IS-HF-M100+-29293 Rev 4
11
Troubleshooting
M100+ Fault Detection
The M100+ performs continuous diagnostic monitoring. The diagnostic
indicator will display any errors or warnings on the Home screen.
• A green indicator shows that everything is good.
• A red indicator denotes an error.
- Potential errors are a bad lamp or the reading is taking place
in a band that has not been calibrated.
• A yellow indicator is a warning and could show either a faulty
database or the device plugged into the USB is incompatible.
Diagnostic Table
Symptom
Cause
Solution
Readings are higher than
expected.
Bubbles in solution.
Clean the inside and outside
of the cuvette with a detergent
solution. Rinse with deionized
water. Do not shake samples.
Instrument out of
calibration.
Recalibrate. Refer to Calibration
section in this manual.
USB download not working.
USB memory stick is not
fully inserted.
Insert memory stick fully.
USB Memory stick is not
formatted.
Format memory stick to FAT32.
Readings are erratic.
Bubbles in solution.
Clean the inside and outside
of the cuvette with a detergent
solution. Rinse with deionized
water. Do not shake samples.
Readings are lower than
expected.
Instrument out of
calibration.
Recalibrate. Refer to Calibration
section in this manual.
Screen calibration not
working.
Incorrect screen
calibration stored.
Hold upper (time) banner on any
screen for 5 seconds to load
the default screen calibration.
Then go to screen calibration
and follow instructions in Touch
Screen Calibration section in this
manual.
Technical and Customer Assistance
If you need assistance with this instrument or to order replacement
parts, please contact HF scientific Customer Service or Technical
Service Departments.
HF scientific
16260 Airport Park Drive, Suite 140
Fort Myers, Florida 33913
Phone: (239) 337-2116
Toll Free: (888) 203-7248
Fax: (239) 454-0694
Email: [email protected]
www.hfscientific.com
Routine Maintenance
Routine maintenance should include calibration of the instrument. See
Calibration section in this manual for more information.
Cleaning the Cuvette
Measurement cuvettes used for the sample should be clean and free of
marks or scratches.
Clean the interior and exterior of the cuvettes with a detergent solution
and then rinse several times with distilled or deionized water. Ensure
the cuvettes are clean prior to use.
If cuvettes become scratched or stained, they should be replaced.
Replacement cuvettes are available from HF scientific. Order catalog
#50051 (3 pack of cuvettes with caps) or 50052 (10 pack of cuvettes
with caps).
Replacing the Source Lamp
The infrared and white light source lamps in the M100+ instruments
are designed for long life. However, these lamps are not covered by
the warranty. If the lamp should need replacement, please contact HF
scientific's Service Department for assistance. The lamps can also be
purchased with instructions to change. Calibration will be required if a
lamp change is made.
Battery
This instrument uses a battery for backup of the clock feature with an
expected life span of over 3 years. The battery is non-rechargeable
and no attempt to charge it should be made. If the battery needs to be
replaced, contact HF scientific to arrange for service.
Accessories and Replacement Parts
Catalog #
Description
Photo
24082S
Replacement Lamp Assembly, White Light w/
Instructions
21396S
Replacement Lamp Assembly, IR Light w/
Instructions
29293
Operating Manual, M100+
n/a
39957
ProCal Calibration Kit, 0.02, 10 & 1000 NTU
39940
ProCal Calibration Kit, 0.02, 10, 1000, High
Range A & High Range B
39825
ProCal Calibration Standard, 10 NTU, 125ml
50040
Formazin Stock Kit
n/a
70914
Formazin Stock Solution, 4000 NTU, 500 ml
50051
Replacement Cuvette - 3 Pack
50052
Replacement Cuvette - 10 Pack
29297S
US Wall Mount Power Supply
N/A
29301S
EU Wall Mount Power Supply
N/A
