K type Thermocouple with Transmitter

K type thermocouple assembles with protection head and stainless steel thermowell, built-in small transmitter. It converts temperature to 4-20mA standard signal, and outputs to display instrument or DCS system in control room. Transmitter adopts silicone rubber seal structure, save extension wire, good anti-interference ability. Measuring temperature range 0~1000 ℃.

SKU: CCHN-TC-KT

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Delivery date: 6-25 days

Overview

K type thermocouple built-in transmitter can directly provide accurate input signal of temperature changes for display instruments, recording instruments, signal conditioners, scanister and computer.

Specification

1. Thermocouple temperature range chart

Type of sensing element	Temperature range
E type	0~400℃
E type	0~600℃
K type	0~400℃
	0~600℃
	0~800℃
	0~1000℃
S type	600~1600℃
B type	800~1800℃
N type	0~400℃
	0~600℃
	0~800℃
	0~1100℃
	0~1200℃

2. Transmitter parameter chart

Input	Thermocouple: K, E, B, S, T, N
Output	4-20mA
Intrinsic error	±0.5%
Transmission mode	Two wire
Supply voltage	DC 12~35V, rated voltage DC 24V
Load resistance	0~600Ω (DC 24V), rated load 250Ω
Temperature influence	≤0.05/1℃
Working environment	Temperature: -25~+80℃,humidity: 5%~95%, mechanical vibration: f≤55Hz, amplitude＜0.15mm

3. Meter and protection head type (unit: mm)
RTD sensor meter and protection head type

4. Selection chart

Type of sensing element	Meter type	Installing form	Mode of connection	Thermowell diameter	Thermowell total length
S1: E type; S2: K type; S3: S type; S4: B type; S5: T type; S6: J type; S8: N type;	P0: No meter; P2: Meter with digital display; P4: Intelligent meter with digital display	I1: No fixed device; I2: Fixed card sets of thread joint; I3: Movable card sets of thread joint; I4: Fixed card sets of flange; I5: Rectangular movable flange; I6: Taper thermowell and fixing thread	C3: Standard waterproof protection head; C4: Explosion-proof protection head	D0: Φ16mm	300~2150mm

Note: The sensing element is sheath thermocouple, thermowell material is stainless steel, and circuit adopts non-isolated type. When ordering products, write the thermowell insertion depth l and the corresponding temperature range for output 4~20mA signal you need.

Application

Tips: How to connect thermocouple and DCS

Thermocouple uses extension wire and there are nodes in the middle, but corresponding compensating cable must be used and directly connected to DCS thermocouple module. It is necessary to reduce nodes as far as possible so as to reduce interference. In addition, DCS configuration should select corresponding thermocouple model and compensating method as well.
Thermocouple uses transmitter (temperature transmitter) in the field and transforms into 4~20mA standard signal. Then, connect it with the indoor safety grid (if necessary, such as chemical environments) and connect with DCS standard analog quantity card (general AI card). It is noteworthy that compensating cable is necessary from thermocouple to transmitter. Transmitter needs to set compensating method, thermocouple type and calibration range, and DCS should set range and signal type.