|
HI96735
|
|
|
Hardness,
EPA Portable Photometer
|
|
|
|
|
|
· CAL
CHECK™
|
|
|
· User
calibration
|
|
|
· Certified
calibration and verification standards
|
|
|
· BEPS
(Battery Error Prevention System)
|
|
|
· TIMER
function
|
|
|
· Auto
shut-off
|
|
|
· GLP
Features
|
|
|
|
|
|
Total hardness, that is the presence of magnesium and calcium,
is due mainly to the runoff
|
|
|
water dissolving these salts as it
flows or filters through different strata. Hardness can also cause
|
|
|
scaling of pipes in cooling and heating
systems.
|
|
|
|
|
|
The
HI 93735 measures the total hardness in drinking, surface and wastewater.
|
|
|
|
|
|
This meter uses an exclusive positive-locking system to ensure
that the cuvette is in the same position
|
|
|
every time it is placed into the
measurement cell. It is designed to fit cuvettes with a larger neck
|
|
|
making it easier to add both sample and
reagents. The cuvettes are made from special optical
|
|
|
glass to obtain best results.
|
|
|
|
|
|
SPECIFICATIONS
|
HI 96735
Hardness, Total
|
|
Hardness LR (P1)
|
Hardness MR (P2)
|
Hardness HR (P3)
|
|
Range
|
0 to 250 mg/L (ppm)
|
200 to 500 mg/L (ppm)
|
400 to 750 mg/L (ppm)
|
|
Resolution
|
1 mg/L from 0 to 100 mg/L,
5 mg/L from 100 to 750 mg/L
|
5 mg/L
|
5 mg/L
|
|
Accuracy
@25๐C (77๐F)
|
+/-5 mg/L +/-4% of reading
|
+/-7 mg/L+/-3% of reading
|
+/-10 mg/L +/-2% of reading
|
|
Light
Source
|
Light emitting diode
|
|
Light
Detector
|
Silicon photocell with narrow band
interference filter @466
|
|
Power
Supply
|
9V battery
|
|
Auto-off
|
After ten minutes of non-use in
measurement mode; after one hour
of non-use in calibration mode;
with last reading reminder
|
|
Environment
|
0 to 50๐C (32 to
122๐F); RH max
95% non-condensing
|
|
Dimensions
|
192 x 104 x 69 mm (7.6 x 4.1 x 2.7)
|
|
Weight
|
360 g (12.7 oz.)
|
|
Method
|
Adaptation of the EPA recommended
method 130.1
|
|
|
|
|
|
