The 9950 Transmitter is a two channel controller that supports two sensors of same or different types in one instrument. The sensor types supported by the 9950 are Signet Flow, pH/ORP, Conductivity/Resistivity, Salinity, Temperature, Pressure, Level, Dissolved Oxygen, and devices that transmit a 4 to 20 mA signal with the use of the 8058 iGo® Signal Converter.
The 9950 includes advanced features such as derived functions, advanced multiple relay modes, and timer based relay functions. Derived functions allows for the control of a relay or current loop with the sum, delta (difference), or ratio of two measurements, for example delta pressure and delta temperature. Multiple relay modes allow up to three signals to be used for the control of a single relay. This can be any combination of analog and binary inputs. The timer relay modes allow a relay to be activated on a repeating basis from every minute to once every 30 days. Weekday timer mode allows a relay to be energized on a specific day or days of the week at a specific time.
The 3-9950.393-3 Relay Module includes the ability to interface up to four binary inputs. The binary inputs are compatible with either open collector or mechanical contacts. The binary inputs can supply power to the four inputs or accepts powered outputs from external devices. These inputs can be used with level switches, flow switches, pressure switches or other devices. The inputs can be used to directly control the relays of the 9950 or can be used in combination with the measurement readings for advanced control of your process.
Ability to interface up to four binary inputs. The binary inputs are compatible with either open collector or mechanical contacts. The binary inputs can supply power to the four inputs or accepts powered outputs from external devices. These inputs can be used with level switches, flow switches, pressure switches or other devices.
The inputs can be used to directly control the relays of the 9950 or can be used in combination with the measurement readings for advanced control of your process.
The optional Relay Module adds two programmable dry-contact relays. The open collector output in the 9900 base unit uses the Relay 1 setting. The optional Relay Module is assigned to relays 2 and 3 in the menus.
The Direct Conductivity/Resistivity (Cond/Res) Module interfaces Signet 2819-2823 and 2839-2842 Conductivity electrodes directly to the 9900. (Conductivity/Resistivity and Salinity measurements may also be performed via the 2850 Sensor Electronics connected through the 9900 Digital (S3L) inputs.)
The H COMM Module enables communication between the 9900 and a HART®-enabled device. The HART (Highway Addressable Remote Transducer) Protocol superimposes digital signals on top of the 4 to 20 mA analog signal.
The Signet 9900 Transmitter provides a single channel interface for many different parameters including Flow, pH/ORP, Conductivity/Resistivity, Salinity, Pressure, Temperature, Level and other sensors that output a 4 to 20 mA signal. The 9900 Transmitter (Generation II or newer) has the added capability of supporting the Batch Module for batching control the 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.
The Signet 9900 Transmitter is offered in both panel or field mount versions. Both configurations can run on 12 to 32 power (24 VDC nominal). The 9900 can also be loop-powered with compatible sensors.
Designed for complete flexibility, plug-in modules allow the unit to easily adapt to meet changing customer needs. Optional modules include Relay, Direct Conductivity/Resistivity, H COMM, Batch and a PC COMM configuration 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 and decimal measurement choices.
The Signet Rear Enclosure Kit allows the 9900 Transmitter to be mounted just about anywhere. The design features make it suitable for installations onto walls, pipes, struts or inside panels. There are two kits available, Rear Enclosure with Hinged cover or with Flat cover. Kits can be installed on any generation of the 3-9900-1P Panel Mount Transmitter. They can also be used with the 3-9900-1BC Batch Controller System.
The hinged cover version is suitable for wall or pipe mount installations. The kit is equipped with necessary wall mounting hardware. Plastic tie wraps or metal hose clamps (customer supplied) can be used for pipe mount installations. Two slots are available up to 12.7 mm (0.5 in.) wide. The hinged cover design allows for easy access to the back of the 9900 Transmitter for wiring and module installation. The user can install the hinged door to swing down, up or side-to-side.
The fl at cover kit is designed to fi t inside a panel for waterproof protection.
Both options have suffi cient space for all 9900 Transmitter modules. Enclosures have hole markers on all sides, so
users can drill holes and position the wires on the top, bottom or sides.