Campbell Scientific CS110 Electric Field Meter - Manual (Page 37)

CS110 Electric Field Meter
8.7 Measuring Rainfall
Circular connector labeled RAIN can be used to connect up a rain gauge using
a switch closure such as the CS700 or the TE525MM tipping bucket rain
gauges. Example CRBasic instruction to measure the TE525 is given below.
PulseCount(rain_fall,1,2,2,0,0.01,0) 'TE525 tipping bucket 0.01 inches per tip
8.8 Measuring Internal Case Humidity
In order to determine when to change desiccant within a CS110 case, a relative
humidity sensor is contained inside the case. The following CRBasic
instruction provides internal humidity data to the variable Internal_RH, which
can then be monitored in real-time and/or included in an output table.
VoltDiff(Internal_RH,1,mV2500,5,True,0,250,0.1,0) 'Internal humidity
measure.
Changing of CS110 desiccant is recommended for internal relative humidity
values
≥ 80%.
9. PC Software
Campbell Scientific offers two datalogger support software packages for PC
computers that can be used with the CS110 and its embedded CR1000
datalogger. The PC400 package is less expensive than the full featured
LoggerNet package but PC400 does not support combined communication
options (e.g., phone-to-RF), PakBus routing, or scheduled data collection.
LoggerNet software is recommended for applications that require these
capabilities.
The CS110’s embedded CR1000 datalogger is only supported in LoggerNet
version 3.0 and higher or PC400 version 1.0 and higher. Upgrades to earlier
versions of LoggerNet or PC208W are available for approximately half the list
price.
The following overview describes connecting a PC running LoggerNet to the
CS110 and viewing electric field data. The full capabilities of LoggerNet and
PC400 are covered in their respective manuals.
9.1 Quick Start
Connect the CS110’s RS232 port to the PC, and apply 12 Vdc power to the
CS110. Due to a factory installed CR1000 program the shutter should begin to
open/close about 30 seconds after power is turned on.
The CR1000 uses a Campbell Scientific communication protocol called
PakBus. Each CR1000 datalogger in a network connecting to the LoggerNet
PC should have a unique PakBus address. Each CS110 is shipped with a
PakBus address of 1.
The following three screen captures show the settings for each of the three
links in the path from COM Port 1 on the PC to the CS110 with the factory
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