User Manual
IM 12J05C01-01E
General Specifications 2-10
2-8. Control Drawing of DO202S mA HART® Specification (CSA)
・ Electrical data of the DO202S.
- Supply and output circuit (terminals + and -)
Maximum input voltage V
max
= 31.5 V. Maximum input current I
max
= 100 mA.
Maximum input power P
max
= 1.2 W.
Effective internal capacitance C
i
= 22nF. Effective internal inductance L
i
= 35 PH.
- Sensor input circuit (terminals 11 through 18):
Maximum output voltage V
oc
= 14.4 V. Maximum output current I
sc
= 22 mA.
Maximum allowed external capacitance C
a
= 643 nF.
Maximum allowed external inductance L
a
= 70 mH.
・Barriers and power supply should be CSA certified. The specifications must not exceed the
maximum values as shown in the diagram above. Installation should be in accordance
with Canadian Electrical Code, Part I.
Maximum safe area voltage should not exceed 250 V
RMS
.
For Class I, Div. 2, Group ABCD the CSA certified barrier is not required, and the
Sensor input circuit (terminals 11 through 18) is non-incendive having the parameters :
Maximum output voltage V
oc
= 14.4 V. Maximum output current I
sc
= 22 mA.
Maximum allowed external capacitance C
a
= 3.5μF.
Maximum allowed external inductance L
a
= 160mH.
・ The Hand Held Communicator must be of a CSA certified intrinsically safe type in case it
is used on the intrinsically safe circuit in the hazardous area, or of a CSA certified
non-incendive type in case it is used on the non-incendive circuit in the hazardous area.
Safe area
Vmax = 31.5 VoltDC
Imax = 100 mA
Pmax = 1.2 Watt
CSA certified
Power Supply
(HART compatible) )
Output
Supply
Sensor
terminals 11-18
+
_
G
Sensor
terminals 11-18
Hazardous area Safe area
+
_
G
Fuctional
earth
Functional
earth
Intrinsically safe design
CSA Ex ia Class I, Div.1, Group ABCD, T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
DO202S transmitter
+
-
Load
Resistance
Imax = 100 mA
Vmax = 31.5 VoltDC
Hazardous area
Functional
earth
+
_
24 volts DC Nominal
Supply Voltage.
CSA certified safety barrier or
power supply with Rint=300 :
(HART compatible)
Suitable values are:
For electrical data:
see text below.
For electrical data:
see text below.
Suitable values are:
Intrinsically safe design
CSA Ex ia Class I, Div.1, Group ABCD, T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
DO202S transmitter