Georg Fischer 5500 Operating Manual

Signet 5500 Flow Monitor

d

r

English

*3-5500.090-1*

3-5500.090-1 Rev. K 3/06 English

Contents

1. Power Connections

2. Compatible Sensor Wiring

3. Sensor Pulse Output Connections

4. Auxiliary Pulse Output Connections

5. Totalizer Reset Connections

6. 4 - 20 mA Current Output Connections

7. Relay Connections

Remove terminal blocks for easy wiring

1.

2

+

1

Gnd

+

Gnd

Total

AUX

Std. Sensor

U

L

LISTED
77CJ

Freq. IN

Freq. IN

Sen. Pwr.

Open Collector
Sensor

12-24 V

10 W

+

Iso. Gnd

output

PLS

output

-

Flow

reset

Patent No. D376,328

CAUTION!

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

• Follow instructions carefully to avoid personal injury.

8. Output Functions

9. Menu Functions

10. Parts and Accessories

11. Specifi cations

12. Quick Reference Menu Parameters

13. Troubleshooting

14. Maintenance

2.

3.

Std. Sensor

U

L

LISTED
77CJ

Freq. IN

Freq. IN

Open Collector
Sensor

2

+

1

Gnd

+

Gnd

Total

AUX

PLS

Iso. Gnd

Sen. Pwr.

output

output

12-24 V

10 W

+

-

Flow

reset

Patent No. D376,328

1. Power Connections

2. Compatible Sensor Wiring

CAUTION!
Never connect 115 VAC or 230 VAC to rear power

terminals. High voltage AC will damage instrument
and void warranty.

5500

12-24 V

10 W

Terminals

External power
supply

-

+

12 - 24 VDC

OR

12 - 24 VAC

Std. Sensor

= Double Insulate

= DC or AC powe

+

-

Technical Notes:

• To reduce the possibility of noise interference, isolate AC power lines from signal lines.

• Maximum 4-20 mA loop impedance (sec. 6) is affected by the supply voltage.

Freq. IN

Freq. IN

Iso. Gnd

Sen. Pwr.

Open Collector
Sensor

Signet Sensors:

Red

Black

Shld.

Red

Black

Shld.

5500
Terminals

515
525
2517

2000
2507
2536
2540
2550
Vortex*

t

3. Sensor Pulse Output Connections (sec. 8.1)

3.1 Signet instrument with internal open-collector
excitation voltage and pull-up resistor.

Technical Notes:

• Use 2-conductor shielded twisted-pair cable for output lines up
to 30 m (100 ft.) max.

• Pull-up resistor NOT REQUIRED when connected to

+

100Ω

PLS

output

Gnd

5500
Terminals

Freq. IN*
Red

Shld

Iso. Gnd

Red

Shld

Signet

Instrument

*(Open-collector sensor
terminals)

Signet instruments.

3.2 Pulse output connection options for instruments without internal open-collector excitation voltage and pull-up resistor shown below.

NPN sink input

+

28 VDC

max.

-

Gnd

Input

Other

instrument

PNP source input

100Ω

+

PLS

output

Gnd

5500
Terminals

10 kΩ

Input

Gnd

-

+

External power supply

Other

instrument

28 VDC

max.

100Ω

+

PLS

output

10 kΩ

Gnd

5500
Terminals

4. Auxiliary Pulse Output Connections

4.1 Pulse mode (sec. 8.2) - External device control

• The auxiliary output can be confi gured for either TTL, CMOS,
or open-collector compatible inputs using the proper pull-up
resistor and an external power supply.

• TTL inputs: An external 5 VDC power supply and 10 kΩ pull­up resistor is recommended.

• CMOS inputs:

An external 3 to 15 VDC power supply and 10 kΩ pull-up

resistor is recommended.

• 12 VDC Open-collector inputs:

An external 12 VDC power supply and 10 kΩ pull-up resistor is

recommended.

• 24 VDC Open-collector inputs:

An external 24 VDC power supply and 10 kΩ pull-up resistor is

recommended.

4.2 Totalizer pulse mode (sec. 8.2)

• External counter or accumulator inputs without internal open­collector excitation voltage and pull-up resistor.

NPN sink input

Counter

100Ω

+

AUX

output

Gnd

5500
Terminals

10 kΩ

Input

Gnd

-

+

External power supply

or

Accumulator

28 VDC

max.

External power supply

10 Ω

+

-

3 - 28

VDC

Signal output

Signal ground

100Ω

+

AUX

output

Gnd

5500
Terminals

Technical Notes:

• Open-collector transistor, optically isolated, 5 mA max. sink,
28 VDC max. pull-up voltage.

• Programmable pulse width, 0.10 - 999. seconds (sec. 9.2 M)

• Selectable Active high or active low pulse logic (sec. 9.3 J).

• Use 2-conductor shielded twisted pair cable for AUX output
lines to 30 m (100 ft) max.

External power supply

+

28 VDC

max.

Counter

or

Accumulator

PNP source inpu

100Ω

+

AUX

output

Gnd

5500
Terminals

10 kΩ

-

Gnd

Input

2

Signet 5500 Flow Monitor

5. Totalizer Reset Connections (sec. 8.3)

Momentary pushbutton switch

2

1

To ta l
reset

5500
Terminals

6. 4-20 mA Current Output Connections (sec. 8.4)

Technical Notes:

• Use 2-conductor shielded twisted pair cable for reset lines up to
30 m (100 ft) max. External reset switch overrides software
security feature (section 9.3 I).

• To reduce the possibility of AC noise interference, isolate AC
power lines from reset lines.

Fuse**

1/8A

+

*

4

20

-

-

+

4-20

mA

7. Relay Connections

Two internal relay contact sets (COM, NO, and NC) may be used
for external device control. Front panel LED annunciators indicate
the activation status of each relay. Each relay can control up to
two devices simultaneously, as shown. Relay operation modes
include Low alarm, High alarm, Pulse, and Totalizer (sec. 8.5).

Common device connections include:

• Pulse mode - metering pump control

• Pulse mode - solenoid valve control

• Low or High mode - warning lamps

• Low or High mode - bells or sirens

• Low or High mode - external heavy-duty relay

5500
Terminals

mA

Technical Notes:
**1/8A fuse recommended (customer supplied)
* 4-20 mA output is internally powered (non-isolated), maximum
loop impedance 350 Ω with a 12 V instrument supply voltage,
950 Ω with a 24 V instrument supply voltage.

To isolate output and prevent ground loop problems:

1. Use monitor device with isolated inputs, or

2. Use separate DC supply for 5500 and monitor device, or

3. Power 5500 with12 - 24 VAC step down transformer

Relay

Energized

NO

5500

Terminals

NO

C

NC

+

External AC/DC

Relay 1Relay 2

NO

power

Relay

De-energized

C

NO

NC

C

NC

Device

+

A

-

-

-

Device

B

+

C

NC

Wiring Example Right
Device A IS powered when relay 2 is de-energized (front panel
LED "off"). Power is discontinued when the relay 2 setpoint is
reached (front panel LED "on"). Device B IS NOT powered when
the relay 2 is de-energized. Power is applied after the relay 2
setpoint is reached.

Signet 5500 Flow Monitor

Technical Notes:

• Maximum relay contact ratings: 5 A @ 30 VDC, 5 A @ 125 VAC,
or 3 A @ 250 VAC

• An external heavy-duty relay must be used for devices with
surge currents or operating currents that exceed the above
specifi cations.

3

8. Output Functions

This section gives a detailed description of all 5500 output functions.

8.1 Sensor pulse output (sec. 3): This output emits an open-collector frequency equal to the sensor input. The output connects directly
to a second Signet instrument for expanded process control with a single sensor input (sec. 3.1). The output is an open-collector type
that requires an external pull up resistor and power supply for other instrument inputs (sec. 3.2).

8.2 Auxiliary pulse output (sec. 4): The auxiliary output can be confi gured as Low alarm, High alarm, Pulse or Totalizer output. Output
logic can be selected for either active low (factory default) or active high operation (sec. 9.3 J). The auxiliary output is an open-collector
type that requires an external pull-up resistor and power supply to operate. Refer to diagrams A - C below for operation details.

A. LOW alarm mode

The output is active (relay energized) when the flow drops below the
setpoint, and is inactive (relay de-energized) when the flow rises
above the setpoint plus hysteresis (sec. 9.2 F-G, 9.2 J-K).

• Auxiliary output: ideal for external device
inputs (sec. 4)

Flow

• Relay outputs: ideal for external warning
lamps, sirens, etc. (sec. 7)

Low setpoint=

Adjustable hysteresis=

Output active (relay energized)=

Output inactive (relay de-energized)=

B. HIGH alarm mode

The output is active (relay energized) when the flow rises above the
setpoint and is inactive (relay de-engergized) when the flow falls
below the setpoint plus hysteresis (sec. 9.2 F-G, 9.2 J-K).

• Auxiliary output: ideal for external device
inputs (sec. 4)

• Relay outputs: ideal for external warning
lamps, sirens, etc. (sec. 7)

High setpoint=

Adjustable hysteresis=

Output active (relay energized)=

Output inactive (relay de-energized)=

Flow

C. PULSE mode
The output is active (relay energized) for the programmed pulse width each time the programmed pulse volume is measured by the flow
sensor (sec 9.2 H-I, 9.2 L-M).

• Auxiliary output: ideal for external device control (sec. 4)

• Relay outputs: ideal for metering pump or solenoid valve control (sec. 7)

Flow

Sensor

FLOW

volume 2volume 3volume 4volume 5volume 6

volume

volume 1

= Output active
(relay energized)

= Output inactive
(relay de-energized)

= Programmed pulse
volume (e.g. 12.5 Gal.)

= Programmed pulse
width (relay energize time)

Totalizer function
The output emits an adjustable signal pulse width for each whole engineeing unit measured by the flow sensor (also displayed on totalizer).
To enable the totalizer function, the operator must set the relay or auxiliary pulse volume setpoint to 1.0000 (sec. 9.2 H, 9.2 L).

• Totalizer function: ideal for external counter or accumulator use (sec 4.2)

adjustable

pulse width

VIEW menu

totalizer display

=

1234

8.3 Totalizer reset (sec. 5): This feature allows the operator to reset the totalizer with a dry switch contact closure at any time.
The external reset switch overrides software security feature (sec. 5).

8.4 4-20 mA output (sec. 6): The 4-20 mA output is internally powered by the instrument. 4 mA and 20 mA setpoints are fully adjustable
within the programmed fl ow range (sec. 11 B). The output can also be reverse spanned.

8.5 Relay 1 and 2 outputs (sec 7): Relay outputs 1 and 2 can be independently confi gured as Low alarm, High alarm, Pulse or Totalizer
output. Refer to diagrams A - C above for operation details.

4

Signet 5500 Flow Monitor