GF Signet 5500 User manual

CAUTION!
Never connect 115 VAC or 230 VAC to rear power
terminals. High voltage AC will damage instrument and
void warranty.
CAUTION!
• Remove power to unit
before wiring input and
output connections.
• Follow instructions
carefully to avoid
personal injury.
Signet 5500 Flow Monitor English
Technical Notes:
• To reduce the possibility of noise interference, isolate AC power lines from signal lines.
• Maximum 4 to 20 mA loop impedance (sec. 6) is affected by the supply voltage.
1. Power Connections 2. Compatible Sensor Wiring
2000
2507
2536
2540
2100
2537
2551
2552
515
525
Open Collector
Sensor
Std. Sensor
Freq. IN
Sen. Pwr.
Freq. IN
Iso. Gnd
Red
Black
Shield
Red
Black
Shield
Signet Sensors:
5500
Terminals
= Double Insulated
= DC or AC power
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
8. Output Functions
9. Menu Functions
10. Parts and Accessories
11. Specifications
12. Quick Reference Menu Parameters
13. Troubleshooting
14. Maintenance
Tot al
reset
AUX
output
PLS
output
1 2
Gnd
+
+
-
+
Gnd
Freq. IN
Sen. Pwr.
Freq. IN
Iso. Gnd
Std. Sensor
Patent No. D376,328
Flow
Open Collector
Sensor
12-24 V
10 W
LISTED
77CJ
U
L
Tot al
reset
AUX
output
PLS
output
1 2
Gnd
+
+
-
+
Gnd
Freq. IN
Sen. Pwr.
Freq. IN
Iso. Gnd
Std. Sensor
Patent No. D376,328
Flow
Open Collector
Sensor
12-24 V
10 W
LISTED
77CJ
U
L
1. 2. 3.
Remove terminal blocks for easy wiring
*3-5500.090-1*
3-5500.090-1 Rev. L 01/12 English
-
+
12-24 V
10 W
-
+
12 - 24 VDC
OR
12 - 24 VAC
5500
Terminals
External power
supply

2Signet 5500 Flow Monitor
4.2 Totalizer pulse mode (sec. 8.2)
• External counter or accumulator inputs without internal open-collector excitation voltage and pull-up resistor.
+
Gnd
PLS
output
N
+
Gnd
PLS
output
N
 
+
-
+
-
5500
Terminals
28 VDC
max.
Other
instrument
Gnd
Input
PNP source input
5500
Terminals
External power supply
28 VDC
max.
Other
instrument
Gnd
Input
NPN sink input
• TTL inputs: An external 5 VDC power supply and 10 kpull-up
resistor is recommended.
• CMOS inputs: An external 3 to 15 VDC power supply and 10 k
pull-up resistor is recommended.
• 12 VDC Open-collector inputs: An external 12 VDC power
supply and 10 kpull-up resistor is recommended.
• 24 VDC Open-collector inputs: An external 24 VDC power
supply and 10 kpull-up resistor is recommended.
3.2 Pulse output connection options for instruments without internal open-collector excitation voltage and pull-up resistor.
+
Gnd
PLS
output
N
+
Gnd
PLS
output
N
 
+
-
+
-
5500
Terminals
28 VDC
max.
Other
instrument
Gnd
Input
PNP source input
5500
Terminals
External power supply
28 VDC
max.
Other
instrument
Gnd
Input
NPN sink input
+
Gnd
AUX
output

+
-
N
5500
Terminals
Signal output
Signal ground
3 - 28
VDC
External
power supply
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
Signet instruments.
+
Gnd
PLS
output
Shld
Red

5500
Terminals
Signet
Instrument
Iso. Gnd
Shld
Freq. IN*
Red
*(Open-collector sensor
terminals)
4. Auxiliary Pulse Output Connections
4.1 Pulse mode (sec. 8.2) - External device control
• The auxiliary output can be configured for either TTL, CMOS,
or open-collector compatible inputs using the proper pull-up
resistor and an external power supply.
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.

3
Signet 5500 Flow Monitor
+
-
-
+ -
+
Relay 1Relay 2
NC
C
NO NC
C
NO
NC
C
NO NC
C
NO
Device
A
External AC/DC
power
Device
B
5500
Terminals Relay
De-energized Relay
Energized
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
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.
6. 4 to 20 mA Current Output Connections (sec. 8.4)
+
-
4-20
mA 5500
Terminals
-
+
420
mA
*
Fuse**
1/8A
Technical Notes:
** 1/8 A fuse recommended (customer supplied)
* 4-20 mA output is internally powered (non-isolated), maximum
loop impedance 350 with a 12 V instrument supply voltage,
950 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 with 12 - 24 VAC step-down transformer.
12
Tot a l
reset
5500
Terminals
Momentary pushbutton switch
5. Totalizer Reset Connections (sec. 8.3)
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.
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
or operating currents that exceed the above specifications.

4Signet 5500 Flow Monitor
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)
• Relay outputs: ideal for external warning
lamps, sirens, etc. (sec. 7)
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)
Flow
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
volume 1
= Programmed pulse
volume (e.g. 12.5 Gal.)
= Programmed pulse
width (relay energize time)
= Output active
(relay energized)
= Output inactive
(relay de-energized)
volume
volume 2volume 3volume 4volume 5volume 6
Flow
Sensor
Low setpoint=
Adjustable hysteresis=
Output active (relay energized)=
Output inactive (relay de-energized)=
High setpoint=
Adjustable hysteresis=
Output active (relay energized)=
Output inactive (relay de-energized)=
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
1234
VIEW menu
totalizer display
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 to 20 mA output (sec. 6): The 4 to 20 mA output is internally powered by the instrument. 4 mA and 20 mA setpoints are fully
adjustable within the programmed flow 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 configured as Low alarm, High alarm, Pulse or Totalizer
output. Refer to diagrams A - C above for operation details.
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 configured 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.

5
Signet 5500 Flow Monitor
9.1 VIEW Menu
Flow & resettable total
Permanent total
Last calibration
Loop output
Press keys in sequence,
A.
B. B.
C.
A.
OPTIONS = OPTIONS =
To reset
total press:
ENTER
ENTER
To reset
total press:
Range
(display shows: )
OR
Relay 1
Relay 2
Aux output
quick
press
To exit without changes:
(sec. 9.3I) (sec. 9.3I)
A.
B.
C.
D.
E.
F.
G.
H.
Choose: Change: Save:
H↓
A↑
1 2 3
Menus:
• VIEW menu (sec. 9.1): The VIEW menu is displayed during
standard operation. The operator can navigate freely through the
menu by pressing either UP or DOWN arrow keys. The VIEW
menu also offers a resettable totalizer feature that allows the
operator to reset the displayed total at the press of a button.
• CALIBRATE Menu (sec. 9.2): The CALIBRATE menu contains
all critical display setup and output parameters. A simple security
code feature prevents unauthorized tampering. The operator is
required to enter a simple access code for menu access. The
same code also unlocks OPTIONS menus.
• OPTIONS Menu (sec. 9.3): The OPTIONS menu contains setup
and display features that are seldom accessed for minor display
or output adjustments.
ENTER
OPTIONS
(sec. 9.3)
CALIBRATE
(sec. 9.2)
VIEW
(sec. 9.1) 2
seconds 5
seconds
Press & hold ENTER key
for menu
access:
Menu Displays A - H:
(Factory default displays shown)
A. Flowrate and resettable total display: Can be
reset by the front panel keypad or by remote
reset switch (sec. 5). A simple access code
feature prevents accidental total reset,
when enabled (sec. 9.3 I). External reset
switch inputs override security feature, when
enabled.
B. Permanent total display: Records volumetric
flow total for the life of the product and is
non-resettable.
C. Loop output display: Shows the current
output level at the rear terminals.
D. Flow Range display: Shows the programmed
min and max meter range (sec. 9.2 B)
E. Relay 1 display: This display shows the
programmed operation mode and setpoint
for relay 1 (sec. 9.2 F-I)
F. Relay 2 display: This display shows the
programmed operation mode and setpoint
for relay 2 (sec. 9.2 F-I).
G. Aux output display: This display shows the
programmed operation mode and setpoint
for the auxiliary output (sec. 9.2 J-M).
H. Last calibration: This display shows a user-
defined setup date for maintenance records.
This feature is not an internal timer or
calendar.
9. Menu Functions
To access either CALIBRATE or OPTIONS menus, press and hold
the ENTER key as illustrated below: