Temperature Data Logger – DATALOG-804

Technical Specifications :

Parameters	Description
No. Of channels	8 nos.
Universal Input type 1	Thermocouple J, K, R, S, T,E,N (4-20)mA, (0-5)V
Universal Input type 2	RTD(Pt-100), (4-20)mA
Fixed Input types	Thermocouple J, K, R, S, T,E,N (4-20)mA, (0-1)V, (0-5)V or RTD (Pt-100) – user to specify same for all the channels or different for different channels.
Input Selection	Factory Set for each channel or User selectable for each channel (Model dependent – please refer to the ordering information)
Range	0 to 9999 or -9999 to +9999 UOM – Subject to the specified input (Refer the Input and range selection table)
Accuracy	Better than ± 0.1 ⁰C , ± 1 ⁰C (Software linearized for temperature)
Display	5 digit each 0.5” 7-segment Red /Green LED to indicate Process, Alarm values, and Real-Time Clock and 2 digit 0.3” 7-segment Red LED for channel no.
Scan Rate	1 to 99 sec (programmable through front panel keyboard)
Data Storage Interval	1 to 99 minutes (user-programmable).
Data Storage	8000 records. (512KB).
Print Interval	1 to 99 minutes (User programmable)
Skip/Hold Facility	Available through key board in configuration mode
High / Low Alarm	Common or individual Settable using key pad
Common Relay output	2 nos. potential free change over contacts (1 each for high and low output but common for all the channels)
Alarms Outputs (Optional)	8 x 2 open collector outputs to drive external relay cards.
LED Indication	8 dual colour LED’s in the front indicating status of each alarm output.
Serial Interface	RS485 MODBUS RTU protocol in slave mode for PC interface or RS232 serial port for dot matrix printer interface (any one is useable at a time)
Supply	90V - 260VAC VAC ± 10% (10VA), 50/60Hz or 24VDC/AC @ 200mA
Enclosure	Plastic or Metallic with ABS bezel and polycarbonate front.
Size	96 x 96 x 160 mm
Size of Relay Card RLY-8	190 L x 120 W x 75 D mm (35 mm DIN rail mount)