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Summary of Contents for NHR 9400 Series
- Page 1 NHR 9400 Series Maintenance User Manual Part No. 09-0358 REVISION A September 13, 2021...
- Page 2 Document History Rev A ECO 18111 09/13/2021 B.N. Proprietary Rights Notice This document and the information that it contains are the property of NH Research, Incorporated. The rights to duplicate or otherwise copy this document, the rights to disclose the document and its information to others, and the right to use the information therein may be acquired only by written permission signed by a duly authorized officer of NH Research, Incorporated.
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Page 3: Table Of Contents
IP Address & Port Numbers ........................9 NHR PC-Based Tools ..........................11 SCPI Test Panel ............................ 11 CAL300 OPERATIONAL LIMITS / WARNINGS................... 11 NHR 9400 Series Calibration ........................12 Pre-Requisites ............................. 12 NHR 9400 Calibration Procedure ......................15 ......................25 IAGNOSTICS Overview .............................. -
Page 5: Safety
Maintenance Manual NHR 9400 Series Safety WARNING: LIVE CIRCUITS NO INTERNAL ADJUSTMENT OR COMPONENT REPLACEMENT IS ALLOWED BY NON-NH RESEARCH QUALIFIED PERSONNEL. COMPLETE THE FOLLOWING BEFORE ACCESSING THE INSTRUMENT INTERNALS: • REMOVE ALL EXTERNAL VOLTAGE SOURCES • DISCONNECT POWER CORD •... -
Page 6: Overview
NHR 9400 Series Maintenance Manual Overview System Overview This manual applies to the NHR 9400 series provided by NH Research. It will provide maintenance instructions for installing and calibrating the device, and running through the diagnostic software for troubleshooting. Symbols Used Warnings, cautions, &... -
Page 7: General Safety Notices
Maintenance Manual NHR 9400 Series General Safety Notices The following are general notices which should be observed by the operator. Potential for Mortal Hazard: Internal access should be avoided – No serviceable parts All connections should be carried out under 0V conditions ... - Page 8 NHR 9400 Series Maintenance Manual This page intentionally left blank.
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Page 9: Calibration
It also includes load resistors to allow calibration of very low current (energy star) measurements. In addition, the CAL300 can provide a +/- 2.7V reference for calibrating the NHR CAL series AC/DC power modules. An optional external resistor box can be used for power loading. - Page 10 NHR 9400 Series Maintenance Manual...
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Page 11: Nhr Pc-Based Tools
Contact NH Research Customer Support for a copy of this software if required. SCPI Test Panel NHR Supplies a SCPI test panel which may also be accessed through the start menu. Windows 7: StartAll ProgramsNH ResearchCAL SeriesSCPI Test Panel Windows 10: StartNH ResearchSCPI Test Panel... -
Page 12: Nhr 9400 Series Calibration
4. The NHR CAL300 Calibrator 5. The NHR CAL300 cable set appropriate to your model 9400 6. If your 9400 is a single channel model (4kW), you will also need the NHR CAL300 Load Refer to Figures 1-3 for desired 9400 calibration hook-up. - Page 13 Maintenance Manual NHR 9400 Series Figure 2 – Multi-Channel 9400 Calibration Hook-Up...
- Page 14 NHR 9400 Series Maintenance Manual Figure 3 –9400 24kW – 96kW Calibration Hook Up...
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Page 15: Nhr 9400 Calibration Procedure
NHR 9400 Series NHR 9400 Calibration Procedure Launch “NHR 9400 Calibration” which is installed as part of the NHR 9400 Software Package. The shortcut is found at: Start Menu / All Apps / NH Research / NHR 9400 Calibration. The software is a series of pages which guide you through the calibration 1. - Page 16 3. Configure Equipment page: a. Select the calibration equipment i. Fully hands-off calibration can only be completed if using the NHR CAL300 or the NHR 9400 Calibrator. ii. Manual calibration is possible by choosing “User Fixturing”. However, this is a very time consuming and tedious method.
- Page 17 Maintenance Manual NHR 9400 Series 3. Connect the NHR CAL300 Calibrator page: a. The CAL300 is a LAN SCPI device that needs to be connected to the PC running the calibration software (see section “Communications” for more information). b. Enter the appropriate resource id string and press “Connect”...
- Page 18 NHR 9400 Series Maintenance Manual 4. Configure the 9400 page: e. IMPORTANT: The 9400 MUST be powered up in calibration mode. i. Start with the unit off ii. Set option switch 2 on the back of the 9400 ON (to the left).
- Page 19 Maintenance Manual NHR 9400 Series 5. Prepare for Calibration page: g. Select Action i. Prepare a New Auxiliary -- This is a quick method to add an auxiliary to an existing system without requiring any external calibration equipment. It is used to update the calibration factors in the master for a newly added auxiliary.
- Page 20 NHR 9400 Series Maintenance Manual...
- Page 21 Maintenance Manual NHR 9400 Series 6. Execution – This screen will display the current activity and the log of all steps performed. After the calibration is complete, the report can be saved to an .RTF file by selecting the “Save to File”...
- Page 22 NHR 9400 Series Maintenance Manual 7. Finished page: a. This page displays all of the calibration factors in the 9400. It will show the previous calibration factors and the new calibration factors. b. Where there is a difference between the previous (“Was”) and the new (“Is”) the new will be highlighted in some color.
- Page 23 Maintenance Manual NHR 9400 Series 8. Power off the 9400 9. Power off the CAL300 10. Disconnect all calibration equipment 11. Turn 9400 option switch 2 to OFF 12. The unit is now ready for use.
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Page 25: Diagnostics
Diagnostics Overview The NHR 9400 Diagnostics tool is a simple tool to allow users to quickly identify potential problem areas within the system. The software will run through a series of tests and return feedback based on the results. The feedback will recommend cables, wiring, and fuses to check and inform the user of possible bad circuit boards. - Page 26 IMPORTANT: The 9400 MUST be powered up to run the diagnostic tool. i. Start with the unit off. ii. Refer to the “Turn On Checklist” in the 9400 series user’s manual. iii. Disconnect output connections from all channels. iv. Change OPTION switch 2 of 9400 to ON.
- Page 27 If the values are incorrect, enter the correct values in the following window. For the Current Feedback test, a load is necessary. You will need to the CAL300 Load and NHR 9400 Test Fixture. Click “OK” if you would like to proceed. If not, click “No” to skip.
- Page 28 NHR 9400 Series Maintenance Manual k. Connect the CAL300 Load and NHR 9400 Test Fixture as shown in Figure 3 or Figure 4. Click “OK” when done.
- Page 29 Maintenance Manual NHR 9400 Series Figure 3 – 9400 Diagnostics (4kW to 12kW) Current Feedback Test Hook Up...
- Page 30 NHR 9400 Series Maintenance Manual Figure 4 – 9400 Diagnostics (24kW to 96kW) Current Feedback Test Hook Up...
- Page 31 Maintenance Manual NHR 9400 Series Failures will appear in RED. Feedback will appear in YELLOW. The feedback will recommend certain cable connections and parts to check and potential bad boards. m. If “Verbose” was selected, additional information will be displayed in GRAY.
- Page 32 NHR 9400 Series Maintenance Manual o. OPTIONAL: “Copy to Clipboard” can be used to save a log of the diagnostics run. Paste the log into a text editor and save the file if needed. p. From this point, you can start a new test by clicking “Begin” or you can close out of the program by clicking the “X”...
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