Page 66 2000I & 2000M Instrument’s User Guide, Revision B Front Panel Key Adjustments The left and right arrow keys select the adjustment digit, the up and  down arrow keys adjust the selected digit. To abort any external calibration step press the CLR key. To abort the calibration entirely press the MNU key. To nor- mally end a calibration step—thus entering the adjusted calibration factor, press any of the Units/Enter keys.
  • Page 67 Calibration and Maintenance This output level may be measured directly by using:  A high precision DMM, or;  A nullmeter to monitor the deviation between this instruments' output level and that of a precision calibrated 10mV source, or;  The preferred method of using a nullmeter to monitor the deviation be- tween this instrument’s output level and the output of a high precision 100:1 attenuator whose input is obtained from a precision calibrated 1V source.
  • Page 68 2000I & 2000M Instrument’s User Guide, Revision B Nullmeter 2000 10V DC Source 10:1 Divider This output level may be measured directly by using:  A high precision DMM, or;  A nullmeter to monitor the deviation between this instrument’s output level and that of a precision calibrated 1V source, or;...
  • Page 69 Calibration and Maintenance This output level may be measured directly by using:  A high precision DMM, or;  The preferred method of using a nullmeter to monitor the deviation be- tween this instrument’s output level and that of a precision calibrated 10V source.
  • Page 70 2000I & 2000M Instrument’s User Guide, Revision B This output level may be measured directly by using:  A calibration standard 10K resistor and a high precision DMM, or;  A nullmeter to monitor the voltage drop across the standard resistor. 11.

  • Page 71: Periodic Maintenance

    Periodic Maintenance The 2000I(N) and 2000M(N) DC power source instruments require little periodic maintenance; however, Vitrek makes the following recommenda-tions: 1. Allow the internal battery to fully discharge, and then fully recharge at least once a year. This will ensure that the battery retains its storage capacity.

  • Page 72: Internal Maintenance

    2000I & 2000M Instrument’s User Guide, Revision B cessively dirty or damaged, contact Vitrek Customer Service (or one of its agents) for details on how to rectify this situation. 3. If the instrument is to be stored for extended periods of time, fully charge before storing.

  • Page 73: Replacing The Internal Battery

     The BATT CHG light does not extinguish after 15 hours of charging. Caution: The internal battery should only be replaced by an exact replacement. Obtain a replacement battery from Vitrek. Warnings: 1) Sealed lead-acid and Nickel Metal Hydride batteries are normally stored in a charged condition, take extreme care when handling the battery.
  • Page 74 2000I & 2000M Instrument’s User Guide, Revision B  To replace a battery: Open the instrument and remove the Microprocessor board as described in the instruction: To obtain access to the internal circuitry. Additionally re- move the Analog board and loosen the Power Supply board, as required, to assist in replacing the battery.

  • Page 75: Interface Operation

    Interface Operation Interface Operation This chapter discusses the methods used to interface the 2000I and 2000M DC power source instruments using the optional interface connectors RS-BAT and IE-BAT. In general, operation of these instruments via an interface involves the writing and reading of ASCII data to or from the instrument. In both interfaces, the same characters are used for each command.

  • Page 76: Selecting Rs232

    2000I & 2000M Instrument’s User Guide, Revision B Selecting RS232  To select the RS232 data format: Repeatedly press the MNU key until the “SET RS232” selection displays. Press any of the Units/Enter keys (V, A, ºC or ºF) to select this action. The unit will then display the presently selected baud rate for the RS232 inter- face.

  • Page 77: Remote/Local Operation

    Interface Operation Remote/Local Operation The IEEE488 interface defines separate “REMOTE” and “LOCAL” states. While in the LOCAL state, which is following the initial application of power, the in- strument will only respond to commands from the instrument’s front panel. Plac- ing the instrument in the “REMOTE”...

  • Page 78: Bus Commands

    2000I & 2000M Instrument’s User Guide, Revision B Bus Commands As previously mentioned, the IEEE488 interface can perform many tasks that the RS232 does not; those used by the 2000 instrument are as follows: 1. Remote/Local Selection. This has been previously described. 2.

  • Page 79: Reading Data Via An Interface

    Interface Operation Reading Data Via an Interface With either interface, you can read the data presently being displayed on the front panel of the 2000 instrument. With the 2000-RS-BAT interface this is achieved by transmitting the @ character to the 2000 instrument, with the IE-BAT inter- face this is achieved by simply reading the instrument.

  • Page 80: Table 4: Command Characters

    2000I & 2000M Instrument’s User Guide, Revision B Note: Command types other than those listed in Tables 4, 5 or 6 are always dis- carded and ignored. Table 4: Command Characters Front Panel Characters Front Command Charac- Received Panel Key ter Received .

  • Page 81: Firmware Version F.02

    Interface Operation Char/Seq Description of Action Selects the “Operate” state. Commands the interface to assert the SRQ (service request) line when a previously received command has been fully actioned. Ap- plies to UE2000 only. Commands a power-on reset sequence. Selects the “Standby” state. Sets the Thermocouple type to that described by the character im- mediately following, e.g., “TK”...

  • Page 82: Command String Usage

    Unlocks the 20mA Range Command String Usage Vitrek assumes the user is conversant with the send and receive data commands when using the actual computer interface and with the language used to control the 2000 instruments. Vitrek also assumes all com-mand strings (those shown enclosed in quotation marks) are followed by the car-riage return and linefeed characters.

  • Page 83: Adjusting Output Level

    Interface Operation Adjusting Output Level This may be achieved by shortcut commands or by simulating keyboard com- mands by using command characters. To select the “Adjust” mode of operation the instrument may send the character string D or the character string MMV. In the later character string, note that these characters simulate the key presses re- quired to perform the desired task: MNU, MNU and V, whereas the first com- mand string uses the shortcut form.

  • Page 84: External Calibration

    2000I & 2000M Instrument’s User Guide, Revision B be obtained (for both interfaces) by reading the 2000 instrument display data as described in the Maintenance and Calibration chapter. The accuracy specifications presented in the Appendix A tables assume the use of this function at least every 30 days, or for a temperature change of greater than 5ºC from that at the previous internal calibration.

  • Page 85: Appendix A- Output Specifications

    Appendix A—Output Specifications Appendix A– Output Specifications The DC voltage and current output capabilities of the 2000I,2000M, 2000IN and the 2000MN instruments are provided here. Additionally, specifications for the 2000M instrument’s of thermocouple measurement and simulation option are included here. DC Voltage Output Specifications The accuracy figures given in Table 7 are valid throughout the temperature range of 18º...

  • Page 86: Dc Current Output Specifications

    2000I & 2000M Instrument’s User Guide, Revision B Note: To maintain accuracy whenever outside this temperature range, apply the relevant temperature coefficient adder. Settling Time: ---------- Less than 2 seconds to within 10ppm of change + 0.25µV Drive Capability: ------ 15mA max. (50 output impedance below 220mV, 0.1 above 220mV) Overload: --------------- Output fully protected against short-circuits Long-Term Effects: --- Add 25ppm of output to 1 year specification for 3 year...

  • Page 87: Voltage Measurement Specifications

    Appendix A—Output Specifications Long-Term Effects: --- Add 60ppm of output to 1 year specification for three year accuracy Voltage Measurement Specifications Voltage measurement capabilities are present in the 2000M instrument. To meas- ure voltage, access the instrument’s “Measurement” mode. In Voltage Measurement mode (-0.15 to +0.15V): ...

  • Page 88: Table 9: Thermocouple Simulation And Measurement Specifications

    2000I & 2000M Instrument’s User Guide, Revision B Table 9. Thermocouple Simulation and Measurement Specifications Simulation Measurement Measurement Range Type Resolution Resolution 0.01ºC 0.15ºC +200 to +300ºC 0.01ºC 0.08ºC +300 to +1820ºC 0.01ºC 0.15ºC -270 to -260ºC 0.01ºC 0.05ºC -260 to -70ºC 0.01ºC 0.01ºC -70 to +1000ºC...

  • Page 89: Table 10: Cjc Stability-Simulation And Measurement 89

    Simulation using Passive CJC Simulation using Active CJC Range C Type Stability Relative Accuracy Absolute Accuracy Stability Relative Accuracy Absolute Accuracy 24 hr 90 day 1 yr. 90 day 1 yr. 24 hr 90 day 1 yr. 90 day 1 yr. 200 to 300 0.06 0.11...
  • Page 90 Measurement using Passive CJC Measurement using Active CJC Range C Type Stability Relative Accuracy Absolute Accuracy Stability Relative Accuracy Absolute Accuracy 24 hr 90 day 1 yr. 90 day 1 yr. 24 hr 90 day 1 yr. 90 day 1 yr. 200 to 300 0.11 0.19...
  • Page 92 2000I & 2000M Instrument’s User Guide, Revision B...

  • Page 93: Appendix B- General Specifications

    Sealed Lead Acid–Maintenance Free (2000I and 2000M) Nickel Metal Hydride, STD 3800mAH, Main-tenance Free, Additional batteries available, Contact Vitrek customer support for availability. Battery Charging Signal: Red LED illuminates on the front panel when internal battery during charging. Battery Voltage Level: Green LED illuminates on the front panel when the in- ternal battery has sufficient voltage to power the instru- ment (2000I and 2000M).

  • Page 94: Warm-Up Time

    2000I & 2000M Instrument’s User Guide, Revision B Note: The internal circuitry is automatically powered down when the battery voltage is low. Note that when this condition is achieved the only way to repower the instrument is to plug it into the external charger. This will reset the internal circuitry and reconnect the internal battery circuitry.
  • Page 95 Appendix B–General Specifications...
  • Page 96 2000I & 2000M Instrument’s User Guide, Revision B The common password for enabling External Calibration is: 10288 Place instrument in a known state, such as, current or voltage before entering the password. Note that this page can be removed, as required, to protect this data from unauthorized users.
  • Page 97 Password Page...

This manual is also suitable for:

Xitron 2000mnXitron 2000iXitron 2000mXitron 2000in

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