AW-Lake FAC-R Operating Manual

COMPANY

FAC-R Frequency to Analog Converter

Installation, Operating &

Maintenance Manual

Table of Contents

Product Overview ��3

Operation �� 3

Technical Specications ��3

Wiring the Connectors ��4

Scaling Analog Output �� 5

LED Status ��7

Bluetooth Application ��7

FAC Terminal ��7

Getting Started �� 7

Menu Navigation ��8

System Settings �� 9

Output Settings �� 9

Output Calibration ��10

Linearizer �� 11

Computer Toolkit �� 11

Getting Started �� 11

Toolkit Overview �� 12

Scaling Analog Outputs �� 12

Analog Output type and Forced Outputs �� 13

Analog Output Calibration ��14

Linearizer �� 16

Bluetooth Setting �� 16

Upgrading the FAC ��17

Product Overview

AW-Lake Company’s FAC Frequency to Analog Converter is a remote mount unit that takes an incoming frequency and converts to a linear voltage or current output. This unit will be replacing the FIV/FIA, which is the existing design that has been around since 2002. The new design is RoHS compliant and utilizes surface mount components and a more up-to-date circuit design. In addition, three new features have been added. A linearizer, Bluetooth mobile app, and a computer toolkit to increase customization.

Operation

The basic function of this converter is to take an incoming frequency and convert it to both a current and voltage analog output. The analog output is linear with respect to the frequency input with the maximum analog output scaled to a user selectable input frequency. The full input frequency range is 0.25Hz to 5,000Hz. The max output is +2.5% of the selected scaled output to account for overshoot. Error indication will be available in the future in the form of an output that is +10% of max scaled factor.

Technical Specications

Supply Voltage

10-28 VDC

Input Frequency

0.25Hz to 5KHz 5V to 24V max amplitude

Ambient Temperature

-40°F to +185°F (-40°C to +85°C)

Analog Output Options

4-20mA 0-5V, 1-5V 0-10V, 2-10V

Standard Max Output

+2.5% of max scaling (20.5mA/5.125V /10.25V)

Error Indication

+10% of max scaling (22mA/5.5V /11V)

Analog Output Resolution

16 Bit

Analog Output Update Time

25m Sec Min.

x1000 x100 x10 x1

Wiring the Connectors

Connector 1

Pin 1: Sensor Supply (Equal to supply voltage) Pin 2: (-) Ground Pin 3: (+) Pulse input 1 Pin 4: (+) Pulse input 2 (Not available at this time)

Connector 2

Pin 5: (V) Voltage Signal Output Pin 6: Signal Ground Pin 7: (mA) Current Signal Output

Connector 3

Pin 8: (+) 10- 30 VDC Pin 9: (-) Ground

*Ground pins 2, 6, and 9 are all internally connected and not isolated.

SCALING ANALOG OUTPUT

On the front panel, there are four rotary switches. It is not necessary to power the unit down to change the settings. The switches are read from left to right in order of decreasing value as shown in the figure to the right.

*Scaling is also possible with Bluetooth app and toolkit, page 8 and 12

If the maximum frequency is known at which the resulting output should be 20mA, set the switches to this frequency. The output will automatically scale itself. If the maximum frequency is not known, the

correct switch settings can be determined in 2 ways.

The following equation can be used to determine what the switch setting should be for any particular meter and flow rate

Switch Setting= (K - Factor * Max.Flowrate )

(Time Base)

K-Factor is the flow meters scaling factor in pulses/volume (found on calibration sheet) Max. Flowrate is the flowrate at which the analog output should be at its max. Note: K-Factor and Max. Flowrate must have same units, ie. Gallon/ GPM, Liter/LPM. Time Base is the time scaling factor:

• 1 for Volume/ Sec

• 60 for volume/ minute

• 3600 for volume/ hour

• 86400 for volume/ day

Ex. K-Factor = 89,100 pulses/gallon, Max Flow rate = 0.2gpm, Time base = Min (60)

Switch Setting= (89,100 * 0.2 )

60 = 297

If the numerical maximum flow rate is not known, the unit can be calibrated in systems with the following:

1. Adjust system flow to the rate at which analog output should read 20mA

2. Set scaling switches to a value known to be above the maximum frequency (ex. 9, 49, 799, 2999). If unsure, use 4999.

3. If S1 is 0, go to step 4. Decrease S1 until output shows 20mA. Then increase its setting by one unless value is 4, in which case value should remain 4. If the switch value is 0 and the output is below 20mA, leave switch at 0 and go to next switch.

4. If S2 is 0, go to step 5. Decrease S2 until output shows 20mA. Then increase its setting by one unless value is 9, in which case value should remain 9. If the switch value is 0 and the output is below 20mA, leave switch at 0 and go to next switch. 5.

5. If S3 is 0, go to step 6. Decrease S3 until output shows 20mA. Then increase its setting by one unless value is 9, in which case value should remain 9. If the switch value is 0 and the output is below 20mA, leave switch at 0 and go to next switch.

6. Decrease S4 until output shows 20mA and leave setting. Do not increase this setting by one. The switches are now set at the frequency which will result in a 20mA output.

*Note: Wherever this procedure refers to 20mA you may substute either 5V or 10V depending

upon the output you have ordered.

LED Status

The LEDs serve as indicators and troubleshooting tools.

Yellow: has 3 states; Solid for when pulse input is zero or below 0.25Hz, Steady blink (1.32 sec) when pulse is between 0.25Hz - Max scaled output, and Fast (0.26 Sec) when pulse is above max scaled output.

+ 12 hidden pages

AW-Lake FAC-R Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual