L3520/L3521, Point Level Controller
PRINCO’s High-Perform-X™ L3520 Series level controllers give you the optimum combination of reliability, sensitivity, features, and cost. Conformally coated electronics, NULL-KOTE™ circuitry, explosion-proof / weatherproof enclosures,...
Features:
- RF Impedance
- Probe Based
- Compatible with L850, L860 & L870 Series Probes
- Wide Variety of Liquid & Solid Media
- Explosion Proof: NEMA 4 Class I & II
- Cast Aluminum Housing
- 10-Year Warranty
- NULL-KOTE Circuitry
Quote
Datasheet
Description
Specifications
Models & Accessories
Downloads
Similar Products
L3520/L3521 - Description
PRINCO’s High-Perform-X™ L3520 Series level controllers give you the optimum combination of reliability, sensitivity, features, and cost. Conformally coated electronics, NULL-KOTE™ circuitry, explosion-proof / weatherproof enclosures, ROLLOCK™ probe construction and our unique 10 Year Warranty mean the ultimate in reliability. Excellent sensitivity, coupled with stability of 1 picofarad over the entire operating range, gives you a true set and forget installation.
L3520 Series controllers are used with NULL-KOTE™ probes, available in a wide variety of lengths and designs to fit every application. Princo, one of the pioneers of RF level sensing technology, has provided accurate, dependable, long lived service for thousands of applications in all types of industries, worldwide for more than 4 decades.
L3520 Series controllers are used with NULL-KOTE™ probes, available in a wide variety of lengths and designs to fit every application. Princo, one of the pioneers of RF level sensing technology, has provided accurate, dependable, long lived service for thousands of applications in all types of industries, worldwide for more than 4 decades.
L3520/L3521 - Specifications
| Type | Probe Contact |
| Full Scale | 1 - 5 ft |
| Output | Relay |
| Excitation | 12 - 34 V DC |
| 95 - 135 V AC | |
| 205 - 250 V AC | |
| IP Rating | NEMA 4 |
| Min Temperature | -184 °C |
| Max Temperature | 260 °C |
L3520/L3521 - Models & Accessories
Models
| L3520 | Pushbutton tests control relay |
| L3521 | Pushbutton or remote test for circuitry |
| L853 | Standard Probe |
| L854 | Probe for non-conductive, low-viscosity liquids |
| L861 | Fly Ash Probe, cold side |
| L862 | Short Probe for rugged service |
| L863 | Heavy-Duty Standard Probe |
| L870 | Dual Probe for dielectric materials |
L3520/L3521 - Downloads
L3520 Point Level Controller Datasheet |
L800 Point Level Probes Datasheet |
L3520/L3521 - Similar Products
- RF Impedance
- Probe Based
- Compatible with L840 Series Probes
- Wide Variety of Liquid & Solid Media
- Explosion Proof: NEMA 4 Class I, II & III
- Cast Aluminum Housing
- 10-Year Warranty
- NULL-KOTE™ Circuitry
| Type | Probe Contact |
| Full Scale | 1 - 5 ft |
| Output | Relay |
| Excitation | 17 - 34 V DC, 95 - 135 V AC, 205 - 250 V AC |
| IP Rating | NEMA 4 |
| Min Temperature | -184 °C |
- RF Impedance
- Probe Based
- Level Sentry, detects any circuit failure within 60 seconds
- Compatible with L840 Series Probes
- Wide Variety of Liquid & Solid Media
- Explosion Proof: NEMA 4 Class I, II
- Cast Aluminum Housing
- 10-Year Warranty
| Type | Probe Contact |
| Full Scale | 1 - 5 ft |
| Output | Relay |
| Excitation | 12 - 34 V DC, 95 - 135 V AC, 205 - 250 V AC |
| IP Rating | NEMA 4 |
| Min Temperature | -184 °C |
- RF Impedance
- Probe Based
- Compatible with L850 & L860 Series Probes
- Wide Variety of Liquid & Solid Media
- Vessel Connection size: L850 Series: 3/4" NPT; L860 Series: 1" NPT;
- Cast Aluminum & Thermoplastic Housing
- Thermoplastic Housing: NEMA 1-3, 3S, 4, 4X, 12, 13
- Cast Aluminum Sensor Head, Explosion Proof: NEMA 7, NEMA 9; class I, II & III
| Type | Probe Contact |
| Full Scale | 1 - 5 ft |
| Output | Relay |
| Excitation | 12 - 34 V DC, 95 - 135 V AC, 205 - 250 V AC |
| IP Rating | NEMA 1, NEMA 2, NEMA 3, NEMA 3S, NEMA 4, NEMA 4X, NEMA 7, NEMA 9, NEMA 12, NEMA 13 |
| Min Temperature | -184 °C |
- RF Impedance
- Probe Based
- Compatible with 100 Series Probes
- Process Products Media
- Process Temperature range: Teflon: -300 to 500°F (-184 to 260°C).
- Kynar: -40 to 300°F (-40 to 149°C).
- Explosion Proof: NEMA 4 Class I, II & III
- 10-Year Warranty
| Type | Probe Contact |
| Full Scale | 0.5 - 300 ft |
| Output | Relay |
| Excitation | 21 - 26 V DC, 95 - 135 V AC, 207 - 253 V AC |
| IP Rating | NEMA 4 |
| Min Temperature | -40 °C, -184 °C |
- RF Impedance
- Probe Based
- Compatible with 100 Series Probes
- Process Products Media
- Explosion Proof: NEMA 4 Class I, II & III
- 10-Year Warranty
- NULL-KOTE Circuitry
| Type | Probe Contact |
| Full Scale | 0.5 - 300 ft |
| Output | Relay |
| Excitation | 21 - 26 V DC, 95 - 135 V AC, 207 - 253 V AC |
| IP Rating | NEMA 4, NEMA 4X |
| Min Temperature | -40 °C, -184 °C |