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IEP-SPEC / MODEL CONFIGURATION REVIEW

Submersible & Cryogenic IEPE Accelerometers

Water pressure and cryogenic temperature need different evidence.

IEP-SPEC groups two separate configuration paths: IEP-SUB for immersion and IEP-CRYO for low temperature. A water-tight housing is not automatically cryogenic, and a cold-survival limit is not the same as calibrated measurement performance at that temperature.

Submersible & cryogenic IEPE: engineering concept diagram
Original concept illustration; not a released product photo or drawing.

SPECIFY THE OPERATING WINDOW

Sensitivity, interface and environmental requirements

These values describe requested configurations. Each selected model needs its own approved specifications; the targets are not one universal performance envelope.

IEP-SPEC: parameters to confirm
Submersible requestIEP-SUB-100; specify depth, pressure, duration and fluid
Pressure targetUp to 16 bar request only; test method and assembly to confirm
Cryogenic requestIEP-CRYO-100; request down to −196°C with actual thermal cycle
Cable and sealIntegral water-blocked or cold-rated cable; connector remains part of review
Electrical reviewSelected-model current, supply, bias and output range; not a blanket 18 V claim

Specify immersion pressure, dwell and the entire cable entry

For a submerged assembly, state pressure units and whether a value is gauge or absolute, depth, fluid, exposure duration, temperature and pressure cycling. The connector and cable entry must be included in the qualification. An IP designation alone does not establish a sixteen-bar continuous rating.

Separate cryogenic operation from cold survival

A low survival temperature only says the assembly may remain intact. Useful measurement requires response, bias, noise and calibration evidence at the specified cold condition, plus cooldown and warmup behavior. Ask about condensation and repeated thermal cycling.

EXACT IDENTIFIERS / ONE INQUIRY PER CONFIGURATION

Compare IEP-SPEC model requests

Select the identifier that describes your requirement, then specify accessories, documents and actual unit quantities. No identifier implies released stock or an approved cross-brand substitute.

Requested configurations · selected-model specifications and availability require confirmation
Request identifierMeasurement / sensitivityInterface / inputsReview & request
IEP-SUB-100SubmersibleConfirmation requiredAcceleration
100 mV/g1 axis · TEDS: optional
integral1 input per unit
Review IEP-SUB-100

Request pressure/depth/duration/fluid and water-blocked cable details. IP68 alone does not define an approved16bar rating.

Released datasheet, STEP, environmental qualification and calibration availability must be confirmed for this exact configuration.

Review calibration evidence →
Configure RFQ →Add to project →
IEP-CRYO-100CryogenicConfirmation requiredAcceleration
100 mV/g1 axis · TEDS: optional
10-321 input per unit
Review IEP-CRYO-100

−196°C is a request target. Establish current/supply/bias, cold response, thermal cycling and cable assembly evidence before use.

Minimum-temperature request: -196°C. Released datasheet, STEP, environmental qualification and calibration availability must be confirmed for this exact configuration.

Review calibration evidence →
Configure RFQ →Add to project →

MODEL + INTERFACES + MATCHED ACCESSORIES

Request your complete measurement chain

Choose a configuration, enter actual unit quantities and request the documents needed for release. Specifications, accessory fit, price and delivery are confirmed in the quotation.

[email protected]

1 units × 1 inputs = 1 sensor inputs. Other channels are additional.

Request pressure/depth/duration/fluid and water-blocked cable details. IP68 alone does not define an approved16bar rating. TEDS: optional.

Matched accessory requests

Quantity is per line. Conditioner and calibration upgrades are optional. Enter your own planning allowance only if useful; blank amounts remain unpriced.

Engineering documents to request

Selected-model release files and certificate availability must be confirmed. This checklist does not imply that they already exist.

Optional planning allowances & budget

Known allowances: USD 0.00 · 1 unpriced lines.

Buyer-entered planning figures, not seller pricing. Freight, tax and other unpriced work are excluded.

Open prefilled email →

Review the complete request brief
IEPE Dynamic Instruments — configuration inquiry
Name: 
Company: 
Reply email: 
Requested model: IEP-SUB-100
Configuration: IEP-SUB; Acceleration
Requested sensitivity: 100 mV/g
Catalog sensitivity target: 100 mV/g
Connector request: integral
Pin assignment request: To confirm
Host DAQ / input: Not supplied
Sensor / instrument quantity: 1 units
Input channels required: 1 (1 per unit; other channels excluded)
Original model: Not supplied
Submission page: /
Originating page: /
Model evidence: Configuration request; selected-model specification and availability require confirmation.
Accessory request lines:
Document requests: Selected-model datasheet; Calibration method, traceability and uncertainty
Buyer model allowance each: not supplied
Buyer target total budget: not supplied
Known planning allowances: USD 0.00; 1 unpriced lines. Buyer-entered estimates only; not a quotation or savings guarantee. Freight/tax/other unpriced work excluded.
Project requirements:
Please confirm selected-model specifications, compatible interfaces, document availability, formal pricing, payment terms and delivery in the quotation.

Engineering files: check the exact model release

Use the blank worksheet now. Request the selected configuration’s actual documents with the quote; no generic drawing or example certificate is presented as a released model record.

Selected-model release required

  • Datasheet and usable-response curve
  • Released STEP and dimensional / mounting drawing
  • Mating-view pinout and axis drawing
  • Calibration certificate and applicable scope
  • TEDS readback and environmental evidence
Review calibration and traceability requirements →

Match the measurement to the test structure

Offshore foundations and submerged machinery need cable-entry and pressure-cycle evidence. Cryogenic vessels and cold test structures need the sensor response through cooldown, soak and warmup, plus local cable support.

Review an original model →

Evidence to request before ordering

Request pressure/dwell or thermal-cycle test evidence, calibration at the relevant condition, leak/insulation results and connector/cable drawings. Keep water and cryogenic qualification records separate.

Define the calibration scope →

Confirm the actual IEPE electrical window

Specialized cold IEPE electronics exist, but their excitation window may differ from general laboratory sensors. The original PCB 351B41 reference specifies20–30V excitation and a3–10V bias window. Those are original-device facts; IEP-CRYO remains a request requiring its own release data.

Resolve the interfaces before final selection

Does the IEP identifier confirm an interchangeable product?

It identifies a configuration request. Exact sensitivity, frequency response, temperature, mounting, connector pin assignment, current, bias and TEDS support require selected-model confirmation. Original model names are comparison references, not approvals.

Which calibration and engineering files can I download?

The blank engineering worksheet is available without registration. Datasheet, STEP, pinout and calibration files need the actual model release. Use the document checklist in the RFQ to request availability and scope.

How do I specify the complete quantity?

Enter the number of sensors or instruments. Each accessory line has its own quantity. Triaxial sensors consume three acceleration inputs each; force and acoustic inputs are additional. Optional budget amounts are your allowances, not quoted seller prices.