The Yokogawa Temperature Transmitter YTA320 is the highly accurate temperature transmitters that accept Thermocouple, RTD, ohms or DC milivolts inputs and converts it to a 4 to 20 mA DC signal for transmission.
The YTA320 is a single sensor input model, and the Yokogawa Temperature Transmitter YTA320 is a dual input model. Both models support either BRAIN or HART® communication protocol, and also supports FOUNDATION fieldbusTM.
The YTA320 in their standard configuration, with the exception of the Fieldbus type, are certified by TÜV as complying with SIL 2 for safety requirement.
Features
Yokogawa Temperature Transmitter YTA320
Outstanding performance
Microprocessor-based sensing technology ensures high accuracy and stability.
High reliability
Dual-compartment housing realizes high resistance capability to harsh environments.
SIL Certification
Yokogawa Temperature Transmitter YTA320 has been certified by TÜV NORD as being compliant with the requirements of the IEC61508 for SIL 2.
Variety of sensor inputs
The type of sensor input is user-selectable: thermocouples, RTDs, ohms, or DC milivolt.
Digital communication
The BRAIN and HART communication protocols are available.
The instrument configuration can be changed by the user with a BT200 terminal or HART communicator.
The Yokogawa Temperature Transmitter YTA320 also supports FOUNDATION fieldbus communication protocol.
Self-diagnostics function
Continuous self-diagnostics capability ensures long-term performance and lower cost of ownership.
LCD display with bargraph
The LCD display simultaneously displays a digital readout and a bargraph.
Specifications
Yokogawa Temperature Transmitter YTA320
|
Accuracy (typical)
|
YTA110: ±0.1% of span
|
|
YTA310/320: ±0.05% of span
|
|
Cold junction Compensation accuracy
|
(For T/C only)
|
|
±0.5 deg C (0.9 deg F)
|
|
Power supply effect
|
±0.005% of calibration span per volt
|
|
Ambient temperature effect
|
±0.1%/10 deg C (YTA110)
|
|
Input signal
|
YTA110/YTA310: single input, YTA320: dual input
|
|
Input type is selectable: thermocouples, 2-, 3-, and 4-wire RTDs, ohm and DC milivolt
|
|
Output
|
Two wire 4 to 20 mA DC or FOUNDATION fieldbus signal (YTA320)
|
|
Supply voltage
|
BRAIN and HART: 10.5 to 42 V DC
|
|
(10.5 to 30 V DC for Intrinsically safe type)
|
|
Fieldbus: 9 to 32 V DC
|
|
(9 to 24 V DC for Entity and 9 to 17.5 V DC for FISCO)
|
|
Ambient temperature
|
Option code may affect limits
|
|
-40 to 85 deg C (-40 to 185 deg F)
|
|
-30 to 80 deg C (-22 to 176 deg F) with integral indicator
|
|
Mounting
|
Optional mounting bracket can be used either for two-inch pipe or flat panel mounting.
|
|
Weight
|
1.2 kg (2.6lb) without integral indicator and mounting bracket. Integral indicator weighs 0.2kg (0.4lb).
|
|
Degrees of protection
|
IP66, IP67 and NEMA 4X
|
|
Certificates
|
CENELEC, CSA, FM, IECEx or TIIS
|
|
SIL Certificate
|
Certified by TÜV NORD in compliance with the IEC61508 SIL 2 capability for single transmitter use.
|
Models and Suffix Codes
Yokogawa Temperature Transmitter YTA320
|
Model
|
Suffix Codes
|
Descriptions
|
|
YTA310 YTA320
|
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
|
Temperature Transmitter with Single Sensor Input
Temperature Transmitter with Dual Sensor Input
|
|
Output Signal
|
-D • • • • • • • • • • • • • • • • • • • • -E • • • • • • • • • • • • • • • • • • • •
-F • • • • • • • • • • • • • • • • • • • •
|
4 to 20mA DC with digital commnuication (BRAIN protocol)
4 to 20mA DC with digital communication (HART protocol)
Digital communication (FOUNDATION Fieldbus protocol)*1
|
|
-------
|
A • • • • • • • • • • • • • •
|
Always A
|
|
Electrical Connection
|
0 • • • • • • • • • • • • • 2 • • • • • • • • • • • • •
3 • • • • • • • • • • • • •
4 • • • • • • • • • • • • •
|
G1/2 female
1/2 NPT female
Pg 13.5 female
M20 female
|
|
Integral Indicator
|
D • • • • • • • •
N • • • • • • • •
|
with digital indicator
None
|
|
Mounting Bracket
|
B • •
D • •
J • •
K • •
N • •
|
SUS304 Stainless steel 2-inch horizontal pipe mounting *1
SUS304 Stainless steel 2-inch vertical pipe mounting *1
SUS316 Stainless steel 2-inch horizontal pipe mounting *1
SUS316 Stainless steel 2-inch vertical pipe mounting *1
None
|
|
Optional Codes
|
/◊ Optional Specifications
|