When a TQ402 111-402-000-013 appears on a replacement list or repair report, it is not enough to simply reorder the same string. The full ordering code, suffix, cable length, and mounting configuration decide whether the transducer will physically fit, connect correctly, and work with the existing signal conditioner. This manual explains how to read the code, match suffixes, and avoid common sourcing mistakes.
What TQ402 111-402-000-013 actually identifies
TQ402 is an eddy current proximity transducer used mainly with VM600 condition monitoring and machinery protection systems. It measures shaft vibration, axial position, or displacement without contact. The 111-402-000-013 string is an order code that defines the product family, build, and variant.
| Code segment | Practical meaning in sourcing |
|---|---|
| TQ402 | Eddy current proximity transducer family |
| 111 | Series / product group identifier |
| 402 | Probe function and electrical characteristics |
| 000 | Standard build, no special certification |
| 013 | Version / configuration suffix |
Important: The last block “013” is not a serial number. It is a configuration code. Two probes with identical first blocks but different suffixes can have different cable lengths, connector types, or tip configurations.
Suffix options that affect replacement
Common TQ402 111-402-000-013 suffix patterns seen in field orders:
| Suffix | Field meaning | Typical installation |
|---|---|---|
| H05 | 5 m integral cable | Local junction box, small machine skids |
| H10 | 10 m integral cable | Standard turbine / pump / compressor runs |
| C160 | Extended cable version | Large motor shaft-end monitoring with long cable distance |
| E040/E090 | Often used with EA402 extension cable lengths | Sensor-to-signal-conditioner long cable paths |
Do not rely on the suffix alone. Always check the physical probe label, cable tag, and the VM600 configuration sheet. In many BOM lists the suffix is missing, and that missing suffix is the most common cause of receiving a 5 m probe for a 10 m run.
TQ402 111-402-000-012 vs 013
The 012 and 013 versions are frequently listed together in replacement projects. In field practice, the 012 and 013 suffixes usually indicate different default cable termination or length options for the same TQ402 series. Before substituting one for the other, confirm:
- EA402 extension cable length and connector pin assignment
- Signal conditioner input compatibility (IQS450, IPC704, or equivalent)
- Physical clearance for the probe tip and thread
- Gap voltage requirement after installation
A 012 probe may be compatible mechanically but will create a panel-wiring mismatch if the cable length or connector gender differs from the existing 013.
EA402 cable and shield matching
The TQ402 transducer often connects through an EA402 913-402-000-012 or 913-402-000-013 extension cable. The EA402 code suffix defines length options such as E040 or E090. If the TQ402 probe has an integral cable and the EA402 extension is ordered separately, the total cable length and shield continuity must match the original installation. A damaged or mismatched EA402 shield can cause signal drift and false gap alarms.
Probe gap setting and target surface guide
For TQ402 installations, correct mechanical setup is as important as correct part number.
- The target surface must be conductive, smooth, and free from runout, scratches, or plating defects.
- The probe tip must have enough clearance; typical target diameter should be at least two to three times the probe tip diameter.
- Set the initial gap according to the transducer calibration curve, then verify the gap voltage at the signal conditioner before coupling the machine.
- Use non-conductive feeler gauges; magnetic tools can damage the probe or shift the reading.
Sourcing checklist for TQ402 111-402-000-013
Before you send a purchase request, record:
- Full order code including suffix: e.g., 111-402-000-013 + H10
- Cable length and connector type
- Probe thread size and tip diameter
- Target surface condition and gap voltage
- Signal conditioner model and channel configuration
- Whether a calibration certificate or test report is required
Common mistakes when decoding TQ402 part numbers
- Ordering only 111-402-000-013 without the suffix.
- Mixing EA402 cable lengths from a different project.
- Reusing an old probe with a severely worn tip but leaving the same gap setting.
- Treating TQ402 and TQ412 as identical. TQ412 has different mounting/thread requirements; always confirm the original drawing.
- Assuming all 013 variants have the same integral cable length. They do not.
FAQ
How do I decode TQ402 111-402-000-013 quickly?
Start with the product family (TQ402), then the order code blocks (111-402-000), and finally the suffix after 013 for cable length or connector variant. Compare the physical label; do not decode from memory.
Is TQ402 111-402-000-013 a serial number?
No. It is an order code. Serial numbers are separate markings on the probe body or cable tag.
Can TQ402 111-402-000-012 replace 111-402-000-013?
It may be mechanically compatible, but verify cable length, EA402 connector, and signal conditioner input before substitution.
What is the correct EA402 cable for TQ402 111-402-000-013?
Match the EA402 suffix to the existing installation. If the original EA402 is 913-402-000-013 with E090, replace with the same E090 length unless you re-run the cable and reconfigure the system.
Verified replacement and stock support
When you need a TQ402 111-402-000-013 transducer, EA402 extension cable, or VM600 signal conditioner module, provide the full code and suffix. Joyoung International Trading Co., Limited supports industrial automation spare parts sourcing for PLC, DCS, and vibration monitoring systems, including VM600, Bently Nevada, Epro, Triconex, and ABB.
Email: [email protected]
Phone: +86-181-5013-7565
We will check stock, confirm physical configuration, and arrange fast delivery for your machine protection system.
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