The Signet 2724-2726 pH and ORP Electrodes features a patented reference electrode design and uses the unique foul-proof patented DryLoc® connector. The large area PE reference junction and pathway is constructed to increase the total reference effectiveness and ensures long service life.
The DryLoc connector with corrosion resistant gold plated contacts readily connects the sensor to the mating 2760 preamplifier or the 2750 sensor electronics. The robust Ryton® threaded sensor body and choice of flat pH, bulb pH, or flat ORP sensing elements provides broad range of chemical compatibility for a wide variety of applications.
There are two optional sensing versions, HF and LC, available. The quick temperature response is available in either a PT1000 or 3 KΩ temperature sensor and allows compatibility with all Signet pH/ORP instruments. The 2724-2726 electrodes are general-purpose sensors ideal for a wide range of applications. The sensors incorporate ¾” NPT or ISO 7-1 R¾ threads for installing into standard pipe-tees. They can also be mounted directly into Signet standard fittings.
Wetted Materials: Ryton, UHMW polyethylene, FKM, glass
Connection: Durable DryLoc® with gold plated connections
Compatible Preamp/Sensor Electronics: 2750 and 2760
Compatible Instruments: Use the 2760 preamplifier with the Signet 8750; Use the 2750 sensor electronics with the Signet 8900, 9900 or 9950 instruments
Additional Features: HF and LC options available
In-line Mounting styles: Standard 3/4 inch or ISO threaded fittings
Submersible mounting: Available using the back of the preamplifier or sensor electronics
Applications: Water treatment, water quality monitoring, etc.
The Signet 2760 pH/ORP Preamplifiers features the DryLoc® connector, providing a robust connection to Signet DryLoc® electrodes.
The 2760 preamplifier allows any DryLoc® pH/ORP electrode to work with Signet ProcessPro® and ProPoint® pH/ORP instruments. It is also sold as a simple connector for use with other manufacturers’ instruments that do not require a preamplified signal.
The DryLoc® electrode connector system quickly forms a robust assembly for submersible and in-line installations. NEMA 4X junction enclosures extend the preamplifier cable to long distances.
The 2760 submersible preamplifier can also be used as an In-line preamplifier when used with the ¾ in. or 1 in. threaded sensors including the 2724, 2774 and 2764 series electrodes. The 2760 In-line preamplifier can be used with Signet fittings up to DN100 (4 in.) and wet-tap assemblies.
- Compatible Instruments: Signet 8750
- Connection: Durable DryLoc® with gold plated connections
- Mounting styles: In-line integral mount and submersion
Compatible sensors: 2724 - 2726, 2735, 2756 - 2757 Wet-Tap, 2764 -2767, 2774 - 2777
The 9900 Transmitter
Fot at-a-glance visibility, the 9900 Transmitter features a large auto-sensing backlit display, "dial-type" bar graph and relay and warning LEDs. The intuitive menu system is consistent with processPro and ProPoint transmitters, assuring you of a quicker and easier installation. The optional Relay, Direct Conducttivity/Resistivity, H COMM and Batch plug-in modules offers ease of use. The PC COMM configuration tool allows you to easely set-up, review, save and load all modifiable parameters. The unit can be used with default valves for quick and easy programming or can be customised with labelling, ajustable minimum and maximum dial settings, and unit and decimal measurement choices. The versatile device also allows third-party 4 to 20 mA signals to be used as an input (optional 8058 module required).
The 9900 Transmitter, a member of Signet's line of SmartPro instruments, provides a single-channel interface for all Flow, pH/ORP, Conductivity/Resistivity, Salinity, Pressure, Temperature, Level, Dissolved Oxygen, Turbidity, Batch and other applications.
The 9900 is available in Panel Mount. And runs on 10.8 to 35.2 VDC power (24 VDC nominal), and can power certain sensors on loop power.
Two dry-contact relays
In addition to the standard programmable Open Collector output in the base unit, the Panel Mount version of the 9900 has a slot for an optional Relay Module, which adds two programmable dry-contact relays. The Open Collector output in the base unit uses the Relay.
Dry-contact relays are electromechanical switches with a moving contact armature.
They are suitable for many general-purpose applications, AC or DC, including AC loads up to 250 V. Install RC Filter Kits, 3-8050.396, on relays used to switch motor or inductive loads.
● Two (2) SPDT dry-contact relay (DCR) inputs
● User programmable
● 250 V, 5 A maximum resistive loading (AC).
● Can switch line voltage (typically 120 to 240 VAC)
● Can switch DC voltage (< 30 VDC @ 5A)
4 to 20 mA Output Module adds an additional 4 to 20 mA loop output to a Signet 9900 Transmitter
● 4 to 20 mA Output Module can be powered using Loop Power or DC Power in the 9900 base unit.
● Independent settings for the loop currents of the Output Module and 9900 base unit (Error, Loop Adjustments, etc.).