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