Resistance Temperature Detector Data Logger
The SITE-LOG LRTD is a 4-channel, battery powered, standalone RTD data logger. The logger records the ambient temperature and four resistance temperature detectors (RTDs). Data is stored in 8MB non-volatile flash memory for later retrieval. Different models are available for PT100, PT500 and PT1000 sensor probes.
Its versatile equations simplify engineering unit conversion. Plug & Play USB port makes the communication easy and Its aluminum enclosure makes it excellent in the harshest industrial environment.
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:
- 4ch
- 16-bit analog-to-digital converter
- 8 megabyte memory size
- Built-in equations for TCR 0.00385 and 0.00392. Custom equations support any other special RTD sensors.
- Both USB and serial interfaces with auto baud rate of up to 115200 bps
- 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.
- ration, 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.
Specification:
| Product Name | SITE-LOG Resistance Temperature Detector Data Logger |
| Model | LRTD-1 (for PT100) LRTD-2 (for PT500) LRTD-3 (for PT1000) |
| Inputs | |
|---|---|
| Connection | Plugable terminal block for four external channels, excitation controls and alarm outputs |
| Channels | One on-board thermistor temperature (-40°C ~ 70°C, -40°F ~ 158°F) Four external RTD channels: PT100: 20 ~ 400 Ohms (-200 °C ~ 850°C) PT200: 90 ~ 1600 Ohms (-200 °C ~ 630°C) PT1000: 185 ~ 3200 Ohms (-200 °C ~ 630°C) Built-in equations(TCR 0.00385 and TCR 0.00392) |
| Resolution | 0.0018% (PT100: 0.02°C, PT500,1000: 0.015°C) |
| Accuracy | Thermistor: ±0.2°C(0°C ~ 70°C, 32°F ~ 158°F) RTD Channels: ±0.015% LRTD-1: ±0.16°C @25°C LRTD-2: ±0.13°C @25°C LRTD-3: ±0.13°C @25°C |
| 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 five seconds) |
| 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 | 4 | 2 year |
| 10 seconds | 1 | 485 days |
| 10 seconds | 2 | 242 days |
| 10 seconds | 4 | 141 days |
| 1 second | 1 | 48 days |
| 1 second | 2 | 24 days |
| 1 second | 4 | 12 days |
| 100 milliseconds | 1 | 4 days 20 hours |
| 100 milliseconds | 2 | 2 days 10 hours |
| 100 milliseconds | 4 | 1 day 5 hours |
Next Steps...
Please contact us if you need more information/ details.