YOKOGAWA YTA110 YTA310YTA320

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Temperature Tranitters YTA110,YTA310/YTA320

YTA Series temperature tranitters convert the sensor signals to a unified signal, 4 to 20mA signal or FOUNDATION? fieldbus.

This eliminates the drawbacks of wire resistance and signal ise that are often experienced with conventional temperature instruments, which must be connected by long extension lead wires or three-conductor cables to converters in an instrument panel room.

An additional feature is that both the sensor te and the measurement range can be selected.

Features: Temperature Tranitters YTA110 YTA310/YTA320

Outstanding performance

Microprocessor-based sensing techlogy ensures high accuracy and stability.

High reliability

Dual-compartment housing realizes high resistance capability to harsh environments.

SIL Certification

YTA series temperature tranitters have been certified by TüV RD as being compliant with the requirements of the IEC61508 for SIL 2.

Variety of sensor inputs

The te of sensor input is user-selectable: thermocouples, RTDs, ohms, or DC milivolt.

Dial 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 YTA320 temperature tranitter also supports FOUNDATION fieldbus communication protocol.

Self-diagstics function

Continuous self-diagstics capability ensures long-term performance and lower cost of ownership.

LCD display with bargraph

The LCD display simultaneously displays a dial readout and a bargraph.

Dual universal inputs (Model YTA320)

The YTA320 can accept two thermocouple, RTD, ohm, or DC milivolt inputs. Differential or average temperature tranitter measurement can be selected. A sensor backup function automatically switches-over from the primary sensor to a backup if the sensor fails.

Specifications: Temperature Tranitters YTA110 YTA310/YTA320

Accuracy (tical)

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 te 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 te)

Fieldbus: 9 to 32 V DC

(9 to 24 V DC for Entity and 9 to 17.5 V DC for CO)

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 RD in compliance with the IEC61508 SIL 2 capability for single tranitter use.