Gentec-EO SDX-1239 Operating Instructions Manual

Energy meter

Advertisement

Quick Links

SDX-1239 Energy Meter

Operating Instructions

SDX-1239 Operating Instructions
Rev - 3/21/2017
Page 1 of 22

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SDX-1239 and is the answer not in the manual?

Questions and answers

Summary of Contents for Gentec-EO SDX-1239

  • Page 1: Operating Instructions

    SDX-1239 Energy Meter Operating Instructions SDX-1239 Operating Instructions Rev - 3/21/2017 Page 1 of 22...
  • Page 2: Table Of Contents

    Turning the Unit On ......................9 Power on Tests........................9 SDX-1239 Function ......................9 SDX-1239 Pulse Width Correction................11 SDX-1239 AOM Control in Control Mode ..............11 SDX-1239 Commands ..................... 12 Reading SDX-1239 Data ....................18 Reading SDX-1239 Pulse Memory ................20...
  • Page 3: Introduction

    Introduction Figure 1 shows the SDX-1239 front panel. Figure 2 shows the SDX-1239 back panel. Figure 1, SDX-1239 Front Panel Figure 2, SDX-1239 Back Panel SDX-1239 Operating Instructions Rev - 3/21/2017 Page 3 of 22...
  • Page 4: Installing The Usb Driver

    Installing the USB Driver Do not plug the SDX-1239 into your PC yet. The USB Drivers for the SDX-1239 are the same as are used for the Mach 6 Joulemeter. The can be downloaded from the Gentec-eo website. https://www.gentec-eo.com/downloads These drivers are not certified by Microsoft. The will need to be installed with driver signing enforcement turned off.
  • Page 5 Then select Advanced options. Then Startup Settings. SDX-1239 Operating Instructions Rev - 3/21/2017 Page 5 of 22...
  • Page 6 Finally, you will be given a list of startup settings that you can change. The one we are looking for is “Disable driver signature enforcement”. To choose the setting, you will need to press the F7 key. SDX-1239 Operating Instructions Rev - 3/21/2017 Page 6 of 22...
  • Page 7: Power Source

    Plug the supply into the DC power jack located on the front panel. Probe Connection The SDX-1239 probes use a 7-pin locking connector. Plug in the probe by lining up the red reference dots and pushing the connector until it latches into its locked position. To remove the probe, power down the unit and pull on the outer sleeve.
  • Page 8: Indicator Led's

    This LED is only updated when the unit is armed and triggered. The SDX-1239 communicates with the host PC via a USB port. The device supports full speed USB 2.0. The host P.C must have the Mach 6 USB drivers installed. These drivers are on Gentec-eo website.
  • Page 9: Turning The Unit On

    Turning the Unit On Before turning the SDX-1239 on, be sure that the probe in use is plugged in. When the SDX-1239 powers up, it reads the probe memory to obtain required information for correct operation. SDX-1239 cannot detect a probe removal, so hot swapping the probe is not permitted.
  • Page 10 3. Control Mode. a. The AOM control voltage on BNC2 will be set by the SDX-1239 based on the error of the measured mean energy and the target energy. b. The target energy will be read from BNC1.
  • Page 11: Sdx-1239 Pulse Width Correction

    SDX-1239 AOM Control in Control Mode If the SDX-1239 is in control mode, it must adjust the AOM voltage so that the mean error stays as close to 0 % as possible. Changing the AOM Voltage to a new voltage will let more or less radiation through the AOM.
  • Page 12: Sdx-1239 Commands

    ((adjusted value >= 0.000) AND (adjusted value <= 1.000)) aom voltage = adjusted value; The default value is 5mV/% Error. The SDX-1239 always powers on with the default value. SDX-1239 Commands All commands and replies are followed by a carriage return (0x0D) and a line feed (0x0A).
  • Page 13 Sets or Queries the instrument range Example. Send rng7CRLF sets the range to index 7, the 20µJ range. See table below for ranges versus indices SDX-1239 Operating Instructions Rev - 3/21/2017 Page 13 of 22...
  • Page 14 Reply 17CRLF Query only. Returns the minimum range index for the head in use. Example Send minCRLF Reply 12CRLF Query only. Returns the maximum reading for the head in use. SDX-1239 Operating Instructions Rev - 3/21/2017 Page 14 of 22...
  • Page 15 Requests trigger state. Query only, returns 1 if the instrument is triggered, 0 if it is not. Example. Send: trqCRLF Reply: 1CRLF SDX-1239 Operating Instructions Rev - 3/21/2017 Page 15 of 22...
  • Page 16 Sets the AOM control voltage in Measure and Monitor Modes. Example. Send AOM0.55CRLF Reply: OK Send AOM Reply 0.55CRLF Sets the AOM control voltage update rate in Hz. The range is 10Hz to 10kHz. SDX-1239 Operating Instructions Rev - 3/21/2017 Page 16 of 22...
  • Page 17 The range is 0mV/% Error to 100mV/% Error. This is the proportional gain coefficient for the AOM control. The SDX-1239 measures the Mean Energy Error % and uses this gain to compute the new AOM Voltage based on the error. Setting the gain to 0 will disable AOM corrections.
  • Page 18: Reading Sdx-1239 Data

    Read the sensor responsivity in V/J. Query only. Example. Send: prvCRLF Reply: 12345.00CRLF Reading SDX-1239 Data In Measure Mode, the SDX-1239 Sends data at 100ms intervals. The data is sent in the format: Pulse Data, Pulse Period CRLF Pulse Data FRDDD F is the error code.
  • Page 19 The pulse data is 0x269, or 617 counts. The energy will be 617 / 3072 x 200µJ = 40.17µJ The period is 0x000009F3, or 2547 counts. 39417 / 135E6 = 18.868us, or 53,000 Hz In Monitor and Control Mode, the SDX-1239 Sends data at 100ms intervals. The data is sent in ASCII format:...
  • Page 20: Reading Sdx-1239 Pulse Memory

    Reading SDX-1239 Pulse Memory Data Format used by SDX-1239. Data is sent in hexadecimal strings FRDDDPPPPPPPPEECRLF F is the error code. R is the range index. DDD are the pulse data counts with 3072 being full scale. PPPPPPPP are the pulse period data.
  • Page 21 Range Indices Table. Scale Index 20pJ 200pJ 20nJ 200nJ 20uJ 200uJ 20mJ 200mJ 200J SDX-1239 Operating Instructions Rev - 3/21/2017 Page 21 of 22...
  • Page 22 Target Input Resolution 12-bit ADC Target Input Accuracy ±1% Target Input Bandwidth 1kHz Target Input Impedance 10kΩ ARM Control TTL, Optically Isolated Wavelength Compensation Range Probe Dependent, User can disable SDX-1239 Operating Instructions Rev - 3/21/2017 Page 22 of 22...

Table of Contents