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TXUN-HT 2-Wire Transmitter w/Hart Protocol Enabled

2 Wire Transmitter Hart Protocol Enabled

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TXUN HT 2 Wire Transmitter w Hart Protocol Enabled 12907

 Application

• Linearized temperature measurement with TC and RTD sensors e.g. Pt100 and Ni100.
• HART communication and 4 to 20 mA analog PV output for individual, difference or average temperature measurement of up to two RTD or TC input sensors.
• Conversion of linear resistance to a standard analog current signal, e.g from valves or Ohmic level sensors.
• Amplification of bipolar mV signals to standard 4 to 20 mA current signals.
• Up to 63 transmitters (HART 7) can be connected in a multidrop communication setup.
Technical Characteristics
• HART protocol revision can be changed by user configuration to either HART 5 or HART 7 protocol.
• The HART 7 protocol offers:
     • Long Tag numbers of up to 32 characters.
     • Enhanced Burst Mode and Event notification with time stamping.
     • Device variable and status mapping to any dynamic variable PV, SV, TV or QV.
     • Process signal trend measurement with logs and summary data.
     • Automatic event notification with time stamps.
     • Command aggregation for higher communication efficiency.
     • TXUN-HT is designed according to strict safety requirements and is therefore suitable for applications in SIL installations.
     • Continuous check of vital stored data. Meeting the NAMUR NE 21 recommendations, the TXUN-HT HART transmitter ensures top measurement performance in harsh EMC environments. Additionally, the TXUN-HT meets NAMUR NE43 and NE89 recommendations.
Mounting/Installation
• For DIN form B sensor head mounting.
• Configuration via TXUN-KIT for standard set up or via HART programming unit for Hart Communication set up. See links in Notes.
• HART Protocol Revision Selectable from HART 5 or HART 7
• RTD, TC, O, and Bipolar mV Input
• 2 Analog Inputs and 5 Device Variables with Status Available
• Hardware Assessed for Use in SIL Applications
Environmental Conditions
Operating Temperature-40 to 85°C
Calibration Temperature20 to 28°C
Relative Humidity< 95% RH (non-cond.)
Protection Degree (encl./Terminal)IP68/IP00
Mechanical Specifications
DimensionsØ 44 x 20.2 mm
Weight Approx50 g
Wire Size1 x 1.5 mm2 stranded wire
Screw Terminal Torque0.4 Nm
VibrationIEC 60068-2-6
2 to 25 Hz±1.6 mm
25 to 100 Hz±4 g
Common Specifications
Supply
Supply Voltage8.0 to 30 Vdc
Isolation Voltage
Isolation Voltage, Test/Working1.5 kVAC/50 Vac
Response Time
Response Time (Programmable)Loop Link and HART
Signal/Noise Ratio> 60 dB
AccuracyBetter than 0.05% of selected range
Signal Dynamics, Input22 bit
Signal Dynamics Output16 bit
EMC Immunity Influence< ±0.1% of span
Extended EMC immunity: NAMUR NE21, A Criterion, Burst< ±1% of span
Input Specifications
Common Input Specifications
Max. Offset50% of selected max. value
RTD Input
RTD TypePt50/100/200/500/1000 Ni50/100/120/1000
Cable Resistance per Wire5 Ω (up to 50 Ω per wire is possible with reduced measurement accuracy)
Sensor CurrentNom. 0.2 mA
TC Input
Thermocouple TypeB, E, J, K, L, N, R, S, T, U, W3, W5, LR
Cold junction compensation (CJC)Constant, internal or external via a Pt100 or Ni100 sensor
Voltage Input
Measurement Range-800 to 800 mv
Min. Measurement Range (Span)2.5 mV
Input Resistance10 MΩ
Output Specifications
Current Output
Signal Range4 to 20 mA
Min. Signal Range16 mA
Load ( @ Current Output)≤ (Vsupply - 8)/0.023 [Ω]
Sensor Error IndicationProgrammable 3.5 to 23 mA
NAMUR NE43 Upscale/Downscale23 mA/3.5 mA
Common Output Specifications
Updating Time440 ms
HART Protocol RevsionsHART 7 and HART 5
Observed Authority Requirements
EMC2014/30/EU
EACTR-CU 020/2011
Approvals
ATEX 2014/34/EUKEMA 03ATEX1537
IECExKEM 10.0083X
FMFM17US0013X
CSA1125003
INMETRONCC 12.0844 X
EAC EX TR-CU 012/2011RU C-DK.GB08-V00410
DNV-GL MarineStand. f. Certific. No. 2.4
SILHardware assessed for use in SIL applications

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