LI-COR LI-1500 User manual

LI-1500 Light Sensor Logger
Intuitive, menu-driven interface
The menu-driven interface is easy to use. Attach
your LI-COR light sensor(s) to the three BNC con-
nectors. Log manually or use menus to set up one-time,
daily, or continual measurement routines. Sampling rates
and logging intervals are user-selectable.
Fast measurements (up to 500 Hz)
Use the LI-1500 with one sensor to sample and log
measurements up to 500 Hz – fast enough to meas-
ure the flicker rate of fluorescent, iridescent, incandescent,
and LED light bulbs. Graph these large data sets on your
computer using LI-COR’s FV7x00 software. Also view real-
time light measurements, GPS data, and other variables on
the eight-line display screen. Sample and log up to 20 Hz
with two or three sensors at once.
Global Positioning System (optional)
The LI-1500 features an optional global pos-
itioning system (GPS) for recording the location of
measurements. The GPS facilitates repeated visits to the
same location for tracking light levels over time. Log GPS
data independently or with light data.
Large memory capacity (1 GB)
With one gigabyte of flash memory, the LI-1500
stores a large amount of data on an internal SD
card. Also store configurations and up to 100 sensor-specific
calibration coefficients for later use. Enter the calibration
coefficient (multiplier) and date of last calibration just once.
When attached to a computer, the LI-1500 acts as a mass-
storage device with a simple drag-and-drop file system. Trans-
fer logged data to a computer with the included USB cable.
Data are formatted for easy import into widely used spread-
sheet and database software. Also transfer configurations and
sensor calibration data to a computer, and then share with
other LI-1500 units.
Weather-resistant, handheld
operation
The LI-1500 features a rugged housing and compact design
suitable for handheld outdoor use. The LI-1500 is powered
by four AA batteries, providing over 80 hours of operation
with typical usage, or 30 hours with the GPS option turned
on. Power can also be supplied from an AC wall outlet with
the provided USB AC to DC adapter. AC adapter plugs for
worldwide use are included.
Connects to LI-COR terrestrial and
underwater light sensors
Use the LI-1500 with LI-COR sensors to log pho-
tosynthetically active radiation (PAR), global solar radiation,
and light (the visible spectrum). Connect up to three
sensors at the same time. For instance, use two PAR sensors
to measure incident radiation above and below a plant can-
opy. You can also measure PAR along transects under a
plant canopy.
The LI-1500 features a built-in math function for measuring
vertical attenuation using two underwater PAR sensors. The
three input ports also allow for the measurement of incident
PAR above water while measuring simultaneous upwelling
and downwelling PAR below water.
Features
www.licor.com/1500

Current Inputs: 3 BNC connectors for LI-COR sensors
Output Channels:
Light
Math Channels: 8 math channels (addition, subtraction,
multiplication, division, natural logarithm, integration,
daily integration, attenuation)
GPS (optional)
Prompt
Battery Voltage
Input Channel Specifications:
Frequency Rejection: >70dB at 50 or 60 Hz (1 input chan-
nel @ sampling rates of 1, 2, 5, 10, 20 Hz)
Current Accuracy: ±0.3% of full scale reading @25°C
Signal Ranges:
Range # Current Range Resolution (Typical)
1 0 – 0.250 µA (micro-amps) 0.0305 nA (nano-amps)
2 0 – 2.50 µA (micro-amps) 0.1525 nA (nano-amps)
3 0 – 25 µA (micro-amps) 1.525 nA (nano-amps)
4 0 – 250 µA (micro-amps) 15.25 nA (nano-amps)
Table 1-1. Signal Ranges.
Raw Mode (1 – 500 Hz): Selectable Range
Standard Modes (Continual, Manual, Daily, One Time):
Auto range for total sampling rate ≤ 3 Hz (e.g. 1 Hz
sampling on 3 input channels)
Fixed range (selectable) for total sampling rates > 3 Hz
(e.g. 2 Hz sampling on 2 input channels)
Sampling Rates:
Standard Modes: 0.01 Hz, 0.1 Hz, 1 Hz, 2 Hz, 5 Hz, 10 Hz,
20 Hz
Raw Mode: 1–500 Hz (1 Hz through 500 Hz in whole
number increments)
Logging Rates:
Standard Modes Sampling: Every Sample, 100 msec, 200
msec, 500 msec, 1 sec, 5 sec, 10 sec, 15 sec, 30 sec, 60
sec, 100 sec, 5 min, 15 min, 30 min, 1 hr, 2 hr, 3 hr, 6
hr, 12 hr, 24 hr
Raw Mode Sampling: Every sample (1–500 Hz)
Averaging:
Raw Mode Sampling: No averaging
Standard Modes Sampling: averaging windows depend on
sampling rate (see table 1-2)
Sampling
Rate Averaging Windows Available
0.01 Hz 5 min, 15 min, 30 min, 1 hr, 2 hr, 3 hr, 6 hr, 12 hr, 24 hr
0.1 Hz 15 sec, 30 sec, 60 sec, 100 sec, 5 min, 15 min, 30 min, 1
hr, 2 hr, 3 hr
1 Hz 5 sec, 10 sec, 15 sec, 30 sec, 60 sec, 100 sec, 5 min, 15 min
2 Hz 1 sec, 5 sec, 10 sec, 15 sec, 30 sec, 60 sec, 100 sec, 5 min
5 Hz 500msec,1sec,5sec,10sec,15sec,30sec,60sec,100sec
10 Hz 200 msec, 500 msec, 1 sec, 5 sec, 10 sec, 15 sec, 30 sec,
60 sec, 100 sec
20 Hz 100 msec, 200 msec, 500 msec, 1 sec, 5 sec, 10 sec, 15
sec, 30 sec, 60 sec
Table 1-2. Averaging windows by sampling rate.
Display: 128 x 64 graphics display
Real-Time Clock:
Year, Month, Day, Hour, Minute, Seconds
Accuracy of ±3 minutes per month
Data Storage Capacity: 1 GB (FAT16 file system)
Communications: USB (as mass storage device)
Global Positioning System (Option) – GPS RADIONOVA®
RF Antenna Module:
Horizontal position accuracy: 2.5 m CEP (50% Circular
Error Probability, Open-Sky, 24hr Static, good view of
the sky).
Maximum position update rate: 1 Hz.
Power Supply Options:
4 “AA” size batteries
USB, AC–DC power adapter
USB, external battery power pack (customer supplied)
Battery Life:
80 hours life (typical usage of 1 Hz sampling rate and log-
ging rate)
30 hours life (typical usage with GPS option on)
Environmental Conditions:
Operating Temperature Range: -20 to 50°C
Humidity Range: 0 to 95% RH (non-condensing con-
ditions)
Storage Temperature Range: -40 to 65°C
Size: 20.9 x 9.8 x 3.5 cm (8.2" x 3.9" x 1.4")
Weight: 0.454 kg (1.0 lb) with batteries
LI-COR Biosciences – Global Headquarters
4647 Superior Street • Lincoln, Nebraska 68504
Phone: [phone] • Toll free: 800-447-3576 • Fax: [phone]
[e-mail] • [e-mail] • www.licor.com/env
Regional Offices
LI-COR GmbH, Germany
Serving Andorra, Albania, Cyprus, Estonia, Germany, Iceland, Latvia, Lithuania,
Liechtenstein, Malta, Moldova, Monaco, San Marino, Ukraine, and Vatican City.
LI-COR Biosciences GmbH
Siemensstraβe 25A • 61352 Bad Homburg
Germany
Phone: [phone] • Fax: [phone]
[e-mail] • [e-mail]
LI-COR Ltd., United Kingdom
Serving Denmark, Finland, Ireland, Norway, Sweden, and UK.
LI-COR Biosciences UK Ltd.
St. John’s Innovation Centre • Cowley Road • Cambridge • CB4 0WS
United Kingdom
Phone: [phone] • Fax: [phone]
[e-mail] • [e-mail]
LI-COR Distributor Network:
www.licor.com/env/distributors
988-14747
Rev 1, 7/15
LI-1500 Specifications
LI-1500 Ordering Options
The LI-1500 is available with or without GPS. The underwater package includes an underwater lowering frame, and also comes with a
larger case that will hold the LI-1500, the lowering frame, and LI-COR underwater sensors and cables.