2-wire level transmitter

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Conversion of resistance variation to standard analog current signals, e.g. from Ohmic level sensors or valve positions.
User-defined linearization function can be activated.

Within a few seconds the user can program PR5343B to measure within the defined Ohmic values.
Continuous check of vital stored data for safety reasons.
The transmitter is protected against polarity reversal.
PR5343B is configured to the current task by way of a PC, the PReset software and the communications interface Loop Link.
The PRelevel configuration tool included in the PReset software has been developed specifically for the configuration of level applications. Among other things, it contains a function for ”on line” measurement of input span as well as a linearization function for volume linear output from horizontal cylindrical tanks.

Operating temperature	-40°C to +85°C
Calibration temperature	20...28°C
Relative humidity	< 95% RH (non-cond.)
Protection degree (encl./terminal)	IP68 / IP00

Supply
Supply voltage	8.0...30 VDC
Internal power dissipation	25 mW…0.7 W
Response time
Response time (programmable)	0.33...60 s
Voltage drop	8.0 VDC
Warm-up time	5 min.
Programming	Loop Link
Signal / noise ratio	Min. 60 dB
Accuracy	Better than 0.1% of sel. range
Signal dynamics, input	19 bit
Signal dynamics, output	16 bit
Effect of supply voltage change	< 0.005% of span / VDC
EMC immunity influence	< ±0.5% of span

Common input specifications
Max. offset	50% of selected max. value
Linear resistance input
Measurement range / min. range (span)	0...100 kΩ / 1 kΩ
Cable resistance per wire (max.)	100 Ω
Sensor current	> 25 μA, < 120 μA
Effect of sensor cable resistance (3-wire)	< 0.002 Ω / Ω
Sensor error detection	Yes
Min. measurement range	1 kΩ

Current output
Signal range	4…20 mA
Min. signal range	16 mA
Load (@ current output)	≤ (Vsupply - 8) / 0.023 [Ω]
Load stability	≤ 0.01% of span / 100 Ω
Sensor error indication	Programmable 3.5…23 mA
NAMUR NE43 Upscale/Downscale	23 mA / 3.5 mA
Common output specifications
Updating time	135 ms
of span	= of the presently selected range

ATEX	II 1 G Ex ia IIC T6...T4 Ga, II 2 D Ex ia IIIC Db, I M1 Ex ia I Ma
IECEx	Ex ia IIC T6...T4 Ga, Ex ia IIIC Db, Ex ia I Ma
FM, US	Cl. I, Div. 1, Gp. A, B, C, D T4/T6; Cl. I Zone 0, AEx ia IIC T4/T6; Cl. 1, Div. 2, Gp. A, B, C, D, T4/T6
INMETRO	Ex ia IIC T6...T4 Ga, Ex ia IIIC Da