Specifications

Section 3. Overview
3-11
present; hydrogen gas generated by the batteries may build up to an explosive
concentration.
3.1.8.2 Protection from Voltage Transients
Read more! See Section 7 Grounding.
The CR1000 must be grounded to minimize the risk of damage by voltage
transients associated with power surges and lightning induced transients. Earth
grounding is required to form a complete circuit for voltage clamping devices
internal to the CR1000.
3.1.8.3 Calibration
Read more! See Section 0 Self-Calibration.
The CR1000 uses an internal voltage reference to routinely calibrate itself. To
maintain electrical specifications, Campbell Scientific recommends factory
recalibration every two years. For calibration services, contact Campbell
Scientific to obtain a Return Materials Authorization (RMA) prior to shipping.
3.1.8.4 Internal Battery
Misuse of the lithium battery or installing it improperly can
cause severe injury. Fire, explosion, and severe burn
hazard! Do not recharge, disassemble, heat above 100°C
(212°F), solder directly to the cell, incinerate, nor expose
contents to water. Dispose of spent lithium batteries
properly.
The CR1000 contains a lithium battery that operates the clock and SRAM
when the CR1000 is not externally powered. In a CR1000 stored at room
temperature, the lithium battery should last approximately 10 years (less at
temperature extremes). In installations where the CR1000 is powered most of
the time, the lithium cell should last much longer. Lithium battery voltage can
be monitored from the CR1000 Status Table. Operating range of the battery is
2.7 to 3.6 VDC. Replace the battery when the voltage is below 2.7 VDC.
3.2 PC Support Software
Read more! See Section 16 Support Software.
Several datalogger support software products for Windows are available.
Software for datalogger setup and simple applications, PC200W and Short Cut,
are available at no cost at www.campbellsci.com
. For more complex
programming, telecommunications, networking, and reporting features, full-
featured products are available from Campbell Scientific.
1. PC200W Starter Software is available at no charge at
www.campbellsci.com
. It supports a transparent RS-232 connection
between PC and CR1000, and includes Short Cut for creating CR1000
programs. Tools for setting the datalogger clock, sending programs,
monitoring sensors, and on-site viewing and collection of data are also
included.
CAUTION