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YOKOGAWA vigilantplant YTA50 User Manual page 3

Yta series temperature transmitter

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5.
BLOCK DIAGRAM
mV
RTD.lin.R
TC
-Wire
4
3
2
6
5
+
+
Int.
MUX
PGA
mV
CJC
-
-
4
3
7.
APPROVAL OPTIONS
CENELEC ATEX Intrinsically safe model (/KS2, /DS2)
ATEX Certificate: KEMA 06 ATEX 0191 X
Applicable Standard: EN 50014, EN 50020, EN 50284
II 1 GD, T80°C...T105°C
EEx ia IIC T6
[ Installation diagram ]
Hazardous Location
YTA50
Intrinsically safety rating(maximum value)
Output/Power supply :
Ui=30 V, Ii=120 mA, Pi=0.84 W, Ci<1 nF, Li<10 µH
Sensor :
Uo=9.6 V, Io=25 mA, Po=60 mW, Co<2.4 µF, Lo<33 mH
Applicable in Zone
0, 1, 2, 20, 21, or 22
Maximum Ambient Temperature for gas-proof
For T4: 85°C, For T5/T6: 60°C
Maximum Surface Temperature for dust-proof
For T4: T105°C (Ambient Temperature: –40 to 85°C)
For T6: T85°C (Ambient Temperature: –40 to 60°C)
1
4 mA
Comm.
CPU
A / D
0_16
D / A
mA
EEPROM
2
F01E.EPS
Non-Hazardous Location
Safety
Barrier
F04E.EPS
6.
See wiring diagram. For output signal, use twisted pair or
supply +
7–35VDC
cables with performance equivalent to 600V vinyl insulate cable.
For wiring in high or low temperature, use a wire or cable
suitable for such temperature. Use cables and wires which
meet atmospheric conditions. Take necessary measure to avoid
corrosion or damage of cables and wires.
supply -
Important
4–20 mA
A
When mounting on a sensor head, do not overtighten the
screws.
■ DIMENSIONS
■ WIRING DIAGRAM
1
2
3
4
5
6
DC milivolts
FM Intrinsically safe model (/DS2)
Applicable Standard: FM 3600, FM 3610, FM 3611, FM 3810
Installation diagram
[ Connection with power supply buit in receiver ]
Hazardous Locations
Class I,
Div.1,Groups A,B,C,D
YTA50
[ Connection with seperate power supply and receiver ]
Hazardous Locations
Class I,
Div.1,Groups A,B,C,D
YTA50
Output : standard 4 to 20 mA loop
Note
1. Maximum entity paramters ;
V
=30 VDC, I
MAX
2. Maximum power P
barrier.
If V
oc
If V
oc
WIRING
1
2
3
6
4
5
ø6
(0.24)
33 (1.30)
ø44 (1.73)
(+)
(+)
1
SUPPLY
SUPPLY
2
(–)
(–)
3
(B)
(–)
4
5
(+)
(A)
6
T/C or
Two-wire
RTD or ohm
Non-hazardous
Locations
Safety
barrier
see note 1,2
Non-hazardous
Locations
Safety
barrier
see note 1,2
=120 mA, P
MAX
MAX
=0.84 W is limited by the resistor in the
MAX
=28 V, the resistor shall be more than 233.3Ω.
=30 V, the resistor shall be more than 250.0Ω.
Unit: mm
(Approx. inch)
20.2
(0.80)
F02E.EPS
(+)
(+)
1
1
SUPPLY
SUPPLY
2
2
(–)
(–)
3
3
(B)
(B)
4
4
(B)
(B)
5
5
(A)
(A)
6
6
(A)
Three-wire
Four-wire
RTD or ohm
RTD or ohm
F03E.EPS
Power supply
buit into
receiver
Seperate
Power supply
-
+
-
+
-
+
Receiver
-
+
-
+
-
+
Seperate
Power supply
F05E.EPS
=0.84 W, C
=1 nF, L
=10 µH
I
I

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