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Analogue Sensor Controller

RD series

This model has been discontinued.
Compliance with the certification standard is ensured as of the time of shipment from our company.

Main Unit RD-50EW

Name: Main Unit - RD-50EW
Brand: KEYENCE

RD-50EW - Main Unit

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)

Data Sheet (PDF)

Manuals

Specifications

Model		RD-50EW
Measurement function		DC voltage measurement, DC current measurement
A/D converting system		Successive comparison
Measurement range		±5 VDC, ±10 VDC, 4 to 20 mA DC (selectable)
Display range		-19999 to +39999
Measurement accuracy		±0.03 % of F.S. (at ±5 VDC range), ±0.03 % of F.S. (at ±10 VDC range) ±0.05 % of F.S. (at 4 to 20 mA DC range)
Input	Impedance	1 MΩ (for voltage input), 350 Ω (for current input)
	System	Single-ended
	Number of inputs	2
Sampling rate		2,000 times/second
Display speed		20 times/second
Display power		7-segment 3-colour LED (character height: 15.24 mm)
Over-range alarm		FFFF is displayed
Control input		Synchronous, Hold-reset, Auto-zero, External setting, NPN or non-voltage contact signal
Control input	Timing input
	Hold reset input
	Auto-zero input
	External setting input
Controloutput	Setting method	4 steps x 8 programmable setups (selectable)^*1
	Signal	5 x NPN (HH, HI, GO, LO, LL): 100 mA max. (40 V max.)^*1
	Response time	1 ms (when average number 1)^*1
	OFF-delay time	60 ms (ON/OFF selectable)^*1
Analogue output voltage	Output voltage	±10 VDC
	Impedance	100 Ω
	Response time	1 ms (when average number 1)^*2
Interface		Control input by NPN open-collector ornon-voltage contact signal
Major functions		MDL, digital fi lter, auto-zero, offset, input, data processing (10 modes), tolerance limit storage (up to 8 sets), decimal point shift, error message display, etc.
Rating	Power voltage	24 VDC ±10 %, Ripple (P-P) 10 % or less
	Current consumption	270 mA or less
Environmental resistance	Ambient temperature	0 to +50 °C
	Relative humidity	35 to 85 % RH (No condensation)
	Vibration resistance	10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Weight		Approx. 700 g (excluding fi ttings)
^1 NPN output can easily be converted to PNP output by connecting the optional OP-5148 PNP output converter. ^2 Requires 1.5 ms every second during self-compensation sequence to prevent temperature fl uctuations.

Data Sheet (PDF) Other Models