PRECISION DIGITAL PD655 User manual

PD655 Large Display Process Meter With
Rate/Totalizer/Batch Control Features
Instruction Manual
•Easy Single Button Scaling (SBS)
•4-20 mA, 1-5 V, 0-5 V, or 0-10 V Field Selectable Inputs
•Large 1.0" (25.4 mm) High LEDs
•Full Six Digit Display for Total, 4½ Digit + Extra Zero for Process/Rate
•Total Displayed in any Engineering Unit
•Display in Engineering Units; Rate per Second, Minute, Hour, or Day
•Scale Without a Calibrator
•11-Point Calibration for Non-Linear Inputs
•Automatic Square Root and Programmable Exponent
•Low-Flow Cutoff
•NEMA 4X Impact-Resistant Glass Filled Polycarbonate Enclosure
•Two 24 VDC Isolated Power Supplies
•115 or 230 VAC Power, Field Selectable; 24 VDC Optional
•Quick Preset Change Feature for Batch Control
•Pump Alternation Control Feature
•2 or 4 Relays + 4-20 mA Output Options
Order from:
C A Briggs Company
622 Mary Street; Suite 101
Warminster, PA 18974
Phone: [phone] - Fax: [phone]
[email protected] - www.cabriggs.com

Model PD655 Large Display Process Meter Instruction Manual
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Visit our Website
http://www.predig.com

Model PD655 Large Display Process Meter Instruction Manual
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Table of Contents
INTRODUCTION ----------------------------------------------------------------------- 7
Key Features ----------------------------------------------------------------------------------- 7
Typical Applications-------------------------------------------------------------------------8
Ordering Information ------------------------------------------------------------------------8
Safety Notice ----------------------------------------------------------------------------------- 9
Specifications-------------------------------------------------------------------------------- 10
Basic Process Meter--------------------------------------------------------------------- 10
Rate/Totalizer/Batch Controller Features------------------------------------------- 11
Options -------------------------------------------------------------------------------------- 12
Display Functions and Messages----------------------------------------------------- 15
SETUP AND PROGRAMMING -------------------------------------------------- 17
Overview--------------------------------------------------------------------------------------- 17
Disassembling the Meter----------------------------------------------------------------- 18
Reassembling the Meter ----------------------------------------------------------------- 18
Jumper Configuration--------------------------------------------------------------------- 19
Overview------------------------------------------------------------------------------------ 19
Jumper Arrays Function and Location ---------------------------------------------- 19
Power Selection----------------------------------------------------------------------------- 20
Overview------------------------------------------------------------------------------------ 20
Changing from 115 to 230 VAC Power --------------------------------------------- 20
Labeling Meter for 115 VAC, 230 VAC, or 24 VDC ------------------------------ 20
Connections---------------------------------------------------------------------------------- 21
Overview------------------------------------------------------------------------------------ 21
Wiring Instructions------------------------------------------------------------------------ 22
Terminals Designation ------------------------------------------------------------------ 22
Power Connections ---------------------------------------------------------------------- 23
Signal Connections ---------------------------------------------------------------------- 24
Enter, Acknowledgement, and Reset Total Connections----------------------- 26
Optional Relays & 4-20 mA Output Terminals ------------------------------------ 26
Isolated 4-20 mA Output Option Connections------------------------------------- 27
Programming -------------------------------------------------------------------------------- 28
Overview------------------------------------------------------------------------------------ 28
General Programming Description --------------------------------------------------- 28
ENTER and ACK Functionality ---------------------------------------------------- 28
Five Basic Digit/Display Setting Instructions ----------------------------------- 30
Basic Meter Programming-------------------------------------------------------------- 32
Overview -------------------------------------------------------------------------------- 32
Select Input Signal-------------------------------------------------------------------- 32
Select Calibration Method ---------------------------------------------------------- 33
Initial Calibration With External Source (if Needed) -------------------------- 33
Scale or Calibrate the Meter ------------------------------------------------------- 34
Scale Using Internal Calibration (I-CAL) ------------------------------------ 34
Minimum Input Span (Error Message) ------------------------------------- 35
Calibrate Using External Calibration (E-CAL)------------------------------- 38
Calibrate Using External Calibration (E-CAL)------------------------------- 38
Round Horizontal Tank Calibration Points ---------------------------------- 40
Calibration Error (error) -------------------------------------------------------- 40
Rate Meter Programming--------------------------------------------------------------- 41

Model PD655 Large Display Process Meter Instruction Manual
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Overview -------------------------------------------------------------------------------- 41
Set Display to Rate (dSPy r) ------------------------------------------------------ 41
Low-flow Cutoff Programming (Cutoff) ---------------------------------------- 42
Totalizer Programming ------------------------------------------------------------------ 43
Overview -------------------------------------------------------------------------------- 43
Set Display for Total (dSPy t) ----------------------------------------------------- 43
Set Rate Time Base (t baSE) ----------------------------------------------------- 44
Set Totalizer Conversion Factor (tot CF) -------------------------------------- 44
Set Totalizer Decimal Point (tot dp)-------------------------------------------- 45
Set Alternating Total/Rate Display------------------------------------------------ 46
Parameter Combinations Resulting in Error Message (error1 ) --------- 46
Set Point Setup and Programming--------------------------------------------------- 47
Overview -------------------------------------------------------------------------------- 47
Set Relays for Manual or Automatic Reset ------------------------------------- 48
Set Relays for Fail-Safe Operation ----------------------------------------------- 48
Assigning Set Points to Process/Rate or Total (setup) --------------------- 49
Rate or Total, Latching or Non-Latching Relays--------------------------- 50
Programming Internal Total Reset and Delay (DELAy)------------------- 52
Setting Relays for Pump Alternation (ALtERn) ------------------------------------ 53
Programming Alarm Points and Presets (SEtPtS) --------------------------- 54
Overview----------------------------------------------------------------------------- 54
Set and Reset Points for Process/Rate Alarms---------------------------- 54
Preset Values for Total Set Points -------------------------------------------- 54
Preset Offset Values for Total Set Points (OFFSET)----------------------- 54
Programming Alarm and Preset Values (SEtPtS) ------------------------ 55
4-20 mA Isolated Output Option Programming (output)----------------------- 59
4-20 mA Output Programming Confirmation ------------------------------- 59
Lockout and Display Selection Programming ------------------------------------- 60
Overview -------------------------------------------------------------------------------- 60
Lockout ---------------------------------------------------------------------------------- 60
Display Selection (dSPLAy) --------------------------------------------------------- 61
Alternating Display ---------------------------------------------------------------- 62
Include or Exclude Menu Titles From Menu Scroll------------------------ 63
OPERATION -------------------------------------------------------------------------- 64
Overview--------------------------------------------------------------------------------------- 64
Two Types of Display: Process/Rate and Total ---------------------------------- 65
Basic Meter Operation -------------------------------------------------------------------- 66
Overview------------------------------------------------------------------------------------ 66
ENTER and ACK Button Operation -------------------------------------------------- 66
Display Peak & Reset Peak Operation (dSPY P & rSEt P) ------------------- 67
Rate Meter Operation---------------------------------------------------------------------- 68
Overview -------------------------------------------------------------------------------- 68
Display Rate (dSPy r) --------------------------------------------------------------- 68
Low-Flow Cutoff (CutoFF) ---------------------------------------------------------- 68
Totalizer Operation------------------------------------------------------------------------- 69
Overview------------------------------------------------------------------------------------ 69
Display Total (dSPy t)--------------------------------------------------------------- 69
Total Conversion Factor (tot CF) & Time Base (t bASE) ----------------- 69
Applications Using Total Conversion Factor and Time Base -------------- 70
Totalizer Reset------------------------------------------------------------------------- 71
Resetting Total Using the ENTER Button ----------------------------------- 71
Resetting Total via External Contact Closure ------------------------------ 71

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Resetting Total Automatically via User Selectable Preset -------------- 71
Relays Operation --------------------------------------------------------------------------- 72
Overview------------------------------------------------------------------------------------ 72
Relays Auto Initialization---------------------------------------------------------------- 72
Fail-Safe Operation ---------------------------------------------------------------------- 72
Front Panel LEDs------------------------------------------------------------------------- 73
Acknowledging Relays ------------------------------------------------------------------ 75
Simple On/Off Control with 100% Deadband Operation------------------------ 76
Manual Batch Control Operation ----------------------------------------------------- 78
Automatic Batch Control Operation -------------------------------------------------- 79
Delay on Release (delay) ------------------------------------------------------ 80
Priority Batch Programming or Quick Presets------------------------------------- 80
Batch Control with Varying Batch Sizes -------------------------------------------- 80
Pump Alternation Control--------------------------------------------------------------- 81
Pump Alternation Typical Application -------------------------------------------- 81
Switching Inductive Loads-------------------------------------------------------------- 82
AC and DC Loads--------------------------------------------------------------------- 82
Low Voltage DC Loads -------------------------------------------------------------- 82
4-20 mA Output Operation--------------------------------------------------------------- 83
Overview------------------------------------------------------------------------------------ 83
Lockout and Display Selection Operation ----------------------------------------- 83
Overview------------------------------------------------------------------------------------ 83
Low Voltage Detector --------------------------------------------------------------------- 83
INSTALLATION ---------------------------------------------------------------------- 84
Wall Mounting Dimensions-------------------------------------------------------------- 85
Panel Mounting Instructions------------------------------------------------------------ 86
OPTION CARD REMOVAL & INSTALLATION------------------------------ 87
PROGRAMMED PARAMETER SETTINGS ---------------------------------- 89
Diagnostic Feature (dIA9)--------------------------------------------------------------- 93
Overview------------------------------------------------------------------------------------ 93
Operation ----------------------------------------------------------------------------------- 93
OTHER PRECISION DIGITAL PRODUCTS ---------------------------------- 94

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List of Figures
Figure 1. Removing the Display Board....................................................... 18
Figure 2. Input Power Label ........................................................................ 20
Figure 3. Connections and Jumper Diagram ............................................. 21
Figure 4. Options Board Connectors and J5 Jumper ............................... 22
Figure 5. Input Power Connections ............................................................ 23
Figure 6. Two-Wire Transmitter Powered by Meter ................................... 24
Figure 7. Two-Wire Transmitter Powered by External Supply.................. 24
Figure 8. Three-Wire Transducer Powered by Meter................................. 25
Figure 9. Direct Voltage Signal Connections............................................. 25
Figure 10. Optional Unregulated Supply Connections ............................... 25
Figure 11. External Control Connections..................................................... 26
Figure 12. Relay and 4-20 mA Output Terminals......................................... 26
Figure 13. Both Input and Output Loops Powered by Meter ...................... 27
Figure 14. Input Loop Powered by Meter, Output Loop Powered from
External Supply ............................................................................ 27
Figure 15. Jumper Arrays and Status LED Identification ........................... 29
Figure 16. Two-Point Calibration Flowchart ................................................ 31
Figure 17. JP1 Input Signal Selection Array. ............................................... 32
Figure 18. Display Showing Location of Set Point LEDs............................ 55
Figure 19. Display Showing Location of Set, Reset, and Rate LEDs......... 55
Figure 20. Programming Status of Set Point LEDs Assigned to Total ...... 56
Figure 21. Functions Locked Out with the Lockout Jumper ...................... 60
Figure 22. Menu Titles Excluded with Display Menu................................... 61
Figure 23. Front Panel LEDs ......................................................................... 64
Figure 24. Meter Displaying Process/Rate ................................................... 65
Figure 25. Meter Displaying Total ................................................................. 65
Figure 26. Front Panel LED Indicator Locations.......................................... 73
Figure 27. AC and DC Loads Protection ...................................................... 82
Figure 28. Low Voltage DC Loads Protection .............................................. 82
Figure 29. Overall Dimensions...................................................................... 84
Figure 30. Wall Mounting Dimensions.......................................................... 85
Figure 31. Wall Mounting Screw ................................................................... 85
Figure 32. Panel Mounting Instructions ....................................................... 86
Figure 33. Removing the Display Board....................................................... 87
Figure 34. Options Board Standoffs Location ............................................. 87
Figure 35. Installing Option Board................................................................ 88

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INTRODUCTION
This instrument is an analog input process meter with flow rate, totalizer, and
batch control capabilities housed in a rugged, impact-resistant glass filled
polycarbonate, NEMA 4X enclosure. It accepts the common process signals
such as 4-20 mA, 0-5 VDC, 1-5 VDC, and 0-10 VDC. It displays these signals in
engineering units on a 1.0" high 4½ digit LED display. The meter also provides
two isolated 24 VDC power supplies to drive both the input and output loops.
Options include up to 4 relays for alarms or batch controlling as well as an
isolated 4-20 mA transmitter output.
Key Features
This model contains several features of interest:
• Two 24 VDC Isolated Transmitter Power Supplies*
• 115 or 230 VAC Field Selectable Power
• Rate Display in Units per Day, in Addition to Second, Minute, and Hour
• Programmable Set points for Latching and Non-Latching Relay Operation
• Built-in Snubbers on Each Relay Contact
• Any Set Point Programmable for Process/Rate or Total
• Quit or Exit Menu Scroll with ACK Button
• Pump Alternation Control Feature for Rate Relays
• Automatic Square Root Extraction for Differential Pressure Transmitters
• Programmable Exponent for Weirs and Flumes
*Optional 18 VDC (nominal) @ 200 mA (maximum) unregulated power supply
can be provided instead of the two 24 VDC supplies. See Ordering Information,
page 8 for details.

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Typical Applications
Level:
Sump Pump Control
Water Tank Level
Round Horizontal Tank Volume Measurement
Well Draw-down
Lift Station Control
Flow:
Square Root Extraction from Differential Pressure Transmitter
Programmable Exponent for Weirs and Flumes
Rate, Total, and Batch Control
Pressure:
Compound Pressure
High Pressure Alarms
Temperature:
Heat Exchanger Display and Alarm
Boiler Temperature Monitoring
Gas Turbine Combustor Alarm
Condenser Temperature Indicator
Ordering Information
115/230 VAC
Model1
24 VDC
Model
Options Installed
PD655-N PD655-2-N No Options
PD655-44 PD655-2-44 2 Relays
PD655-45 PD655-2-45 4-20 mA Output
PD655-46 PD655-2-46 2 Relays + 4-20 mA Output
PD655-47 PD655-2-47 4 Relays
PD655-48 PD655-2-48 4 Relays + 4-20 mA Output
Accessories
PDA6554 Panel Mounting Kit2
PDA6545 2" Pipe Mounting Kit
1Optional 18 VDC (nominal) @ 200 mA (maximum) unregulated power supply
can be provided instead of the two 24 VDC supplies. Request modification
MOD0010.
2The PDA6554 panel mounting kit is not intended to provide waterproof
protection to the panel.

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Safety Notice
CAUTION: Read complete
instructions prior to installation and
operation of the unit.
WARNING: Risk of electric shock.
Observe all safety regulations. Electrical wiring should be performed in
accordance with all applicable national, state, and local codes to
prevent damage to the unit and ensure personnel safety.
Do not use this use this unit to directly drive heavy equipment such as
pumps, motors, valves, etc.
It is recommended to use this meter in a fail-safe system that
accommodates the possibility of meter failure or power failure.
WARNING
Hazardous voltages exist within enclosure. Only trained service personnel
should perform installation and service.
AVERTISSMENT
Les pièces à l'intérieur du boîtier portent des tensions dangereuses. Seules
des personnes qualifiées et bien entrainées devraient entreprondre
l'ótalonnage et la maintenance.
Disclaimer
The information contained in this document is subject to change without notice.
Precision Digital makes no representations or warranties with respect to the
contents hereof, and specifically disclaims any implied warranties of
merchantability or fitness for a particular purpose.

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Specifications
Except where noted all specifications apply to operation at +25°C.
Basic Process Meter
INPUTS Field selectable:
4-20 mA, 0-20 mA, 0-5 V, 1-5 V, 0-10 V
DISPLAY Six digit, 1.0" (25.4 mm) high efficiency red LED.
Rate: -19999(0) to 29,999(0) with selectable extra zero
Total: 0 to 999,999; automatic lead zero blanking
DECIMAL POINT Process/rate display: 2.9999, 29.999, 299.99, 2999.9, or
299990. Total decimal point: 9.99999, 99.9999, 999.999,
9999.99, or 99999.9. Rate and total decimal points are
independent of each other.
CALIBRATION
RANGE
4 mA (1 V) input may be set anywhere in range of the meter.
20 mA (5 V) may be set anywhere in range of the meter above
or below 4 mA input. An Error message will appear if input 1
signal and input 2 signals are too close together.
Input Range Minimum Difference Between
Input 1 & Input 2
0-5 V 0.16 V
0-10 V 0.32 V
4-20 mA 1.60 mA
INPUT IMPEDANCE Voltage ranges: greater than 300 KΩ
Current ranges: 100 Ω
LOOP POWER
SUPPLY
Two isolated power supplies, 24 VDC ± 5% @ 20 mA each,
regulated. Maximum loop resistance is 1200 Ω.
OPTIONAL POWER
SUPPLY
18 VDC (nominal) @ 200 mA (maximum) unregulated power
supply can be provided instead of the two 24 VDC supplies.
ACCURACY Linear input: ±0.05% of calibrated span ±1 count
Root extraction: ±0.1% F.S. ± 2 counts
ROOT EXTRACTION Square root extraction: Automatic
Programmable exponent: Greater than 1 and smaller than 3
11 POINT Input Range Minimum Span Between Inputs
LINEARIZATION 4-20 mA (1.6 mA ÷ (Number of points -1))
0-5 V (0.16 V ÷ (Number of points -1))
0-10 V (0.32 V ÷ (Number of points -1))
e.g. Minimum span for an 11-point, 4-20 mA calibration is
0.16 mA between inputs.
TIME BASE Second, minute, hour, or day
ALARM POINTS Four, any combination of high or low alarms
ALARM POINT
DEADBAND
0-100% of full scale, user selectable
ALARM STATUS
INDICATION
Front panel LED

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PEAK HOLD
MAX (DISPLAY PEAK)
Captures the maximum or peak process/rate and displays it via
the front panel ENTER button (Dspy p)
PEAK HOLD OR
MAX INDICATION
Front panel flashing “R” LED
LOCKOUT Jumper JP1 labeled “LOCK” restricts modification of
programmed settings.
NON-VOLATILE
MEMORY
All programming values are stored in non-volatile memory for a
minimum of ten years if power is lost.
POWER OPTIONS AC power: 115 or 230 VAC (field select) ±10%, 50/60 Hz, 12 VA
DC power: 22-28 VDC; 12 watts maximum
NORMAL MODE
REJECTION
64 dB at 50/60 Hz
ENCLOSURE Impact-resistant glass filled polycarbonate, NEMA 4X, IP 67
(IEC 529), color: gray (RAL 7035); two holes for ½" conduit
provided at base.
ENVIRONMENTAL Operating temperature range: -20 to 65°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
CONNECTIONS Removable screw terminal blocks, accept 22 to 12 AWG wire
MOUNTING The enclosure contains four holes for wall mounting. Panel
mounting kit is available.
OVERALL
DIMENSIONS
6.7" x 5.5" x 3.7" (170 mm x 140 mm x 95 mm)
WEIGHT 3.8 lbs (1.73 kg)
WARRANTY 2 years parts & labor
Rate/Totalizer/Batch Controller Features
RATE DISPLAY
INDICATION
LED labeled “R” in lower right illuminates when meter is
displaying rate or process input.
LOW-FLOW
CUTOFF
Any input below the low-flow cutoff value will result in a display
of zero. May be set from 1 count to 100% F.S., user
selectable. To disable low-flow cutoff, program cutoff value to
zero. Totalizer is based on rate display. So, inputs below the
low-flow cutoff value will not affect the totalizer.
ALTERNATING
DISPLAY
Display may be programmed to alternate between rate and
total every 10 seconds.
TOTAL DISPLAY 0 to 999,999, automatic lead zero blanking
TOTAL DECIMAL
POINT
May be set in any of the following positions: 9.99999, 99.9999,
999.999, 9999.99, or 99999.9. Total decimal point is
independent of process/rate decimal point.

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TOTAL
CONVERSION
FACTOR
Programmable from 0.00001 to 59999
TOTALIZER Calculates total based on rate and field programmable total
conversion factor to display total in engineering units. Time
base must be selected according to time units in which rate is
displayed.
TOTALIZER
ROLLOVER
Totalizer “rolls over” when display exceeds 999,999. Relay
status reflects display.
TOTALIZER
PRESETS
Up to four, user selectable under setup menu Setup. Any set
point can be assigned to total and may be programmed
anywhere in the range of the meter.
PRESET OFFSET Relays assigned to total can be programmed to trip at any
point below the next relay’s preset value.
PROGRAMMABLE
DELAY ON
RELEASE
If the meter is programmed to reset total to zero automatically
when the highest preset is reached, then a delay will occur
before the total relays reset. This delay can be programmed
anywhere from 1 to 999 seconds.
PRIORITY BATCH
PROGRAMMING
This feature allows the user to quickly change preset values
without going into the main menu by holding the ENTER
button for more than 3 seconds.
TOTAL RESET Via front panel ENTER button, external contact closure, or
automatically via user selectable preset value.
TOTAL RESET
LOCKOUT
Meter may be programmed so total cannot be reset from front
panel.
Options
Relays
RATING 2 or 4 SPDT (Form C); rated 2 A @ 30 VDC or 2 A @
250 VAC resistive load; 1/14 HP @ 125/250 VAC for inductive
loads. Built-in suppression.
ASSIGN TO
PROCESS/RATE
OR TOTAL
Any relay may be assigned to process/rate or total.
BUILT-IN
SUPPRESSION
A built-in suppressor (snubber) to prolong the life of the relays
protects each relay contact. The suppressor provides a degree
of protection against electrical noise caused by inductive
loads. Suppressor value: .01 µF/470 Ω, 250 VAC.
DEADBAND 0-100% of full scale, user selectable
HIGH OR LOW
ALARM
User may program any alarm for a high or low trip point.
RELAY
OPERATION
Latching or non-latching

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FAIL-SAFE
OPERATION
Relay coils are energized in non-alarm condition. In case of
power failure, relays will go to alarm state. Fail-safe operation
may be disabled, by removing jumper J5 located on the
Options Board.
AUTO
INITIALIZATION
When power is applied, relays assigned to total will reflect the
state of the accumulated total value in memory. Relays
assigned to process/rate will reflect the state of the input to the
meter.
RELAYS RESET
Total relays reset 1. When total is reset to zero, if set up for external total reset
2. After delay has elapsed, if set up for internal total reset
3. Manual any time, if set up for external total reset (via user
supplied external contact closure at terminals AK and CM
or front panel ACK button)
Note: Manual reset resets all manually resettable relays.
Process/rate
relays reset
1. Automatic reset only
2. Manual reset only, at any time
3. Automatic plus manual reset at any time
4. Manual reset only after alarm condition has been
corrected
Automatic reset: Relays will automatically reset when the
input passes the reset point.
Manual reset: It can be performed via user supplied external
contact closure at terminals AK and CM or front panel ACK
button. Manual reset resets all manually resettable relays.

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Isolated 4-20 mA Transmitter Output
CALIBRATION
RANGE
The transmitter output can be calibrated so that a 4 mA output
is produced for any process/rate measured by the meter. The
20 mA output may correspond to any process/rate that is at
least 501 counts greater or smaller than the process/rate
corresponding to 4 mA. (Ex. 4 mA = 0, 20 mA = 501) If the
span between 4 and 20 mA is less than 501 counts, an error
message will appear.
EQUIPMENT
NEEDED
The 4-20 mA output from the meter is calibrated without the
use of a calibrator.
OUTPUT LOOP
POWER SUPPLY
24 VDC ± 5% @ 20 mA, regulated. Maximum loop resistance
is 1200 Ω. Isolated from input transmitter power.
ACCURACY ± 0.1% F.S., ± 0.004 mA
ISOLATION 500 VDC or peak AC, input-to-output or input/output-to-power
line
EXTERNAL
LOOP-POWER
SUPPLY
35 VDC maximum
OUTPUT LOOP
RESISTANCE
Power supply Minimum loop
resistance
Maximum loop
resistance
24 VDC 10 Ω600 Ω
35 VDC (external) 600 Ω1000 Ω

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Display Functions and Messages
The meter displays various functions and messages during operation and
programming. The following table shows the various displayed functions and
messages with their description.
Display Parameter Description/Comments
18888L Low voltage Indicates an input voltage below specifications during
power up.
-19999 Underrange Indicates the input signal is below the negative range of
the meter.
2 PtS 2 points Indicates number of calibration points selected (2 to 11
points can be selected).
29999 Overrange Indicates the input signal exceeds the full-scale range of
the meter.
ALtErn Alternate Sets any relay pair for pump alternation control.
CALIb External calibration Calibrates unit using a calibrated signal source.
CutoFF Low-flow cutoff Sets meter to display zero below programmed cutoff
point.
Day Day Sets time base to display rate in units per day.
Delay Delay Sets delay on release from 1 to 999 seconds for internal
total reset.
DIA9 Diagnostic Displays parameter settings one at a time for diagnostic
purposes. Setting can not be changed under this
function.
DspLAy Display Sets menu title scroll, selections are activated with
lockout jumper installed.
Dspy 1 Display 1 Sets display 1 calibration.
Dspy 2 Display 2 Sets display 2 calibration.
DSPy P Display peak Displays the highest process/rate value captured.
DSPy r Display process/rate Sets process/rate as default display.
DSPy t Display total Sets total as default display.
E rSt External total reset Indicates total reset was set to externally reset total to
zero via the ENTER button or an external switch closure.
E-CAL External calibration Sets meter to calibrate using a calibrated signal source.
Error Error Indicates calibration was not successful.
Error1 Error 1 Indicates a combination of parameters that exceeds the
totalizer capabilities.
Hour Hour Sets time base to display rate in units per hour.
I or e Internal or external Sets highest preset for internal or external total reset.
I rSt Internal total reset Indicates highest preset was set to internally reset total to
zero when preset value is reached.
I-CAL Internal calibration Sets meter for internal calibration to scale meter without
applying an input signal.
Inpt 1 Input 1 Sets input 1 calibration point.
Inpt 2 Input 2 Sets input 2 calibration point.
LatCk Latch Sets process/rate set points for Latching or Non-latching
relay operation.

Model PD655 Large Display Process Meter Instruction Manual
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Display Parameter Description/Comments
LInear Linear input Indicates linear input was selected.
min Minute Sets time base to display rate in units per minute.
No PtS Number of points Sets meter for 2 to 11 calibration points.
OFFSET Preset offset Sets preset offset value (Relay n trips at a point below
Relay n+1 preset value).
outPut Output Sets the optional 4-20 mA output values.
Pro9 r Programmable root Sets exponent for special root extraction used for weirs
and flumes.
R or t Rate or total Sets set points for process/rate or total.
Rate Rate Indicates set point was assigned to rate.
Rset P Reset peak Erases peak value from memory and captures a new
peak reading.
RSEt t Reset total Resets the totalizer to zero.
SCALE Scale Scales meter using internal calibration for desired display
(Signal source not required).
SeC Second Sets time base to display rate in units per second.
SEt 1 Set point 1 Sets operation for set point 1.
SEt 2 Set point 2 Sets operation for set point 2.
SEt 3 Set point 3 Sets operation for set point 3.
SEt 4 Set point 4 Sets operation for set point 4.
SetPtS Set points Sets alarm set /reset points and total presets (relays are
optional).
Setup Setup Sets operation of set points for process/rate or total,
latching or non-latching, etc.
SquArE Square root Sets meter for square root extraction.
t bASE Time base Sets meter with correct time unit factor (second, minute,
hour, or day).
Tot CF Totalizer conversion
factor Sets multiplier factor to display total in any engineering
unit.
Tot dp Total decimal point Sets the decimal position for the totalizer.
TotAL Total Indicates set point was assigned to total.
y or n Yes or no Sets selection or de-selection of various functions.

Model PD655 Large Display Process Meter Instruction Manual
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SETUP AND PROGRAMMING
Overview
To set up and program the meter, it is necessary to disassemble the Display
Board. See disassembling instructions in the next pages.
Setting up and programming the meter involves four basic steps:
1. Jumper Configuration (Page 19)
a. Input selection and lockout jumpers
b. Relay acknowledge enable
c. Fail-safe operation of relays
2. Power Selection (Page20)
a. Changing to 230 VAC power if needed. Factory default is 115 VAC.
b. Labeling meter for input power: 115 VAC, 230 VAC, or 24 VDC
3. Connections (Page 21)
a. Power
b. Input signal
c. Enter, acknowledgement, and reset total
d. Relays
e. 4-20 mA output
4. Programming (Page 28)
a. Basic meter
b. Process/rate meter
c. Totalizer
d. Batch controller
e. Relays
f. 4-20 mA output
g. Lockout and display selection
Programmed Parameter Settings
To simplify programming, write down the desired programming values prior to
attempting to program the meter. The Programmed Parameter Settings form
located at the back of this manual provides a convenient method to record the
user settings; it also provides the factory setting for most of the programmable
parameters.

Model PD655 Large Display Process Meter Instruction Manual
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Disassembling the Meter
To perform the steps described above, it is necessary to partially disassemble
the meter. The Main Board may remain attached to enclosure’s base even during
conduit hub installation if proper precautions are taken.
1. Loosen the four screws that hold enclosure’s cover and remove the cover.
2. Remove the four mounting screws holding the Display Board (see Figure 1).
3. Move the Display Board out of the way. The ribbon cable connecting to the
Display Board may be removed during meter installation. Do not remove
standoffs from Main Board. Main Board is secured to enclosure’s base
with four mounting screws.
4. Change voltage selection as required; this is described on page 20. Set
configuration jumpers; connect power and signal wires.
5. Reassemble Display Board prior to applying power.
6. Program meter prior to installing enclosure’s cover.
7. Install lockout jumper to prevent accidental changes to programmed
settings.
8. Install enclosure’s cover matching enclosure’s base and cover tabs.
Reassembling the Meter
After the wiring and jumper selections have been made, reassemble the Display
Board.
1. Place the Display Board on top of the four standoffs. Make sure the ribbon
cable is connected to the connector on the Display Board.
2. Replace the four mounting screws (see Figure 1).
3. Install enclosure’s cover matching enclosure base and cover tabs.
4. Fasten the four screws that hold the enclosure cover in place.
Figure 1. Removing the Display Board

Model PD655 Large Display Process Meter Instruction Manual
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Jumper Configuration
Overview
Before programming the meter, it is necessary to configure three jumper arrays.
The jumper arrays are used for setting type of input signal (4-20 mA, 0-5 V, or
0-10 V); locking out the programmed settings, enable relay acknowledgement
(ACK), and setting relay fail-safe operation.
Jumper Arrays Function and Location
Jumper Array Function Label Location Diagram
Input signal and Lockout JP1 Main Board Figure 3
Relay ACK enable JP5 Display Board Figure 15
Fail-safe J5 Options Board Figure 4
Input Selection and Lockout Jumpers
Jumper JP1 Position Function
No jumper Sets input to 5 V
20 mA Sets input to 20 mA
10V Sets input to 10 V
LOCK Sets a lock on programming functions
Relay Acknowledge Enable
Jumpe
r
JP5 Position
Function
1 Enable relay 1 manual reset
2 Enable relay 2 manual reset
3 Enable relay 3 manual reset
4 Enable relay 4 manual reset
Fail-Safe Operation of Relays
Jumpe
r
J5 Position
Function
On Apply fail-safe function to all relays
Off Disable fail-safe function to all relays

Model PD655 Large Display Process Meter Instruction Manual
20
Power Selection
Overview
Power Selection involves the following:
1. Changing to 230 VAC power if needed. Factory default is 115 VAC.
2. Labeling the meter as to how it will be powered: 115 VAC, 230 VAC, or
24 VDC. Meters powered from 24 VDC are labeled as such at the factory.
Note: Meters ordered to operate from 24 VDC do not require any special setup,
this option is not field selectable.
All AC powered meters are shipped from the factory set for
115 VAC power. Do not apply 230 VAC without first setting up the
meter to accept this voltage.
Disconnect power prior to performing the following procedures.
The meter is field selectable for either 115 VAC or 230 VAC power.
Changing the voltage selection involves the removal of the front
cover and the Display Board, then selecting 115V or 230V on
switch S1 located on the Main Board.
Observe polarity for DC powered meters. Applying voltage with
reverse polarity may damage the meter.
Do not apply an AC voltage to DC powered meters. Applying an
AC voltage to DC powered meters will result in damage to the
meter and endanger personnel.
Changing from 115 to 230 VAC Power
To access the 115/230 VAC switch it is necessary to remove the housing cover
and the Display Board, see Disassembling the Meter, page 18.
Once the Display Board has been removed, switch S1 is visible. It is the large
black component with a red slide switch on the top, located next to the
transformer. For location see Figure 3, page 21.
For 115 VAC operation, the switch shows 115V; for 230 VAC it shows 230V.
Several setup steps are required and connections made while Display Board is
removed, so it should not be reinstalled just yet. However, to avoid electric shock,
install Display Board prior to applying power.
Labeling Meter for 115 VAC, 230 VAC, or 24 VDC
Figure 2. Input Power Label
A label on top of the unit
contains a place for the
user to indicate if the unit is
powered from 115 or 230
VAC. The user should mark
the appropriate box once
the desired power has been
selected on switch S1.
CAUTION
ALL AC POWERED UNITS ARE
SHIPPED FROM THE FACTORY
SET FOR 115 VAC
115 VAC
230 VAC
24 VDC
(SEE INSTRUCTION MANUAL TO CHANGE VOLTAGE SELECTION)