The Signet 9900 Transmitter provides a single channel
interface for many di erent parameters including Flow,
pH/ORP, Conductivity/Resistivity, Salinity, Pressure,
Temperature, Level, Dissolved Oxygen, and other sensors
that output a 4 to 20 mA signal. The 9900-1P Transmitter
can also be used as a Batch Controller when a Batch
Module and Relay Module are installed.
The 9900 is o ered in both panel or fi eld mount versions.
Both confi gurations o er an extra large (3.90” x 3.90”)
auto-sensing backlit display features “at-a-glance”
visibility that can be viewed at 4-5 times the distance
over traditional transmitters. The highly illuminated
display and large characters reduce the risk of misreading
or misinterpreting the displayed values. The display
shows separate lines for units, main and secondary
measurements as well as a “dial-type” digital bar graph.
Features
• NEW! Modbus Module supports RS485 Serial
Modbus Communications
• Multiple sensor types supported with one
instrument
• “Dial-type” digital bar graph
• Modules are fi eld installable and replaceable
anytime
• Optional Relay Module for addition of two dry
contact relays
• Optional H COMM Module for two-way
communication
• Optional Batch Module for Batch Control
• Modbus Module for connection to Serial, RS485,
Modbus networks
• One 4 to 20 mA output in base unit. One additional
4 to 20 mA available with optional module
• Rear Enclosure kits for panel, wall or pipe
mounting
• Warning and Relay LED indicators for
“at a glance” visibility
• Customizable features including digital label for
custom identifi cation
• Optional PC COMM confi guration tool for
confi guration at a PC
The 9900 can run on 12 to 32 VDC power (24 VDC nominal),
and can also be loop powered with compatible sensors.
Rear Enclosure kits are available for the 9900-1P Panel
Mount. Kit options include either a Hinged Cover
(3-9900.399-1) for wall or pipe mount installations, or a
Flat Cover (3-9900.399-2) designed to fi t inside a panel for
waterproof protection.
The 9900 o ers complete fl exibility, plug-in modules allow
the unit to easily adapt to meet changing customer needs.
Optional modules include the new Modbus as well as the
Relay, Direct Conductivity/Resistivity, H COMM, Batch,
4 to 20 mA Output, and a PC COMM Confi guration Tool.
The unit can be used with default values for quick and
easy programming or can be customized with labeling,
adjustable minimum and maximum dial settings, and unit
of measure and decimal location choices.
MEASURING EQUIPMEN
77CJ
Applications
• Wastewater Treatment
• Reverse Osmosis
• Deionization
– Ultra Pure Water
– Two Bed System
– Mixed Bed System