Rockwell Automation 1414-CPZxxxxx_IPZxxxxx Differential Liquid/Gas Pressure Transmitter - Manual (Page 4)

4 Differential Liquid/Gas Pressure Transmitter
Publication 1414-IN014A-EN-P - October 2005
Current to the positions marked Voltage. Always note the current jumper position
first and then move them to the new position. If the jumpers are rotated 90 degrees
and installed incorrectly the product will not work and damage may occur. In
voltage mode the output scale may be changed to either 0-5 or 0-10 Vdc by moving
the single jumper to the 5V or 10V position. The Range and Options switches can
be changed while the unit is operating. However, the output jumpers can only be
changed while the power is removed.
The jumper marked Light is not used. The input pressure range (as shown on the
product label) is set by moving the 4- position slide switch marked RANGE.
Bidirectional operation, port swap, slow damping and analog reverse functions are
available by switching the appropriate DIP switch position to ON.
• Bidirectional
This switch changes the range from 0 to full scale differential pressure to
minus full scale to plus full scale differential pressure. The analog output will
read ½ when the differential pressure is zero. The example below shows the
results when Range 1 (0 to 100 psi) and bidirectional mode (-100 to 100 psi)
are selected.
• Port Swap
This switch reverses the polarity of the pressure ports. It makes the HIGH
port ‘low’ and the LOW port ‘high’. This is useful to correct plumbing errors.
• Slow Damping
This switch provides an 8-second averaging for surge dampening (normally
it is 4-seconds).
• Output Reverse
This switch reverses the output signal polarity. In reverse mode the analog
output is maximum when the pressure differential is zero and decreases as
pressure increases.
HIGH port LOW port Differential
Pressure 4-20 mA 0-5 V
100 PSI 50 PSI 50 PSI 16 mA 3.75 V
50 PSI 100 PSI -50 PSI 8 mA 1.25 V
50 PSI 50 PSI 0 PSI 12 mA 2.5 V
100 PSI 0 PSI 100 PSI 20 mA 5 V