MODEL 8800 SERIES GEONET WIRELESS DATA HOSTING SYSTEM
| NETWORK INSTALLATION |
17
21:
FIGURE 21:
Mounting onto a Metal Plate and/or Inside an Enclosure
Large structures, such as walls, buildings, hills, etc. can block and/or reflect RF
signals. Tips include:
■
Mount antennas above metallic structures.
■
Keep in mind that loggers communicate with each other, not just with the
gateway.
■
A high Received Signal Strength Indicator (RSSI) level does not guarantee
trouble-free communication.
■
Mount devices such that their antennas are on top, pointing upward.
3.4.2 GROUND THE GATEWAY AND LOGGERS
Install a grounding rod and cable, or other suitable ground, at a location near
each device. Cellular Gateways and multiple-channel loggers come equipped
with a copper grounding lug to which you can connect the grounding cable.
Ground Local Gateways and loggers by connecting the grounding cable to the
mounting bracket.
3.5
CONNECT THE SENSORS TO LOGGERS
3.5.1 MAKING CABLE GLAND CONNECTIONS
To connect a device using a cable gland connection:
1.
Loosen the nut on the cable fitting and remove the white plastic dowel.
2.
Slide the transducer cable through the cable gland nut and fitting.
3.
Insert the lead wires into the terminal block as shown in Figure 22 and
Table 7. Press down on the orange tab, insert the bare end of the wire into
the terminal block, and then release the tab.
4.
Pull gently on each conductor to ensure it is secure.
5.
Tighten the cable gland nut until it firmly grips the outer jacket of the cable.
The cable gland nut must be properly tightened to prevent water entry. Do
not over-tighten, as this might strip the plastic threads.
6.
Pull gently on the gauge cable to ensure it is held in place by the cable gland.
7.
Repeat these steps for each gauge cable to be connected.
Metal plate both blocks
and reflects signal
External enclosure
blocks signal
