Compensating Wire ZR-NH-KX-H-FVP Flame Retardant High Temperature Thermocouple Shielded Cable；
Common compensation wires include the following types:
Compensation Lead Wire type | Fitted with heat Thermocouple Pitch number | Compensating Conductor Alloy Wire | Insulation Coloring | Allowable tolerance at 100℃ ℃） | Allowance at 200℃ ℃） | ||||
Positive electrode | Negative Pole | Positive electrode | Negative Pole | Standard Grade | Precision grade | Standard Grade | Precision grade | ||
SC | S | SPC (Copper) | SNC (Copper-Nickel) | Red | Green | ±5 | ±3 | ±5 | - |
KC | K | KPC (Lead) | KNC (Copper-Nickel) | Red | Blue | ±2.5 | ±1.5 | - | - |
KX | K | KPX (Nickel Chrome) | KNX (Nickel Silicon) | Red | Black | ±2.5 | ±1.5 | ±2.5 | ±1.5 |
EX | E | EPX (Nickel Chrome) | ENX (Copper-Nickel) | Red | Brown | ±2.5 | ±1.5 | ±2.5 | ±1.5 |
JX | J | JPX (Iron) | JNX (Copper-Nickel) | Red | Purple | ±2.5 | ±1.5 | ±2.5 | ±1.5 |
TX | T | TPX (Copper) | TNX (Cupronickel) | Red | White | ±1.0 | ±0.5 | ±1.0 | ±0.5 |
Purpose of using compensation wiring:
(1) Move the reference end of the thermocouple from a high-temperature location to a more stable environmental temperature area.
(2) Saves a significant amount of precious and rare metal materials used in the manufacturing of thermocouples.
(3) Using compensating wires facilitates installation and the laying of lines.
(4) Replacing thermocouples with thicker diameter compensation wires having higher conductivity can reduce the resistance in the thermocouple circuit, benefiting measurement and automatic control.
Please note the following points when using compensating conductors:
(1) Various compensation wires are only compatible with corresponding thermocouple models. This means that the thermoelectric properties of the thermocouples and their respective compensation wires must be identical within the specified temperature range (0~100℃).
(2) The temperature at the compensation wire and thermocouple connection point must not exceed the specified operating temperature.
(3) When compensating wires and thermocouples are connected to instruments, the positive and negative poles must not be reversed, and both connection points must be at the same temperature.
(4) Select the wire diameter of the compensating wire according to the line resistance requirements of the instrument to be paired.
ZR-NH-KX-H-FVP flame-retardant heat-resistant thermocouple shielded cable with compensation wire
