CWP Accurate PPM 3.5 User manual

Operating Instructions for the Accurate PPM 3.5 meter
Specification: Accurate PPM 3.5 meter
Range: EC converted to 1 ~ 1999 PPM
Resolution: 1 PPM
Accuracy: ±2% Full Scale
Cali ration: Factory / User Cali rated - 1382 PPM
Temp: 0~122 Fahrenheit (Temp. Compensation: Automatic)
Battery: DC 4 x 1.5v (Two (2) LR44 AND Two (2) GP189 or equivalent)
Waterproof to 1 meter for short periods of time.
Electrode not remova le. Do not attempt.
Replacement or Repair Warranty: 12 months for defective parts and materials from date of manufacture. Proof
of purchase required. Warranty does not cover a use.
Operating Manual for the Accurate PPM 3.5 Meter
1. Remove the protective electrode cap and switch the meter to the ON position.
2. If you are using this meter for the first time or the meter has not een used for a long time you will need to
cali rate it for accurate readings. Skip to the cali ration section then return to step 3.
3. Dip the meters electrode into a small sample of the solution to e tested. Stir gently, stop and wait for the
displayed value to sta ilize. The readout num er is the PPM (parts per million) value of the solution. Some
environmental conditions such as electro magnetic fields from lighting, computers, transformers or other
electronic devices may cause the readout to ounce ack and forth displaying 2 or more PPM readings. This is
accepta le and an average etween the PPM readings should e taken. Example: A reading that ounces
etween 700 PPM and 710 PPM should e interpreted as 705 PPM. Note: Never dip the meter into a large body
of solution as you may drop it in and ruin the meter. Test small samples only. See pictures.
4. Immediately after finishing your test, dip or rinse the electrode in distilled water. Stir gently. Then use tissue paper
to lot the excess water from the meter’s ody and the electrode’s two metal pins. Replace cap. Note: As with all
quality PPM meters, do not allow the solution that you are testing to dry on the electrode s metal pins. Also,
blotting action must be carefully done in order not to damage the metal pins.
5. When storing the PPM meter, switch the unit to the OFF position. Put the electrode protector onto the PPM meter
and store it in a cool place out of direct sunlight and moisture. For extended storage time, take the atteries out of
the meter. Do not store with the meter’s electrode su merged in water or solutions.
6. If the unit cannot e switched ON or the display fades replace all of the atteries with new atteries. Use only
one brand of batteries. Never mix battery brands.
© 2008 CWP Instruments 1.888.433.6867 www.cwpmeters.com

Calibration of the Accurate PPM 3.5 Meter
If you are having trou le cali rating the meter or you are seeing incorrect readings, the atteries most likely need
to e replaced. Check attery quantity and model num er under specifications. This PPM meter has a 1-point
cali ration system for superior accuracy and is cali rated to 1382 PPM. The Cali ration Screw is the cap. Turn the
cap counterclockwise for removal. Using the supplied screwdriver, turn the screw to cali rate. Battery compartment
removal is not necessary for cali ration. Control Wizard Products recommends their rand of 1382-PPM cali ration
solutions, as it is a high quality product.
1. Remove the electrode protector, turn the meter ON and place it into clean distilled water. Gently stir and then
remove the meter from the water and lot the excess from the meter’s ody and electrode with a tissue.
2. Dip the meter’s electrode into a 1382 PPM cali ration uffer solution. If the display does not show 1382 PPM,
adjust the cali ration screw under the cap to make it display 1382 PPM. Cali ration is complete. Rinse the
electrode with distilled water and lot the meter with a tissue efore making your test. Cap must e screwed ON
securely for the meter to e to e waterproof.
Battery replacement: Make sure that the cap is screwed on tight after replacing atteries/cali rating or the meter will
not e waterproof.
Troubleshooting
If you are having trou le cali rating the meter or you are seeing incorrect readings, the atteries most likely
need to e replaced. Check attery quantity and model num er under specifications.
© 2008 CWP Instruments 1.888.433.6867 www.cwpmeters.com