Campbell Scientific CS110 Electric Field Meter - Manual (Page 51)

Appendix B. CS110 Accessories
B.1 Zero Electric Field Cover
As previously mentioned, unwanted surface charges residing on non-
conductive deposits on electrodes result in a non-zero electric field, even when
external electric fields are zero. Polished 316-L stainless-steel is used for critical
electrode surfaces on the CS110 to minimize unwanted surface charges. CS110’s
with clean electrodes have been found to display electric field offsets less than 20
V/m in absolute value. The CS110 Zero Electric Field Cover (PN: 17642) 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 as discussed in Section 10.4 is
recommended.
B.2 Upward-Facing Site Calibration Kit
As previously mentioned, the CS110 is calibrated in a parallel plate calibration
chamber, resulting in a valid calibration for a flush-mounted upward-facing
configuration. Yet, inverted and elevated CS110 mounting configurations are
recommended for long term installations. Upward-facing site calibration kit
(PN: 17579) has been designed to provide a flush-mounted upward-facing
configuration for the CS110 to aid in determining site correction factors.
B.3 CR1000 Keyboard Display
The CR1000 keyboard display (CR1000KD) is a convenient CR1000 user
interface that can be directly connected to the CS110. The CR1000 keyboard
display connects to the CS110 through the CS I/O port, requiring a CS110 CS
I/O Cable (CS110CBL2-L). The CR1000KD can be used to view data and
programs, and to make simple program modifications. Details on the
CR1000KD can be found in the CR1000 Measurement and Control System
Operators Manual.
B.4 Miscellaneous Peripheral Modules
The CS110 is compatible with CSI SDM (Synchronous Device for
Measurement) peripherals. The C1, C2, and C3 control ports necessary for
SDM are available through the CS110 POWER CABLE (CS110CBL3-L).
SDI-12 sensors can also be read using C1 and/or C3.
B-1