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 2450 Pressure Sensor
1. Description
2. Specifi cations
General
Compatibility
Digital (S
3
L) models: 8450, 8900, 9900
4 to 20 mA models: PLC
Wetted materials:
• Sensor housing: PVDF
• Diaphragm: Ceramic
• Seal: FPM
Process connection:
• -3X, -7X:
1
/
2
in. Union male thread,
where X = U, L, or H
Rear connection:
3
/
4
in. NPT male thread
Cable type: 3 cond + shield, 22 AWG
Standard cable length:
• -3X, -7X: 4.6 m (15 ft)
Sensor Accuracy: ±1% of full scale @ 25 °C
Thermal sensitivity shift: ±0.03% of full scale per °C
Shipping weight: 0.3 kg (0.65 lb.)
Electrical
Power Requirements:
• Digital (S
3
L) models: 5 to 6.5 VDC ±10%, <1.5 mA
• 4 to 20 mA models: 12 to 24 VDC ±10% regulated
Short circuit & reverse polarity protected
Digital (S
3
L) output:
• Type: Serial ASCII, TTL level 9600 bps
• Accuracy: ±1% of full scale @ 25 °C
• Repeatability: ±0.5% of full scale
• Resolution: 0.01 psi (0.001 psi for -XU)
• Update rate: <100 ms
4 to 20 mA output:
• Accuracy: ±32 μA
• Repeatability: ±0.5% of full scale
• Resolution: <5 μA
• Span: Field-scaleable
(see section 6.3 for factory settings)
• Max loop impedance: 100 Ω @ 12 V
325 Ω @ 18 V
600 Ω @ 24 V
• Update rate: <100 ms
• Operating range (Max. pressure for accuracy specifi cations):
-XU 0 to 0.7 bar (0 to 10 psig)
-XL 0 to 3.4 bar (0 to 50 psig)
-XH 0 to 17.2 bar (0 to 250 psig)
Table of Contents
1. Description
2. Specifi cations
3. Installation
4. Digital (S
3
L) Wiring
5. 4 to 20 mA Wiring
6. 4 to 20 mA Span
Adjustment
7. Ordering Information
The 2450 Pressure Sensor has a one-piece injection molded PVDF body and ceramic diaphragm for superior compatibility in corrosive
liquids. These sensors are available with Digital (S
3
L) digital output or fi eld-scaleable 4 to 20 mA output. Select from three (3) pressure
ranges for optimal measurement resolution. Built-in temperature compensation provides outstanding accuracy over a wide operating
range. Versions with
1
/
2
in. union process connection are best suited for in-line installations.
Integral adapters (sold separately) may be used to create a compact assembly with fi eld mount versions of the 8450 Pressure Transmitter
and the 9900 Transmitter.
3-2450.090-1 Rev. K 05/13 English
*3-2450.090-1*
English
• Vacuum range:
-XU -0.1 to 0.7 bar
(-1.5 to 10 psi)
-XL -0.41 to 3.4 bar
(-6 to 50 psi)
-XH -0.96 to 17.2 bar
(-14.6 to 250 psi)
• Proof pressure
(Max. pressure without damage):
-XU 1.4 bar (20 psig)
-XL 5.2 bar (75 psig)
-XH 20.7 bar (300 psig)
Environmental
• Relative humidity:
0 to 95%
(Non-condensing)
• Storage temperature: -20 °C to 100 °C (-4 °F to 212 °F)
• Operating temperature: -15 °C to 85 °C (5 °F to 185 °F)
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.
Declaration of Conformity according to FCC Part 15:
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.
China RoHS (Go to www.gfsignet.com for details)
0
-40 -20 0 20 40 60 80 100 120
°F
°C
-40 -4 32 68 104 140 176 212 248
(bar)
(psi)
1.7
3.4
5.2
6.9
8.6
10.3
25
50
75
100
125
150
12.1
175
13.8
200
225
15.5
275
19.0
-XH
-XL
-XU
Dimensions
3-2450-3X, -7X
34 mm
(1.34 in.)
¾ in.
NPT
81 mm
(3.18 in.)
½ in.
Male
Union
19.1 mm
(0.75 in.)
3-8450, 3-9900-1
97 mm (7.75 in.)
(8450)
96 mm
(3.78 in.)
216.1 mm (8.5 in.)
(9900-1)
USE THE ATTACHED ADHESIVE LABEL TO PRESERVE THE SAFETY INSTRUCTIONS!
(4 Seiten)
(4 Seiten)
(8 Seiten)
(8 Seiten)
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