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

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Brochure/specifications     Manual     Reference Sheet

Note: We do not publish prices on the website.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
37IMP-IDO MicroCAT C & T (pressure optional) Recorder with Integrated Dissolved Oxygen sensor (IDO), Inductive Modem, & internal Pump - Includes 7000 m titanium housing, mooring clamp for jacketed wire, 8 MB Flash memory, lithium battery (non-hazardous), AF24173 Anti-Foulant Devices, Seasoft software, & complete documentation. Specify: mooring clamp wire size selection to match O.D. of wire jacket. Compare features of the numerous SBE 37 MicroCAT models (SM, SMP, SMP-IDO, SMP-ODO, SI, SIP, SIP-IDO, SIP-ODO, IM, IMP, IMP-IDO, & IMP-ODO).

37-IMP-IDO MicroCAT includes:

  • Inductive modem interface
  • Memory
  • internal, integral Pump
  • Integrated Dissolved Oxygen sensor

Photos of standard shipment.

Communicating with 1 or more 37-IMP-IDOs requires use of Sea-Bird Inductive Modem Module (IMM) or Surface Inductive Modem (SIM), which provide serial interface between user’s computer & up to 100 IM instruments coupled to single cable. Purchase IMM/SIM & optional Inductive Cable Coupler (ICC) separately.

Also see:

  • SBE 39-IM for temperature and optional pressure recorder with inductive modem interface.
  • SBE 16plus-IM V2 SeaCAT for CTD with inductive modem interface and auxiliary sensor input capability.
  • SBE 44 Underwater Inductive Modem or Underwater Inductive Modem Module (UIMM) to integrate an RS-232 sensor with Sea-Bird's inductive modem telemetry system.
SBE 37-IMP-IDO Mooring Clamp Wire Size Selections (Specify clamp to match O.D. of mooring wire jacket) -- MUST SELECT ONE
37IMP-1a Wire guide & mounting clamp for 1/4 in. diameter mooring wire Cable fits loosely through IM coupling core / wire guide, & is clamped only at mounting clamp. See document 67220.

Thread for clamping to mooring cable:

  • 37IMP-1a (1/4 in. diameter): 1/4-28 UNF
  • 37IMP-1b (5/16 in. diameter): 5/16-24 UNF
  • 37IMP-1c (3/8 in. diameter): 3/8-24 UNF
  • 37IMP-1d (1/2 in. diameter): 9/16-12 UNC
  • 37IMP-1e (6 mm diameter): 1/4-20 UNF
  • 37IMP-1f (8 mm diameter): 5/16-24 UNF
  • 37IMP-1g (10 mm diameter): 7/16 -14 UNF
  • 37IMP-1h (12 mm diameter): 1/2-13 UNF
  • 37IMP-1i (16 mm, 5/8 in. diameter): 5/8-18 UNF
37IMP-1b Wire guide & mounting clamp for 5/16 in. diameter mooring wire
37IMP-1c Wire guide & mounting clamp for 3/8 in. diameter mooring wire
37IMP-1d Wire guide & mounting clamp for 1/2 in. diameter mooring wire
37IMP-1e Wire guide & mounting clamp for 6 mm diameter mooring wire
37IMP-1f Wire guide & mounting clamp for 8 mm diameter mooring wire
37IMP-1g Wire guide & mounting clamp for 10 mm diameter mooring wire
37IMP-1h Wire guide & mounting clamp for 12 mm diameter mooring wire
37IMP-1i Wire guide & mounting clamp for 16 mm (5/8 in.) diameter mooring wire
SBE 37-IMP-IDO ShallowCAT Option -- Plastic (PET-P) Housing with 350 meter depth rating
37IMP-2 350 m plastic housing instead of standard titanium housing (CREDIT)


37-SMP-IDO shown;
plastic housing detail for 37-IMP-IDO similar
Substituting plastic housing for standard 7000 m titanium housing provides lower cost option for shallow deployments.
SBE 37-IMP-IDO Pressure Sensor Range (Depth) Options
37IMP-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-IMP-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)
37IMP-3b 100 m strain gauge pressure sensor
37IMP-3c 350 m strain gauge pressure sensor
37IMP-3h 600 m strain gauge pressure sensor
37IMP-3d 1000 m strain gauge pressure sensor
37IMP-3e 2000 m strain gauge pressure sensor
37IMP-3f 3500 m strain gauge pressure sensor
37IMP-3g 7000 m strain gauge pressure sensor
SBE 37-IMP-IDO Storm Shipping Case Option -- holds up to 3 SBE 37-IMP-IDOs
37IMP-4I Storm shipping case (iM2950) instead of standard wood crate -- holds up to 3 SBE 37-IMP-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 37IMP-4I reflects a credit for deletion of our standard wood crate.

 
SBE 37-IMP-IDO Spares & Accessories
801542 AF24173 Anti-Foulant Device pair (spare, bagged, labeled for shipping) Anti-foulant devices fit into anti-foulant device cups at conductivity cell intake and plumbing exhaust, under the conductivity cell guard. 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 SBE 37 & 44 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 modem end cap & pulling out end cap. Shipping restrictions apply for lithium batteries; see SBE 37-IMP-IDO manual for details.

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).


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).
801863 Yellow top battery holder (14V nominal, Version 2) for use with twelve 3.6V AA lithium cells, for pumped SBE 37 (SMP & IMP with firmware version > 4.0 & all SMP-ODO, IMP-ODO, SMP-IDO, & IMP-IDO)
801836 37-IM/IMP/IMP-IDO/IMP-ODO Internal Data I/O cable, 0.3 m (DN 33406) For uploading data quickly using internal RS-232 connector.
TBD Storm shipping case (iM2950) -- holds up to 3 SBE 37-IMP-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).
For Surface Inductive Modem (SIM), Inductive Modem Module (IMM), and Inductive Cable Coupler (ICC), see separate listing.

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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