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SBE 37-SMP-IDO MicroCAT C-T-DO (Pressure optional) Recorder
Configuration Details

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Brochure/specifications     Manual (RS-232)     Reference Sheet (RS-232)     RS-485 Manual and Reference Sheet not yet available

Note: We do not publish prices on the website. Please contact us [seabird@seabird.com or (+1) 425-643-9866] for pricing.

Part # Description Notes
37SMP-IDO MicroCAT C & T (pressure optional) Recorder with Integrated Dissolved Oxygen sensor (IDO), Serial interface, Memory, & internal Pump - Includes 7000 m titanium housing, mooring clamp, 8 MB Flash memory, RS-232 interface, external power input capability (power plus RS-232 serial on 4-pin connector), lithium battery (non-hazardous), AF24173 Anti-Foulant Devices, data/power interface cable 801385 (cable may be deleted for credit), SEASOFT software, & complete documentation. Quantity orders will be packed several instruments to a box & each box will contain one manual & one software CD-ROM. Single packing, with a manual & CD-ROM in each box, will be provided on request. Specify: mooring clamp wire size selection to match O.D. of wire jacket. There are numerous SBE 37 MicroCAT models (SM, SMP, SMP-IDO, SI, SIP, SIP-IDO, IM, IMP, & IMP-IDO -- click here for comparison of features).

37-SMP-IDO MicroCAT includes:

  • Serial interface (RS-232 standard, RS-485 optional)
  • Memory
  • internal, integral Pump
  • Integrated Dissolved Oxygen sensor

See SBE 16plus V2 SEACAT for instrument with auxiliary sensor input capability.
SBE 37-SMP-IDO Mooring Clamp Wire Size Selections (Specify clamp to match O.D. of mooring wire jacket) -- MUST SELECT ONE
37SMP-1a Wire guide & mounting clamp for 1/4 in. diameter mooring wire Cable fits loosely through wire guide, & is clamped only at mounting clamp. See document 67094G.

Thread for clamping to mooring cable:

  • 37SMP-1a (1/4 in. diameter): 1/4-28 UNF
  • 37SMP-1b (5/16 in. diameter): 5/16-24 UNF
  • 37SMP-1c (3/8 in. diameter): 3/8-24 UNF
  • 37SMP-1d (1/2 in. diameter): 9/16-12 UNC
  • 37SMP-1e (6 mm diameter): 1/4-20 UNF
  • 37SMP-1f (8 mm diameter): 5/16-24 UNF
  • 37SMP-1g (10 mm diameter): 7/16 -14 UNF
  • 37SMP-1h (12 mm diameter): 1/2-13 UNF
  • 37SMP-1i (16 mm, 5/8 in. diameter): 5/8-18 UNF
37SMP-1b Wire guide & mounting clamp for 5/16 in. diameter mooring wire
37SMP-1c Wire guide & mounting clamp for 3/8 in. diameter mooring wire
37SMP-1d Wire guide & mounting clamp for 1/2 in. diameter mooring wire
37SMP-1e Wire guide & mounting clamp for 6 mm diameter mooring wire
37SMP-1f Wire guide & mounting clamp for 8 mm diameter mooring wire
37SMP-1g Wire guide & mounting clamp for 10 mm diameter mooring wire
37SMP-1h Wire guide & mounting clamp for 12 mm diameter mooring wire
37SMP-1i Wire guide & mounting clamp for 16 mm (5/8 in.) diameter mooring wire
37SMP-1j Alternative mounting - plastic brackets to provide through-bolt mounting to a flat surface See document 67096C.
SBE 37-SMP-IDO ShallowCAT Option -- Plastic (PET-P) Housing with 250 meter depth rating
37SMP-2 250 m plastic housing instead of standard titanium housing (CREDIT) Substituting plastic housing for standard 7000 m titanium housing provides lower cost option for shallow deployments.
SBE 37-SMP-IDO Pressure Sensor Range (Depth) Options
37SMP-3a 20 m strain gauge pressure sensor Pressure sensor is installed in end cap, & is not field replaceable / swappable. While highest pressure rating gives you most flexibility in using 37-SMP-IDO, 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 2000 & 7000 m sensors --
  • 2000 m sensor:
    initial accuracy = 2 m (= 0.1% * 2000 m),
    resolution = 0.04 m (= 0.002% * 2000 m)
  • 7000 m sensor:
    initial accuracy = 7 m (= 0.1% * 7000 m),
    resolution = 0.14 m (= 0.002% * 7000 m)
37SMP-3b 100 m strain gauge pressure sensor
37SMP-3c 350 m strain gauge pressure sensor
37SMP-3h 600 m strain gauge pressure sensor
37SMP-3d 1000 m strain gauge pressure sensor
37SMP-3e 2000 m strain gauge pressure sensor
37SMP-3f 3500 m strain gauge pressure sensor
37SMP-3g 7000 m strain gauge pressure sensor
SBE 37-SMP-IDO Alternate Serial Interface Option
37SMP-5 RS-485 (half duplex ONLY) serial interface (replaces RS-232 interface) Two-wire, RS-485 interface provides communication with individual 37-SMP-IDO or with all 37-SMP-IDOs attached to RS-485 interface. This allows for coordination of sampling among many instruments. However, note that half-duplex communication is one-direction at a time (i.e., you cannot send commands & receive data at same time).
Note that RS-232 & RS-485 versions of 37-SMP-IDO have separate manuals; see manual links at top of page.
SBE 37-SMP-IDO Wet-Pluggable Connector Option
37SMP-6b Wet-pluggable (MCBH) connector instead of Standard (XSG) connector (includes data/power interface cable)

Standard Connector (Impulse XSG)
Wet-pluggable Connector (MCBH)

Wet-pluggable connectors may be mated in wet conditions. Their pins do not need to be dried before mating. By design, water on connector pins is forced out as connector is mated. However, they must not be mated or un-mated while submerged. Wet-pluggable connectors have a non-conducting guide pin to assist pin alignment & require less force to mate, making them easier to mate reliably under dark or cold conditions, compared to our standard (Impulse XSG/RMG) connectors. Like standard connectors, wet-pluggables need proper lubrication & require care during use to avoid trapping water in sockets.

37SMP-6b includes a data/power interface cable compatible with wet-pluggable connector.
SBE 37-SMP-IDO Storm Shipping Case Option -- holds up to 3 SBE 37-SMP-IDOs
37SMP-7I Storm shipping case (iM2950) instead of standard wood crate -- holds up to 3 SBE 37-SMP-IDOs

Case holds only 3 IDO MicroCATs
(photo shows 4 non-IDO MicroCATs)
Storm shipping case with custom foam inserts holds up to 3 IDO MicroCATs -- IMP-IDO, SMP-IDO, SIP-IDO.
  • Injection molded case with HPX resin plastic body, recessed wheels, automatic pressure equalization valve, hinged push-button latches, fold-down padded handle, & O-ring seal. Meets airline luggage regulations.
  • Inner dimensions:
    29 x 18 x 10.5 inches (74 x 46 x 27 cm).
  • Outer dimensions:
    31.3 x 20.4 x 12.2 inches (80 x 52 x 31 cm).

Price for 37SMP-7I reflects a credit for deletion of our standard wood crate.

 
SBE 37-SMP-IDO Spares & Accessories
801542 AF24173 Anti-foulant Device (pair, bagged, labeled for shipping) Anti-foulant devices fit into anti-foulant device cups at each end of conductivity cell. 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.
801863 Yellow battery holder (14V nominal, Version 2) for SBE 37 IDO MicroCATs (37-SMP-IDO and 37-IMP-IDO), for use with twelve 3.6V AA lithium cells 801863 is battery holder, without batteries. Battery holder is included with standard shipment; this is a spare.
NOTE: Other MicroCATs use a battery pack with a red cover plate; the wiring of that pack is different from this one, and cannot be used with IDO MicroCATs (37-IMP-IDO or 37-SMP-IDO).

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 SBE 37-SMP-IDO manual & Lithium Battery Shipping Guidelines for details.


801863 shown with 50441 batteries installed
(Note: Batteries cannot be shipped installed in battery holder)

Batteries packed in heat-sealed plastic (above),
then placed in bubble-wrap outer sleeve and
strong packaging for shipment (below).
50441 SBE 37 & 44 lithium batteries (spare), package of twelve 3.6V AA cells (Saft LS 14500)
801385 Data/Power interface cable, RMG-4FS to DB-9S & red/black twisted wire leads, 2.4 m (DN 32277) 801385 -- Included with standard shipment; this is spare.

801206 -- Included with standard shipment if 37SMP-6b specified; this is spare.
801206 Data/Power interface cable, Wet-Pluggable, MCIL-4FS to DB-9S & red/black twisted wire leads, 2.4 m (DN 32366)
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.
TBD Storm shipping case (iM2950) -- holds up to 3 SBE 37-SMP-IDOs

Case holds only 3 IDO MicroCATs
(photo shows 4 non-IDO MicroCATs)
Storm shipping case with custom foam inserts holds up to 3 IDO MicroCATs -- IMP-IDO, SMP-IDO, SIP-IDO.
  • Injection molded case with HPX resin plastic body, recessed wheels, automatic pressure equalization valve, hinged push-button latches, fold-down padded handle, & O-ring seal. Meets airline luggage regulations.
  • Inner dimensions:
    29 x 18 x 10.5 inches (74 x 46 x 27 cm).
  • Outer dimensions:
    31.3 x 20.4 x 12.2 inches (80 x 52 x 31 cm).

Product configuration options listing for all products

Additional cables, mount kits, and spares may be found at: Cables, Mount kits for Sea-Bird sensors, Mount kits for Third Party sensors, Spare parts

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Last modified: 19 Apr 2011

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