YOKOGAWA vigilantplant YTA50 User manual

User’s
Manual YTA50
Temperature Transmitter
IM 01C50C01-01E
6th Edition
6th Edition : Feb. 2007 (YK)
All Rights Reserved, Copyright © 1998, Yokogawa Electric Corporation
SAFETY INSTRUCTIONS
Ex installation:
For a safe installation of YTA50 in hazardous area the following
must be observed. The module must only be installed by
qualified personnel who are familiar with the national and
international laws, directives and standards that apply to
this area.
Year of manufacture can be taken from the first two digits in the
serial number.
The sensor circuit is not infallibly galvanically isolated from the
input circuit. However, the galvanic isolation between the
circuits is capable of withstanding a test voltage of 500 Vac
during 1 minute.
The transmitter must be mounted in an enclosure in order to
provide a degree of ingress protection of at least IP20.
In explosive atmospheres caused by air / dust mixtures:
The transmitter may only be installed in a potentially explosive
atmosphere caused by the presence of combustible dust
when mounted in a metal enclosure form B according to
DIN 43729 that is providing a degree of ingress protection
of at least IP 6X in accordance with EN 60529, that is
suitable for the application and is correctly installed.
Cable entries and blanking elements shall be used that are
suitable for the application and correctly installed.
For an ambient temperature ≥60°C, heat resistant cables shall
be used with a rating of at least 20 K above the ambient
temperature.
Special Conditions for Safe Use:
If the enclosure in which the transmitter is mounted is made of
aluminium and installed in Zone 0, 1 or Zone 20, 21 or 22 it
shall not contain by weight more than 6% in total of
magnesium and titanium.
The additional enclosure of the apparatus shall be designed
and/or installed in such a way that, even in the event of rare
incidents, ignition sources due to impact and friction sparks
are excluded.
Nov. '06
YOKOGAWA ELECTRIC CORPORATION
Headquarters
2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JAPAN
Branch Sales Offices
Nagoya, Osaka, Hiroshima, Fukuoka, Sapporo, Sendai, Ichihara, Toyoda,
Kanazawa, Takamatsu, Okayama, and Kitakyusyu.
YOKOGAWA CORPORATION OF AMERICA
Headquarters
2 Dart Road, Newnan, Georgia 30265-1094, U.S.A.
Phone : [phone] Fax : [phone]
YOKOGAWA EUROPE B. V.
Headquarters
Databankweg 20 Amersfoort 3821 AL, THE NETHERLANDS
Phone : [phone] Fax : [phone]
Branch Sales Offices / Wien (Austria), Zaventem (Belgium), Ratingen (Germany),
Madrid (Spain), Runcorn (United Kingdom), Milano (Italy), Velizy Villacoublay (France),
Roodeport (Republic of South Africa), Budapest (Hungary), Stockholm (Sweden)
YOKOGAWA AMERICA DO SUL Ltda.
Head Office
Praca Acapulco, 31 - Santo Amaro. Sao Paulo/SP - BRAZIL
Phone : [phone] Fax : [phone]
YOKOGAWA ELECTRIC ASIA PTE. LTD.
Head Office
5 Bedok South Road, 469270 SINGAPORE
Phone : [phone] Fax : [phone]
YOKOGAWA ELECTRIC KOREA CO., LTD.
Head Office
14-1, Yangpyongdong-4Ga, Youngdeungpo-Gu, Seoul, 150-866 KOREA
Phone : [phone] Fax : [phone]
YOKOGAWA AUSTRALIA PTY. LTD.
Head Office (Sydney)
Tower A, 112-118 Talavera Road, Macquarie Park, N.S.W.2113, AUSTRALIA
Phone : [phone] Fax : [phone]
YOKOGAWA INDIA LTD.
Head Office
Plot No.96 Electronic City Complex, Hosur Road, Bangalore 560100, INDIA
Phone : [phone] Fax : [phone]
YOKOGAWA CHINA CO., LTD.
K. Wah Centre 29F, 1010 Huai Hai Zhong Rd., Shanghai 200031, CHINA
Phone : [phone] Fax : [phone]

The YTA50 is a head mount type of temperature transmitter that
accepts thermocouple or RTD input and converts it to a 4 to 20
mA DC signal for transmission. The YTA50 conforms to the
standard DIN form B head mounting.
It is imperative that usres observe the instructions in this
manual to ensure the protection and safety of operators.
1. MODEL AND SUFFIX CODES
Te mperature Transmitter (Head Mount Type)
T01E.EPS
Model Suffix code Descriptions
YTA50 ..................
Output
Signal
Optional
Specifications
-A .............
/KS2 EEx ia llC T1-6
Amb. Temperature
T1-4: -40 to 85°C
T5-6: -40 to 60°C
CENELEC ATEX/FM intrinsically
safe approval combination
CENELEC:
EEx ia llC T1-6
FM: IS Class I, Div.1,
Groups A, B, C & D
/DS2
CENELEC ATEX intrinsically
safe approval
4 to 20 mA DC
2. WARRANTY
The warranty period of the instrument is as of condition shown
when purchasing. Any trouble arising during the warranty period
shall be replaced at free of charge.
The following problems or troubles shall not be eligible of
charge-exempt repair.
•Caused by improper usage or storage of the customer which
exceeds the specification requirements.
•Caused by mishandling or modification.
•Caused by fire, earthquake or other acts of God that are not
directly a result of problems of the instrument.
3. HANDLING PRECAUTIONS
(1) Read this manual thorughly and carefully before handling
the instruments. Observe the instructions.
(2) Store the product in location that meets the following
requirements.
•No exposure to rain or water
•No major mechanical vibration or shock
•Humidity and Temperature limitations
• Ordinary conditions(25°C, 65%) is preferable.
Otherwise, as of specified in “Standard Specifications.”
(3) Avoid corrosive atmosphere for storage and installation.
(4) For safe installation of the transmitter in hazardous area,
the following must be observed. The module must only be
installed by qualified personnels who are familiar with the
national and international laws, directives, and standards
that apply to this area.
(5) Yokogawa will not be liable for malfunctions or damage
resulting from any modification made to this instrument by
the customer.
4. STANDARD SPECIFICATIONS
Accuracy
See table in the right.
Cold Junction Compensation Accuracy(For T/C only)
±1°C(±1.8°F)
Ambient Temperature Effects (per 10°C Change)
See table in the right
T/C
RTD
DC Voltage [mV]
Resistance [⍀]
B
E
J
K
N
R
S
T
L
U
W3
W5
Pt100
Ni100
IEC584
DIN43710
ASTM E988-90
IEC751
DIN43760
400 to 1820
-100 to 1000
-100 to 1200
-180 to 1372
-180 to 1300
-50 to 1760
-50 to 1760
-200 to 400
-100 to 900
-200 to 600
0 to 2300
0 to 2300
-200 to 850
-60 to 250
-10 to 800 mV
0 to 5000⍀
200
50
50
50
100
200
200
50
50
75
200
200
25
25
5 mV
30⍀
±0.1% or ±2.0°C
±0.1% or ±1.0°C
±0.1% or ±2.0°C
±0.1% or ±1.0°C
±0.1% or ±2.0°C
±0.1% or ±0.2°C
±0.1% or ±0.01mV
±0.1% or ±0.1⍀
Type Standard Input
ranges °CAccuracy *
1
Minimum
span °C
T02E.EPS
Temperature
effect *
1
±0.1% or ±2.0°C
±0.1% or ±0.5°C
±0.1% or ±2.0°C
±0.1% or ±0.5°C
±0.1% or ±2.0°C
±0.1% or ±0.1°C
±0.1% or ±10␮V
±0.1% or ±0.1⍀
*1 : The value whichever is greater. value in % indicates the
% of span.
Power Supply Effects
±0.005% of FS per Volt
RFI Effects
Tested per EN 61326, field intensity up to 10 V/m.
EMC Conformity
EN 61326
Maximum Zero Offset
±50% of the maximum temperature
Input Signal Source Resistance (for T/C input)
10 MΩ, or 3 kΩat power-off
Input Lead Wire Resistance (for RTD input)
5 Ωper wire or lower
Burnout
High (21.6 mA or more) or Low (3.6 mA or less)
Output
Two wire 4 to 20 mA DC
Response Time
1 to 60 sec (as specified upon shipment)
Ambient Temperature Limits (Option code may affect limit.)
–40 to 85°C (–40 to 185°F)
Ambient Humidity Limits
5 to 90% RH at 40°C (104°F)
Supply Voltage
7 to 35 V DC
7 to 30 V DC for Intrinsically safe type
Load Resistance (Limitation)
0 to (E–7)/0.023 [Ω], where E is power supply voltage.
Ex. 739 Ωmax. @ 24 V DC
Isolation
Input/output isolated to 1500 V AC.
Mounting
DIN form B head mounting
Terminals
M3 screws
Weight
50 g(0.11 lb)

5. BLOCK DIAGRAM
mV
mV TC
MUX
CPU
4 mA
supply +
7–35VDC
supply
-
4–20 mA
Comm.
EEPROM
A/D
D/A
PGA
Int.
CJC
RTD.lin.R
- Wire
+
-
+
-
4 3 2 6
2
1
5
4
3
0_16
mA
F01E.EPS
A
6. WIRING
See wiring diagram. For output signal, use twisted pair or
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.
Important
When mounting on a sensor head, do not overtighten the
screws.
■DIMENSIONS
F02E.EPS
Unit: mm
(Approx. inch)
20.2
(0.80)
ø6
(0.24) 33 (1.30)
ø44 (1.73)
2
1
3
4
65
■WIRING DIAGRAM
T/C or
DC milivolts
Two-wire
RTD or ohm
Three-wire
RTD or ohm
Four-wire
RTD or ohm
1
2
3
4
5
6
(–)
(+)
(B)
(B)
1
2
3
4
5
6
(B)
(B)
1
2
3
4
5
6
(B)
(A)
SUPPLY
1
2
3
4
5
6
(A) (A)
(A)
(–)
(+)
SUPPLY
(–)
(+)
SUPPLY
(–)
(+)
SUPPLY
(–)
(+)
F03E.EPS
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
Non-Hazardous LocationHazardous Location
YTA50 Safety
Barrier
F04E.EPS
[ Installation diagram ]
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)
FM Intrinsically safe model (/DS2)
Applicable Standard: FM 3600, FM 3610, FM 3611, FM 3810
Installation diagram
see note 1,2
see note 1,2
Non-hazardous
Locations
Hazardous Locations
YTA50 Safety
barrier
Class I,
Div.1,Groups A,B,C,D
Power supply
buit into
receiver
Seperate
Power supply
+ -
Seperate
Power supply
-+
Receiver
Non-hazardous
Locations
Hazardous Locations
YTA50 Safety
barrier
F05E.EPS
[ Connection with power supply buit in receiver ]
[ Connection with seperate power supply and receiver ]
Class I,
Div.1,Groups A,B,C,D
+
-
+
-
-
+
-
+
Output : standard 4 to 20 mA loop
Note
1. Maximum entity paramters ;
VMAX=30 VDC, IMAX=120 mA, PMAX=0.84 W, CI=1 nF, LI=10 µH
2. Maximum power PMAX=0.84 W is limited by the resistor in the
barrier.
If Voc=28 V, the resistor shall be more than 233.3Ω.
If Voc=30 V, the resistor shall be more than 250.0Ω.