GEORGE FISCHER Signet 5090 Manual

‡ SIGNET 5090 Flow Monitor
3-5090.090-1
1. Compatible Sensor Wiring
5090 Rear
Terminal
Connection
Sensor
Input
2. Calibration
The 5090/515 flow metering system utilizes the AC signal ampli-
tude from the 515 sensor to drive the 5090 meter.
The front panel meter movement adjustment (SPAN) is easily
accessed under the removable front window for simple calibration.
A dial kit with six dial ranges, assorted flow unit/multiplier decals,
and dial installation instructions is included for your convenience.
Equipment Required
• Frequency counter
• ‡ SIGNET 515 Sensor installed in process line
• Maximum (stable) flow rate induced in process line
• Standard and phillips head screwdriver
Procedure
1. Induce the maximum (stable) flow rate in your process line.
2. Using the frequency counter, monitor and record the 515
sensor frequency output (Hz), see diagram below:
Red
Black
Sensor Frequency = ___________________________ Hz
Technical note:
Sensor frequency MUST be greater than 45 Hz for full scale
needle deflection.
3. Calculate the actual maximum flow rate in your process line as
follows:
Maximum flow rate = Sensor frequency (step 2) X A-Factor
(Section 6)
Maximum Flow rate = ___________________________________
silver (shield)
black (AC signal out)
red (AC signal out)
Frequency
counter
5 6
4
3 7
2 8
1 9
0 10
GPM SPAN
X100
+GF+ SIGNET
CAUTION!
Follow instructions carefully to avoid personal injury.
515
Technical Notes:
• Use 2-conductor shielded cable for sensor cable splices up to
60 m (200 ft)
• Maintain cable shield through cable splice.
• Route sensor cable away from AC power lines.
515 Circuit
Rotor
w/magnets
4. Install the appropriate dial face and flow unit/multiplier decal for
the maximum flow rate (step 3). Refer to dial installation
instructions included with dial kit.
The dial kit includes the following:
Assorted Unit and multiplier Decals:
X 10
X 100
X 1,000
X 10,000
Example: A flow system's maximum flow rate is 18.3 GPM.
The proper dial and flow unit/multiplier decal for this flow
system is: 0 - 2 dial + GPM X 10 decal
5. Disconnect frequency counter. Access and adjust the "SPAN"
potentiometer to match the calculated maximum flow rate from
step 3. After adjustment, calibration is complete.
0.6
0.4
0.2
0
5090
red 5
4 6
3
7
2 8
1 9
black 0 10
GPM SPAN
X 100
Shield
+ GF +
SIGNET
1
1
5
4 6
5
4 6
3 7 3
m /h
3 7
GPM
2 8
2 8
x 10
0 2 LPM
1 9
x 1,000
1 9
0 2
0 SPAN 10
0 10
SPAN
SPAN
SPAN
1
0.8 1.2
1.4
SPAN
1.6
1.8
2
GPM SPAN
X 100
+GF+ SIGNET
ENGLISH
SPAN
6 Dials:
0-2
0-4
0-6
0-8
0-10
0-100