Precision Digital PD2-6363 User guide

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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
• Large Display NEMA 4X, IP65 Wall Mounted Flow Rate/Totalizer
• Dual Pulse, Open Collector, NPN, PNP, TTL, Switch Contact, Sine Wave (Coil), Square Wave Inputs
• Large Dual-Line 6-Digit Display, 1.8" (46 mm) Readable from 100 Feet (30 Meters) Away
• Isolated 5, 10 or 24 VDC Flowmeter Power Supply
• 4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option
• Free PC-Based, On-Board, MeterView Pro USB Programming Software
• SunBright Display Standard Feature; Great for Outdoor Applications
• Rate, Total, and Grand Total for Each Input Channel
• Gate Function for Display of Slow Pulse Rates
• K-Factor, Internal Scaling, or External Calibration
• Operating Temperature Range: -40 to 65°C (-40 to 149°F)
• Conformal Coated PCBs for Dust and Humidity Protection
• UL & C-UL Listed. E160849; 508 Industrial Control Equipment
• Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC
• Programmable Display, Function Keys & Digital Input
• On-Board USB & RS-485 Serial Communications
• Modbus RTU Communication Protocol Standard
• 5 Digital Inputs & 4 Digital Outputs Standard
• Password Protection
• Light / Horn & Button Accessory
• Control Station Accessory for Remote Operation
• 3-Year Warranty
MeterView Pro
USB Install
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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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. See Warranty Information and Terms & Conditions on www.predig.com for complete details.
• Read complete instructions prior to installation and operation of the meter.
• Risk of electric shock or personal injury.
• This product is not recommended for life support
applications or applications where malfunctioning could result in personal injury or property loss. Anyone using this product for such applications does so at his/her own risk. Precision Digital Corporation shall not be held liable for damages resulting from such improper use.
WARNING
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Limited Warranty
Precision Digital Corporation warrants this product against defects in material or workmanship for the specified period under
“Specifications” from the date of shipment from the factory. Precision Digital’s liability under this
limited warranty shall not exceed the purchase value, repair, or replacement of the defective unit. See Warranty Information and Terms & Conditions on www.predig.com for complete details.
Registered Trademarks
All trademarks mentioned in this document are the property of their respective owners.
© 2021 Precision Digital Corporation. All rights reserved.
FREE MeterView Pro Programming Software
The meter can be powered from the USB connection. When using the USB connection, DO NOT apply AC or DC power to the meter.
The easiest and quickest way to program your Helios meter is to use the FREE MeterView Pro programming software. This software is loaded into the meter and connects and installs directly to your PC with a USB cable. We recommend that the first thing you do after taking the meter out of the box is connect the Helios to your PC with the provided USB cable – do not use a different cable. DO NOT apply AC or DC power to the meter while your PC is connected to the meter as it will disrupt the USB
connection. You don’t even have to apply an input
signal. MeterView Pro programming software is intuitive, and
most customers can get their meter programmed as they like without even looking in the manual.
Watch MeterView Pro Software Video at
www.predig.com/meterviewpro
In addition to programming, the software may be used for:
• Monitoring
• Datalogging using your PC
• Generating and saving programming files for
later use
Once your meter is programmed the way you want it, you can wire it up for your application per the instructions in this manual and install it. If you find that you need to make adjustments to the programming after the meter is installed, you can use the front panel buttons and the instructions in this manual to do so.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Table of Contents
Introduction .......................................................................................................... 6
Ordering Information ........................................................................................... 6
Specifications....................................................................................................... 8
General ............................................................................................................. 8
Dual Pulse Inputs ............................................................................................ 9
Dual Rate/Totalizer ........................................................................................ 10
Relays ............................................................................................................. 10
USB Connection ............................................................................................ 10
Isolated 4-20 mA Transmitter Output .......................................................... 11
RS-485 Serial Communications ................................................................... 11
Modbus® RTU Serial Communications ........................................................ 11
Digital Input (F4) ............................................................................................ 11
Digital Inputs & Outputs ............................................................................... 11
MeterView Pro Software ................................................................................ 11
Compliance Information .................................................................................... 12
Safety .............................................................................................................. 12
Safety Information ............................................................................................. 12
Installation .......................................................................................................... 12
Unpacking ...................................................................................................... 12
Wall Mounting Instructions .......................................................................... 13
Mounting Dimensions .................................................................................. 13
Conduit Holes Location ............................................................................... 13
Pipe Mounting Instructions .......................................................................... 14
Installation Overview ..................................................................................... 15
MeterView Pro Software ................................................................................ 15
MeterView Pro Installation........................................................................... 15
Flowmeter Supply Voltage Selection (P+, P-) ................................................. 16
Connections ................................................................................................... 17
Connectors Labeling ................................................................................... 17
Power Connections ..................................................................................... 18
Signal Connections ..................................................................................... 18
Configure Input Type and Level Switches ................................................... 19
Relay Connections ...................................................................................... 19
Switching Inductive Loads ........................................................................... 19
RS-485 Connections ................................................................................... 20
RS-485 Multi-Drop Connection ................................................................... 20
RS-485 Serial Converters ........................................................................... 20
Digital I/O Connections................................................................................ 21
F4 Digital Input Connections ....................................................................... 21
4-20 mA Output Connections ...................................................................... 21
Analog Output Transmitter Power Supply ................................................... 22
Remote Operation of Meter ......................................................................... 22
Interlock Relay Feature ............................................................................... 22
Setup and Programming ................................................................................... 23
Overview ......................................................................................................... 23
LED Status Indicators ................................................................................... 23
Programming Buttons ................................................................................... 24
Display Functions & Messages .................................................................... 25
Main Menu ...................................................................................................... 28
Setting Numeric Values ................................................................................ 28
Setting Up the Meter (setup) ........................................................................ 29
Setting the Input Signal (Input) .................................................................. 30
Setting the Totalizer Features (total) ........................................................ 30
Setting the Dual-Input Mode (nmode) .......................................................... 30
Setting the Rate, Total, & Grand Total Units/Tags (units)......................... 32
Setting the Decimal Point (dEc pt)............................................................. 32
Programming the Rate/Totalizer (prog) ...................................................... 33
Setting the Display Parameters & Intensity (dsplay).................................. 36
Display Intensity (d-Inty) ........................................................................... 36
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Setting the Relay Operation (relay) ............................................................ 37
Setting the Relay Assignment (asSign) ...................................................... 37
Setting the Relay Action (Act)..................................................................... 37
Programming Set and Reset Points ............................................................ 38
Setting Fail-Safe Operation ......................................................................... 38
Programming Time Delay............................................................................ 38
Relay and Alarm Operation Diagrams ......................................................... 39
High Alarm Operation (Set > Reset)................................................................ 39
Low Alarm Operation (Set < Reset) ............................................................ 39
High Alarm with Fail-Safe Operation (Set > Reset) ..................................... 39
Low Alarm with Fail-Safe Operation (Set < Reset) ..................................... 39
Time Delay Operation ................................................................................. 40
Total Relay Sampling Operation ................................................................. 40
Pump Alternation Control Operation ........................................................... 41
Relay Operation Details ................................................................................ 42
Overview ..................................................................................................... 42
Relays Auto Initialization ............................................................................. 42
Fail-Safe Operation ..................................................................................... 42
Front Panel LEDs ........................................................................................ 42
Latching and Non-Latching Relay Operation .............................................. 42
Non-Latching Relay (Auto) ......................................................................... 43
Non-Latching Relay with Manual Reset (A-nman) ....................................... 43
Latching Relay (LatcH) ............................................................................... 43
Latching Relay with Clear (Lt-Clr) ............................................................ 43
Acknowledging Relays ................................................................................ 44
Setting Up the Interlock Relay (Force On) Feature ..................................... 44
Scaling the 4-20 mA Analog Output (Aout) ................................................. 45
Reset Menu (reset) ....................................................................................... 45
Manual Control Menu (Contrl) ..................................................................... 45
Setting Up the Password (pass) ................................................................... 46
Protecting or Locking the Meter Functions .................................................. 46
Total Reset Password & Non-Resettable Total ........................................... 46
Making Changes to a Password Protected Meter ....................................... 46
Disabling Password Protection.................................................................... 46
Advanced Features Menu ............................................................................. 47
Advanced Features Menu & Display Messages.......................................... 47
Gate Function (Gate) .................................................................................. 48
Contact De-Bounce Filter (FiLter)............................................................. 49
Rounding Feature (round) .......................................................................... 49
Modbus RTU Serial Communications (serial) .......................................... 49
Select Menu (SElect) ................................................................................. 50
Input Signal Conditioning (Functn) ............................................................. 50
Math Function (nmath) ................................................................................ 51
Math Constants (Const) .............................................................................. 51
Low-Flow Cutoff (CutofF) ........................................................................... 51
Totalizer Count Up/Down (Count) ............................................................... 52
Analog Output Programming (AoutPr) ....................................................... 52
Programmable Function Keys User Menu (user) ....................................... 53
Meter Operation ................................................................................................. 55
Button Operation ........................................................................................... 55
Function Keys Operation .............................................................................. 55
Digital Inputs Operation ................................................................................ 55
Maximum/Minimum Readings ...................................................................... 55
Troubleshooting................................................................................................. 56
Diagnostics Menu (diag) .............................................................................. 56
Testing the Display LEDs ............................................................................ 56
Determining Software Version..................................................................... 56
Reset Meter to Factory Defaults ................................................................... 56
Factory Defaults & User Settings ................................................................ 57
Troubleshooting Tips .................................................................................... 59
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Table of Figures
Figure 1. Meter Mounting Holes Location ....................................................... 13
Figure 2. Meter Mounting Holes Dimensions .................................................. 13
Figure 3. Meter Dimensions – Side View ......................................................... 13
Figure 4. Meter Dimensions - Front View ........................................................ 13
Figure 5. Conduit Holes Location – Bottom View ........................................... 13
Figure 6. Vertical Pipe Mount Assembly.......................................................... 14
Figure 7. Horizontal Pipe Mount Assembly ..................................................... 14
Figure 8. Flowmeter Supply Voltage Selection ............................................... 16
Figure 9. PD2-6363-6H0 / 7H0 Connectors Label ............................................ 17
Figure 10. PD2-6363-6H7 / 7H7 Connectors Label .......................................... 17
Figure 11. Power Connections ......................................................................... 18
Figure 12. Flowmeters Powered by Internal Power Supply ........................... 18
Figure 13. Flowmeters Powered by External Supply...................................... 18
Figure 14. Self-Powered Magnetic Pickup Coil Flowmeter ............................ 18
Figure 15. NPN open Collector Input ............................................................... 18
Figure 16. PNP Sensor Powered by Internal Supply ...................................... 18
Figure 17. Switch Input Connections ............................................................... 18
Figure 18. Relay Connections........................................................................... 19
Figure 19. AC and DC Loads Protection .......................................................... 19
Figure 20. Low Voltage DC Loads Protection ................................................. 19
Figure 21. RS-485 Connection .......................................................................... 20
Figure 22. Five-Wire RS-485 Connections ....................................................... 20
Figure 23. Three-Wire RS-485 Multi-Drop Connections ................................. 20
Figure 24. Connections for RS-485 Connector to Serial Converter .............. 21
Figure 25. Three-Wire RS-485 Connection ...................................................... 21
Figure 26. Digital Input and Output Connections ........................................... 21
Figure 27. F4 Digital Input Connections .......................................................... 21
Figure 28. 4-20 mA Output Connections ......................................................... 21
Figure 29. Analog Output Supply Powering Other Devices........................... 22
Figure 30. Meter to PDA2364-MRUE Control Station Connection ................. 22
Figure 31. Interlock Connections ..................................................................... 22
Figure 32. Dual Input Mode (ud AB).................................................................. 30
Figure 33. Dual Input Mode (ud AI).................................................................. 30
Figure 34. Dual Input Mode (ud BI).................................................................. 31
Figure 35. Dual Input Mode (quad 1)................................................................ 31
Figure 36. Dual Input Mode (quad 2)................................................................ 31
Figure 37. Dual Input Mode (quad 4)................................................................ 31
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Introduction

The Helios PD2-6363 is a multi-purpose, easy to use, large-display dual pulse input rate/totalizer ideal for flow rate, total, and flow control applications. It features
large 1.8 inch superluminous LED digits, which can be read in direct sunlight from up to 100 feet (30 meters) away. It is housed in a water-resistant, field-mountable NEMA 4X/IP65 rated enclosure for convenient indoor and outdoor
installation.
The programming buttons are located behind the lower panel door and are not generally accessible during operation. For that reason, we recommend the use of the PDA2364-MRUE remote control station which has four buttons to mimic the buttons behind the panel.
The meter accepts two pulse (e.g. ±40 mV to ±8 V), square wave (0-5 V, 0-12 V, or 0-24 V), open collector, NPN, PNP, TTL or switch contact signals from a pulse output flowmeter. The rates, as measured by the flowmeters, are automatically aggregated into cumulative totals and grand totals which can be displayed with the rates.
Various math functions may be applied to the rate, total, or grand totals of the two channels, including addition, difference, absolute difference, average, weighted average, multiplication, division, minimum, maximum, draw, ratio, and concentration. This is in addition to the input signal conditioning functions (linear, square root, programmable exponent, or round horizontal tank calculations).
The displays, relays, and the analog output may be assigned to the rate, total, or grand total of input channels A or B, or math result channel C. Three of the programming buttons can be set for custom operation.
A fully loaded Helios PD2-6363 rate/totalizer comes with four SPDT relays, a 4-20 mA output, two 24 VDC power supplies, five digital inputs and four digital outputs, and RS-485 serial communications. The four relays can be used for alarm indication or process control applications. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O features make the Helios an excellent addition to any system.

Ordering Information

85-265 VAC Models
Model
Standard Features
Options Installed
PD2-6363-6H0
5 Digital Inputs, 4 Digital Outputs, RS-485 Communications
No options
PD2-6363-6H7
4 relays 4-20 mA output
12-24 VDC Models
Model
Standard Features
Options Installed
PD2-6363-7H0
5 Digital Inputs, 4 Digital Outputs, RS-485 Communications
No options
PD2-6363-7H7
4 relays 4-20 mA output
Accessories
Model
Description
PDA0004
Cable Gland
PDA7485-I
RS-232 to RS-485 isolated converter
PDA8485-I
USB to RS-485 isolated converter
PDAPLUG2
Plastic Conduit Plug
PDX6901
Snubber: 0.01 μF/470 Ω, 250 VAC
PDA2360 Control Stations
Model
Description
PDA2360-E
Emergency button
PDA2361-A
Ack button
PDA2361-B
Blank button
PDA2361-R
Reset button
PDA2361-T
Tare button
PDA2361-S
Stop button
PDA2361-Q
Silence button
PDA2362-AR
Ack and Reset buttons
PDA2362-BB
Two blank buttons
PDA2364-MRUE
Menu, right, up, enter buttons
Note: Control stations can be connected directly to the Helios meter’s on-board digital inputs. See Remote Operation of Meter on page 22 for details.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Light / Horn Accessories
Helios Meter Shown with MOD-PD2LHRB1 Red Light / Horn and Button. Meter Sold Separately.
Model
Description
MOD-PD2LHRB1
Red Light / Horn and Button Mounted and Wired to Helios
(1)
MOD-PD2LHGB1
Green Light / Horn and Button Mounted and Wired to Helios
(1)
MOD-PD2LHYB1
Yellow Light / Horn and Button Mounted and Wired to Helios
(1)
MOD-PD2LHBB1
Blue Light / Horn and Button Mounted and Wired to Helios
(1)
MOD-PD2LHWB1
White Light / Horn and Button Mounted and Wired to Helios
(1)
MOD-PD2LH5CB1
Light / Horn with User Choice of Red, Green, Yellow, Blue or White Light, Button, Mounted and Wired to Helios
(1)
MOD­PD2LH3CB1-RYG
Light / Horn with Red, Yellow, Green Light Layers, Button, Mounted and Wired to Helios
(1)
Note:
1. Specify MOD-PD2LH model as a separate item on the order for the Helios to order the Light / Horn & Button accessory installed and wired. Meter is sold separately.
9 labels are provided for the button.
Pipe Mounting Kit
Helios Meter Shown mounted to pipe using PDA6260 pipe mounting kit. See Pipe Mounting Instructions on page 14 for details.
Model
Description
PDA6260
2" Pipe Mounting Kit for PD2
Signal Splitter & Conditioner Accessories
Model
Description
PD659-1MA-1MA
Signal Isolator with One 4-20 mA Input and One 4-20 mA Output
PD659-1MA-2MA
Signal Splitter with One 4-20 mA Input and Two 4-20 mA Outputs
PD659-1MA-1V
Signal Conditioner with One 4-20 mA Input and One 0-10 VDC Output
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Specifications

Except where noted all specifications apply to operation at +25°C.

General

Display
Dual-line: 1.8" (46 mm) high, red LEDs 6 digits per line (-99999 to 999999), with
lead zero blanking
Display Intensity
Eight user selectable intensity levels Default value is six.
Display Update Rate
Rate: 10 per second; up to 1 per 100 seconds (and is a function of Low Gate setting); Total: 10 per second (fixed)
LED Status Indicators
See LED Status Indicators on page 23 for details.
Overrange
Display flashes 999999
Display Assignment
Display lines 1 & 2 may be assigned to show:
• One or more rate channels: Channel A (Ch-A), B (Ch-B), or C (Ch-C)
• Toggle between rate channels: Ch-A & Ch-B, Ch-A & Ch-C, Ch-B & Ch-C, and Ch-A, Ch-B, & Ch-C
• Total or grand total: Ch-A or Ch-B
• Rate and total or grand total: Ch-A, Ch-B
• Relay set points
• Max/min values: Ch-A, Ch-B, or Ch-C
• Toggle between any rate channel & units
• Total and units: Ch-A or Ch-B
• Toggle between totals: Ch-A & Ch-B;
Ch-A, Ch-B, and sum of Ch-A and Ch-B
• Modbus input
Line 2 may also be set to show engineering units or be off, with no display.
Programming Methods
Four programming buttons, digital inputs, PC and MeterView Pro software, or Modbus registers.
Recalibration
All ranges are calibrated at the factory. Recalibration is recommended at least every 12 months.
Max/Min Display
Max/min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
Rounding
Select 1, 2, 5, 10, 20, 50, or 100 (e.g. rounding = 10, value = 123.45,
display = 123.50).
Password
Three programmable passwords restrict modification of programmed settings and two prevent resetting the totals.
Pass 1: Allows use of function keys and digital inputs Pass 2: Allows use of function keys, digital inputs and editing set/reset points Pass 3: Restricts all programming, function keys, and digital inputs. Total: Prevents resetting the total manually Gtotal: Prevents resetting the grand total manually
Non-Volatile Memory
All programmed settings are stored in non­volatile memory for a minimum of ten years if power is lost.
Power Options
85-265 VAC 50/60 Hz; 90-265 VDC, 20 W max; 12-24 VDC, 12-24 VAC, 15 W max. Powered over USB for configuration only.
Fuse
Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse
Isolation
4 kV input/output-to-power line 500 V input-to-output or output-to-P+ supply
Overvoltage Category
Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage
Category III.
Environmental
Operating temperature range:
-40 to 65°C
Storage temperature range:
-40 to 85°C
Relative humidity:
0 to 90% non-condensing
Note: Printed circuit boards are conformally coated.
Connections
Power, signal, relays, mA out: Removable screw terminal blocks accept 12 to 22 AWG wire.
RS-485: Removable screw terminal block accepts 16 to 30 AWG wire.
Digital I/O: Non-removable screw terminal blocks accept 16 to 30 AWG wire.
Enclosure
UL Type 4X, IP65 rated. Polycarbonate & glass blended plastic case, color: gray. Includes four PG11 through-hole conduit openings, with two factory installed PG11, IP68, black nylon threaded hole plugs with backing nuts.
Mounting
Wall Mounting: Four (4) mounting holes provided for mounting meter to wall. See Wall Mounting Instructions on page 13 for additional details.
Pipe Mounting: Optional pipe mounting kit (PDA6260) allows for pipe mounting. Sold separately. See Pipe Mounting Instructions on page 14 for additional details.
Tightening Torque
Power, signal, relays, mA out terminals: 5 lb-in (0.56 Nm)
Digital I/O and RS-485:
2.2 lb-in (0.25 Nm)
Overall Dimensions
10.63" x 12.59" x 4.77" (270 mm x 319.7 mm x 121.2 mm) (W x H x D)
Weight
6.10 lbs (2.76 kg)
Warranty
3 years parts & labor. See Warranty Information and Terms & Conditions on
www.predig.com for complete details.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Dual Pulse Inputs

Two Inputs
Field selectable: Pulse or square wave 0-5 V, 0-12 V, or 0-24 V @ 30 kHz; TTL; open collector 4.7 k pull-up to 5 V @ 30 kHz; NPN or PNP transistor, switch contact 4.7 k pull-up to 5 V @ 40 Hz; Modbus PV (Slave)
Isolated Flowmeter Power Supply
Terminals P+ & P-: 24 VDC 10%. All models selectable for 24, 10, or 5 VDC
supply (Switch labeled P+/P-). 85-265 VAC models rated @ 200 mA max, 12-24 VDC powered models rated @ 100 mA max. 5 & 10 VDC supply rated @ 50 mA max. Refer to Flowmeter Supply Voltage Selection (P+, P-) on page 16.
When the Light / Horn is powered by the flowmeter power supply, see MOD-PD2LH Light / Horn's transmitter power supply specification in MOD-PD2LH manual for additional details. Light / Horn power not available for 5 or 10 VDC supplies.
Channels
Channel A, Channel B, Channel C (Math channel)
Programmable Constants
Constant P (Adder):
-99.999 to 999.999, default: 0.000
Constant F (Factor):
0.001 to 999.999, default: 1.000
Math Functions
Name
Function
Setting
Addition
(A+B+P)*F
Sunm
Difference
(A-B+P)*F
diF
Absolute diff.
((Abs(A-B))+P)*F
diFAbS
Average
(((A+B)/2)+P)*F
AVG
Multiplication
((A*B)+P)*F
nmulti
Division
((A/B)+P)*F
diVide
Max of A or B
((AB-Hi)+P)*F
Hi-Ab
Min of A or B
((AB-Lo)+P)*F
Lo-Ab
Draw
((A/B)-1)*F
drAuw
Weighted avg.
((B-A)*F)+A
uw avg
Ratio
(A/B)*F
ratio
Ratio 2
((B-A)/A)+P)*F
ratio2
Concentration
(A/(A+B))*F
Concen
Total Addition
(tA+tB+P)*F
Sunm t
G. Tot. Addition
(GtA+GtB+P)*F
SunmGT
Total Difference
(tA-tB+P)*F
Dif GT
G. Tot. Difference
(GtA-GtB+P)*F
Dif GT Total Ratio
(tA/tB)*F
Tratio
Total Ratio 2
((tB-tA)/tA)*F
t-rat2
Total Percent
(tA/(tA+tB))*100
T PCT
Note: The F constant can be any value from
0.001 to 999.999. If the value is less than 1, it will have the same effect as a divider. For example, the average could also be derived by using (A+B)*F, where F = 0.500.
Low Voltage Mag Pickup
Sensitivity: 40 mVp-p to 8Vp-p
Minimum Input Frequency
0.001 Hz Minimum frequency is dependent on high gate setting.
Maximum Input Frequency
30,000 Hz (10,000 for low voltage mag pickup)
Input Impedance
Pulse input: Greater than 300 k @ 1 kHz. Open collector/switch input: 4.7 k pull-up to 5 V.
Input Threshold
Low
High
1.6 V
3.3 V
Sequence of Operations for Input Programming
1. Select Input for A and B
2. Set up the rate, total, and grand total engineering units for channels A & B, and units for math channel C
3. Set up rate, total, and grand total decimal points for channels A & B, and decimal point for math channel C
4. Program channel A & B rate parameters
5. Program channel A & B total and reset parameters
6. Set up display lines 1 & 2 and display intensity
7. Select the transfer function for A & B (e.g. Linear)
8. Select Math function for Channel C
9. Program constants for Factor (F) and Adder (P).
10. Program cutoff values for A and B
Accuracy
±0.03% of calibrated span ±1 count
Temperature Drift
Rate display is not affected by changes in temperature.
Multi-Point Linearization
2 to 32 points for channel A and B
Low-Flow Cutoff
0.1 to 999,999 (0 disables cutoff function).
Point below at which the display always shows zero.
Decimal Point
Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd
Calibration
May be calibrated using K-factor, scaling without a signal source, or by applying an external calibration signal.
K-Factor
Field programmable K-factor converts input pulses to rate in engineering units. May be programmed from 0.00001 to 999,999 pulses/unit.
Calibration Range
Input 1 signal may be set anywhere in the range of the meter; input 2 signal may be set anywhere above or below input 1 setting.
Minimum input span between any two inputs is 1.0 Hz for calibration and 0.1 Hz for scaling. An error message will appear if the input span is too small.
Filter
Programmable contact de-bounce filter: 40 to 999 Hz maximum input frequency allowed with low speed filter.
Time Base
Second, minute, hour, or day
Gate
Low gate: 0.1-99.9 seconds High gate: 2.0-999.9 seconds
3.3 V
1.6 V
0 V
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Dual Rate/Totalizer

Rate Display Indication
-99999 to 999999, lead zero blanking.
Total Display & Total Overflow
0 to 999,999; automatic lead zero blanking. Up to 999,999,999 with total-overflow
feature. “oF” is displayed to the left of total overflow and ▲ LED is illuminated.
Total Decimal Points
Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd Total decimal point is independent of rate decimal point. Channel A and B decimal points programmed independently.
Dual Totalizer
Calculates total for channels A and B based on rate and field programmable multiplier to display total in engineering units. Time base must be selected according to the time units in which the rate is displayed. Channel A and B totalizer parameters programmed independently.
Totalizer Rollover
Totalizer rolls over when display exceeds 999,999,999. Relay status reflects display.
Total Overflow
Override
Program total A or B total reset for automatic with 0.1 second delay and set point 1 for 999,999
Totalizer Alarm Presets
Up to eight, user selectable under setup menu. Any set point can be assigned to channel A or B total or grand total (or C) and may be programmed anywhere in the range of the meter for total alarm indication.
Total & Grand Total Reset
Via front panel button, external contact closure on digital inputs, automatically via user selectable preset value and time delay, or through serial communications. Channel A and B total and grand total reset parameters programmed independently.
Total Reset Password
Total and grand total passwords may be entered to prevent resetting the totals or grand totals from the front panel.
Programmable Delay On Release
0.1 and 999.9 seconds; applied to the
first relay assigned to total or grand total. If the meter is programmed to reset total
to zero automatically when the preset is reached, then a delay will occur before the total is reset.
Non-Resettable Total
The grand totals can be programmed as non-resettable totals by entering the password “050873”. Both channels are set to non-resettable when this password is entered.
• Once the Grand Total has been programmed as “non­resettable” the feature CANNOT be disabled.

Relays

Rating
4 SPDT (Form C) internal and rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @ 125/250 VAC for inductive loads
Noise Suppression
Noise suppression is recommended for each relay contact switching inductive loads; see Switching Inductive Loads on page 19.
Relay Assignment
Relays may be assigned to channel A or B rate, total, or grand total; channel C; or Modbus control.
Deadband
0-100% of span, user programmable
High or Low Alarm
User may program any alarm for high or low trip point. Unused alarm LEDs and relays may be disabled (turn off).
Relay Operation
• Automatic (non-latching) and/or manual
reset
• Latching (requires manual acknowledge) with or without clear
• Pump alternation control (2-4 relays)
• Sampling (based on set point and time)
• Off (disable unused relays and enable
Interlock feature)
• Manual on/off control mode
Relay Reset (Acknowledge)
User selectable via front panel button, F4 digital input, external contact closure on digital inputs, or through serial communications.
1. Automatic reset only (non-latching), when the input passes the reset point.
2. Automatic + manual reset at any time (non-latching)
3. Manual reset only, at any time (latching)
4. Manual reset only after alarm condition has cleared (L)
Note: Front panel button, F4 terminal at back of meter or digital input may be assigned to acknowledge relays programmed for manual reset.
Time Delay
0 to 999.9 seconds, on & off relay time delays. Programmable and independent for each relay
Fail-Safe Operation
Programmable and independent for each relay.
Note: Relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state.
Auto Initialization
When power is applied to the meter, relays will reflect the state of the input to the meter.

USB Connection

Function
Programming only
Compatibility
USB 2.0 Standard, Compliant
Connector Type
Type B receptacle
Cable
USB Type A-B cable
Driver
Microsoft® Windows® XP/Vista/7/8/10
Power
USB port provides power to the meter.
DO NOT apply AC or DC power to the meter while the USB port is in use.
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Isolated 4-20 mA Transmitter Output

Output Source
Input channels A or B, rate, total, or grand total; channel C; max or min for channel A or B; highest or lowest max or min of A and B; set points 1-4; Modbus input; or manual control mode
Scaling Range
1.000 to 23.000 mA for any display range
Calibration
Factory calibrated:
4.000 to 20.000 = 4-20 mA output
Analog Out Programming
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break
Accuracy
± 0.1% of span ± 0.004 mA
Temperature Drift
0.4 µA/C max from 0 to 65C ambient,
0.8 µA/C max from -40 to 0C ambient
Note: Analog output drift is separate from input drift.
Isolated Transmitter Power Supply
Terminals I+ & R: 24 VDC  10%. May be used to power the 4-20 mA output or other devices.
All models rated @ 40 mA max.
External Loop Power Supply
35 VDC maximum
Output Loop Resistance
Power supply
Minimum
Maximum
24 VDC
10
700
35 VDC (external)
100
1200
0-10 VDC Output
The PD659-1MA-1V can convert the optional 4-20 mA output to a 0-10 VDC output

RS-485 Serial Communications

Compatibility
EIA-485
Connectors
Removable screw terminal connector
Max Distance
3,937' (1,200 m) max
Status Indication
Separate LEDs for Power (P), Transmit (TX), and Receive (RX)

Modbus® RTU Serial Communications

Slave Id
1 – 247 (Meter address)
Baud Rate
300 – 19,200 bps
Transmit Time Delay
Programmable between 0 and 199 ms
Data
8 bit (1 start bit, 1 or 2 stop bits)
Parity
Even, Odd, or None with 1 or 2 stop bits
Byte-To-Byte Timeout
0.01 – 2.54 second
Turn Around Delay
Less than 2 ms (fixed)
Note: Refer to the Helios Modbus Register Tables located at www.predig.com for details.

Digital Input (F4)

Function
Remote operation of front-panel buttons, acknowledge/reset relays, reset totals, reset max/min values. See Function Keys & Digital I/O Available Settings on page 53 for a complete list of capabilities.
Contacts
3.3 VDC on contact. Connect normally
open contacts across F4 to COM
Logic Levels
Logic High: 3 to 5 VDC Logic Low: 0 to 1.25 VDC

Digital Inputs & Outputs

Function
Terminals provided for remote operation of all four programming / operation buttons (use PDA2364-MRUE control station). Other uses include acknowledge/reset relays and reset max/min values. See
Function Keys & Digital I/O Available Settings on page 53 for a complete list of
capabilities.
Channels
4 digital inputs & 4 digital outputs
Digital Input Logic High
3 to 5 VDC
Digital Input Logic Low
0 to 1.25 VDC
Digital Output Logic High
3.1 to 3.3 VDC
Digital Output Logic Low
0 to 0.4 VDC
Source Current
10 mA maximum output current
Sink Current
1.5 mA minimum input current
+5 V Terminal
To be used as pull-up for digital inputs only. Connect normally open push buttons across +5 V & DI 1-4.
• DO NOT use +5 V terminal to power external devices.

MeterView Pro Software

Availability
Download directly from meter or from
www.predig.com/download_software
System Requirements
Microsoft® Windows® XP/Vista/7/8/10
Communications
USB 2.0 (for programming only) (Standard USB A to USB Type B)
RS-485 to USB converter (programming, monitoring, and data logging)
Configuration
Configure meters one at a time
Power
USB port provides power to the meter.
DO NOT apply AC or DC power to the meter while the USB port is in use.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Compliance Information

Safety

UL & C-UL Listed
USA & Canada UL 508 Industrial Control Equipment (USA)
C22.2 No. 142 (Canadian National Standard)
UL File Number
E160849
Enclosure
UL Type 4X, NEMA 4X, IP65
Low Voltage Directive
EN 61010 Safety requirements for measurement, control, and laboratory use

Safety Information

• Read complete instructions prior to installation and operation of the meter.
• Risk of electric shock or personal injury.
• Hazardous voltages exist within enclosure.
Installation and service should be performed only by trained service personnel.

Installation

There is no need to open the clear plastic front cover in order to complete the installation, wiring, and setup of the meter. All programming is done using MeterView Pro software or through the buttons and switches located under the lower door panel and are accessible by removing the single securing screw. Wires should be run through the knockout holes located on the bottom of the meter, see Figure 5. Conduit Holes Location – Bottom View on page 13 for details.
There are a total of four pre-drilled conduit entry holes located at the bottom of the meter. If the need to drill additional holes arises, make sure you will have the clearance necessary for conduit mounting hardware.
Do not disconnect the RJ45 connector found on the right side of the meter wiring board. Doing so will disable the on-board digital I/O, RS-485 serial communications, and M-Link functionality.
Instructions are provided for changing the flowmeter power supply to output 5 or 10 VDC instead of 24 VDC. See Figure 8. Flowmeter Supply Voltage Selection on page 16.

Unpacking

Remove the meter from box. Inspect the packaging and contents for damage. Report damages, if any, to the carrier.
If any part is missing or the meter malfunctions, please contact your supplier or the factory for assistance.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Wall Mounting Instructions

The meter can be mounted to any wall using the four provided mounting holes. Note that the bottom mounting holes are located underneath the lower door panel. To mount the meter to a wall, follow these instructions
• Prepare a section of wall approximately 11" x 13" (280 mm x 330 mm) for meter mounting by marking with a pencil the mounting holes (shown in Figure 1) on the wall.
• Select the appropriate mounting screws for the mounting surface to be used. The mounting holes diameter is shown on Figure 2.
Note: Mounting screws are not included.
• Using a drill bit slightly smaller than the girth of the mounting screws, pre-drill holes at the mounting locations previously marked.
• Insert mounting screws into the four mounting holes and screw them into the pre-drilled holes. DO NOT overtighten the mounting screws as it is possible that the enclosure could crack and become damaged.
Figure 1. Meter Mounting Holes Location
Figure 2. Meter Mounting Holes Dimensions

Mounting Dimensions

Figure 3. Meter Dimensions – Side View
Figure 4. Meter Dimensions - Front View

Conduit Holes Location

Figure 5. Conduit Holes Location – Bottom View
Mounting Hole
Mounting Hole
Mounting Hole
Mounting Hole
Lower Door Panel
10.43" (265 mm)
9.8" (249 mm)
11.14" (283 mm)
Dia. 0.2" (5.5 mm)
Dia. 0.2" (5.5 mm)
2.63" (67 mm)
4.77"
(121.2 mm)
10.63" (270 mm)
12.59" (319.7 mm)
Mounting HoleMounting Hole
Lower Door Panel
Plugged
Holes
Unplugged
Holes
1.1"
(27.9 mm)
1.99"
(50.5 mm)
0.9"
(23 mm)
Ø0.74" (18.9 mm)
Drill or Punch-Out Holes
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Pipe Mounting Instructions

The meter can also be mounted to a pipe using the optional pipe mounting kit (PDA6260). This kit includes two mounting plates, two U-bolts, and the necessary nuts and bolts. To mount the meter to a pipe using the pipe mounting kit accessory, follow these instructions.
• Secure the mounting plates to the top and bottom (for vertical pipes) or left and right (for horizontal pipes) of the reverse side of the meter enclosure using the provided fasteners. DO NOT overtighten the fasteners as it could cause damage to the enclosure.
• Using the provided nuts and U-bolts, secure the mounting plates to the pipe applying enough torque such that the meter cannot be moved up or down (or side to side).
Figure 6. Vertical Pipe Mount Assembly
Figure 7. Horizontal Pipe Mount Assembly
Mounting Plate
U-Bolt
Pipe
U-Bolt
Back of Meter
Mounting Plate
Mounting
Plate
Mounting
Plate
Pipe
Back of
Meter
U-BoltU-Bolt
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Installation Overview

We recommend the following sequence for getting the meter into service:
1. DO NOT apply AC or DC power to the meter.
2. Connect the meter to the PC with the USB cable provided. DO NOT use a different USB cable.
3. If MeterView Pro (MVPro) is already installed in your computer, then the program will launch automatically in most systems. If the program does not start automatically, double-click on the MVPro icon.
4. If MVPro is not installed, follow the instructions provided below.
5. Use MVPro to configure the meter for your application.
6. Disconnect the USB cable from the meter.
7. Apply power and signal and check operation of the meter.
8. Install the meter and put into service.
9. Make any programming adjustments using the front panel buttons.

MeterView Pro Software

The easiest and quickest way to program your Helios meter is to use the FREE MeterView Pro programming software. This software is loaded into the meter and connects and installs directly to your PC with the USB cable provided. DO NOT use a different USB cable. We recommend that the first thing you do after taking the meter out of the box is connect the Helios to your PC with the provided USB cable. DO NOT apply AC or DC power to the meter while your PC is connected to the meter as it will disrupt the USB connection. It is not necessary to apply an input signal.
MeterView Pro programming software is intuitive, and most customers can get their meter programmed as they like without even looking in the manual.
Watch Meterview Pro Software Video at
www.predig.com/meterviewpro

MeterView Pro Installation

1. Connect one end of the provided USB cable
to the meter and the other end to the computer. The computer will automatically install the driver software it needs to talk to the meter. Follow the on-screen instructions and allow sufficient time for the process to complete. This can take a few minutes. If the process is interrupted, then it could leave the system in an unstable condition.
• Only one meter may be connected at a time. Attaching multiple meters will cause a conflict with the meter software.
• DO NOT apply AC or DC power to the meter when using the USB connection.
2. Once the driver is installed, an AutoPlay dialog should appear for the drive
“MAINSTAL.” Click “Open folder to view
files.”
If the computer does not display an AutoPlay
dialog for the drive “MAINSTAL,” you should
open My Computer and double-click on the drive labeled “MAINSTAL.”
3. Double-click on the file named “MAStart.” The program will open a few windows and install two programs on your computer. Simply follow the on-screen instructions until you see one of the dialogs below. If you
receive a “User Account Control” warning,
click “Yes.”
4. If there is an update available, click the
“Update” button to install the new version. Otherwise, click “Configure” to begin
programming your meter.
Note: If you decide to update your MeterView Pro software, once the installation has completed, you will be asked if you want to update the setup files located on the meter itself. This way, you will always have the most current version on the meter for future installs.
• DO NOT unplug the meter while the new installation files are being written to it. The meter will display uwrite during the process and you will receive an on-screen notification once the process is complete.
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Flowmeter Supply Voltage
Selection (P+, P-)
All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory configured to provide 24 VDC power for the flowmeter or sensor.
If the flowmeter requires 5 or 10 VDC excitation, the switch labeled P+/P- must be configured accordingly.
To access the voltage selection switch:
1. Turn off the power to the meter.
2. Unscrew and open the lower door panel.
3. Locate the P+/P- switch located in the center of the connections board (see diagram below).
4. Flip this switch into the appropriate position for the required flowmeter excitation.
Figure 8. Flowmeter Supply Voltage Selection
P+/P-
24V 10V 5V
MENU RIGHT UP ACK
MENU
RESET
F1
MAX
F2
ENTER
F3
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Connections

All connections are made to screw terminal connectors located under the lower door panel. Remove the single securing screw in order to access the wiring terminals.
• Use copper wire with 60°C or 60/75°C insulation for all line voltage connections. Observe all safety regulations. Electrical wiring should be performed in accordance with all applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.

Connectors Labeling

The connectors’ label, affixed to the inside of the lower door panel, shows the location of all connectors available with
the ordered configuration.
• DO NOT connect any equipment to the RJ45 M-LINK connector. Otherwise damage will occur to the
equipment and the meter.
• DO NOT disconnect the RJ45 connector located to the left of the power terminal block. Doing so will disable
the on-board digital I/O, and the RS-485 serial communications.
Figure 9. PD2-6363-6H0 / 7H0 Connectors Label
Figure 10. PD2-6363-6H7 / 7H7 Connectors Label
+
-
21
1 2 3 4 5 6 7 8
P+/P-
24V 10V 5V
M-LINK
USB
MENU RIGHT UP ACK
POWER
AB
P- F4P+
3412 5 7869
S1+ S1- COM S2+ S2-COM
Ch-A Ch-B
SIGNAL
MENU RESET
F1
MAX
F2
ENTER
F3
RS-485
DIGITAL I/O
PWR TX RX
DI DI
DO DO
O1 O2 O3 O4 G
I1 I2 I3 I4 +5
__ __
MENU
RESET
F1
MAX
F2
ENTER
F3
+
-
21
1 2 3 4 5 6 7 8
P+/P-
24V 10V 5V
M-LINK
USB
MENU RIGHT UP ACK
POWER
AB
RI-I+ NO
NC
C
NO
NC
CNONCC
NO
NCC
MA OUT
21 3
43 6521
RELAY4RELAY3
43 6521
RELAY2RELAY1
P- F4P+
3412 5 7869
S1+ S1- COM S2+ S2-COM
Ch-A Ch-B
SIGNAL
MENU RESET
F1
MAX
F2
ENTER
F3
RS-485
DIGITAL I/O
PWR TX RX
DI DI
DO DO
O1 O2 O3 O4 G
I1 I2 I3 I4 +5
__ __
MENU
RESET
F1
MAX
F2
ENTER
F3
Page 18
Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Power Connections

Power connections are made to a two-terminal connector labeled POWER. The meter will operate regardless of DC polarity connection. The + and ­symbols are only a suggested wiring convention. There are separate models for low voltage and high voltage power. See Ordering Information on page 6 for details.
Figure 11. Power Connections

Signal Connections

Signal connections are made to a nine-terminal connector labeled SIGNAL. The COM (common) terminals are the return for certain input signals. The two COM terminals connect to the same common return, and are not isolated.
The following figures show examples of signal connections.
Setup and programming is performed through the programming buttons or MeterView Pro software.
Figure 12. Flowmeters Powered by Internal Power
Supply
Figure 13. Flowmeters Powered by External
Supply
Figure 14. Self-Powered Magnetic Pickup Coil
Flowmeter
Figure 15. NPN open Collector Input
Figure 16. PNP Sensor Powered by
Internal Supply
Figure 17. Switch Input Connections
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Configure Input Type and Level Switches

Channel A and B each have an internal input type configuration switch. These switches must be set to the correct input type and level. Each switch can be set for mV, PNP, or NPN. For details on what input type to select, see Signal Connections starting on page 18.

Relay Connections

Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4. Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of the
corresponding relay. The relays’ C terminals should
not be confused with the COM (common) terminal of the INPUT SIGNAL connector.
Figure 18. Relay Connections

Switching Inductive Loads

The use of suppressors (snubbers) is strongly recommended when switching inductive loads to
prevent disrupting the microprocessor’s operation.
The suppressors also prolong the life of the relay contacts. Suppression can be obtained with resistor­capacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation:
Figure 19. AC and DC Loads Protection
Choose R and C as follows: R: 0.5 to 1 Ω for each volt across the contacts C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.
3. Install the RC network at the meter's relay screw terminals. An RC network may also be installed across the load. Experiment for best results.
Figure 20. Low Voltage DC Loads Protection
RC Networks Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
C NONO NC NC C
RELAY4 RELAY3
4 36 5 2 1
C NONO NC NC C
RELAY2 RELAY1
4 36 5 2 1
C R
C R
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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RS-485 Connections

The RS-485 connections are made to a five terminal connector used for Modbus® RTU serial communications. The RS-485 terminals include Transmit Data (DO) and (/DO), Receive Data (DI) and (/DI), and Signal Ground. See Modbus RTU Serial Communications (serial) on page 49 for more information.
There are three diagnostic LEDs: Power (PWR) Transmit Data (TX), and Receive Data (RX) to show when the meter is transmitting and receiving data from other devices.
Figure 21. RS-485 Connection

RS-485 Multi-Drop Connection

When using more than one meter in a multi-drop mode, each meter must be provided with its own unique address. The meter address (Slave ID) can be programmed between 1 and 247. The transmit delay can be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.
To change the meter address:
1. Press and hold the Menu button for three seconds to access Advanced Features menu of the meter.
2. Press Up arrow until Serial (SEriaL) menu is displayed and press Enter, Addres is displayed.
3. Press Enter to change meter address using Right and Up arrow buttons. Press Enter to accept.
4. Press Menu button to exit and return to Run Mode.

RS-485 Serial Converters

To convert the RS-485 to RS-232, use the PDA7485-I converter. To convert the RS-485 to USB, use the PDA8485-I converter. See Ordering Information on page 6 for additional information.
RS-485 Connection Examples
Figure 22. Five-Wire RS-485 Connections
Figure 23. Three-Wire RS-485 Multi-Drop
Connections
Notes:
1. Termination resistors are optional, and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations.
2. Refer to RS-232 to RS-485 Converter documentation for further details.
3. Use shielded cable, twisted-pair plus ground. Connect ground shield only at one location
RS-485
PWR TX RX
DI DI DO DO
__ __
Shield
RS-232 Serial
Connection
to PC
R
R
Twisted-Pair
R
DI DI DO DO
__ __
RS-232 to RS-485
Converter
DI
DIDO
DO
R
Shield
Twisted-Pair
R
Meter #1
DI DI DO DO
__ __
DI DI DO DO
__ __
Last Meter
RS-232 Serial
Connection
to PC
R
RS-232 to RS-485
Converter
DI
DIDO
DO
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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RS-485 Converter Connections
Figure 24 below details the wiring connections from the RS-485 connector to an RS-485 serial converter (such as the PDA7485-I or PDA8485-I) for a five-wire network.
RS-485 Connector to RS-485
Serial Converter Connections
RS-485 Connector
RS-485 to USB or
RS-232 Converter
DO DI DO DI DI DO DI DO
Figure 24. Connections for RS-485 Connector to
Serial Converter
Three-Wire Connection
In order to wire the five pins for use as a three-wire half-duplex RS-485 connection, it is necessary to create a jumper connection between DI to DO and /DI to /DO- as shown below.
Figure 25. Three-Wire RS-485 Connection

Digital I/O Connections

Digital inputs and outputs are provided in order to expand the functionality of the meter. Digital input connections are made via a push button or switch to the appropriate digital input terminal and the +5 VDC terminal. Digital output connections are made by wiring from the appropriate digital output terminal to the ground terminal.
Figure 26. Digital Input and Output Connections

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital input connected with a normally open closure across F4 and COM, or with an active low signal applied to F4. It can be used for remote operation of front-panel buttons, to acknowledge/reset relays, reset totals, or to reset max/min values. See Function Keys & Digital I/O Available Settings on page 53 for a complete list of capabilities.
Figure 27. F4 Digital Input Connections

4-20 mA Output Connections

Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT. The 4-20 mA output may be powered internally or from an external power supply.
Figure 28. 4-20 mA Output Connections
__ __
DI DI DO DO
O1 O2 O3 O4 G
I1 I2 I3 I4+5
Ground
5 VDC
4-20 mA Input
Remote Display, PLC,
Chart Recorder, Etc.
-
+
RI- I+
132
RELAY1
mA OUT
24 V
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-+
RI- I+ 132
RELAY1
321
-
24 V
mA OUT
Internal Power Supply
and Analog Output
321
Active Output Loop Passive Output Loop
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Analog Output Transmitter Power Supply

The internal 24 VDC power supply powering the analog output may be used to power other devices, if the analog output is not used. The I+ terminal is the +24 V and the R terminal is the return.
Figure 29. Analog Output Supply Powering Other
Devices

Remote Operation of Meter

The meter can be operated via the programming buttons or a PDA2364-MRUE remote control station using the digital inputs and outputs connections as illustrated in Figure 30. Meter to PDA2364-MRUE Control Station Connection.
Figure 30. Meter to PDA2364-MRUE Control
Station Connection

Interlock Relay Feature

As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as interlock relay(s). Interlock contact(s) are wired to digital input(s) and activate the interlock relay. This feature is enabled by configuring the relay, and the corresponding digital input(s), see Setting Up the Interlock Relay (Force On) Feature on page 44.
In the example below, an Interlock Contact switch is connected to a digital input, which will be used to force on (energize) the Interlock Relay. The Interlock Relay and the Control Relay are connected in series with the load.
• When the Interlock Contact is closed (safe), the Interlock Relay energizes, allowing power to flow to the Control Relay; the corresponding front panel LED is on.
• When the Interlock Contact is open, the corresponding front panel LED flashes (locked out), the Interlock Relay is de-energized, preventing power from flowing to the Control Relay and the load.
Figure 31. Interlock Connections
RI- I+
132
24 VDC
Powered
Device
24 V
+-
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Setup and Programming

The meter may either be scaled (SCALE) without applying an input, calibrated (Cal) by applying an input, or you may use the K-Factor menu to match the rate/totalizer with a flowmeter’s k-factor (pulse/unit of measure).
The meter comes factory calibrated to NIST standards, so for initial setup, it is recommended to use the K-Factor method or (SCALE) function.

Overview

There are no jumpers to set for the meter input selection. Setup and programming is done using MeterView Pro or through the programming buttons. After power and input signal connections have been completed and verified, apply power to the meter.

LED Status Indicators

LED
State
Indication
1-4
Steady
Alarm condition based on set and reset points, independent of relay status in certain configurations. (Available on all meter configurations, including those without relays installed)
1-4
Flashing
Relay interlock switch open
1-4 & M
Flashing
Relay in manual control mode
R
Steady
Rate
T
Steady
Total
T
Flashing
Meter in Tare mode
G & T
Steady
Grand Total
▲
Steady
Total overflow. (“oF” is displayed to the left of total overflow and ▲
LED is illuminated)
M
Flashing
Analog output in manual control mode
A
Steady
Channel A displayed
B
Steady
Channel B displayed
C
Steady
Channel C displayed
Page 24
Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Programming Buttons

Button
Description
Button
Description
Menu
Up Arrow/F2
Right Arrow/F1
Acknowledge (Enter)/F3
• Press the Menu button to enter or exit the Programming Mode at any time.
• Press the Right arrow button to move to the next digit during digit or decimal point programming.
• Press or hold the Up arrow button to scroll through the menus, decimal point, or to increment the value of a digit.
• Press the Enter button to access a menu or to accept a setting.
• Press and hold the Menu button for three seconds to access the advanced features of the meter.
Remote Buttons
The meter can be operated via a remote control station (PDA2364-MRUE) using the digital input connections. The PDA2364-MRUE mimics the Helios’s four programming buttons: Menu, Right Arrow, Up Arrow, and Enter.
See Remote Operation of Meter on page 22 for details.
Lower Door Panel
+
-
21
1 2 3 4 5 6 7 8
P+/P-
24V 10V 5V
M-LINK
USB
MENU RIGHT UP ACK
POWER
MENU
RESET
F1
MAX
F2
ENTER
F3
SIGNAL
AB
P- F4P+
3412 5 7869
S1+ S1-COM S2+ S2-COM
Ch-A Ch-B
RI-I+ NONC
C
NONCCNONCC NONCC
MA OUT
21 3
43 6521
RELAY4RELAY3
43 6521
RELAY2RELAY1
RS-485
DIGITAL I/O
PWR TX RX
DI DI
DO DO
O1 O2 O3 O4 G
I1 I2 I3 I4 +5
__ __
MENU
MENU
UP
MAX
F2
RIGHT
RESET
F1
ACK
ENTER
F3
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Display Functions & Messages

The meter displays various functions and messages during setup, programming, and operation. The following table shows the main menu functions and messages in the order they appear in the menu.
Display Functions & Messages
Display
Parameter
Action/Setting Description
setup
Setup
Enter Setup menu
Input
Input
Enter Input selection menu
Ch-A*
Input
Set input operation for channel A (*or B)
total
Total
Enable/disable totalizer functions
YES
Yes
Enable totalizer functions
No
No
Disable totalizer functions
nmode
Mode
Select dual-input operation mode
Dual
Dual
Set independent dual input mode
ud AB
Up/Down AB
Set channel A total add/subtract based on the state of channel B
ud A1
Up/Down AI
Set channel A total add/subtract based on the state of a digital input
ud b1
Up/Down BI
Set channel B total add/subtract based on the state of a digital input
ud b1
Up/Down ABI
Set channel A & B total add/subtract based on the state of a digital input for each
Quad 1
Quadrature 1
Set type 1 quadrature operation
Quad 2
Quadrature 2
Set type 2 quadrature operation
Quad 4
Quadrature 4
Set type 4 quadrature operation
units
Unit
Select the display units/tags
Ch-A*
Rate unit
Set rate unit or tag for channel A (*or B)
Ch-C
Math unit
Set unit or tag for math channel C
Tot-A*
Total unit
Set total unit or tag for channel A (*or B)
Gtot-A*
Grand total unit
Set grand total unit or tag for channel A (*or B)
Dec pt
Decimal point
Set decimal point
Ch-A*
Decimal point
Set decimal point for channel A (*or B or C)
Rate*
Rate
Set rate decimal point (*channel A and B only)
Display Functions & Messages
Display
Parameter
Action/Setting Description
Total*
Total
Set total decimal point (*channel A and B only)
Gtotal*
Grand total
Set grand total decimal point (*channel A and B only)
prog
Program
Enter the Program menu
InCAL
Input calibration
Enter the Input Calibration menu
Ch-A
Channel A
Enter channel A input setup
Fact-a
K-factor A
Enter channel A k-factor
SCal-a
Scale A
Enter the Scale menu for channel A
Cal-A
Calibrate A
Enter the Calibration menu for channel A
Inp 1
Input 1
Calibrate input 1 signal or program input 1 value
Dis 1
Display 1
Program display 1 value
Inp 2
Input 2
Calibrate input 2 signal or program input 2 value (up to 32 points)
Dis 2
Display 2
Program display 2 value (up to 32 points)
Error
Error
Error, calibration or scaling not successful, check signal or programmed value
Ch-b
Channel B
Enter channel B input setup
Fact-b
K-factor B
Enter channel B k-factor
SCal-b
Scale B
Enter the Scale menu for channel B
Cal-b
Calibrate B
Enter the Calibration menu for channel B
tsetup
Total setup
Enter the Total Setup menu
Ch-A*
Channel A
Setup the total for channel A (*or B)
tbase
Time base
Program total time base
T Cf
Total conversion factor
Program total conversion factor
Gt CF
Grand total conversion factor
Program grand total conversion factor
treset
Total reset
Program total reset mode: auto or manual
Ch-A*
Channel A
Set total reset modes for channel A (*or B)
T rst
Total reset
Program total reset mode: auto or manual
Gt rst
Grand total reset
Program grand total reset mode: auto or manual
Page 26
Helios PD2-6363 Dual Pulse Input Rate/Totalizer
Instruction Manual
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Display Functions & Messages
Display
Parameter
Action/Setting Description
T dly
Time delay
Program automatic reset time delay
dsplay
Display
Enter the Display menu
Line 1
Display Line 2
Assign the upper display parameter
Line 2
Display Line 2
Assign the lower display parameter
D Ch-A
Display Ch-A
Assign display to channel A
D Ch-B
Display Ch-B
Assign display to channel B
D Ch-C
Display Ch-C
Assign display to channel C (math)
D Ab
Display AB
Alternate display of channels A & B
D AC
Display AC
Alternate display of channels A & C
D BC
Display BC
Alternate display of channels B & C
D AbC
Display ABC
Alternate display of channels A, B, & C
D t-a
Display total A
Assign display to channel A total
D t-b
Display total B
Assign display to channel B total
D gt-a
Display grand total A
Assign display to channel A grand total
D gt-b
Display grand total B
Assign display to channel B grand total
D rt-a
Display rate and total A
Alternate display of channel A rate and total
D rt-b
Display rate and total B
Alternate display of channel B rate and total
Drgt-a
Display rate and grand total A
Alternate display of channel A rate and grand total
Drgt-b
Display rate and grand total B
Alternate display of channel B rate and grand total
Dset 1*
Display Set 1*
Displays relay 1 (*through 4) set point.
D Hi-A
Display high A
Display high value of channel A
D Lo-A
Display low A
Display low value of channel A
D HL-A
Display high/low A
Alternate between high/low value of channel A
D Hi-B
Display high B
Display high value of channel B
Display Functions & Messages
Display
Parameter
Action/Setting Description
D Lo-B
Display low B
Display low value of channel B
D HL-B
Display high/low B
Alternate between high/low value of channel B
D Hi-C
Display high C
Display high value of channel C
D Lo-C
Display low C
Display low value of channel C
D HL-C
Display high/low C
Alternate between high/low value of channel C
D a-u
Display A and units/tags
Alternate display of channel A and the unit/tag
D B-u
Display B and units/tags
Alternate display of channel B and the unit/tag
D C-u
Display C and units/tags
Alternate display of channel C and the unit/tag
D ta-u
Display total A and total A units
Alternate display of channel A total and total units
D tb-u
Display total B and total B units
Alternate display of channel B total and total units
D tab
Display total A and B
Alternate display of channel A total and channel B total
D TAbC
Display total A, B, and sum of A and B
Alternate display of channel A total, channel B total, and sum of totals as channel C
nm bus
Display Modbus
Display Modbus input register
D off
Display off
Display blank line 2
D unit
Display unit
Display line 1 channel units
d-Inty
Display intensity
Set display intensity level from 1 to 8
RELaY
Relay
Enter the Relay menu
Assign
Assignment
Assign relays to channels or Modbus
Asign1*
Assign 1
Relay 1 (*through 4) assignment
Ch-A*
Channel A*
Assign relay to channel A (*or B or C)
Rate*
Rate
Assign relay to rate (*channel A and B only)
Total*
Total
Assign relay to total (*channel A and B only)
Gtotal*
Grand total
Assign relay to grand total (*channel A and B only)
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Display Functions & Messages
Display
Parameter
Action/Setting Description
nm bus
Modbus
Assign relay to Modbus register
RLY 1*
Relay 1
Relay 1 (*through 4) setup
Act 1
Action 1
Set relay 1 action
Auto
Automatic
Set relay for automatic reset
Set 1
Set 1
Enter relay 1 set point
RST 1
Reset 1
Enter relay 1 reset point
A-nman
Auto­manual
Set relay for auto or manual reset any time
LatCH
Latching
Set relay for latching operation
Lt-CLr
Latching­cleared
Set relay for latching operation with manual reset only after alarm condition has cleared
Altern
Alternate
Set relay for pump alternation control
SAnmpl
Sample
Set relay for sample time trigger control
Off
Off
Turn relay off
FaiLSF
Fail-safe
Enter Fail-safe menu
FLS 1*
Fail-safe 1
Set relay 1 (*through 4) fail-safe operation
on
On
Enable fail-safe operation
off
Off
Disable fail-safe operation
DeLAY
Delay
Enter relay Time Delay menu
DLY 1*
Delay 1
Enter relay 1 (*through 4) time delay setup
On 1
On 1
Set relay 1 On time delay
OFF 1
Off 1
Set relay 1 Off time delay
Aout
Analog output
Enter the Analog output scaling menu
Aout 1
Aout Channel
Analog Output source channel
Dis 1
Display 1
Program display 1 value
Out 1
Output 1
Program output 1 value (e.g. 4.000 mA)
Dis 2
Display 2
Program display 2 value
Out 2
Output 2
Program output 2 value (e.g. 20.000 mA)
reset
Reset
Press Enter to access the Reset menu
Rst Hi
Reset high
Press Enter to reset max display
Rst Lo
Reset low
Press Enter to reset min display
Rst HL
Reset high & low
Press Enter to reset max & min displays
Display Functions & Messages
Display
Parameter
Action/Setting Description
Tot a
Reset total A
Press Enter to reset channel A total
Tot b
Reset total B
Press Enter to reset channel B total
Gtot a
Reset grand total A
Press Enter to reset channel A grand total
Gtot b
Reset grand total B
Press Enter to reset channel B grand total
Tot ab
Reset totals A and B
Press Enter to reset channels A and B totals
Gt ab
Reset grand totals A and B
Press Enter to reset channels A and B grand totals
Contrl
Control
Enter Manual Control menu
Auto
Automatic
Press Enter to set meter for automatic operation
nmAn
Manual
Press Enter to manually control relays or analog output operation
pass
Password
Enter the Password menu
Pass 1
Password 1
Set or enter Password 1
unloc
Unlocked
Program password to lock meter
Locd
Locked
Enter password to unlock meter
Pass 2
Password 2
Set or enter Password 2
Pass 3
Password 3
Set or enter Password 3
Total
Total reset password
Set or enter a total reset password
Gtotal
Grand total password
Set or enter a grand total reset password
999999
Flashing
Overrange condition
Page 28
Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Main Menu

The main menu consists of the most commonly used functions: Reset, Manual Control, Setup, and Password.
• Press Menu button to enter Programming Mode then press the Up arrow button to scroll main menu.
• Press Menu, at any time, to exit and return to Run Mode. Changes made to settings prior to pressing Enter are not saved.
• Changes to the settings are saved to memory only after pressing Enter.
• The display moves to the next menu every time a setting is accepted by pressing Enter.

Setting Numeric Values

The numeric values are set using the Right and Up arrow buttons. Press Right arrow to select next digit and Up arrow to increment digit value. The digit being changed is displayed brighter than the rest.
Press and hold Up to auto-increment the display value. If negative numbers are allowed, the first digit position will include a negative symbol (-) after the 9.
Press the Enter button, at any time, to accept a setting or Menu button to exit without saving changes.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Setting Up the Meter (setup)

The Setup menu is used to select:
1. Total enable/disable and channel A and B input modes
2. Units for A & B rate, total & grand total, and C
3. Decimal positions for A & B rate, total, and grand total, and C
4. Program the K-factor (or scale or calibrate) & total functions
5. Display parameters and intensity
6. Relay assignments and operation
7. 4-20 mA analog output scaling
Press the Menu button to exit at any time.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Setting the Input Signal (Input)

There is a switch, located to the right of the input connector, which must be configured according to the input level and type. The switch labeled P+/P- located in the center of the connections board is used to select the excitation voltage (24 V [Default setting], 10 V or 5 V) which is supplied to the P+ and P- wiring terminals.
Enter the Input menu to enable or disable the totalizer features.

Setting the Totalizer Features (total)

To simply not display the total, select alternative display parameters in the display (dsplay) menu.
Enable or disable the totalizer features by selecting
“Yes” or “no” after the input type has been set up. If
the totalizer features are disabled, most totalizer features and functions are hidden from the menus.
Note: The totalizer continues working in the background.

Setting the Dual-Input Mode (nmode)

The Mode menu is used to set the functions of the dual input and total. The inputs may be configured for independent one-directional total operation, bi­directional total count with the use of another input or a digital input, or for quadrature input modes.
Independent Dual Totalizers (DUAL)
Total A and B are one-directional and independent, only counting up or down depending on Count settings.
Ch-A Totalizer Add/Subtract by Ch-B Input (ud AB)
Total of channel A will add or subtract as determined by the state of input channel B. Channel A total will add at each falling edge if input B is high, and subtract at each rising edge if input B is low.
Ch-A Totalizer Add/Subtract by Digital Input (ud AI)
Total of channel A will add or subtract as determined by the state of a digital input. Channel A total will add at each falling edge if an assigned digital input is high, and subtract at each rising edge if an assigned digital input is low.
Figure 32. Dual Input Mode (ud AB)
Figure 33. Dual Input Mode (ud AI)
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Ch-B Totalizer Add/Subtract by Digital Input (ud BI)
Total of channel B will add or subtract as determined by the state of a digital input. Channel B total will add at each falling edge if an assigned digital input is high, and subtract at each rising edge if an assigned digital input is low.
Ch-A & Ch-B Totalizer Add/Subtract by Digital Input (ud aB)
Totals of channel A and B will add or subtract as determined by the state of a digital input assigned to each channel. This mode combines the features of ud AI and ud BI.
This setting requires the use of the on-board digital inputs. The F4 digital input will only support one channel.
Quadrature Input Type 1 (quad 1)
Quadrature modes are used to accept inputs that are ±90 degrees out of phase, from quadrature output devices. Total of channel A will add or subtract as determined by the state of input channel B. Channel A total will add at each rising edge if channel B is high, and subtract at each rising edge if channel B is low.
Quadrature Input Type 2 (quad 2)
Quadrature modes are used to accept inputs that are ±90 degrees out of phase, from quadrature output devices. Total of channel A will add or subtract as determined by the state of input channel B. Channel A total will add at each rising edge if channel B is high, and at each falling edge if channel B is low. Channel A total will subtract at each rising edge if channel B is low, and at each falling edge if channel B is high.
Quadrature Input Type 4 (quad 4)
Quadrature modes are used to accept inputs that are ±90 degrees out of phase, from quadrature output devices. Totals of channel A and B will add at each rising and falling edge of that channel.
Figure 34. Dual Input Mode (ud BI)
Figure 35. Dual Input Mode (quad 1)
Figure 36. Dual Input Mode (quad 2)
Figure 37. Dual Input Mode (quad 4)
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Setting the Rate, Total, & Grand Total Units/Tags (units)

Enter the channel A and B rate, total, grand total, and math channel C units (or custom tags) that will be displayed if alternating units is selected in the units menu, or d unit is selected as the lower display parameter.
See the Setting the Display Parameters & Intensity (dsplay) flow chart on page 36 for details on accessing the Units menu and parameters. Ch-A and Ch-B set the rate units, tot-A and tot-B the total units, and Gtot-A and Gtot-B the grand total units. Ch-C sets the units for the math channel C.
See the Setting the Display Parameters & Intensity (dsplay) flow chart on page 36 to access the display menu to show the unit or tag on the lower display.
The engineering units or custom legends can be set using the following 7-segment character set:
Display
Character
Display
Character
0
0
k K 1
1
l
L
2
2
n m
m
3
3
n n 4
4
O O 5
5
o
o
6
6
p
P
7
7
q q 8
8
r r 9
9
s
S
A
A
t
t
b
b
u u C
C
v V c
c
uw
w
d
d
x
X
e
E
y Y f
F
z Z g
G
-
-
9
g
/
/
H
H
[ ] h
h
] [ I
I
=
=
I
i
!
Degree(<)
j
J
Space
Notes:
1. Degree symbol represented by (<) if programming with MeterView Pro.
2. The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted one position.
3. Press and hold up arrow to auto-scroll the characters in the display.

Setting the Decimal Point (dEc pt)

The decimal point for any channel, rate, total, or grand total, may be set with up to five decimal places or with no decimal point at all.
Pressing the Right arrow moves the decimal point one place to the right until no decimal point is displayed, and then it moves to the leftmost position. Pressing the Up arrow moves the decimal point one place to the left.
There are seven decimal points to set up for three channels: Ch-A rate, total, and grand total; Ch-B rate, total, and grand total; and Ch-C.
After the decimal points are set up, the meter moves to the Program menu.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Programming the Rate/Totalizer (prog)

The meter may either be scaled (SCALE) without applying an input, calibrated (Cal) by applying an input, or you may use the K-Factor menu to match the rate/totalizer with a flowmeter’s k-factor (pulse/unit of measure). The meter comes factory calibrated to NIST standards, so for initial setup, it is recommended to use the (SCALE) function.
The Program menu contains the following menus for each channel A and B:
1. K-Factor calibration
2. Scale without a signal source
3. Calibrate with a calibrated signal source
4. Total time base & conversion factor
5. Grand total time base & conversion factor
6. Reset modes for total & grand total
The pulse inputs may be calibrated or scaled to any display value within the range of the meter.
Additional parameters, not needed for most applications, are found in the Advanced Features menu; see Advanced Features Menu, page 47.
Input Calibration Method (InCAL)
There are three methods of calibrating (or scaling) the display for each input channel to show the correct engineering units.
• Use the Factor menu to enter the k-factor of a flowmeter in units/pulse
• Use the Scale menu to enter the scaling without a signal source.
• Use the Calibrate menu to apply a signal from a signal source.
• The Scale, Calibrate, and K-Factor functions are exclusive of each other. The meter uses the last function programmed. Only one of these methods can be employed at a time.
Multi-Point Calibration & Scaling
The Scale and Calibrate functions can use up to 32 points (default is 2). The number of points should be set in the Advanced menu under the Multi-Point Linearization (Linear) menu selection prior to scaling and calibration of the meter, see page 50 for details.
K-Factor Calibration (Fact-A, Fact-b)
The meter may be calibrated using the K-Factor function. Most flowmeter manufacturers provide this information with the device. Enter the K-Factor (Fact-A, Fact-b) menu and select the decimal point with highest resolution possible and program the k­factor value (i.e. pulses/gal). The meter will automatically calculate the flow rate using the k-factor and the time base selected.
Scaling the Meter without a Signal Source (SCAL-A, SCAL-B)
The inputs can be scaled to display the process variables in engineering units.
A signal source is not needed to scale the meter; simply program the inputs and corresponding display values.
From the INCAL menu, select channel A or B, followed by SCal-A or SCal-B, and then set the input signal value and display value for each of the scaling points (default is two). Enter the input signal values in pulses/second (Hz), and the corresponding display values in appropriate engineering units.
Channel B is scaled similarly to Channel A, shown below.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Scaling the Meter for Channel A (SCal-A)
For instructions on how to program numeric values
see Setting Numeric Values, page 28.
Note: The display values (DiS 1 and DiS 2) need to be in units of measure per second. For example, if the rate at 1000 Hz is 13.20 gal/min, this must be converted to gal/sec. In this scenario, the numbers input into the SCALE menu would be as follows:
InP 1: 0.0 DiS 1: 0.00 InP 2: 1000.0 DiS 2: 0.22
Set the time base set to minutes (see Total & Grand Total Setup (tsetup) on page 35) and the meter will
display 13.20 gal/min at 1000 Hz
Error Message (Error)
An error message indicates that the calibration or scaling process was not successful.
After the error message is displayed, the meter reverts to input 2 during calibration or scaling and to input 1 during internal calibration, allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected backwards.
2. Minimum input span requirements not maintained.
3. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum allowed input span is 1.0 Hz, which is the minimum difference between input 1 and input 2 signals required to complete the calibration using an external signal source, or 0.1 Hz for scaling the meter without a signal source.
Calibrating the Meter with External Source (CAL-A, CAL-B)
To scale the meter without a signal source, refer to
Scaling the Meter without a Signal Source (SCAL-A,
SCAL-B), page 33.
The meter can be calibrated to display the process variables in engineering units by applying the appropriate input signal and following the calibration procedure.
The use of a calibrated signal source is strongly recommended to calibrate the meter.
There is no need to warm up the meter before
performing calibration of the inputs.
Channel B is calibrated similarly to Channel A, shown below.
Calibrating the Meter for Channel A (CAL-A)
Note: The display values (
DiS 1
and
DiS 2
) need to
be in units of measure per second. Note: Inputs for the above example are:
Input 1: 0.0 Hz; Display 1: 0.0 gallons/min Input 2: 1000.0 Hz; Display 2: 6000.0 gallons/min
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Total & Grand Total Setup (tsetup)
The time base and total and grand total conversion factors for input channels A and B are located in the Totalizer Setup menu.
The time base is determined by the rate programming. Enter the time unit of the programmed rate scale. For example: A rate display scaled in
engineering units of gallons per minute would use a time base of minutes.
Total & grand total conversion factors for channel A and B are programmed independently. This means that one total or grand total can be displaying the value in gallons while another displays in million gallons, liters, m3, etc.
Total & Grand Total Reset (treset)
Total reset menus are located in the Program menu. The totals can be programmed for manual or automatic reset. In the automatic reset mode, a programmable time delay is available to reset the total or grand total after the assigned preset is reached.
The totals can also be reset via the front panel button, via a switch across the F4 terminal, digital inputs, or via a Modbus command.
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Setting the Display Parameters & Intensity (dsplay)

Display line 1 (line 1) can be programmed to display:
1. Ch-A rate (D Ch-A)
2. Ch-B rate (D Ch-B)
3. Ch-C math channel (D Ch-C)
4. Toggle Ch-A & Ch-B rate (D AB)
5. Toggle Ch-A rate and Ch-C (D AC)
6. Toggle Ch-B rate and Ch-C (D BC)
7. Toggle Ch-A & Ch-B rate, and Ch-C (D ABC)
8. Ch-A total (D T-A)
9. Ch-B total (D T-B)
10. Ch-A grand total (D GT-A)
11. Ch-B grand total (D GT-B)
12. Toggle Ch-A rate and total (D RT-A)
13. Toggle Ch-B rate and total (D RT-B)
14. Toggle Ch-A rate and grand total (DRGT-A)
15. Toggle Ch-B rate and grand total (DRGT-B)
16. Relay set points (1-4) (DSET 1 to DSET 4)
17. Max, min, and max & min values for
Ch-A, Ch-B, or Ch-C (D Hi-A to d HL-C)
18. Toggle Ch-A rate & units (d A-u)
19. Toggle Ch-B rate & units (d B-u)
20. Toggle Ch-C & units (d C-u)
21. Toggle Ch-A total & units (d TA-u)
22. Toggle Ch-B total & units (d TB-u)
23. Toggle Ch-A total and Ch-B total (d tAb)
24. Toggle Ch-A total, Ch-B total, and the sum of
total A + total B (d tABC)*
25. Modbus input (nm bus)
*Note: The (C = sum of total A + total B) displayed with the selection (d tABC) is different than the math channel C calculated under the Math menu functions. Example: (C = Rate Ch-A + Rate Ch-B).
Display line 2 (Line 2) can be programmed to display:
1. All options for display line 1
2. Off, with no display (d ofF)
3. Engineering units for any single channel,
total, or grand total
Display Parameter Menu
After setting up the input and display, press the Menu button to exit programming and skip the rest of the setup menu.
Customizable Displays
The displays can be set up to read input channels (A or B), rate, total, or grand total, math function channel C, toggle between A & B, B & C, A & C, A & B & C, toggle between channels A, B, or C & units, the max/min of any of the channels, including the math channel (C), set points, or the Modbus input. This allows the display to be setup to display whatever variables are most valuable to the application. Here are just a few examples.

Display Intensity (d-Inty)

The meter has eight display intensity levels to give the best performance under various lighting conditions. Select intensity 8 for outdoor applications. The default intensity is 6.
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Setting the Relay Operation (relay)

This menu is used to set up the assignment and operation of the relays.
• During setup, the relays do not follow the input and they will remain in the state found prior to entering the Relay menu.
1. Relay assignment
a. Channel A rate, total, or grand total b. Channel B rate, total, or grand total c. Channel C (Math channel) d. Modbus
2. Relay action
a. Automatic reset only (non-latching) b. Automatic + manual reset at any time
(non-latching) c. Latching (manual reset only) d. Latching with Clear (manual reset only
after alarm condition has cleared) e. Pump alternation control (automatic
reset only) f. Sampling (the relay is activated for a
user-specified time) g. Off (relay state controlled by Interlock
feature)
3. Set point
4. Reset point
5. Fail-safe operation a. On (enabled) b. Off (disabled)
6. Time delay a. On delay (0-999.9 seconds) b. Off delay (0-999.9 seconds)

Setting the Relay Assignment (asSign)

Relays may be assigned to Channel A (rate, total, or grand total), Channel B (rate, total, or grand total), Channel C (Math channel), or Modbus input.

Setting the Relay Action (Act)

Operation of the relays is programmed in the Action menu. The relays may be set up for any of the following modes of operation:
1. Automatic reset (non-latching)
2. Automatic + manual reset at any time (non­latching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after alarm condition has cleared)
5. Pump alternation control (automatic reset only)
6. Sampling (the relay is activated for a user­specified time)
7. Off (relay state controlled by Interlock feature)
The following graphic shows relay 1 action setup; relay 2-4 are set up in a similar fashion.
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Programming Set and Reset Points

High alarm indication: program set point above reset point. Low alarm indication: program set point below reset point. The deadband is determined by the difference between set and reset points. Minimum deadband is one display count. If the set and reset points are programmed with the same value, the relay will reset one count below the set point.
Note: Changes are not saved until the reset point has been accepted.

Setting Fail-Safe Operation

In fail-safe mode of operation, the relay coil is energized when the process variable is within safe limits and the relay coil is de-energized when the alarm condition exists. The fail-safe operation is set independently for each relay. Select on to enable or select off to disable fail-safe operation.

Programming Time Delay

The On and Off time delays may be programmed for each relay between 0 and 999.9 seconds. The relays will transfer only after the condition has been maintained for the corresponding time delay.
The On time delay is associated with the set point. The Off time delay is associated with the reset point.
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Relay and Alarm Operation Diagrams

The following graphs illustrate the operation of the relays, status LEDs, and ACK button.

High Alarm Operation (Set > Reset)

For Manual reset mode, ACK can be pressed anytime to turn "off" relay. To detect a new alarm condition, the signal must go below the set point, and then go above it.

Low Alarm Operation (Set < Reset)

For Manual reset mode, ACK can be pressed anytime to turn "off" relay. To detect a new alarm condition, the signal must go below the set point, and then go above it.

High Alarm with Fail-Safe Operation (Set > Reset)

Note: Relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state.

Low Alarm with Fail-Safe Operation (Set < Reset)

Note: Relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state.
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Time Delay Operation

The following graphs show the operation of the time delay function.
When the signal crosses the set point, the On time delay timer starts and the relay trips when the time delay has elapsed. If the signal drops below the set point (high alarm) before the time delay has elapsed, the On time delay timer resets and the relay does not change state. The same principle applies to the Off time delay.
Note: If “Automatic or Manual (A-nmAn)” reset mode is selected, the LED follows the reset point and not the relay state when the relay is acknowledged.

Total Relay Sampling Operation

When the total reaches the preset, the relay trips and the sample time starts. After the sample time has elapsed, the relay resets. The cycle repeats every time the preset value is added to the total.
Preset = 100
100
Relay
LED
Total
200
300
Sample
Time
Sample
Time
Sample
Time
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Pump Alternation Control Operation

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Relay Operation Details

Overview

The four-relays option for the meters expands its usefulness beyond simple indication to provide users with alarm and control functions. Typical applications include high and low temperature, level, pressure or flow alarms, control applications such as simple on/off pump control, and pump alternation control for up to 4 pumps. There are four basic ways the relays can be used:
1. High and Low Alarms with Latching or Non­Latching Relays
2. Simple On/Off Control with 100% Adjustable Deadband
3. Sampling (Based on Time)
4. Pump Alternation Control for up to 4 Pumps

Relays Auto Initialization

When power is applied to the meter, the front panel LEDs and alarm relays will reflect the state of the input to the meter. The following table indicates how the alarm LEDs and relays will react on power-up based on the set and reset points:

Fail-Safe Operation

The following table indicates how the relays behave based on the fail-safe selection for each relay:
Fail-Safe Selection
Non-Alarm State
Alarm State
Power Failure
NO
NC
NO
NC
Off
Open
Closed
Closed
Open
Relays go to non­alarm state
On
Closed
Open
Open
Closed
Relays go to alarm state
Note: NO = Normally Open, NC = Normally Closed.
This refers to the condition of the relay contacts when the power to the meter is off.

Front Panel LEDs

The alarm status LEDs on the front panel are available on all meters, even those without relays installed, and provide status indication for the following:
LED
Status
1
Alarm 1
2
Alarm 2
3
Alarm 3
4
Alarm 4
The meter is supplied with four alarm points that include front panel LEDs to indicate alarm conditions. This standard feature is particularly useful for alarm applications that require visual-only indication. The LEDs are controlled by the set and reset points programmed by the user. When the display reaches a set point for a high or low alarm, the corresponding alarm LED will turn on. When the display returns to the reset point the LED will go off. The front panel LEDs responds differently for latching and non­latching relays.
For non-latching relays, the LED is always off during normal condition and always on during alarm condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).
For latching relays, the alarm LEDs reflects the status of the relays, regardless of the alarm condition. The following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge button (Default: F3 key assigned to ACK).

Latching and Non-Latching Relay Operation

The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation.
Relay terminology for following tables
Terminology
Relay Condition
On
Alarm (Tripped)
Off
Normal (Reset)
Ack
Acknowledged
The On and Off terminology does not refer to the status of the relay’s coil, which depends on the fail­safe mode selected.
• In latching relay mode, if Fail-Safe is off, latched relays will reset (unlatch) when power is cycled.
Alarm #
HI or LO
Alarm
Set
Point
Reset Point
Power-
Up
Reading
Relay &
LED
1
HI
1000
500
499
Off
2
LO
700
900
499
On
3
LO
250
400
499
Off
4
HI
450
200
499
On
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Non-Latching Relay (Auto)

In this application, the meter is set up for automatic reset (non-latching relay). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm finally goes away, the relay automatically resets and the LED also goes off.

Non-Latching Relay with Manual Reset (A-nman)

In this application, the meter is set up for automatic and manual reset at any time (non-latching relay). The LED and the relay automatically reset when the meter returns to the normal condition.
In addition, the relay can be manually reset while the alarm condition still exists, but the LED will stay on until the meter returns to the normal condition.
Automatic + manual reset at any time
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Normal
Off
Off
Next Alarm
On
On
Ack
On
Off
Normal
Off
Off

Latching Relay (LatcH)

In this application, the meter is set up for manual reset at any time. Acknowledging the alarm even if the alarm condition is still present resets the relay and turns off the LED.
Manual reset any time
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack
Off
Off

Latching Relay with Clear (Lt-Clr)

In this application, the meter is set up for manual reset only after the signal passes the reset point (alarm condition has cleared). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm is acknowledged after it returns to the normal state, the LED and the relay go off. Notice that the LED remains on, even after the meter returns to the normal condition. This is because, for latching relays, the alarm LED reflects the status of the relay, regardless of the alarm condition.
Manual reset only after
alarm condition has cleared
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
On
On
Ack
Off
Off
Light / Horn / Button Accessories
Add visible and audible ways to indicate
alarm conditions on any Helios meter with
the MOD-PD2LH Light / Horn / Button
accessories. The light with built-in 85 dB
horn, and button come mounted and wired
to the Helios. Meter and accessories are ordered as separate items. See Ordering
Information on page 6.
Automatic reset only
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
Off
Off
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Acknowledging Relays

There are three ways to acknowledge relays programmed for manual reset:
1. Via the programmable front panel function keys F1-F3 (Example: F3 assigned to ACK).
2. Remotely via a normally open push button wired to the F4 terminal.
3. Remotely via a normally open push button wired to one of the digital inputs and the +5 V terminal on the digital I/O connections.
When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are acknowledged.
Acknowledging Relays with Remote Control Station
Relays may be remotely acknowledged by connecting the PDA2361-A to either the F4 terminal or a digital input as described above.

Setting Up the Interlock Relay (Force On) Feature

Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature:
1. Access the Setup – Relay – Action menu and set the action to off.
2. In the Advanced features – User menu program
any of the digital inputs to Force On any of the internal relays (1-4).
3. Connect a switch or dry contact between the +5V
terminal and the corresponding digital input (dI-1 to dI-4) terminal.
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front panel LEDs are steady on) when SW1 & SW2 switches (above) are closed. If the contacts to these digital inputs are opened, the corresponding front panel LEDs flash, indicating this condition. The processes being controlled by the interlock relay will stop, and will re-start only after the interlock relay is re-activated by the digital inputs (switches).
Note: If multiple digital inputs are assigned to the same relay, then the corresponding logic is (AND) – i.e. both switches must be closed to trip the relay.
• If the digital inputs are assigned to the Interlock
Function, then they cannot be used to program
the meter remotely.
MENU RIGHT UP ACK
ACK
MENU RESET
F1
MAX
F2
ENTER
F3
P- F4P+ COM S1+
3412 5
S1- COM S2+ S2-
7869
O1 O2 O3 O4 G
I1 I2 I3 I4+5
Ground
5 VDC
ACK
O1 O2 O3 O4 G
I1 I2 I3 I4+55 VDC
SW1
SW2
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Scaling the 4-20 mA Analog Output (Aout)

The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected. To select the channel and source assignments the analog output are assigned to, see Analog Output Source on page 52.
No equipment is needed to scale the analog output; simply program the display values to the corresponding mA output signal.
The Analog Output menu is used to program the 4-20 mA outputs based on display values.
For further details, see Setting Numeric Values on
page 28.

Reset Menu (reset)

The Reset menu is used to reset the maximum (peak) value of Ch-A and Ch-B rate (rst Hi), minimum (valley) reading of Ch-A and Ch-B rate (rst Lo), both high and low value of Ch-A and Ch-B rate (rst HL), Ch-A total (tot A) or Ch-B total (tot B), Ch-A grand total (Gtot A) or Ch-B grand total (Gtot B), both Ch-A and Ch-B totals (tot AB), or both Ch-A and Ch-B grand totals (Gt AB).

Manual Control Menu (Contrl)

The Manual Control menu is used to control the 4-20 mA analog output (Aout 1 only) and the relays manually, ignoring the input. Each relay and analog output can be programmed independently for manual control. Selecting automatic control sets all relays and analog output for automatic operation.
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Setting Up the Password (pass)

The Password menu is used for programming three levels of security to prevent unauthorized changes to the programmed parameter settings, to restrict the ability to reset the totals and grand totals, and to program the non-resettable totalizer.
Pass 1: Allows use of function keys and digital inputs Pass 2: Allows use of function keys, digital inputs and editing set/reset points Pass 3: Restricts all programming, function keys, and digital inputs. Total: Prevents resetting the total manually Gtotal: Prevents resetting the grand total manually

Protecting or Locking the Meter Functions

Enter the Password menu and program a six-digit password.
For instructions on how to program numeric values see Setting Numeric Values on page 28.
Total Reset Password & Non­Resettable Total
The total and the grand total can be password­protected to prevent unauthorized total resets.
The grand total can be programmed as a non­resettable total by entering the password “050873”.
• Once the Grand Total has been programmed as “non-resettable” the feature CANNOT be disabled.

Making Changes to a Password Protected Meter

If the meter is password protected, the meter will display the message Locd (Locked) when the Menu button is pressed. Press the Enter button while the message is being displayed and enter the correct password to gain access the menu. After exiting the programming mode, the meter returns to its password protected condition.

Disabling Password Protection

To disable the password protection, access the Password menu and enter the correct password twice, as shown below. The meter is now unprotected until a new password is entered.
If the correct six-digit password is entered, the meter displays the message unLoc (unlocked) and the protection is disabled until a new password is programmed.
If the password entered is incorrect, the meter displays the message Locd (Locked) for about two seconds, and then it returns to Run Mode. To try again, press Enter while the Locked message is displayed.
Did you forget the password?
The password may be disabled by entering a master password once. If you are authorized to make changes, enter the master password 508655 to unlock the meter.
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Advanced Features Menu

To simplify the setup process, functions not needed for most applications are located in the Advanced Features menu.
Press and hold the Menu button for three seconds to access the advanced features of the meter.

Advanced Features Menu & Display Messages

The following table shows the functions and messages of the Advanced Features menu in the order they appear in the menu.
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
Gate
Gate
Enter Gate function menu
Lo G
Low gate
Program Low gate value
Hi G
High gate
Program High gate value
filter
Filter
Enter the Filter menu
Ch-A
Channel A
Set filter speed for channel A
Ch-b
Channel B
Set filter speed for channel B
Lo Spd
Low speed
Set the contact de-bounce filter value
Hi Spd
High speed
Select high speed filter
Round
Round
Set the rounding value for the display
seriAl
Serial
Set serial communication parameters
SlaVId
Slave ID
Set slave ID or meter address
Baud
Baud rate
Select baud rate
Tr dLY
Transmit delay
Set serial communication transmit delay
Parity
Parity
Select parity Even, Odd, or None with 1 or 2 stop bits
t-byt
Time byte
Set byte-to-byte timeout
SelEct
Select
Enter the Select menu (function, math, constant, cutoff, count, Aout programming)
Functn
Input signal conditioning
Select linear function parameters
Ch-A
Channel A
Select menu for channel A
Ch-b
Channel B
Select menu for channel B
Linear
Linear
Set meter for linear function and select number of linearization points
No pts
Number of points
Set the number of linearization points (default: 2)
nmath
Math
Select the channel C math function
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
Sunm
Sum
C = (A+B+P)*F
Dif
Difference
C = (A-B+P)*F
difabs
Abs difference
C = ((Absolute value of (A-B))+P)*F
Avg
Average
C = (((A+B)/2)+P)*F
nmulti
Multiplication
C = ((A*B)+P)*F
DiVide
Divide
C = ((A/B)+P)*F
Hi-ab
Max of A or B
C = ((High value of channel A or B)+P)*F
Lo-ab
Min of A or B
C = ((Low value of channel A or B)+P)*F
Drauw
Draw
C = ((A/B)-1)*F
uw Avg
Weighted avg.
C = ((B-A)*F)+A
ratio
Ratio
C = (A/B)*F
Ratio2
Ratio 2
C = ((B-A)/A)+P)*F
Concen
Concentration
C = (A/(A+B))*F
Sunm t
Sum total
C = (tA+tB+P)*F
Sunmgt
Sum grand total
C = (GtA+GtB+P)*F
Dif t
Diff. of total
C = (tA-tB+P)*F
Dif gt
Difference of grand total
C = (GtA-GtB+P)*F
Tratio
Total ratio
C = (tA/tB)*F
t-rat2
Total ratio 2
C = ((tB-tA)/tA)*F
T pct
Total percent
C = (tA/(tA+tB))*100
Const
Constant
Enter math equation constants
adder
Adder
Addition constant used in channel C math calculations (P)
factor
Factor
Multiplication constant used in channel C math calculations (F)
CutofF
Cutoff
Set low-flow cutoff
Ch-A
Channel A
Set low-flow cutoff for Channel A
Ch-b
Channel B
Set low-flow cutoff for Channel B
Count
Count
Set total count direction
Ch-A
Channel A
Set total count direction for Channel A
Ch-b
Channel B
Set total count direction for Channel B
Tot C
Total count
Set direction of total count
Gtot C
G. total count
Set direction of grand total count
up
Count up
Count up
Douwn
Count down
Count down
C strt
Count start
Enter count down start value
AoutPr
Analog output programming
Program analog output parameters
Aout 1
Analog output 1
Program analog output
Source
Source
Select source for the 4-20 mA output
Calib
Calibrate
Calibrate 4-20 mA output
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Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
4 nmA
4 mA output
Enter mA output value read by milliamp meter with at least 0.001 mA resolution
20 nmA
20 mA output
Enter mA output value read by milliamp meter with at least 0.001 mA resolution
O-rang
Overrange
Program mA output for display overrange
u-rang
Underrange
Program mA output for display underrange
nmAx
Maximum
Program maximum mA output allowed
nmin
Minimum
Program minimum mA output allowed
User
User I/O
Assign function keys and digital I/O
F1*
F1* function key
Assign F1 function key (*F1/F2/F3)
F4
F4 digital input
Assign F4 function (digital input)
dI I
Digital input 1
Assign digital input 1 – 4
dO 1
Digital output 1
Assign digital output 1 – 4
Diag
Diagnostics
Display parameter settings
LED t
LED test
Test all LEDs
Info
Information
Display software number and version
Erase
Erase
Erase MeterView Pro software stored in meter’s memory

Gate Function (Gate)

The gate function (Gate) is the first option in the Advanced Features menu. There are two settings for the Gate, low gate (Lo G) and high gate (Hi G). Channel A and B use the same gate settings.
The gate function is used for displaying slow pulse rates. Using the programmable gate, the meter is able to display pulse rates as slow as 1 pulse every 999.9 seconds (0.001 Hz). The gate function can also be used to obtain a steady display reading with a fluctuating input signal.
Low Gate (Lo G)
For most applications, low gate setting should be left at 1.0 second. Increase low gate setting to obtain a steadier rate display. The rate display will update in accordance with the low gate setting, for example if low gate is set at 10.0, the display will update every 10 seconds; changes in rate between updates will not be reflected until next display update.
High Gate (Hi G)
Set the high gate value to correspond to the highest expected pulse period (lowest pulse rate). For instance if the meter must display a rate when there is 1 pulse coming into the meter every 10 seconds, set the high gate to 11.0 seconds. When the signal is removed from the meter, the display will show the last reading for 11 seconds; then it will read zero.
Gate Settings
Slow Pulse Rate
Low Gate*
(sec)
High Gate
(sec)
Min Freq**
(Hz)
1.0
2.0
0.5000
1.0
10.0
0.1000
1.0
20.0
0.0500
1.0
100.0
0.0100
1.0
200.0
0.0050
1.0
400.0
0.0025
1.0
800.0
0.0012
1.0
999.9
0.0010
*The low gate setting corresponds to the display update rate and is used to stabilize the display reading with a fluctuating signal.
**The minimum frequency is dependent on high gate setting.
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Contact De-Bounce Filter (FiLter)

The filter function (Filter) is the second option in the Advanced Features menu. The filter function (FiLter) can be used for applications where the meter is set up to count pulses generated by switch contacts. The filter value can be set anywhere between 2 and 50, the higher the value, the greater the filtering. Channel A and B have independent settings.
There are two settings, Hi SPd (high speed) and Lo
SPd (low speed). After pressing ENTER to select Lo SPd, enter the desired filter setting based on the table
below so that there are no extra counts when a contact closure is completed. Selecting Hi SPd does not require a programmable filter value.
Filter Settings
Contact De-Bounce Filter
Filter Setting
Speed Setting
Max Freq (Hz)
2
Lo SPd
999
4
Lo SPd
499
8
Lo SPd
249
16
Lo SPd
124
32
Lo SPd
62
40
Lo SPd
50
50
Lo SPd
40
N/A
Hi SPd
30,000

Rounding Feature (round)

The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used in addition to the filter function.
Rounding causes the display to round to the nearest value according to the rounding selected. This setting affects the last two digits, regardless of decimal point position.
Rounding Selection
Actual Value
Display Value
Actual Value
Display Value
1
12.022
12.022
12.023
12.023
5
12.022
12.020
12.023
12.025
10
12.024
12.020
12.025
12.030

Modbus RTU Serial Communications (serial)

The meter is equipped with serial communications capability as a standard feature using Modbus RTU Serial Communication Protocol.
The meter may be connected to a PC for initial configuration via the on-board USB connection. For ongoing digital communications with a computer or other data terminal equipment, use the RS-485 connection with the appropriate serial converter; see Ordering Information on page 6 for details.
• DO NOT connect any equipment to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.
• DO NOT disconnect the RJ45 connector located to the left of the power terminal block. Doing so will disable the on-board digital I/O, and the RS-485 serial communications.
Notes:
1. More detailed instructions are provided with each optional serial communications adapter.
2. Refer to the Helios Modbus Register Tables located at www.predig.com for details.
When using more than one meter in a multi-drop mode, each meter must be provided with its own unique address. The meter address (Slave ID) may be programmed between 1 and 247. The transmit delay may be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.
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Select Menu (SElect)

The Select menu is used to select the input signal conditioner applied to the inputs, math function for A & B, constants, low-flow cutoff, total count direction (up or down from a preset amount), and analog output programming. Multi-point linearization is part of the linear function selection.

Input Signal Conditioning (Functn)

The Function menu is used to condition the linear input signal. Multi-point linearization is part of the linear function selection. Each input channel input signal conditioner is programmed independently.
Multi-Point Linearization (Linear)
Meters are set up at the factory for linear function with 2-point linearization. Up to 32 linearization points can be selected for each channel under the linear function. The multi-point linearization can be used to linearize the display for non-linear signals such as those from level transmitters used to measure volume in odd-shaped tanks or to convert level to flow using weirs and flumes with complex exponent.
Note: After Scale is displayed continue pressing the
Enter button until the meter completes the scaling of the input and display values.
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Math Function (nmath)

The Math menu is used to select the math function that will determine the channel C value. These math functions are a combination of input channels A and B, and will display when channel C is selected in the Display menu.
A and B refer to the rate of channel A and B. tA and tB refer to the totals of channel A and B. GtA and GtB refer to the grand totals of channel A and B. The following math functions are available.
Function
Display
Description
Sunm
Sum
C = (A+B+P)*F
Dif
Difference
C = (A-B+P)*F
difabs
Absolute difference
C = ((Absolute value of (A-B))+P)*F
AVg
Average
C = (((A+B)/2)+P)*F
nmulti
Multiplication
C = ((A*B)+P)*F
DiVide
Divide
C = ((A/B)+P)*F
Hi-ab
Max of A or B
C = ((High value of channel A or B)+P)*F
Lo-ab
Min of A or B
C = ((Low value of channel A or B)+P)*F
Drauw
Draw
C = ((A/B)-1)*F
uw Avg
Weighted avg.
C = ((B-A)*F)+A
ratio
Ratio
C = (A/B)*F
Ratio2
Ratio 2
C = ((B-A)/A)+P*F
Concen
Concentration
C = (A/(A+B))*F
Sunm t
Sum total
C = (tA+tB+P)*F
Sunmgt
Sum grand total
C = (GtA+GtB+P)*F
Dif t
Difference of total
C = (tA-tB+P)*F
Dif gt
Diff. of grand total
C = (GtA-GtB+P)*F
Tratio
Total ratio
C = (tA/tB)*F
t-rat2
Total ratio 2
C = ((tB-tA)/tA)*F
T pct
Total percent
C = (tA/(tA+tB))*100

Math Constants (Const)

The Math Constants menu is used to set the constants used in channel C math. The math functions include adder constant P, and factor constant F.
The Adder constant (P) may be set from -99.999 to
999.999.
The Factor constant (F) may be set from 0.001 to
999.999.
The chart on page 51 details the math functions that may be selected in the Math Function menu.

Low-Flow Cutoff (CutofF)

The low-flow cutoff feature allows the meter to be programmed so that the often-unsteady output from a differential pressure transmitter, at low flow rates, always displays zero on the meter. The low-flow cutoff for each channel is programmed independently. The cutoff can be disabled to display negative values.
The cutoff value may be programmed from 0.1 to
999999. The meter will display zero below the cutoff
value. Programming the cutoff value to zero disables the cutoff feature. The cutoff can be disabled to display negative values.
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Totalizer Count Up/Down (Count)

The totalizer count up/down menu may be used to program the total and grand total to either count up from 0 when reset or count down from a programmed value when reset. Total and grand total may have their countdown numbers programmed individually from 0 to 999999.

Analog Output Programming (AoutPr)

The Analog Output Programming menu is used to program the behavior of the 4-20 mA outputs. The following parameters and functions are programmed in this menu for each analog output:
1. Source: Source for generating the 4-20 mA output
2. Overrange: Analog output value with display in overrange condition
3. Underrange: Analog output value with display in underrange condition
4. Max: Maximum analog output value allowed regardless of input
5. Min: Minimum analog output value allowed regardless of input
6. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output
Analog Output Source
The analog output source can be based on either of the input channel rate, total, or grand totals (Ch-A, Ch-B), the math channel (Ch-C), maximum stored value of either input channel (Hi-A, Hi-B), minimum stored value of either input channel (Lo-A, Lo-B), maximum or minimum of A and B (Hi-AB, Lo-AB), relay set points, or the Modbus input.
To base an analog output on the rate, total, or grand total of channels A or B, select the channel in the Analog Output Source menu. Then select the rate, total, or grand total as the source reference for the output, and program the output scale.
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Programmable Function Keys User Menu (user)

The User menu allows the user to assign the front panel function keys F1, F2, and F3, the digital input F4 (located on the input signal connector), and four digital inputs (located on the digital I/O connector) to access most of the menus or to activate certain functions immediately (e.g. reset totals, reset max & min, hold relay states, etc.). This allows the meter to be greatly customized for use in specialized applications.
The four digital outputs can be assigned to a number of actions and functions executed by the meter (i.e. alarms, relay acknowledgement, reset totals, reset max, min, or max & min, tare, and reset tare). The digital outputs can be used to trigger external alarms or lights to indicate these specific events.
Function Keys & Digital I/O Available Settings
Refer to the following table for descriptions of each available function key or digital I/O setting.
Function Keys & Digital I/O Available Settings
Display
Description
Rst Hi
Reset the stored maximum display values for all channels
Rst Lo
Reset the stored minimum display values for all channels
Rst HL
Reset the stored maximum & minimum display values for all channels
relay
Directly access the relay menu
Set 1*
Directly access the set point menu for relay 1 (*through 4)
Rly d
Disable all relays until a button assigned to enable relays (Rly E) is pressed
Rly E
Enable all relays to function as they have been programmed
O Hold
Hold current relay states and analog output as they are until a button assigned to enable relays (Rly E) is pressed
d Hold
Hold the current display value, relay states, and analog output momentarily while the function key or digital input is active. The process value will continue to be calculated in the background.
Function Keys & Digital I/O Available Settings
Display
Description
D AbC
Scrolls values for A, B & C when activated. Keeps the last value for 10 seconds and then it returns to its assignment. Values are displayed on display line 1 and the corresponding channel and units on display line 2.
d tot
Scrolls through totals for channels A, B, and C (which is the sum of A and B). Values are displayed on display line 1.
D gtot
Scrolls through grand totals for channels A, B, and C (which is the sum of A and B). Values are displayed on display line 1.
Ln1 Hi
Display maximum channel A display value on line 1
Ln1 Lo
Display minimum channel A display value on line 1
Ln1 HL
Display maximum & minimum channel A display values on line 1
Ln2 Hi
Display maximum channel B display value on line 2
Ln2 Lo
Display minimum Channel B display value on line 2
Ln2 HL
Display maximum & minimum channel B display values on line 2
Ln2 HC
Display minimum channel C display value on line 2
Ln2 HC
Display maximum & minimum channel C display values on line 2
LitHLC
Display maximum channel C display value on line 2
F On 1*
Force relay 1 (*through 4) into the on state. This function is used in conjunction with a digital input to achieve interlock functionality. See
Setting Up the Interlock Relay (Force On) Feature on page 44 for details
about interlock relays.
Contrl
Directly access the manual control menu
disabl
Disable the selected function key or digital I/O
up-d a
Total count mode direction control for channel A
up-d b
Total count mode direction control for channel B
AcH
Acknowledge all active relays that are in a manual operation mode such as auto-manual or latching
Reset
Directly access the reset menu
Rst t
Reset totals for all channels
Rst gt
Reset grand totals for all channels
Rst ta
Reset total for channel A
Rst ga
Reset grand total for channel A
Rst tb
Reset total for channel B
Rst gb
Reset grand total for channel B
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Function Keys & Digital I/O Available Settings
Display
Description
nmenu
Mimic the menu button functionality (digital inputs only)
rigHt
Mimic the right arrow/F1 button functionality (digital inputs only)
up
Mimic the up arrow/F2 button functionality (digital inputs only)
Enter
Mimic the enter/F3 button functionality (digital inputs only)
Alnm 1*
Provide indication when alarm 1 (*through 4) has been triggered (digital outputs only)
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Meter Operation

The meter accepts two input channels (A and B) of either pulses (e.g. ±40 mV to ± 8V), square wave (0-5 V, 0-12 V, or 0-24 V), open collector NPN, PNP, TTL, or switch contact signals and displays these signals in engineering units from -99999 to 999999. (e.g. a 0-1000 Hz signal could be displayed as
-50.000 to 50.000).
Digital inputs and quadrature inputs can be accepted for bi-directional flow on channel A and B. Quadrature inputs can also be accepted, using channels A and B to calculate a single bi-directional flow.
A totalizer can be programmed to count the scaled engineering units, interpreting it as count per second, minute, hour, or day. The scaled rate and total for each channel can be displayed on the top or bottom displays.
A math function channel (C) is available to perform operations on channel A and B rates or totals, with adder and factor constants, and display the results. Engineering units or tags may be displayed with these three channels.
The dual-line display can be customized by the user. Typically, display line 1 is used to display the math channel C, while line 2 is used to alternate between displaying input channels A and B rate or total.
Additionally, the meter can be set up to display any input or math channel on display line 1 and a unit or tag on line 2. The relays and analog output can be programmed to operate based on any input rate or total, or the math function channel.

Button Operation

Button Symbol
Description
Press to enter or exit Programming Mode, view settings, or exit max/min readings
Press to reset max/min readings or other parameter/function assigned through the User menu
Press to display max/min readings or other parameter/function assigned through the User menu
Press to acknowledge relays or other parameters/function assigned through the User menu

Function Keys Operation

During operation, the programmable function keys operate according to the way they have been programmed in the Advanced Features – User menu. See Programmable Function Keys User Menu (user) on page 53 for details.
The table above shows the factory default settings for F1, F2, and F3.

Digital Inputs Operation

Five (5) digital inputs, F4, DI-1 to DI-4, come standard on the meter. These digital inputs are programmed identically to function keys F1, F2, and F3. The inputs are triggered with a contact closure to +5 in the case of digital inputs 1-4 or with an active high signal, see Digital I/O Connections on page 21 for details. The F4 is triggered with a contact closure to COM or with an active low signal. During operation, digital inputs operate according to the way they are programmed in the Advanced Features – User menu. See Programmable Function Keys User Menu (user) on page 53 for details.

Maximum/Minimum Readings

The max & min readings (peak & valley) reached by the process can be displayed either continuously or momentary:
1. Display briefly by assigning to the F1-F3 function keys or to the digital inputs in the User menu.
2. Display continuously by assigning either display to max/min through the Display menu.
Any of the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min readings. The meters are set at the factory to display the max/min reading by pressing the Up arrow/F2 button and to use the Right arrow/F1 button to reset the max/min.
To display max and min channel A reading using function key with factory defaults:
1. Press Up arrow/F2 button to display the maximum and minimum reading of channel A since the last reset/power-up.
2. To reset max/min press Right arrow/F1 button. The max & min displays are reset to actual values.
3. Press Menu to exit max/min display reading.
MENU
MENU
RIGHT
RESET
F1
UP
MAX
F2
ACK
ENTER
F3
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Troubleshooting

The rugged design and the user-friendly interface of the meter should make it unusual for the installer or operator to refer to this section of the manual. However, due to the many features and functions of
the meter, it’s possible that the setup of the meter
does not agree with what an operator expects to see. If the meter is not working as expected, refer to the
Diagnostics menu and recommendations below.

Diagnostics Menu (diag)

The Diagnostics menu is located in the Advanced Features menu. To access the Diagnostics menu see Advanced Features Menu, page 47.
For a description of the diagnostic messages, see Advanced Features Menu & Display Messages, page
47.

Testing the Display LEDs

To test all LEDs on the display:
1. Go to the Diagnostics menu (diAG) and press Enter button.
2. Press Up arrow button and scroll to LED Test menu (led t)
3. Press the Enter button to activate the LED Test. The meter will cycle through all digits, decimal points, and relay indicators to enable the operator to check that all LEDs are functioning properly.
4. Press the Enter button again to access the Information menu (info) or press the Menu button to return to Run Mode.

Determining Software Version

To determine the software version of a meter:
1. Go to the Diagnostics menu (diAG) and press Enter button.
2. Press Up arrow button and scroll to Information menu (Info).
3. Press Enter to access the software number (SFT) and version (UER) information. Write down the information as it is displayed. Continue pressing Enter until all the information is displayed.
4. The meter returns to Run Mode after displaying all the settings.

Reset Meter to Factory Defaults

When the parameters have been changed in a way
that is difficult to determine what’s happening, it might
be better to start the setup process from the factory defaults.
Instructions to load factory defaults:
1. Enter the Advanced Features menu. See Advanced Features Menu, page 47.
2. Press Up arrow to go to Diagnostics menu
3. Press and hold Right arrow for three seconds, press Enter when display flashes reset. Note: If Enter is not pressed within three seconds, the display returns to Run Mode.
4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory default settings.
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Factory Defaults & User Settings

The following table shows the factory setting for most of the programmable parameters on the meter.
Factory Defaults & User Settings
Parameter
Display
Default Setting
Input type
Input
Total, channel A
Ch-A
Yes
Total, channel B
Ch-B
Yes
Units
units
Rate unit, channel A
Ch-A
HZ-A
Rate unit, channel B
Ch-B
HZ-b
Unit, channel C
Ch-C
HZ-C
Total unit, channel A
Tot-A
tot-A
Grand total unit, ch-A
Gtot-A
Gtot-A
Total unit, channel B
Tot-b
tot-b
Grand total unit, ch-B
Gtot-b
Gtot-B
Decimal Point
Dec pt
Rate, channel A
rate
1
Total, channel A
Total
1
Grand total, channel A
gtotal
0
Rate, channel B
rate
1
Total, channel B
Total
1
Grand total, channel B
gtotal
0
Channel C
Ch-C
1
Input Calibration
InCAL
Number of points
No pts
Number of points, ch-A
Ch-A
2
Number of points, ch-B
Ch-B
2
K-Factor, channel A
Fact-A
1.000
K-Factor, channel B
Fact-B
1.000
Total setup
Tsetup
Time base, channel A
Tbase
Sec
Total conversion factor, Ch-A
T CF
1.000
Grand total conversion factor, Ch-A
Gt CF
1.000 Time base, channel B
Tbase
Sec
Total conversion factor, Ch-B
T CF
1.000
Grand total conversion factor, Ch-B
Gt CF
1.000 Total reset
Treset
Total reset, channel A
T rst
Manual
Grand total reset, Ch-A
Gt rst
Manual
Total reset, channel B
T rst
Manual
Grand total reset, Ch-B
Gt rst
Manual
Display assignment
Dsplay
Factory Defaults & User Settings
Parameter
Display
Default Setting
Display line 1
D Ch-A
Channel A
Display line 2
d Ch-B
Channel B
Display intensity
d-Inty
6
Relay
Relay
Relay 1 assignment
Ch-A
Channel A total
Relay 1 action
Act 1
Automatic
Relay 1 set point
Set 1
100.0
Relay 2 assignment
Ch-A
Channel A total
Relay 2 action
Act 2
Automatic
Relay 2 set point
Set 2
200.0
Relay 3 assignment
Ch-A
Channel A rate
Relay 3 action
Act 3
Automatic
Relay 3 set point
Set 3
300.0
Relay 3 reset point
RSt 3
250.0
Relay 4 assignment
Ch-A
Channel A rate
Relay 4 action
Act 4
Automatic
Relay 4 set point
Set 4
400.0
Relay 4 reset point
RSt 4
350.0
Fail-safe relay 1 to 4
Fls 1
Off
On delay relay 1 to 4
On 1
0.0 sec
Off delay relay 1 to 4
Off 1
0.0 sec
Analog output
Aout
Display 1 analog out
Dis 1
0.0
Output 1 value
Out 1
4.000 mA
Display 2 analog out
Dis 2
1000.0
Output 2 value
Out 2
20.000 mA
Source analog output
Source
Channel A
Overrange output
O-rang
21.000 mA
Underrange output
u-rang
3.000 mA
Maximum output
nmAx
23.000 mA
Minimum output
nmin
3.000 mA
Filter
Filter
Filter, channel A
Ch-A
High speed
Filter, channel B
Ch-B
High speed
Round
Round
1
Cutoff
Cutoff
Cutoff value, channel A
Ch-a
0.0 (disabled)
Cutoff value, channel B
Ch-b
0.0 (disabled)
Serial
Serial
Slave ID (Address)
SlavId
247
Baud rate
baud
9600
Transmit delay
Tr dly
50 ms
Parity
Parity
Even
Byte-to-byte timeout
t-byt
010 (0.1 sec)
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Factory Defaults & User Settings
Parameter
Display
Default Setting
Math
nmath
Math, channel C
Sunm
Sum
Adder (constant P)
Adder
0.000
Factor (constant F)
Factor
1
User
user
F1 function key
F1
Reset max & min
F2 function key
F2
Line 1 Max & Min
F3 function key
F3
Acknowledge relays
F4 function (digital input)
F4
Acknowledge relays Digital input 1
DI 1
Menu
Digital input 2
DI 2
Right arrow
Digital input 3
DI 3
Up arrow
Digital input 4
DI 4
Enter
Digital output 1
DO 1
Alarm 1
Digital output 2
DO 2
Alarm 2
Digital output 3
DO 3
Alarm 3
Digital output 4
DO 4
Alarm 4
Password
pass
Password 1
Pass 1
000000 (unlocked)
Password 2
Pass 2
000000 (unlocked)
Password 3
Pass 3
000000 (unlocked)
Total
Total
000000 (unlocked)
Grand total
gtotal
000000 (unlocked)
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Helios PD2-6363 Dual Pulse Input Rate/Totalizer
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Troubleshooting Tips

This meter is a highly sophisticated instrument with an extensive list of features and capabilities. If the front panel buttons are used to program the meter, it may be a difficult task to keep everything straight. That is why we strongly recommend the use of the free MeterView Pro software for all programming activities. A USB cable is provided with the meter for programming with MeterView Pro software.
If you have programmed the meter with the front panel buttons and it is not working as intended, try re-programming the meter using MeterView Pro software.
Symptom
Check/Action
No display at all
Check power at power connector
Not able to change setup or programming, Locd is displayed
Meter is password-protected, enter correct six-digit password to unlock
Controller does not respond to input change
Check:
1. The input signal type and make sure it corresponds with the position of the input switch.
2. The input signal voltage level
3. If a Low-Flow Cutoff has been programmed, the controller will display zero below that point, regardless of the input.
Controller displays error message during calibration (Error)
Check:
1. Signal connections
2. Input switch position
3. Minimum input span requirements
Controller displays
999999
-99999
Check:
1. The input signal frequency
2. K-Factor value or scaling, time base, and decimal point
Display is unstable
Check:
1. Input signal stability and value
2. Display scaling vs. input signal
3. Increase the gate settings to average more pulses
Display reading is not accurate
Check:
1. K-Factor value provided by the flowmeter manufacturer
2. Time base selected
3. Scaling or calibration
Display response is too slow
Check: Filter and gate values
Display does not respond to input changes, reading a fixed number
Check: Display assignment, it might be displaying max, min, or set point.
Display alternates between
4. Hi and a number
5. Lo and a number
Press Menu to exit max/min display readings.
Relay operation is reversed
Check:
1. Fail-safe in Setup menu
2. Wiring of relay contacts
Relay and status LED do not respond to signal
Check:
1. Relay action in Setup menu
2. Set and reset points
Flashing relay status LEDs
Relays in manual control mode or relay interlock switches opened.
Meter not communicating with application programs
Check:
1. Serial adapter and cable
2. Serial settings
3. Meter address and baud rate
If the display locks up or the meter does not respond at all
Cycle the power to reboot the microprocessor.
Other symptoms not described above
Call Technical Support for assistance.
Note: Certain sequences of events can cause unexpected results. To solve these issues, it is best to start fresh from factory defaults and use the manual as a step by step programming guide, rather than a random approach to programming. To reset the meter to factory defaults, see Reset Meter to Factory Defaults on page 56. In addition, for best results, we recommend using the free MeterView Pro software for all programming needs.
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PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA Tel (800) 343-10 01 • Fax (508) 655-8990
www.predig.com
LIM2-6363_D
SFT065 Ver 4.010 & up
08/21
Contact Precision Digital
Technical Support
Call: (800) 610-5239 or (508) 655-7300 Fax: (508) 655-8990 Email: [email protected]
Sales Support
Call: (800) 343-1001 or (508) 655-7300 Fax: (508) 655-8990 Email: [email protected]
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