Main Features
4
TDS
is a calculated value based on the conductivity of the solution (TDS = factor x EC
25
). A TDS factor is a
conversion factor used to change an EC measurement to a ppm measurement.
Sal psu
: The practical salinity of seawater relates the ratio of electrical conductivity of a normal seawater sample
at 15 ºC and 1 atmosphere to a potassium chloride solution (KCl) with a mass of 32.4356 g/Kg water at the
same temperature and pressure. Under these conditions the ratio is equal to 1 and S=35. The practical salinity
scale may be applied to values 0 through 42.00 psu at temperatures between 0 to 35 ºC.
Sal ppt:
measurements expressed in
ppt
are based on the Natural Seawater Scale that extends from 0.00 to
80.00 g/L and covers 10 to 31 °C temperature range. It determines the salinity based upon a conductivity ratio
of sample to standard seawater at 15 °C and an approximate salinity value of 35 in seawater.
Sal %:
in this scale 100% salinity is equivalent to roughly 10% solids.
The conductivity probes can be installed directly in-line, immersed in a tank, or in a flow cell, and are suited
for continuous measurement of conductivity and associated parameters required in applications such as water
treatment, drinking water, feed water condensate, or other clean water applications as well as sea water and
surface-water monitoring.
The probe is available with an
integral connector
that permits connections with no twisted cables as cables
are connected after installation.
Patch cables
may be purchased separately to connect between the probe and controller up to 50 meters (164 ft).
4. MAIN FEATURES
• Rugged, chemically-resistant PVDF body
•
3/4
” NPT external thread for mounting
• 6 bar (87 psi) maximum pressure at 25 °C (77 °F)
• Digital probe stores model, firmware, serial number, and calibration information
5. SERIES CONFIGURATION
HI7630
– y
8
z z
y
2
Two-electrode cell conductivity, AISI 316 stainless steel
cell constant k ≈ 0.1/cm
4
Four-ring conductivity, platinum on glass
cell constant k ≈ 1.0/cm
8
Smart probe
with RS485 connection
zz
00
supplied with DIN connector (without cable)*
05
,
10
,
15
,
25
,
50
fixed cable length (in meters)
*
See Accessories section for patch cable ordering codes.
