GF Signet 8450-3 User Manual

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Page 1

‡ SIGNET 8450-3 Pressure Transmitter

ENGLISH

3-8450.090-3

CAUTION!

• Remove power to unit before wiring input and output connections.

• Follow instructions carefully to avoid personal injury.

C-1/01 English

Contents

1. Installation

2. Specifications

3. Electrical Connections

4. Menu Functions

Pressure

Pres1: 4.5 psi Pres2: 2.3 psi

1. Installation

ProcessPro transmitters are available in two styles: panel mount and field 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 field 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 1/4 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.

gasket

panel

terminals

ENTER

mounting

bracket

96 mm

(3.8 in.)

96 mm

(3.8 in.)

96 mm (3.8 in.)

107 mm

(4.2 in.)

FRONT VIEW

Field Mount &

Panel Mount

SIDE VIEW

Field Mount

2. Specifications

General

• Compatibility: +GF+ SIGNET 2450 Pressure sensors

• System accuracy: ±1% of full scale with 2450 sensors Enclosure:

• Rating: NEMA 4X/IP65 front

• Case: PBT

• Panel case gasket: Neoprene

• Window: Polyurethane-coated polycarbonate

• Keypad: Sealed 4-key silicone rubber

• Weight: Approx. 325g (12 oz.) Display:

• Alphanumeric 2 x 16 LCD

• Display update rate: 1 second

• Contrast: User selected, 5 levels

41 mm

)

(1.6 in.

SIDE VIEW

Panel Mount

Optional Rear Cover

56 mm (2.2 in.)

97 mm

(3.8 in.)

92 mm (3.6 in.)

latch

Panel Mount Installation Detail

m e t

o o L

m e t

s y S

o o L

d n

G r s

)

L E I

H S (

I r s

n e

) D

E R (

u p

s n e

)

K C A

L B (

t u p

t u

quick-clips

Open-collector outputs:

• Programmable for High or Low operation

• Optically isolated, 50 mA max. sink

• 30 VDC maximum pull-up voltage.

• Hysteresis: User adjustable

Environmental

• Operating temperature: -10 to 70°C (14 to 158°F)

• Storage temperature: -15 to 80°C (5 to 176°F)

• Relative humidity: 0 to 95%, non-condensing

• Maximum altitude: 2000 m (6562 ft)

• Insulation category: II

• Pollution degree: 2

Electrical

• Power: 12 to 24 VDC ±10% regulated, 60 mA max current

• Current output: 4 to 20 mA, isolated, fully adjustable and reversible

• Max loop impedance: 50Ω max. @ 12 V, 325Ω max. @ 18 V, 600Ω max. @ 24 V

• Update rate: 100 ms

• Output accuracy: ±0.03 mA

Standards and Approvals:

• CSA, CE, UL listed

• Immunity: EN50082-2

• Emissions: EN55011

• Safety: EN61010

• Manufactured under ISO 9001 and ISO 14001

page 1 of 8‡ SIGNET 8450-3 Pressure Transmitter

Page 2

3. Electrical Connections

Caution: Failure to fully open terminal jaws before removing wire may permanently damage instrument.

Wiring Procedure

1. Remove 0.5 - 0.625 in. (13-16 mm) 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.

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

Power and current loop connections for second sensor. Max. loop impedance:

50 Ω max. @ 12 V 325 Ω max. @ 18 V 600 Ω max. @ 24 V

± 10%

Terminals 11-16: Dual digital sensor inputs

See next page for more information.

2 1

Loop 2-

Loop 2+

System Pwr

Loop -

System Pwr

Loop +

AUX

Power -

AUX

Power +

Terminals 1-2: Auxiliary power is used only if two sensors are connected to the transmitter.

Output 2-

Output 2+

Output 1-

Output 1+

Snsr 2 Gnd (SHIELD)

Snsr 2 IN (RED)

Snsr 2 V+ (BLACK)

Snsr 1 Gnd (SHIELD)

Snsr 1 IN (RED)

Snsr 1 V+ (BLACK)

Internal open-collector

output circuit

15Ω

Isolation

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

Outputs

page 2 of 8 ‡ SIGNET 8450-3 Pressure Transmitter

Page 3

3.1 System Power/Loop Connections

Stand-alone application, no current loop used

Transmitter

Terminals

Loop2-

Loop2+

Sys. Pwr. Loop Sys. Pwr. Loop + AUX Power AUX Power +

NC NC

5 4 3 2 1

See Aux power Note

Connection to a PLC/Recorder, separate supply

Transmitter

Terminals

Loop2-

Loop2+

Sys. Pwr. Loop Sys. Pwr. Loop + AUX Power AUX Power +

Note:

AUX power required only where two sensors are used

6 5 4 3 2 1

See Aux power Note

Power Supply DC 12 - 24 V

DC 12 - 24 V

PLC or Recorder

Power Supply Power Supply

Channel 2 4-20 mA in Channel 2 4-20 mA in Channel 1 4-20 mA in Channel 1 4-20 mA in

Connection to a PLC with built-in power supply

Transmitter

Terminals

Loop2-

Loop2+

Sys. Pwr. Loop Sys. Pwr. Loop + AUX Power AUX

Power +

6 5 4 3 2 1

Internal PLC Connection

PLC

Terminals

Power Supply Ground

Power

Supply Channel 2

4-20 mA in Channel 2

4-20 mA in Channel 1

4-20 mA in

Example: Two transmitters connected to PLC/Recorder

Loop2-

Loop2+

Sys. Pwr. Loop Sys. Pwr. Loop + AUX Power AUX Power +

Loop2-

Loop2+

Sys. Pwr. Loop Sys. Pwr. Loop +

Transmitter 1 Transmitter 2

AUX Power AUX Power +

6 5 4 3 2 1

with separate power supply

DC 12 - 24 V

PLC or Recorder

- Channel 4 + Channel 4

- Channel 3 + Channel 3

- Channel 2 + Channel 2

- Channel 1 + Channel 1

See AUX power note

Power Supply Power Supply

3.2 Sensor Input Connections

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 400 ft. (122 m) of the transmitter.

• If your system uses two sensors, the total length of cable connected to the transmitter is limited to 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.)

J-box

Transmitter

Silver (Snsr 2 Gnd)

Red (Snsr 2 IN)

Black (Snsr 2 V+)

Silver (Snsr 1 Gnd)

Red (Snsr 1 IN)

Black (Snsr 1 V+)

+GF+ SIGNET 2450 Pressure Sensors

Terminals

Transmitter

A + B + C ≤ 400 ft. (122 m)

A + B ≤ 400 ft. (122 m)

Transmitter

≤ 400 ft. (122 m)

page 3 of 8‡ SIGNET 8450-3 Pressure Transmitter

Page 4

3.3 Open Collector Output

The Open Collector output can be used as a switch that responds when the process variable moves above or below a setpoint.

• Low: Output triggers when process variable is less than the setpoint. The output will relax when the process variable moves above the setpoint plus the hysteresis value.

• High: Output triggers when process variable is greater than the setpoint. The output will relax when the process variable moves below the setpoint plus the hysteresis value.

Process

Delta Pressure (Differential Mode)

If two sensors are connected to the transmitter, the DELTA (Sensor 1 - Sensor 2) can be assigned to output. To enable differential mode, the selected output's "Source" selection must be set to "DP".

For pressure and temperature transmitters ensure Sensor 1 is equal to ID 1: Sensor 1 - Sensor 2 Difference = 60

Example: 4-20 mA

Sensor 1 (80)

Sensor 2 (20)

+GF+ SIGNET

Loop1 Source: DP Loop1 Range: 0-120 Loop1: = 12.00 mA

ENTER

Hysteresis

Example: Output Output1 Source: DP Output1 Mode: Low

Low Setpoint

Output1 Setpoint: 70 Output1 = ON

Time

Output active

Output inactive

Process

High Setpoint

Hysteresis

Time

VIEW menu

• During normal operation, the ProcessPro displays the VIEW menu.

• When using the CALIBRATE or OPTIONS menus, the ProcessPro will return to the VIEW menu if no activity occurs for 10 minutes.

• To select the item you want displayed, press the UP or DOWN arrow keys. The items will scroll in a continuous loop.

• Changing the display selection does not interrupt system operations.

• No keycode is necessary to change display selection.

• Output settings cannot be edited from the VIEW menu.

Pressure

Pres1: 4.5 psi Pres2: 2.3 psi

ENTER

View Menu

Display Description

Press1: 7.89 psi Press2: 2.45 psi

Delta Pressure:

3.21 psi

Loop 1 Output:

12.00 mA

Loop 2 Output:

7.65 mA

Last Cal 06-30-00

page 4 of 8 ‡ SIGNET 8450-3 Pressure Transmitter

Monitor Pressure 1 and Pressure 2 simultaneously. This is the Factory Preset display.

Monitor the difference between Pressure 1 and pressure 2. (Press1 - Press2)

Monitor Loop 1 and Loop 2 mA outputs. This display will revert to the factory preset after 10 minutes.

Monitor date for scheduled maintenance or date of last calibration. This display will revert to the factory preset after 10 minutes.

Page 5

ProcessPro Editing Procedure:

Step 1. Press and hold ENTER key:

• 2 seconds to select the CALIBRATE menu

• 5 seconds to select the OPTIONS menu.

Step 2. The Key Code is UP-UP-UP-DOWN keys in sequence.

• After entering the Key Code, the display will show the first item in the selected menu.

Step 3. Scroll menu with UP or DOWN arrow keys. Step 4. Press RIGHT ARROW key to select menu item to be edited.

• The first display element will begin flashing.

Step 5. Press UP or DOWN keys to edit the flashing element.

• RIGHT ARROW key advances the flashing element.

Step 6. Press ENTER key to save the new setting and return to Step 3.

Notes on Step 1:

• The View Menu is normally displayed.

• The CALIBRATE and OPTIONS menus require a KEY CODE.

Press & hold for access:

VIEW

ENTER

Notes on Step 2:

If no key is pressed for 5 minutes while display is showing "Enter Key Code", the display will return to the VIEW menu.

CALIBRATE: ----

Enter Key Code

2s 5s

CALIBRATE

OPTIONS

Notes on Steps 3 and 4:

• Refer to pages 6 and 7 for complete listing of menu items and their use.

• From the Step 3 display, pressing the UP and DOWN keys simultaneously will return the display to the VIEW menu.

• If no key is pressed for 10 minutes, display will also return to the VIEW menu.

Step 3: Finished Editing?

Press the UP and DOWN keys simultaneously after saving the last setting to return to normal operation.

CALIBRATE: *---

Enter Key Code

CALIBRATE: **--

Enter Key Code

CALIBRATE: ***-

Enter Key Code

Switch ID:

Step 3

Output1 Setpnt:

10.00 psi >

First item in CALIBRATE menu

Step 4

Notes on Steps 5 and 6:

• All output functions remain active during editing.

• Only the flashing element can be edited.

• RIGHT ARROW key advances the flashing element in a continuous loop.

• Edited value is effective immediately after pressing ENTER key.

• If no key is pressed for 10 minutes unit will restore the last saved value and return to step 3.

• Step 6 (pressing ENTER key) always returns you to Step 3.

• Repeat steps 3-6 until all editing is completed.

Output1 Setpnt:

10.00 psi

Step 5: Made an Error?

Press the UP and DOWN keys simultaneously while any element is flashing. This will recall the last saved value of the item being edited and return you to Step 3.

Output1 Setpnt:

00.00 psi

Output1 Setpnt: 0

.00 psi

Step 6

Output1 Setpnt:

09.00 psi >

Step 5

Output Setpnt:

09.00 psi

Output1 Setpnt:

Saving

ENTER

page 5 of 8‡ SIGNET 8450-3 Pressure Transmitter

Page 6

Calibrate Menu

Display

(Factory settings shown)

Description

Switch ID

psi >

Pressure Units:

psi >

Set:

Pressure1 >

Set:

Pressure2 >

Loop 1 Source

Press1 >

Loop 1 Range: psi

0.0 → 100.0 >

Output1 Source

Press1 >

Reverses the identification of Sensor inputs: Pressure 1 becomes identified as Pressure 2, Pressure 2 becomes identified as Pressure1. Use this function to make corrections if the sensors are in the wrong order for a DELTA PRESSURE measurement.

Select Pressure units for both input channels: psi, bar or kPa.

Provides a maximum 5 psi offset to match 8450 to external reference. Enter “-999” to restore the original Factory calibration value. Changes to this setting will become effective when the display exits the Calibrate menu.

Select the INPUT SIGNAL represented by this 4-20 mA output: Pressure 1, Pressure 2, or Delta Pressure (Pressure1 - Pressure2.)

Check the 2450 Sensor instructions for the range capability of your sensor. Be sure to modify this setting if you change the Pressure Units.

Select the INPUT SIGNAL represented by this Open Collector Output: Pressure 1, Pressure 2, or the Delta Pressure (Pressure1 - Pressure2.)

Output1 Mode

Select the mode of operation for this Open Collector output: OFF, LOW or HIGH.

Low >

Output1 Setpnt:

The Open Collector Output will be activated when the pressure reaches this value. Be sure to modify this setting if you change the Pressure Units.

10.0 psi >

Output1 Hys:

The Open Collector Output will be deactivated at High or Low selection).

Last Cal

Use this “note pad” to record important dates, such as annual recertification or scheduled maintenance.

06-30-01 >

Settings will repeat for Loop 2 and Output 2.

setpoint ± Hysteresis (depending on

page 6 of 8 ‡ SIGNET 8450-3 Pressure Transmitter

Page 7

Options Menu

Display

(Factory settings shown)

Contrast:

Decimal

***.* >

Averaging

Off >

Output1 Active

Low >

Output2 Active

Low >

Loop 1 Adjust:

4.00 mA >

Loop 1 Adjust:

20.00 mA >

Description

Adjust the LCD contrast for best viewing. A setting of 1 is lower contrast, 5 is higher. In general, select lower contrast if the display is in warmer ambient surroundings.

Set the decimal to the best resolution for your application. The display will automatically scale up to this restriction. Select ****., ***.*, **.** or *.***.

OFF provides the most instantaneous response to changes in pressure. It is the preferred option in systems where the measurement is very stable. Select LOW or HIGH averaging if your process experiences frequent or extreme fluctuations in pressure.

Active HIGH: This setting is used to turn a device (pump, valve) ON at the setpoint. Active LOW: This setting is used to turn a device OFF at the setpoint.

Adjust the minimum and maximum current output. The display value represents the precise current output. Adjustment limits:

• 3.80 mA < 4.00 mA > 5.00 mA

• 19.00 mA < 20.00 mA > 21.00 mA Use this setting to match the system output to any external device.

Test Loop 1:

Press UP and DOWN keys to manually order any output current value from 3.6 mA to

Test Loop 2:

21.00 mA to test the output loop.

Test Output 1

Press UP and DOWN keys to manually toggle the Open Collector output state.

Test Output 2

Settings will repeat for Loop 2 and Output 2.

page 7 of 8‡ SIGNET 8450-3 Pressure Transmitter

Page 8

Troubleshooting

Display Condition Suggested SolutionsPossible Causes

"Check Sensor?"

"Too much error

CHECK SENSOR"

"Reset to Factory

Calibration"

Relay is always activated

"SETUP READ ERROR

Press Any Key"

Product Modifications

In August 2000 the operation of the 8450 Pressure Transmitter was modified to allow control of the decimal in the display via the OPTIONS menu. Products manufactured prior to August 2000 are limited to one fixed decimal place (XXX.X).

• Sensor not wired properly.

• Sensor connected to 8450 while power is on.

• Defective sensor.

The value entered in Set Pressure field is greater than 5 psi deviation from sensor input. (The 8450 allows a maximum of 5 psi calibration offset.)

Value in SET PRESSURE field is -999.

Hysteresis value too large.

Memory fault occurred.

• Correct sensor wiring.

• Recycle power to 8450 after all sensors are connected.

• Replace defective sensor.

• Confirm calibration values.

• Remove sensor from installation, check 8450 reading (should be zero). If necessary, Set Pressure to zero, reinstall sensor, then recalibrate.

Entering "-999" in this field will remove all user calibration input and restore the factory values.

Reset hysteresis value in Calibrate menu.

• Press any key to reload factory presets.

• Reprogram all setpoints.

• If this message appears again, replace the 8450.

‡ SIGNET

Signet Scientific Company, 3401 Aerojet 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

GEORGE FISCHER ‡ Piping Systems

page 8 of 8 ‡ SIGNET 8450-3 Pressure Transmitter