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Salinity of a solution is measured by measurements
of chlorinity, reflectivity or specific gravity.
Measurement of chlorinity : the volume of chlorine
in the seawater is measured by citrating the seawater
with silver chloride and then measure the total salinity
by converting it into the ratio to other element.
Measurement of conductivity : the electrical conductivity
varies depending on the volume of chlorine in the seawater
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- Reflectivity : measured by the principle that the
light is refracted differently depending on the volume
of chlorine in the seawater. Similar principle and
shape to sugar content meter.
- Hydrometer : measured by the principle that the
density of the seawater varies depending on the chloride
in the seawater. Most cheap and easy method, but the
accuracy is relatively low compared with other apparatus
and temperature compensation is needed.
Measurement of conductivity is calculated by measuring
the resistance which is the ion-carrying capacity
of an electrolytic solution in the electrical field
between the two electrodes put in the electrolytic
solution to induce current.
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The Sensor
Unit have guaranteed ±1% cell constant and Pt100 temperature
compensation elements.
The cell is constructed in stainless steel and is resistant
to polarization, requiring virtually no maintenance.
The design and method of construction has resulted in a world
class product with an enviable reputation for long life, quality
and reliability.
Salinity Indicator Unit provides the operator interface and
communications to other devices.
The signal from the sensing unit is converted by the converter
unit and operator can read easily, FND as a conductivity value.
An alarm relay output signal is supplied as standard.
An analog 4-20mA Output signal, one solenoid relay output
and RS232 serial interface.
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Salinity Indicator comprises an indicating converter
unit and a sensing unit to accurately, and reliably, measure
and indicating, converting the conductivity value in a range
of water monitoring applications.
offers high performance and advanced functionality in a compact
cost effective package.
It is rugged and reliable for safe operation in harsh environments,
simple to install and use, and require minimum maintenance.
Compact panel mounting Indicating converter unit allows easy
installation. The unique FND is easy to read in all light conditions.
Salinity Indicator unit can be supplied with a current output
to enable the conductivity to be retransmitted. |
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Particulars
| Model |
SMS-C03 |
| Measurable
point |
One(1) Point |
Measurable
Range
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0 to 20.0 ppm or 0 to
100 ppm |
| Measuring
accuracy |
±2% |
| Temperature
compensation Range |
5 to 150℃ (±1%) |
Power :AC 220 × 60Hz × 1p
Alarm
| Setting
Point |
0.1 to 20.0 ppm or 0.1
to 100 ppm |
| External
signal "NO & NC" Contact |
One circuit |
Indication Box
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Indication |
Digital Indication |
| Enclosure |
IP 44 |
Cell
| Design
pressure |
Max. 15kgf/cm2 (1.5Mpa) |
| Connecting
screw |
PT 1-1/4 |
Cable
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Each 5m |
Other
| 4-20mA.
External indication Output |
One circuit |
| RS232 |
One circuit |
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