---
title: How do I set my 4mA and 20mA points in my strapping chart?
description: "Overview: The TD100 T22 transmitter can transmit liquid level data to third-party systems through the standardized 4-20mA signal. The signal spans from 4 mA (0% level) to 20 mA (100% level) and is lin"
---
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3. [TD100 Transmitter: 4-20mA Output](https://help.titanlogix.com/transmitters?hsLang=en#td100-transmitter-4-20ma-output)
# How do I set my 4mA and 20mA points in my strapping chart?
**Overview:**
The TD100 T22 transmitter can transmit liquid level data to third-party systems through the standardized 4-20mA signal. The signal spans from 4 mA (0% level) to 20 mA (100% level) and is linear between the two points set in SensorLink. To ensure the most accurate output, it’s important that your 4-20 mA settings align with the specific tank levels on the strapping chart programmed in the transmitter and third-party device if applicable.
**Step-by-Step Configuration:**
1. **Connect the TD100 T22 to Your Computer**:
- Ensure the TD100 T22 is powered and connected to your computer using the programming kit wiring.
- Open the SensorLink software.
- For more information about wiring your transmitter up for programming, click [here](https://help.titanlogix.com/programming?hsLang=en).
2. **Access the 4-20 mA Configuration Settings**:
- In SensorLink, click on the “Set 4-20mA Points” button on the bottom left side of the TD100 configuration page.
3. **Set the 4 mA and 20 mA Points**:
- By default, 4 mA corresponds to an empty tank, and 20 mA corresponds to a full tank. To modify these settings:
- Enter in the depth at which you want the 4mA and 20mA points to occur. Press OK when finished.
4. **Align with the Third-Party Device’s Strapping Chart (if applicable)**:
- For more precise readings, make sure the third-party device is also programmed with a strapping chart or something similar to match the TD100’s configuration. This ensures the linear 4-20 mA signal translates accurately into volume or level data.
5. **Testing:**
- Test the output using the third-party system to confirm the calibration is correct.
Note: If you are unsure of the required settings, the factory defaults are typically used for standard applications.
---
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