Ametek ASC-400 Adjustment Manual

Ametek ASC-400 Adjustment Manual

Advanced signal calibrator
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Adjustment Manual
Advanced Signal Calibrator
ASC-400

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Summary of Contents for Ametek ASC-400

  • Page 1 Adjustment Manual Advanced Signal Calibrator ASC-400...
  • Page 2 Adjustment Manual Advanced Signal Calibrator JOFRA ASC-400  Copyright 2014 AMETEK Denmark A/S...
  • Page 3: Table Of Contents

    List of contents 1.0  Overview ............................ 3  2.0  Initiating Communication ......................4  3.0  Adjusting and calibrating the ASC-400 .................. 5  4.0  Test equipment ......................... 5  5.0  ASC-400 Adjustment procedures ................... 6      Adjusting Isolated current (mA) Input: ....................6  ...
  • Page 4: Overview

    Overview The ASC-400 Advanced Signal Calibrator has a built in adjustment function for readjustment of the calibrator. This adjustment function is based on a simple ASCII protocol, and you can get access to that function by the USB interface. You can use a terminal program like HyperTerminal by accessing the instrument via the USB interface, or you can develop your own dedicated adjustment program in Visual Basic, Labview, etc.
  • Page 5: Initiating Communication

    After a while the computer will ask for a driver and you have to locate the driver on the USB-stick in the subfolder utilities. When the driver is installed you will get a virtual COMPORT named AMETEK Advanced Signal Calibrator. Start up your preferred terminal program and locate this Virtual COMPORT in the terminal setup.
  • Page 6: Adjusting And Calibrating The Asc-400

    Once a particular adjustment menu selection has been made the user is prompted to either input a signal into the ASC-400 or enter the output value of a signal from the ASC-400. When inputting signals into the ASC-400, the readings are taken after the {enter} key is pressed and before the next prompt.
  • Page 7: Asc-400 Adjustment Procedures

    ASC-400 Adjustment procedures Adjusting Isolated current (mA) Input: 1. Connect Calibrator mA output to Digital Multimeter mA input and to ASC-400 Isolated mA measure terminals. 2. Type “1” in the Calibration menu. Prompt = “Input 0 mA to ASC400 - Press <enter> when stable”...
  • Page 8: Adjusting Voltage Input

    4. Enter multimeter read value when stable (example: 24.0000) and press “enter”. ASC-400 now returns to the Calibration menu. Adjusting Voltage input: 1. Connect Calibrator V output to Digital Multimeter V input and ASC-400 V measure terminals. 2. Type “5” in the Calibration menu.
  • Page 9: Adjusting Low Resistance Output

    5. Apply 400.00 ohm to the input and press “enter” when stable. Prompt = “Input 4000 ohm to ASC400 - Press <enter> when stable” 6. Apply 4000.0 ohm to the input and press “enter” when stable. ASC-400 now returns to the Calibration menu.
  • Page 10: Adjusting Thermocouple (Mv) Output

    5.10 Adjusting Thermocouple (mV) Output: 1. Connect Digital Multimeter V input to ASC-400 mV source terminals (use TC to banana cable). 2. Type “10” in the Calibration menu. 3. Follow the menu prompts. Prompt = “First calibration point. Enter mV output:”...
  • Page 11: Barometric Reading (Asc-400-1 Only)

    3. Apply 0.95 bar absolute to the ASC-400 and press “enter” when stable. Prompt = “Apply 1.05 bar absolute - Press <enter> when stable” 4. Apply 1.05 bar absolute to the ASC-400 and press “enter” when stable. ASC- 400 now returns to the Calibration menu.
  • Page 12: Exiting Calibration Procedures

    This procedure does not cover the verification of the unit. As a rule of thumb the unit should never use up more than 50% of its specifications immediately after adjustment. Also the person adjusting the ASC-400 can exit and enter calibration mode at will, while doing the verification as they go.
  • Page 13 Tel +49 (0)2159 9136 510 info.mct-de@ametek.de Tel +91 22 2836 4750 Guangzhou jofra@ametek.com Tel +86 20 8363 4768 Denmark jofra.sales@ametek.com.cn Tel +45 4816 8000 jofra@ametek.com Information in this document is subject to change without notice. ©2014, by AMETEK, Inc., www.ametek.com. All rights reserved.

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