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Summary of Contents for Kobold PDA Series
- Page 1 KOBOLD PDA Series Digital Pressure Transmitter PDA-153 Series User Instructions KOBOLD Instruments Inc. 1801 Parkway View Drive Pittsburgh, PA 15205 Phone (412) 788-2830 • Fax (412)-788-4890 • www.koboldusa.com...
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Page 2: Table Of Contents
Table Of Contents KOBOLD PDA Series Digital Pressure Transmitter General ..........1 Specifications . -
Page 3: General
General The KOBOLD PDA Series is a solid state, electronic pressure transmitter which employs a ceramic sensor element as the heart of the sensing system. The ceramic sensing element provides excellent corrosion resistance and very high cycle life with virtually no calibration drift over its service life. - Page 4 Table 2.1 Part Number Identification PDA = Compact Electronic Pressure sensor = 4-20 mA, three-wire Output Type = 1/4” NPT Fitting = 1/2” NPT Range Available Measuring Ranges H315 = -30” to 0” Hg P095 = 350 PSIG P025 = 15 PSIG P105 = 600 PSIG P045 =...
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Page 5: Mechanical Installation
Diagram 2.1 Dimensions N1.75 0.47 N1.25 1/2” or 1/4” Mechanical Installation The following general installation instructions and precautions must be followed to insure proper, reliable operation: 1. Select a suitable location on the piping system for installation. Installation in a location where sediments can collect in the pressure sensing port (such as the underside of a horizontal piping run) will cause sluggish or faulty operation. -
Page 6: Electrical Installation
Electrical Installation The following electrical installation instructions and precautions must followed to insure proper sensor and analog output operation. Failure to follow these instructions may result in irreparable damage to the sensor: 1. This device requires a power supply rated at 24 VDC ±20%. The current requirement is 80 mA maximum. -
Page 7: Operation
Operation Diagram 5.1 Displays and Controls Hold for 3 seconds to enter programming menu. Press to step through menu Press to enter a menu programming branch, or change a display value Programming Functions The PDA digital pressure transmitter is programmed via membrane push-buttons on the faceplate of the device as shown in the following figure. -
Page 8: Diagram 5.3 Sequence To Change A Value
5.1.1 Changing Values in Setup Mode When in the Setup Mode the actual values of zero, span, dampening and other functions are adjusted as required by the user. From the main menu (e.g. Change Code “CCo”), press the “ ” button to adjust that functions value. The following diagram shows the sequence of steps required to change a value. -
Page 9: 5.1.2 Programming Flow Chart
5.1.2 Programming Flow Chart Diagram 5.4 Programming Flowchart FM Rev. 7/15/01... -
Page 10: Programming Menu Item Descriptions
Programming Menu Item Descriptions After the Button is depressed for three seconds to enter the setup mode, and the lockout code is entered (if lockout is enabled), the programming menu is accessed. Diagram 5.4 provides a flowchart of the programming menu. Section 5.1.1 and diagram 5.2 and 5.3 provide details on how to change the value of each menu item parameter. -
Page 11: Diagram 5.5 Start Current And End Current Example
A Filt value of “1” shuts off the filtering. When filtering is being used, the PDA series employs an integrated overshoot function which detects any overshoot above 6.25% and processes that measured value without filtering. -
Page 12: Maintenance
This menu item allows the user to zero the pressure sensing element if desired. The ceramic pressure sensing element used by the PDA series takes about 15 minutes for the zero to stabilize after power is applied. Therefore if zeroing is desired, for best results wait for at least 15 minutes after power is applied to do so. - Page 13 CAUTION PLEASE READ THE FOLLOWING WARNINGS BEFORE ATTEMPTING INSTALLATION OF YOUR NEW DEVICE. FAILURE TO HEED THE INFORMATION HEREIN MAY RESULT IN EQUIPMENT FAILURE AND POSSIBLE SUBSEQUENT PERSONAL INJURY.
- Page 14 • Make a Fail-safe System: Design a fail-safe system that accommodates the possibility of device or power failure. In critical applications, KOBOLD recommends the use of redundant backup systems and alarms in addition to the primary system. FM Rev. 7/16/01...
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