2-wire HART transmitter

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Linearized temperature measurement with TC and RTD sensors e.g. Pt100 and Ni100.
HART communication and 4...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...20 mA current signals.
Up to 63 transmitters (HART 7) can be connected in a multidrop communication setup.

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.
6337A 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 NE21 recommendations, the 6337A HART transmitter ensures top measurement performance in harsh EMC environments. Additionally, the 6337A meets NAMUR NE43 and NE89 recommendations.

DIN rail mounting with up to 84 channels per meter.
Configuration via standard HART communication interfaces or by PR 5909 Loop Link.
The 6337A can be mounted in zone 2, 22 / Class I, Division 2, Groups A, B, C, D.

Supply
Supply voltage	8.0...35 VDC
Internal power dissipation, 1 / 2 ch.	19 mW...0.8 / 1.6 W
Isolation voltage
Isolation voltage, test / working	1.5 kVAC / 50 VAC
Response time
Response time (programmable)	1...60 s
Voltage drop	8.0 VDC
Signal / noise ratio	> 60 dB
Accuracy	Better than 0.05% of selected range
EMC immunity influence	< ±0.1% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst	< ±1% of span

Common input specifications
Max. offset	50% of selected max. value
RTD input
RTD type	Pt50/100/200/500/1000; Ni50/100/120/1000
Cable resistance per wire	5 Ω (up to 50 Ω per wire is possible with reduced measurement accuracy)
Sensor current	Nom. 0.2 mA
Linear resistance input
Linear resistance min....max.	0 Ω...7000 Ω
TC input
Thermocouple type	B, E, J, K, L, N, R, S, T, U, W3, W5
Cold junction compensation (CJC)	Constant, internal or external via a Pt100 or Ni100 sensor
Voltage input
Measurement range	-800...+800 mV
Min. measurement range (span)	2.5 mV
Input resistance	10 MΩ

Current output
Signal range	4…20 mA
Min. signal range	16 mA
Load (@ current output)	≤ (Vsupply - 8) / 0.023 [Ω]
Sensor error indication	Programmable 3.5…23 mA
NAMUR NE43 Upscale/Downscale	23 mA / 3.5 mA
Common output specifications
Updating time	440 ms
HART protocol revisions	HART 7 and HART 5