R3991A

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Our sales will reply to your request by email within 24 hours.

IMPORTANT NOTICE

1. You’ll receive an order information email in your inbox. (Please remember to check the spam folder if you didn’t hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Product Specification Sheet: Model R3991A

Category	Specification	Details / Value
General Information	Model Number	R3991A
	Product Name	Advanced 10-Channel Data Acquisition Module
	Product Family	R3900 Series
	Firmware Version	v2.1.5 (Field Upgradeable)
Performance Specifications	Input Channels	10 (8x Analog, 2x Digital I/O)
	ADC Resolution	24-bit
	Max Sampling Rate	100 kS/s (aggregate)
	Input Range (Analog)	±10 V, ±5 V, ±2.5 V, ±1.25 V (software selectable)
	Accuracy (A-Enhanced)	±0.02% of reading ± offset (After auto-calibration)
Connectivity & Interface	Primary Interface	A USB (USB 2.0 Hi-Speed)
	Auxiliary Interface	Ethernet (10/100 Mbps)
	Protocol Support	Modbus TCP, Custom UDP/TCP
	Isolation	500 V channel-to-bus
Electrical & Environmental	Power Supply	9 – 30 VDC or via USB
	Operating Temperature	-40°C to +85°C
	Storage Temperature	-55°C to +105°C
	Key Enhancement (A)	Added USB interface and improved noise immunity.
Regulatory Compliance	EMC/EMI	CE, FCC Class A
	Safety	UL 61010-1, EN 61326-1