Temperature Data Logger – DATALOG-804
₹16,800 – ₹50,400
Prices are inclusive of Delivery Charges.
DATALOG-804 – 8 Channel Temperature/Process Data Logger.
Libratherm offers Microcontroller-based Temperature / Process Data Logger Model DATALOG-804 which is designed for continuous, simultaneous, and very accurate monitoring and logging of temperature or process values at a maximum of 8 different locations. The logged data are stored in the internal memory in real-time and date. The logged data can also be monitored in the online mode on the PC screen and can also be downloaded to the PC in the offline mode. The facility is also available through the additional serial port to directly print the logged or stored data with real-time/date at the programmable PRINT INTERVAL on EPSON or equivalent Serial Dot Matrix printer.
The Model accepts universal input from standard thermocouples or RTD(Pt-100)/3 wire sensors and voltage or current signals. The type of input for each channel is user-selectable from the keyboard, i.e. all 8 channels can be selected for different types of inputs. Datalog-804 incorporates 16 bit ADC and offers 5 digits display having the range of 0 to 9999 counts or -9999 to +9999 counts. Such a wide display range makes it possible to display the temperature or process value with the highest degree of accuracy and resolution.
Other hardware features include 2 nos. of common for all channels high or low relay outputs, 16 nos. of transistor drivers – available to the user on 20 pin FRC connector and cable. FRC compatible 8 channel relay cards are also available. The respective front panel dual-color LEDs show the status of each channel – whether it is High (Red) or Low (green) when compared to their respective set values.
Standard features include programmable display SCAN time, channel SKIP, and HOLD facility with a manual increment of the channel number using a front panel membrane keyboard.
Key Features:
- Highly accurate and sturdy in operation.
- Monitor and Log Temperature, Pressure, Humidity or any such process parameters.
- Incorporates 16 bit ADC with 5 digit display.
- Built in real time clock and Memory for data storage up to 1 year.
- Accepts maximum 8 DC inputs from thermocouple, RTD, Voltage and Current Signals.
- Two common Relays and 16 independent relay drivers for High/Low Alarms.
- Front panel dual colour LED indications for Alarm status.
- Serial interface for Printer Interface and / or Computer interface.
- User friendly Computer software to integrate max. 8 Datalog-804 for max. 64 channels.
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) |
Input & Range Selection
| Code | Input | Range |
|---|---|---|
| A1 | Factory set to 8 universal inputs marked (*) below : A3,A4,A5,A6,A7,A16,A17 & A18 (U1) | |
| A2 | Factory set to 4 user selectable inputs marked (^) below : A14,A15,A16 (U2) | |
| A3 | J type : Fe/Con thermocouple (*) | 0 to 760 °C |
| A4 | K type : Cr/Al thermocouple (*) | 0 to 1372 °C |
| A5 | R type : Pt/PtRh13% thermocouple (*) | 0 to 1768 °C |
| A6 | S type : Pt/PtRh10% - thermocouple (*) | 0 to 1768 °C |
| A7 | B type : Pt30%Rh/Pt6%Rh thermocouple | 200 to 1820 °C |
| A8 | T type : Cu/Con thermocouple (*) | 0 to 350 °C |
| A9 | E type : NiCr/CuNi thermocouple(*) | 0 to 900 °C |
| A10 | C type : W5%Re/W26%Re thermocouple | 0 to 2300 °C |
| A11 | D type : W3%Re/W25%Re thermocouple | 0 to 2300 °C |
| A12 | G type : W/W26%Re thermocouple | 0 to 2000 °C |
| A13 | N type : Ni-Cr-Si/Ni-Si-Mg (*) | 0 to 1300 °C |
| A14 | Pt-100 (Alpha = 0.00385) DIN 43760 (^) | -200.0 to 400.0 °C |
| A15 | Pt-100 (Alpha = 0.00385) DIN 43760 (^) | -100.0 to 200.0 °C |
| A16 | 4-20mA (^)(*) | -9999 to +9999 uom |
| A17 | 0-1VDC (*) | -9999 to +9999 uom |
| A18 | 0-5VDC (*) | -9999 to +9999 uom |
Ordering Information
| Sr. No. | Model | Description | Part No. |
|---|---|---|---|
| 1.1 | DATALOG -804-U1 | Input: Universal type 1 – Thermocouple types J,K,R,S,T,E,N and 4-20mA, 0-5V Output: 2 Common Relays Serial Interface: RS-232 for Printer Interface | 3381-1 |
| 1.2 | DATALOG -804-U1 | Input: Universal type 1 – Thermocouple types J,K,R,S,T,E,N and 4-20mA, 0-5V Output: 2 Common Relays Relay Drivers: 16 transistor output to drive external 16 channel relay cards Serial Interface: RS-232 for Printer Interface | 3381-2 |
| 1.3 | DATALOG -804-U1 | Input: Universal type 1 – Thermocouple types J,K,R,S,T,E,N and 4-20mA, 0-5V Output: 2 Common Relays Serial Interface : RS-485 for Computer Interface | 3381-3 |
| 1.4 | DATALOG -804-U1 | Input: Universal type 1 – Thermocouple types J,K,R,S,T,E,N and 4-20mA, 0-5V Output: 2 Common Relays Relay Drivers: 16 transistor output to drive external 16 channel relay cards Serial Interface : RS-485 for Computer Interface | 3381-4 |
| 2.1 | DATALOG -804-U2 | Input: Universal type 2: RTD (Pt-100), 4-20mA Output: 2 Common Relays Serial Interface : RS-232 for Printer Interface | 3382-1 |
| 2.2 | DATALOG -804-U2 | Input: Universal type 2: RTD (Pt-100), 4-20mA, Output: 2 Common Relays Relay Drivers: 16 transistor output to drive external 16 channel relay card Serial Interface : RS-232 for Printer Interface | 3382-2 |
| 2.3 | DATALOG -804-U2 | Input: Universal type 2:RTD (Pt-100), 4-20mA, Output: 2 Common Relays Serial Interface : RS-485 for Computer Interface | 3382-3 |
| 2.4 | DATALOG -804-U2 | Input: Universal type 2 – RTD (Pt-100), 4-20mA, Output: 2 Common Relays Relay Drivers: 16 transistor output to drive external 16 channel relay card Serial Interface : RS-485 for Computer Interface | 3382-4 |
| 3.1 | DATALOG -804-F | Input: K type thermocouple + 4-20mA as fixed input for all 8 channels. Output: 2 Common Relays Serial Interface : RS-232 for Printer Interface | 3383-1 |
| 3.2 | DATALOG -804-F | Input: K type thermocouple + 4-20mA as fixed input for all 8 channels. Output: 2 Common Relays Relay Drivers: 16 transistor output to drive external 16 channel relay card Serial Interface : RS-232 for Printer Interface | 3383-2 |
| 3.3 | DATALOG -804-F | Input: K type thermocouple + 4-20mA as fixed input for all 8 channels. Output: 2 Common Relays Serial Interface : RS-485 for Computer Interface | 3383-3 |
| 3.4 | DATALOG -804-F | Input: K type thermocouple + 4-20mA as fixed input for all 8 channels. Output: 2 Common Relays Relay Drivers: 16 transistor output to drive external 16 channel relay card Serial Interface : RS-485 for Computer Interface | 3383-4 |
| 4.1 | MSI-RLY-8 | 8 channel relay card – compatible with DATALOG-804 | 3384-1 |
| 4.2 | EDATALOG-804 | Computer software for DATALOG-804 with RS-485 to USB converter (Version 1.19.8) | 3384-2 |
| 4.3 | EDATALOG-804-CFR | Computer software (21 CFR Part 11 compliant) for DATALOG- 804 with RS-485 to USB converter (Version 1.19.9) | 3384-3 |
