13
The following are some common messages that may be displayed, including error messages. If an
error message other than those listed below is displayed, please contact Omega technical support in
the USA at (800) 872-9436.
HHWT-11 Meter Messages
LCD Message
HI
LO
LO
ER
Description
In READ mode: test sample concentration is above
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In READ mode: test sample concentration is below
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In ZERO mode: sample absorbance (due to a
cloudy or colored sample or a dirty cell) is too high
to zero, the meter will read “LO”.
Excessive stray light detected. Normally this
does not occur, even when testing in sunlight.
Low battery indication.
Corrective Action
Dilute and retest. Dilution Kit available
(HHWT-487200).
Sample value is below measurement
range.
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these options should remedy the problem.
Place the LIGHT BLOCKING CAP over the CELL
for zeroing and for reading result. Moving
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Replace the batteries.
1. Unscrew the O-ring sealed battery cover counter-clockwise. Use proper sized pliers if necessary.
Do not disturb the sealing O-ring. Batteries are not included.
2. Remove the used batteries and install 4 new AAA batteries following the diagram for
correct polarity (see diagram). We recommend high quality AAA alkaline batteries be used.
4. Replace the battery cover. Be sure to tighten the cover securely. Do not over tighten. This is
necessary for meter to be waterproof.
5. Dispose of the used batteries in accordance with your
local regulations.
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The meter is now ready for operation.
7. Meter will not work if battery orientation is incorrect.
To Install/Replace “AAA” Batteries:
TOP VIEW
HHWT-11 Reagent Reorder Information
N/A
0 - 14 ppm
0 - 12 ppm
0 - 11 ppm
0 - 11 ppm
0 - 11 ppm
0 - 300 ppm
0 - 3 ppm
0 - 9 ppm
2 - 300 ppm
5.5 - 8.8 ppm
N/A
PARAMETER
No.
PART NO.
# OF TESTS DETECTION RANGE
CHEMISTRY
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Reference Standard
Bromine (DPD-1)
Chlorine Dioxide (DPD-1)
Free Chlorine (DPD-1)
Total Chlorine (DPD-3)
Total Chlorine (DPD-4)
High Range Chlorine
Hydrogen Peroxide LR
Ozone (DPD-4)
Peracetic Acid (PAA)
pH
Glycine (used for Chlorine Dioxide)
1
2
3
4
5
6
7
8
9
10
11
HHWT-486602
HHWT-486636
HHWT-486633
HHWT-486637
HHWT-486638
HHWT-486670
HHWT-486672
HHWT-486616
HHWT-486634
HHWT-486675
HHWT-486639
HHWT-484014
10
100
100
100
100
100
50
50
100
100
100
50
N/A
DPD
DPD
DPD
DPD
DPD + KI
KI + Buffer
DPD + PO
4
+ MoO
4
+ Kl
DPD + Kl
KI
Phenol Red
Glycine
NOTE: Because most of our products are test strips or use reagents that have little or no hazard in the quantity sold, MSDS sheets are not supplied with the test kit.
To ensure optimal performance, store your meter kit in a cool, dry place away from excess heat (below
90°F / 32°C), moisture, and oxidizers such as Chlorine and Bromine.
