Connecting Sensors; Cable Gland Models (8800-1-1_); 10-Pin Bulkhead Models (8800-1-2_); Antenna Installation - Geokon 8800-2-1A Instruction Manual

2.3 Connecting Sensors

A sensor may be attached to a Node before or after the Node has been powered on.

2.3.1 Cable Gland Models (8800-1-1_)

To wire a sensor on models featuring a cable gland:
1) Open the device by unscrewing the four captive screws on the front of the enclosure.
Make sure that no dirt, water or other contaminants are allowed to enter the
enclosure.
2) Loosen the nut on the cable fitting and remove the white plastic dowel.
3) Thread the transducer cable through the cable fitting.
4) Wire each conductor of the cable into the correct position in the terminal block by
pressing down on the corresponding orange tab at the back, inserting the conductor,
and then releasing the orange tab. (Refer to Figure 7 and Table 2 for sensor wiring
information.)

Figure 7 - Terminal Connections

5) Tighten the nut on the cable fitting so that it securely grips the cable. This must be
done to ensure that water does not enter the enclosure. (Beware of
overtightening, which may damage the plastic threads.)

2.3.2 10-pin Bulkhead Models (8800-1-2_)

Sensors are attached to the Node with a 10-pin Bulkhead connector. Align the grooves on
the sensor connector (male), with the connector on the unit (female). Push the connector
into place and then twist the outer ring of the male connector until it locks.

2.4 Antenna Installation

Remove the rubber cap from the antenna mount. Position the antenna on the mount and then
rotate the antenna in a clockwise direction until tightened.
Position Color
VW+ RED
VW- BLACK
TH+ WHITE
TH- GREEN
SHLD BARE

Table 2 - Sensor Wiring

5
Description
Vibrating Wire +
Vibrating Wire -
Thermistor +
Thermistor -
Analog Ground
(shields)