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Signet 2250 Hydrostatic Level Sensor
*3-2250.090*
3-2250.090 Rev. 5 10/17
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English
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Deutsch
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Français
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Español
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Italiano
Description
The Signet 2250 Hydrostatic Level Sensor uses a gauge pressure sensor to calculate the
level of fl uid in a tank.
Gauge pressure sensors measure the difference in pressure between the process on one
side of a diaphragm and the atmospheric pressure on the opposite side of the diaphragm.
A tiny capillary tube running from inside the sensor body and up the length of the cable
provides the reference to atmospheric pressure.
Hydrostatic level measurement can be a simple and practical solution to those applications
where the fl uid temperature is stable and constant.
IMPORTANT!
This method of level measurement is not recommended if the fl uid is
subject to temperature variations or any other variable that causes the
density of the fl uid to change.
The 2250 Hydrostatic Level Sensor has excellent chemical compatibility.
The wetted materials are PVDF, Ceramic and FKM.
Several different hardware mounting kits
are available to accommodate every
installation requirement.
Table of Contents
Warranty Statement .............................................................................. 2
Product Registration ............................................................................. 2
Safety Information................................................................................. 2
Dimensions ........................................................................................... 2
Specifi cations........................................................................................ 3
Installation............................................................................................. 3
2250 Assembly Detail ........................................................................... 4
Wiring ................................................................................................. 5-6
Respanning the 4 to 20 mA Output....................................................... 7
Ordering Information ............................................................................. 8
Product Manual
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Summary of Contents for Georg Fischer 3-2250-21U
- Page 1 English Signet 2250 Hydrostatic Level Sensor *3-2250.090* 3-2250.090 Rev. 5 10/17 Product Manual Description The Signet 2250 Hydrostatic Level Sensor uses a gauge pressure sensor to calculate the level of fl uid in a tank. Gauge pressure sensors measure the difference in pressure between the process on one side of a diaphragm and the atmospheric pressure on the opposite side of the diaphragm.
- Page 2 Warranty Information Specifi cations Refer to your local Georg Fischer Sales offi ce for the most current warranty statement. General Compatibility ......Signet 8900 Multi-Parameter Controller All warranty and non-warranty repairs being returned must Signet 9900 Transmitter include a fully completed Service Form and goods must be Signet 9950 Dual Channel Transmitter returned to your local GF Sales offi...
- Page 3 Installation 2250 with 4 to 20 mA or Digital (S L) Output: Remote Mounting IMPORTANT! The 2250 can provide a digital (S L) signal to a A tiny capillary tube inside the sensor body is used 8900 Multi-Parameter Controller, 9900 Transmitter or 9950 to ensure that the back of the diaphragm remains at Dual Channel Transmitter.
- Page 4 2250 Assembly Detail Glue the union bushing onto Remote system Cut the cable to length and the conduit. terminate the wires at the terminal block inside the conduit base. CAUTION The capillary tube that runs the length of the sensor cable must remain open to the atmosphere.
- Page 5 Wiring Digital (S L) wiring • 3-2250-11X-X options provide Digital (S L) output when powered with 5 VDC from a 9900 Transmitter, a 9950 Dual Channel Transmitter or a 8900 Multi-Parameter Controller. • Connecting the SHIELD to a direct Earth ground may reduce electrical noise interference. •...
- Page 6 • Connecting the SHIELD to a direct Earth ground may reduce electrical noise interference. Black (Loop +) Power Supply 4 to 20 mA Sensors DC 12 - 24 V Red (no connection) 3-2250-21U 3-2250-21L White (Loop -) 3-2250-21U-1 Cable shield 3-2250-21L-1 Optional Earth ground •...
- Page 7 Respanning the 4 to 20 mA Output • The 4 to 20 mA span can be set to accommodate any application within the operating range of the sensor. • The respanning procedure requires that the sensor be subjected to the actual pressure that will represent 4 mA and 20 mA. •...
- Page 8 0252 Confi gurationTool Georg Fischer Signet LLC, 3401 Aero Jet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. (626) 571-2770 • Fax (626) 573-2057 For Worldwide Sales and Service, visit our website: www.gfsignet.com • Or call (in the U.S.): (800) 854-4090 For the most up-to-date information, please refer to our website at www.gfsignet.com...
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