RD850 Series Paperless Recorders / Data Acquisition Systems

• 3, 4 or 6 Isolated Analog Inputs Plus 6 Computation Channels
• 16 Bit Resolution and High Accuracy
• 5-inch Bright LCD Bar Graph, Graphic, Digital, Date/time Display with Touchscreen Control
• Record Data on 3 1/2 inch Disks or PCMCIA Memory Cards
• Windows Based Software (Not Included)
• Math Functions Include +, - , x , ÷ , Square Root, Logarithms, Totalization, Maximum/Minimum Moving Average, Timed Average, Quadratics, and a 12-element Constant Table
• 5-digit Dynamic Channel Scaling
• Independent Sampling Rates for Each Channel
• Set Up and Automatically Search Data Files for Signal Values, Alarms, or Date/Time Parameters
• Pre- and Post Trigger Event Information
• 60 Internal Alarms
• 5 Alarms (High, Low, and Rate of Change) per Channel
• 6 Form C Relay Contact Outputs, 3 Digital Inputs
• RS-485 Isolated Multi-drop or RS-232 Bi-directional Communication Port

SPECIFICATIONS:

OPERATING
Input Signals:
Thermocouple: J,K,T,E,R,S,B,C,N(Nicrosil-Nisil), and Nickel/Nickel-Moly
RTD(OPTION): 10 Ohm Cu,100 Ohm Pt 385, 100 Ohm Pt 392, 200 Ohm Pt 385, 200 Ohm Pt 392, 120 Ohm Ni 385,120 Ohm Ni 392
DC Voltage: Linear and square root programmable to 10V (100mV,1V, and 10V ranges)
DC Current: 4 to 20mA,10 to 50mA
RPM: 5 to 250,000 RPM, 1 to 10,000 Hz (0.1 sec to 10 min). Dry Contact
Input Accuracy:
Thermocouple: ±1°C for J, K, T, E, N (Nicrosil-Nisil), and Nickel/Nickel-Moly; ±3°C for R, S and C; ±4°C for B RTD: ±0.5°C
Voltage: ±0.05% of programming range
Current: ±0.25% using internal shunts; ±0.1% with external (high accuracy shunt)
Input Resolution: 0.006% of full scale
Input Impedance:>10 megaohms on 100mV,1V Ranges, ~50K on 10 Volt Range
Input Capacity: up to 6 direct; 12 total
Scan Rate: All points scanned every 250ms (3 to 6 inputs)
Common Mode Voltage: 250 Vdc or peak Vac
Common Mode Noise Rejection: >100 dB, 50/60 Hz
Normal Mode Noise Rejection: >50 dB, 50/60 Hz
EMC Compliance: Meets or exceeds the requirements of 89/336/EEC. IEC 1010 conformance, IEC 811 Electromagnetic, (CE)

To Order  (Specify Model Number)
Model No.- 31/2 DISK	Model No.- PCMCIA Slot	Input Type	# of Inputs	Price
RD853-T	RD843-T	DC V I T/C	3	$1824
RD854-T	RD844-T	DC V I T/C	4	1924
RD856-T	RD846-T	DC V I T/C	6	2323
RD853-R	RD843-R	DC V I T/C RTD	3	1924
RD854-R	RD844-R	DC V I T/C RTD	4	2024
RD856-R	RD846-R	DC V I T/C RTD	6	2523
RD853-P	RD843-P	PULSE-RPM/FREQ/TIME	3	1824
RD856-P	RD846-P	PULSE-RPM/FREQ/TIME	6	2323
Ordering Examples: RD853-T 3 1/2 disk with 3 Inputs DC V I T/C disks not included. Price: $1824 RD856-R-AL-SW six channel recorder with DC, V I, T/C, or RTD Inputs with 6 relay contacts, OMEGASOFT® Windows based software. Price: $2523 + $199 + $99 = $2821. To Order Recorder With PCMCIA Slot Rather than disk drive, Order RD840 Series Instead of RD850 Series. Ordering Examples: RD844-T PCMCIA memory with 4 inputs DC V I T/C flash memory card and reader not included. Price: $1924.





Add Suffix	Description	Price
-TP	24 Vdc, 120 ma Isolated transmitter power supply	$155
-512	512kbyte ram (128K is standard) - Internal	499
-AL	6 form C relay contacts 1 amp @ 250 Vac or 26 Vdc	199
-SW	OMEGASOFT® Windows Based Software	199
-RS485	Isolated RS-485 communications	199
-RS232C	ESD protected RS-232 communications	129
RD840-2MC	PCMCIA Flash Memory Card 2MB - Model RD840 Only	225
RD840-4MC	PCMCIA Flash Memory Card 4MB - Model RD840 Only	350
RD840-CR	Card Reader with Cable and Software	299

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U.S.A. and Canada International Callers; Sales & Service; 203.359.1660

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