GF Signet 2250 Hydrostatic Level Sensor - Manual

Safety Instructions
1. Prior to installation or removal:
• Depressurize and vent system
• Drain below sensor level
2. Confi rm chemical compatibility before use.
3. Do not exceed maximum temperature/pressure specifi cations.
4. Wear safety goggles or faceshield during installation/service.
5. Do not alter product construction.
6. Dispose of properly; DO NOT INCINERATE!
Signet 2250 Hydrostatic Level Sensor
1. Description
2. Specifi cations
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 FPM.
Several different hardware mounting kits are available to accommodate every installation requirement.
3-2250.090 Rev. E 06/13 English
*3-2250.090*
English
Dimensions
½ in. (ANSI) or
25 mm (ISO)
Solvent Socket,
PVC-U
34 mm
(1.32 in)
115 mm
(4.55 in)
53 mm
(2.09 in)
General
Compatibility:
Signet 8900 Multi-Parameter Controller
Signet 9900 Transmitter
Wetted Material
• Sensor housing:
PVDF
• Union nut/bushing: PVC-U
• Diaphragm: Ceramic
• Diaphragm seal: FPM (optional EPDM)
Cable type: 22 AWG, 3 conductor+capillary tube
Cable length: 10 m (32.8 ft) supplied
max. extension 120 m (400 ft)
Operating Temperature: 15 °C to 85 °C (5 °F to 185 °F)
Storage Temperature: -20 °C to 100 °C (-4 °F to 212 °F)
Operating Pressure: -XU: 0 to 0.7 bar (0 to 10 psig)
-XL: 0 to 3.4 bar (0 to 50 psig)
Electrical
Digital (S
3 L) Output:
• Format: Serial ASCII, TTL level 9600 bps.
• Accuracy: ±1% of full scale (±0.001 psi)
• Power: 5 VDC nominal, 1.5 mA max. current
(5 VDC min, 6.5 VDC max)
• Reverse polarity and short circuit protected
4 to 20 mA Output:
• Factory span:
• -XU: 0 to 0.7 bar (0 to 10 psig) =
0 m to 7 m (0 ft to 23 ft) of water
• -XL: 0 to 3.4 bar (0 to 50 psig) =
0 m to 34 m (0 ft to 115.5 ft) of water
• Accuracy: ± 32 μA
• Resolution: < 5 μA
• Response Time: < 100 ms
• Loop Power Required: 12 to 24 VDC nominal, 22.1 mA max
(10.8 VDC min. to 26.4 VDC max.)
• Max. Loop Impedance:
100 Ω @ 12 V
325 Ω @ 18 V
600 Ω @ 24 V
Standards and Approvals:
• CE
• RoHS Compliant
• Manufactured under ISO 9001 for Quality,
ISO 14001 for Environmental Management and
OHSAS 18001 for Occupational Health and Safety.
China RoHS (Go to www.gfsignet.com for details)
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and,
(2) This device must accept any interference received,
including interference that may cause undesired operation.