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EP3 Series Installation Guide
Special Instructions
(cont.)
Z203959-0H
Page 5 of 5
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris 'V' logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
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 after moving jumpers.
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
SETTING
Tristate Timing
Tristate Timing
Network
or
Network
FS Point
FS Point
Zero
Zero
RUN
RUN
The 'Set' icon appears on the LCD. Use the (+) and (-) buttons to increase or decrease the pressure setpoints.
LED Blink Codes
Slow green
Slow green with one fast red
Slow green with two fast reds
Slow red
Two fast reds
Three fast reds
Four fast reds
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Other companies' trademarks are hereby acknowledged to belong to their respective owners.
Normal operation
Manual mode alarm (contacts open)
Pressure loss alarm active (contacts open)
SETTINGS slide switch not in Run position
Settings slide switch not in Run position and Alarm
(contacts open)
Over-voltage or over-current fault
Over pressure on branch side; over 25 psi.
0820
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