Symptom

Solution

I don’t see a signal.

Ensure coefficients and interface parameters have been entered correctly.

Check to see if unit has power (green LED is on).

Inspect fiber optic cable to make sure it is not broken.

I get the error message “USB device not present” and/or “Scan Timeout.”

Check to see if unit has power.

Check to see if the cables are listed in the Windows Device Manager under USBDEV.

Check to see if USB2EPP cable is firmly inserted in back of unit and USB port of computer.

Close SpectraWiz and perform a reboot of USB driver using the following steps:    1) Unplug power cord from unit.  2) Unplug USB2EPP cable from unit.  3) Unplug USB2EPP cable from computer.  4) Plug USB2EPP cable into unit.  5) Plug power supply into unit.  6)  Plug USB2EPP cable into computer.

The software locks up.

Check to see if multiple channels are configured: Under Set-up è Unit Calibration Coefficients.  Enter 2 for 2^nd channel and press 0 for the first coefficient.

Under Set-up è Interface port and detector, disable channels 2 and above by making sure no other detector type is checked.

The green LED on my spectrometer is not on.

Check to see if sufficient power is supplied to unit
(+5V DC).

Make sure no other voltage has been applied to unit (such as the +12V DC for light sources).

I get the following error: “I/O 32.”

Delete the swref1 and swdark files from the SpectraWiz directory.

My unit is not displaying the correct wavelength range.

Ensure coefficients and interface parameters have been entered correctly.

Make sure spectrometer is not running off of computer power (via USB cable).

Turn zoom off by left-clicking to the left of the y-axis.

Uncheck the Multiplexer option: Set-up è Spectrometer channels è Fiber Optic Multiplexer.

I get a “Range Error” when in Irradiance mode.

Back away the unit from the light source (if possible).

Install a calibrated aperture.

Decrease the integration time.

My measurements don’t look right (using the R400 reflectance probe).

Insert the end of the y-fiber with 6 fibers bundled into the light source.  Insert the other end into the spectrometer (to get the most amount of light onto the sample).

Block any overhead lights from the probe

Make sure the reference is not oversaturated.

I get the following error “Reference Oversaturated at xxx nm.”

Decrease the integration time

Back the light source away from the unit (if possible).

I’m having difficulty with my port settings.

We no longer support devices using parallel ports.  Purchase our USB2EPP cable to run the spectrometer from USB-1 or USB-2 ports.

Is my Spectrometer calibrated for Irradiance measurements?

A 3.5” floppy disk is sent with all calibrated units.  Check the computer for a file called MyCal (with your unit’s serial number in the file name).

I get the error message “No WAV device found.”

In the SpectraWiz directory () double-click the file: NOSOUND.bat.

Delete the following files:

swdo.wax and swds.wax

Contact support@StellarNet.us with your unit’s serial number.