Spesifikasi HI95711
PH Meter
Clarkson HI95711
Free and Total Chlorine Photometer 0-5 ppm with 525 nm filter and Cal Check
Hanna Instruments HI 95711
Description:
Total Chlorine is given by the sum of free chlorine plus combined chlorine: free chlorine combines
with nitrogen to produce chloramines (combined chlorine). Chloramines is harmful for aquatic life and
damages water treatment plants that use membranes for water purification (i.e. reverse osmosis).
Therefore it is important to monitor the level of free and/or total chlorine often.
The chloramines concentration in water depends on pH, temperature, the initial ratio of chlorine
versus amine, chlorine demand and the time of reaction. Both forms of chlorine (free and combined)
can exist at the same time, though they need to be measured separately.
• HI 95711: wide range for free and total chlorine.
• HI 95761: trace total chlorine for ion-exchange membranes and resins.
• HI 95724: the same specifications of HI 95711 but uses liquid reagents.
Finally, instrument validation is possible at any time with Cal Check standard cuvets.
Specifications:
|
Range |
Free Chlorine |
0.00 to 5.00 mg/L |
|
Range |
Total Chlorine |
0.00 to 5.00 mg/L |
|
Resolution |
|
0.01 mg/L |
|
Accuracy |
|
±0.02 mg/L to 1.00 mg/L |
|
Light Source |
|
Tungsten lamp with narrow band interface filter 525 nm |
|
Light Detection |
|
Silicon Photocell |
|
Power Supply |
|
1 x 9V battery |
|
Auto Shut-off |
|
After 10 minutes of non-use in measurement mode |
|
Environment |
|
0 to 50°C (32 to 122°F); RH max 95% non-condensing |
|
Dimensions |
|
180 x 83 x 46 mm (7.1 x 3.3 x 1.8") |
|
Weight |
|
290 g (10 oz.) |
|
Method |
|
Standard Methods 4500-Cl G |