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HydroCAT-EP

Measures conductivity, temperature, depth, dissolved oxygen, pH, turbidity, and chlorophyll. It is ideally suited for extended deployments in remote, biologically rich environments, for depths to 350 m.

Factory calibration and streamlined reference checks enable users to generate scientifically defensible data with minimal time and cost required for field maintenance. A five-year warranty and a set annual service cost means users can easily predict and plan for their service costs during the first five years of use. Ideally suited for long term deployments, the HydroCAT-EP can be easily integrated with external data loggers and telemetry systems.

Specifically designed for long-term deployments in remote, biologically rich environments, it comes equipped with multiple anti-fouling systems. Most sensors, including pH, are protected within the unique internal flow path by EPA approved anti-foulant devices. An integral pump minimizes the sensors' exposure to environmental waters, significantly reducing the impact of bio-fouling on sensor performance and drift. A copper faceplate and wiper protect the combination chlorophyll and turbidity sensor.

The HydroCAT-EP uses Sea-Bird Scientific UCI. This easy to use software can also be used with the SUNA V2 Nitrate Sensor.  Multiple task wizards and features like an automatic battery endurance calculator make it easy for anyone from novice water-quality professionals to senior experts to quickly learn how to use it.

Looking for the HydroCAT (less expensive instrument without pH, Chlorophyll, or Turbidity)? Click here.

Measurement Range

Conductivity 0 to 70 mS/cm (0 to 70,000 μS/cm)
Temperature -5 to +45 °C
Optional Pressure 0 to 20 / 100 / 350 m (meters of deployment depth capability)
Optional Dissolved Oxygen 120% of surface saturation in all natural waters (fresh and salt)
pH 0 - 14 pH
Optional Turbidity 0 - 3,000 NTU
Optional Chlorophyll 0 - 400 µg/L

Initial Accuracy

Conductivity ± 0.003 mS/cm (3 μS/cm)
Temperature ± 0.002 °C (-5 to +35 °C); ± 0.01 (+35 to +45 °C)
Optional Pressure ± 0.1% of full scale range
Optional Dissolved Oxygen larger of ± 0.1 mg/L (3 μmol/kg) or ±2%
pH ± 0.1 pH
Optional Turbidity ± 1%
Optional Chlorophyll ± 3%

Typical Stability

Conductivity 0.003 mS/cm (3 μS/cm) per month
Temperature 0.0002 °C per month
Optional Pressure 0.05% of full scale range per year
Optional Dissolved Oxygen < 0.03 mg/L (1 μmol/kg)/ 100,000 samples (20°C)
pH 0.1 pH over 90 days
Optional Turbidity -
Optional Chlorophyll -

Resolution

Conductivity 0.0001 mS/cm (0.1 μS/cm)
Temperature 0.0001 °C
Optional Pressure 0.002% of full scale range
Optional Dissolved Oxygen 0.007 mg/L (0.2 μmol/kg)
pH 0.01 pH
Optional Turbidity 0.06 - 0.17 based on range
Optional Chlorophyll 0.007 - 0.037 based on range

Miscellaneous

Input 9 - 24 VDC
Internal Battery 7.8 Amp hour
Communication Interface RS 232 / SDI 12
Data Memory 16 MB FLASH
Housing, Depth Rating, & Weight Plastic, 350 m

 

The list below includes (as applicable) the current product brochure, manual, and quick guide; software manual(s); and application notes.

For older HydroCAT-EP product manuals, organized by instrument firmware version, click here.

Title Type Publication Date PDF File
HydroCAT-EP Brochure Product Brochure Tuesday, January 31, 2017 datasheet-hydrocat-ep.pdf
HydroCAT-EP Manual Product Manual Monday, February 13, 2017 HydroCAT_EP_003.pdf
HydroCAT-EP Quick Guide Product Quick Guide Monday, February 13, 2017 HydroCAT_EP_referencesheet_003.pdf
UCI Manual Software Manual Wednesday, February 1, 2017 UCI-1.2-User-Manual.pdf
Compare Integrated pH Sensors Technical Note Tuesday, August 2, 2016 pH-HydroCAT-EPvsSeapHOx.pdf
AN02D: Instructions for Care and Cleaning of Conductivity Cells Application Notes Monday, June 13, 2016 appnote2DJun16.pdf
Defensible Data with Less Time and Effort Application Article Tuesday, January 31, 2017 Defensible-Data-with-Less-Time-and-Effort_0.pdf
Long Term pH Monitoring Application Article Tuesday, January 31, 2017 Long-Term-pH-Monitoring.pdf
Cable and Bulkhead Connector Maintenance Technical Note Tuesday, January 31, 2017 Bulkhead-Connectors.pdf
AN27D: Minimizing Strain Gauge Pressure Sensor Errors Application Notes Wednesday, May 18, 2016 appnote27DMay16.pdf
AN31: Computing Temperature and Conductivity Slope and Offset Correction Coefficients from Laboratory Calibrations and Salinity Bottle Samples Application Notes Monday, June 13, 2016 appnote31Jun16.pdf
Swapping/ Installing pH Sensor Technical Note Tuesday, January 31, 2017 HydroCAT-pH-Installation.pdf
AN69: Conversion of Pressure to Depth Application Notes Monday, July 1, 2002 appnote69.pdf
AN73: Using Instruments with Pressure Sensors at Elevations Above Sea Level Application Notes Wednesday, April 12, 2017 appnote73Apr17.pdf
AN83: Deployment of Moored Instruments Application Notes Wednesday, April 12, 2017 appnote83Apr17.pdf

UCI

UCI is a graphical software application that makes setup, operation, and in-field reference checks easy and robust. UCI is the recommended software for interacting with HydroCAT, HydroCAT-EP, SUNA and Deep SUNA.
Version 1.2.0 released March 30, 2017

UCI 1.2 is now available for Apple Mac OS X / macOS. UCI now supports Deep SUNA. Please use the latest UCI for all SUNA interaction. SUNACom is now deprecated and is no longer maintained.

UCI-1.2.0-b152-x86.exe for Windows 7/8/10
UCI-1.2.0-132-macos-x86_64.pkg for Mac OS X / macOS
Family Model . Housing Pressure Sensor/Range SBE 63 Optical
Dissolved Oxygen
Turbidity &
Chlorophyll a
HC EP . 1 – 350 m (plastic) 0 – none 0 – none 0 – none
        1 – 20 m strain gauge 1 – yes 1 – yes
        2 – 100 m strain gauge    
        3 – 350 m strain gauge    

Example: HCEP.1311 is a HydroCAT-EP with 350 m housing, 350 m strain gauge pressure sensor, integrated SBE 63 Optical Dissolved Oxygen Sensor, and integrated Turbidity and Chlorophyll a sensor. See table below for description of each selection.

PART # DESCRIPTION NOTES
HCEP

HydroCAT-EP Conductivity, Temperature and pH (Depth, Chlorophyll, Turbidity and Optical Dissolved Oxygen optional) Recorder, Serial Interface, Memory and Internal Pump- Includes 350 meter plastic housing, 16 MB flash memory, RS-232/SDI-12 interface, external power input capability (power plus RS-232 serial on 6 pin MCBH wet-pluggable connector) lithium batteries (non-hazardous), AF24173 Anti-Foulant devices, data/power interface cable, UCI software, and complete documentation.

SDI-12 interface is in addition to RS-232 interface. Instrument can be set up via RS-232, using full set of commands, and then a more limited set of commands can be sent via SDI-12 to make small setup changes in the field.

HydroCAT-EP is intended for coastal applications.

HydroCAT-EP Pressure Sensor Range (depth) Selections MUST SELECT ONE
HCEP.10xx No pressure sensor Pressure sensor is not field replaceable / swappable. While highest pressure rating gives you most flexibility in using HycroCAT-EP, it is at expense of accuracy & resolution. It is advantageous to use lowest range pressure sensor compatible with your intended maximum operating depth, because accuracy & resolution are proportional to pressure sensor's full scale range. For example, comparing 100 & 350 m sensors:
  • 100 m sensor:
    initial accuracy = 0.1 m (= 0.1% * 100 m),
    resolution = 0.002 m (= 0.002% * 100 m)
  • 350 m sensor:
    initial accuracy =0.35 m (= 0.1% * 350 m),
    resolution = 0.007 m (= 0.002% * 350 m)
HCEP.11xx 20 m strain gauge pressure sensor
HCEP.12xx 100 m strain gauge pressure sensor
HCEP.13xx 350 m strain gauge pressure sensor
HydroCAT-EP Optical Dissolved Oxygen Sensor Selections MUST SELECT ONE
HCEP.1x0x No oxygen sensor  
HCEP.1x1x Optical dissolved oxygen sensor
HydroCAT-EP Turbidity and Chlorophyll a Selections MUST SELECT ONE
HCEP.1xx0 No Turbidity & Chlorophyll a sensor  
HCEP.1xx1 Turbidity & Chlorophyll a sensor with Wiper  
HydroCAT-EP Spares & Accessories
550616 Bail mounting kit
HC-pH Replacement pH sensor for HydroCAT-EP  
50647 pH teflon junction & electrolytes maintenance kit. Hydrolab part number 013410HY.  
SAS-541483 Replacement optical sensor (Turbidity & Chlorophyll a) for HydroCAT-EP  
SAS-542035 Solid secondary standard for use with HydroCAT-EP  
801542 AF24173 Anti-Foulant Device pair (spare, bagged, labeled for shipping) Anti-foulant devices fit into anti-foulant device cups at intake & exhaust. Anti-foulant devices included with standard shipment; these are spares.
Useful life varies, depending on several factors. We recommend that customers consider more frequent replacement when high biological activity & strong current flow (greater dilution of anti-foulant concentration) are present. Moored instruments in high growth & strong dilution environments have been known to obtain a few months of quality data, while drifters that operate in non-photic, less turbid deep ocean environments may achieve years of quality data. Experience may be strongest determining factor in specific deployment environments.
50441 HydroCAT-EP lithium batteries (spare), package of twelve 3.6V AA cells (Saft LS 14500)

One set of batteries is included with standard shipment; 50441 are spares. Batteries are easily accessed by removing 2 screws from connector end cap & pulling out end cap. Shipping restrictions apply for lithium batteries; see HydroCAT-EP manual for details. Click here to buy Saft LS 14500 from Amazon.

801863 is battery holder, without batteries. Battery holder is included with standard shipment; this is a spare.


801863 shown with 50441 cells installed
(Note: Cells cannot be shipped
installed in battery holder)


Cells packed in heat-sealed plastic (above),
then placed in bubble-wrap outer sleeve &
strong packaging for shipment (below)

801863 Yellow top battery holder (14V nominal, Version 2) for use with twelve 3.6V AA lithium cells
802220 Data/Power interface cable for RS-232 and SDI-12 interface, Wet-pluggable, MCIL-6FS to DB-9S & red/black twisted wire leads, 2.4 m (DN 33733) Included with standard shipment; this is spare.
20200 USB to Serial Port Adapter, FTDI UC232R-10 (connects computers with USB ports to RS-232 instruments) Many newer PCs & laptop computers have USB port(s) instead of RS-232 serial port(s). USB serial adapter plugs into USB port, & allows a serial device to be connected through adapter. Multi-port adapters are available from other companies; see Application Note 68.
802255 Data/Power polyurethane jacketed interface cable, 5 m, SDI-12, wet-pluggable, MCIL-6FS to DB-9S with red/black & yellow/black twisted wire leads (DN 33768)  
802256 Data/Power polyurethane jacketed interface cable, 10 m, SDI-12, wet-pluggable, MCIL-6FS to DB-9S with red/black & yellow/black twisted wire leads (DN 33768)
802257 Data/Power polyurethane jacketed interface cable, 15 m, SDI-12, wet-pluggable, MCIL-6FS to DB-9S with red/black & yellow/black twisted wire leads (DN 33768)
235192.01 Replacement copper intake plate. Replacement frequency is determined by remaining thickness when instrument is returned for service, this cost will not be included in annual service
Photo shows copper intake plate being removed

 

Cables

  • 802220 To computer COM port with power leads and leads to SDI-12 (from Wet-pluggable connector), 2.4 m, DN 33733

Mount Kits

  • 550616 Bail mounting kit

Spare Parts

Batteries

  • 801863 Yellow battery holder (14V nominal, Version 2) for use with twelve 3.6V AA lithium cells
  • 50441 HydroCAT lithium batteries, package of twelve 3.6V AA cells (Saft LS 14500) - Click here to buy Saft LS 14500 from Amazon.

Hardware & O-Ring Kits

  • 60074 Hardware & O-ring kit (document 67232)

Miscellaneous

  • 801542 AF24173 Anti-Foulant Device (pair, bagged, labeled for shipping)
  • 50430 HydroCAT-EP Reference Check Kit (procedure 67233)

Compare  Moored / Time Series Recording Instruments

SBE Measures
(C, T, P)
Auxiliary Sensors Memory Power Communication Real-Time
Data
Comments
Internal External
SBE 16plus V2 SeaCAT C-T (P) Recorder C, T, P* 6 A/D; 1 RS-232 64 Mb RS-232 Optional pump
SBE 16plus SeaCAT C-T (P) Recorder
C, T, P* 4 A/D; optional RS-232 or PAR 8 Mb RS-232 or -485 Replaced by SBE 16plus V2 in 2008
SBE 16 SeaCAT C-T (P) Recorder
C, T, P* 4 A/D 1 Mb RS-232 Replaced by SBE 16plus in 2001
SBE 16plus-IM V2 SeaCAT C-T (P) Recorder C, T, P* 6 A/D; 1 RS-232 64 Mb   Inductive Modem Optional pump
SBE 16plus-IM SeaCAT C-T (P) Recorder
C, T, P* 4 A/D; optional RS-232 or PAR 8 Mb   Inductive Modem Replaced by SBE 16plus-IM V2 in 2008
SBE 19plus V2 SeaCAT Profiler CTD C, T, P 6 A/D; 
1 RS-232
64 Mb RS-232 Programmable mode — profiling or moored
SBE 19plus SeaCAT Profiler CTD
C, T, P 4 A/D; optional PAR 8 Mb RS-232 Replaced by SBE 19plus V2 in 2008
SBE 19 SeaCAT Profiler CTD
C, T, P 4 A/D 1 - 8 Mb RS-232 Replaced by SBE 19plus in 2001
SBE 37-SM MicroCAT C-T (P) Recorder C, T, P*   8 Mb RS-232 or -485  
SBE 37-SMP MicroCAT C-T (P) Recorder C, T, P*   8 Mb RS-232, RS-485, or SDI-12 Integral pump
SBE 37-SMP-IDO MicroCAT C-T-DO (P) Recorder C, T, P* Integrated DO 8 Mb RS-232 or -485 Integral pump; Replaced by SBE 37-SMP-ODO in 2014
SBE 37-SMP-ODO MicroCAT C-T-DO (P) Recorder C, T, P* Integrated Optical DO 8 Mb RS-232, RS-485, or SDI-12 Integral pump
HydroCAT C-T-(DO)-(P) Recorder C, T, P* Integrated Optical DO* 8 Mb RS-232 & SDI-12 Integral pump; for Coastal applications to 350 m
HydroCAT-EP
C-T-pH-(DO)-(P)-(Chl)-(NTU) Recorder
C, T, P* Integrated pH, Optical DO*, Chlorophyll*, Turbidity* 16 Mb RS-232 & SDI-12 Integral pump; for Coastal applications to 350 m
SeapHOx Ocean C-T-DO-pH (P) Recorder C, T, P* Integrated Optical DO, pH 8 Mb RS-232 37-SMP-ODO with SeaFET pH sensor; to 50 m
Deep SeapHOx Ocean C-T-DO-pH (P) Recorder C, T, P* Integrated Optical DO, pH 8 Mb RS-232 37-SMP-ODO with Deep SeaFET pH sensor; to 2000 m
SBE 37-IM MicroCAT C-T (P) Recorder C, T, P*   8 Mb   Inductive modem  
SBE 37-IMP MicroCAT C-T (P) Recorder C, T, P*   8 Mb   Inductive modem Integral pump
SBE 37-IMP-IDO MicroCAT C-T-DO (P) Recorder C, T, P* Integrated DO 8 Mb   Inductive modem Integral pump; Replaced by SBE 37-IMP-ODO in 2014
SBE 37-IMP-ODO MicroCAT C-T-DO (P) Recorder C, T, P* Integrated Optical DO 8 Mb   Inductive modem Integral pump
SBE 37-SI MicroCAT C-T (P) Recorder C, T, P*   8 Mb   RS-232 or -485  
SBE 37-SIP MicroCAT C-T (P) Recorder C, T, P*   8 Mb   RS-232 or -485 Integral pump

SBE 37-SIP-IDO MicroCAT C-T-DO (P) Sensor

C, T, P* Integrated DO 8 Mb   RS-232 or -485 Integral pump
SBE 39plus Temperature (P) Recorder T, P*   64 Mb Optional USB & RS-232 Optional  
SBE 39 Temperature (P) Recorder
T, P*   32 Mb Optional RS-232 Optional Replaced by SBE 39plus in 2014
SBE 39plus-IM Temperature (P) Recorder T, P*   64 Mb   Inductive Modem & USB  
SBE 39-IM Temperature (P) Recorder T, P*   32 Mb   Inductive modem Replaced by SBE 39plus-IM in 2016
SBE 56 Temperature Logger T   64 Mb   USB    
SBE 26plus Seagauge Wave & Tide Recorder T, P C optional 32 Mb RS-232
(tides, waves, & wave statistics)
Wave & tide recorder
SBE 26 Seagauge Wave & Tide Recorder
T, P C optional 8 Mb RS-232   Replaced by SBE 26plus in 2004
SBE 53 BPR Bottom Pressure Recorder T, P C optional 32 Mb RS-232 Bottom pressure recorder
SBE 54 Tsunameter Tsunami Pressure Sensor T, P   128 Mb Optional RS-232 Tsunami pressure sensor

C = conductivity, T = temperature, P = pressure, DO = dissolved oxygen
* = optional
products are no longer in production. Follow the links above to the product page to retrieve manuals and application notes for these older products.

Compare Oxygen Sensors

SBE Sensor Type Output Depth (m) User-
Programmable?
Can be
Integrated with
Use
SBE 43 Dissolved Oxygen Sensor membrane 0 - 5 volts 600, 7000   Moored CTDs
(with 1.0-mil membrane),
or
Profiling CTDs
(with 0.5-mil membrane)
SBE 43F Dissolved Oxygen Sensor membrane frequency 600, 7000   Moored CTDs
(with 1.0-mil membrane),
or
profiling CTDs
(with 0.5-mil membrane)
SBE 63 Optical Dissolved Oxygen (DO) Sensor optical RS-232 600, 2000, 7000 Moored CTDs or slow profiling CTDs
** Products are no longer in production. Follow the links above to the product page to retrieve manuals and application notes for these older products.