OBS-3A
Turbidity and Temperature Monitoring System
OBS-3A Pricing Details
Educational Discounts: Yes Quantity Discounts: Yes Restockable: Yes Warranty: 1 year
Educational Discounts: Yes Quantity Discounts: Yes Restockable: Yes Warranty: 1 year
| Model | Description | |||
| OBS-3A | Turbidity & Temperature Monitoring System (Case Not Included) | |||
| Turbidity Ranges (hide details) | ||||
| -N1 | -N1 0-100 NTUs | |||
|
Select this option if the highest turbidity readings will be less than 100 NTUs.
|
||||
| -N2 | -N2 0-250 NTUs | |||
|
Select this option if the turbidity readings might be larger than 100 NTUs but will always be less than 250 NTUs.
|
||||
| -N3 | -N3 0-500 NTUs | |||
|
Select this option if the turbidity readings might be larger than 250 NTUs but will always be less than 500 NTUs.
|
||||
| -N4 | -N4 0-1000 NTUs | |||
|
Select this option if the turbidity readings might be larger than 500 NTUs but will always be less than 1000 NTUs.
|
||||
| -N5 | -N5 0-2000 NTUs | |||
|
Select this option if the turbidity readings might be larger than 1000 NTUs but will always be less than 2000 NTUs.
|
||||
| -N6 | -N6 0-4000 NTUs | |||
|
Select this option if the turbidity readings might be larger than 2000 NTUs.
|
||||
| Pressure Sensor Options (hide details) | ||||
| -NP | -NP No Pressure Sensor | |||
|
Select this option if you do not want to measure depth or want to use your own pressure transducer.
|
||||
| -10 | -10 0-10m (14 PSI) PT | |||
|
Select this option if the depth will always be less than 10 meters.
|
||||
| -20 | -20 0-20m (28 PSI) PT | |||
|
Select this option if the depth might be larger than 10 meters but will always be less than 20 meters.
|
||||
| -50 | -50 0-50m (71 PSI) PT | |||
|
Select this option if the depth might be larger than 20 meters but will always be less than 50 meters.
|
||||
| -100 | -100 0-100m (142 PSI) PT | |||
|
Select this option if the depth might be larger than 50 meters but will always be less than 100 meters.
|
||||
| -200 | -200 0-200m (284 PSI) PT | |||
|
Select this option if the depth might be larger than 100 meters, but will always be less than 200 meters.
|
||||
| Conductivity Sensor (hide details) | ||||
| -NS | -NS No Conductivity | |||
|
Select this option if you do not want to measure conductivity.
|
||||
| -CS | -CS Conductivity Sensor | |||
|
Select this option if you want the OBS-3A to include a conductivity sensor.
|
||||
| Common Accessories | ||||
| 21099 | OBS-3A Carrying Case (Holds 2) | |||
|
One 21099 carrying case holds two OBS-3A systems.
|
||||
| 425 | Alkaline D Cell Battery | |||
|
Three alkaline D-cells power the OBS-3A. These batteries are not included with the OBS-3A. Customers can purchase the 425 alkaline D-cells or purchase D-cells from their local store. The per battery price is listed above.
|
||||
| 21906 | D Cell Battery Spacer | |||
|
The 21906 allows a user-supplied lithium battery to power the OBS-3A instead of three D-cell alkaline batteries.
|
||||
| 21214 | OBS-3A Field Cable, 10m (33ft) | |||
|
Campbell Scientific offers a choice of four field cables that attach the OBS-3A to a PC. The cables differ in their length. The 21214 is a 10-meter field cable.
|
||||
| 21318 | OBS-3A Field Cable, 20m (65.6ft) | |||
|
Campbell Scientific offers a choice of four field cables that attach the OBS-3A to a PC. The cables differ in their length. The 21318 is a 20-meter cable.
|
||||
| 21319 | OBS-3A Field Cable, 30m (98.4ft) | |||
|
Campbell Scientific offers a choice of four field cables that attach the OBS-3A to a PC. The cables differ in their length. The 21319 is a 30-meter cable.
|
||||
| OBS-3ACBL-L | OBS-3A Field Cable | |||
|
Campbell Scientific offers a choice of four field cables that attach the OBS-3A to a PC. The cables differ in their length. The OBS-3ACBL-L has a user-specified length. A user-specified cable length takes more time to manufacture. The delivery time of the OBS-3ACBL-L is 4 to 6 weeks.
|
||||
| Cable Length (hide details) | ||||
| -L | m per sensor cable | |||
|
Campbell Scientific offers a choice of four field cables that attach the OBS-3A to a PC. The cables differ in their length. The OBS-3ACBL-L has a user-specified length. A user-specified cable length takes more time to manufacture. The delivery time of the OBS-3ACBL-L is 4 to 6 weeks.
|
||||
| HYDRO-WIPER-K | OBS-3A Battery Powered Mechanical Wiper, 1m (3ft) Cable | |||
|
The HYDRO-WIPER-K is a battery-powered wiper that helps ensure accurate measurements by preventing algae and other fouling from covering the OBS-3A lens. It includes an integrated timer for turning the wiper on and off.
|
||||
| 20915 | OBS Sensor 5-Point Sedimentation Calibration (User Must send in Sediment Sample) | |||
| ARCHER-OBS | Juniper Systems Archer Field PC, 256MB w/OBS-Mobile Software | |||
|
The Archer-OBS is a small handheld device with 256 MB of internal data storage. You can carry this device to the field and display OBS-3A measurements, run surveys, and setup the OBS-3A for extended deployment.
|
||||
| ARCHER-OBS-EM | Juniper Systems Archer Field PC, 512MB w/OBS-Mobile Software | |||
|
The Archer-OBS-EM is a small handheld device with 512 MB of internal data storage. You can carry this device to the field and display OBS-3A measurements, run surveys, and setup the OBS-3A for extended deployment.
|
||||
| Replacement Parts | |
| 21122 | Plug Locking Sleeve for OBS-3A & OBS-5+ |
|
The OBS-3A system has this plug locking sleeve attached to it. The 21122 may be purchased to replace a lost or damaged plug locking sleeve.
|
|
| 20792 | OBS-3A Test Cable, 2m (6.5ft) |
|
The 20792 comes attached to the OBS-3A Turbidity System. This test cable is used to connect the OBS-3A to a PC. The 20792 may be purchased to replace a lost or damaged cable.
|
|
| 21149 | Hex Driver 5/64" Tool |
|
This 5/64" Hex Driver is used with the OBS-3A Turbidity System. The 21149 may be purchased to replace a lost or damaged Hex Driver.
|
|
| 21120 | 8-pin Connector Dummy Plug |
|
This connector plug comes attached to the OBS-3A Turbidity System. The 21120 may be purchased to replace a lost or damaged plug.
|
|
| Services | |
| 20914 | OBS-3+/OBS-3A 3-Point Turbidity Recalibration w/Documentation |
|
When the 20914 is ordered, Campbell Scientific will perform a 3-point turbidity recalibration on the turbidity sensor contained in the OBS-3A. An RMA (Returned Material Authorization) is required.
|
|
| 21547 | OBS-3A Temperature Recalibration w/Documentation |
|
The 21547 provides a recalibration of the fast-response, stainless steel-clad thermistor contained in the OBS-3A. Before and after calibration sheets are supplied. An RMA is required.
|
|
| 21548 | OBS-3A Conductivity Recalibration w/Documentation |
|
The 21548 provides a recalibration of the conductivity probe contained in the OBS-3A. Before and after calibration sheets are supplied. An RMA is required.
|
|
| 21549 | OBS-3A Pressure Recalibration w/Documentation |
|
The 21549 provides a recalibration of the semiconductor piezoresistive strain gage contained in the OBS-3A. Before and after calibration sheets are supplied. An RMA is required.
|
|
Resources and Links
Related Documents
Ships With
(1) #20919 Software Support CD
(1) #21229 Accessory Kit
(1) Calibration Certificate
Feedback?