Float level gauges Type
746Float level gauges Type
746
Level gauges for top-mounting PN6 to PN100
| Type | Data sheet |
Manual | ATEX- Certificate |
Description |
|---|---|---|---|---|
| 746.1XXX.2 |  PDF |
PDF |
Reed-Resistor tap 5 / 10 / 15 mm resolution 3-wire | |
| 746.1XX1.7 | PDF |
PDF |
Reed-Resistor tap 5 / 10 / 15 mm resolution with 2-wire R/I-converter Std. | |
| 746.1XX2.X | PDF |
PDF |
ATEX
 PDF
ATEX HART PDF |
Reed-Resistor tap 5 / 10 / 15 mm resolution with 2-wire R/I-converter Ex i, optional HART or Fieldbus |
| 746.2001 | PDF |
PDF |
Magnetostrictive Sensor with high resolution 4-wire | |
| 746.2002 | PDF |
PDF |
ATEX PDF |
Magnetostrictive Sensor with high resolution 2-wire Ex i Zone 0 |
Accessories for 746.1XXX.2
Transmitter feed circuit 4 - 20 mA, Ex i on request
Accessories generally
 | Floats
| Flanges | |
Magnetostrictive Level measurement
with ring magnet
with bar magnets
A ferromagnetic wire is penetrated simultaneously by a local longitudinal magnetic field from the float magnet and a circular magnetic field generated by a current pulse, which interferes at the position of the float magnet. This causes the Wiedemann-effect i.e. a striction onto the wire, which travels as a torsional wave along the wire with a specific sonic speed. The position of the magnet is determined precisely by measuring the runtime, which is directly proportional to the liquid level.
Float level gauges Type
748, dial type
Float
level gauges for top-mounting up to 22 bar
alternatively equippably with:
| limit switches (Microswitch) |
| proximity switches |
| potentiometer with or without transmitter |
applicable in zone 0, 1 and 2
| Type | Data sheet | Manuals | ATEX- Certificates |
Description |
|---|---|---|---|---|
| 748.2051 |  PDF |
PDF |
PDF,
PDF |
Measuring length up to 5 m, threaded connection G3/4, standard |
| 748.2052 | PDF |
PDF |
PDF,
PDF |
Measuring length up to 5 m, threaded connection G3/4, Ex d, Ex i, zone 0 |
| 748.2121 | PDF |
PDF |
PDF,
PDF |
Measuring length up to 16 m, flange connection from DN50, PN16, Standard |
| 748.2122 | PDF |
PDF |
PDF,
PDF |
Measuring length up to 16 m, flange connection from DN50, PN16, Ex d, Ex i, zone 0 |
Accessories generally
| Flanges |
| © 2003-2008 by PHÖNIX Messtechnik GmbH, Design by KHO, letzte Aktualisierung: 03.09.08 |