Veris Industries EP3 Series User manual

Z203959-0D PAGE 1 ©2008 Veris Industries USA 800.354.8556 or 503.598.4564 / suppor[email protected] 06081
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Electropneumatic Transducer
Installer's Specifications
ep3 SerieS ep3 SerieS
Dimensions
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ProDuct iDentification
Power Supply 22-30VDC, 20-30VAC, 47-63 Hz, 150mA max. average, 350mA peak
Control Input 4-20mA, (0-10V, 0-5V; jumper selectable), Tri-State, PWM
Input Impedance 4-20mA, 250Ω; 0-5/0-10V, 10kΩ
Manual Override Digital pushbutton adjust, switch selectable mode
Alarm Contact 100mA@30VAC/DC (Pressure loss, manual mode, jumper selectable)
Accuracy 1% F.S.; combined linearity, hysteresis, repeatability @20°C ambient
Operational Temperature Range 41° to 140°F (5°C to 60°C)
Temperature Coefficient ±0.1%/°C
Operating Environment 10-90% RH, non-condensing -4ºC tp 60°C
SCIM 523 in3/min@45 psi; 8520 cm3/min@310.3 kPa;
333 in3/min@20 psi; 5407 cm3/min@137.9 KPA
Supply Pressure Minimum (0.1psi plus user F.S. pressure), Maximum (45psig)
Control Range User programmable zero selectable from 0-25 psi: Full Scale 0-25 psi
Pressure Differential 0.1 psig (supply to branch)
Pressure Indication Electronic, 3-1/2 digit LCD back-light
Minimum Tubing Length 15-feet*
Port Connection 1/8 id poly tubing
Media Connection Clean dry air or inert gas. Not for use with oxygen service
or combustible gases
* For shorter tubing runs use P/N AA45 Pneumatic Capacitor
EMC Conformance: EN 61000-6-3 Class B:2001, EN 61000-6-1:2001, EN 61000-3-2:2000, EN
61000-3-3:2001
EMC Test Methods: IEC 61000-4-2:2001-04, IEC 61000-4-3:2001, IEC 61000-4-4:2001, IEC
61000-4-5:2001, IEC 61000-4-6:2004, IEC 61000-4-8:2001, IEC 61000-4-11:2001
EMC Special Note: connect this product to a DC distribution network or an AC/DC power adapter
with proper surge protection (EN 6100-6-1:2001 specification requirements).
Input
3 = PWM, Tristate
0-5/0-10VDC and
4-20mA (selectable),
programmable PSI
output
Output
0 = None
3 = Analog output:
0-10VDC, or
4-20mA,
selectable
S = Standard
C = CE
(CE versions
include cover
plate)
Feedback
3 = Pressure
Loss Alarm, or
Manual Mode
Alarm
Failsafe Option
Blank = None
2 = EP Cover
Plate
33S
1.8"
(46 mm)
3.73"
(95 mm)
3.45"
(88 mm)
2.1"
(53 mm)
4.9"
(125 mm)
SIDE VIEW - DUST COVER
FRONT VIEW - DUST COVER
quick install
Mount transducer using screws provided. Take care to avoid damaging electronic1.
components.
Configure jumpers for desired operation as shown (page 2).2.
Wire transducer as shown in wiring diagram (page 3).3.
Attach pressure tubing to hose barbs. Observe MAIN and BRANCH port labels. Use4.
flexible 1/8" I.D. poly tubing for main and branch pneumatic connections. Main
supply pressure must not exceed 45 psig.
0 = None
1 = Vent on
power fail
EP
US or EU
available
EP Series transducers are sold as an open device.
Observe handling precautions for static sensitive
devices to avoid damage to the circuitry which
would not be covered under the factory warranty.

Z203959-0D PAGE 2 ©2008 Veris Industries USA 800.354.8556 or 503.598.4564 / suppor[email protected] 06081
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inStallation GUiDe
ep3 SerieS
Auto
Manual
GND
INPUT
24V
CH2
CH1/PWM
OPERATION
MODE
TRISTATE
ALARM
P-LOSS MAN
INPUT VOLTAGE
0-10V 0-5V
TRI-PULL-UP
ON OFF
OUTPUT
4-20mA 0-10V
ALARM
OUTPUT
4-20mA/0-10V
Tristate Timing
Network
FS Point
Zero
RUN
4-20mA
Voltage
Tristate
PWM
Network
Control
SETTING
INPUT
+
-
Subtract
Pressure
Add Pressure
JUMPER/SLIDE SWITCH CONFIGURATION:
INPUT: User selectable current (4-20mA) or VOLTAGE (0-5/0-10V), Tri-state, PWM
OUTPUT STANDARD: 0-20psig
OUTPUT OPTION: 4-20mA, 0-10V
Feedback status for branch pressure
SETTINGS: User programmable Tristate Timing–travel time
Min...5 seconds
Max...600 seconds
Default...60 seconds
PWM
Min pulse setting 0.01-0.6 seconds
Full Scale (FS) scale point user programmable 0-25psi
Zero user programmable 0-25psig
After desired settings have been selected, move slide switch to the run position
MODE: Auto for normal operation or Manual to adjust pressure
OPTIONS: Analog output 4-20mA or 0-10V (branch pressure status)
Vent on power failure
Cover (Use option 2 from ordering table)
confiGuration

Z203959-0D PAGE 3 ©2008 Veris Industries USA 800.354.8556 or 503.598.4564 / suppor[email protected] 06081
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inStallation GUiDe
ep3 SerieS
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GND INPUT +24V CH2 CH1/PWM 4-20mA 0-10V ALARM CONTACTS
POWER
SOURCE
Digital Input
(Contact Closure)
4-20mA PROCESS METER
BRANCH
TRAP/
FILTER
20-45psi
Regulator
+
-
Analog Out
(0-5/0-10/4-20mA)
Common
AIR COMPRESSOR
Current/voltage Control, Current Output Example
•Input switch settings same as example 1
• Output jumper set to 4-20mA
GND INPUT +24V CH2 CH1/PWM 4-20mA 0-10V ALARM CONTACTS
POWER
SOURCE
BRANCH
PWM CONTACT
TRAP/
FILTER
20-45psi
Regulator
AIR COMPRESSOR
+
-
PWM Control Example
• Input switch set to "PWM"
• Tri-State jumper set to "ON"
GND INPUT +24V CH2 CH1/PWM 4-20mA 0-10V ALARM CONTACTS
POWER
SOURCE
BRANCH
TRI-STATE CONTACTS
CH1
OR
CH2
OR
TRAP/
FILTER
20-45psi
Regulator
AIR COMPRESSOR
+
-+
-
Subtract
Pressure
Add Pressure
Tri-state Control Example
• Input switch set to "TRI-STATE"
• Tri-State jumper set to "ON"
Current/voltage Control, Voltage Output Example
GND INPUT +24V CH2 CH1/PWM 4-20mA 0-10V ALARM CONTACTS
POWER
SOURCE
Digital Input
(Contact Closure)
0-10V PROCESS METER
BRANCH
TRAP/
FILTER
20-45psi
Regulator
+
-
Analog Out
Common
AIR COMPRESSOR
+
-
• Input switch set to voltage (0-5VDC or 0-10VDC)
• Input volt jumper set to either 0-5VDC or 0-10VDC
• Input switch set to 4-20mA
• Output jumper set to 0-10VDC

Z203959-0D PAGE 4 ©2008 Veris Industries USA 800.354.8556 or 503.598.4564 / suppor[email protected] 06081
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inStallation GUiDe
ep3 SerieS
PWM Mode
4-20mA
Voltage
Tristate
PWM
Network
Control
INPUT
Tristate Timing
Network
FS Point
Zero
RUN
SETTING
The tristate pullup is requires to ensure correct operation when using the tristate or
PWM modes.
To set the minimum pulse value, adjust the Setting and Input switches as shown:
sPecial instructions
The number displayed on the LCD screen is the minimum pulse in 100ths of a second.
If the controller receives a pulse of this duration or shorter, the output will go to 0%
of the range specified with the zero and span settings. After setting this value, wait
10 seconds before power cycling the EP. If you power cycle before 10 seconds, your
settings will be erased and the setpoint will default to the previous setting. The
full scale (100%) pulse is 126 * minimum pulse; a pulse of this duration or longer
will produce 100% output. Output is calculated as the linear ratio between the zero
and span setpoints. The minimum pulse setting has a minimum number of 1 and a
maximum number of 60. The device's internal counters measure the contact closure
time with 100Hz resolution.
Tristate Mode
The tristate pullup is required to ensure correct operation when using the tristate or
PWM modes.
Traveltime is defined as the contact closure time required to go from zero to full scale.
If traveltime is set to 10 seconds and the TRISTATE 1 input is shorted out for 5 seconds,
the output will be 50%. If the input is shorted for another 5 seconds, the output
will be 100%. If you short out TRISTATE 2 (the decreasing input) for 10 seconds, the
products output will return to 0%.
To set the travel time, adjust the Setting and Input switches as shown:
4-20mA
Voltage
Tristate
PWM
Network
Control
INPUT
Press the (+) or (-) buttons to increase or decrease the travel time. Minimum travel
time is 5 seconds; maximum is 600 seconds. After setting this value, wait 10 seconds
before power cycling the EP. If you power cycle before 10 seconds, your settings
will be erased and the setpoint will default to previous setting. The device's internal
counters measure the contact closure time with 100Hz resolution.
Note: If Tristate input is to be operated by a triac output, an AC relay is required to
provide a dry contact closure to the EP3 input.
Analog Output
The output is generated from the branch pressure. It is calculated as the ratio of the
Zero and FS Point settings, i.e. (Branch psi)/(FS-zero)= %.
For a Zero set at 0psi, FS Point at 20psi, and branch pressure at 16psi in 4-20mA:
16/(20-0)=0.80
(16mA*0.8)+4ma=16.8mA
For a Zero set at 0psi, FS Point at 20psi, and branch pressure at 16psi in voltage:
10V*0.8=8VDC
FS Point and Zero Setting
To set the Zero or FS point, move the SETTING slide switch from RUN to Zero or FS
point setting, respectively.
Slow green Normal operation
Slow green with one fast red Manual mode alarm (contacts open)
Slow green with two fast reds Pressure loss alarm active (contacts open)
Slow red SETTINGS slide switch not in RUN position
Two fast reds Slide switch not in RUN position and Alarm
(contacts open)
Three fast reds Over-voltage or over-current fault
Four fast reds Over pressure on branch side; over 25 psi.
Blink Codes
Tubing Length
Minimum tubing length is 15ft or an equivalent volume of 2.2 cubic inches. Shorter
tubing lengths can cause the unit to oscillate.
Tristate Timing
Network
FS Point
Zero
RUN
SETTING
Alarms
Alarm contacts are closed in "normal" operation (auto mode setting).
Alarm Contact: Contacts open when no power is applied or when the device
is in an alarm state.
Manual Mode Alarm: The contacts are open in manual mode setting.
Contacts will then close for normal operation. Move the P-LOSS/MAN jumper
to the manual mode setting. You do not need to power cycle the product
after moving jumpers or switches.
Pressure Loss Alarm: The contacts will open when the branch pressure falls
and stays below 20% of the desired pressure for a period of 2 minutes.
Tristate Timing
Network
FS Point
Zero
RUN
SETTING
Tristate Timing
Network
FS Point
Ze ro
RUN
SETTING
The ‘Set’ icon will appear on the LCD. Using the (+) and (-) buttons, add or decrease
the pressure setpoints.