I have a pt100 probe to monitor the temperature of water pipes. what do i need to hook up the three wires to to see the to see the temperature?

Attach your 100 ohm Platinum RTD to the 3 screws closest to the middle (The two wires of the same color attach as shown on the sticker found on the transmitter). Now connect +24V to the "+" screw. Attach a resistor (200-250 0hms) to the "-" screw. Connect the -24V to the other side of the resistor. As the temperature of your RTD varies from -50 to +100C your resistor will get 4 to 20mA. Use ohms law. If your resistor is 250 ohm, you get 1 to 5 V. If your resistor is connected across the two input screws of a process meter, the meter will read "-50C" to "100C" for minor adjustments, there is a "zero" and "span" on the transmitter.

What are the two adjustment potentiometers for?

One is the offset adjustment and one is the range adjustment. They have icons to show which is which. The offset should be set so that you get a zero degrees C reading with iced water. Then the range should adjusted so that you get 100 with boiling water. You may have to go back and adjust the offset and repeat until you get 0-100

Will this transmitter work properly with a 12V power supply?

Specs say +24VDC and that's what I used to power the sensor and transmitter. At +12VDC your range would be 2mA to 10mA (partial range unusable below 4mA) rather than the standard 4 - 20mA full temp range. I would search for a +5VDC transmitter and regulate the +12VDC to +5VDC.

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TWTADE / 0~100 Celsius RTD PT100 SBW Temperature Sensor Temperature Transmitter Isolated Detector Module 0~100 Degree - 4-20MA

Product ID: 652002934

Details

Brand
TWTADE
Material
Plastic
Style
Modern
UPC
789659498764
Manufacturer
TWTADE

⚡4-20mA Output

📏45mm Diameter

🌡️0-100°C Range

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Description

🔍 Discover Precision Like Never Before!

ROBUST BUILD - Crafted from durable plastic to withstand various environments.
COMPACT DESIGN - Lightweight at just 25g, perfect for space-constrained applications.
SEAMLESS INTEGRATION - Operates on a DC 24V power supply for effortless compatibility.
VERSATILE APPLICATIONS - Ideal for industrial, HVAC, and laboratory settings.
PRECISION AT YOUR FINGERTIPS - Experience accuracy within ±0.2% FS for reliable readings.

The TWTADE PT100 Temperature Transmitter is a high-performance isolated detector module designed to measure temperatures from 0 to 100°C with exceptional accuracy. Featuring a 4-20mA output and a compact 45mm diameter, this lightweight device is perfect for a variety of applications, ensuring reliable performance in any environment.

Specifications

ASIN	B07RKHDKK7
Best Sellers Rank	#166,176 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #355 in Temperature Probes & Sensors
Brand	TWTADE
Brand Name	TWTADE
Current Rating	4 Milliamps
Customer Reviews	5.0 out of 5 stars 9 Reviews
Manufacturer	TWTADE
Material	Plastic
Material Type	Plastic
Maximum Supply Voltage	24 Volts (DC)
Measurement Accuracy	+- 0.3°C
Model	-50-100℃
Mounting Type	Integrated
Output Type	Analog Electric, 4-20mA
Part Number	-50-100℃
Specific Uses For Product	Electrical
Style	Modern
Style Name	Modern
UPC	789659498740
Unit Count	1.0 Count
Upper Temperature Rating	100 Degrees Celsius

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