Dougherty County · Instrumentation cable
We buy instrumentation cable in Albany, Georgia
Instrument cable is small, light and easy to throw out. In a food plant it is also the cable most likely to have lost its identity before anyone looks at it.
- Dougherty County
- Thermocouple and multi-pair
- Shield and pairs checked
01Signal cable in a plant that washes everything
Signal cable in a plant that washes everything
Food processing in Dougherty County means washdown, and washdown means caustic, chlorine and hot water against anything left exposed. Instrument cable survives that in conduit and does not survive it in a wet tray with a damaged jacket. The failures show at the drain wire and the shield tape first.
That is why the review here starts with the shield rather than with the conductor. A pair with a corroded drain wire has lost its ground reference, and a plant that has fought a noisy signal for a year usually replaces the cable rather than the instrument.
02Two families, read differently
Two families, read differently
Thermocouple extension and compensating cable carries a millivolt signal and has to match the thermocouple type. The jacket color is the quickest identifier: yellow for Type K, black for Type J, blue for Type T, and the negative lead is red in each. Get the polarity wrong on a splice and the reading runs backwards.
Multi-pair instrument cable is the other family: 16 or 18 AWG pairs, individually shielded, overall shielded, with a drain wire, rated 300 V and often tray-listed. The pairs are numbered and the numbers are printed on the conductors, which is the only thing that keeps a cut length usable.
- Thermocouple extension cable, identified by type and jacket color
- Multi-pair instrument cable, 16 or 18 AWG, shielded
- Individual and overall shields with drain wires
- Tray-rated constructions from the same plant room
Keep the reel tag with the cable. A length with no type marking cannot be matched to a thermocouple, and it drops to a general control-cable review.
03What washdown takes away
What washdown takes away
First the label, then the jacket print, then the shield. A spool that has stood in a wet room for years is often unreadable, and the only identification left is the pair count and the wire gauge measured off a stripped end.
Water inside the conduit is the other problem. Cable pulled from a low point in a wet run comes out with water in the shield and a green drain wire. That is a condition fact, and it belongs in the first sentence of the submission.
04Working around sanitation windows
Working around sanitation windows
A food plant cannot have a truck on the yard during production in the way a warehouse can. Removal usually happens at night, between sanitation and start-up, or during a shutdown. Cardboard is not allowed past a certain door, tools are counted, and everyone gets an escort.
Practically, that means the material should be staged in a dry area near the dock before the window opens. Spools carried out one at a time through a washdown door at two in the morning is how small lots get abandoned.
05Related
06Questions
Albany questions
Can thermocouple cable be identified without a tag?
Sometimes, from the conductor alloys and the jacket color, but the type has to be confirmed rather than assumed. An unmarked length is reviewed as general signal cable.
Do you buy part spools of instrument cable?
Yes. Part spools are common in plant stores, and they are reviewed on pair count, gauge and shield construction rather than on remaining length alone.
Is wet instrument cable still bought?
Yes, as recovery material. Water in the shield and a corroded drain wire end the reuse case, but the copper is still there.
Send the spool and pair details
Thermocouple type or pair count, wire gauge, shield construction and where the spools have been stored. A photograph of the jacket print settles most of it.