RTD Sensor with transmitter, Pt100, 2 Wire

$92.31

RTD sensor built-in small transmitter. It converts temperature to 4-20mA standard signal proportional to the electrical signals of thermistor, and outputs to display instrument or DCS system in control room. Transmitter adopts silicone rubber seal structure, good anti-interference ability, shock and humidity, apply to harsh environments. Measuring temperature range -200~+420 ℃.

SKU: ATO-TSRTDT

Total Length of Thermowell *
Required Temperature Range *

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Delivery date: 6-12 days

Overview

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

Specification:

1. RTD temperature range and accuracy chart

Type of sensing element	Measuring range	Allowable deviation Δt
Pt100	-200~420℃	Class B (-200~800℃) Permissible deviation ±(0.30+0.005\|t\|)
Pt100	-200~420℃	Class A (-200~650℃) Permissible deviation ±(0.15+0.002\|t\|)
Cu50	-100~150℃	-50~100℃ Permissible deviation ±(0.30+6.0*10-3t)

Note: t is the actual measuring temperature absolute value of the temperature sensing element.
2. Transmitter parameter chart

Input	Platinum thermistor: PT100, PT1000
Output	4-20mA
Intrinsic error	±0.2%, ±0.5%
Transmission mode	2 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
Display	3 1/2digital display or LCD display

3. Meter and protection head type
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
T4: Pt100; T6: Pt1000	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; I6: Taper thermowell and fixing thread	C3: Standard waterproof protection head; C4: Explosion-proof protection head	D0: Φ16mm; D1: Φ12mm	225~2150mm

Note: The sensing element is sheath RTD sensor, 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.
Tips: Connection methods of Pt100 RTD sensor
Pt100 RTD sensor usually has two-wire and three-wire connection methods. The two-wire connection is to connect a wire to both ends of thermistor. This connection method is simple with low cost. But it will bring additional error as the lead resistance becomes one arm of the bridge. Although with each change of 10 degrees centigrade, PT100 only changes 0.39 ohms. But the lead wire of industrial field thermistor is usually long and the lead resistance will certainly affect the result of the measurement. Therefore, Pt100 of two-wire connection is only suitable for short distance application. It is necessary to use three-wire connection in the application of long distance. The three-wire connection is to lead one line at one end of thermistor and the other two lines are led at another end. When the thermistor matches with the measuring bridge, lead resistance is connected to two arm of the bridge circuit, which eliminates the influence of the lead resistance and improves the measurement accuracy.

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