SBE 16plus-IM V2 SEACAT C-T (Pressure optional) Recorder (Inductive Modem)
Configuration Details

Communicating with 1 or more 16plus-IM V2s requires use of Sea-Bird Surface Inductive Modem (SIM), which provides serial interface (RS-232 or RS-485) between user’s computer & up to 100 IM instruments coupled to single cable. Purchase SIM & optional Inductive Cable Coupler (ICC) separately.

See:

• SBE 16plus V2 for version with serial interface (standard RS-232 or optional RS-485) in place of Inductive Modem interface.
• SBE 37-IM or 37-IMP MicroCAT for instrument without auxiliary sensor input capability.

SBE 16plus-IM V2 Housing (depth) Selections -- MUST SELECT ONE

Note: Although 16plus-IM V2 is available with a housing that is rated for 10,500 m, maximum transmission distance between Surface Inductive Modem or Inductive Modem Module and 16plus-IM V2 is rated only to 8000 m.

Thread for clamping to mooring cable:

• 16PIM-1a (1/4 in. diameter): 1/4-28 UNF
• 16PIM-1b (5/16 in. diameter): 5/16-24 UNF
• 16PIM-1c (3/8 in. diameter): 3/8-24 UNF
• 16PIM-1d (1/2 in. diameter): 9/16-12 UNC
• 16PIM-1e (6 mm diameter): 1/4-20 UNF
• 16PIM-1f (8 mm diameter): 5/16-24 UNF
• 16PIM-1g (10 mm diameter): 7/16 -14 UNF
• 16PIM-1h (12 mm diameter): 1/2-13 UNF
• 16PIM-1i (16 mm, 5/8 in. diameter): 5/8-18 UNF

Pressure sensor is installed in connector end cap, & is not field replaceable / swappable. While highest pressure rating gives you most flexibility in using 16plus-IM V2, 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)

SBE 16plus-IM V2 Digiquartz Pressure Sensor Options (substitutes for strain gauge option)

Digiquartz pressure sensors provide better accuracy (0.02% of full scale range vs 0.1% of full scale range) & resolution (Digiquartz resolution dependent on user-programmable integration time) than strain gauge pressure sensors. See SBE 16plus-IM V2 Strain Gauge Pressure Sensor Options above for photo of pressure sensor port; when used with Digiquartz, plug is replaced with nylon pressure capillary fitting.

Pressure sensor is installed in connector end cap, & is not field replaceable / swappable. While highest pressure rating gives you most flexibility in using 16plus-IM V2, 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 psia (1400 m) & 6000 psia (4200 m) sensors --

• 2000 psia (1400 m) sensor:
  initial accuracy = 0.28 m (= 0.02% * 1400 m)
• 6000 psia (4200 m) sensor:
  initial accuracy = 0.84 m (= 0.02% * 4200 m)

Larger, more powerful SBE 5P or 5T is required if also planning to pump auxiliary sensors (such as dissolved oxygen, etc.). SBE 5P plastic pump is rated to 600 m; SBE 5T titanium pump is rated to 10,500 m. Operational characteristics of SBE 5P & 5T are identical.

Pump bulkhead connector on 16plus-IM V2 is standard, so pump can be added in the field without requiring any modifications to 16plus-IM V2. These all include pump, pump mount, & pump interface cable. 16PIM-5c, -5d, -5g, & -5h include pump cable compatible with wet-pluggable bulkhead connectors on 16plus-IM V2 & on pump.

SBE 16plus-IM V2 Wet-Pluggable Connector Option

See SBE 43 specification sheet for sensor description.

SBE 43 is available in 7000 m titanium (16PIM-7a or -7b) or 600 m plastic (16PIM-7c or -7d) housing.

SBE 43 connector type (standard or wet-pluggable) must match 16plus-IM V2 connector type.

SBE 43 is plumbed in line between conductivity sensor & pump; consequently, system requires more powerful SBE 5P plastic pump (16PIM-5f or -5h) or SBE 5T titanium pump (16PIM-5b or -5d) instead of SBE 5M pump (16PIM-5a, -5c, -5e, or -5g). Operational characteristics of SBE 5P & 5T are identical.

SBE 43 Mooring Configuration differs from Profiling Configuration as follows (photo shows SBE 16plus V2 integrated with SBE 43; 16plus-IM V2 is similar):

• Mooring configuration uses black plenum in place of white plenum, & black Tygon tubing (PN 31450) in place of clear Tygon tubing for plumbing, to reduce bio-fouling.
• Mooring configuration uses 1 mil membrane in place of 0.5 mil membrane, to enhance long-term stability.

16PIM-7_ includes SBE 43, mount, & straight cable to connect sensor to 16plus-IM V2 bulkhead connector. If connecting 2 sensors to 1 bulkhead connector, extra charge to substitute Y-cable applies in addition to 16PIM-7_ price.

Additional sensors not listed here ‑- fluorometers, transmissometers, turbidity meters, PAR sensors, etc. from third party manufacturers -‑ are compatible with 16plus-IM V2. These sensors can be purchased from Sea-Bird & integrated with 16plus-IM V2 at our factory, or you can purchase mount kits & cables from Sea-Bird & perform integration yourself. See Third Party portion of price list.

Note: Sea-Bird does not supply Electrochem lithium batteries; you must purchase them elsewhere (see WGT's website for purchasing information). Shipping restrictions apply for Electrochem lithium batteries & assembled battery packs.

• 50323 for 16plus-IM V2 with standard connectors -- See document 67132 for complete listing of parts.
• 50324 for 16plus-IM V2 with wet-pluggable connectors -- See document 67133 for complete listing of parts.