PZAQUARTZ & CERAMIC DYNAMICSKeep the charge sensor at the hot test point. Define the cable path, remote conditioning and acquisition together, before committing to a replacement probe.
PZA-CHG sensor + reviewed hot-zone cable + PZA-AMP conditioning. Configuration requests; exact ratings and documents require confirmation.
PCB’s high-temperature charge guidance ↗ describes passive charge sensing with external conditioning for engine and turbine tests. The installation decision extends beyond the sensing element: specify continuous exposure, dwell and thermal transients separately for every component.
| Location | State in your request | Evidence needed before selection |
|---|---|---|
| Probe at test point | Surface/local temperature, dwell, heat-up/cool-down and vibration | Exact sensor configuration; hot sensitivity, insulation and environmental limits |
| Hot cable run | Temperature along the route, length, bend/strain and exposure | Verified cable construction and termination; review mineral-insulated hardline where required; confirm integral probe exit versus a detachable hot connector |
| Transition & connectors | Actual joints, if present, local temperature and access | Pinout, sealing, insulation, strain relief and cable-to-cable interface |
| Remote conditioner | Its own local/enclosure temperature, grounding and power | Input topology, minimum source resistance, charge capacity and output limits |
| DAQ channel | Input type, coupling, range, sample rate and filter | IEPE excitation/compliance or voltage interface; full-chain usable band |
A +260°C or special +480°C probe is a configuration request. It does not release a cable, connector or converter for the same exposure. Cable distance alone does not prove a cooler electronics zone.
Compare high-temperature charge sensor requests →For PZA-422 requests, verify source resistance, input charge, gain, bias, current/compliance and output swing. Review cooler low-noise cable separately from the hot run.
Confirm both signal pins, case isolation and shield/ground instructions. A single-ended converter is not automatically a differential solution. The listed PZA-AMP coax configurations do not establish differential-input capability; request that conditioner and its hot-source-resistance compatibility separately.
Review leakage and insulation across the sensor, hot cable and terminations as an assembly. Identify pin-to-pin and pin-to-case values and the test conditions where applicable; do not replace these with a single unexplained resistance number.
The Endevco 6222S datasheet ↗ gives a concrete manufacturer example of a balanced differential charge sensor with its own mating cables and conditioners. It is an original reference, not evidence of PZA interchangeability.
Unknown topology? Keep it unknown in the RFQ and include the connector drawing. Do not assign shield or case as a signal return by appearance.
Review remote charge conditioning requests →A sensor that survives the temperature may still be incompatible with the selected conditioner. Endevco TP339, matching and conclusion sections ↗, explains why hot piezoelectric resistance must be checked against the charge amplifier’s input requirements. A room-temperature resistance value alone is insufficient.
Request the sensor/cable assembly’s worst-case hot electrical condition and the conditioner’s specified source-resistance range. Also review thermal-transient response, leakage, connector cleanliness, cable movement and grounding; these are separate from nominal sensitivity arithmetic.
For the dimensional pC/g → mV/g and peak-headroom calculation, use the existing worksheet with your own confirmed values.
Open charge sensitivity & headroom calculator →
| Hypothetical request | Next engineering review | Still unresolved |
|---|---|---|
| 220°C engine housing; existing IEPE DAQ | Passive charge probe, local cable/connector map and compatible remote conversion | Hot insulation; peak charge; DAQ excitation/compliance; verified conditioner temperature |
| 430°C turbine casing; differential output required | Special high-temperature probe/hardline request with differential conditioning | Actual material/termination capability, minimum hot source resistance, mount and calibration scope; no released PZA configuration assumed |
| Startup run; local temperatures and lower frequency unknown | Record temperature/time history, required lowest frequency and complete channel/interface information first | No automatic sensor, converter, cable temperature or low-frequency performance selected |
These are planning examples. They do not show measured PZA results, customer installations, available stock or an approved measurement range.
Describe your actual engine run →PCB’s charge-mode introduction ↗ separates conditioning-dependent low-frequency response from sensor/mounting high-frequency behavior. Specify the band and amplitude/phase tolerance at the temperatures and mounting conditions that matter to your test.
| Review gate | Include in the evidence request | Decision |
|---|---|---|
| Mechanical installation | Controlled mounting drawing, surface, fasteners/torque, base strain, orientation and cable restraint | Resolve access and mounted-response constraints before ordering interfaces |
| Electrical & thermal | Probe and cable hot insulation, connector pinout, case isolation, conditioner source resistance and local temperatures | Resolve topology and hot compatibility before committing to a converter |
| Dynamic acquisition | Frequency band/tolerance, peak/transients, charge and voltage limits, sample rate, anti-alias filtering and channels | Confirm the usable complete-chain measurement window |
| Documentation & supply | Exact model/revision, ambient vs elevated-temperature calibration scope, uncertainty/traceability, CAD and quotation | Agree the supplied evidence and acceptance conditions in the order |
For speed-referenced order tracking during a run-up or coast-down, include the available speed/phase reference and channel synchronization requirements. NI’s order-analysis explanation ↗ shows why speed context belongs with the vibration data; this page does not assume a tachometer or analysis method is supplied.
Point, axes, temperature/time, frequency and amplitude.
Mount, local cable route, hot insulation, conditioner and DAQ.
Controlled documents, calibration conditions and supply confirmation.
Permanent monitoring or protection is a separate system task. Kistler’s 8209A monitoring page ↗ illustrates how such equipment has its own installation and approval scope. This PZA page offers a test-instrumentation review, not a monitoring-system approval.
Possibly. A compatible single-ended charge sensor can feed a reviewed charge-to-IEPE converter in a verified cooler zone. Check hot sensor insulation, input charge, gain, current, compliance voltage, bias and bandwidth. A matching connector alone does not establish compatibility.
No fixed distance guarantees local temperature. Provide the actual cable route, heat exposure, enclosure conditions and conditioner temperature during the intended run. Every segment and termination needs its own review.
Do not assume that it can. A balanced differential output needs a compatible differential input and a verified shield/ground and pinout scheme. Do not ground one signal leg or treat the shield as a signal return without the selected equipment instructions.
The resistance seen by a charge amplifier can fall as the sensing element gets hotter. Match the worst-case hot source resistance to the conditioner’s specified input requirements; a room-temperature insulation check alone does not establish hot compatibility.
No. Probe, hot cable, transition, connector and electronics have separate limits. A +480°C PZA request requires controlled configuration and calibration confirmation. No PTFE extension or converter inherits the probe temperature request.
No. Specify a usable installed band with an amplitude/phase tolerance. Mounting, cable restraint, filtering and the full signal chain affect the measured response; a resonance value is not a flat-band limit.
State the speed range, required orders, available speed or phase reference and synchronization with vibration channels. Speed-referenced analysis is an acquisition and processing requirement; ordering an accelerometer alone does not supply or qualify that complete system.
This page covers a test-instrumentation request. Permanent monitoring, alarms, hazardous-area use and protection duties have additional equipment and system requirements that must be reviewed separately. No such system approval is offered here.
Ask for the exact part and revision, connector/pinout, installation instructions, charge sensitivity and frequency response, hot electrical/thermal evidence, conditioner limits, and calibration conditions/uncertainty/traceability. State whether you need ambient or elevated-temperature characterization.
Send the full original suffix, drawing and operating conditions. PZA identifiers are request configurations pending technical and supply review. Compatibility, price, delivery and available CAD/calibration documents are confirmed in the quotation.
The editable test brief begins with unknowns. Replace them with your actual conditions, including a local temperature for each segment, and select only the accessories you want reviewed.
No hardware profile, connector topology or conditioner is pre-approved. Request controlled drawings and calibration scope together with the quotation. Elevated-temperature dynamic calibration is a separate feasibility and quotation request, not a default deliverable.
Use the product-family pages for a specific catalog configuration. PZA-422 requests apply to a compatible single-ended charge path; keep conditioning under review while the input topology is unknown.
Technical content reviewed 9 November 2026. Manufacturer sources explain principles and original equipment; they do not validate PZA supply specifications.