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

4 Gauge Liquid/Gas Pressure Transmitter
Publication 1414-IN015A-EN-P - October 2005
Configure the Gauge Liquid/Gas Pressure Transmitter
As shown on the printed circuit board diagram, push-on jumpers and switches are
used to select the output signal type, the input pressure range and several features.
The device is factory configured to operate in the 4-20 mA output mode but can be
changed to voltage mode by moving the two jumpers from the positions marked
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.
Slow damping and analog reverse functions are available by switching the
appropriate DIP switch position to ON.
• 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.
Operation
For normal operation such as 0-100 PSI, the port is used to measure a positive
pressure and 0 PSI = 4 mA and 100 PSI = 20 mA.
Calibration
With the port open to the ambient pressure (or with the port equalized at 0
pressure), press and hold the auto-zero button or provide contact closure on the
ZERO terminals for at least 3 seconds. Release the button or terminals and the
device will calculate and store the new zero point. To protect the unit from
accidental zeroing this feature is enabled only when the detected pressure on the