1.877.352.9158  (Price in US$)

Welcome Guest!   

My Account  |  Cart Contents  |  Checkout

10-year battery life
USB, serial ports
20 milliseconds - 12 hours intervals
Rugged aluminum enclosure
Quick Links To Products

SITE-LOG LFM-1, LFMB-1 (high accuracy)

7-channel voltage and current data logger

SITE-LOG Logger SITE-LOG LFM-1/LFMB-1 data logger is a 7-channel, battery powered, stand-alone voltage and current data logger, with storage up to 4 MB of data in non-volatile flash memory. Input signals can be from sensors, transducers, transmitters or any other sources.

Its on-board temperature channel provides environment monitoring and temperature compensation.

Its aluminum enclosure makes it excellent in the harshest industrial environment.

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...

  • 16-bit analog-to-digital converter
  • Temperature Compensation
  • 4 megabyte memory size
  • 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 controls/excitation controls
  • Wide sampling interval selections (20 milliseconds to 12 hours)
  • Rugged aluminum enclosure
  • Coated PCB to protect against moisture, corrosion and mildew.
Logger Memory Capacity
Sampling Interval Enabled Channel Logging Capacity
1 minute 1 3.98 years
1 minute 2 727 days
1 minute 8 181 days
10 seconds 1 242 days
10 seconds 2 121 days
10 seconds 8 30 days
1 second 1 24 days
1 second 2 12 days
1 second 8 3 days
100 milliseconds 1 58 hours
100 milliseconds 2 29 hours
100 milliseconds 8 7.2 hours
7-channel voltage and current data logger
Product Name:
LFMB-1 (high accuracy)
Input Connection:
Pluggable terminal block for seven external channels, excitation controls and alarm outputs
Internal Channel:
On-board thermistor temperature (-40°C ~ 70°C, -40°F ~ 158°F)
External Chanenls:
Channel1: 20 Volt DC
Channel2: 10 Volt DC
Channel3: 5 Volt DC
Channel4: 2 Volt DC
Channel5: 4-20 mA
Channel6: 4-20 mA
Channel7: 4-20 mA
Thermistor: ±0.2°C(0°C ~ 70°C, 32°F ~ 158°F)
LFM-1 voltage channel:
±0.15% @ 25°C from 0.1V and up
±0.5% @ 25°C from 0 to 0.1V
LFM-1 4 - 20mA current channel:
±0.15% FSR @ 25°C
LFM-1 50mA current channel:
±0.15% @ 25°C from 2.5mA to 50mA
±0.5% @ 25°C from 0 to 2.5mA
LFMB-1 voltage channel:
±0.05% @ 25°C for 20V, 10V, 5V channels
±0.1% @ 25°C for 2V channel
LFMB-1 current channel: ±0.1% FSR @ 25°C
Input Impedance for voltage channels:
Over 1 MOhms
Overvoltage/overcurrent Protection:
For LFM-1: up to -3VDC ~ +40 VDC for voltage channels
up to ±100mA for current channels
For LFMB-1: up to ±40 VDC for voltage channels
up to ±100mA for current channels
Load resistor value for current channels:
12 Ohms
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
With purchase of SiteView software, SITE-LOG can report alarm status to host PC via USB, Modem or Ethernet Device Server.
Alarm-On Delay:
programmable 0 - 10 minutes delay with 1-minute increment.
Alarm Indicator:
On-board LED lights in red when in alarm condition.
On-board Memory:
4 Mega bytes (2MB readings)
Data Retention:
Over 20 years
Sampling Interval:
20 milliseconds to 12 hours user selectable.(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.
USB (Mini-USB-B) (USB-A-mini USB-B Cable included)
AUX(RJ11) for direct TTL level communications
With purchase of DeviceServer or MODEM Kit SITE-LOG can be connected to Ethernet or MODEM for remote access.
Baud Rate:
Auto-detect baud rate from 2400 to 115200 bps on both USB and AUX.
Built-in 3.6V Lithium Battery.
Battery Life:
10 years based on 1 minute sampling interval.
SiteView: (Sold separately)
Configuration, downloading, plotting, real-time view, custom calibration and custom equation.
Software Requirements:
Computer with 1.0 GHz or faster processor
256 MB Memory or higher
1.0 GB of available hard-drive space or higher
Windows XP with SP2 or later, Vista, Window 7
At least one USB port or one COM port.
Aluminum enclosure.
PCB Treatment:
Conformal coating.
88 X 64.2 X 24 mm (3.46 X 2.53 X 0.95 inches).
Probe/wall-mount holes for hanging/mounting.
LED Indicator
Tri-Color LED: (can be disabled for power saving)
Normal Sampling: 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.
SiteView Software Overview Real-Time Strip Chart Graph & Tabular Views Logger Status Window

Model Description Buy
LFM-1 SITE-LOG 7-Channel Voltage/Current Data Logger
LFMB-1 SITE-LOG 7-Channel Voltage/Current Data Logger (High Accuracy)