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Amphenol ENDEVCO 6634D Instruction Manual

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Model 6634D Signal Conditioner
IM6634D
Instruction Manual
78484 Rev NR
ECO 54847
IM6634D
1
6/17/2024

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Summary of Contents for Amphenol ENDEVCO 6634D

  • Page 1 Model 6634D Signal Conditioner IM6634D Instruction Manual 78484 Rev NR ECO 54847 IM6634D 6/17/2024...

  • Page 2: Table Of Contents

    1.0 Table of Contents Table of Contents ................................. 2 Product Description ................................4 Theory of Operation ................................6 User Interface ..................................8 Front Panel ....................................8 Rear Panel ....................................9 Rear Panel Outputs Connector ............................... 10 Front Panel ..................................11 Input Type Menu ..................................
  • Page 3 Factory Restore Menu ................................25 Web Interface ..................................26 Output Display ..................................27 Input Tab ....................................27 Filters Tab ....................................29 Integrators Tab ..................................30 Output Tab ....................................31 Remote Tab .................................... 32 Settings Web Page .................................. 33 Safety and Compliance ..............................34 Safety Considerations ................................

  • Page 4: Product Description

    2.0 Product Description The ENDEVCO Model 6634D Vibration Amplifier is a signal conditioning instrument designed to condition and display accelerometer signals in vibration testing of rotating machines. The 6634D Vibration Amplifier is a single channel instrument which operates from one of the following input sources: •...
  • Page 5 • AC and DC programmable outputs • PE, Differential PE, IEPE and VEL COIL/RCC inputs • Programmable input filtering: high-pass, low-pass, band-pass • Wide sensor sensitivity input range • -3dB Bandwidth up to 90 kHz • SCPI remote control API •...

  • Page 6: Theory Of Operation

    3.0 Theory of Operation The ENDEVCO Model 6634D Vibration Amplifier is a single-channel signal conditioner and display instrument. It provides a wide range of modes and settings, selected by the operator from the front panel, or from a controller/computer via a RS-232 bus or Ethernet connection.
  • Page 7 Alarm if the output exceeds 100% of full scale, or if the input to the A/D converter exceeds the saturation level for more than 3 seconds. 78484 Rev NR ECO 54847 IM6634D 6/17/2024...

  • Page 8: User Interface

    4.0 User Interface Front Panel The 6634D front panel provides user control to modify instrument settings. See Figure 1: Front panel. On/Off Switch ENT (Enter) Button Up, down, left, right navigation arrows LCD Screen LED Status Indicators Figure 1: Front panel In addition to controls, there are three fault indicators (red LEDs) located on the front panel.

  • Page 9: Rear Panel

    Rear Panel Inputs: • SE/PE: Single-Ended Piezoelectric Accelerometers (BNC) • DIFF/PE: Differential Piezoelectric Accelerometers (Twinax BNC) • EX CAL: External Calibration Source (BNC) • VEL/RCC: Velocity Coil or Remote Charge Converter (Twinax BNC) • EXT PWR: 12VDC Power Input (Barrel Jack) Outputs: •...

  • Page 10: Rear Panel Outputs Connector

    Figure 2: Rear panel Rear Panel Outputs Connector The rear panel output connector is a DB25F connector. The pin numbering is shown in Figure 3: Output connector pin numbering. The pin definitions are described in Table 1: Output pin definitions. Figure 3: Output connector pin numbering Name Direction...

  • Page 11: Front Panel

    5.0 Front Panel The 6634D is manually controlled from the front panel using the UP, DOWN, LEFT, RIGHT, and ENT push-buttons along with a two-row display of 16 characters per row. The screen on the 6634D will display the current function selection centered on the top row. The bottom row displays the current value of the function.
  • Page 12 Figure 6: AC FSO view mode Figure 7: AC FSO edit mode After power-up, the 6634D enters “Output”display mode. The front panel shows a bar graph that indicates the DC output as a percentage of Full Scale. See Figure 8: Output Screen. This can be used to get a visual impression of the DC output in real time, without the need for an outside DAQ.

  • Page 13: Input Type Menu

    Figure 10: Overload display Input Type Menu Selects the transducer input type. Options: Input Type Rear Panel Description Type Connector SE PE SE/PE Single-Ended (SE) Piezo-Electric (PE) Charge Diff PE DIFF/PE Differential Piezo-Electric (PE) Charge IEPE/RCC VEL COIL Integrated Electronics Piezo-Electric (IEPE) / Remote Charge Converter (RCC) Volts DRCC Accel VEL COIL...

  • Page 14: Ext Filter Menu

    Using the following abbeviations: Abbreviation Description Picocoulombs Millivolt Meter Millimeter Second Inches per second Gravitational constant N.B. Each “Input Type” has its own “Sensor Sensitivity” setting. Ext Filter Menu Enables/disables the external filter. Options: Option Description No external filter in connected The transducer front-end circuitry drives BB-OUT (DB25 pin 2).

  • Page 15: Hpf Menu

    The High Pass Filter is enabled Bandpass Both the Low Pass and High Pass filters are enabled HPF Menu Sets the High Pass Filter cutoff frequency. The High Pass Filter range is 5 Hz to 500 Hz. LPF Menu Sets the Low Pass Filter cutoff frequency. The Low Pass Filter range is 50 Hz to 10 KHz.

  • Page 16: Veloc Input (To Displacement Integrator) Menu

    Veloc Input (to Displacement Integrator) Menu Selects the velocity input to the displacement integrator. Options: Option Description Internal The Velocity Integrator output is routed into the Displacement Integrator DB25 pin 9 V-IN (DB25 pin 9) is routed into the Displacement Integrator AC Output Menu Selects the AC Output “AC-OUT”...

  • Page 17: Ac Fso (Ac Full Scale Output) Menu

    AC FSO (AC Full Scale Output) Menu Selects the AC Full Scale Output (volts). Options: Option Description Sets the AC-OUT (DB25 pin 11) Full Scale Output (FSO) to ± 1 volt (by dividing the internal signal by 10) Sets the AC-OUT (DB25 pin 11) Full Scale Output (FSO) to ± 5 volts (by dividing the internal signal by 2) Sets the AC-OUT (DB25 pin 11) Full Scale Output (FSO) to ±...

  • Page 18: Dc Fso (Dc Full Scale Output) Menu

    DC FSO (DC Full Scale Output) Menu Selects the DC Full Scale Output (volts). Options: Option Description Sets the DC-OUT (DB25 pin 12) Full Scale Output (FSO) to ± 1 volt (by dividing the internal signal by 10) Sets the DC-OUT (DB25 pin 12) Full Scale Output (FSO) to ± 5 volts (by dividing the internal signal by 2) Sets the DC-OUT (DB25 pin 12) Full Scale Output (FSO) to ±...

  • Page 19: Excitation (Current) [Ma]

    Displacement Imperial 0.5 mils peak 50 mils peak Metric 20 µm peak 1000 µm peak N.B. Each “Input Type” / “DC Output” combination has its own “Full Scale Out” setting. Excitation (Current) [mA] Sets the excitation current for the IEPE/RCC device connected to the Sensor Input. The following screen is displayed if the Input Type is not “IEPE/RCC”: The options are available if the Input Type is “IEPE/RCC”: Options:...

  • Page 20: Warning Level Menu

    Options: Option Description No voltage excitation is provided 24 VDC Excitation voltage is provided on VEL COIL connector pin B Warning Level Menu Sets the Warning alarm trigger level. The Warning alarm is latched when the RMS Percent Full Scale exceeds this level. The range is 0% Full Scale to 100% Full Scale.

  • Page 21: Alarms Reset Menu

    Alarms Reset Menu Resets the Warning and Alert alarms. Warning and Alert alarms are latched and must be reset from the one of the following interfaces. • Select “Reset” from this menu • Clicking the “Reset Alarms” button on the Settings web page •...

  • Page 22: Ip Address

    IP Address Sets the Ethernet IP address of the unit. Power must be cycled for changes to take effect. Options: • Range: 0.0.0.0 to 255.255.255.255 Netmask Sets the Ethernet netmask of the unit. Power must be cycled for changes to take effect. Options: •...

  • Page 23: Store Setup Menu

    Store Setup Menu Stores the current setup in non-volatile memory at the specified location. Options: 1 – 10. The following settings are stored in each Setup: • Sensitivity (for each Input Type) • AC Output (for each Input Type) • DC Output (for each Input Type) •...
  • Page 24 78484 Rev NR ECO 54847 IM6634D 6/17/2024...

  • Page 25: Factory Restore Menu

    Factory Restore Menu Restores all settings to the factory settings. Options: • Yes, No 78484 Rev NR ECO 54847 IM6634D 6/17/2024...

  • Page 26: Web Interface

    6.0 Web Interface The 6634D may be controlled via its web interface. The factory web server IP address is 192.168.1.100. The factory web page address is http://192.168.1.100/. The IP address may be viewed and changed using the front panel. For best performance, use the Google Chromium browser. The main web page is shown in Figure 11: Main web page.

  • Page 27: Output Display

    Output Display The output is displayed numerically in the selected units along with a bar graph showing percent full-scale. See example on Figure 12: Web page output display. Figure 12: Web page output display The message “Low Signal” is flashed when no signal is detected. See Figure 13: Web page Low Signal display. Figure 13: Web page Low Signal display The message “Overload”...
  • Page 28 Figure 16: Input Type options N.B. Changing this setting may affect the full scale output setting. Be sure to verify the full scale setting after changing this setting. The IEPE Current options are shown in Figure 17: IEPE Current options Figure 17: IEPE Current options The DRCC Voltage options are shown in Figure 18: DRCC Voltage options.

  • Page 29: Filters Tab

    Filters Tab The Filters tab is used to control the signal path filters. See Figure 19: Filters tab. The external filter may be enabled or bypassed. Any combination of programmable filters may be selected. Figure 19: Filters tab The External Filter options are shown in Figure 20: External Filter options Figure 20: External Filter options The Programmable Filters options are shown in Figure 21: Programmable Filters options.

  • Page 30: Integrators Tab

    Integrators Tab The Integrators tab shows the inputs to the velocity and displacement integrators. See Figure 22: Integrators tab. Figure 22: Integrators tab The Acceleration Input (to the Velocity Integrator) options are shown in Figure 23: Acceleration Input (to the Velocity Integrator) options.

  • Page 31: Output Tab

    Output Tab The Output tab controls the AC and DC output modes, as well as the full-scale outputs of the unit. See Figure 25: Output tab. Note that changing these settings will change the system gain. Figure 25: Output tab The AC Output options are shown in Figure 26: AC Output options.

  • Page 32: Remote Tab

    The DC Full Scale Output options are shown in Figure 28: DC Output options. Figure 29: DC Full Scale Output options Remote Tab The Remote tab displays the remote control configuration items. See Figure 30: Remote tab. The following remote control data items may be changed: the unit address, the Ethernet IP address, netmask and gateway, and the RS232 baud rate.

  • Page 33: Settings Web Page

    Settings Web Page Click on the gear icon to display the system settings page. See Figure 31: Settings page. The settings page shows the setup, units, alarm levels and allows the user to return the unit to its factory settings. Restoring the factory settings will change the IP address back to 192.168.1.100, which may cause the web page to become unresponsive.

  • Page 34: Safety And Compliance

    7.0 Safety and Compliance Safety Considerations This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the precautions required to avoid injury. While our equipment is designed with user safety in mind, the protection provided by the equipment may be impaired if equipment is used in a manner not specified by this manual.

  • Page 35: Ce Compliance

    CE Compliance For CE compliance, outputs must be filtered by a 1-pole, 120 kHz low-pass filter at the readout device. 78484 Rev NR ECO 54847 IM6634D 6/17/2024...

  • Page 36: Troubleshooting

    8.0 Troubleshooting This section assumes the unit has the factory settings. The factory settings may be restored using the front panel or the web pages. For illustration purposes, the IP address has been changed to 192.168.1.200. The sensor output should appear on the web pages and the front panel, both of which reflect the electrical signal on DC-OUT (DB25 pin 12).
  • Page 37 No signal on ACCEL-OUT (DB25 pin 1) Verify the following: • The External Filter is Out (or BB-OUT is tied to BB-IN) • The Programmable Filters are set to Bypass No signal on VEL-OUT (DB25 pin 3) Verify the following: •...

  • Page 38: Repairs

    No signal on DISP-OUT (DB25 pin 7) Verify the following: • The Velocity Input is set to Internal No signal on AC-OUT (DB25 pin 11) Verify the following: • The Full Scale Output matches the sensor’s FSO No signal on DC-OUT (DB25 pin 12) Contact support.

  • Page 39: Calibration

    10.0 Calibration The following self-calibration procedure allows the 6634D to correct for error in its signal path: Power up 6634D, allowing at least 15 minutes of warm-up time prior to initiating calibration. Connect a signal generator to a calibrated voltmeter, EX CAL input, and (optionally) VEL COIL input (pin A) simultaneously.

  • Page 40: Appendix A: Using High Temperature Charge-Mode Accelerometers

    Appendix A: Using high temperature charge-mode accelerometers The 6634D has a minimum source resistance of 10 MΩ, which is capable of supporting most accelerometers. When using accelerometers at high temperatures, the resistance of the sensing material drops below the minimum source (input) resistance of the 6634D.
  • Page 41 78484 Rev NR ECO 54847 IM6634D 6/17/2024...
  • Page 42 For each Setup: Data Item Value Input Type Single Ended PE Programmable Filters Bypassed 5 Hz 50 Hz For each Setup and Input Type: Data Item Value Sensitivity 150 pC/g Imperial (15 pC/m/s Metric) AC Output Mode Acceleration DC Output Mode For each Setup, Input Type and AC Output Mode: Data Item Value...

  • Page 43: Appendix C: 6634C/D Input Type Cross Reference

    Appendix C: 6634C/D Input Type Cross Reference Input Type Rear 6634C 6634C 6634D Web Page 6634C 6634D Remote Panel Jumpers Front Front Remote Remote ‘T?XXXX’ Panel Panel ‘T’ cmd ‘T’ cmd Single-Ended PE SEPE SE PE Single-Ended PE Differential PE DIFF DIFF Diff PE...
  • Page 44 Differential Velocity VEL COIL Diff Vel Differential Coil Coil Velocity Coil DRCC (e.g. 2777) VEL COIL IEPE DRCC DRCC Acceleration Output Accel Acceleration DRCC (e.g. 2777) VEL COIL DRCC DRCC Velocity Velocity Output Veloc 78484 Rev NR ECO 54847 IM6634D 6/17/2024...

  • Page 45: Appendix D: Usage Examples

    Appendix D: Usage Examples 6634D has re-defined output scaling for consistency and clarity. Below are some examples to demonstrate the new scaling scheme. Notable differences from 6634C: -AC and DC Full-Scale Output (FSO) are always 1/5/10 V. These do not change based on DC Output mode (rms, avg, peak). -All displacement outputs are now defined in peak rather than peak-peak.
  • Page 46 Input: 159.2 Hz, 100 mVpk sine wave into VEL COIL input (pin A). Pin B grounded. CALCULATED INPUT m/s = Vin (pk) / Sensor Sensitivity = 100 mVpk / (10 mV/m/s = 10 m/s Outputs: DISPLAY = 10 m/s AC OUT m/s = AC OUT Voltage (pk) / AC Full Scale Output * Full Scale Output = 5 Vpk / 10 V * 20 m/s = 10 m/s...
  • Page 47 78484 Rev NR ECO 54847 IM6634D 6/17/2024...
  • Page 48 Example 1B: Measure peak acceleration, velocity, and displacement using fixed outputs. Settings: Same as example 1A. Input: Same as example 1A. Note: Acceleration, velocity and displacement intersect at 159.2 Hz in Metric units. https://www.modalshop.com/rental/learn/vibration/why-shake-at-159-hz Outputs: ACCEL OUT m/s = ACCEL OUT Voltage (pk) / ACCEL OUT Fixed Sensitivity (pk) = 50 mVpk / (5 mVpk/m/s = 10 m/s VEL OUT mm/s = VEL OUT Voltage (pk) / VEL OUT Fixed Sensitivity (pk)
  • Page 49 Example 2: Measure 10 µm rms displacement via DISPLAY, DISP OUT, AC OUT, DC OUT. Settings: Same as example 1A, except for below settings: Input: 159.2 Hz, 100 mVrms sine wave into VEL COIL input (pin A). Pin B grounded. CALCULATED INPUT µm = Vin (rms) / Sensor Sensitivity = 100 mVrms / 10 mV/m/s = 10 m/s...
  • Page 50 = 10 µm rms AC OUT µm = AC OUT Voltage (rms) / AC Full Scale Output * Full Scale Output = 5 Vrms / 10 V * 20 µm = 10 µm rms Note: RMS units are derived from the AC OUT voltage measurement. DC OUT µm = DC OUT Voltage (DC) / DC Full Scale Output * Full Scale Output = 5 VDC / 10 V * 20 µm = 10 µm rms...

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