|-NOTE-||An embedded CR1000M datalogger module (ordered as pn 18292) is required for every CS110 purchased; see Common Accessories section on Ordering Information page.|
|CE Compliance Standards to which Conformity Is Declared||BS EN61326:2002|
|Lightning Protection||Multi-stage transient protection on all external interfaces|
|Power Requirements||11 to 16 Vdc|
|Baud Rates||Selectable from 300 to 115.2k bps|
|ASCII Protocol||One start bit, one stop bit, eight data bits, no parity|
|Operating Relative Humidity||0 to 100% RH|
|Mounting||Vertical pipe with outer diameter of 1.91 to 6.35 cm (0.75 to 2.5 in.)|
|Dimensions||15.2 x 15.2 x 43.2 cm (6 x 6 x 17 in.)|
|Weight||4 kg (9 lb)|
|Peak Current Demand||750 mA (occurs during motor operation)|
|-NOTE-||Refer to the sensor manual for resolution, sensitivity, and noise specifications.|
|Parallel-Plate Configuration||±1% of reading + 60 V m-1 offset|
|2 m CM110 Tripod Configuration||±5% of reading + 8 V m-1 offset|
An embedded CR1000M datalogger module (ordered as p/n 18292) is required for every CS110 purchased; see Common Accessories in ordering information.
Generally, the CS110 should be run with the latest released CR1000 operating system (OS) available via "Support" on this website. However, CR1000 OS version 27.05 should NOT be downloaded to standard CS110s. OS version 27.05 was built to accommodate the ~40,000 v/m efields measured on ocean buoys. The special OS also requires a capacitor change on the CS110 panel board.
The internal CR1000M (required) can be interfaced to another data logger via the Power/SDM cable if the application requires an additional data logger.
The CR1000’s on-board programming language, CRBasic, provides data processing and analysis routines that support user control over sample (measurement) rates and setting of alarm conditions. LoggerNet Datalogger Support Software facilitates programming, communications, and data retrieval between the CS110 and a PC.
The CS110 has sealed connectors for attaching meteorological sensors and three digital control ports for controlling external devices and/or triggering alarms. The embedded CR1000 datalogger measures the sensors, processes the measurements, stores the data in tables, and can initiate communications.
|Connector Label||Compatible Sensors (one sensor per connector)|
|Temp/RH||HMP60-L4-C Vaisala Temperature and RH Probe (RH sensing element is field replaceable.)|
|Wind||05103-L4-C RM Young Wind Speed/Direction|
|Solar||CS305-ET Apogee Pyranometer, CS100 Setra 278 Barometer (barometer connects to the CS110 via the 17460 cable; barometer is typically housed in the LW110 enclosure), GPS16X-HVS Garmin GPS Sensor|
|Rain||TE525-L25-C Texas Electronics rain gage or TB4-L25-C HS Hyquest Solutions rain gage
Communication options compatible with the embedded CR1000 include direct connect, Ethernet, phone modems (land-line and cellular), radios, short haul modems, GOES satellite transmitters, and multidrop modems.
The 17642 Zero Electric Field Cover (ordered separately) is used to check the electric field offset voltage of the CS110. If the measured electric field is ≥|60 V/m| with the Zero Electric Field Cover on, then inspection and cleaning of the electrode surfaces is recommended.
The SG000 (ordered separately) can be used in conjunction with our CS110 to create a complete lightning-threat measurement and analysis system. This system combines the advantages of two complementary lightning-warning technologies. The SG000 reports actual lightning strikes occurring at distances up to 20 miles—providing a comfortable warning time for incoming storms. The CS110 reports electric fields associated with local thunderstorm development—providing a warning prior to lightning strikes.
When programmed as a “Slow Antenna” sampling at 100 Hz, the CS110 would provide polarity information but not actual current flow in the wire; therefore, Campbell Scientific does not recommend using a CS110 for this purpose.
The following information can help determine the effective range (spatial range) of the CS110:
For more information on this topic, refer to the “Cumulonimbus” section (section 3.2) of the book Lightning: Physics and Effects by Vladimir A. Rakov and Martin A. Uman.
The CS110 and the tower should be positioned away from each other a distance of three times the tower’s height.
If the radio signal is strong enough, the SG000 may pick it up as one of the two components the SG000 measures to detect lightning. If this signal coincides with a light flash from a windshield or headlight, it could generate a false strike signal. Also, constant bombardment of the SG000 by sufficiently strong RF signals will pull the sensor out of its quiescent state, affecting its current drain. This will eventually degrade the battery and shorten its expected four-year lifespan.
The CS110 uses the same gas discharge tubes, etc., so it provides similar surge protection as the CR1000. The ground paths are different, although both are intended to provide a good ground path through the ground lug on the wiring panel and the case ground hardware on the CS110.
To simulate a lightning strike to the SG000, use a camera flash to flash the glass bulb from a distance of 5.08 to 7.62 cm (2 to 3 in.). Note: A flash from a cell phone usually isn't large enough to simulate a lightning strike.
To simulate high electric fields on the CS110, run a comb through your hair and hold it a distance of 2.54 to 5.98 cm (1 to 2 in.) from the shutter of the CS110. Other items such as plastic bags or balloons, or fur on glass, can be used as well.
The CS110 Electric Field Sensor, and field mills in general, are referred to as induction probes because the applied electric field induces charge onto sense electrodes. The amount of charge induced by a given field depends on the voltage at which the sense electrode is at.
Normally, it is most convenient to ground the instrument, making the sense electrode at earth ground potential when measuring the vertical component of atmospheric electric field at the surface of the earth. This is because the instrument then appears to be an extension of the earth ground. For example, in a flush-mounted upward-facing configuration with the instrument earth grounded, the imaginary electric field lines will terminate on the instrument as if it were an extension of the earth ground. Negligible field distortion occurs at the instrument aperture, as if the instrument were not present. This configuration mimics the parallel plate factory calibration done on the instrument and is why a flush-mounted upward-facing configuration is used for site correction of inverted and elevated configurations.
The instrument can be connected to other voltage potentials besides ground, or left electrically floating, although the measured results will differ because of the change in voltage between the instrument and the source of charge generating the electric field of interest. The closer the instrument voltage potential is to the voltage of a source of charge generating an electric field to be measured, the less there is an induced charge on the sense electrode. For example, if an induction probe was placed next to, and facing, a large conductive sheet that was at some voltage with respect to earth ground, and a voltage of the instrument was varied by means of a connection to the CS110 ground lug, it would be possible to adjust the instrument voltage until zero charge was induced on the sense electrode from the nearby sheet. For this to occur, the voltage applied to the induction probe would need to equal the voltage applied to the large conductive sheet mentioned. This approach can be used to determine the voltage of the sheet and is referred to as a non-contacting voltmeter. The CS110, or any induction probe for that matter, can operate as a non-contacting voltmeter with the addition of the adjustable supply.