Xylem SI Analytics PL-S 82-225pHT VP ProcessLine Manual De Instrucciones página 17

PH COMBINATION ELECTRODE HD
PH COMBINATION ELECTRODE HD
PH COMBINATION ELECTRODE HD
PH COMBINATION ELECTRODE HD
PH COMBINATION ELECTRODE HD
RESISTANCE THERMOMETER HD
RESISTANCE THERMOMETER HD
RESISTANCE THERMOMETER HD
RESISTANCE THERMOMETER HD
RESISTANCE THERMOMETER HD
RESISTANCE THERMOMETER HD
Area of use:
The process sensors are used for the measurement of the pH value, redox potentials and/or
the temperature of process media.
Electrical connection details:
Sensor circuits according to the EEx ia IIC intrinsic safety type of protection, maximum value
of the total:
For sensors with a temperature probe
Temperature class
T6
T4
T3
For sensors without a temperature probe
Temperature class
T6
The magnitudes of the intrinsic inductivity and capacity are negligible.
Under aspects of safety engineering, all current circuits including the shielding and earthing
conductor are to be considered as galvanically interlinked, too.
In addition, the following special requirements are imposed on the set-up and
operation:
•
Explosion protection within atmospheric conditions is established for a pressure from
absolute 80 kPa to 110 kPa and an ambient temperature from -20°C to 60°C. In deviation
thereof, sensors with a temperature probe are certified for an upper limit of 40°C.
•
When used outside atmospheric conditions, the proof of explosion protection has to be
provided by the operator within the context of the explosion protection document.
•
The reliability of the item of equipment item under concern is subject to the standard
manufacturer's information provided for that particular item.
•
The process sensors are built in with a mechanical protection, for instance by way of
using suitable fittings or applying an appropriate physical arrangement.
•
A highly reliable equipotential bonding is to be established all along the intrinsically safe
electric circuit.
•
The treatment of the shielding conductor ought to be found in the operating instructions of
the related item of equipment being used.
•
The shielding conductor is to be incorporated in any measures which may have to be
taken against overvoltages (lightning protection).
H 8181 HD
H 8281 HD
H 8481 HD
PET 50-xxx HD
PET 50-xxx VP
W 2021 HD
W 2021 VP
W 2161 HD
W 2161 VP
W 2081 HD
W 2081 VP
Ambient temperature [°C] U
≤ 40
≤ 40
≤ 40
Ambient temperature [°C]
≤ 60
Koax
Koax
Koax
SMEK
VP
SMEK
VP
SMEK
VP
SMEK
VP
[mA] I [mA] P a
o o
≤ 12 ≤ 30 ≤ 50
≤ 15 ≤ 80 ≤ 110
≤ 18 ≤ 170 ≤ 200
U [mA] I [mA] P a
o o
≤ 18 ≤ 170 ≤ 200
-
-
-
Pt 1000
Pt 1000
PT 100
PT 100
Pt 1000
Pt 1000
Pt 100
Pt 100
[mA]
o
[mA]
o
17