Introduction
The ThermokLogger-4A is designed to provide an affordable and easy-to-use differential temperature controller for solar heating systems. It is a four channel 10K thermistor display and data logger with programmable solid state relay outputs.
The ThermokLogger-4A records directly to a Secure Digital (SD™) card to provide convenient data downloads. To use the recorded data, simply insert the SD™; card into a card reader attached to a USB port on your computer (Windows, Macintosh and Linux). To view and graph the data, click on the spreadsheet corresponding to the day of interest. Practically any spreadsheet program can be used to view, graph, and analyze your data.
Applications
The ThermokLogger can be used in both Solar Hot Water and Solar Hot Air configurations. below are some diagrams illustrating these applications.
Live Internet Data
APRS World offers our World Data service free for our customers. Using an optional internet gateway module, our products can send live data to our hosted data service. Using your web browser you can view live and historical performance data and graphs. This allows your customer to see how their system is performing and allows you to troubleshoot the system without going on-site. See a sample live site.
Specifications
| Measurement Inputs |
|---|
|
ThermokLogger-4A 4 x 10K Thermistor Typically measure -40°C to 150°C (-40°F to 302°F) Screw terminals and RJ-45 wired in parallel |
|
ThermokLogger-4K 4 x K-type Thermocouple Inputs Typically measure 0°C to 1024°C (32°F to 1875°F) Screw terminals |
|
Optional Pulse Counter Screw terminals |
| User Interface |
| 16x2 Character LCD, backlit |
| Three push buttons |
| Temperatures update once per second |
| Relay / Alarm status visible |
| Logging |
| Secure Digital (SD™) card or Multi Media Card™ |
| Logs at 10 to 16,000 second intervals |
| Date and Time stamped measurements |
| Data files in Comma Separated Vertical (CSV) |
| One data file per day |
| Includes 2 gigabyte Secure Digital™ card |
| Supports 2 gigabyte or smaller cards |
| Power |
| 8 to 32 volts DC 2.1x5.5mm coaxial connector or 2 position screw terminal |
| Requires external power |
| Relay / Alarm Outputs |
| ThermokLogger-4A 2 x Solid state DC relay |
| ThermokLogger-4K 1 x Solid state DC relay |
| Independently programmable for: Differential Control On above temperature set point Off above temperature set point Always On Always Off |
| RS-232 Communications |
| ASCII or binary data, selectable |
| Screw terminal, 4 position |
| Data compatible with our World Data internet service |
| 9600 to 57600 baud |
| Can enable / disable Morningstar Tri-Star based on temperature |
| Modbus RTU Support |
| Physical |
| Mounts in double gang electrical box or panel |
| 3.7cm (1.45”) deep |
ThermokLogger Configurations:
The ThermokLogger is available in two configurations - 4-A and 4-K. ThermokLogger 4-K is available by special order only.
| ThermokLogger-4A | ThermokLogger-4K |
|---|---|
|
|
Pricing and Purchasing
Now you can purchase this product directly through our sister website:
ThermokLogger-4A
$280.00 USD
ThermokLogger-4A module only. Provided with four #6-32 machine screws and KL nuts. Packaged in pink anti-static bubble bag. No accessories provided.
Includes
- 4 x thermistor Inputs (0 to 5 volt)
- 1 x counter input (0 to 5 volt)
- 2 x relay outputs (~5 amps DC)
- Screw terminal and RJ-45 sensor inputs
- APRS6604 Secure Digital (SD™) card, 512 megabyte, industrial, -40°C to 85°C
Thermistor, NTC, 10k, #6 ring terminal, 152 mm (6 in) long
$4.00 USD
10k ring terminal thermistor. Manufactured by Ametherm as part number PANR 103395-408. A data sheet is available.
ThermokLogger-4K
$340.00 USD
The ThermokLogger-4K is designed for high temperature applications. Standard K-type thermocouples are used to measure temperatures in the range of 0 to 1024°C. Due to the very wide input temperature range, the accuracy of the measurements is relatively low, +8°C worst case. Special Order only.
ThermokLogger-4K module only. Provided with four #6-32 machine screws and KL nuts. Packaged in pink anti-static bubble bag. No accessories provided.
Includes:
- 4 x K-type Thermocouple Inputs (0 to 1024°C)
- 1 x Counter Input (0 to 5 volt)
- 1 x Relay Outputs (~5 amps DC)
- APRS6604 Secure Digital (SD™) card, 512 megabyte, industrial, -40°C to 85°C
ThermokLogger Accessories and Replacement Parts
RJ-45 breakout board to screw terminals
$12.00 USD
RJ-45 breakout board to screw terminals.
Discounts available when ordering in quantity: 10% for quantities of 100 or more and 20% for quantities of 500 or more.
RJ-45 breakout board to screw terminals, with DIN rail clips
$15.00 USD
RJ-45 breakout board to screw terminals. Includes feet and screws for attaching to standard 35 mm DIN rail. A #2 phillips (+) screwdriver is required to assemble. DIN rail not included.
Note: Does not come with DIN feet attached. Assembly required.
Discounts available when ordering in quantity: 10% for quantities of 100 or more and 20% for quantities of 500 or more.
Secure Digital (SD) card, 512MB, industrial, -40°C to 85°C
$36.80 USD
512 megabyte industrial Secure Digital (SD™) memory card for use with our data loggers. Rated for -40°C to 85°C. It incorporates advanced error leveling and automatic error detection and correction.
Secure Digital (SD™) card reader, USB
$15.00 USD
This device allows a computer with a USB port to access the data stored on a Secure Digital (SD™) or Multi-Media Card (MMC). Compatible with Windows, Macintosh and Linux.
AC adapter, North American, 9 VDC, 5 watts
$10.00 USD
AC to DC switching power supply. Energy Star compliant. Slim style. 9 VDC, 5 watts output.