Hach 900 MAX, Инструкция по эксплуатации инструмента

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Page 66
Submerged Pressure Sensor
8990sensors.fm
Section 4
4.3.2 Submerged Pressure Sensor Programming
1. From the Main Menu, select
OPTIONS>LEVEL SENSOR.
2. Select Submerged Xducer using the
CHANGE CHOICE
key and press
ACCEPT.
4.3.3 Submerged Pressure Sensor Calibration
In sites with harsh conditions (extremes of level, temperature, harsh
chemicals, etc.) calibration should be performed more often.
1. From the Main Menu, select
OPTIONS > ADVANCED OPTIONS >
CALIBRATION > SUBMERGED PROBE.
2. Choose the orientation that the sensor will be mounted in the flow stream,
horizontal or vertical, using the
CHANGE CHOICE
key. Press
ACCEPT
.
3. Lift the sensor out of the water and hold it in the air in the same orientation
that you selected in the previous step (horizontal or vertical) (
Figure 18 ).
Then press
ACCEPT
to continue.
Figure 18 Lifting the Sensor Out of the Water
4. Follow either the vertical or horizontal procedure below.
Table 6 Submerged Level Sensor Base Board Connection (J21)
Pin Signal Description Wire Color
A V + Red
B Out + Yellow
C Out - Green
D Ground Black
11:00 AM 21 - APR - 01 CALIBRATION
ACCEPT ORIENTATION OF
CHANGE
CHOICE
SUBMERGED PROBE:
CANCEL
HORIZONTAL
SELECT APPROPRIATE UNITS
Horizontal Vertical