Hach 900 MAX ユーザーズマニュアル

8990sensors.fm

Select either inches or centimeters using the

 CHANGE UNITS

 key. The 

distance must be greater than the minimum deadband of 10 in. (25.4 cm) 
for the 75 kHz sensor and 15 in. (38.1 cm) for the 50 kHz sensor.

Press 

 when finished. 

The Submerged area/velocity sensor simultaneously measures level 
and velocity.

Recommended Routing of Submerged Area/Velocity Cable
Proper routing of the cable serves two functions: 

Keeps the in-line desiccant assembly inside the cover and out of the way 
when installing and removing the sampler from tight manholes.

Keeps the desiccant out of direct contact with the elements. Also, keeps 
water from dripping directly onto the desiccant assembly.

To secure the submerged area velocity cable, route the cable around the 
battery and clip it under the battery hold downs.

From the Main Menu, select 

Select Submerged Xducer using the 

 key. Press 

.

From the 

, select 

Highlight Velocity Direction using the 

 and 

keys. Press 

.

Set the velocity direction (upstream, downstream, or always positive) 
using the 

 key. Press 

 to continue.

Highlight Velocity Units using the 

 and 

keys. Press 

.

A

+12 V dc

Red

Red

B

ground

Green

Green

C

Receive (ground)

B/W Shield

Yellow

D

Receive (+)

B/W Center

Orange

E

Transmit (ground)

Black Shield

Violet

F

Transmit (+)

Black Center

Gray

G

Depth (-)

Black

Black

H

Depth (+)

White

White