8
FLEX Ex Thermocouple/RTD Input Module
Publication
1797-IN004G-EN-P - August 2017
Special Conditions for Safe Use:
The module may only be used with the terminal base type 1797-TB3/* or
type 1797-TB3S/* (DMT 98 ATEX E012U)
A warning label shall be installed in immediate proximity of these apparatus:
ATTENTION! Avoid electrostatic charging
.
Inputs
Each input can be operated from a thermocouple (TC) or resistance
temperature detector (RTD).
Do not apply any nonintrinsically safe
signals to this module.
When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.
The channels in this module are electrically connected to each other and have
a common plus-line.
IMPORTANT
When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.
Thermocouple
Flexbus
Bus
uC
+V
Power
Supply
-V
L
H
-
+
+
mV
-
2W RTD
3W RTD
4W RTD
CJC
+
-
GND
irt8custconxn
Содержание FLEX Ex 1797-IRT8
Страница 33: ...FLEX Ex Thermocouple RTD Input Module 33 Publication 1797 IN004G EN P August 2017 Notes ...
Страница 34: ...34 FLEX Ex Thermocouple RTD Input Module Publication 1797 IN004G EN P August 2017 Notes ...
Страница 35: ...FLEX Ex Thermocouple RTD Input Module 35 Publication 1797 IN004G EN P August 2017 Notes ...