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Tegam 940A Operation Manual

Digital temperature calibrator-thermometer
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D
T
IGITAL
EMPERATURE
T
HERMOMETER
Model:
940A / 945A
Operation
Manual
rev A
10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ●
C
T/C Thermometer
Manual Part Number: 940A-900, Rev. A
Published February 2019, Geneva, OH
sales@tegam.com
ALIBRATOR
940A/945A
-

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Summary of Contents for Tegam 940A

  • Page 1 940A/945A IGITAL EMPERATURE ALIBRATOR HERMOMETER Model: 940A / 945A T/C Thermometer Operation Manual rev A Manual Part Number: 940A-900, Rev. A Published February 2019, Geneva, OH 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 2 FAR 12.211 (Technical data) and FAR 12.212 (Computer software) for the federal government, 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 3: Table Of Contents

    Warranty Limitations ..............4-11 Statement of Calibration ..............4-12 A. Required Equipment ................A-i B. Expanded Instrument Uncertainties ............B-i C. Instrument Verification Data Sheet ............C-i 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 4: Instrument Description

    -260°C – 400°C -120 to -70 ±0.4 -436°F – 752°F -70 to 80 ±0.3 80 to 400 ±0.2 See Graphs in Appendix B for Expanded Uncertainties 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 5 100 to 230 ±0.4 32°F – 4199°F 230 to 2315 ±0.3 Thermocouple types B, N, R, S, C, D, G, P, L and U are model 945A only. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 6 Keypad feedback Instrument retains: Sensor Type, Temperature Unit Power Cycle Configuration Offset Values, Presets, Statistics, Open Lead detection Retention status, 0%/100% span settings, and operating mode 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 7 3 AA Batteries, Quick Start Guide, Tilt Stand/Magnetic, Included Accessories Calibration Report HYSICAL HARACTERISTICS Dimensions 193 x 84 x 28 mm 7.6 x 3.3 x 1.1 in Weight including 362.9g 12.8 oz. Batteries 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 8: Optional Accessories And Ordering Information

    TEGAM Family of Thermometers 911B Thermocouple Thermometer, Single Input Thermocouple Thermometers 912B Thermocouple Thermometer, Dual Input 931B Data Thermometer, Single Input Data Thermometers 932B Data Thermometer, Dual Input 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 9: Preparation For Use

    Typical battery life under normal use conditions in laboratory environment. Continuous or repeated use of features such as the backlight or use or storage at high or low temperature extremes may reduce battery life. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 10: Safety Notices And Information

    Never use or store this product with batteries installed, or change batteries, in an environment where explosive or flammable vapors or dust suspensions may exist. For thermocouple thermometers suitable for use in explosive environments, see TEGAM’s 921A or 922A Intrinsically Safe Thermometers.
  • Page 11 Static discharge through a connected temperature probe may cause instrument damage. Use care to avoid static discharge when handling the instrument or connected probes. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 12: Unpacking And Inspection

    Use the original packing materials if reshipment is necessary. If any dents, broken, or loose parts are seen, do not use the equipment. Notify TEGAM immediately. Check that all items are present. If any items are missing, notify TEGAM immediately.

  • Page 13: Initial Power On

    The active thermocouple type is flashing on the display. Use to select the desired thermocouple type. You are setting the thermocouple type of the Read Channel.; 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 14 To save the current parameter value and exit the Setup Menu, press To disregard changes made to the current parameter value and exit the Setup Menu, press 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 15: Operating Instructions

    Figure 2 Keypad Button Functional Description , and keys have multiple functions which can be accessed by momentarily pressing the key, or alternatively, by pressing and holding the key for 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 16: Lcd Display

    TC input. Source output is matched to the reading using the same user settings. Bluetooth symbol on LCD reserved for future models. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 17 Under Range: The applied temperature is less than the minimum U rnG temperature for the selected thermocouple type Figure 4: LCD Error Indications 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 18: Setup Menu

    °C and °F”. If parameter 2 is set to “mV”, the remaining parameter choices available are in Figure 5 below under “Setup Choices for mV”. STATS are not active in mV mode. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 19 If on – Set Span Set 100% Level The 945A includes K,J,T,E,B,N,R,S,G,C,D,P,L,U All though still selectable, TC type is not visible on LCD while mV is the active unit 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 20: View Modes And Statistics

    Standard Deviation STDEV during the current session Standard Deviation is calculated using the population formula: ���� = � ∑(����−µ) ���� Figure 6: View Modes and Statistics 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 21: Auto-Power Off

    Auto-power off will remain disabled until instrument power is cycled. At next power on, auto-power off returns to the default enabled condition. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 22: Backlight And Backlight Timeout

    SOURCE output = READ voltage + CJC voltage. This mode would be used for troubleshooting systems and readouts. The “Transfer” icon will blink and illuminate if selected. Figure 8: Operating Modes 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 23: Trend Indicators

    Current statistics will be invalidated after changing settings such as probe offset. Press (1.5s) to delete existing statistics data and initiate a new statistics session. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 24 Probe offset measurement using an ice bath or thermowell should only be performed by personnel trained and qualified in the use of such instruments and related metrology methods. 3-10 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 25: Open Lead Detection Enable/Disable

    The LCD display will indicate CLEAr to confirm the action and return to active measurement mode. 3-11 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 26: Presets: Save, Recall And Erase

    Once the desired preset is recalled, press the (1.5s) . The preset number should now be flashing. While the preset number is flashing, press (1.5s) . “CLEAr” will appear on the LCD 3-12 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 27: Invalid Measurement Indications

    Cannot compute a valid statistical result A thermocouple, shorted transducer, or other short circuit is Short ChAn1 plugged into the Source Channel during startup. Figure 10: Invalid Measurement Indications 3-13 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 28: Service Information

    Suitable accuracy means a metrology-grade DMM. To achieve mV limits shown in Appendix C, the DMM must have accuracy equivalent to 30 ppm of reading and 9 ppm of range on the 100mV range. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 29 For “Source DC Volts Channel 1”, a PASS result is any “Measurement Result” value that is equal to or in between the Lower Limit and Upper Limit error numbers. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 30 An insulated box inside a calibration lab environment, see Appendix A. An accurate thermometer specification is 2 Sigma uncertainty ≤ .04°C (40mK) at the verification temperature. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 31 Customers performing CJC adjustments in their facility will need to calculate their own CJC uncertainty. Remove the UUT battery door housing to expose the alignment access hole. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 32 With the probe as close as reasonable to the channel 1 CJC, and temperature stabilized, enter the externally measured temperature in Celsius for channel 1. Repeat this step for Channel 2, CAL 12. See figure 13 above. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 33: Troubleshooting

    Unexpected statistics views until active reading on Statistics View Mode is active measurement is displayed (see Line 2 of Section 3.4 View Modes and Display Statistics) 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 34: Diagnostic Routines And Error Codes

    Figure 17 below. RROR ESCRIPTION Err ADC Analog to digital converter error Err InP Stuck key or other keypad error Figure 17: Diagnostic Routine Error Codes 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 35: Memory Sterilization

    (1.5s) . See Section 3.12, Clear Function for instructions. Instrument parameters will be retained. Refer to Section 3.3, Setup Menu to set instrument parameters as desired. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 36: Preparation For Calibration Or Repair Service

    Once this information is prepared and sent with the instrument to our service department, we will do our part to make sure that you receive the best possible customer service and turnaround time possible. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 37: Expedite Repair & Calibration Form

    When is the problem most frequent?, has anything changed with the application since the last time the instrument was used?, etc. 4-10 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 38: Warranty

    TEGAM service center with shipping charges prepaid. TEGAM Inc. shall pay for the return of the product to the customer if the shipment is to a location within the country in which the TEGAM service center is located.

  • Page 39: Statement Of Calibration

    International System of Units (SI) through the National Institute of Standards and Technology (NIST) or other recognized National Metrology Institutes. 4-12 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 40 UUT. The opposite end shall be terminated with copper connections appropriate for the DMM. Straightened Required to access the calibration enable switch. Any rigid wire, approximately 0.8 Paper Clip mm in diameter, may be used. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

  • Page 41: Expanded Instrument Uncertainties

    Appendices B. E XPANDED NSTRUMENT NCERTAINTIES All uncertainty specifications for all charts are K = 2 unless otherwise noted. 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 42 Appendices Following graphs show total uncertainty in degrees C (k=2), with operating condition between 18-28 °C unless otherwise noted. B-ii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 43 Appendices Thermocouple Type K B-iii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 44 Appendices B-iv 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 45 Appendices Thermocouple Type J 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 46 Appendices B-vi 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 47 Appendices Thermocouple Type T B-vii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 48 Appendices B-viii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 49 Appendices Thermocouple Type E B-ix 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 50 Appendices 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 51 Thermocouple Type B 1.6000 1.4000 1.2000 1.0000 0.8000 0.6000 0.4000 0.2000 0.0000 18C - 28C -20C Temp Uncertainty (C), k=2 +55C Temp Uncertainty (C), k=2 B-xi 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 52 Appendices B-xii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 53 Thermocouple Type N 2.0000 1.8000 1.6000 1.4000 1.2000 1.0000 0.8000 0.6000 0.4000 0.2000 0.0000 18C - 28C -20 Temp Uncertainty (C), k=2 +55 Temp Uncertainty (C), k=2 B-xiii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 54 Appendices B-xiv 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 55 Appendices Thermocouple Type R B-xv 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 56 Appendices B-xvi 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 57 Appendices Thermocouple Type S B-xvii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 58 Appendices B-xviii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 59 Appendices Thermocouple Type G B-xix 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 60 Appendices B-xx 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 61 Appendices Thermocouple Type C B-xxi 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 62 Appendices B-xxii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 63 Appendices Thermocouple Type D B-xxiii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 64 Appendices B-xxiv 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 65 Appendices Thermocouple Type P B-xxv 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 66 Appendices B-xxvi 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 67 Appendices Thermocouple Type L B-xxvii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 68 Appendices B-xxviii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 69 Appendices Thermocouple Type U B-xxix 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 70 0.0019 mV 5 mV 0.0048 mV 0.00191 mV 20 mV 0.0052 mV 0.00199 mV 80 mV 0.00675 mV 0.00306 mV 83 mV 0.00675 mV 0.00313 mV 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 71 Published temperature uncertainty values can only be achieved if the temperature of UUT is known within 40mK. Customers performing CJC adjustments in their facility will need to calculate their own CJC uncertainty. Datasheet P/N 94X-DS Revision 1.0 C-ii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...
  • Page 72 TEGAM INC. 10 TEGAM WAY GENEVA, OHIO 44041 CAGE Code: 49374 http://www.tegam.com WEB: C-iii 10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX 440-466-6110 ● sales@tegam.com...

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