Ruskin EFAMS Instruction Manual

Air Quality Solutions
Installation & Maintenance Manual
Model: EFAMS
Electronic Fan Inlet Air & Temperature
Measuring Station
with Electronic Controller
II-EFAMS-818/Replaces II-EFAMS-316 ALL STATED SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE OR OBLIGATION © Ruskin August 2018

APPLICATIONS
The Ruskin EFAMS Thermal Dispersion Fan Inlet
Sensor Airow Measuring System averages veloc-
ity and temperature from fan inlet sensors mounted
on the fan inlet bell, providing accurate, dependable
airow measurement from 0 to 10,000 fpm (0 to 50.8
mps) within ±2% accuracy.
The factory-assembled EFAMS Thermal Dispersion
Fan Inlet Sensor Airow Measuring System
incorporates fan inlet sensors, a router, shielded
CAT5e communications cables, and an Electronic
Controller.
Each fan inlet sensor measures ow and temperature,
sending this information to a router. The router
collects data from each sensor. The router sends
a digital output to the Electronic Controller, which
provides velocity and air temperature information on
a Liquid Crystal Display (LCD) screen. The Electronic
Controller sends the output to a Building Automation
System (BAS) through two discrete 4 to 20 mA
analog signals.
NORTH AMERICAN
EMISSIONS COMPLIANCE
United States
This equipment has been tested and found to comply
with the limits for a Class A digital device pursuant to
Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference when this equipment is operated in a
commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruc-
tion manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful interference,
in which case the user will be required to correct the
interference at his/her own expense.
Only a qualied service technician should install
this system. To avoid unsatisfactory operation or
damage to the product, strictly follow the instruc-
tions provided and do not substitute parts. Dam-
age to the product resulting from not following
the instructions or using unauthorized parts may
be excluded from the manufacturer’s warranty
coverage.
EFAMS Thermal Dispersion Fan Inlet Airflow Measuring System
Installation Instructions
IMPORTANT: In addition to these instructions,
the installation contractor shall comply with all
local and International codes and standards to
ensure proper and safe installation.
Canada
This Class (A) digital apparatus meets all the require-
ments of the Canadian Interference-Causing Equip-
ment Regulations.
Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
WARNING: Risk of Electric Shock
Disconnect power supply before making
electrical connections. Contact with compo-
nents carrying hazardous voltage can cause
electrical shock and may result in severe
personal injury or death.
The thermal dispersion sensors, router(s), cables and
Electronic Controller may ship in separate containers.
Remove the thermal dispersion sensors, router(s),
cables and the Electronic Controller from the shipping
containers and inspect the devices for damage
before installation. If multiple systems are shipped
together, take care to keep the sensors matched to
their respective routers. Remove the pastic protective
caps from the sensors after installation.
INSTALLATION
RUSKIN EFAMS THERMAL DISPERSION
2

Fan Types for the EFAMS
The Ruskin EFAMS system may be applied to the
following types of fans:
CENTRIFUGAL
Forward Curve Typical 24-64 blades
CENTRIFUGAL
Backward Curve/Airfoil Typical 9-16 blades
Also Backward Incline Typical 9-16 blades
PLENUM FAN (Plug Fan) Typical 9-16 blades
Backward Incline/Curve/Airfoil
The Ruskin EFAMS system includes the following
standard or optional components/configurations:
ELECTRONIC CONTROLLER with LCD DISPLAY –
Standard
ROUTER with MULTIPLEXER – Standard
SENSORS Including SENSOR CABLES - Standard
Sensor Cables are always 10 FT (3.05 M)
COMMUNICATION CABLES between Router and
Electronic Controller:
Shielded CAT5e with shielded RJ45 type connectors
using simple pairing:
10 FT (3.05 M) – Standard
20 FT (6.10 M) – Optional
30 FT (9.14 M) – Optional
40 FT (12.19 M) – Optional
50 FT (15.24 M) – Optional
ENCLOSURE
ABS – Standard
METAL – Optional
INLET / DENSITY
Single Inlet – Standard
1 Controller, 1 Router, 2 Sensors
Dual Inlet – Optional
1 Controller, 1 Router, 4 Sensors
Fan Array - Optional
1 Controller, 1 Router, 2 or 4 Sensors
1 Controller, 2 Routers, 6 or 8 Sensors
TRANSFORMER
Optional - AMS080 (24 VAC 40 VA)
MOUNTING OPTION
Adjustable Mounting Bracket Kit For Backward
Curve/Incline/Airfoil Fans with diameters 15” and
larger
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 3

Locating the Fan Inlet Sensors on
centrifugal Forward Curve Fans
Mounting the Inlet Sensors
Inspect the fan inlet opening to ensure no
obstructions or irregularities interfere with installation
of the sensors. Install the two fan inlet sensors
opposite one another within the fan inlet bell. Place
the sensor housing at or near the highest restriction
point of the fan inlet as possible. Be careful to not
bend or touch the thermistors while installing.
Sensors should be placed at the 12:00 o’clock and
6:00 o’clock positions, directly opposite one another
in a similar fashion for fans with the air exiting on the
right or left of the housing. See Figure 1.
Sensors should be placed at the 3:00 o’clock and
9:00 o’clock positions, directly opposite one another
for fans with the air exiting on the top or bottom of
the fan housing. See Figure 2.
On dual inlet fans, install two sensor circuits within
each fan inlet bell. Place the sensor at or near the
highest restriction point of each inlet as possible.
Use the supplied pan head, self-drilling fasteners
(included in parts bag) to fasten the fan inlet sensor
to the inlet bell. Use nylon cable clamps (included in
parts bag) to secure RJ45 cable to the inlet bell.
If the fan has a shallow inlet bell, use a box knife or
other utility knife to remove the Air Leaving Wedge,
leaving the primary sensor housing (containing the
sensor circuit) and the Air Entering Wedge. Use the
mounting hole on the Primary Sensor Housing if you
remove the Air Leaving Wedge.
Locating the Fan Inlet Sensors on Forward
Curve Fans
Inspect the fan inlet opening to ensure no
obstructions or irregularities interfere with installation
of the sensors. Install the two fan inlet sensors
opposite one another within the fan inlet bell. Place
the sensor housing at or near the highest restriction
point of the fan inlet as possible.
Sensors should be placed at the 12:00 o'clock and
6:00 o'clock positions, directly opposite one another
in a similar fashion for fans with the air exiting on the
right or left of the housing. See Figure 1.
Sensors should be placed at the 3:00 o'clock and
9:00 o'clock positions, directly opposite one another
for fans with the air exiting on the top or bottom of the
housing. See Figure 2.
On dual inlet fans, install two sensor circuits within
each fan inlet bell. Place the sensor housing at or
near the highest restriction point of each inlet as
possible.
Figure 1: Sensor Mounting
Figure 2: Sensor Mounting
Mounting the Fan Inlet Sensors
Use the supplied pan head, self-drilling fasteners
(included in parts bag) to fasten the fan inlet sensor to
the inlet bell.
If the fan has a shallow inlet bell, use a box knife or
other utility knife to remove the Air Leaving Wedge,
leaving the primary sensor housing (containing the
sensor circuit) and the Air Entering Wedge. Use the
mounting hole on the Primary Sensor Housing if you
remove the Air Leaving Wedge.
Figure 3: Fan Inlet Sensor
Note: Ensure that the airflow arrow is pointed in the
correct direction.
Figure 4: Fan Inlet Sensor Dimensions, in. (mm)
RUSKIN EFAMS Thermal Dispersion Airflow Measuring System Installation Instructions
Figure 1: Sensor Mounting
Figure 2: Sensor Mounting
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS
4
Locating the Fan Inlet Sensors on Forward
Curve Fans
Inspect the fan inlet opening to ensure no
obstructions or irregularities interfere with installation
of the sensors. Install the two fan inlet sensors
opposite one another within the fan inlet bell. Place
the sensor housing at or near the highest restriction
point of the fan inlet as possible.
Sensors should be placed at the 12:00 o'clock and
6:00 o'clock positions, directly opposite one another
in a similar fashion for fans with the air exiting on the
right or left of the housing. See Figure 1.
Sensors should be placed at the 3:00 o'clock and
9:00 o'clock positions, directly opposite one another
for fans with the air exiting on the top or bottom of the
housing. See Figure 2.
On dual inlet fans, install two sensor circuits within
each fan inlet bell. Place the sensor housing at or
near the highest restriction point of each inlet as
possible.
Figure 1: Sensor Mounting
Figure 2: Sensor Mounting
Mounting the Fan Inlet Sensors
Use the supplied pan head, self-drilling fasteners
(included in parts bag) to fasten the fan inlet sensor to
the inlet bell.
If the fan has a shallow inlet bell, use a box knife or
other utility knife to remove the Air Leaving Wedge,
leaving the primary sensor housing (containing the
sensor circuit) and the Air Entering Wedge. Use the
mounting hole on the Primary Sensor Housing if you
remove the Air Leaving Wedge.
Figure 3: Fan Inlet Sensor
Note: Ensure that the airflow arrow is pointed in the
correct direction.
Figure 4: Fan Inlet Sensor Dimensions, in. (mm)
RUSKIN EFAMS Thermal Dispersion Airflow Measuring System Installation Instructions
Locating the Fan Inlet Sensors on Forward
Curve Fans
Inspect the fan inlet opening to ensure no
obstructions or irregularities interfere with installation
of the sensors. Install the two fan inlet sensors
opposite one another within the fan inlet bell. Place
the sensor housing at or near the highest restriction
point of the fan inlet as possible.
Sensors should be placed at the 12:00 o'clock and
6:00 o'clock positions, directly opposite one another
in a similar fashion for fans with the air exiting on the
right or left of the housing. See Figure 1.
Sensors should be placed at the 3:00 o'clock and
9:00 o'clock positions, directly opposite one another
for fans with the air exiting on the top or bottom of the
housing. See Figure 2.
On dual inlet fans, install two sensor circuits within
each fan inlet bell. Place the sensor housing at or
near the highest restriction point of each inlet as
possible.
Figure 1: Sensor Mounting
Figure 2: Sensor Mounting
Mounting the Fan Inlet Sensors
Use the supplied pan head, self-drilling fasteners
(included in parts bag) to fasten the fan inlet sensor to
the inlet bell.
If the fan has a shallow inlet bell, use a box knife or
other utility knife to remove the Air Leaving Wedge,
leaving the primary sensor housing (containing the
sensor circuit) and the Air Entering Wedge. Use the
mounting hole on the Primary Sensor Housing if you
remove the Air Leaving Wedge.
Figure 3: Fan Inlet Sensor
Note: Ensure that the airflow arrow is pointed in the
correct direction.
Figure 4: Fan Inlet Sensor Dimensions, in. (mm)
RUSKIN EFAMS Thermal Dispersion Airflow Measuring System Installation Instructions
Figure 3: Fan Inlet Sensor
Note: Ensure that the airow arrow is pointed in the
correct direction.
Figure 4: Fan Inlet Sensor Dimensions, in. (mm)
120
(3048)
13/8(35)
1 (25)
31/8(79)
1/2(13)
Airflow
Primary
Sensor
Housing
Air
Leaving
Wedge
Air
Entering
Wedge
Ambient
Thermistor
Heated
Thermistor
Remove piece for shallow
inlet bell installations

‘X’ (In.)
93/4
101/8
107/16
113/16
111/2
117/8
121/4
129/16
1215/16
135/16
135/8
14
143/8
1411/16
Locating the Fan Inlet Sensors on
Backward Curve and Plenum Fans
Locating the Fan Inlet Sensors on Plenum
Fans
Figure 5
Mount the rods solidly on the flat face of the inlet bell
as shown in Figure 5. Adjust the rods so that the
sensors are positioned at the correct “x” dimension
for the applicable fan size in Table A. Secure the
sensor cables to the back of the rods with zip ties.
The cables must be carefully and securely attached
so that they do not move when the fan is running.
Table A
Installing the Router
Do not mount the router to the fan housing. Install the
router on an adjacent structural wall, plenum, or duct-
work that is isolated from excessive system vibration.
Securely mount the router on a wall near the sensors.
Use four field-supplied fasteners to mount the
enclosure in an appropriate location. Use fasteners
suitable for the wall material.
Do not install or store the router outdoors.
Figure 6
Inlet
Diameter 'D'
(in)
X' (in.)
Inlet
Diameter 'D'
(in)
X' (in.)
15 4 13/16 29 9 3/4
16 5 3/16 30 10 1/8
17 5 1/2 31 10 7/16
18 5 7/8 32 11 3/16
19 6 3/16 33 11 1/2
20 6 9/16 34 11 7/8
21 6 15/16 35 12 1/4
22 7 1/4 36 12 9/16
23 7 5/8 37 12 15/16
24 8 38 13 5/16
25 8 5/16 39 13 5/8
26 8 11/16 40 14
27 9 1/16 41 14 3/8
28 9 3/8 42 14 11/16
RUSKIN EFAMS Thermal Dispersion Airflow Measuring System Installation Instructions
Figure 5
Mount the clamp for the adjustable sensor bracket
solidly on the at face of the inlet bell as shown in
Figure 5. Adjust the rods so that the sensors are
positioned at the correct “x” dimension for the
applicable fan size in Table A. Secure the sensor
cables to the back of the rods with multiple zip ties.
The cables must be carefully and securely attached
so that they do not move when the fan is operating.
Sensors should be placed at the 12:00 o’clock and
6:00 o’clock positions, directly opposite one another
in a similar fashion for fans with the air exiting on the
right or left of the housing. See Figure 1.
Sensors should be placed at the 3:00 o’clock and
9:00 o’clock positions, directly opposite one another
for fans with the air exiting on the top or bottom of
the housing. See Figure 2.
Note: Ensure that the airow arrow is pointed in the
correct direction. Be careful to not bend or touch the
thermis tors while installing.
NOTICE: It is imperative that the mounting brackets,
rods, sensors and cables be securely and perma-
nently installed to prevent any portion of the air mea-
surement equipment from being drawn into the fan.
Mount the router to a solid, non vibrating surface, an
adjacent structural wall, plenum, or duct-work that is
within 10 feet (3.05 M) of all sensors.
Use four eld-supplied fasteners to mount the
enclosure in an appropriate location. Use fasteners
suitable for the wall material.
Install and store the router indoors or in a non-
condensing environment.
Connect the sensor cables to the Router sensor
ports.
Installing the Router
Figure 6: Router Dimensions, in. (mm)
Communication
Port
25/8(67)
5 (127)
Power
Port
Primary
Sensor
Ports Secondary
Sensor
Ports
21/4(57)
Inlet
Diameter ‘D’
(In)
15
16
17
18
19
20
21
22
23
24
25
26
27
28
‘X’ (In.)
413/16
53/16
51/2
57/8
63/16
69/16
615/16
71/4
75/8
8
85/16
811/16
91/16
93/8
Inlet
Diameter ‘D’
(In)
29
30
31
32
33
34
35
36
37
38
39
40
41
42
‘X’
‘X’
‘D’
Edge of Inlet Flare
Flat Face of
Fan Inlet
Sensor
Mounting
Center
TABLE A
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 5

Installing the Ruskin Electronic Controller
Install the Electronic Controller on an adjacent
structural wall, plenum, or ductwork that is isolated
from excessive system vibration. Do not mount the
Electronic Controller to the fan housing.
Mount the Electronic Controller in a protected area
of an air handling unit or place the Electronic Controller
with similar control panels within the structure.
Install and store the Electronic Controller indoors in a
non-condensing environment.
Mount the Electronic Controller within 50 feet (15.24 M)
of the router to prevent voltage drop or distortion
between the Electronic Controller and the sensors.
Shorter cable lengths are better.
Mount the Electronic Controller on a at surface
using these steps:
(Note: The electronic controller must be accessible
while the fan is running.)
1. Securely mount the Electronic Controller on a wall
near the sensors, in a position where the display
can be easily viewed and the wiring connections
are accessible. Use four eld-supplied fasteners
to mount the enclosure in an appropriate location.
Use fasteners suitable for the wall material.
2. Remove the six screws that secure the cover of
the Electronic Controller to access set-up menu
buttons.
3. Remove the appropriate conduit plugs on the top
of the Electronic Controller for connection of the
eld wires to the circuit board terminal blocks (see
Figure 9).
4. Wire the supply power and outputs. See Wiring.
IMPORTANT: Avoid running this device’s wiring in
the same conduit as AC power wiring or with wiring
used to suppy highly inductive loads such as motors,
contactors and relays.
Tests show that uctuating, erratic and inaccurate
signal levels are possible when AC power wiring
is present in the same conduit as the signal lines.
Mount the Electronic Controller and all wiring away
from variable frequency drives (VFD’s) and broadcast
antennas.
IMPORTANT: Mount the Electronic Controller within
50 feet of the router. Avoid cable loops or coils.
Shorter cable lengths are better.
IMPORTANT: Always connect CAT5e cables from the
sensors to the router, then the router directly to the
Electronic Controller. Damage to the Controller will
result if sensors are plugged directly to the controller.
If replacement cables between the router and the
Electronic Controller are needed, they must meet the
following spec:
CAT5e cable specs, with simple pairing:
CAT5e solid plenum cable
4-pair shielded, twisted pair cable
Shielded connectors
24 AWG solid bare copper conductor
Meets or exceeds CAT5e spec
Teon insulated, plenum jacket
CMP rated for use in any area used for air return,
drop ceiling, airducts, and in public buildings
Compliant with EIA/TIA standards by ETL
CSA listed
Note: Standard Ethernet cables and crossover
cables cannot be used because they do not have
the correct simple pairing for connecting the
router and the Electronic Controller.
The shielded sensor cables are hard wired and can-
not be replaced. If the connector on the sensor cable
needs to be replaced use the following pin-outs.

RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 7
WIRING
Whenever possible, use a dedicated transformer
for each EFAMS System. If you use a dedicated
transformer for multiple EFAMS Systems, ensure that
the transformer is rated with sufcient capacity for
the total load of the connected sensors and other
devices.
Errors in the load calculations can lead to problems.
Wiring multiple low-voltage devices from a common
transformer can result in lower-than-expected voltage
at the device and higher-than-expected current draw
when devices are connected a great distance from
the power source.
Transformers are not required to be isolated from
other devices. Isolation is only required to prevent
electrical uctuations due to intermittent high loads
from causing problems with electronic devices.
See Figure 7 for supply power and output connec-
tions.
Follow these steps to make wiring connections:
1. Connect 24 VAC power to the Electronic
Controller with a minimum of 20 VA.
a. Connect 24 VAC hot to 24H + terminal.
b. Connect 24 VAC common to 24C - terminal.
c. Negative (-) terminal to be connected to earth
ground.
2. Connect 4 to 20 mA velocity and temperature
outputs from the Electronic Controller to a Building
Automation System (BAS).
Wiring from the 4-20 mA outputs to the Building
Automation System (BAS) should be shielded twisted
pair of at least 22 AWG for all wire connections.
Larger gage wire may be required for long runs. All
wiring must comply with applicable codes.
Note: The Electronic Controller provides two 4-20 mA
signals to the building automation system. Do not
loop power.
Ruskin recommends wiring the system without power
applied as accidental arcing may damage the prod-
uct and will void the warranty.
Figure 7a: Setup and Adjustment
Figure 7b: Setup and Adjustment
ROUTER CONNECTIONS
During Normal Operation, LED’s will illuminate at the
RJ45 connector on the Electronic Controller as follows:
On the T1 Communication Cable the (green) LED il-
luminates to indicate that the Electronic Controller has
properly identied the router. The (orange-yellow) LED
blinks each time the Electronic Controller exchanges data
with the router. The T2 Power cable provides power only
to the router and only the green LED will illuminate.
Output OutputPower
SW2 SW3 SW4 SW5
1-4 5-8 9-12 13-16
T1 T2
Finishing the Installation
1. Connect a shielded CAT5e cable between the
Communication Port RJ45 connector on the router
(see Figure 7 and Figure 8) to the Communication
Port RJ45 connector on the Electronic Controller
(see Figure 7 and Figure 8) .
2. Connect a shielded CAT5e cable between the Power
Port RJ45 connector on the router (see Figure 7 and
Figure 8) to the Power Port RJ45 connector on the
Electronic Controller (see Figure 7 and Figure 8).
3. Use nylon cable clamps (included in parts bag) to
secure RJ45 cable between the sensors and the
router, and between the router and the Electronic
Controler. Space cable clamps on 6 in. (152 mm)
centers.
4. Move the Electronic Controller’s power switch (see
Figure 9) to the ON position.
5. Use the LCD Contrast Adjustment screw (see
Figure 9) to adjust the LCD contrast as desired:
• Turn the screw clockwise to increase contrast.
• Turn the screw counterclockwise to decrease
contrast.
6. Use the Options Menu to configure the Electronic
Controller for your application. See Setup and
Adjustments for specific instructions.
7. After configuring the Electronic Controller, replace
the cover.
RUSKIN EFAMS Thermal Dispersion Airflow Measuring System Installation Instructions
Power
Port
Communication
Port
Not
Used
Not
Used
LCD Screen 61/8(156)
31/8(80)
113/8(290)
Figure 7c: Electronic
Controller Dimensions, in. (mm)

RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS
8
Finishing the Installation
Finishing the Installation
1. Connect a shielded CAT5e cable between the
Communication Port RJ45 connector on the router
(see Figure 7 and Figure 8) to the Communication
Port RJ45 connector on the Electronic Controller
(see Figure 7 and Figure 8) .
2. Connect a shielded CAT5e cable between the Power
Port RJ45 connector on the router (see Figure 7 and
Figure 8) to the Power Port RJ45 connector on the
Electronic Controller (see Figure 7 and Figure 8).
3. Use nylon cable clamps (included in parts bag) to
secure RJ45 cable between the sensors and the
router, and between the router and the Electronic
Controler. Space cable clamps on 6 in. (152 mm)
centers.
4. Move the Electronic Controller’s power switch (see
Figure 9) to the ON position.
5. Use the LCD Contrast Adjustment screw (see
Figure 9) to adjust the LCD contrast as desired:
• Turn the screw clockwise to increase contrast.
• Turn the screw counterclockwise to decrease
contrast.
6. Use the Options Menu to configure the Electronic
Controller for your application. See Setup and
Adjustments for specific instructions.
7. After configuring the Electronic Controller, replace
the cover.
RUSKIN EFAMS Thermal Dispersion Airflow Measuring System Installation Instructions
Power
Port
Router
Fan Inlet
Sensors
Communication
Port
Communication
Cable
Electronic Controller
Communication Port
Power Port
Power
Cable
Sensor Cables
Figure 8: EFAMS System Components
Note: Ensure that the Fan Inlet Sensor Cables are
plugged into the corresponding Router Sensor Ports.
1. Connect shielded CAT5e cable between the
Communication Port RJ45 connector on the router
(see Figure 8 and Figure 9) to the Communication
Port RJ45 connector on the Electronic Controller
(see Figure 8 and Figure 9).
2. Connect the included shielded CAT5e cable
between the Power Port RJ45 connector on the
router (see Figure 8 and Figure 9) to the Power
Port RJ45 connector on the Electronic Controller
(see Figure 8 and Figure 9).
3. Use nylon cable clamps (included in parts bag)
to secure RJ45 cable between the sensors and
the router. Space cable clamps on 6 in. (152 mm)
centers.
4. Move the Electronic Controller’s power switch (see
Figure 7 ) to the ON position and follow the on
screen prompts to complete initial setup.
Initial setup must be completed in order to use
the Options Menu to congure the Electronic
Controller for your application. See Setup and
Adjustments for specic instructions.
5. After conguring the Electronic Controller, replace
the cover.
Note: If the LCD screen displays “ERROR! CHECK
CAT5 CABLE AND RESET” please check for a loose
connection, a damaged cable, or an improperly ter-
minated cable.
REQUIRED INITIAL STARTUP FIELD
CALIBRATION:
The EFAMS product is designed to introduce the
least amount of pressure drop and corresponding
energy penalty. The EFAMS does not sample 100%
of the air owing into a fan, but instead, measures an
air ow that will track the air ow through the fan.
For initial setup, the fan must be run at three known
ows to complete initial installation.
Follow on screen prompts. See Balancer Field
Calibration Mode Figure 9.
INITIAL STARTUP FIELD CALIBRATION
Firmware Version 8.6
The electronic fan inlet air measurement station must be eld calibrated by running the fan at three increasing, known air ow
values, Low, Medium and High, or using air ow measurements provided by a Test & Balance (T&B) contractor. It is recommend-
ed to record damper positions and drive speeds while T&B is on site to facilitate recalibration anytime measurement equipment
must be moved or replaced.
RESET SETTING will not delete or reset eld calibration settings.
FIELD CALIBRATION OFF will delete eld calibration settings and setup steps must then be repeated to restore calibrated op-
eration. DO NOT TURN OFF FIELD CALIBRATION unless setup is being reinitiated.
ZERO CUTOFF is adjusted after completion of Field Calibration. A non-zero display is normal and expected when the fan is
turned off after completion of eld calibration. With the fan off and the dampers closed so that NO air is owing through the fan,
use the up or down arrow and record the highest reading displayed on any single sensor. Enter a value that is slightly greater
than this amount as the zero cutoff value. OFFSET values when used will always be added to all subsequent readings and
should not be used in place of a zero cutoff value.
Field Calibration Overview:
When power is applied to the installed electronic fan inlet air measurement station and equipment is properly installed and con-
nected INITIAL STARTUP FIELD CALIBRATE is displayed. To complete the setup the fan must be able to run at low, medium
and high air ows. With the fan running at a known Low ow value, the UP and DOWN buttons on the transmitter box will be
used to adjust the display so that the value displayed on the transmitter box matches the actual air ow occurring at that same
time. The ENTER key is used to input that value and will automatically advance the display prompt to the next step. The fan
speed and air ow must then be increased to the medium ow value before the Middle ow values is input. And nally the fan
speed and air ow through the fan inlet must be increased to the highest expected Max ow before the Max Flow Point is en-
tered. Power will then be cycled and the calibrated air ow will be displayed while the fan is running. The ZERO CUTOFF is set
AFTER completion of the Balancer Field Calibration steps.

Step-by-Step INSTRUCTIONS (see Figure 24)
When power is applied for the rst time the display
will rst show rmware revision number and then the
display will eventually read “INITIAL STARTUP FIELD
CALIBRATE” and alternately read “HOLD ENTER KEY
COMPLETE SETUP” (If this is NOT displayed then
see SETUP AND ADJUSTMENTS, RESET SETTINGS,
select UNITS and then scroll to BALANCER FIELD CAL-
IBRATION and select ON.)
• When the “ENTER” button is depressed the display
will read “FIRST STEP SETUP UNITS.”
• Depress “ENTER” and use the ESC UP DOWN and
ENTER buttons, when “UNITS” is displayed to se-
lect desired units for calibration to match T&B units.
“GAIN” is always 1 and the area is the total area
through the fan inlet(s).
• After units have been selected the transmitter will
show “SECOND STEP CALIBRATION” briey and
then show “RUN FAN MINIMUM SPEED” followed
by “MIN FLOW POINT” continuously.
At this point the fan must be running at the rst
ow or the minimum fan speed or lowest operat-
ing point for the system. Note: The point must
be on the fan curve and not simply the lowest
speed the variable speed drive is able to run. This
point is typically between 15HZ and 30 HZ even
though the VFD might be able to run slower. Air
ow values below the minimum operating point
on the fan curve stir the air but may not move any
air and will produce poor calibration results.
• With air passing across the sensors at the minimum
air ow, adjust the transmitter display using the up
and down buttons until the value displayed matches
the known air ow at this fan speed and press the
“ENTER” button.
• The display will briey display “RUN FAN MIDDLE
SPEED” followed by “MID FLOW POINT” continu-
ously. Increase the fan speed to the second op-
erating air ow point. With air passing across the
sensors at the middle speed, adjust the transmitter
display using the up and down buttons until the
value displayed matches the known air ow at this fan speed and press the “ENTER” button.
• The transmitter will briey display “RUN FAN MAXIMUM SPEED” followed by “MAX FLOW POINT” continuously.
Increase the fan speed to the maximum expected operating air ow. With air passing through the sensors at the
maximum expected operating air ow, adjust the transmitter display using the up and down buttons until the
value displayed matches the known air ow at this fan speed and press the “Enter” button. The transmitter dis-
play will show “CYCLE POWER” and will automatically cycle or can be turned off and backed on to enter normal
operating mode. DO NOT TURN OFF BALANCER FIELD CALIBRATION MODE.
• Turn the fan off and close any dampers to prevent any air movement through the fan. With no air passing through
the fan or the fan blocked off, use the up or down button to scroll through each sensor and note highest value
displayed.
• Use the ZERO CUTOFF feature to enter a value greater than the highest value displayed on any one sensor.
Please NOTE: Previous balancer settings are lost when the eld calibration mode is turned off.
To repeat the calibration steps again the eld calibration mode can be turned off and then on again to
repeat the setup steps using fan speeds and conditions previously established as known air ow values for
low, medium and high.
INITIAL STARTUP
FIELD CALIBRATE
HOLD ENTER KEY
COMPLETE SETUP
FIRST STEP
SETUP UNITS
SECOND STEP
CALIBRATION
RUN FAN
MINIMUM SPEED
MIN FLOW POINT
?????
MID FLOW POINT
?????
RUN FAN
MIDDLE SPEED
MAX FLOW POINT
?????
RUN FAN
MAXIMUM SPEED
CYCLE POWER
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 9

Figure 10: Installation Menu
SETUP AND ADJUSTMENTS
Use UP and DOWN buttons (see Figure 7) to scroll
through each sensor’s velocity and temperature
reading. Press ESC on the Electronic Controller to
display the average velocity and temperature values.
We recommend setting the controller to display
airow volume in CFM.
Initialization Menu
To access the initialization menu, press and hold both
ENTER and ESC on the Electronic Controller until the
LCD screen clears.
To scroll through each of the menu options,
press UP and DOWN on the Electronic Controller
(see Figure 7):
• RESET SETTINGS
• LCD ON/OFF
• ERROR INDICATION
• TEST SIGNAL
• UNITS
• GAIN
• OFFSET
• ZERO CUTOFF
• DISPLAY VELOCITY OUTPUT FORMULA
• SCALE VELOCITY mA OUTPUT SIGNAL
• ADJUST mA OUTPUT FILTER VALUE
• AUTO RESET
• TEMPERATURE RESET
• BALANCER FIELD CALIBRATION
Note: Pressing ESC while in one of the option menus
exits the option menu without saving changes and
returns to the Initialization menu. To save changes,
press ENTER then press ESC.
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS
10

RESET SETTINGS
This option restores the Electronic Controller to the
default factory settings.
LCD ON/OFF
This option turns the LCD screen on the Electronic
Controller ON or OFF.
Note: Pressing ESC, UP, DOWN, or ENTER reacti-
vates the LCD screen.
Figure 12: LCD ON/OFF Submenu
Figure 13: Error Indication Submenu
ERROR INDICATION
This option activates the error indication on the LCD
screen. When an error occurs, the temperature ap-
pears as a lowercase letter f (degrees Fahrenheit).
Note: If the Electronic Controller has settings other
than the default settings, you may want to make
note of them before you reset the Electronic Con-
troller . The default values are denoted in Figures 11
through 21 with an asterisk *.
Figure 11 ARE YOU SURE
Figure 12 DISPLAY
Figure 13 ERROR INDICATION
Figure 14 SET TEST SIGNAL
Figure 15 UNIT SYSTEM,
VELOCITY UNIT
Figure 16 GAIN VALUE
Figure 17 OFFSET VALUE
Figure 18 CUTOFF VALUE
Figure 19 DISPLAY VELOCITY
OUTPUT FORMULA
Figure 20 SCALE VELOCITY
mA OUTPUT SIGNAL
Figure 21 FILTER VALUE
Figure 22 AUTO RESET
Figure 23 TEMPERATURE RESET
Figure 24 BALANCER FIELD CALIBRATION
Figure 11: Reset Settings Submenu
*
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 11
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
*
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
*
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5

This option outputs a xed 4, 10 or 20 mA value to
each 4 to 20 mA output. This test checks the output
signal from the Electronic Controller for velocity and
temperature. Make sure a user is present at the BAS
computer to verify that the appropriate test signal
from the Electronic Controller is reaching the BAS.
To turn a test signal ON, press ENTER from the initiali-
zation menu to access the TEST SIGNAL options. Use
UP and DOWN to select the SET TEST SIGNAL: YES
option. Use UP and DOWN to scroll through each of
the available xed output signals (4, 10, or 20 mA).
Press ENTER to accept the test output signal and turn
the test signal ON. Allow time for signal to stabilize.
To turn the test signal OFF, press ENTER or ESC.
UNITS
This option sets the displayed velocity and temper-
ature unit. To access this menu, press ENTER. The
LCD screen states UNIT SYSTEM. Use UP and
DOWN to select SI or IU unit systems.
• Select SI for FPM or CFM with temperature in
degrees Fahrenheit.
• Select UI for MPS or LPS with temperature in
degrees Celsius.
Use UP and DOWN to scroll through the available
units. Press ENTER to select the desired unit.
If CFM or LPS is selected, the area is requested on
the LCD screen. Use UP and DOWN to adjust the
area calculation. Press ENTER to accept the area
value. We recommend setting the controller to display
CFM (lps).
Note: Connect BAS wiring and verify test signal at
BAS and correct automation scaling has been con-
gured. If test signal at BAS does not produce
expected results, disconnect BAS wiring and verify
the test signal at Electronic Controller with a meter.
If test signal at Electronic Controller is not correct,
contact factory for additional calibration procedure
instructions.
Figure 14: Test Signal Submenu Figure 15: Units Submenu
**
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
*
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS
12

GAIN
This option adjusts the gain for the average velocity
calculation. Press ENTER from the initialization menu
to access the GAIN adjustment. Use UP and DOWN
to adjust the desired gain value (Range = 0.01 to 99).
Press ENTER to accept the value.
OFFSET
This option adjusts the offset for the average veloc-
ity calculation. Press ENTER from the initialization
menu to access the OFFSET adjustment. Use UP and
DOWN to adjust the offset value (Range = -1000 to
1000). Press ENTER to accept the value.
Note: Offset value is always in FPM.
Figure 16: Gain Submenu
Figure 18: Zero Cutoff Submenu
Figure 17: Offset Submenu
*
*
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 13
USING THE GAIN
AND OFFSET SUBMENUS
The average velocity is the average of each of the indi-
vidual sensor readings. If a system effect is causing an
issue with the EFAMS system, use the GAIN for a cor-
rection multiplier and the OFFSET as a correction (addi-
tion/subtraction) to the average velocity calculation.
In the event that something in the system is causing
measurement problems, adjust the GAIN or OFFSET
to adjust the EFAMS system to match a balancer’s
report. When a difference occurs between the output
of the Electronic Controller and the test and balance
report, adjust the gain. We recommend setting the
gain to 1 and taking multiple readings to determine
the difference. To calculate the gain, divide the test
and balance report by the output/reading of the Elec-
tronic Controller.
Adjusting the Gain
This feature applies a multiplier across the entire scale.
If a balance report states a ow of 800 FPM, and the
EFAMS system reports 1,000 FPM, adjust the gain to
0.80 (800 / 1,000 = 0.80).
If a balance report states a ow of 1,000 FPM and the
EFAMS system reports 900 FPM, adjust the gain to
1.11 (1,000 / 900 = 1.11).
Adjusting the Offset
This feature applies a value to the entire scale.
If a balance report states a ow of 1,000 FPM, and
the EFAMS system reports 800 FPM, adjust the offset
to 200 (1000 - 800 = 200).
If the balance report states a ow of 900 FPM and the
EFAMS system reports 1,000 FPM, adjust the offset
to -100. (900 - 1,000 = -100).
ZERO CUTOFF
This option sets the zero velocity reference point.
Ensure that there is no airow owing through the
system, then access this menu to set the zero veloc-
ity reference point. The LCD screen displays CUTOFF
VALUE. Use UP and DOWN to scroll to values 40
FPM (0.20 mps) and above. Press ENTER to accept
the value.
The calculated velocity indicates zero when it reaches
the zero cutoff value.
CUTOFF
VALUE: 40 FPM (0.20 mps)
ZERO
CUTOFF
DISPLAY VELOCITY
OUTPUT FORMULA
*
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
CUTOFF
VALUE: 65 FPM (0.33 mps)

DISPLAY VELOCITY OUTPUT FORMULA
This option displays the velocity output formula.
Depending on units selected and gain & offset values
used, the velocity output formula will display the scal-
ing values that must be used to convert the mA out-
put into the correct ow in the automation interface.
ADJUST mA OUTPUT FILTER VALUE
This option submenu allows the user to adjust the mA
lter value used to speed up or slow down the mA
output rate of change. Use the default value of 0.35
for the majority of applications. Use a mA lter value
of 0.5 to 1.0 when an instantaneous output signal is
required for applications such as fan tracking. Use
smaller values such as 0.25 for a more stable output.
As the value decreases, ltering increases. The mA
output lter responds to the air ow calculation and is
applied to the 4 to 20 mA output signal only.
SCALE VELOCITY mA OUTPUT SIGNAL
This option allows the user to improve the resolution
of the output signals by changing the start and end
points. For example; the factory setting is 0 to 10,000
FPM (50.8 mps). If the maximum system ow is 5,000
FPM (25.4 mps), the output can be set so that 20 mA
equals 5,000 FPM (25.4 mps) instead of 10,000 FPM
(50.8 mps).
Figure 19:
Display Velocity Output Formula Submenu
Figure 20:
Scale Velocity mA Output Signal
Submenu with Velocity Unit: FPM Selected
Note: Range is 0.0 to 1.0. Factory mA output default= .35
Figure 21:
Adjust mA Output Filter Value Submenu
*
UP
SW3
ENTER
SW5
DOWN
SW4
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
UP
SW3
ESC
SW2
EntEr
SW5
down
SW4
:500 to 10,000 FPM
4mA VALUE
:USE 20 mA FPM
VALUE MINUS 500
OR MORE FPM
ESC UP DOWN ENTER
SW2 SW3 SW4 SW5
:10,000 FPM
AUTO RESET
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS
14

AUTO RESET ON/OFF
This option allows the user to turn off this feature.
TEMPERATURE DISPLAY ON/OFF
This option turns the Temperature Display on the
Electrical Controller ON or OFF.
RUSKIN EFAMS THERMAL DISPERSION AIRFLOW MEASURING SYSTEM INSTALLATION INSTRUCTIONS 15
AUTO RESET
TEMPERATURE
DISPLAY
ON/OFF
TEMPERATURE
DISPLAY
ON/OFF
TEMPERATURE
DISPLAY
ON/OFF
BALANCER FIELD
CALIBRATION
BALANCER FIELD
CALIBRATION
AUTO RESET ON/OFF
This option allows the user to turn off this
feature.
TEMPERATURE DISPLAY ON/OFF
This option turns the Temperature Display on
the Electronic Controller ON or OFF.
AUTO RESET
:ON AUTO RESET
:OFF
TEMPERATURE
:ON
TEMPERATURE
:OFF
Figure 23: Temperature Display
ON/OFF Submenu
Figure 22: Auto Reset ON/OFF
Submenu
Figure 22: Auto Reset ON/OFF Submenu Figure 23: Temperature Display ON/OFF Submenu
AUTO RESET
TEMPERATURE
DISPLAY
ON/OFF
TEMPERATURE
DISPLAY
ON/OFF
TEMPERATURE
DISPLAY
ON/OFF
BALANCER FIELD
CALIBRATION
BALANCER FIELD
CALIBRATION
AUTO RESET ON/OFF
This option allows the user to turn off this
feature.
TEMPERATURE DISPLAY ON/OFF
This option turns the Temperature Display on
the Electronic Controller ON or OFF.
AUTO RESET
:ON AUTO RESET
:OFF
TEMPERATURE
:ON
TEMPERATURE
:OFF
Figure 23: Temperature Display
ON/OFF Submenu
Figure 22: Auto Reset ON/OFF
Submenu

During Normal Operation LEDs illuminate at the RJ45 connector
on the Electronic Controller. The left (green) LED indicates that
the Electronic Controller has properly identied the router. The
right (orange-yellow) LED illuminates each time the Electronic
Controller communicates with the router. See Figure 7b.
If the right (orange-yellow) LED does not blink, reset the Elec-
tronic Controller by cycling the power switch OFF and then ON.
See Figure 7.
Use UP and DOWN (see Figure 7) to scroll through each sensor’s
velocity and temperature reading. Press ESC on the Electronic
Controller to display the average velocity and temperature values.
If an error occurs with one of the sensors, an error indication
displays on the LCD screen. The error is indicated on the LCD
screen by the velocity unit in lowercase letters.
REPAIR INFORMATION
If the EFAMS Thermal Dispersion Fan Inlet Measuring System
fails to operate within its specications, replace the unit. For a
replacement EFAMS System, contact the nearest Ruskin repre-
sentative.
MAINTENANCE
Once a year, scroll through the velocity and temperature values
using UP and DOWN (see Figure 7). Clean the sensor nodes if
readings vary from normal readings.
To clean the electronic sensors:
1. Remove cover from Electronic Controller and turn power
switch off. Please make sure the sensor is allowed to cool before
cleaning.
2. Unplug the shielded Cat5e cable from the RJ45 connector on
the end of the thermal dispersion sensor.
3. Spray the thermal dispersion sensor with a non-ammmable
circuit board cleaner if necessary. Ensure that the sensor is facing
downward during cleaning so any moisture encountered in the
cleaning process will drain out of the sensor.
4. Remove lint, dust, and other matter from the sensor. (Do
not use high pressure air.) Care must be taken not to bend the
thermistors while cleaning. The sensor should be centered in its
opening after cleaning.
Annually inspect the thermal dispersion sensor in unltered out-
side air, return air, or exhaust air applications to ensure that the
thermal dispersion sensors are free of excessive buildup of lint,
dust, or other airborne particulate.
SuperClean Deuxer by MicroCare (MC-SPR) (or equal) can
be used to spray clean the thermistors. MicroCare MC-SPR is
designed for cleaning electronics, rosins and plastics. MicroCare
MC-SPR is static safe and nonammable.
TROUBLESHOOTING
3900 Dr. Greaves Rd.
Kansas City, MO 64030
[phone]
FAX [phone]
www.ruskin.com
®
TECHNICAL SPECIFICATIONS
EFAMS Thermal Dispersion Fan Inlet Airow Measuring System
Velocity Requirements Minimum 0 fpm (0 mps)
Maximum 10,000 fpm (50.8 mps)
Fan Degradation Minimal
Sensor Accuracy Airow: ±2% of reading and ±0.15% repeatability
Temperature: ±0.10°F
24 VAC internally fused power supply
Velocity Output: 4 to 20 mA (Std.) or 2 to 10 VDC (requires 500-ohm resistor)
Temperature Output: 4 to 20 mA (Std.) or 2 to 10 VDC (requires 500-ohm resistor)
Fused outputs
Electronic Controller Included
Power Requirement Dedicated 24 V, 40 VA transformer
Power Consumption 1 router with 2 sensors: 20 VA, 1 router with 4 sensors: 25 VA,
2 routers with 8 sensors: 40 VA
Operating Conditions Sensor: -25 to 140°F (-32 to 60°C); 0-99% RH, non-condensing
Controller: -20° F to 120° F (-29° C to 49° C); 0-99% RH, non-condensing
Router Unit (One per One microprocessor based multiplexer circuit
Fan Location) Sensor/communications circuit
All circuits encapsulated in electronic potting compound
Approximate Weight Controller: 2.9 lb (1.32 kg)
Router: 1 lb (0.45 kg)
Sensor: 0.5 lb (0.22 kg)
Measuring stations are tested at an AMCA Registered Laboratory using instrumentation and procedures in accordance with AMCA Standard
No. 610-93, Airow Station Performance.
The performance specications are nominal and conform to acceptable industry standards. For application at conditions beyond these specica-
tions, consult the local Ruskin ofce. Ruskin shall not be liable for damages resulting from misapplication or misuse of its products.
Contact Ruskin Air & Sound Control, Air Measuring Product Sales
3900 Dr. Greaves Road Grandview, MO 64030.
Telephone: [phone]
www.ruskin.com
Copyright 2018 Ruskin Manufacturing
The information provided in this manual is believed to be complete and accurate. Ruskin Manufacturing is a manufacturer and supplier of
equipment and, as such, is not responsible for the manner in which its equipment is used nor for infringement of rights of third parties resulting
from such use. System design is the prerogative and responsibility of the system designer.
All Rights Reserved. The product detailed in this manual is protected by a U.S. patent. Illustrations and product descriptions pub-
lished are not binding in detail. In keeping with its policy of continuous improvement, Ruskin reserves the right to change or modify
designs or specifications of products without notice or obligation.