MODEL AP/APX
RF Admittance Point Level Sensor
Proven RF Technology, Universal Application
An industry standard level detection sensor for powders and bulk solids – reliable, low maintenance, high value and high reliability. Ideal for Wide Range of Bulk Solid, Liquid and Slurry Applications, Universal Power Supply, Several Probe Versions.
Universal AC/DC Power Supply
Simple Calibration
Multiple Probe Versions
DPDT Relay Output Fail-Safe
High Process Temp Available (842˚F/450˚C)
IP65 (NEMA Type 4X) Enclosure
Explosionproof Version Available (pending)
MODEL AP/APX
RF Admittance Point Level Sensor
Proven RF Technology, Universal Application
An industry standard level detection sensor for powders and bulk solids – reliable, low maintenance, high value and high reliability. Ideal for Wide Range of Bulk Solid, Liquid and Slurry Applications, Universal Power Supply, Several Probe Versions.
Universal AC/DC Power Supply
Simple Calibration
Multiple Probe Versions
DPDT Relay Output Fail-Safe
High Process Temp Available (842˚F/450˚C)
IP65 (NEMA Type 4X) Enclosure
Explosionproof Version Available (pending)
Principal of Operation
RF admittance technology is the next generation of capacitance based level sensors. It detects the presence or absence of material surrounding the probe based on changing capacitance within a circuit as a result of the dielectric property of the material being sensed. When the presence or absence of material is detected the relay output changes state to indicate the appropriate condition.
In addition, unlike strict capacitance level sensors the Model AP/APX RF admittance point level sensor also employs a driven shield circuit that effectively ignores material build-up along the sensor probe should it occur.
Application and Use
The Model AP/APX is a point level sensor using RF admittance technology. These level switches are suitable for detecting the presence and absence of powder, granular, liquid and slurry materials in a wide range of industries. Mounted on bins, tanks and silos from the top or side, the filling and emptying of vessels can be controlled using the Model AP/APX as the unit generates fail-safe alarms (on power failure) providing overfill or dry run protection.
Technical Data
| Power Supply | 20-250VAC/DC, 50/60Hz |
| Consumption | 25VA |
| Enclosure Protection | IP65 (NEMA Type 4X) |
| Sensitivity | 0.3pF |
| Ambient Temp | -40˚F to +176˚F (-40˚C to + 80˚C) |
| Process Temp | Standard: -40˚F to + 302˚F (-40˚C to +150˚C) Mini: -40˚F to + 302˚F (-40˚C to +150˚C) Cable Extended: -40˚F to + 302˚F (-40˚C to +150˚C) High: -40˚F to + 450˚F (-40˚C to +232˚C) Super High: -40˚F to + 842˚F (-40˚C to +450˚C) |
| Maximum Pressure | 284 psi (20 bar) |
| Local Indication | Alarm – Red, Normal – Blue |
| Output | DPDT Relay, 5A @ 240VAC |
| Fail-Safe | Selectable – High / Low |
| Time Delay | 0-30 seconds, Adjustable |
| Probe Material | Stainless Steel |
| Insulator Material | Standard: PTFE Mini: PTFE Cable Extended: PTFE High: PEEK Super High: Ceramic |
| Housing | Die-Cast Aluminum, Powder Coat, NEMA Type 4X, IP65 |
| Certifications | CE Mark, Hazardous Locations (pending) |
More Information
Click here to download product line PDF’s
Standard Sensor Model Includes:
- Standard Probe (12.8″/326mm insertion length)
- Mini Probe (2.5″/63mm long)
- Cable Extended Probe (25’/7.6m Maximum)
- High Temp Probe (17.8″/450mm long
- Super High Temp Probe (22.8″/580mm long)
- Hazardous Locations (Pending)
Principal of Operation
RF admittance technology is the next generation of capacitance based level sensors. It detects the presence or absence of material surrounding the probe based on changing capacitance within a circuit as a result of the dielectric property of the material being sensed. When the presence or absence of material is detected the relay output changes state to indicate the appropriate condition.
In addition, unlike strict capacitance level sensors the Model AP/APX RF admittance point level sensor also employs a driven shield circuit that effectively ignores material build-up along the sensor probe should it occur.
Application and Use
The Model AP/APX is a point level sensor using RF admittance technology. These level switches are suitable for detecting the presence and absence of powder, granular, liquid and slurry materials in a wide range of industries. Mounted on bins, tanks and silos from the top or side, the filling and emptying of vessels can be controlled using the Model AP/APX as the unit generates fail-safe alarms (on power failure) providing overfill or dry run protection.
Technical Data
| Power Supply | 20-250VAC/DC, 50/60Hz |
| Consumption | 25VA |
| Enclosure Protection | IP65 (NEMA Type 4X) |
| Sensitivity | 0.3pF |
| Ambient Temp | -40˚F to +176˚F (-40˚C to + 80˚C) |
| Process Temp | Standard: -40˚F to + 302˚F (-40˚C to +150˚C) Mini: -40˚F to + 302˚F (-40˚C to +150˚C) Cable Extended: -40˚F to + 302˚F (-40˚C to +150˚C) High: -40˚F to + 450˚F (-40˚C to +232˚C) Super High: -40˚F to + 842˚F (-40˚C to +450˚C) |
| Maximum Pressure | 284 psi (20 bar) |
| Local Indication | Alarm – Red, Normal – Blue |
| Output | DPDT Relay, 5A @ 240VAC |
| Fail-Safe | Selectable – High / Low |
| Time Delay | 0-30 seconds, Adjustable |
| Probe Material | Stainless Steel |
| Insulator Material | Standard: PTFE Mini: PTFE Cable Extended: PTFE High: PEEK Super High: Ceramic |
| Housing | Die-Cast Aluminum, Powder Coat, NEMA Type 4X, IP65 |
| Certifications | CE Mark, Hazardous Locations (pending) |
More Information
Click here to download product line PDF’s
Standard Sensor Model Includes:
- Standard Probe (12.8″/326mm insertion length)
- Mini Probe (2.5″/63mm long)
- Cable Extended Probe (25’/7.6m Maximum)
- High Temp Probe (17.8″/450mm long
- Super High Temp Probe (22.8″/580mm long)
- Hazardous Locations (Pending)
Ordering Information
Sensor Final Assembly Part Number Structure
Ordering Information
Sensor Final Assembly Part Number Structure
1 – Integral
1 – Standard
2 – Mini
3 – Cable Extended
4 – High Temp
5 – Super High Temp
1 – DPDT Relay
1 – Ordinary Location (CE Mark)
2 – Hazardous Location (Pending)
1 – ¾” NPT
2 – 1” NPT (High Temp)
3 – 1-1/4” NPT (Super High Temp)
1 – Integral
1 – Standard
2 – Mini
3 – Cable Extended
4 – High Temp
5 – Super High Temp
1 – DPDT Relay
1 – Ordinary Location (CE Mark)
2 – Hazardous Location (Pending)
1 – ¾” NPT
2 – 1” NPT (High Temp)
3 – 1-1/4” NPT (Super High Temp)