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Isotech PHTC-783 User's Operation Manual

Portable high temperature calibrator
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User Operation Manual
PHTC-783
Portable High Temperature Calibrator
Isothermal Technology Limited
Isotech North America, Inc
Pine Grove, Southport,
158 Brentwood Drive, Unit #4
Colchester, VT 05446
Merseyside, PR9 9AG, England
Telephone: +44 (0)1704 543830
Phone: +1 (802) 863 8050
Email:
info@isotech.co.uk
Email:
sales@isotechna.com
Website:
www.isotech.co.uk
Website:
www.isotechna.com
V 1.11
i |
P a g e

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Summary of Contents for Isotech PHTC-783

  • Page 1 User Operation Manual PHTC-783 Portable High Temperature Calibrator Isothermal Technology Limited Isotech North America, Inc Pine Grove, Southport, 158 Brentwood Drive, Unit #4 Colchester, VT 05446 Merseyside, PR9 9AG, England Telephone: +44 (0)1704 543830 Phone: +1 (802) 863 8050 Email: info@isotech.co.uk...
  • Page 2 This publication is for information only. Limit of Liability Isotech’s liability in all cases is limited to the initial purchase price of the instrument. Acceptance and use of this instrument signify acceptance of this clause and holds harmless, Isothermal Technologies Limited and Isotech North America Inc.

  • Page 3: Table Of Contents

    4.7. The Settings Menu ..............................21 4.8. The System Menu ..............................21 SPECIFICATIONS ................................22 REMOTE COMMANDS ..............................25 MAINTENANCE 7.1. Taking Care of your PHTC-783 ..........................28 7.2. Calibration Adjustments ............................. 28 ACCESSORIES ................................35 STORAGE AND TRANSPORTATION ......................... 38 APPENDIX ..................................39 V 1.11...

  • Page 4: Before You Start

    A unique self-calibration feature allows users to connect an 8.5-digit DMM, such as an Agilent/HP 3458A or Transmille 8104, via the IEEE interface and with an SPRT connected to the DMM the PHTC-783 can run through a 5-point auto Cal/Adjust process. Traditional manual calibration techniques are included as well.

  • Page 5: Unpacking And Initial Inspection

    Figure 1 “unpacking your PHTC- 783”. If you find any damage or that part of the delivery is missing notify Isotech and the carrier immediately. If the unit is damaged, you should keep the packing for possible insurance assessment.
  • Page 6 Figure 2 What you should have received included with your PHTC-783 1. PHTC-783 temperature calibrator 7. Accessory Case 2. Metal identification plate (See Figure 3) 8. Layered foam with (4) unique inserts per layer 3. Insert extraction tool 9. Operation manual, Test report & Documentation CD 4.

  • Page 7: Before You Use The Equipment

    1.3 Before You Use the Equipment Please read the handbook and familiarize yourself with all warnings, hazards and safety information. Regularly inspect the equipment, accessories and electrical leads. Do not use if there is any sign of damage. Keep the equipment clean, only use a damp cloth.

  • Page 8: Electricity Supply

    1.5 Electricity Supply Before connecting to the electricity supply please familiarize yourself with the parts of the manual relevant to your model. Your unit's supply voltage requirement is specified on a label on the power inlet fuse holder (on/off switch). Only connect to a power supply matching the requirement stated on the equipment.

  • Page 9: Be Careful Where It Us Used

    • Inserts for low temperature models may melt and cause a fire if used in high temperature models • Only use Isotech inserts which are specially treated to avoid them from becoming stuck in the calibration volume • Do not use powders, liquids or compounds in the insert; this may lead to the insert or probes becoming stuck 1.10 Consider the Environment...

  • Page 10: Quick Start

    Set your first temperature set point / or run an existing procedure 2.1 Setting up a Safe Work Area (Quick Start Step 1) The PHTC-783 must be used on a flat level surface, with adequate space around it for air flow and avoid blocking ventilation slots Keep your work area free of clutter;...

  • Page 11: Tour Your Phtc-783

    Rotate to increase or decrease numeric values or scroll This LED will illuminate during startup if the internal through the alphanumeric screen keypad. temperature of the PHTC-783 is too cold for safe operation Pressing will function as a selection or enter when to full specification appropriate V 1.11...

  • Page 12: Powering Up The Phtc-783

    A blank display at stage 2, for 5 seconds is a normal part of the power on sequence. The PHTC-783 will always power up with a control set point of 38°C or 100.4°F to ensure safe operation on startup or after loss of power. The temperature units °C/°F will remain in the last state selected before powering down.

  • Page 13: Display Information

    Displays programmed Min and Max temperature control they are safe to touch or not limits for the PHTC-783. Used to protect sensors and switches not capable of the full range of the PHTC-783 2. Heating / Cooling Indication 7. Safety Warning Display...

  • Page 14: Choosing The Correct Insert

    2.5 Choosing the correct insert “reducing sleeve” (Quick Start Step 5) Proper selection of inserts is critical for accurate temperature calibrations. Each insert is etched with the suggested probe diameter for use, including multi-hole inserts and specialty inserts such as the D573 “Flow Gator” sleeve. Select the insert with internal diameter closest to the diameter of the sensors to be tested.

  • Page 15: Setup Diagram For Probe Or Temperature Switch Tests

    2.6 Insert the Temperature probe or switch to be calibrated (Quick Start Step 6) Set up for Thermal Switch Test Set up for Temperature Probe Test Figure 12 Figure 11 2.7 Setting a Control Set Point (Quick Start Step 7) There are three ways to enter a new manual control set point.

  • Page 16: Theory Of Operation

    UUT. In the most basic configuration, the units under test could be compared to the display of the temperature controller. For simple testing and low accuracy requirements this method is adequate. Typical configurations of the PHTC-783 are shown in the preceding Section 2.6 (figures 11 & 12) V 1.11 13 |...

  • Page 17: Menu Overview

    4.0 Using your PHTC-783 4.1 Graphical Full Menu Overview Figure 13 V 1.11 14 | P a g e...

  • Page 18: Switch Info

    4.3 Setting the Stem Mode Press the [SET STEM] selection arrow from the main display to change the stem mode of the PHTC-783. There is visual indication on the main display to show which Stem Mode the calibrator is currently in.

  • Page 19: Running An Existing Procedure

    Once UUT information is entered you can select [START FIRST RUN]. At this point the procedure display will appear and the PHTC-783 will cycle through the predefined test points written into the procedure. At any point during a calibration run you can press [MENU] to return to the procedure menu to •...

  • Page 20: Using A Switch Procedure

    4. At each step increment, you will hear a clicking noise as if you manually adjusted the set point. 5. Once the Switch inputs see a contact closure, the PHTC-783 will notify the user via an audible double beep as well as a “Switch Actuation” display on the screen.

  • Page 21: Using A Probe Procedure

    3. Press the [NEXT] selection arrow to advance the next test point and repeat step 2 until the last test point is measured and recorded. 4. At this point the PHTC-783 will control to the programmed “Finish Temperature” in the procedure which will be in a safe operating range 5.

  • Page 22: Create, Edit Or Delete Procedures

    4.6 Create, Edit or Delete Procedures The PHTC-783 has an onboard procedure creating utility to create semi-automated procedures directly from the calibrator without the need for external software utilities or computers By selecting [PROCEDURE MANAGEMENT] from the [MENU], you are able to create, edit, delete, copy and import / export procedures.

  • Page 23: Creating Test Points For A Probe Procedure

    After entering the default characteristics as described above press the [BACK] key and then press [EDIT TEST] to get to the test menu to create specific test points for the new procedure. Parameter Description of this specific parameter Test Title Alphanumeric title for each test, ex.

  • Page 24: The Settings Menu

    Reference PRT setup, DMM selection and GPIB Address. The system menu also allows advanced users to update the firmware of the PHTC-783 and to view or print the full system configuration. For detailed information on recalibration of your PHTC-783 refer the Calibration Cal/Adjust section 6.2...

  • Page 25: Specifications

    Specifications Ambient Temperature vs PHTC‐783 Working Temperature Range This PHTC‐783 is designed to operate in a variety of ambient conditions. According to Navy specification, the PHTC‐ 783 has a sliding full temperature range and varying accuracies depending on the ambient temperatures. This is documented in the table below and illustrated in the graphic above.
  • Page 26 Uniformity ±1.44°F (±0.8°C) PHTC‐783 Heating and Cooling Times 70°F to 1220°F (21.1°C to 660°C) 22 minutes (heat up) 1220°F to 200°F (660°C to 93.3°C) 120 minutes (cool down) Environmental Conditions Ambient Temperature Range 0-50°C (32-122°F) Ambient Relative Humidity 0 % to 90 % (non-condensing) Power 120V RMS (not to exceed 1500W) 50 and 60Hz Fuse...
  • Page 27 Common Specifications Minimum life expectancy 15 years Safety Standard IEC61010‐1 Altitude Durability Units shall conform to all requirements after being subjected to an altitude of 15,000 feet for 1 hour with equipment not operating Storage Temperature ‐22°F (‐30°C) to 160°F (71°C) with a relative humidity of 0 to 100% After Storage Acclimatization period of 1 hour Pre‐warming period of 2 hours...

  • Page 28: Remote Commands

    DATA BITS PARITY NONE STOP BITS TERMINATOR SETTINGS COMMAND <CR><LF> TERMINATOR <CARRIAGE RETURN><LINE FEED> COMMAND DESCRIPTION NOTES ISOTECH" & "," Settings.device_model_number & *IDN? Get Device information "," Settings.device_serial_number & "," Settings.versionNumber *RST Reset Device *TST Self Test TEMP:BLOCK? Get block temperature...
  • Page 29 SECURE COMMANDS ACCESSIBLE ONLY AFTER SYST:PASS:CEN COMMAND ENABLES PASSWORD MODE COMMAND DESCRIPTION NOTES ALLOWS ACCESS TO SYST:PASS:CEN<PASSWORD ENTER PASSWORD RESTRICTED > REMOTE FUNCTIONS CLEARS PASSWORD – SYST:PASS:CDIS<PASSWOR DISABLE DEACTIVATES D> PASSWORD ACCESS TO RESTRICTED FUNCTIONS RETURNS 0 = DISABLED SYST:PASS:STAT? 1 = ENABLED PASSWORD ENTRY STATE...
  • Page 30 782 / 783 CALIBRATION STEPS 782 PLTC CAL STEPS LONG MAIN SHORT MAIN 783 PHTC CAL STEPS LONG MAIN LONG ZONE SHORT ZONE V 1.11 27 | P a g e...

  • Page 31: Maintenance

    DO NOT operate the instrument in an oily, wet, dirty, or dusty environments. DO make efforts to keep your PHTC-783 clean and dry, if it becomes dirty use only a damp cloth to clean it. DO NOT use harsh chemicals on the surface, which may damage the case.
  • Page 32 The calibration concept is the same for both Automatic and Manual Cal/Adjust. The internal temperature sensor of the PHTC-783, which is the primary display temperature of the well, is compared and aligned to an external measurement system of higher accuracy.
  • Page 33 To use the Automatic Cal/Adjust the calibration constants from your reference probe must be entered into the PHTC-783 because the HP 3458A does not display in temperature values. The PHTC-783 will read the resistance from the DMM and convert it to temperature internally via the calibration factors.
  • Page 34 Example: Sample Rate = 10s, Sample Count =5, System Accuracy = 0.05°C. In this example, at each control point the PHTC-783 will count 10 seconds before each reading / display update. It then needs to see 5 consecutive readings within 0.05°C before making the adjustment and proceeding to the next control point: or 50 seconds within 0.05°C.
  • Page 35  Then monitor the DMM reference resistance/temperature for stability according to the programmed calibration parameters  Once criteria are achieved the PHTC-783 will record the value and proceed to the next set point  The operator will be notified on display when the process is complete Once the Cal/Adjust is completed review the data on screen for accuracy.
  • Page 36  Calibrated Reference Sensor: Isotech 935-14-95NAV PRT  Precision Thermometer: Isotech Millik Thermometer or equivalent Calibration must be performed in a temperature controlled, draft free laboratory environment. Setup the PHTC- 783, Reference Probe, and Precision Thermometer as in Figure 18 Figure 18 7.2.2.1 Initiating Manual Cal/Adjust...
  • Page 37 Figure 19 The control points are preset for optimum Cal/Adjust and are not adjustable. At each control point the PHTC-783 will  Monitor the well temperature and indicate when the stability criteria have been reached  Once the stability indicator is present and your reference measurement system is stable, use the keypad to enter the temperature on your reference system ...

  • Page 38: Accessories

    8. Accessories 783 Portable High Temperature Calibrator (P.H.T.C.) Accessories in Lid Description Isotech Part Number Image (not to scale) Insert Removal Tool 782-06-00 Test Lead - Short 935-16-190 Insert - PHTC#1 783-06-01 Insert - PHTC#2 783-06-02 Insert - PHTC#3 783-06-03...
  • Page 39 783 Portable High Temperature Calibrator (P.H.T.C.) Accessories in Accessory Case Description Isotech Part Number Image (not to scale) Power Cable (110V) 935-16-92 CD Technical Manual 782-08-01 Test Lead - Long 935-16-191 Insert - PHTC#5 783-06-05 Insert - PHTC#6 783-06-06 Insert - PHTC#7...
  • Page 40 V 1.11 37 | P a g e...

  • Page 41: Storage And Transportation

    9. Storage and Transportation Your PHTC-783 has been supplied in customized packaging and should be shipped back in this packaging or equivalent should service be required. If the original packaging is no longer available, please ensure at least 4” of dense packing material surrounds all sides of the PHTC-783 for protection.

  • Page 42: Appendix

    Appendix A V 1.11 39 | P a g e...
  • Page 43 Appendix B V 1.11 40 | P a g e...

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