GF Signet 8450 User Manual
Signet 8450-3 Pressure Transmitter
Output -
Output +
System Pwr
Loop System Pwr
Loop +
2
1
4
3
Sensr Gnd
(SHIELD)
Sensr IN
(RED)
Sensr V+
(BLACK)
7
6
5
8052
92 mm
(3.6 in.)
97 mm
(3.8 in.)
56 mm
(2.2 in.)
41 mm
(1.6 in.
)
Optional
Rear
Cover
SIDE VIEW
Field Mount
96 mm
(3.8 in.)
96 mm
(3.8 in.)
96 mm
(3.8 in.)
quick-clips
gasket
panel
terminals
mounting
bracket
latch
Panel Mount
SIDE VIEW
FRONT VIEW
Field Mount &
Panel Mount
Panel Mount
Installation Detail
107 mm (4.2 in.)
42 mm
(1.7 in.)
65 mm
(2.5 in.)
*3-8450.090-3*
3-8450.090-3 Rev. J 01/13 English
English
CAUTION!
• Remove power to unit before wiring
input and output connections.
• Follow instructions carefully to avoid
personal injury.
Contents
1. Installation
2. Specifi cations
3. Electrical Connections
4. Menu Functions
Pres1: 4.5 psi
Pres2: 2.3 psi
Signet Pressure
Transmitter
ENTER
1. Installation
ProcessPro transmitters are available in two styles: panel mount and fi eld mount. The panel mount is supplied with the necessary
hardware to install the transmitter. This manual includes complete panel mounting instructions.
Field mounting requires one of two separate mounting kits. The 3-8052 integral kit joins the sensor and instrument together into a
single package. The 3-8050 Universal kit enables the transmitter to be installed virtually anywhere.
Detailed instructions for integral mounting or other fi eld installation options are included with the 3-8052 Integral kit or the 3-8050
Universal kit.
1.1 Panel Installation
1. The panel mount transmitter is designed for installation using a ¼ DIN Punch. For manual panel cutout, an adhesive template is
provided as an installation guide. Recommended clearance on all sides between instruments is 1 inch.
2. Place gasket on instrument, and install in panel.
3. Slide mounting bracket over back of instrument until quick-clips snap into latches on side of instrument.
4. To remove, secure instrument temporarily with tape from front or grip from rear of instrument. DO NOT RELEASE.
Press quick-clips outward and remove.
2. Specifi cations
General
Compatibility: Signet 2450 Pressure Sensor
Accuracy: ±1% of full scale
Enclosure:
• Case: PBT
• Panel case gasket: Neoprene
• Window: Polyurethane coated polycarbonate
• Keypad: Sealed 4-key silicone rubber
• Weight: Approx. 325 g (12 oz.)
Display:
• Alphanumeric 2 x 16 LCD
• Update rate: 1 second
• Contrast: User selected, 5 levels
Electrical
Power: 12 to 24 VDC ±10%, regulated,
Sensor Input:
• Range: 0-250 psig, 0-17 bar, 0-1700 kPa
Current output:
• 4 to 20 mA, isolated, fully adjustable and reversible
• Max loop impedance: 50 Ω max. @ 12 V,
325 Ω max. @ 18 V,
600 Ω max. @ 24 V
• Update rate: 100 ms
• Accuracy: ±0.03 mA
60 mA max current
Open-collector output: Hi, Lo, Off, Programmable:
• Optically isolated, 50 mA max. sink, 30 VDC max. pull-up
voltage
• Hysteresis: User adjustable
Environmental
• Operating temperature: -10 °C to 70 °C (14 °F to 158 °F)
• Storage temperature: -15 °C to 80 °C (5 °F to 176 °F)
• Relative humidity: 0 to 95%, non-condensing
• Maximum altitude: 2000 m (6562 ft)
• Insulation category: II
• Rating: NEMA 4X/IP65 front
Standards and Approvals
• CE, UL listed
• Immunity: EN50082-2
• Emissions: EN55011 Class B
• 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)
3. Electrical Connections
10
9
8
7
6
5
4
3
2
1
16
15
14
13
12
11
Output 2-
Output 2+
Output 1-
Output 1+
Loop 2-
Loop 2+
System Pwr
Loop -
System Pwr
Loop +
AUX
Power -
AUX
Power +
Snsr 2 Gnd
(WHITE)
Snsr 2 IN
(RED)
Snsr 2 V+
(BLACK)
Snsr 1 Gnd
(WHITE)
Snsr 1 IN
(RED)
Snsr 1 V+
(BLACK)
1
15
S
D
2
_
+
Internal open-collector
output circuit
Outputs
Isolation
Caution: Failure to fully open terminal jaws before removing wire may permanently damage instrument.
Wiring Procedure
1. Remove 13 mm - 16 mm (0.5 in. - 0.625 in.) of insulation from wire end.
2. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.
3. Insert exposed (non-insulated) wire end in terminal hole until it bottoms out.
4. Release orange terminal lever to secure wire in place. Gently pull on each wire to ensure a good connection.
Wiring Removal Procedure
1. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.
2. When fully open, remove wire from terminal.
Wiring Tips:
• Do not route sensor cable in conduit containing AC power wiring. Electrical noise may interfere with sensor signal.
• Routing sensor cable in grounded metal conduit will help prevent electrical noise and mechanical damage.
• Seal cable entry points to prevent moisture damage.
• Only one wire should be inserted into a terminal. Splice double wires outside the terminal.
• If your system uses a single sensor, it must be located within 122 m (400 ft.) of the transmitter.
• If your system uses two sensors, the total length of cable connected to the transmitter is limited to 122 m (400 ft.)
• The 3 conductors from a dual-sensor system can be tied together and then a single set of wires continued on to the transmitter.
• For best performance, ground the sensor SHIELD wire to a local earth ground at a point near the sensor.
(Experiment with connecting the sensor shield wire to different local ground points to identify best signal quality.)
Terminals 3-4: Primary Loop Power
12-24 VDC ±10% system power and current loop connections.
SINGLE SENSOR system MUST use terminals 3-4.
Terminals 5-6: 12-24 VDC ± 10%
Power and current loop connections for second sensor.
• Maximum loop impedance:
50Ω max. at 12 V
325Ω max. at 18 V
600Ω max. at 24V
Terminals 11-16: Dual digital sensor inputs
See next page for more information.
2
1
Terminals 1-2: Auxiliary power is used
only if two sensors are connected to the
transmitter.
2 Signet 8450-3 Pressure Transmitter
Terminals 7-10: Open-Collector Outputs
• Two transistor outputs programmable as High or
Low alarm with adjustable hysteresis
• Outputs can be disabled (Off) if not used
16
15
14
13
12
11
Signet 2450
Pressure Sensors
Terminals
White (Snsr 2 Gnd)
Red (Snsr 2 IN)
Black (Snsr 2 V+)
White (Snsr 1 Gnd)
Red (Snsr 1 IN)
Black (Snsr 1 V+)
3.1 Sensor Input Connections
+
+
-
+
-
+
+
+
-
+
+
+
+
+
-
+
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
*
Example: Two transmitters connected to PLC/Recorder with separate power supply
Loop 2 Loop 2 +
System Power Loop 1 System Power Loop 1 +
AUX Power AUX Power +
Loop 2 -
Loop 2 +
System Power Loop 1 -
System Power Loop 1 +
AUX Power -
AUX Power +
PLC or Recorder
Channel 3
4-20 mA in
Channel 4
4-20 mA in
Transmitter 1
Terminals
Transmitter 2
Terminals
Channel 1
4-20 mA in
Channel 2
4-20 mA in
Power
Supply
12-24 VDC
* *
*
* *
*
*
*
Stand-alone application, no current loop used
Transmitter
Terminals
Power
Supply
12-24 VDC
Connection to a PLC with built-in power supply
Internal
PLC
Connection
PLC or Recorder
Loop 2 -
Loop 2 +
System Power Loop 1 -
System Power Loop 1 +
AUX Power -
AUX Power +
Transmitter
Terminals
Loop 2 -
Loop 2 +
System Power Loop 1 -
System Power Loop 1 +
AUX Power -
AUX Power +
Transmitter
Terminals
Loop 2 -
Loop 2 +
System Power Loop 1 -
System Power Loop 1 +
AUX Power -
AUX Power +
Power
Supply
12-24 VDC
PLC Terminals
Channel 1
4-20 mA
Power
Supply
12-24 VDC
Channel 2
4-20 mA
Channel 2
4-20 mA
Channel 1
4-20 mA
NC
NC
AUX power required only where two sensors are used
AUX power required only where two sensors are used
AUX power required only where two sensors are used
AUX power required only where two sensors are used
A
B
A
B
C
Signet Pressure
Transmitter
Pressure Cal:
0.0 psi >
ENTER
Signet Pressure
Transmitter
Pressure Cal:
0.0 psi >
ENTER
Transmitter
A + B 122 m (400 ft.)
J-box
Transmitter
A + B + C 122 m (400 ft.)
Signet Pressure
Transmitter
Pressure Cal:
0.0 psi >
ENTER
Transmitter
122 m (400 ft.)
3.2 System Power/Loop Connections
3Signet 8450-3 Pressure Transmitter
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