To Set Zero
1. Press the ON/OFF key.
2. The display will show “det”.
3. Insert the ZERO test tube (supplied in detergents test kit) filled with distilled or
deionized water into the sample cell compartment (with mild downward
pressure), making sure that it is fully seated.
4. Place the light shield over the ZERO test tube.
5. Press the Zero/Test key. The “det” symbol will flash for approximately 8
seconds, then the display will show “0.0.0”.
To Make a Measurement
1. Follow the Test Procedure in the Instrumental Detergents Test (Cat. # R-9423).
2. Insert the resulting Detergents test tube into the sample cell compartment (with
mild downward pressure), making sure that it is fully seated.
3. Place the light shield over the test tube.
4. Press the Zero/Test key. The “det” symbol will flash for approximately 3
seconds, then the sample test result will appear in the display as ppm
(mg/Liter).
Operating Tips
• Upon startup, the photometer automatically proceeds to the zeroing process.
Every time the photometer powers on, it must be re-zeroed.
• To re-zero the photometer, it must be turned off and back on again.
• The test tube contains chloroform which will easily destroy the photometer
sample chamber. Use care to ensure that there is no chloroform residual on the
exterior of the test tube before placing it in the photometer. Also use care not to
spill the contents of the test tube into the photometer.
• A series of readings can be taken without re-zeroing, as long as the photometer
stays on during the series.
• Protect photometer from extreme humidity, corrosive fumes and dusty areas.
Store in a cool, dry place.
• Remove the batteries when photometer is not in use.
• Press the !key to turn the display back light on or off.
• When moving the photometer from one temperature extreme to another, wait at
least 10 minutes before use to allow photometer to come to temperature
equilibrium.
• Contamination of the optics in the sample chamber will result in incorrect
measurements. The windows in the sample chamber should be checked at
regular intervals and cleaned as necessary. Use a soft moist cloth or cotton
swab for cleaning purposes.
• If the sample cell adapter has been removed, it must be replaced with proper
orientation, aligning the triangle on the adapter with the triangle on the
photometer.
Displays and Troubleshooting
E01: Light absorption too great (dirty optics)
E020 or E021: Too much light reaching detector
E022 or Battery Icon: Battery should be replaced
E027, E028 or E029 : Instrument zeroed incorrectly, misaligned adapter, vial
not fully seated, dirty optics or failing light source.
Hi or E03: Measuring range exceeded or excessive turbidity
Lo: Test result has a negative value (less than 0 ppm) or vial not fully seated.
Battery Installation
To ensure that the instrument is waterproof:
• seal ring (A) must be in position
• battery compartment cover (B) must be fixed with the four screws
Specifications
Auto Shutoff: After 15 minutes of non-use
Optics: 660 nm LED/interference filter and photosensor in transparent sample
chamber
Operating Temp.: 5 to 40°C (41 to 104°F)
Battery: 4 AAA batteries (approx. 5,000 tests or 17 hours)
Waterproof: Floating, IP68 (1 hour at 0.1 meter)
Wavelength Accuracy: ± 1 nm
Photometric Accuracy: 3% full scale (T = 20 - 25° C / 68 - 77° F)
Photometric Resolution: 0.01 A
Ambient Conditions: Temperature 5 - 40° C / 41 - 104° F
Rel. humidity 30 - 90 % (non-condensing)
CE: Certificate of Declaration of CE-Conformity available upon request.
Instrument
Back
Batteries
Notch
Screws
Seal Ring (A)
Battery
Compartment
Cover (B)