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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🌡️ Stay ahead with pinpoint temperature precision — because every degree counts!

MODERN DURABLE BUILD - Crafted with quality plastic housing for long-lasting use and resistance to everyday wear.
SEAMLESS ANALOG OUTPUT - 4-20mA output ensures smooth integration with industrial control systems and real-time monitoring.
ROBUST POWER COMPATIBILITY - Operates on a stable 24V DC supply, guaranteeing consistent performance in demanding environments.
COMPACT LIGHTWEIGHT DESIGN - Sleek 45mm diameter and just 25g for easy installation without bulk or hassle.
PRECISION TEMPERATURE CONTROL - Accurately measures from 0 to 100°C with ±0.2% full scale deviation for reliable data-driven decisions.

The TWTADE PT100 Temperature Transmitter is a compact, highly accurate sensor module designed for precise temperature measurement from 0 to 100°C. Featuring a reliable 4-20mA analog output and powered by 24V DC, it delivers ±0.2% full scale accuracy in a lightweight, modern plastic housing, ideal for seamless integration into professional industrial and monitoring systems.

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Brand	TWTADE
Material	Plastic
Style	Modern
Current Rating	20 Milliamps
Maximum Supply Voltage	24 Volts (DC)
Measurement Accuracy	±0.2°C
Mounting Type	Integrated
Output Type	Analog
Upper Temperature Rating	100 Degrees Celsius
UPC	789659498764
Manufacturer	TWTADE
Item Weight	0.81 ounces
Package Dimensions	3.8 x 2.6 x 0.5 inches
Item model number	-0-100℃
Manufacturer Part Number	-0-100℃

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

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