Digital Temperature Sensor with transmitter, Pt100, 2 Wire

$153.85

RTD sensor with digital meter can directly display high-precision real-time temperature. 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. Built-in small transmitter adopts silicone rubber seal structure, good anti-interference ability, shock and humidity, apply to harsh environments. Measuring temperature range -200~+420 ℃.

SKU: ATO-TSRTDD

Total Length of Thermowell *
Required Temperature Range *

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Delivery date: 6-12 days

Overview

RTD temperature sensor 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	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
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: Troubleshooting of Pt100 RTD sensor

Fault: Instrument shows negative value.
Possible cause: Wrong connection between display instrument and Pt100 RTD sensor, or short circuit of Pt100 RTD sensor.
Processing method: Correct the connection, find out short circuit position and strengthen insulation.
Fault: Instrument shows that the indicated value of Pt100 RTD sensor is lower than the actual value or the indicating value is unstable.
Possible cause: There are metal chips, dust, dirt among wiring terminal and Pt100 RTD sensor short circuit.
Processing method: Remove metal chips, clean dust and water drops, find out short circuit position and strengthen insulation.
Fault: Instrument displays infinity.
Possible reasons: Pt100 RTD sensor or lead wire short circuit, or connection terminal loosening, etc.
Processing method: Change the resistance body, or welding and tighten the thread screw.
Fault: Relation between Pt100 RTD sensor resistance value and temperature has changed.
Possible cause: Resistance wire of Pt100 RTD sensor become corrosive and degenerative.
Processing method: Replace resistance wire of Pt100 RTD sensor.