Sensors
EPW Series
3
Configuration
EPW
JP1: Voltage (V) or current (mA) mode.
JP2: 0-10V or 0-5V output span (Voltage mode only).
JP3: Slow or fast mode. Slow mode provides 5-second averaging for surge
dampening; fast mode provides 1-second averaging.
JP6: Bidirectional or Normal. Normal mode range is from zero to full scale
dierential pressure. Bi-directional mode changes range from minus full scale
to plus full scale dierential pressure. Output will be at one half when the
dierential pressure is zero (see table below).
JP7: Port Swap or Normal. This setting is used to remedy situations when the "HI" &
"LO" ports to the pressure transducer are incorrectly plumbed. Use jumper JP7 to
reverse polarity of pressure por ts. This jumper makes the "HI" port "LO" and the
"LO" port "HI".
JP8: Analog Reverse or Normal. Normal mode output increases as pressure
increases. Reverse mode output is maximum when pressure dierential is zero
and decreases as pressure increases.
RANGE: Use range switch to select full-scale dierential pressure.
EPW2
Fast or Slow: Slow mode provides 5-second averaging for surge dampening; fast
mode provides 1-second averaging.
Bidirectional or Normal: Normal mode range is from zero to full scale dierential
pressure. Bi-directional mode changes range from minus full scale to plus full
scale dierential pressure. Output will be at one half when the dierential
pressure is zero (see table below).
Port Swap: This setting is used to remedy situations when the "HI" & "LO" ports
to the pressure transducer are incorrectly plumbed. Use jumper "Por t Swap" to
reverse polarity of pressure por ts. This jumper makes the "HI" port "LO" and the
"LO" port "HI".
Analog Reverse or Normal: Normal mode output increases as pressure increases.
Reverse mode output is maximum when pressure dierential is zero and
decreases as pressure increases.
Range: Use range switch to select full-scale dierential pressure. Select psi or bar
by positioning jumper.
Operation
LED INDICATOR (EPW Only)
GREEN ON (solid): Normal
GREEN (blinking): Low > High - Use port swap jumper or bidrectional mode.
RED ON (solid): Dierential Pressure is too high. Select a higher range on device.
RED (blinking): Gauge pressure has exceeded sensor; F.S. Reduce line pressure or
replace with a higher range device.
ZERO
Press and hold the “ZERO” push-button for 2 seconds or provide contact closure on
auxiliary “REMOTE ZERO” terminal to automatically reset output to ZERO pressure.
To protect the unit from accidental ZERO, this feature is enabled only when detected
pressure is within 5% of fac tory calibration.
Product Identification
Range
Local Display
EPW
103 = 0-50psig
104 = 0-100psig
105 = 0-250psig
Range
Blank = No Disp lay
LCD = LCD Display
Local Display
EPW2
103 = 0-50psig
104 = 0-100psig
105 = 0-250psig
Select operationa l range according to the max. gau ge pressure, NOT dierential pre ssure.
Example: For hi-ga uge pressure = 90psig, select the 100psig model.
Note: The EPW Series is 3-wire. The EPW2 Series is 2-wire, loop-powered.
Blank = No Disp lay
LCD = LCD Display
Bi-directional Operation
Input Conditions psi Result Outputs Read
Hi Port Lo Port DP 4-20mA
100 0 +100 20
100 50 +50 16
50 50 0 12
50 100 -50 8
0 100 -100 4
Schneider Electric
F- 276 67-1 October 2 009 a o
© 2009 Schneider Electric. All rights reserved.
Sensors
EPW Series
Available Products
Part Number Product Description
EPW103 Differential Pressure Transducer - Wet Media 0-50 psig 0-5VDC/0-10VDC/4-20mA
EPW103-LCD Differential Pressure Transducer - Wet Media 0-50 psig 0-5VDC/0-10VDC/4-20mA w/LCD
EPW104 Differential Pressure Transducer - Wet Media 0-100 psig 0-5VDC/0-10VDC/4-20mA
EPW104-LCD Differential Pressure Transducer - Wet Media 0-100 psig 0-5VDC/0-10VDC/4-20mA w/LCD
EPW105 Differential Pressure Transducer - Wet Media 0-250 psig 0-5VDC/0-10VDC/4-20mA
EPW105-LCD Differential Pressure Transducer - Wet Media 0-250 psig 0-5VDC/0-10VDC/4-20mA w/LCD
EPW2103 Differential Pressure Transducer - Wet Media 0-50 psig 4-20mA
EPW2103-LCD Differential Pressure Transducer - Wet Media 0-50 psig 4-20mA w/LCD
EPW2104 Differential Pressure Transducer - Wet Media 0-100 psig 4-20mA
EPW2104-LCD Differential Pressure Transducer - Wet Media 0-100 psig 4-20mA w/LCD
EPW2105 Differential Pressure Transducer - Wet Media 0-250 psig 4-20mA
EPW2105-LCD Differential Pressure Transducer - Wet Media 0-250 psig 4-20mA w/LCD
Notice:
4
This produ ct is not intended for life or safet y applications.
Do not insta ll this product in hazardous or cla ssified locations.
Read and understa nd the instructions before installing this p roduct.
Turn off all power supplying equ ipment before working on it .
The insta ller is responsible fo r conformance to all applic able codes.
Schneider Electric
F- 276 67-1 October 2 009 a o
© 2009 Schneider Electric. All rights reserved.
Loading...