Veris EP3 Installation Instructions

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1.8"

(46 mm)

3.73"

(95 mm)

3.45"

(88 mm)

2.1"

(53 mm)

4.9"

(125 mm)

ENVIRONMENTAL SENSORS

EP3

Electropneumatic Transducer

available

NOTICE

• This product is not intended for life or safety applications.

• Do not install this product in hazardous or classied locations.

• Read and understand the instructions before installing this product.

• Turn oﬀ all power supplying equipment before working on it.

• The installer is responsible for conformance to all applicable codes.

INSTALLATION GUIDE

SPECIFICATIONS

Input Power 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, 250 Ω; 0-5/0-10V, 10 kΩ Manual Override Digital pushbutton adjust, switch selectable mode Alarm Contact 100mA@30VAC/DC (Pressure loss, manual mode, jumper selec table) Accuracy 1% F.S.; combined linearity, hysteresis, repeatability @20°C ambient Temperature Coecient ±0.1%/°C Operational Temperature Range 5°C to 60°C (41° to 14 0°F) Operating Humidity Range 10-90% RH, non-condensing 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 (0.1 psi plus user F.S. pressure), maximum (45 psig) Control Range User pro grammable zero selectable from 0-25 psi: full scale 0-25 psi Pressure Dierential 0.1 psig (supply to branch) Pressure Indication Electronic, 3½ digit backlit LCD Minimum Tubing Length 15 feet* Port Connection 1/8 i.d. poly tubing Media Connection Clean dry air or inert gas. Not for use with oxygen service

* For shorter tubing runs use the Veris AA45 Pneumatic Capacitor EMC Conformance: EN 61000- 6-3 Class B:2007+A1 2011, EN 61000- 6-1:2007, EN 61000-3-2:2000, EN 61000-3-3:2001 EMC Special Note: connect this produ ct to a DC distribution network or an AC/DC po wer adapter with proper surge protection (EN 6100-6-1:2001 specication requirements).

No responsibility is assumed by Veris Industries for any consequences arising out of the

use of this material.

PRODUCT IDENTIFICATION

Output

EP3

0 = None 3 = Analog out put: 0-10VDC or 4-2 0mA (selectable)

Feedback

3 = Pressur e Loss Alarm o r Manual Mode Alarm

Failsafe Option

0 = None 1 = Vent on power fail

US or EU

S = Standard C = CE (CE versions include cov er plat e)

Blank = None 2 = EP Cover Plate

DIMENSIONS

FRONT VIEW - DUST COVER

INSTALLATION

Observe precautions for handling static sensitive devices to avoid damage to the circuitry that is not covered under the factory warranty.

1. Mount the EP3 transducer using the screws provided.

2. Congure the jumpers for desired operation as shown (page 2).

3. Wire the transducer as shown in the wiring diagram (page 3).

4. Attach pressure tubing to the hose barbs. Observe MAIN and BRANCH port labels. Use exible 1/8” I.D. poly tubing for main and branch pneumatic connections.

Main supply pressure must not exceed 45 psig.

SIDE VIEW - DUST COVER

Alta Labs, Ene rcept, Enspector, Hawk eye, Trustat, Aerospon d, Veris, and the Veris ‘V ’ logo are tradem arks or registe red trademarks o f Veris Industries, L .L.C. in the USA and/or ot her countries.

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

Tristate Timing Network FS Point Zero RUN

4-20mA Voltage Tristate

PWM

Network

Control

SETTING

INPUT

Subtract

Pressure

Add Pressure

4-20mA

Output

0-10V

Output

EP3

CONFIGURATION

Switch/Jumper Description

Input User selectable slide switch: current (4-20 mA), voltage (0-5/0-10

V), Tristate, or PWM (min 0.01-0.60 sec, max 1.0-75.0 sec).

Note: the Network Control option is disabled.

Input Voltage* If voltage input is selected, use this jumper to choose 0-5 or 0-10 V.

Tri Pull-up If tristate input is selected, use this jumper to turn the pull-up on

or o.

Alarm Phase loss or manual

Output Use this jumper to select 4-20 mA or 0-10 V output (feedback status

for branch pressure.

Setting User selectable slide switch: Tristate timing (min 1 sec; max 600 sec,

default 60 sec), FS Point (scale point user programmable 0-25 psi), Zero (user programmable 0-25 psig), Run.

Note: the Network option is disabled.

Mode Auto for normal operation; Manual to adjust pressure.

Set this switch last.

* EP3 accepts DC input only. To use with AC input, include a Veris AA49 Triac Adapter in series between the input voltage a nd the EP3.

INSTALLATION GUIDE

WIRING

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

EP3

INSTALLATION GUIDE

Current/voltage Control, Voltage Output Example

• 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

AIR COMPRESSOR

Current/voltage Control, Current Output Example

TRAP/

GND

POWER SOURCE

INPUT

+24V

FILTER

CH2

CH1/PWM

BRANCH

4-20mA

0-10V

• Input switch settings same as example 1

• Output jumper set to 4-20mA

ALARM CONTACTS

4-20mA PROCESS METER

20-45psi

Regulator

Digital Input (Contact Closure)

Analog Out (0-5/0-10/4-20mA) Common

PWM Control Example

GND

POWER SOURCE

TRAP/ FILTER

INPUT

+24V

CH2

CH1/PWM

PWM CONTACT

• Input switch set to "PWM"

• Tri-State jumper set to "ON"

BRANCH

4-20mA

0-10V

AIR COMPRESSOR

ALARM CONTACTS

AIR COMPRESSOR

20-45psi

Regulator

Tri-state Control Example

TRAP/

GND

POWER SOURCE

INPUT

+24V

FILTER

CH2

CH1/PWM

CH1ORCH2

Pressure

Subtract

TRI-STATE CONTACTS

Add Pressure

20-45psi

Regulator

BRANCH

4-20mA

0-10V

ALARM CONTACTS

• Input switch set to "TRI-STATE"

• Tri-State jumper set to "ON"

SPECIAL INSTRUCTIONS

PWM Mode

To set the minimum pulse value, adjust the Input and Setting switches as shown:

EP3

INPUT

4-20mA Voltage Tristate

PWM

Network

Control

"LO" momentarily appears on the LCD, indicating that the minimum pulse width is

being set. Use the (+) and (-) buttons to increase or decrease this value. To set the

maximum pulse width push both buttons simultaneously. "HI" momentarily appears,

indicating that the maximum pulse width is being set. Push both buttons to toggle

between the "HI" and "LO" settings. To save these settings, move the Setting slide

switch to RUN.

If the controller receives a pulse that is shorter than the minimum pulse width, the output goes to 0% of the range set with the zero and span settings. If the controller sees a pulse that is the same or longer than the maximum pulse width, the output goes to 100% of the range selected with the zero and span settings.

In this example the minimum pulse width is set to 0.60 sec, the maximum is set to 10 sec, zero is set to 0, and span is set to 10 psi. Assume the controller receives a pulse of 5 sec duration:

Pulse range = 10 sec – 0.60 sec = 9.4 sec

Pressure range = span – zero = 10 – 0 = 10

Output = (5 / 9.4) x 10 = 5.3 psi

Tristate Mode

Traveltime is dened 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 connected to ground for 5 seconds, the output is 50%. If the input is connected to ground for another 5 seconds, the output is 100%. If TRISTATE 2 (the decreasing input) is grounded for 10 seconds, the products output return to 0%.

To set the travel time, adjust the Setting and Input switches as shown:

INPUT

4-20mA Voltage Tristate

PWM

Network

Control

Press the (+) or (-) buttons to increase or decrease the travel time. Minimum travel time is 1 second; maximum is 600 seconds. To save these settings, move the Setting slide switch to RUN. The device's internal counters measure the contact closure time with 100 Hz resolution.

Note: If Tristate input is to be operated by a triac output (Veris AA49), use an AC relay to provide a dry contact closure to the EP3 input.

Tubing Length

Minimum tubing length is 15 feet or an equivalent volume of 2.2 cubic inches. Shorter tubing lengths cause the unit to oscillate.

SETTING

Tristate Timing Network FS Point Zero RUN

INSTALLATION GUIDE

Analog Output

The output is generated from the branch pressure. It is calculated as follows:

FS = Full Scale Point

Zero = Zero setting

In volt mode:

Pressure = (10 / (FS - Zero)) * Voltage + Zero Voltage = (Pressure - Zero) / (FS - Zero) * 10

In current mode:

Pressure = (FS - Zero) * ((Current - 4) / 16) + Zero Current (in mA) = ((Pressure - Zero) / (FS - Zero)) * 16 + 4

Examples:

Zero setting = 5 psi; Span = 20 psi; Branch pressure = 16 psi Volt mode: Voltage = ((16 - 5) / (20 - 5)) * 10 = 7.33 V Current mode: Current = ((16 - 5) / (20 - 5)) * 16 + 4 = 15.73 mA

Alarms

Auto Mode: Alarm contacts are closed in normal operation and are open when no power is applied or when the device is in an alarm state.

Manual Mode: Alarm contacts are open in manual mode setting and closed for normal operation. Move the P-LOSS/MAN jumper to the manual mode setting. You do not need to power cycle the product af ter moving jumpers or the Auto/Manual switch.

Pressure Loss Alarm: Contacts open when the branch pressure falls and stays below 20% of the desired pressure for a period of 2 minutes.

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.

SETTING

Tristate Timing Network FS Point Zero RUN

The ‘Set’ icon appears on the LCD. Use the (+) and (-) buttons to increase or decrease the pressure setpoints.

LED Blink Codes

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 Settings slide switch not in Run position and Alarm

Three fast reds Over-voltage or over-current fault

Four fast reds Over pressure on branch side; over 25 psi.

(contacts open)

SETTING

Tristate Timing Network

FS Point Zero RUN

Veris EP3 Installation Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual