Page 1
Helios Large Display Pulse Input Rate/Totalizer
Instruction Manual PD2-6300
Flow Rate/Totalizer
USB Install
• Large 1.80" Digits
• Dual-Line 6-Digit Display
• Readable from up to 100 Feet (30 Meters) Away
• Superluminous Sunlight Readable Display
• NEMA 4X, IP65 Rated Field Mountable Enclosure
• Operating Temperature Range of -40 to 65°C (-40 to 150°F)
• Pulse, Open Collector, NPN, PNP, TTL, Switch Contact,
Sine Wave (Coil), Square Wave Inputs
• Gate Function for Rate Display of Slow Pulse Rates
• Input Power Options Include 85-265 VAC or 12-24 VDC
• Isolated 24 VDC Transmitter Power Supply
• Rate Displayed as Units per Second, Minute, Hour, or Day
• 9-Digit Totalizer with Total Overflow Feature
• 2 or 4 Relays + Isolated 4-20 mA Output Options
• Onboard USB & RS-485 Serial Communications
• Modbus® RTU Communication Protocol Standard
• Program the Meter from a PC with onboard USB and MeterView Pro
Precision Digital Corporation
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Caution: Read complete
instructions prior to installation and
operation of the meter.
Warning: Risk of electric shock or
personal injury.
Warning!
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 their
own risk. Precision Digital Corporation shall not be held
liable for damages resulting from such improper use.
!
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.
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.
Registered Trademarks
MeterView® Pro is a registered trademark of Precision Digital Corporation. All other
trademarks mentioned in this document are the property of their respective owners.
© 2018 Precision Digital Corporation. All rights reserved.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Table of Contents
Table of Contents .................................................... 3
Table of Figures ...................................................... 4
Introduction.............................................................. 4
Ordering Information ............................................... 5
Specifications .......................................................... 5
General ....................................................................... 5
Rate Input.................................................................... 6
Rate/Totalizer .............................................................. 6
Relays ......................................................................... 7
Isolated 4-20 mA Transmitter Output .......................... 7
RS485 Serial Communications Terminal .................... 8
Modbus® RTU Serial Communications........................ 8
Digital Input & Output Terminal ................................... 8
Compliance Information .......................................... 9
Safety .......................................................................... 9
Safety Information .................................................10
Installation .............................................................10
Unpacking ................................................................. 10
Wall Mounting Instructions ........................................ 11
Mounting Dimensions ............................................ 11
Pipe Mounting Instructions ........................................ 12
Transmitter Supply Voltage Selection (P+, P-) .......... 13
Connections .............................................................. 13
Connectors Labeling ............................................. 14
Power Connections ............................................... 14
Signal Connections ............................................... 15
Modbus RTU Serial Communications ................... 15
Relay Connections ................................................ 15
Switching Inductive Loads ..................................... 16
RS485 Output Connections................................... 17
Digital I/O Connections ......................................... 19
F4 Digital Input Connections ................................. 19
4-20 mA Output Connections ................................ 20
Analog Output Transmitter Power Supply ............. 20
Interlock Relay Feature ......................................... 20
Setup and Programming .......................................21
Overview ................................................................... 21
Programming Buttons and Status LED Indicators ..... 22
MeterView® Pro Software .......................................... 23
MeterView Pro Installation..................................... 23
Display Functions & Messages ................................. 24
Main Menu ................................................................ 27
Setting Numeric Values ............................................. 27
Setting up the Rate/Totalizer Meter (setup) ............. 28
Setting the Input Signal (Input) ............................ 28
Setting the Totalizer Features (total) .................. 28
Setting the Input Units or Custom Tags (units) ... 29
Setting the Decimal Point (dEc pt) ....................... 29
Programming the Rate/Totalizer (prog) ................ 30
Setting the Display Parameter & Intensity (dsplay)
.............................................................................. 33
Setting the Relay Operation (relay) ......................... 34
Relay Assignment (Assign) .................................. 34
Setting the Relay Action ........................................ 35
Programming Set and Reset Points ...................... 35
Setting Fail-Safe Operation ................................... 35
Programming Time Delay ...................................... 35
Relay and Alarm Operation Diagrams ....................... 36
High Alarm Operation (Set > Reset) ...................... 36
Low Alarm Operation (Set < Reset) ....................... 36
High Alarm with Fail-Safe Operation (Set > Reset)37
Low Alarm with Fail-Safe Operation (Set < Reset) 37
Pump Alternation Control Operation ...................... 37
Relay Sampling Operation ..................................... 38
Signal Loss or Loop Break Relay Operation .......... 38
Time Delay Operation ............................................ 38
Relay Operation Details ............................................. 39
Overview ............................................................... 39
Relays Auto Initialization ....................................... 39
Fail-Safe Operation ............................................... 39
Front Panel LEDs .................................................. 39
Latching and Non-Latching Relay Operation ......... 40
Non-Latching Relay (Auto) .................................... 40
Non-Latching Relay (A-man) ............................... 40
Latching Relay (LatcH).......................................... 40
Latching Relay (Lt-Clr) ........................................ 40
Acknowledging Relays .......................................... 41
Pump Alternation Control Applications (Altern) ... 41
Setting up the Interlock Relay (Force On) Feature 43
Scaling the 4-20 mA Analog Output (Aout) ............... 44
Reset Menu (reset) .................................................. 44
Control Menu (Contrl) .............................................. 44
Setting up the Password (pass) ................................ 45
Protecting or Locking the Meter ............................. 45
Total Reset Password & Non-Resettable Total ..... 45
Making Changes to a Password Protected Meter.. 46
Disabling Password Protection .............................. 46
Advanced Features Menu ......................................... 47
Advanced Features Menu & Display Messages .... 47
Rounding Feature (round) ..................................... 50
Modbus RTU Serial Communications (serial) .... 50
Select Menu (SElect) ........................................... 51
Signal Input Conditioning (Functn) ....................... 51
Low-Flow Cutoff (CutofF) ..................................... 52
Analog Output Programming (AoutPr) .................. 52
Programmable Function Keys User Menu (user) .. 52
Meter Operation .................................................... 54
Button Operation ....................................................... 54
Function Key Operation ............................................. 54
Digital Input Operation ............................................... 54
Maximum/Minimum Readings ................................... 55
Troubleshooting .................................................... 55
Diagnostics Menu (diag) ........................................... 55
Determining Software Version ............................... 56
Reset Meter to Factory Defaults ................................ 56
Factory Defaults & User Settings........................... 57
Troubleshooting Tips ................................................. 59
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Table of Figures
Figure 1. Meter Mounting Holes ............................11
Figure 2. Meter Dimensions - Side View ...............11
Figure 3. Meter Dimensions – Front View .............11
Figure 4. Vertical Pipe Mount Assembly ...............12
Figure 5. Horizontal Pipe Mount Assembly ...........12
Figure 6. Transmitter Supply Voltage Selection....13
Figure 7. Connector Labeling for Fully Loaded PD2-
6300 ......................................................................14
Figure 8. Power Connections ................................14
Figure 9: Flowmeter Powered by Internal Power
Supply ...................................................................15
Figure 10: Flowmeter Powered by External Supply
..............................................................................15
Figure 11: Self-Powered Magnetic Pickup Coil
Flowmeter..............................................................15
Figure 12: NPN open Collector Input ....................15
Figure 13: PNP Sensor Powered by Internal Supply
.............................................................................. 15
Figure 14: Switch Input Connections .................... 15
Figure 15. Relay Connections .............................. 15
Figure 16. AC and DC Loads Protection .............. 16
Figure 17. Low Voltage DC Loads Protection ...... 16
Figure 18. RS-422 or RS-485 Wiring .................... 17
Figure 19. RS-485 Two-Wire Multi-Drop Wiring ... 18
Figure 20. Connections for RS485 Connector to
Serial Converter .................................................... 18
Figure 21. Three-Wire RS485 Connection ........... 18
Figure 22. Digital Input and Output Connections . 19
Figure 23. F4 Digital Input Connections ............... 19
Figure 24. 4-20 mA Output Connections .............. 20
Figure 25. Interlock Connections .......................... 20
Figure 26. Acknowledge Relays w/Function Key or
Digital Input ........................................................... 41
Introduction
The Helios PD2-6300 is a multi-purpose, easy to use, large-display pulse input rate/totalizer
ideal for flow rate, total, and control applications. It features large 1.8 inch superluminous LED
digits, which can be read from up to 100 feet away. It is housed in a water-resistant, field
mountable NEMA 4X/IP65 rated enclosure for convenient indoor and outdoor installation.
The meter accepts pulse (e.g. 40 mVp-p to 8 Vp-p), 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 rate, as
measured by the flowmeter, is automatically aggregated into a cumulative total and grand total
which can be displayed simultaneously with the rate. Three of the programming buttons can be
set for custom operation.
A fully loaded Helios PD2-6300 meter comes with four (4) SPDT relays, a 4 20 mA output, two
24 VDC power supplies, five (5) digital inputs and four (4) digital outputs, and RS485 serial
communications. The two or 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.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
85-265 VAC Model
12-24 VDC Model
Options Installed
PD2-6300-6H0
PD2-6300-7H0
No Options
PD2-6300-6H7
PD2-6300-7H7
4 relays & 4-20 mA output
Model
Description
PDA6260
Pipe Mounting Kit
PDA7485-I
RS-232 to RS-422/485 isolated converter
PDA7485-N
RS-232 to RS-422/485 non-isolated converter
PDAPLUG2
Plastic Conduit Plug
PDX6901
Suppressor (snubber): 0.01 µF/470 , 250 VAC
Display
Main display: 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
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)
Overrange
Display flashes 999999
Underrange
Display flashes -99999
Display
Assignment
Display lines 1 & 2 may be assigned
to rate, total, grand total, alternate
rate & total, max/min, units (lower
display only), set points, Modbus
input, & more.
Programming
Methods
Four programming buttons, digital
inputs, PC and MeterView Pro
software, or Modbus registers.
Noise Filter
Programmable from 2 to 199 (0 will
disable filter)
Filter Bypass
Programmable from 0.1 to 99.9% of
calibrated span
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.
Password
Three programmable passwords
restrict modification of programmed
settings.
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.
Power Options
85-265 VAC 50/60 Hz, 90-265 VDC,
20 W max or 12-24 VDC 10%, 15 W
max
Powered over USB for configuration
only.
Isolated
Transmitter
Power Supply
Terminals P+ & P-: 24 VDC 10%. 1224 VDC powered models selectable for
24, 10, or 5 VDC supply (internal P+/Pswitch).
85-265 VAC models rated @ 200 mA
max, 12-24 VDC powered models rated
@ 100 mA max, @ 50 mA max for 5 or
10 VDC supply.
Non-Volatile
Memory
All programmed settings are stored
in non-volatile memory for a
minimum of ten years if power is lost.
Fuse
Required external fuse: UL
Recognized, 5 A max, slow blow; up
to 6 meters may share one 5 A fuse
Normal Mode
Rejection
Greater than 60 dB at 50/60 Hz
Ordering Information
Standard Models
Accessories
Specifications
Except where noted all specifications apply to operation at +25°C.
General
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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
150°F (-40 to 65°C)
Storage temperature range: -40 to
185°F (-40 to 85°C)
Relative humidity: 0 to 90% noncondensing
Connections
Removable and integrated screw
terminal blocks accept 12 to 22 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 screwing meter
into wall. See Wall Mounting
Instructions on page 11 for additional
details.
Pipe Mounting: Optional pipe
mounting kit (PDA6260) allows for
pipe mounting. Sold separately. See
Pipe Mounting Instructions on page
12 for additional details.
Tightening
Torque
Removable Screw Terminals: 5 lb-
in (0.56 Nm)
Digital I/O and RS485 Terminals:
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
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 pullup to 5 V @ 30 kHz; NPN or PNP
transistor, switch contact 4.7 k pullup to 5 V @ 40 Hz; Modbus PV
(Slave)
Low Voltage
Mag Pickup
(Isolated)
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.
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
Low-Flow
Cutoff
0-999999 (0 disables cutoff function)
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,
internal calibration, 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 10 Hz.
An error message will appear if the
input 1 and input 2 signals are too
close together.
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
F4 Digital
Input Contacts
3.3 VDC on contact. Connect
normally open contacts across F4 to
COM.
F4 Digital
Input
Logic Levels
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Display
Assignment
The Upper and Lower displays may
be assigned to rate, total, grand total,
alternate rate/total, alternate
rate/grand total, set points, alternate
rate/units, alternate total/units,
alternate grand total/units, display Hi,
display Lo, display Hi/Lo, display
modbus, display units (lower display)
and display Off (lower display).
Rate Display
Indication
-99999 to 999999, lead zero
blanking. “R” LED illuminates while
displaying rate.
Rate Input
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Rate/Totalizer
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Total Display
& Total
Overflow
0 to 999,999; automatic lead zero
blanking. “T” LED is illuminated while
displaying total or grand total.
Up to 999,999,999 with total-overflow
feature. “oF” is displayed to the left of
total overflow and ▲ LED is
illuminated.
Alternating
Display
Either display may be programmed
to alternate between rate and total or
rate and grand total every 10
seconds.
Total Decimal
Point
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.
Totalizer
Calculates total 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.
Totalizer
Rollover
Totalizer rolls over when display
exceeds 999,999,999. Relay status
reflects display.
Total Overflow
Override
Program total reset for automatic
with 0.1 second delay and set point 1
for 999,999
Totalizer
Presets
Up to eight, user selectable under
setup menu. Any set point can be
assigned to total and may be
programmed anywhere in the range
of the meter for total alarm indication.
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.
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.
Total Reset
Password
Total and grand total passwords may
be entered to prevent resetting the
total or grand total from the front
panel.
NonResettable
Total
The grand total can be programmed
as a non-resettable total by entering
the password “050873”.
Caution!
Once the Grand Total has
been programmed as
“non-resettable” the
feature cannot be
disabled.
Rating
2 or 4 SPDT (Form C) internal and/or
4 SPST (Form A) external; 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 page 16 for
details.
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/without clear
Pump alternation control (2 to 4
relays)
Sampling (based on time)
Off (disable unused relays and
enable Interlock feature)
Manual on/off control mode
Relay Reset
User selectable via front panel
buttons or digital inputs
1. Automatic reset only (nonlatching), 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 (latching)
Note: Front panel button 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.
Output Source
Process variable (PV), max, min, 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
!
Relays
Isolated 4-20 mA Transmitter Output
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Accuracy ± 0.1% of span ± 0.004 mA
Temperature
Drift
Isolated
Transmitter
Power Supply
External Loop
Power Supply
Output Loop
Resistance
35 VDC
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.
Terminals I+ & R: 24 VDC 10%. May
be used to power the 4-20 mA output
or other devices. Refer to Figure 24
on page 20.
All models rated @ 40 mA max.
35 VDC maximum
Power supply Minimum Maximum
24 VDC 10 700
100 1200
(external)
RS485 Serial Communications Terminal
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
Data 8 bit (1 start bit, 1 or 2 stop bits)
Programmable between 0 and 199
ms
Parity Even, Odd, or None with 1 or 2 stop
Byte-To-Byte
Timeout
Turn Around
Delay
Note: Refer to the Modbus Register
for details.
bits
0.01 – 2.54 second
Less than 2 ms (fixed)
Digital Input & Output Terminal
Channels 4 digital inputs & 4 digital outputs
Digital Input
Logic High
Digital Input
Logic Low
Digital Output
Logic High
Digital Output
Logic Low
Source
Current
Sink Current 1.5 mA minimum input current
+5 V Terminal
3 to 5 VDC
0 to 1.25 VDC
3.1 to 3.3 VDC
0 to 0.4 VDC
10 mA maximum output current
To be used as pull-up for digital
inputs only.
Connect normally open pushbuttons
across +5 V & DI 1-4.
DO NOT use +5 V
terminal to power
WARNING!
external devices.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
UL & C-UL Listed
USA & Canada
UL 508 Industrial Control Equipment (United States),
C22.2 No. 142 (Canadian National Standard)
UL File Number
E160849
Front Panel
UL Type 4X, NEMA 4X, IP65
Low Voltage Directive
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
Compliance Information
Safety
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Caution: Read complete instructions
prior to installation and operation of the
meter.
Warning: Risk of electric shock or
personal injury.
Warning!
Hazardous voltages exist within enclosure.
Installation and service should be performed only by trained
service personnel.
!
Safety Information
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 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.
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 onboard digital I/O, RS-485 serial communications, and M-Link functionality.
Instructions are provided for changing the transmitter power supply to output 5 or 10 VDC instead
of 24 VDC, see page 12.
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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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Figure 2. Meter
Dimensions - Side View
Figure 3. Meter Dimensions – Front View
2.63" (67 mm)
4.77"
(121.2 mm)
Mounting Hole Mounting Hole
Front Door
Panel Screw
10.63" (270 mm)
12.59" (319.7 mm)
10.43" (265 mm)
9.8" (249 mm)
11.14" (283 mm)
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 front door panel. To mount the meter to a wall, follow these
instructions.
1. 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 the image to the
right) on the wall.
2. Using a drill bit slightly smaller than
the girth of the mounting screws,
pre-drill holes at the mounting
locations previously marked.
3. 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
Mounting Dimensions
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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.
1. 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.
2. Using the provided nuts and U-bolts,
secure the mounting plates to the pipe
enough torque such that the meter
cannot be moved up or down (or side to
side).
Figure 4. Vertical Pipe Mount Assembly
Figure 5. Horizontal Pipe Mount Assembly
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Caution
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.
MENU RESET
F1
MAX
F2
ENT ER
F3
Transmitter 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 transmitter or sensor.
If the transmitter requires 5 or 10 VDC excitation, the switch labeled P+/P- must be configured
accordingly.
To access the voltage selection jumper:
1. Unplug the meter power.
2. Unscrew and open the front 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 transmitter excitation.
Figure 6. Transmitter Supply Voltage Selection
Connections
All connections are made to screw terminal connectors located under the front door panel. Remove the
single securing screw in order to access the wiring terminals.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Warning!
Do not connect any equipment other than Precision Digital’s
expansion modules, cables, or meters 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 onboard digital I/O, RS-485
serial communications, and M-Link functionality.
MA OUT
21 3
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RELA Y4RELA Y3
43 6521
RELA Y2RELA Y1
MENU RESET
F1
MAX
F2
ENTER
F3
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
Connectors Labeling
The connectors’ label, affixed to the inside of the lower door panel, shows the location of all connectors
available with requested configuration.
Figure 7. Connector Labeling for Fully Loaded PD2-6300
Power Connections
Power connections are made to a two-terminal connector labeled POWER on Figure 7 on page 14. The
meter will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring
convention.
Figure 8. Power Connections
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Figure 9: Flowmeter Powered by Internal
Power Supply
Figure 10: Flowmeter Powered by External
Supply
Figure 11: Self-Powered Magnetic Pickup
Coil Flowmeter
Figure 12: NPN open Collector Input
Figure 13: PNP Sensor Powered by
Internal Supply
Figure 14: Switch Input Connections
43 6521
RELAY4RELAY3
43 6521
RELAY2RELAY1
Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 7. The COM
(common) terminal is the return for the input signals.
The following figures show examples of signal connections.
Setup and programming is performed through the front panel buttons.
Modbus RTU Serial Communications
Serial communications connection can be made to the onboard RS485 terminal block or USB connector
shown in Figure 7. If RS232 is required, an RS485 to RS232 adapter (PDA7485) may be used. See
Ordering Information on page 5 for additional information.
Relay Connections
Relay connections are made to two sixterminal connectors labeled
RELAY1 – RELAY4 on Figure 7. 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.
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Figure 15. Relay Connections
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
C
R
C
R
Use a diode with a reverse
breakdown voltage two to three
times the circuit voltage and
forward current at least as large
as the load current.
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 resistor-capacitor (RC) networks assembled by the user or purchased
as complete assemblies. Refer to the following circuits for RC network assembly and installation:
Figure 16. 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.
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.
16
Figure 17. Low Voltage DC Loads Protection
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
RS485 Output Connections
An RS-485 connector is provided for the use of advanced Modbus®
serial communications. This connector converts the serial output of
the meter to balanced, full or half-duplex RS-485 signals. It has a
removable screw terminal connector for the RS-485 terminals which
includes Transmit Data (DO) and (/DO), Receive Data (DI) and (/DI),
and Signal Ground. Baud rates are adjustable and handled by the
meter (see Modbus RTU Serial Communications on page 50 for
more information).
The RS-485 connector has three diagnostic LEDs: a Power (PWR)
LED to show when the adapter is powered properly, a Transmit Data (TX) LED to show when the adapter
is sending data out from the PC side, and a Receive Data (RX) LED to show when the adapter is
receiving data from the meter.
Installation
Figure 18 shows the connection of a meter to a PC using the RS485 output connector and a PDA7485
RS-232 to RS-422/485 converter in an RS-422 network. Figure 19 shows the connection of several
meters to a PC using a PDA7485 RS-232 to RS-422/485 converter in an RS-485 network.
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.
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.
Figure 18. RS-422 or RS-485 Wiring
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-422/485 Converter documentation for further details.
3. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
RS485 Connector to RS-422/485 Serial
Converter Connections
RS-422/485 Serial
Converter
PDA1485 RS-485
Adapter
DO DI DO DI DI DO DI DO
Figure 20. Connections for RS485
Connector to Serial Converter
Figure 19. RS-485 Two-Wire Multi-Drop Wiring
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.
Connections
Figure 20 details the wiring connections from the RS-485
connector to an RS-422/485 serial converter (such as the
PDA7485 or PDA8485) for a four-wire network.
Three Wire Connection
In order to wire the 5 pins for use as a 3-wire half-duplex RS-485 connection, it is necessary to create a
jumper connection between DI – DO and DI- – DO- as shown below.
18
Figure 21. Three-Wire RS485 Connection
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Digital I/O Connections
Digital inputs and outputs are provides in order to expand the functionality of the meter. Digital inputs are
made via a push button or switch connection to the appropriate digital input connector block and the +5
VDC block. Digital output connections are made by wiring from the appropriate digital output block to the
grounding terminal block.
Figure 22. Digital Input and Output Connections
F4 Digital Input Connections
Digital input F4 is also available on the meter. This digital input is connected with a normally open contact
across F4 and COM, or with an active low signal applied to F4.
Figure 23. F4 Digital Input Connections
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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 24. 4-20 mA Output Connections
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.
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 trigger the interlock relay. This
feature is enabled by configuring the relay, and relative digital input(s) (see page 43). In one example, dry
interlock contacts are connected in series to one digital input which will be used to force on (energize) the
assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front
panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O
contact). See below.
Figure 25. Interlock Connections
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
• The meter has been factory calibrated to read input frequency in Hz
(pulses/sec). The calibration equipment is certified to NIST standards.
• Use the K-Factor menu to match the rate/totalizer with a flowmeter’s k-factor
(pulse/unit of measure).
• Or use the Scale menu to scale the pulse input (pulse/sec) without a signal
source.
• Or use Cal menu to calibrate the rate/totalizer using a signal source.
Setup and Programming
Overview
There are two switches, located to the right of the input connector, which must be configured according to
the input level and type. The P+/P- switch, located inside the lower meter compartment to the left of the
input signal connector, is used to select the excitation voltage (24 V*, 10 V or 5 V) which is supplied to the
P+ and P- wiring terminals.
Setup and programming is done through the programming buttons.
After power and input signal connections have been completed and verified, apply power to the meter.
*Default setting
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Button Symbol
Description
LED
Status
Menu
1-4
Alarm 1-4 indicator
Right arrow/F1
R
Rate Indicator
Up arrow/F2
T
Total indicator or
Flashing: Tare
Acknowledge (Enter)/F3
G T
Grand total indicator
Note:
F4 – F8 are digital inputs.
▲
Total overflow indicator
M
Flashing: Manual control of flashing
relays. M flashing alone indicates manual
analog output. Indicators flash every 10
seconds.
Front Door
Panel
MENU RESET
F1
MAX
F2
ENTER
F3
MA OUT
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RELA Y4RELA Y3
43 6521
RELA Y2RELA Y1
MENU
RESET
F1
MAX
F2
ENT ER
F3
Programming Buttons and Status LED Indicators
The meter can be programmed using the buttons located behind the front door panel. Use the Menu
button to enter or exit Programming Mode, the Up Arrow button to cycle through menu options, and the
Enter button to select the menu item or option you want. The Right Arrow button is used during numeric
and decimal point programming.
• 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.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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.
Warning
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 onscreen
notification once the process is complete.
Front Door
Panel
MENU
RESET
F1
MAX
F2
ENTER
F3
MeterView® Pro Software
The meter can also be programmed using the PC-based MeterView Pro software included with the meter.
This software is can be installed on any Microsoft® Windows® (2000/XP/Vista/7/8/10) computer by
connecting the meter’s onboard USB. The meter is powered by the USB connection, so there is no need
to wire anything prior to programming the meter, though USB is intended only for meter configuration.
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.
Only one meter may be connected at a time. Attaching multiple meters will cause a conflict
with the meter software. Disconnect other meters before performing these steps.
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 doubleclick 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 onscreen 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.
Data logging for one meter at a time is available with MeterView Pro software. More advanced data
acquisition may be accomplished by using any Modbus RTU compliant software. Additional information
regarding configuration and monitoring of the meter using MeterView Pro software is available online.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Display
Parameter
Action/Setting Description
setup
Setup
Enter Setup menu
Input
Input
Enter Input selection menu
Total
Total
Enable or disable totalizer features
units
Units
Select the display units/tags
rate
Rate
Select the display units for rate
total
Total
Select the display units for total
Gtotal
Grand Total
Select the display units for grand total
Dec pt
Decimal point
Set decimal point
prog
Program
Enter the Program menu
InCAL
Input Calibration
Enter the Input Calibration menu
factor
K-factor Scaling
Programs unit to convert input pulse to rate in engineering units
SCALE
Scale
Enter the Scale menu
Cal
Calibrate
Enter the Calibration menu
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 not successful, check signal or programmed value
T tb
Total time base
Program total time base
T CF
Total conversion
factor
Program total conversion factor
T rst
Total reset
Program total rest mode: auto or manual
GT tb
Grand total time
base
Program grand total time base
GT CF
Grand total
conversion
factor
Program grand total conversion factor
GT rst
Grand total reset
Program grand total rest mode: auto or manual
Auto
Automatic
Press Enter to set automatic total reset
T dly
Time delay
Program time delay for total auto reset
mAn
Manual
Press Enter to reset total manually
dsplay
Display
Enter the Display menu
Line 1
Display Line 1
Press Enter to assign the display line 1 parameter (default: PV)
Line 2
Display Line 2
Press Enter to assign the display line 2 parameter (default:
engineering units)
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.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Display
Parameter
Action/Setting Description
d-Inty
Display intensity
Set display intensity level from 1 to 8
RELaY
Relay
Enter the Relay menu
Assign
Assignment
Assign relays to rate, total, or grand total
Asign1
Assign 1
Relay 1 assignment
rate
Rate
Assign relay to rate
totAL
Total
Assign relay to total
G total
Grand total
Assign relay to grand total
RLY 1
Relay 1
Relay 1 setup
Act 1
Action 1
Set relay 1 action
Auto
Automatic
Set relay for automatic reset
A-nman
Auto-manual
Set relay for automatic & manual reset any time
LatCH
Latching
Set relay for latching operation
Lt-CLr
Latching-cleared
Set relay for latching operation with manual reset only after alarm
condition has cleared
Altern
Alternate
Set relay for pump alternation control
Sanmpl
Sampling
Set relay for sampling operation
OFF
Off
Disable relay and front panel status LED
(Select Off to enable Interlock feature)
Set 1
Set 1
Program set point 1
RSt 1
Reset 1
Program reset point 1
RLY 2
Relay 2
Relays 2-4 setup
FaiLSF
Fail-safe
Enter Fail-safe menu
FLS 1
Fail-safe 1
Set relay 1 fail-safe operation
on
On
Enable fail-safe operation
off
Off
Disable fail-safe operation
FLS 2
Fail-safe 2
Set relays 2-8 fail-safe operation
DeLAY
Delay
Enter relay Time Delay menu
DLY 1
Delay 1
Enter relay 1 time delay setup
On 1
On 1
Set relay 1 On time delay
OFF 1
Off 1
Set relay 1 Off time delay
DLY 2
Delay 2
Enter relays 2-8 time delay setup
Aout
Analog output
Enter the Analog output scaling menu
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)
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Display
Parameter
Action/Setting Description
reset
Reset
Press Enter to access the Reset menu
Rst Gt
Reset grand
total
Press Enter to reset grand total
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
Rst t
Reset total
Press Enter to reset total
Rst tr
Reset tare
Reset tare
Contrl
Control
Enter Control menu
Auto
Automatic
Press Enter to set meter for automatic operation
mAn
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
Pass 2
Password 2
Set or enter Password 2
Pass 3
Password 3
Set or enter Password 3
Total
Total password
Set or enter password for manual reset
Gtotal
Grand total
password
Set or enter password for manual reset
nonrst
Non-resettable
Non-resettable grand total set after entering “050873” for Gtotal
password
unloc
Unlocked
Program password to lock meter
locd
Locked
Enter password to unlock meter
999999
Flashing
Over/under range condition
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
004.000
004.000
005.000
dis 1 dis 1 dis 1
Next
Setting
Select
Next
Digit
Increment
Digital
Value
Accept
Setting
Main Menu
The main menu consists of the most commonly used functions: Setup, Reset, Control, 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/F3.
• The display moves to the next menu
every time a setting is accepted by
pressing Enter/F3.
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 arrow to auto-increment the display value.
Press the Enter button, at any time, to accept a setting or Menu button to exit without saving changes.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Setting up the Rate/Totalizer Meter (setup)
The Setup menu is used to select:
1. Enable or disable totalizer features
2. Units for Rate, Total, and Grand
Total
3. Decimal point position
4. Input Calibration
5. Display parameter and intensity
6. Relay operation
7. 4-20 mA analog output scaling
Press the Enter button to access any menu
or press Up arrow button to scroll through
choices. Press the Menu button to exit at
any time.
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.
Jumper J4 located inside the meter, behind
the input signal connector, is used to select
the excitation voltage (24 V*, 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.
*Default setting
Setting the Totalizer Features (total)
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.
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Page 29
PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Display
Character
Display
Character
Display
Character
Display
Character
0
0
C
C
k
K
v V 1
1
c
c
l
L
uw
w
2
2
d
d
m
m
x X 3
3
e
E
n
n
y Y 4
4
f
F
O
O
z Z 5
5
g
G
o
o
- - 6
6
9
g
p
P
/ / 7
7
H
H
q
q
[ ] 8
8
h
h
r
r
] [ 9
9
I
I
s
S
= = A
A
I
i
t
t
!
Degree(<)
b
b
j
J
u
u
Space
Setting the Input Units or Custom Tags (units)
Enter the input unit or custom tag that will be displayed if d unit is selected as the little display
parameter. See the flow chart on page 33 to access the display menu to show the unit or tag on the little
display. The engineering units or custom legends can be set using the following 7-segment character set:
Notes:
Degree symbol represented by (<) if programming with MeterView® Pro.
The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are
shifted one position.
Press and hold up arrow to auto-scroll the characters in the display.
Setting the Decimal Point (dEc pt)
The decimal point may be set with up to five decimal places or with no decimal point at all. The rate, total,
and grand total decimal points are independent.
Pressing the Right arrow moves the decimal point one place to the right until no decimal point is
displayed then it moves to the leftmost position. Pressing the Up arrow moves the decimal point one
place to the left.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Programming the Rate/Totalizer (prog)
It is very important to read the following information, before proceeding to program the meter:
• The meter has been factory calibrated to read input frequency in Hz (pulses/sec). The calibration
equipment is certified to NIST standards.
• Use the K-Factor menu to match the rate/totalizer with a flowmeter’s k-factor (pulse/unit of
measure).
• Or use the Scale menu to scale the pulse input (pulse/sec) without a signal source.
• Or use Cal menu to calibrate the rate/totalizer using a signal source.
The Program menu contains the following menus:
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. Total reset mode for total & grand total
Note: 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. The Scale and Calibrate
functions can use up to 32 points (default is 2). The number of points should be set in the Advanced
Features menu under the Multi-Point Linearization (Linear) menu selection prior to scaling and calibration of
the meter, see page 51 for details.
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 programmed in the Advanced Features
menu; see Advanced Features Menu, page 47.
K-Factor Calibration (
The meter may be calibrated using the K-Factor function. Most flowmeter manufacturers provide this
information with the device. Enter the K-Factor (Factor) menu and select the decimal point with highest
resolution possible and program the k-factor value (i.e. pulses/gal). The meter will automatically calculate
the flow rate using the k-factor and the time base selected.
Factor
)
Multi-Point Calibration & Scaling
The meter is set up at the factory for 2-point linear calibration. The number of points for multi-point
calibration/scaling is set up in the Advanced Features menu. Up to 32 linearization points may be
selected. See page 51 for details.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
For instructions on how to program numeric
values see Setting Numeric Values, page 27.
Input Range
Input 1 & Input 2 Span
4-20 mA
0.15 mA
10 VDC
0.01 VDC
Scaling the Meter (
The process inputs (4-20 mA and 10 VDC) can be scaled to display the process variable in engineering
units. A signal source is not needed to scale the meter; simply program the inputs and corresponding
display values.
SCALE
)
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 the input prior to the failure 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. Wrong signal selection in Setup menu.
3. Minimum input span requirements not maintained.
4. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum input span is the minimum difference between input 1 and input 2 signals required to
complete the calibration or scaling of the meter.
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To scale the meter without a signal source refer to
K-Factor Calibration (Factor) on page 30 or
Scaling the Meter (SCALE) on page 31
There is no need to warm up the meter before performing the calibration procedure.
Time Base, Total Conversion Factor & Total Reset
The time base, total conversion factor, and total reset menus are located in the Program menu.
The total and grand total have their own independent settings. This means that one can be displaying the
value in gallons while the other displays in million gallons, liters, m3, etc.
Time Base
The time base is the amount of time over which the rate parameter should accrue. For example, if the
rate was ten and the time base was in minutes, then the total would increase by ten every one minute.
Total & Grand Total Conversion Factor
The total & grand total conversion factor is the amount by which the rate is multiplied before it is added to
the total or grand total. For Example, if the rate was ten per second and the total conversion factor was
100, the total would increase by 1000 every second. This is useful, for instance, if you want to show rate
in gallons and total in thousands of gallons.
Total & Grand Total Reset
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.
Non-Resettable Totalizer
The total and grand total can be password-protected to prevent unauthorized resets. The grand total can
be programmed as a non-resettable total, see page 45 for details.
Calibrating the Meter with External Source (
The meter can be
calibrated to display the
process variable 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.
Cal
)
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Setting the Display Parameter & Intensity (dsplay)
The main display (line 1) can be
programmed to display:
1. Rate value
2. Total or grand total
3. Relay set points
4. Max & min values
5. Modbus input
6. Display rate and units
7. Rate and total
8. Rate and grand total
9. Total and units
10. Grand total and units
The small display (Line 2) can be
programmed to display:
1. Rate value
2. Total or grand total
3. Relay set points
4. Max & min values
5. Engineering units or
custom legends
6. Modbus input
7. Off (no display)
8. Display rate and units
9. Rate and total
10. Rate and grand total
11. Total and units
12. Grand total and units
Display Intensity: 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 setting is 8.
After setting up the input and display, press the Menu button to exit programming and skip the rest of the
setup menu. Press the Menu button again and the Up arrow to reach the Program menu and complete
the scaling or calibration of the meter.
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Caution!
During setup, the relays do not follow the input
and they will remain in the state found prior to
entering the Relay menu.
!
Setting the Relay Operation (relay)
This menu is used to set up the operation of the relays.
1. Relay assignment
a. Rate for low and high alarm
b. Total
c. Grand total
d. Modbus input process variable
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 and reset points
4. Fail-safe operation
a. On (enabled)
b. Off (disabled)
5. Time delay
a. On delay (0-999.9 seconds)
b. Off delay (0-999.9 seconds)
Relay Assignment (Assign)
The relays can be assigned to any of the following parameters:
1. Rate for low or high alarm indication
2. Total for alarm indication
3. Grand total for alarm indication
4. Modbus input
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Setting the Relay Action
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 (non-latching)
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 user-specified time)
7. Off (relay state controlled by Interlock feature)
The following graphic shows relay 1 action setup; relay 2-8 are set up in a similar
fashion.
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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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. For relay to turn back
“on”, signal must go above set point and then go
below it.
Relay and Alarm Operation Diagrams
The following graphs illustrate the operation of the relays, status LEDs, and ACK button.
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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.
Pump Alternation Control Operation
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Signal Loss or Loop Break Relay
Operation
The following graph shows the loop break relay
operation for a high alarm relay.
When the meter detects a break in the 4-20 mA
loop, the relay will go to one of the following
selected actions:
1. Turn On (Go to alarm condition)
2. Turn Off (Go to non-alarm condition)
3. Ignore (Processed as a low signal
condition)
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-mAn
)” reset
mode is selected, the LED follows the reset
point and not the relay state when the relay
is acknowledged.
Set
Reset
Relay
LED
Input
Sample
Time
Sample
Time
Sample
Time
Relay
LED
Input
Loop Break = Ignore
de-energized energized
off on
Relay
LED
Loop Break = Off
Relay
LED
Loop Break = On
Set
Reset
Relay Sampling Operation
When the signal crosses the set point, the relay trips and the sample time starts. After the sample time
has elapsed, the relay resets. The cycle repeats every time the set point is crossed, going up for high
alarms and going down for low alarms.
The sample time can be programmed between 0.1 and 5999.9 seconds.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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
Fail-Safe
Selection
Non-Alarm State
Alarm State
Power Failure
NO
NC
NO
NC
Off
Open
Closed
Closed
Open
Relays go to
non-alarm state
On
Closed
Open
Open
Closed
Relays go to
alarm state
LED
Status
1
Alarm 1
2
Alarm 2
3
Alarm 3
4
Alarm 4
Relay Operation Details
Overview
The relay capabilities of the meter expand its usefulness beyond simple indication to provide users with
alarm and control functions. These capabilities include front panel alarm status LEDs as well as either 2
or 4 internal relays. Typical applications include high or low temperature, level, pressure or flow alarms,
control applications such as simple on/off pump control, and pump alternation control for up to 8 pumps.
There are four basic ways the relays can be used:
1. High or Low Alarms with Latching or Non-Latching Relays
2. Simple On/Off Control with 100% Adjustable Deadband
3. Sampling (Based on Time)
4. Pump Alternation Control for up to 8 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 failsafe selection for each relay:
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 LEDs on the front panel provide status indication for the following:
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 respond differently for latching
and non-latching 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 reflect 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).
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Warning!
In latching relay mode, latched relays will reset
(unlatch) when power is cycled.
Relay terminology for following tables
Terminology
Relay Condition
On
Alarm (Tripped)
Off
Normal (Reset)
Ack
Acknowledged
Automatic reset only
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
Off
Off
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
Manual reset any time
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack
Off
Off
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
Latching and Non-Latching Relay Operation
The relays can be set up for latching (manual reset) or
non-latching (automatic reset) operation.
The On and Off terminology does not refer to the status of
the relay’s coil, which depends on the fail-safe mode
selected.
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 (A-man)
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.
The next time an alarm occurs, the operator acknowledges
the alarm manually while the alarm condition still exists.
This causes the relay to reset, but the LED stays on until
the meter returns to the normal condition.
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.
Latching Relay (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.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Set and Reset Point Programming
Relay
Set Point
Reset Point
Function
1
30.000
10.000
Controls pump #1
2
35.000
5.000
Controls pump #2
3
4.000
9.000
Controls low alarm
4
40.000
29.000
Controls high alarm
MENU RESET
F1
MAX
F2
ENTER
F3
Acknowledging Relays
There are two ways to acknowledge relays programmed for manual reset:
1. Via the programmable front panel function keys F1-F3 (Default: F3 assigned to ACK).
2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V
terminals on the digital I/O terminal, or using the F4 digital input, which is triggered with a contact
closure to COM, or with an active low signal (see page 19).
When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are
acknowledged.
Figure 26. Acknowledge Relays w/Function Key or Digital Input
Pump Alternation Control Applications (Altern)
For pump control applications where two or more similar pumps are used to control the level of a tank or a
well, it is desirable to have all the pumps operate alternately. This prevents excessive wear and
overheating of one pump over the lack of use of the other pumps.
Up to 8 relays can be set up to alternate every time an on/off pump cycle is completed. The set points
and reset points can be programmed, so that the first pump on is the first pump off.
Application #1: Pump Alternation Using Relays 1 & 2
1. Relays 1 and 2 are set up for pump
alternation.
2. Relays 3 and 4 are set up for low and
high alarm indication.
Pump Alternation Operation
1. Pump #1 turns on when level reaches
30.000, when level drops below 10.000,
pump #1 turns off.
2. The next time level reaches 30.000, pump #2 turns on, when level drops below 10.000, pump #2
turns off.
3. If the level doesn’t reach 35.000, pump #1 and pump #2 will be operating alternately.
4. If pump #1 cannot keep the level below 35.000, pump #2 will turn on at 35.000, then as the level
drops to10.000, pump #1 turns off, pump #2 is still running and shuts off below 5.000.
5. Notice that with the set and reset points of pump #2 outside the range of pump #1, the first pump
on is the first pump to go off. This is true for up to 8 alternating pumps, if setup accordingly.
6. Relay #3 will go into alarm if the level drops below 4.000 and relay #4 will go into alarm if the level
exceeds 40.000.
7. Adding the 4 external relays, expansion module allows using the 4 SPDT internal relays for pump
alternation and the 4 SPST external relays for high, high-high, low, and low-low alarm indication.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Set and Reset Point Programming
Relay
Set Point
Reset Point
Function
1
495
750
Controls low alarm
2
7500
6900
Controls high alarm
3
7000
900
Controls backup pump
4
6000
1000
Controls main pump
6245
GAL
6245
GAL
7153
GAL
7782
GAL
495
GAL
Application #2: Pump Alternation Using Relays 3 & 4
1. Relays 1 and 2 are set up for low
and high alarm indication.
2. Relays 3 and 4 are set up for
pump alternation.
The following graphics provide a visual representation of a typical pump alternation application with high
and low alarm monitoring:
1. Relay #4 turns the main pump on at
6000 gallons and turns it off at 1000
gallons.
2. With the Pump Alternation feature
activated, the next time the level
reaches 6000 gallons, relay #3
transfers and starts the backup pump.
3. If the backup pump is not able to keep
up, and the level reaches 7000 gallons,
relay #4 transfers and starts the main
pump as well.
4. Relay #2 trips the High Level Alarm at
7500 gallons and resets at 6900
gallons.
5. Relay #1 trips the Low Level Alarm at
495 gallons and resets at 750 gallons.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
SW1
SW2
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 (dI1 to dI-4) terminal.
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front panel LEDs are off) 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 restart 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.
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For instructions on how to program
numeric values see Setting
Numeric Values, page 27.
Contrl
Auto
man a out
rly 1 rly 4
off on
Contrl
Contrl man man man
a out rly 1 rly 4
16.000
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.
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 output based on display values.
Reset Menu (reset)
The Reset menu is used to reset the maximum or minimum reading (peak or valley) reached by the
process; both may be reset at the same time by selecting “reset high & low” (rst HL). The tare value
used to zero the display may be reset by selecting “reset tare” (rst tr).
Control Menu (Contrl)
The Control menu is used to control the 4-20 mA analog output 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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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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.
Model:
Serial Number:
Password 1:
__ __ __ __ __ __
Password 2:
__ __ __ __ __ __
Password 3:
__ __ __ __ __ __
Total
__ __ __ __ __ __
GTotal
__ __ __ __ __ __
Caution!
Once the Grand Total has been programmed as
“non-resettable” the feature cannot be disabled.
!
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.
Protecting or Locking the Meter
Enter the Password menu and program a six-digit password.
For instructions on how to program numeric values see Setting Numeric Values, page 27.
Record the password for future reference. If appropriate, it may be recorded in the space provided.
Total Reset Password & Non-Resettable Total
The total and the grand total can be password-protected to prevent unauthorized total resets.
The grand total can be programmed as a non-resettable total by entering the password “050873”.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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.
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 to 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.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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
Set noise filter value
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 display variables
seriAl
Serial
Set serial communication parameters
SlaveId
Slave ID
Set slave ID or meter address
baud
Baud rate
Select baud rate
Tr dLY
Transmit delay
Set transmit delay for serial communication
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, cutoff, out)
Functn
Signal input
conditioning
Select linear, square root, programmable exponent, or round
horizontal tank function
Linear
Linear
Set meter for linear function and select number of linearization
points
No PtS
Number of points
Set PV1 for 2 to 32-point linearization
Set PV2 for 2 to 8-point linearization
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.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Display
Parameter
Action/Setting
CutofF
Cutoff
Set low-flow cutoff
Count
Count
Set total and grand total count direction
Tot C
Total Count
Set total to count up or down
Gtot C
Grand Total Count
Set grand total to count up or down
AoutPr
Analog output
programming
Program analog output parameters
Source
Source
Select source for the 4-20 mA output
O-rang
Overrange
Program mA output for display overrange
u-rang
Underrange
Program mA output for display underrange
mAx
Maximum
Program maximum mA output allowed
min
Minimum
Program minimum mA output allowed
Calib
Calibrate
Calibrate 4-20 mA output (internal reference source used for
scaling the output)
4 mA
4 mA output
Enter mA output value read by milliamp meter with at least
0.001 mA resolution
20 mA
20 mA output
Enter mA output value read by milliamp meter with at least
0.001 mA resolution
user
User I/O
Assign function keys and digital I/O
F1
F1 function key
Assign F1 function key
F2
F2 function key
Assign F2 function key
F3
F3 function key
Assign F3 function key
F4
F4 function
Assign F4 function (digital input)
dI I
Digital input 1
Assign digital input 1 – 4, if expansion modules are connected
dO 1
Digital output 1
Assign digital output 1 – 4, if expansion modules are connected
Diag
Diagnostics
Display parameter settings
LED t
LED test
Test all LEDs
Info
Information
Display software and S/N information
Erase
Erase
Delete the MeterView Pro installation files from the meter
Gate Function (
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.
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).
48
Gate
)
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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.
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
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
Contact De-Bounce Filter (
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.
The filter function (Filter) is the second option in the Advanced Features menu. There are two settings,
Hi SPd (high speed) and Lo SPd (low speed), press ENTER when Lo SPd is displayed to enable the filter
function. Program the filter value, so that there are no extra counts when a contact closure is completed.
FiLter
)
Filter Settings
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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
Warning!
Do not connect any equipment other than Precision Digital’s expansion
modules, cables, or meters 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 onboard digital I/O, RS-485 serial
communications, and M-Link functionality.
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 the rounding selected. See
examples in the table to the right.
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 onboard micro USB connection. For
ongoing digital communications with a computer or other data terminal equipment, an RS-232, or RS-485
option is required; see Ordering Information on page 5 for details.
Note: More detailed instructions are provided with each optional serial communications adapter.
Note: Refer to the Modbus Register Tables 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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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Select Menu (SElect)
The Select menu is used to select the signal input conditioner applied
to the input (linear, square root, programmable exponent, or round horizontal tank), low-flow cutoff, and
analog output programming. The multi-point linearization is part of the linear function selection.
Signal Input Conditioning (Functn)
The Function menu is used to select the linear input conditioner applied to the input signal. Meters are set
up at the factory for linear function with 2-point linearization. This linear function provides a display that is
linear with respect to the input signal.
Multi-Point Linearization (
Meters are set up at the factory for linear function with 2-point linearization. Up to 32 linearization points
can be selected for PV1 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 oddshaped tanks or to convert level to flow using weirs and flumes with complex exponent.
If the dual-scale level feature has been selected, the menus for PV1 & PV2 are enabled. PV2 can be
programmed with up to 8 linearization points.
Linear
)
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
*If installed
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 cutoff value may be programmed from 0 to 999999. The meter will display zero below the cutoff
value. Programming the cutoff value to zero disables the cutoff feature.
Analog Output Programming (AoutPr)
The Analog Output Programming menu is used to program the behavior of the 4-20 mA output. The
following parameters and functions are programmed in this menu:
1. Source: Source for generating the 4-20 mA output (e.g. PV)
2. Overrange: Analog output value with display in overrange condition
3. Underrange: Analog output value with display in underrange condition
4. Break: Analog output value when loop break is detected
5. Max: Maximum analog output value allowed regardless of input
6. Min: Minimum analog output value allowed regardless of input
7. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output
Analog Output Source
The source for generating the 4-20 mA output may be assigned to the rate/process variable, total, grand
total, maximum or minimum value reached by the rate/process, or one of the set points, or the Modbus
PV input.
Analog Output Calibration
To perform the analog output calibration, it is recommended to use a milliamp meter with a resolution of
at least 0.1 µA to measure the output current. The values saved internally during this procedure are used
for scaling the 4-20 mA output in the Setup menu.
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
(a digital input located on the signal input connector), and up to eight additional digital inputs to access
most of the menus or to activate certain functions immediately (e.g. reset max & min, hold relay states,
etc.). This allows the meter to be greatly customized for use in specialized applications.
Up to eight digital outputs can be assigned to a number of actions and functions executed by the meter
(i.e. alarms, relay acknowledgement, 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.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Display
Description
relay
Directly access the relay menu
Set 1*
Directly access the set point menu
for relay 1 (*through 8)
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.
Ln1 Hi
Display maximum display value on
line 1
Ln1 Lo
Display minimum display value on
line 1
Ln1 HL
Display maximum & minimum
display values on line 1
Ln2 Hi
Display maximum display value on
line 2
Ln2 Lo
Display minimum display value on
line 2
Ln2 HL
Display maximum & minimum
display values on line 2
Ln2 gt
Display the grand total 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
expansion module to achieve
interlock functionality. See page 43
for details about interlock relays.
Display
Description
Contrl
Directly access the control menu
disabl
Disable the selected function key or
digital I/O
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 the total
Rst gt
Reset the grand total
Rst Hi
Reset the stored maximum display
value
Rst Lo
Reset the stored minimum display
value
Rst HL
Reset the stored maximum &
minimum display values
Dsplay
Directly access the display menu
Line 1
Directly access the display line 1
menu
Line 2
Directly access the display line 2
menu
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 8) has been triggered
(digital outputs only)
Function Keys & Digital I/O Available Settings
Refer to the following table for descriptions of each available function key or digital I/O setting.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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
MENU
RESET
F1
MAX
F2
ENT ER
F3
Meter Operation
The meter accepts pulses (e.g. ±40mV to ± 8V), square wave (0-5, 0-12V, or 0-24V), open collector NPN,
PNP, TTL, or switch contact signals and displays these signals in engineering units from -99999 to
999999.
The dual-line display can be customized by the user to operate in such a way as to satisfy a specific
application. Typically, the upper display is used for the process variable; while the lower display is used
for engineering units, custom legend, total, grand total, or set point indication.
The meter can be set up to display the pulse input on the upper display and the Modbus input on the
lower display. The relays and analog output can be programmed to operate from the Modbus PV input.
Button Operation
Function Key Operation
During operation, the programmable function keys operate according to the way they have been
programmed in the Advanced Features – User menu.
The table above shows the factory default settings for F1, F2, and F3.
Digital Input Operation
Five (5) digital inputs, F4-F8, 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 (COM in
the case of F4, see Digital I/O Connections on page 19 for details), or with an active low signal. During
operation, digital inputs operate according to the way they are programmed in the Advanced Features –
User menu.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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 reading by pressing the Up arrow/F2 button
and to use the Right arrow/F1 button to access the Reset menu.
To display max reading using function key with factory defaults:
1. Press Up arrow/F2 button to display maximum reading since the last reset/power-up.
2. To reset max/min press Right arrow/F1 button to access the Reset menu. The max & min displays
are reset to actual values.
3. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (d Hi), Min (d Lo), or toggle between Max and Min (d HL) every 10
seconds.
Troubleshooting
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 Diagnostics menu see
Advanced Features Menu, page 47.
This menu allows the user to test the functionality of all the meter LEDs, check the meter’s software and
version information, and erase the MeterView Pro software installation files from the meter. Press the
Enter button to view the settings and the Menu button to exit at any time.
For a description of the diagnostic messages, see Advanced Features Menu & Display Messages, page
47.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
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 the Diagnostics menu.
4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory
default settings.
Note: The dual-scale selection for some level applications (d-SCAL) is not reset to the single scale
factory default. This can be changed using the Setup – Input menu.
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
Parameter
Display
Default Setting
Input type
Input
Pulse
Total
yes
Total enabled
Units
units
Rate
pulse
Total
pulse
Gr. Total
pulse
Filter
filter
Hi Spd
K-factor
Factor
1.000
Function
Functn
Linear
Number of
points
No Pts
2
Input 1
InP 1
00000.0
Display 1
Dis 1
00000.0
Input 2
InP 2
10000.0
Display 2
Dis 2
10000.0
Decimal point
Ddddd.d
1 place
Cutoff value
CutofF
0.000 (disabled)
Display
assignment
dSPLAY
Upper display
Line 1
Rate/Process
Lower display
Line 2
Total value
Display
intensity
d-Inty
8
Total time
base
T tb
Second
Total
conversion
factor
T CF
1.000
Total reset
T rst
Manual
Grand total
time base
GT tb
Second
G total
conversion
factor
gT CF
1.000
Grand total
reset
gT rst
Manual
Parameter
Display
Default Setting
Relay 1
assignment
Asign1
Total
Relay 2
assignment
Asign2
Total
Relay 3
assignment
Asign3
Rate
Relay 4
assignment
Asign4
Rate
Relay 1 action
Act 1
Automatic
Relay 1 set
point
Set 1
100.0
Relay 1 reset
point
RSt 1
000.0
Relay 2 action
Act 2
Automatic
Relay 2 set
point
Set 2
200.0
Relay 2 reset
point
RSt 2
000.0
Relay 3 action
Act 3
Automatic
Relay 3 set
point
Set 3
300.0
Relay 3 reset
point
RSt 3
250.0
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
Fls 1
Off
Fail-safe relay
2
Fls 2
Off
Fail-safe relay
3
Fls 3
Off
Fail-safe relay
4
Fls 4
Off
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable parameters on the meter.
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Helios Large Display Pulse Input Rate/Totalizer Instruction Manual PD2-6300
Parameter
Display
Default Setting
On delay
relay 1
On 1
0.0 sec
Off delay
relay 1
Off 1
0.0 sec
On delay
relay 2
On 2
0.0 sec
Off delay
relay 2
Off 2
0.0 sec
On delay
relay 3
On 3
0.0 sec
Off delay
relay 3
Off 3
0.0 sec
On delay
relay 4
On 4
0.0 sec
Off delay
relay 4
Off 4
0.0 sec
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
Rate/process
Overrange
output
O-rang
21.000 mA
Underrange
output
u-rang
3.000 mA
Maximum
output
mAx
23.000 mA
Minimum
output
min
1.000 mA
Slave ID
(Address)
Slave
Id
247
Parameter
Display
Default Setting
Baud rate
baud
9600
Transmit
delay
Tr dly
50 ms
Parity
Parity
Even
Byte-to-byte
timeout
t-byt
010 (0.1 sec)
F1 function
key
F1
Reset max & min
F2 function
key
F2
Upper display: Max (Hi)
F3 function
key
F3
Acknowledge relays
F4 function
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 1
Pass 1
000000 (unlocked)
Password 2
Pass 2
000000 (unlocked)
Password 3
Pass 3
000000 (unlocked)
Total
password
Total
000000 (unlocked)
Grand total
password
Gtotal
000000 (unlocked)
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PD2-6300 Helios Large Display Pulse Input Rate/Totalizer Instruction Manual
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
Meter displays error message
during calibration (Error)
Check:
1. Signal connections
Minimum input span requirements
Meter displays
999999
-99999
Check:
1. Input selected in Setup menu
Corresponding signal at Signal connector
Display is unstable
Check:
1. Input signal stability and value
2. Display scaling vs. input signal
Filter and gate values
Display response is too slow
Check filter and gate values
Display reading is not accurate
Check:
Scaling or calibration
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
1. Hi and a number
Lo and a number
Press Menu to exit max/min display readings.
Relay operation is reversed
Check:
5. Fail-safe in Setup menu
Wiring of relay contacts
Relay and status LED do not
respond to signal
Check:
1. Relay action in Setup menu
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:
5. Serial adapter and cable
6. Serial settings
Meter Slave ID 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.
Troubleshooting Tips
Note: Certain sequences of events can cause unexpected results. To solve these issues, it is best to start
fresh from factory defaults and map changes ahead of time, rather than at random.
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