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MODEL 5081-A
SECTION 3.0
SENSOR WIRING
SECTION 3.0
SENSOR WIRING
3.1 WIRING MODEL 499A OxyGEN, CHLORINE, AND OzONE SENSORS
All 499A sensors (499Ado, 499Atrdo, 499ACL-01, 499ACL-02, and 499AoZ) have identical wiring.
use the pigtail wire and wire nuts provided with the sensor when more than one wire must be attached to a single ter-
minal.
FIGURE 3-1. Amperometric sensors
with standard cable.
FIGURE 3-2. Amperometric sensors with optimum
EMI/RFI cable or variopol cable.
3.1
Wiring Model 499A oxygen, chlorine, and ozone sensors
3.2
Wiring Model 499ACL-01 (free chlorine) and pH sensors
3.3
Wiring Model Hx438 and Gx448 sensors
NOTE
The Model 5081-A transmitter leaves the factory configured for use with the Model 499ADO sen-
sor (ppm dissolved oxygen). If a 499ADO sensor is not being used, turn to Section 7.5.3 and
configure the transmitter for the desired measurement (ppb oxygen, oxygen measured using a
steam-sterilizable sensor, free chlorine, total chlorine, or ozone) before wiring the sensor to the
transmitter. Operating the transmitter and sensor for longer than five minutes while the trans-
mitter is improperly configured will greatly increase the stabilization time for the sensor.
Be sure to turn off power to the transmitter before wiring the sensor.
