YOKOGAWA YTA110 Temperature Transmitter
The YTA110 is the high performance temperature
transmitter that accepts Thermocouple, RTD, ohms or
DC milivolts inputs and converts it to a 4 to 20 mA DC
signal for transmission. The YTA110 supports either
BRAIN or HART communication protocol.
The YTA110 in it standard configuration is certified by
TÜV as complying with SIL2 for safety requirement.
FEATURES
High performance
Microprocesser-based sensing technology ensures
long-term accuracy and high reliability.
High reliability
Dual-compartment housing realizes high resistance
capability to harsh environments, and YTA110 has
SIL2 capability for safety requirement.
Variety of sensor inputs
The type of sensor input is user-selectable from
thermocouples (T/C), RTDs, ohms, or DC milivolts.
Digital communication
BRAIN or HART® communication protocol is
available. The insturment configuration can be
changed by the user with using the BT200 or HART
communicator.
Self-diagnostics function
Continuous self-diagnostics capability ensures
longterm performance and lower cost of ownership.
LCD display with bargraph
The LCD display provides both a digital readout and
percent bargraph simultaneously.
STANDARD SPECIFICATIONS
■ PERFORMANCE SPECIFICATIONS
Accuracy
(A/D accuracy/span + D/A accuracy) or ± 0.1 % of
calibrated span, whichever is greater.
See Table 1. on page 3.
Cold Junction Compensation Accuracy
(For T/C only)
± 0.5°C (± 0.9°F)
Ambient Temperature Effect (per 10°C change)
± 0.1 % or ± (Temperature Coefficient /span),
whichever is greater. See Table 2. for Temperature
Coefficient.
Stability
RTD:
± 0.1% of reading or ± 0.1°C per 2 years,
whichever is greater at 23±2°C.
T/C:
± 0.1% of reading or ± 0.1°C per year, whichever
is greater at 23±2°C.
5 Year Stability
RTD:
± 0.2% of reading or ± 0.2°C, whichever is
greater at 23±2°C.
T/sC:
± 0.4% of reading or ± 0.4°C, whichever is
greater at 23±2°C.
Power Supply Effect
± 0.005% of calibration span per volt
Vibration Effect
10 to 60 Hz 0.21 mm peak displacement
60 to 2000 Hz 3G
Position Effect
None
■ FUNCTIONAL SPECIFICATIONS
Input
Input type is selectable: Thermocouples, 2-, 3-, and
4-wire RTDs, ohms and DC milivolts. See Table 1. on
page 3.
Span & Range Limits
See Table 1. on page 3.
Input signal source resistance (for T/C, mV)
1 kΩ or lower
Input lead wire resistance (for RTD, ohm)
10 Ω per wire or lower