2750 pH/ORP Sensors Feature Two-Wire 4 to 20mA Output
The new 2750 Sensors feature a self-contained, fully integrated transmitter with built-in pre-amplification, which reduces system costs while providing absolute signal integrity up to 1,000 feet. The new sensors are ideally suited for a wide range of industrial process applications including water/wastewater treatment, neutralization systems, scrubber control, effluent monitoring and surface finishing.
The 2750 Sensors are available for in-line or submersible installations, and provide two-wire 4 to 20mA loop output for either pH or ORP measurement without the expense of local displays available in full-featured transmitters. The sensor also allows for instant pH/ORP electrode recognition and immediate self-configuration for the appropriate output measurement. Additional functionality is afforded with the unit's S3L (SIGNET Sensor Serial Link) digital interface. With S3L's common bus language capability, hardware is minimized, further reducing system costs.
Other performance features include automatic temperature compensation (pH), calibration verification, DryLoc™ electrical connector and automatic buffer recognition. The optional Local EasyCal allows simple push-button calibration and an LED indicator for visual feedback. Operating temperature ranges are 0° to 85°C (32° to 185°F) with accuracies of ±0.03 pH @ 25°C (77°F), and ±2mV @ 25°C (77°F) ORP.
Manufactured under ISO 9001 and ISO 14001, the 2750 pH/ORP sensors also meet strict CE approvals and are compatible with the new +GF+ SIGNET Model 3-2754 thru 3-2757 pH/ORP electrodes. Due to the unique DryLoc connector, the robust CPVC electrode configuration supports the weight and torque required for the installation and operation of integral junction boxes and the Local EasyCal accessory.
A detailed Power Point Presentation takes you through the basics.
GF+
SIGNET 2750
pH/ORP Sensor Electronics
Product Description: +GF+ SIGNET 2750 pH/ORP Sensors provide
two-wire 4 to 20mA loop output for pH and ORP measurements, without the expense
of local display and other luxuries available in full-featured transmitters.
Pre-amplification is built-in, reducing system costs while ensuring absolute
signal integrity up to 304.8m/1,000 feet. These sophisticated field-mount
devices also provide the S3L (Signet Sensor Serial Link™) digital
interface, the latest development in leading-edge technology from +GF+ SIGNET.
The 2750 Sensor Electronics self-configure for pH or ORP operation via automatic
recognition of electrode type, and the new DryLoc™ electrode connector quickly
forms a robust assembly for submersible and in-line installations. NEMA 4X
Junction Boxes are integral parts of the in-line version and are available as
accessories for the submersible version. The
optional Local EasyCal feature allows simple push-button
calibration and includes an LED for visual feedback.
Specifications PDF file Installation Manual PDF file PowerPoint
Features:
- Two-wire fixed 4 to 20mA loop output
- S3L™ Digital Interface
- No additional pre-amplifier required
- In-line integral mount (above right) and submersible (below right) installation versions
- Automatic
Temperature Compensation (pH)
- New DryLoc™ electrode connector
- Auto configuration for pH or ORP operation
- Optional Local EasyCal calibration aid
- Automatic buffer recognition
You will require three components for a working sensor / transmitter; replaceable electrode (pH or ORP), a sensor (inline or submersible) and a junction box. Inline sensors also require a pipe adapter for mounting in a 1 1/4" pipe tee.
| Electrode pH or ORP | number | price |
| pH Flat (for most chemical applications) | 3-2754 | $ 231.00 |
| pH Bulb (for surface waters and spa applications) | 3-2756 | $ 199.00 |
| pH Flat-HF (hydrofluoric resistant) | 3-2754-HF | $ 285.00 |
| pH Bulb (DI water service) | 3-2756-DI | $ 220.00 |
| ORP Flat (resistant to flowling) | 3-2755 | $ 252.00 |
| ORP extended tip (increased sensitivity) | 3-2757 | $ 220.00 |
| Sensors | ||
| Inline sensor with junction box and Local EasyCal | 3-2750-2 | $ 350.00 |
| PVC pipe adapter for inline | P31515-0P200 | $ 30.00 |
| CPVC pipe adapter for inline | P31515-0C200 | $ 35.00 |
| PVDF pipe adapter for inline | P31515-0V200 | $ 65.00 |
| Submersible sensor (see below for junction box) | 3-2750-3 | $ 300.00 |
| Junction box for submersible sensors | ||
| 3/4" NPT junction box with EasyCal | 3-8052-2 | $ 99.00 |
| Universal junction box with EasyCal (mounts to pipe or flat surface) | 3-8050-2 | $ 99.00 |
| Optional Accessories | ||
| 3/4" liquid tight connector - each (seals wire in junction box) | 3-9000.392-1 | $ 15.00 |
| pH buffer kit | 3-0700.390 | $ 5.00 |
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