RD series

Analog Sensor Controller

Model		RD-50E	RD-50R
Measurement function		DC voltage measurement, DC current measurement
A/D converting system		Successive comparison
Measuring range		±5 VDC, ±10 VDC, 4 to 20 mA DC (selectable)
Display range		-19,999 to +39,999
Measuring 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		2000/s
Display rate		20/s
Display character		7-segment 3-color LED (character height: 15.24 mm 0.60")
Range-over alarm		FFFF is displayed
Control input		Synchronous, Hold-reset, Auto-zero, External setting, NPN or non-voltage contact signal
Control output^*1	Tolerance setting	4 steps x 8 programmable setups (selectable)
	Signal	5 x NPN (HH, HI, GO, LO, LL): 100 mA max. (40 V max.)
	Response time	1 ms (when average number 1)
	Off-delay time	60 ms (ON/OFF selectable)
Analog voltage output	Voltage	±10 VDC
	Impedance	100 Ω
	Response time	1 ms (when average number 1) ^*2
Interface		Control input by NPN open-collector or non-voltage contact signal	Data output and control input through RS-232C
Rating	Power supply	24 VDC ±10%
	Current consumption	270 mA max.
Ambient temperature		0 to 50°C (32 to 122°F)
Relative humidity		35 to 85%, No condensation
Weight		Approx. 700 g (excluding fi ttings)
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.
^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.