Key facts
- Brand
- Signet
- Model
- 9900
- Industry
- Industrial
- Documents
- 3
- Languages
- ZH
- Last added
- 2026-10-20
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Signet 9900 Transmitter User Manual
The Signet 9900 is a versatile single-channel interface transmitter belonging to the SmartPro family. It supports various measurements including flow, pH/ORP, conductivity/resistivity, salinity, pressure, temperature, level, dissolved oxygen, and batch applications. The device operates on a power supply of 10.8-35.2VDC (rated at 24 VDC) and can be installed either flush-mounted or in the field. This manual is written in Chinese.
Read onlineAll Signet 9900 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the operating voltage range for the Signet 9900 transmitter?
The device operates on a power supply of 10.8-35.2VDC, with a rated voltage of 24 VDC.
What is the maximum resistive load rating for the AC relay contacts?
The dry contact relays can switch up to 250V at a maximum of 5A resistive load (AC).
Which versions of the Signet 9900 transmitter are compatible with this module?
The module is compatible only with the third generation or newer versions of the 9900 transmitter.
What is the required power supply voltage range for the module?
The module requires a direct current power supply between 10.8 and 35.2 volts.