LPTH-1 SITE-LOG Thermistor and Temperature Data Logger
SITE-LOG LPTH-1 data logger is a 7-channel thermistors plus 1-channel temperature, battery powered, stand-alone data logger, with storage up to 8 MB of data in non-volatile flash memory. It can record resistance and is best for 10K NTC thermistors.
Plug & Play USB port and versatile custom equation simplify communications and engineering unit conversion. 16-bit ADC makes it well suited for science and laboratory applications where precise and accurate measurements are critical.
Simply plug the logger to computer's USB port, and the software automatically recognizes it and handles the configuration, downloading, graph viewing and more...
Features:
- 16-bit analog-to-digital converter
- 8 megabyte memory size
- 7 external thermistor channels plus internal thermistor for ambient temperature.
- Both USB and serial interfaces with auto baud rate of up to 115 kbps
- Over 10 years of battery life
- Powerful software for configuration, downloading, plotting, analysis and alarm reporting
- Configurable alarm control/excitation controls
- Wide sampling interval selections (20 milliseconds to 12 hours)
- Rugged aluminum enclosure
- Coated PCB to protect against moisture, corrosion and mildew.
Documents:
SITE-LOG Thermistor Data Logger (LPTH-1) Specifications
Want to remotely access this data logger? Check out DSS-2 Site USB Device Server
| General | |
|---|---|
| Product Name | SITE-LOG Thermistor Data Logger |
| Model | LPTH-1 |
| Inputs | |
| Connection | Plugable terminal block for seven external channels, alarm outputs |
| Channels | One on-board thermistor temperature (-40°C ~ 70°C, -40°F ~ 158°F) Seven external thermistors/resistors |
| Resolution | 0.0018% |
| Accuracy | +/- 0.2°C (0°C ~ 70°C, 32°F ~ 158°F) ( for 10K NTC thermistor, does not include thermistor probe error) |
| Alarms | |
| Channel Alarms | Two editable alarm thresholds per channel. |
| Alarm Output | ALARM1 & A2/E terminal strips can be configured as alarm outputs. Alarm-On: MOSFET(N-Channel) switch on Alarm-Off: MOSFET(N-Channel) switch off Max Power: 200mA @ 24VDC |
| Alarm-On Delay | Programmable 0 - 10 minutes delay with 1-minute increment. |
| Alarm Indicator | On-board LED becomes red when in alarm condition. |
| On-board Memory | |
| Size | 8 Mega bytes (4MB readings). |
| Data Retention | Over 20 years. |
| Sampling | |
| Sampling Interval | 20 milliseconds to 12 hours programmable. (external power supply required if interval less than one second) |
| Logging Mode | Stop recording or FIFO when memory is full. |
| Logging Activation | Programmable instant, start delay or field push button activation. |
| Communications | |
| Interface | USB (Mini-USB-B) (USB-A-mini USB-B Cable included) AUX(RJ11) for TTL level RS232 communications. |
| Baud Rate | Auto-detect baud rate from 2400 to 115200 bps on both USB and AUX. |
| Battery | |
| Power | Built-in 3.6V Lithium Battery. |
| Battery Life | 10 years based on 1 minute sampling interval. |
| Software | |
| SiteView (Sold separately) | Configuration, downloading, plotting, real-time view, custom calibration and custom equation. |
| Software Requirement | Computer with 1.0 GHz or faster processor 1 GB Memory or higher 10 GB of available hard-drive space or higher Windows XP with SP2 or later, Vista, Window 7,8,10 At least one USB port or one COM port. |
| Physical | |
| Material | Aluminum enclosure. |
| PCB Treatment | Conformal coating. |
| Dimension | 88 X 64.2 X 24 mm (3.46 X 2.53 X 0.95 inches). |
| Weight | 200g |
| Mounting | Probe/wall-mount holes for hanging/mounting. |
| Others | |
| LED Indicator | Tri-Color LED: (can be disabled for power saving) Normal Sampling: light green when sampling. Alarm: red when sampling. Low Battery: amber when sampling. |
| Excitation Control | A2/E terminal strip can be configured as excitation control output for driving the power of connected devices. Warm-up delay interval settings: 10 to 240 seconds with 10-second increment. |
| Operating Environment | -40 ~ +70 °C (-40 °F ~ 158 °F), 0 ~ 95% RH non-condensing. |
| Clock Accuracy | ±1 mintue per month. |
| Approval | CE, FCC |
Logger Memory Capacity
| Sampling Interval | Enabled Channel | Logging Capacity |
|---|---|---|
| 1 minute | 1 | 8 years |
| 1 minute | 2 | 4 years |
| 1 minute | 8 | 1 year |
| 10 seconds | 1 | 485 days |
| 10 seconds | 2 | 242 days |
| 10 seconds | 8 | 60 days |
| 1 second | 1 | 48 days |
| 1 second | 2 | 24 days |
| 1 second | 8 | 6 days |
| 100 milliseconds | 1 | 4 days |
| 100 milliseconds | 2 | 2 days |
| 100 milliseconds | 8 | 14.4 hours |
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