Fluke 1595A User Manual Page 1

1594A/1595A Super-ThermometerTechnical Guide159X____tgeng0000

1594A/1595A Super-Thermometer xTablesTable 1 Symbols ...

1594A/1595A Super-ThermometerInterface Commands90Parameter <source> may be any of the following:<source> Function1Selects the internal 1 W

91Remote OperationInterface CommandsA channel number in <channel list> may be 1 through 4 for the corresponding front channel input, 5 through 1

1594A/1595A Super-ThermometerInterface Commands92Parameter <value> is the number of measurements performed on a channel before advancing to the

93Remote OperationInterface CommandsPassword protection: Measure ProtectionSets the Average Enable for the sample average (see Section 5.7.3.2, TIMING

1594A/1595A Super-ThermometerInterface Commands94The returned value is a resistance ratio after processing by the digital lter. If no measurement is

95Remote OperationInterface Commands8.7.3.95 SYST:BEEP[:IMM]Example command: SYST:BEEPProduces an immediate beep from the speaker.8.7.3.96 SYST:BEEP

1594A/1595A Super-ThermometerInterface Commands96Sets the network port’s IP Address setting (see Section 8.2, Conguring the Network (LAN) Port, on pa

97Remote OperationInterface Commands8.7.3.109 SYST:COMM:SOCK:MAC?Example response: “00204A9AF1A2”Reads the network port’s Hardware MAC address (see S

1594A/1595A Super-ThermometerInterface Commands988.7.3.116 SYST:ERR?Example response: -100,“Command error”Reads the next error in the error queue. Wh

99Remote OperationInterface Commands8.7.3.120 SYST:PASS:CEN:STAT?Returns the password-access state. The response is 0 if access is disabled and 1 if

1Before You StartSafety Information1 Before You Start1.1 Symbols UsedTable 1 lists the symbols that may be used on the instrument or in this manual

1594A/1595A Super-ThermometerInterface Commands100Query form: SYST:TIME:DAYL?Password protection: Time/Date ProtectionAlternate parameter: DEFSets the

101Remote OperationInterface CommandsThe query form returns 1 if Ratio Self-Calibration is in progress, 0 otherwise.8.7.3.134 TEST:LIN:REP<n>?E

1594A/1595A Super-ThermometerInterface Commands1028.7.3.138 TEST:LIN:TOL<n>?Example response: 0.8Reads a Ratio Self-Calibration test tolerance

103CalibrationCURRENT TEST (F2)9 Calibration9.1 IntroductionThis section explains the step-by-step instructions for calibrating and verifying functi

1594A/1595A Super-ThermometerRATIO CALIBRATION (F3)104If using a calibrated resistor, connect the resistor to all four terminals on one of the front p

105CalibrationRATIO CALIBRATION (F3)sured resistance ratios. Ideally the product would be exactly 1.0. The reported error is half the difference of th

1594A/1595A Super-ThermometerRESISTANCE CALIBRATION (F4)106The reported data of the Ratio Self-Calibration may be written to a le on a USB memory dev

107CalibrationRESISTANCE CALIBRATION (F4)To properly calibrate a Super-Thermometer internal resistor, the expanded uncertainty (k = 2) of the standard

1594A/1595A Super-ThermometerCALIBRATION PARAMETERS (F5)108The results of the resistance calibration are written to the le as follows:RESISTANCE,<

109CalibrationCALIBRATION PARAMETERS (F5)9.6.2 Standby Current CheckIt may be necessary to check standby current to ensure proper operation. The stan

1594A/1595A Super-ThermometerAuthorized Service Centers2 DO NOT connect an AC mains supply that does not match the voltage setting on the back of the

111Maintenance 10 MaintenanceAvoid operating the instrument in excessively wet, oily, dusty, or dirty environments. If the outside of the instrument

113Troubleshooting 11 TroubleshootingThe purpose of this section is to help the user troubleshoot unexpected operation results. Use the following lis

1594A/1595A Super-Thermometer 114Problem SolutionPoor accuracy The current may be too low causing poor signal to noise ratio or too high causing exce

115 IndexSymbols1.4142 30, 4310/100 Base T Ethernet 6524-hour format 502590 Scanner 20°C 50, 56, 108°F 50, 56, 108AABSOLUTE ERROR 107Absolute

1594A/1595A Super-Thermometer 116DATE FORMAT 47, 57Daylight Saving 100DAYLIGHT SAVING 51, 58DECIMAL FORMAT 47, 57decimal point 18Decimal setting

117 Interface Commands 70INTERNAL 53Internal Memory 41, 42Internal Resistor Calibration 108IP address 51, 66IP Address 96IP ADDRESS 51ISO Guid

1594A/1595A Super-Thermometer 118PHASE 45POLARITY 104POLYNOMIAL 35, 36PORT ENABLE 51, 52, 69port number 65Power Entry Module 15Power Standby key

119 Scanner Connection 20scanning 90Scanning 62SCAN SETTINGS (F1) 39Screens 23Screen Saver 47SCREEN SAVER DELAY 47, 57SCREEN SAVER ENABLE 47,

3Before You StartAuthorized Service CentersFluke South East Asia Pte Ltd.Fluke ASEAN Regional OfficeService Center60 Alexandra Terrace #03-16The Comtec

1594A/1595A Super-Thermometer 120TRACE 50T(R) POLYNOMIAL 36TYPE 34UUnit 56UNIT 50unlimited 79UNLIMITED 49Unlimited mode 49Unpacking 15UPDATE

5Introduction and SpecicationsSpecications2 Introduction and Specications2.1 IntroductionThe Fluke family of Hart Super-Thermometers long ago est

1594A/1595A Super-ThermometerSpecications6Primary Specications: the core set of measurement accuracy specications of the Super-Thermometer. They ar

7Introduction and SpecicationsSpecicationsTable 3 Resistor Stability SpecificationsResistor (Rs) Accuracy (ppm of reading), 95% condence level24 ho

1594A/1595A Super-ThermometerSpecications8Table 5 Measurement Current Accuracy SpecificationsCurrent Range Accuracy99% condence level, 1-year0.001 mA

9Introduction and SpecicationsSpecications2.2.4 General SpecicationsTable 8 General SpecificationsWarm-up period 30 minutesMeasurement range 0W to

Fluke Corporation799 E. Utah Valley Drive • American Fork, UT 84003-9775 • USAPhone: +1.801.763.1600 • Telefax: +1.801.763.1010E-mail: support@hartsci

1594A/1595A Super-ThermometerSpecications10When calibrating an SPRT on the ITS-90, the WT90 value is measured at required xed-point temperatures. Th

11Introduction and SpecicationsSpecicationsis converted to temperature by dividing 0.03 ppm by 1.0 × 106 and then multiplying by 1.02. The result is

1594A/1595A Super-ThermometerSpecications12of the SPRT at 157 °C which is 0.1 Ω/°C (see tip above). This results in a standard temperature uncertaint

13Introduction and SpecicationsSpecications2.2.5.4.2 Example 3: Measuring Zero-Power ResistanceThe purpose of this example is to demonstrate how th

1594A/1595A Super-ThermometerSpecications14257 Ω. Divide the result by the sensitivity of the PRT (dR/dT) at 420 °C. This can be found in the PRT cal

15Preparation for OperationLine Voltage and Fuses3 Preparation for Operation3.1 Unpacking and InspectionThe Super-Thermometer is shipped in a contai

1594A/1595A Super-ThermometerConnecting to Line Power161. Disconnect line power.2. Observe what line voltage setting is displayed in the PEM window.

17Front and Rear Panel FeaturesFront Panel Features4 Front and Rear Panel Features4.1 IntroductionThe Super-Thermometer has been designed with sever

1594A/1595A Super-ThermometerFront Panel Features184.2.3 Front Panel KeysTable 10 Front panel key descriptionsThe Power Standby key turns off the dis

19Front and Rear Panel FeaturesFront Panel Features4.2.3.1 Front Panel DisplayThe Front Panel Display is shown in Figure 3. The display screen is use

iii Table of Contents1 Before You Start ... 11.1 Symbols Used ...

1594A/1595A Super-ThermometerRear Panel Features204.3 Rear Panel FeaturesFigure 4 Rear view4.3.3.1 External Resistor InputsFigure 5 External Resisto

21Front and Rear Panel FeaturesRear Panel Features4.3.2 Future Peripheral ConnectionA USB peripheral port is intended for future peripheral control.

1594A/1595A Super-ThermometerRear Panel Features224.3.4 Line Voltage ConnectionFigure 6 Power Entry ModuleThe PEM (Power Entry Module) located on th

23Menus and ScreensChanging Settings5 Menus and Screens5.1 IntroductionThis section provides detailed description of the Super-Thermometer menus and

1594A/1595A Super-ThermometerPassword Protection24In the Alpha-Numeric Interface, use the front panel arrow keys to move the cursor to the desired cha

25Menus and ScreensMeasurement Screen | | | READ RESISTOR | | MANAGE RESISTORS | | READ FILE | | WRITE FILE | |

1594A/1595A Super-ThermometerMeasurement Screen26or by pressing and releasing the MENU key then pressing the EXIT key. The following describe each sec

27Menus and ScreensMeasurement ScreenOVEN - indicates whether the resistor oven is stable and ready for measurement. After power up, the OVEN eld wil

1594A/1595A Super-ThermometerMain Menu285.6.6 START/STOP MEASUREMENT (F1)The Start/Stop Measurement function key is a toggling function key that star

29Menus and ScreensMain MenuDISPLAY MENU - used to congure display settings, and statistics settings as well as selecting temperature measurement uni

1594A/1595A Super-Thermometer iv4.3.5 Earth Ground Connection ...

1594A/1595A Super-ThermometerMain Menu305.7.1.2 CHANNEL SETTINGS (F2)MAIN MENU | CHANNEL SETUP | With the desired channel selected in the Channel Set

31Menus and ScreensMain Menu5.7.1.2.1 SET UP Rs (F1)MAIN MENU | CHANNEL SETUP | CHANNEL SETTINGS |Pressing the Set Up Rs function key displays the Rs

1594A/1595A Super-ThermometerMain Menu325.7.1.2.1.1.3 EDIT RESISTOR (F2) MAIN MENU | CHANNEL SETUP | CHANNEL SETTINGS | SET UP Rs | DEFINE RESISTOR |

33Menus and ScreensMain Menuwrite the le. If a USB memory device has not yet been inserted, the user is instructed to do so. Allow about 10 seconds f

1594A/1595A Super-ThermometerMain Menu345.7.2 PROBE MENU (F2)MAIN MENU |Figure 11 Probe Menu ScreenThe Probe Menu contains the function keys needed f

35Menus and ScreensMain MenuCALIBRATION DATE - the calibration date of the probe. The digits may be set to zero if the date is undened.NOMINAL CURREN

1594A/1595A Super-ThermometerMain Menu36Type Conversion Coefficients EquationsTHERMISTOR R(T) POLYNOMIAL B0, B1, B2, B3RBtiii[] exp[] .Ω=+

37Menus and ScreensMain Menu5.7.2.4 READ PROBE (F4)MAIN MENU | PROBE MENU |The Read Probe function key allows the user to read a probe denition from

1594A/1595A Super-ThermometerMain Menu38If the \159x\probe\ folder and .prb le have not been created previously, they will be created automatically w

39Menus and ScreensMain MenuThe following are complete descriptions of each function key.5.7.3.1 SCAN SETTINGS (F1)MAIN MENU | MEASURE MENU |Scan Set

v 6.2 User Settings Screen ...576.3 Connecting a Probe

1594A/1595A Super-ThermometerMain Menu4041) if the digital filter is ON. If the digital filter is OFF, measurement samples are passed directly to Conver

41Menus and ScreensMain MenuPRESET PRECISION (F2) - sets the timing settings for minimal measurement noise and settling error with most thermometer pr

1594A/1595A Super-ThermometerMain Menu42Important: Avoid switching power off to the Super-Thermometer while measurement and recording are in progress

43Menus and ScreensMain Menu5.7.3.4.3 READ FILE (F3) MAIN MENU | MEASURE MENU | RECORDING MENU |The Read File function key allows the user to view me

1594A/1595A Super-ThermometerMain Menu44Tip: Zero-Power measurements must be performed in a very stable heat source so temperature drift does not inte

45Menus and ScreensMain MenuCHANNEL - the measurement channelPROBE - the ID of the probe TIME REMAINING - the amount of time left to complete the zero

1594A/1595A Super-ThermometerMain Menu46PROBE,<probe ID>ZERO_MEAS,<corrected measurement>,<unit>SELF_HEAT,<self heating>,<u

47Menus and ScreensMain Menu5.7.4.1 USER SETTINGS (F1)MAIN MENU | DISPLAY MENU |The User Settings screen allows the user to set preferences such as l

1594A/1595A Super-ThermometerMain Menu48When the User Settings screen appears after power-on, when the Start-Up Help setting is ON, the User Set-tings

49Menus and ScreensMain Menu5.7.4.3 STATISTICS SETTINGS (F3)MAIN MENU | DISPLAY MENU |The Statistics Settings screen allows the user to set statistic

1594A/1595A Super-Thermometer vi8.7.3.24 CALC<n>:DELT:DATA? ...

1594A/1595A Super-ThermometerMain Menu50TRACE - controls whether a measurement point is plotted with a line that connects to the previous point or as

51Menus and ScreensMain MenuDAYLIGHT SAVING - determines whether the clock is automatically adjusted at the beginning and end of the Daylight Saving p

1594A/1595A Super-ThermometerMain Menu52SUBNET MASK - species the network’s subnet mask when DHCP is OFF. Gateway and Subnet Mask are not available w

53Menus and ScreensMain Menu5.7.5.3.1 STORE CONFIG (F1)MAIN MENU | SYSTEM MENU | CONFIG |The Store Conguration function allows the user to store set

1594A/1595A Super-ThermometerMain Menu545.7.7 DELETE CONFIG (F3)MAIN MENU | SYSTEM MENU | CONFIG |The Delete Conguration function may be used to del

55Menus and ScreensMain MenuRESISTOR PROTECTION - enables or disables protection of resistor denition related screens. This setting is useful for ens

1594A/1595A Super-ThermometerMain Menu56In the Calibration Parameters screen the user may view and change measurement calibration settings. The calibr

57Getting StartedUser Settings Screen6 Getting Started6.1 Powering on the Super-ThermometerCAUTION: Before powering the Super-Thermometer on, ensure

1594A/1595A Super-ThermometerConnecting a Probe or Resistor58KEYPAD BEEP- enables (ON) or disables (OFF) the audio indication that accompanies each ke

59Getting StartedConnecting a Probe or ResistorThe DWF connectors are labeled with C1, C2 (current connections) and P1, P2 (measurement potential con-

vii 8.7.3.80 SENS:APER[:DISP] <time> ...928.

61Making MeasurementsMeasuring a Temperature Probe7 Making Measurements7.1 IntroductionThe Super-Thermometer has been designed to allow quick and ea

1594A/1595A Super-ThermometerScanning Multiple Temperature Probes627. If the desired measurement channel is set to Off, use the ON/OFF (F3) function

63Making MeasurementsMaking A Zero-Power Measurementc. Select the SETUP RS (F1) function key.d. Select the DEFINE RESISTOR (F2) function key.e. Sel

65Remote OperationConguring the Network (LAN) Port8 Remote Operation8.1 IntroductionThis section contains instructions for controlling the Super-Th

1594A/1595A Super-ThermometerConguring the Network (LAN) Port66Conguring the LAN port is accomplished through the Remote Interface section of the Sy

67Remote OperationConguring the Network (LAN) Port1. In the NETWORK screen, use the Up/Down arrow keys to select DHCP ENABLE.2. IF DHCP is set to O

1594A/1595A Super-ThermometerUsing the Web Interface681. In the NETWORK screen, use the Up/Down arrow keys to select HOST NAME.2. While HOST NAME is

69Remote OperationConguring the IEEE-488 Port1. Press the MENU key.2. Select the SYSTEM MENU (F5) function key3. Select the REMOTE INTERFACE (F2)

1594A/1595A Super-Thermometer viii8.7.3.136 TEST:LIN[:STAT]? ...

1594A/1595A Super-ThermometerInterface Commands708.7 Interface CommandsAn alphabetical listing of the commands implemented by the Super-Thermometer i

71Remote OperationInterface CommandsCommand FunctionAssociated Setting or Function (screen)CAL:DATE Sets the instrument’s date of calibration Calibrat

1594A/1595A Super-ThermometerInterface Commands72Command FunctionAssociated Setting or Function (screen)INIT:CONT Starts or stops measurement START/ST

73Remote OperationInterface CommandsCommand FunctionAssociated Setting or Function (screen)SENS:APER:PRES Sets the measurement timing settings to pres

1594A/1595A Super-ThermometerInterface Commands74Command FunctionAssociated Setting or Function (screen)SYST:PASS:GROU:RES Sets the password Resistor

75Remote OperationInterface CommandsBit Event0 OPC, Operation Complete1 Request control (not used)2 Query error3 Device dependent error4 Execution err

1594A/1595A Super-ThermometerInterface Commands76Query form: *SRE?Sets the Service Request Enable register. This mask register determines which corres

77Remote OperationInterface CommandsSets the calibration Zero Correction parameter.This setting may be used to apply a zero correction to the measurem

1594A/1595A Super-ThermometerInterface Commands78Query form: CALC:AVER:COUN?Alternate parameter: DEF, MIN, MAXSets the statistics Sample Count setting

79Remote OperationInterface Commands8.7.3.19 CALC<n>:AVER:SEM?Example command: CALC3:AVER:SEM?Example response: 0.000039Reads a channel’s stati

ix FiguresFigure 1 PEM (Power Entry Module) ...16Figure 2 Front view ..

1594A/1595A Super-ThermometerInterface Commands80Sets the Delta Channel setting (see Section 5.7.4.3, STATISTICS SETTINGS (F3), on page 49).Parameter

81Remote OperationInterface Commands8.7.3.29 DATA:REC:FILE <name>Query form: DATA:REC:FILE?Sets the data recording USB File name (see Section 5

1594A/1595A Super-ThermometerInterface Commands82Reads a statistics eld setting of the visible statistics elds memory set (see Section 5.7.4.2, FIEL

83Remote OperationInterface CommandsSets the display Rs Due Alert enable (see Section 5.7.4.1, USER SETTINGS (F1), on page 47). The default setting is

1594A/1595A Super-ThermometerInterface Commands84Alternate parameter: DEF, MIN, MAXSets the stop timer’s Timer Duration setting (see Section 5.7.3.2,

85Remote OperationInterface CommandsAdds a new probe denition to the Probe Library. Before a probe can be assigned to a channel and tem-perature meas

1594A/1595A Super-ThermometerInterface Commands86Reads the ID of the next probe in the Probe Library. It also advances the library index used for the

87Remote OperationInterface CommandsC0 – C7 C0 – C7 exponential numberThermistor type settingsMaximum Temperature MAX_TEMP decimal number, dependent o

1594A/1595A Super-ThermometerInterface Commands88A channel’s Calculation setting will be changed from temperature to resistance (see Section 8.7.3.27,

89Remote OperationInterface CommandsSets the resistor denition assigned to a front reference resistor input. (Use the command INP:REAR<n>:RS:ID