Precision Digital PD2-6262 User guide

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

PRECISION DIGITAL CORPORATION

233 South Street • Hopkinton MA 01748 USA Tel (800) 343-1001 • Fax (508) 655-8990

www.predig.com

• Large Display NEMA 4X, IP65 Wall Mounted Flow Rate/Totalizer

• 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Field Selectable Inputs with ±0.03% Accuracy

• Large Dual-Line 6-Digit Display, 1.8" (46 mm) Readable from 100 Feet (30 Meters) Away

• Isolated 24 VDC @ 200 mA Transmitter Power Supply

• 4 Relays with Interlocking Capability + Isolated 4-20 mA Output Option

• Free PC-Based, On-Board, MeterView Pro USB Programming Software

• SunBright Display Standard Feature; Great for Outdoor Applications

• Dual Analog Inputs with Math Functions

• Rate, Total, and Grand Total for Each Input Channel

• Display Open Channel Flow with Programmable Exponent Feature

• 32-Point Linearization & Square Root Extraction

• Operating Temperature Range: -40 to 65°C (-40 to 149°F)

• Conformal Coated PCBs for Dust and Humidity Protection

• UL & C-UL Listed. E160849; 508 Industrial Control Equipment

• Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC

• Programmable Display, Function Keys & Digital Input

• On-Board USB & RS-485 Serial Communications

• Modbus RTU Communication Protocol Standard

• 5 Digital Inputs & 4 Digital Outputs Standard

• Password Protection

• Light / Horn & Button Accessory

• Control Station Accessory for Remote Operation

• 3-Year Warranty

MeterView Pro

USB Install

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Disclaimer

The information contained in this document is subject to change without notice. Precision Digital makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. See Warranty Information and Terms & Conditions on www.predig.com for complete details.

• Read complete instructions prior to installation and operation of the meter.

• Risk of electric shock or personal injury.

• This product is not recommended for life support

applications or applications where malfunctioning could result in personal injury or property loss. Anyone using this product for such applications does so at his/her own risk. Precision Digital Corporation shall not be held liable for damages resulting from such improper use.

WARNING

Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Limited Warranty

Precision Digital Corporation warrants this product against defects in material or workmanship for the specified period under

“Specifications” from the date of shipment from the factory. Precision Digital’s liability under this

limited warranty shall not exceed the purchase value, repair, or replacement of the defective unit. See Warranty Information and Terms & Conditions on www.predig.com for complete details.

Registered Trademarks

All trademarks mentioned in this document are the property of their respective owners.

FREE MeterView Pro Programming Software

The meter can be powered from the USB connection. When using the USB connection, DO NOT apply AC or DC power to the meter.

The easiest and quickest way to program your Helios meter is to use the FREE MeterView Pro programming software. This software is loaded into the meter and connects and installs directly to your PC with a USB cable. We recommend that the first thing you do after taking the meter out of the box is connect the Helios to your PC with the provided USB cable – do not use a different cable. DO NOT apply AC or DC power to the meter while your PC is connected to the meter as it will disrupt the USB

connection. You don’t even have to apply an input

signal. MeterView Pro programming software is intuitive, and

most customers can get their meter programmed as they like without even looking in the manual.

Watch MeterView Pro Software Video at

www.predig.com/meterviewpro

In addition to programming, the software may be used for:

• Monitoring

• Datalogging using your PC

• Generating and saving programming files for

later use

Once your meter is programmed the way you want it, you can wire it up for your application per the instructions in this manual and install it. If you find that you need to make adjustments to the programming after the meter is installed, you can use the front panel buttons and the instructions in this manual to do so.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Table of Contents

Introduction .......................................................................................................... 6

Ordering Information ........................................................................................... 6

Specifications....................................................................................................... 9

General ............................................................................................................. 9

Dual Process Input ........................................................................................ 10

Dual Rate/Totalizer ........................................................................................ 11

Relays ............................................................................................................. 11

USB Connection ............................................................................................ 11

Isolated 4-20 mA Transmitter Output .......................................................... 12

RS-485 Serial Communications ................................................................... 12

Modbus® RTU Serial Communications ........................................................ 12

Digital Input (F4) ............................................................................................ 12

Digital Inputs & Outputs ............................................................................... 12

MeterView Pro Software ................................................................................ 12

Compliance Information .................................................................................... 13

Safety .............................................................................................................. 13

Safety Information ............................................................................................. 13

Installation .......................................................................................................... 13

Unpacking ...................................................................................................... 13

Wall Mounting Instructions .......................................................................... 14

Mounting Dimensions .................................................................................. 14

Conduit Holes Location ............................................................................... 14

Pipe Mounting Instructions .......................................................................... 15

Installation Overview ..................................................................................... 16

MeterView Pro Software ................................................................................ 16

MeterView Pro Installation........................................................................... 16

Transmitter Supply Voltage Selection (P+, P-) ................................................ 17

Connections ................................................................................................... 18

Connectors Labeling ................................................................................... 18

Power Connections ..................................................................................... 19

Signal Connections ..................................................................................... 19

Relay Connections ...................................................................................... 19

Switching Inductive Loads ........................................................................... 20

RS-485 Connections ................................................................................... 20

RS-485 Multi-Drop Connection ................................................................... 20

RS-485 Serial Converters ........................................................................... 20

Digital I/O Connections................................................................................ 21

F4 Digital Input Connections ....................................................................... 22

4-20 mA Output Connections ...................................................................... 22

Analog Output Transmitter Power Supply ................................................... 22

Remote Operation of Meter ......................................................................... 22

Interlock Relay Feature ............................................................................... 22

Setup and Programming ................................................................................... 23

Overview ......................................................................................................... 23

LED Status Indicators ................................................................................... 23

Programming Buttons ................................................................................... 24

Display Functions & Messages .................................................................... 25

Main Menu ...................................................................................................... 28

Setting Numeric Values ................................................................................ 28

Setting Up the Meter (setup) ........................................................................ 29

Setting the Input Signal (Input) .................................................................. 30

Setting the Totalizer Features (total) ........................................................ 30

Setting the Rate, Total, & Grand Total Units/Tags (units)......................... 30

Setting the Decimal Point (dEc pt)............................................................. 31

Programming the Rate/Totalizer (prog) ...................................................... 31

Setting the Display Parameters & Intensity (dsplay).................................. 34

Display Intensity (d-Inty) ........................................................................... 34

Setting the Relay Operation (relay) ........................................................... 35

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Relay and Alarm Operation Diagrams ......................................................... 37

High Alarm Operation (Set > Reset)................................................................ 37

Low Alarm Operation (Set < Reset) ............................................................ 37

High Alarm with Fail-Safe Operation (Set > Reset) ..................................... 37

Low Alarm with Fail-Safe Operation (Set < Reset) ..................................... 37

Time Delay Operation ................................................................................. 38

Total Relay Sampling Operation ................................................................. 38

Pump Alternation Control Operation ........................................................... 39

Relay Sampling Operation .......................................................................... 39

Relay Operation Details ................................................................................ 40

Overview ..................................................................................................... 40

Relays Auto Initialization ............................................................................. 40

Fail-Safe Operation ..................................................................................... 40

Front Panel LEDs ........................................................................................ 40

Latching and Non-Latching Relay Operation .............................................. 40

Non-Latching Relay (Auto) ......................................................................... 41

Non-Latching Relay with Manual Reset (A-nman) ....................................... 41

Latching Relay (LatcH) ............................................................................... 41

Latching Relay with Clear (Lt-Clr) ............................................................ 41

Acknowledging Relays ................................................................................ 42

Pump Alternation Control Applications (Altern) ........................................ 42

Setting Up the Interlock Relay (Force On) Feature ..................................... 43

Scaling the 4-20 mA Analog Output (Aout) ................................................. 44

Reset Menu (reset) ....................................................................................... 44

Manual Control Menu (Contrl) ..................................................................... 44

Setting Up the Password (pass) ................................................................... 45

Protecting or Locking the Meter Functions .................................................. 45

Total Reset Password & Non-Resettable Total ........................................... 45

Making Changes to a Password Protected Meter ....................................... 45

Disabling Password Protection.................................................................... 45

Advanced Features Menu ............................................................................. 46

Advanced Features Menu & Display Messages.......................................... 46

Noise Filter (filter) ................................................................................... 48

Noise Filter Bypass (bypass) ...................................................................... 48

Rounding Feature (round) .......................................................................... 48

Modbus RTU Serial Communications (serial) .......................................... 48

Select Menu (SElect) ................................................................................. 49

Input Signal Conditioning (Functn) ............................................................. 49

Square Root Linearization (Square) ........................................................... 49

Programmable Exponent Linearization (Prog E) ........................................ 49

Multi-Point Linearization (Linear)............................................................... 50

Math Function (nmath) ................................................................................ 50

Math Constants (Const) .............................................................................. 50

Low-Flow Cutoff (CutofF) ........................................................................... 50

Totalizer Count Up/Down (Count) ............................................................... 51

Analog Output Programming (AoutPr) ....................................................... 52

Programmable Function Keys User Menu (user) ....................................... 53

Internal Calibration (ICAL) ........................................................................... 55

Meter Operation ................................................................................................. 56

Button Operation ........................................................................................... 56

Function Keys Operation .............................................................................. 56

Digital Inputs Operation ................................................................................ 56

Maximum/Minimum Readings ...................................................................... 56

Troubleshooting................................................................................................. 57

Diagnostics Menu (diag) .............................................................................. 57

Testing the Display LEDs ............................................................................ 57

Determining Software Version..................................................................... 57

Reset Meter to Factory Defaults ................................................................... 57

Factory Defaults & User Settings ................................................................ 58

Troubleshooting Tips .................................................................................... 60

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Table of Figures

Figure 1. Meter Mounting Holes Location ....................................................... 14

Figure 2. Meter Mounting Holes Dimensions .................................................. 14

Figure 3. Meter Dimensions – Side View ......................................................... 14

Figure 4. Meter Dimensions - Front View ........................................................ 14

Figure 5. Conduit Holes Location – Bottom View ........................................... 14

Figure 6. Vertical Pipe Mount Assembly.......................................................... 15

Figure 7. Horizontal Pipe Mount Assembly ..................................................... 15

Figure 8. Transmitter Supply Voltage Selection ............................................. 17

Figure 9. PD2-6262-6H0 / 7H0 Connectors Label ............................................ 18

Figure 10. PD2-6262-6H7 / 7H7 Connectors Label .......................................... 18

Figure 11. Power Connections ......................................................................... 19

Figure 12. Transmitters Powered by Internal Supply ..................................... 19

Figure 13. Transmitters Powered by Ext. Supply or Self-Powered ............... 19

Figure 14. Voltage Input Connections ............................................................. 19

Figure 15. Relay Connections........................................................................... 19

Figure 16. AC and DC Loads Protection .......................................................... 20

Figure 17. Low Voltage DC Loads Protection ................................................. 20

Figure 18. RS-485 Connection .......................................................................... 20

Figure 19. Five-Wire RS-485 Connections ....................................................... 21

Figure 20. Three-Wire RS-485 Multi-Drop Connections ................................. 21

Figure 21. Connections for RS-485 Connector to Serial Converter .............. 21

Figure 22. Three-Wire RS-485 Connection ...................................................... 21

Figure 23. Digital Input and Output Connections ........................................... 21

Figure 24. F4 Digital Input Connections .......................................................... 22

Figure 25. 4-20 mA Output Connections ......................................................... 22

Figure 26. Analog Output Supply Powering Other Devices........................... 22

Figure 27. Meter to PDA2364-MRUE Control Station Connection ................. 22

Figure 28. Interlock Connections ..................................................................... 22

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Introduction

The Helios PD2-6262 is a multi-purpose, easy to use, large-display dual-input rate/totalizer ideal for flow rate, total, and flow control applications. It features large 1.8 inch superluminous sunlight-readable 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 programming buttons are located behind the lower panel door and are not generally accessible during operation. For that reason, we recommend the use of the PDA2364-MRUE remote control station which has four buttons to mimic the buttons behind the panel.

The meter accepts current and voltage signals (e.g. 4-20 mA, 0-10 V) from an analog output flowmeter. The rates, as measured by the flowmeters, are automatically aggregated into cumulative totals and grand totals which can be displayed with the rates.

Various math functions may be applied to the rate, total, and grand total of the two channels, including addition, difference, absolute difference, average, weighted average, multiplication, division, minimum, maximum, draw, ratio, and concentration. This is in addition to the input signal conditioning functions (linear, square root, programmable exponent, or round horizontal tank calculations).

The displays, relays, and the analog output may be assigned to the rate, total, or grand total of input channels A or B, or math result channel C. Three of the programming buttons can be set for custom operation.

A fully loaded Helios PD2-6262 dual-input rate/totalizer comes with four SPDT relays, a 4-20 mA output, two 24 VDC power supplies, five digital inputs and four digital outputs, and RS-485 serial communications. The four relays can be used for alarm indication or process control applications. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O features make the Helios an excellent addition to any system.

Ordering Information

85-265 VAC Models

Model

Standard Features

Options Installed

PD2-6262-6H0

5 Digital Inputs, 4 Digital Outputs, RS-485 Communications

No options

PD2-6262-6H7

4 relays 4-20 mA output

12-24 VDC Models

Model

Standard Features

Options Installed

PD2-6262-7H0

5 Digital Inputs, 4 Digital Outputs, RS-485 Communications

No options

PD2-6262-7H7

4 relays 4-20 mA output

Accessories

Model

Description

PDA0004

Cable Gland

PDA7485-I

RS-232 to RS-485 isolated converter

PDA8485-I

USB to RS-485 isolated converter

PDAPLUG2

Plastic Conduit Plug

PDX6901

Snubber: 0.01 μF/470 Ω, 250 VAC

PDA2360 Control Stations

Model

Description

PDA2360-E

Emergency button

PDA2361-A

Ack button

PDA2361-B

Blank button

PDA2361-R

Reset button

PDA2361-T

Tare button

PDA2361-S

Stop button

PDA2361-Q

Silence button

PDA2362-AR

Ack and Reset buttons

PDA2362-BB

Two blank buttons

PDA2364-MRUE

Menu, right, up, enter buttons

Note: Control stations can be connected directly to the Helios meter’s on-board digital inputs. See Remote Operation of Meter on page 22 for details.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Light / Horn Accessories

Helios Meter Shown with MOD-PD2LHRB1 Red Light / Horn and Button. Meter Sold Separately.

Model

Description

MOD-PD2LHRB1

Red Light / Horn and Button Mounted and Wired to Helios

(1)

MOD-PD2LHGB1

Green Light / Horn and Button Mounted and Wired to Helios

(1)

MOD-PD2LHYB1

Yellow Light / Horn and Button Mounted and Wired to Helios

(1)

MOD-PD2LHBB1

Blue Light / Horn and Button Mounted and Wired to Helios

(1)

MOD-PD2LHWB1

White Light / Horn and Button Mounted and Wired to Helios

(1)

MOD-PD2LH5CB1

Light / Horn with User Choice of Red, Green, Yellow, Blue or White Light, Button, Mounted and Wired to Helios

(1)

MODPD2LH3CB1-RYG

Light / Horn with Red, Yellow, Green Light Layers, Button, Mounted and Wired to Helios

(1)

Note:

1. Specify MOD-PD2LH model as a separate item on the order for the Helios to order the Light / Horn & Button accessory installed and wired. Meter is sold separately.

9 labels are provided for the button.

Pipe Mounting Kit

Helios Meter Shown mounted to pipe using PDA6260 pipe mounting kit. See Pipe Mounting Instructions on page 15 for details.

Model

Description

PDA6260

2" Pipe Mounting Kit for PD2

Signal Splitter & Conditioner Accessories

Model

Description

PD659-1MA-1MA

Signal Isolator with One 4-20 mA Input and One 4-20 mA Output

PD659-1MA-2MA

Signal Splitter with One 4-20 mA Input and Two 4-20 mA Outputs

PD659-1V-1MA

Signal Conditioner with One 0-10 VDC Input and One 4-20 mA Output

PD659-1MA-1V

Signal Conditioner with One 4-20 mA Input and One 0-10 VDC Output

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Useful Tools

PD9501 Multi-Function Calibrator

This PD9501 Multi-Function Calibrator has a variety of signal measurement and output functions, including voltage, current, thermocouple, and RTD.

PD9502 Low-Cost Signal Generator

The PD9502 is a low-cost, compact, simple to use 4-20 mA or 0-10 VDC signal generator. It can easily be set for 0-20 mA, 4-20 mA, 0-10 V or 2-10 V ranges. Signal adjustment is made with a one-turn knob. A 15-27 VDC wall plug is provided with the instrument. Optional USB power bank is available.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Specifications

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

General

Display

Dual-line: 1.8" (46 mm) high, red LEDs 6 digits per line (-99999 to 999999), with

lead zero blanking

Display Intensity

Eight user selectable intensity levels. Default value is six.

Display Update Rate

5/second (200 ms)

LED Status Indicators

See LED Status Indicators on page 23 for details.

Overrange

Display flashes 999999

Underrange

Display flashes -99999

Display Assignment

Display lines 1 & 2 may be assigned to show:

• One or more rate channels: Channel A (Ch-A), B (Ch-B), or C (Ch-C)

• Toggle between rate channels: Ch-A & Ch-B, Ch-A & Ch-C, Ch-B & Ch-C, and Ch-A, Ch-B, & Ch-C

• Total or grand total: Ch-A or Ch-B

• Rate and total or grand total: Ch-A, Ch-B

• Relay set points

• Max/min values: Ch-A, Ch-B, or Ch-C

• Toggle between any rate channel & units

• Total and units: Ch-A or Ch-B

• Toggle between totals: Ch-A & Ch-B;

Ch-A, Ch-B, and sum of Ch-A and Ch-B

• Modbus input

Line 2 may also be set to show engineering units or be off, with no display.

Programming Methods

Four programming buttons, digital inputs, PC and MeterView Pro software, or Modbus registers.

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.

Rounding

Select 1, 2, 5, 10, 20, 50, or 100 (e.g. rounding = 10, value = 123.45,

display = 123.50).

Password

Three programmable passwords restrict modification of programmed settings and two prevent resetting the totals. Pass 1: Allows use of function keys and digital inputs Pass 2: Allows use of function keys, digital inputs and editing set/reset points Pass 3: Restricts all programming, function keys, and digital inputs. Total: Prevents resetting the total manually Gtotal: Prevents resetting the grand total manually

Non-Volatile Memory

All programmed settings are stored in nonvolatile memory for a minimum of ten years.

Power Options

85-265 VAC 50/60 Hz; 90-265 VDC, 20 W max; 12-24 VDC, 12-24 VAC, 15 W max. Powered over USB for configuration only.

Fuse

Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse

Normal Mode Rejection

Greater than 60 dB at 50/60 Hz

Isolation

4 kV input/output-to-power line 500 V input-to-output or output-to-P+ supply

Overvoltage Category

Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.

Environmental

Operating temperature range:

-40 to 65°C (-40 to 149°F)

Storage temperature range:

-40 to 85°C (-40 to 185°F)

Relative humidity:

0 to 90% non-condensing

Note: Printed circuit boards are conformally coated.

Connections

Power, signal, relays, mA out: Removable screw terminal blocks accept 12 to 22 AWG wire.

RS-485: Removable screw terminal block accepts 16 to 30 AWG wire.

Digital I/O: Non-removable screw terminal blocks accept 16 to 30 AWG wire.

Enclosure

UL Type 4X, IP65 rated. Polycarbonate & glass blended plastic case, color: gray. Includes four PG11 through-hole conduit openings, with two factory installed PG11, IP68, black nylon threaded hole plugs with backing nuts.

Mounting

Wall Mounting: Four (4) mounting holes provided for mounting meter to wall. See Wall Mounting Instructions on page 14 for additional details.

Pipe Mounting: Optional pipe mounting kit (PDA6260) allows for pipe mounting. Sold separately. See Pipe Mounting Instructions on page 15 for additional details.

Tightening Torque

Power, signal, relays, mA out terminals: 5 lb-in (0.56 Nm)

Digital I/O and RS-485:

2.2 lb-in (0.25 Nm)

Overall Dimensions

10.63" x 12.59" x 4.77" (270 mm x 319.7 mm x 121.2 mm) (W x H x D)

Weight

6.10 lbs (2.76 kg)

Warranty

3 years parts & labor. See Warranty Information and Terms & Conditions on

www.predig.com for complete details.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Dual Process Input

Two Inputs

Two non-isolated inputs, each separately field selectable: 0-20, 4-20 mA, 10 V (0-5, 1-5, 0-10 V), Modbus PV (Slave)

Isolated Transmitter Power Supply

Terminals P+ & P-: 24 VDC 10%. All models selectable for 24, 10, or 5 VDC

supply (Switch labeled P+/P-). 85-265 VAC models rated @ 200 mA max, 12-24 VDC powered models rated @ 100 mA max. 5 & 10 VDC supply rated @ 50 mA max. Refer to Transmitter Supply Voltage Selection (P+, P-) on page 17.

When the Light / Horn is powered by the transmitter power supply, see MOD-PD2LH Light / Horn's transmitter power supply specification in MOD-PD2LH manual for additional details. Light / Horn power not available for 5 or 10 VDC supplies.

Channels

Channel A, Channel B, Channel C (Math channel)

Programmable Constants

Constant P (Adder):

-99.999 to 999.999, default: 0.000

Constant F (Factor):

0.001 to 999.999, default: 1.000

Math Functions

Name

Function

Setting

Addition

(A+B+P)*F

Sunm

Difference

(A-B+P)*F

diF

Absolute diff.

((Abs(A-B))+P)*F

diFAbS

Average

(((A+B)/2)+P)*F

AVG

Multiplication

((A*B)+P)*F

nmulti

Division

((A/B)+P)*F

diVide

Max of A or B

((AB-Hi)+P)*F

Hi-Ab

Min of A or B

((AB-Lo)+P)*F

Lo-Ab

Draw

((A/B)-1)*F

drAuw

Weighted avg.

((B-A)*F)+A

uw avg

Ratio

(A/B)*F

ratio

Ratio 2

((B-A)/A)+P)*F

ratio2

Concentration

(A/(A+B))*F

Concen

Total Addition

(tA+tB+P)*F

Sunm t

G. Tot. Addition

(GtA+GtB+P)*F

SunmGT

Total Difference

(tA-tB+P)*F

Dif GT

G. Tot. Difference

(GtA-GtB+P)*F

Dif GT

Total Ratio

(tA/tB)*F

Tratio

Total Ratio 2

((tB-tA)/tA)*F

t-rat2

Total Percent

(tA/(tA+tB))*100

T PCT

Note: The F constant can be any value from

0.001 to 999.999. If the value is less than 1, it will have the same effect as a divider. For example, the average could also be derived by using (A+B)*F, where F = 0.500.

Sequence of Operations for Input Programming

1. Select Input for A and B

2. Set up the rate, total, and grand total engineering units for channels A & B, and units for math channel C

3. Set up rate, total, and grand total decimal points for channels A & B, and decimal point for math channel C

4. Program channel A & B rate parameters

5. Program channel A & B total and reset parameters

6. Set up display lines 1 and 2

7. Select the transfer function for A & B (e.g. Linear)

8. Select Math function for Channel C

9. Program constants for Factor (F) and Adder (P).

10. Program cutoff values for A and B

Accuracy

±0.03% of calibrated span ±1 count, square root & programmable exponent accuracy range: 10-100% of calibrated span

Temperature Drift

0.005% of calibrated span/C max from

0 to 65C ambient, 0.01% of calibrated span/C max from -40 to 0C ambient

Input Signal Conditioning

Linear, square root, or programmable exponent

Multi-Point Linearization

2 to 32 points for channel A and B

Programmable Exponent

User selectable from 1.0001 to 2.9999 for open channel flow

Low-Flow Cutoff

0.1 to 999,999 (0 disables cutoff function).

Point below at which the display always shows zero.

Decimal Point

Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd

Calibration Range

Input Range

Minimum Span Input 1 & 2

4-20 mA

0.15 mA

10 V

0.10 V

An error message will appear if the input 1 and input 2 signals are too close together.

Input Impedance

Voltage ranges: greater than 500 k Current ranges: 50 - 100  (depending on resettable fuse impedance)

Input Overload

Current input protected by resettable fuse, 30 VDC max. Fuse resets automatically after fault is removed.

HART Incompatible

The meter will interfere with HART signals when present on both analog inputs. It is recommended a single-channel meter be used to support the use of HART devices in both analog input loops.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Dual Rate/Totalizer

Rate Display Indication

-99999 to 999999, lead zero blanking.

Total Display & Total Overflow

0 to 999,999; automatic lead zero blanking. Up to 999,999,999 with total-overflow

feature. “oF” is displayed to the left of total overflow and ▲ LED is illuminated.

Total Decimal Points

Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd Total decimal point is independent of rate decimal point. Channel A and B decimal points programmed independently.

Dual Totalizer

Calculates total for channels A and B based on rate and field programmable multiplier to display total in engineering units. Time base must be selected according to the time units in which the rate is displayed. Channel A and B totalizer parameters programmed independently.

Totalizer Rollover

Totalizer rolls over when display exceeds 999,999,999. Relay status reflects display.

Total Overflow

Override

Program total A or B total reset for automatic with 0.1 second delay and set point 1 for 999,999

Totalizer Presets

Four, user selectable under setup menu. Any set point can be assigned to channel A or B total or grand total (or C) and may be programmed anywhere in the range of the meter for total alarm indication.

Total Reset Password

Total and grand total passwords may be entered to prevent resetting the totals or grand totals from the front panel.

Total & Grand Total Reset

Via front panel button, external contact closure on digital inputs, automatically via user selectable preset value and time delay, or through serial communications. Channel A and B total and grand total reset parameters programmed independently.

Programmable Delay On Release

0.1 and 999.9 seconds; applied to the

first relay assigned to total or grand total. If the meter is programmed to reset total

to zero automatically when the preset is reached, then a delay will occur before the total is reset.

Non-Resettable Total

The grand totals can be programmed as non-resettable totals by entering the password “050873”. Both channels are set to non-resettable when this password is entered.

• Once the Grand Total has been programmed as “nonresettable” the feature CANNOT be disabled.

Relays

Rating

4 SPDT (Form C) internal and rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @ 125/250 VAC for inductive loads

Noise Suppression

Noise suppression is recommended for each relay contact switching inductive loads; see Switching Inductive Loads page on page 20 for details.

Relay Assignment

Relays may be assigned to channel A or B rate, total, or grand total; channel C; or Modbus control.

Deadband

0-100% of span, user programmable

High or Low Alarm

User may program any alarm for high or low trip point. Unused alarm LEDs and relays may be disabled (turn off).

Relay Operation

• Automatic (non-latching) and/or manual

reset

• Latching (requires manual acknowledge) with or without clear

• Pump alternation control (2-4 relays)

• Sampling (based on set point and time)

• Off (disable unused relays and enable

Interlock feature)

• Manual on/off control mode

Relay Reset (Acknowledge)

User selectable via front panel button, F4 digital input, external contact closure on digital inputs, or through serial communications.

1. Automatic reset only (non-latching), when the input passes the reset point.

2. Automatic + manual reset at any time (non-latching)

3. Manual reset only, at any time (latching)

4. Manual reset only after alarm condition has cleared (L)

Note: Front panel button, F4 terminal at back of meter or digital input may be assigned to acknowledge relays programmed for manual reset.

Time Delay

0 to 999.9 seconds, on & off relay time delays. Programmable and independent for each relay

Fail-Safe Operation

Programmable and independent for each relay.

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

Auto Initialization

When power is applied to the meter, relays will reflect the state of the input to the meter.

USB Connection

Function

Programming only

Compatibility

USB 2.0 Standard, Compliant

Connector Type

Type B receptacle

Cable

USB Type A-B cable

Driver

Microsoft® Windows® XP/Vista/7/8/10

Power

USB port provides power to the meter.

DO NOT apply AC or DC power to the meter while the USB port is in use.

Page 12

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Isolated 4-20 mA Transmitter Output

Output Source

Input channels A or B, rate, total, or grand total; channel C; max or min for channel A or B; highest or lowest max or min of A and B; set points 1-4; Modbus input; or manual control mode

Scaling Range

1.000 to 23.000 mA for any display range

Calibration

Factory calibrated:

4.000 to 20.000 = 4-20 mA output

Analog Out Programming

23.000 mA maximum for all parameters:

Overrange, underrange, max, min, and break

Accuracy

± 0.1% of span ± 0.004 mA

Temperature Drift

0.4 µA/C max from 0 to 65C ambient,

0.8 µA/C max from -40 to 0C ambient

Note: Analog output drift is separate from input drift.

Isolated Transmitter Power Supply

Terminals I+ & R: 24 VDC  10%. May be used to power the 4-20 mA output or other devices.

All models rated @ 40 mA max.

External Loop Power Supply

35 VDC maximum

Output Loop Resistance

Power supply

Minimum

Maximum

24 VDC

10 

700 

35 VDC (external)

100 

1200 

0-10 VDC Output

The PD659-1MA-1V can convert the

optional 4-20 mA output to a 0-10 VDC output

RS-485 Serial Communications

Compatibility

EIA-485

Connectors

Removable screw terminal connector

Max Distance

3,937' (1,200 m) max

Status Indication

Separate LEDs for Power (P), Transmit (TX), and Receive (RX)

Modbus® RTU Serial Communications

Slave Id

1 – 247 (Meter address)

Baud Rate

300 – 19,200 bps

Transmit Time Delay

Programmable between 0 and 199 ms

Data

8 bit (1 start bit, 1 or 2 stop bits)

Parity

Even, Odd, or None with 1 or 2 stop bits

Byte-To-Byte Timeout

0.01 – 2.54 second

Turn Around Delay

Less than 2 ms (fixed)

Note: Refer to the Helios Modbus Register Tables located at www.predig.com for details.

Digital Input (F4)

Function

Remote operation of front-panel buttons, acknowledge/reset relays, reset totals, reset max/min values. See Function Keys & Digital I/O Available Settings on page 54 for a complete list of capabilities.

Contacts

3.3 VDC on contact. Connect normally

open contacts across F4 to COM

Logic Levels

Logic High: 3 to 5 VDC Logic Low: 0 to 1.25 VDC

Digital Inputs & Outputs

Function

Terminals provided for remote operation of all four programming / operation buttons (use PDA2364-MRUE control station). Other uses include acknowledge/reset relays and reset max/min values. See

Function Keys & Digital I/O Available Settings on page 54 for a complete list of

capabilities.

Channels

4 digital inputs & 4 digital outputs

Digital Input Logic High

3 to 5 VDC

Digital Input Logic Low

0 to 1.25 VDC

Digital Output Logic High

3.1 to 3.3 VDC

Digital Output Logic Low

0 to 0.4 VDC

Source Current

10 mA maximum output current

Sink Current

1.5 mA minimum input current

+5 V Terminal

To be used as pull-up for digital inputs only. Connect normally open push buttons across +5 V & DI 1-4.

• DO NOT use +5 V terminal to power external devices.

MeterView Pro Software

Availability

Download directly from meter or from

www.predig.com/download_software

System Requirements

Microsoft® Windows® XP/Vista/7/8/10

Communications

USB 2.0 (for programming only) (Standard USB A to USB Type B)

RS-485 to USB converter (programming, monitoring, and data logging)

Configuration

Configure meters one at a time

Power

USB port provides power to the meter.

DO NOT apply AC or DC power to the meter while the USB port is in use.

Page 13

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Compliance Information

Safety

UL & C-UL Listed

USA & Canada UL 508 Industrial Control Equipment (USA)

C22.2 No. 142 (Canadian National Standard)

UL File Number

E160849

Enclosure

UL Type 4X, NEMA 4X, IP65

Low Voltage Directive

EN 61010-1 Safety requirements for measurement, control, and laboratory use

Safety Information

• Read complete instructions prior to installation and operation of the meter.

• Risk of electric shock or personal injury.

• Hazardous voltages exist within enclosure.

Installation and service should be performed only by trained service personnel.

Installation

There is no need to open the clear plastic front cover in order to complete the installation, wiring, and setup of the meter. All programming is done using MeterView Pro software or through the buttons and switches located under the lower door panel and are accessible by removing the single securing screw. Wires should be run through the knockout holes located on the bottom of the meter, see Figure 5. Conduit Holes Location – Bottom View on page 14 for details.

There are a total of four pre-drilled conduit entry holes located at the bottom of the meter. If the need to drill additional holes arises, make sure you will have the clearance necessary for conduit mounting hardware.

Do not disconnect the RJ45 connector found on the right side of the meter wiring board. Doing so will disable the 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 Figure 8. Transmitter Supply Voltage Selection on page 17.

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.

Page 14

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Wall Mounting Instructions

The meter can be mounted to any wall using the four provided mounting holes. Note that the bottom mounting holes are located underneath the lower door panel. To mount the meter to a wall, follow these instructions

• Prepare a section of wall approximately 11" x 13" (280 mm x 330 mm) for meter mounting by marking with a pencil the mounting holes (shown in Figure 1) on the wall.

• Select the appropriate mounting screws for the mounting surface to be used. The mounting holes diameter is shown on Figure 2.

Note: Mounting screws are not included.

• Using a drill bit slightly smaller than the girth of the mounting screws, pre-drill holes at the mounting locations previously marked.

• Insert mounting screws into the four mounting holes and screw them into the pre-drilled holes. DO NOT overtighten the mounting screws as it is possible that the enclosure could crack and become damaged.

Figure 1. Meter Mounting Holes Location

Figure 2. Meter Mounting Holes Dimensions

Mounting Dimensions

Figure 3. Meter Dimensions – Side View

Figure 4. Meter Dimensions - Front View

Conduit Holes Location

Figure 5. Conduit Holes Location – Bottom View

Mounting Hole

Lower Door Panel

10.43" (265 mm)

9.8" (249 mm)

11.14" (283 mm)

Dia. 0.2" (5.5 mm)

2.63" (67 mm)

4.77"

(121.2 mm)

10.63" (270 mm)

12.59" (319.7 mm)

Mounting HoleMounting Hole

Lower Door Panel

Plugged

Holes

Unplugged

Holes

1.1"

(27.9 mm)

1.99"

(50.5 mm)

0.9"

(23 mm)

Ø0.74" (18.9 mm)

Drill or Punch-Out Holes

Page 15

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Pipe Mounting Instructions

The meter can also be mounted to a pipe using the optional pipe mounting kit (PDA6260). This kit includes two mounting plates, two U-bolts, and the necessary nuts and bolts. To mount the meter to a pipe using the pipe mounting kit accessory, follow these instructions.

• Secure the mounting plates to the top and bottom (for vertical pipes) or left and right (for horizontal pipes) of the reverse side of the meter enclosure using the provided fasteners. DO NOT overtighten the fasteners as it could cause damage to the enclosure.

• Using the provided nuts and U-bolts, secure the mounting plates to the pipe applying enough torque such that the meter cannot be moved up or down (or side to side).

Figure 6. Vertical Pipe Mount Assembly

Figure 7. Horizontal Pipe Mount Assembly

Mounting Plate

U-Bolt

Pipe

U-Bolt

Back of Meter

Mounting Plate

Mounting

Plate

Mounting

Plate

Pipe

Back of

Meter

U-BoltU-Bolt

Page 16

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Installation Overview

We recommend the following sequence for getting the meter into service:

1. DO NOT apply AC or DC power to the meter.

2. Connect the meter to the PC with the USB cable provided. DO NOT use a different USB cable.

3. If MeterView Pro (MVPro) is already installed in your computer, then the program will launch automatically in most systems. If the program does not start automatically, double-click on the MVPro icon.

4. If MVPro is not installed, follow the instructions provided below.

5. Use MVPro to configure the meter for your application.

6. Disconnect the USB cable from the meter.

7. Apply power and signal and check operation of the meter.

8. Install the meter and put into service.

9. Make any programming adjustments using the front panel buttons.

MeterView Pro Software

The easiest and quickest way to program your Helios meter is to use the FREE MeterView Pro programming software. This software is loaded into the meter and connects and installs directly to your PC with the USB cable provided. DO NOT use a different USB cable. We recommend that the first thing you do after taking the meter out of the box is connect the Helios to your PC with the provided USB cable. DO NOT apply AC or DC power to the meter while your PC is connected to the meter as it will disrupt the USB connection. It is not necessary to apply an input signal.

MeterView Pro programming software is intuitive, and most customers can get their meter programmed as they like without even looking in the manual.

Watch Meterview Pro Software Video at

www.predig.com/meterviewpro

MeterView Pro Installation

1. Connect one end of the provided USB cable

to the meter and the other end to the computer. The computer will automatically install the driver software it needs to talk to the meter. Follow the on-screen instructions and allow sufficient time for the process to complete. This can take a few minutes. If the process is interrupted, then it could leave the system in an unstable condition.

• Only one meter may be connected at a time. Attaching multiple meters will cause a conflict with the meter software.

• DO NOT apply AC or DC power to the meter when using the USB connection.

2. Once the driver is installed, an AutoPlay dialog should appear for the drive

“MAINSTAL.” Click “Open folder to view

files.”

If the computer does not display an AutoPlay

dialog for the drive “MAINSTAL,” you should

open My Computer and double-click on the drive labeled “MAINSTAL.”

3. Double-click on the file named “MAStart.” The program will open a few windows and install two programs on your computer. Simply follow the on-screen instructions until you see one of the dialogs below. If you

receive a “User Account Control” warning,

click “Yes.”

4. If there is an update available, click the

“Update” button to install the new version. Otherwise, click “Configure” to begin

programming your meter.

Note: If you decide to update your MeterView Pro software, once the installation has completed, you will be asked if you want to update the setup files located on the meter itself. This way, you will always have the most current version on the meter for future installs.

• DO NOT unplug the meter while the new installation files are being written to it. The meter will display uwrite during the process and you will receive an on-screen notification once the process is complete.

Page 17

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

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 switch:

1. Turn off the power to the meter.

2. Unscrew and open the lower door panel.

3. Locate the P+/P- switch located in the center of the connections board (see diagram below).

4. Flip this switch into the appropriate position for the required transmitter excitation.

Figure 8. Transmitter Supply Voltage Selection

P+/P-

24V 10V 5V

MENU RIGHT UP ACK

RESET

MAX

ENTER

Page 18

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Connections

All connections are made to screw terminal connectors located under the lower door panel. Remove the single securing screw in order to access the wiring terminals.

• Use copper wire with 60°C or 60/75°C insulation for all line voltage connections. Observe all safety regulations. Electrical wiring should be performed in accordance with all applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.

Connectors Labeling

The connectors’ label, affixed to the inside of the lower door panel, shows the location of all connectors available with the ordered configuration.

• DO NOT connect any equipment to the RJ45 M-LINK connector. Otherwise damage will occur to the

equipment and the meter.

• DO NOT disconnect the RJ45 connector located to the left of the power terminal block. Doing so will disable

the on-board digital I/O, and the RS-485 serial communications.

Figure 9. PD2-6262-6H0 / 7H0 Connectors Label

Figure 10. PD2-6262-6H7 / 7H7 Connectors Label

RI-I+

NONC

1 2 3 4 5 6 7 8

P+/P-

24V 10V 5V

RS-485

DIGITAL I/O

M-LINK

USB

MENU RIGHT UP ACK

POWER

PWR TX R X

DI DI

DO DO

O1 O2 O3 O4 G

I1 I2 I3 I4 +5

__ __

NONCCNONCC NONCC

MA OUT

21 3

43 6521

RELAY4RELAY3

43 6521

RELAY2RELAY1

SIGNAL

Ch-A

P- F4P+ COM V+

3412 5

mA+ COM V+ mA+

7869

Ch-B

RESET

MAX

ENTER

Page 19

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Power Connections

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

Figure 11. Power Connections

Signal Connections

Signal connections are made to a nine-terminal connector labeled SIGNAL. The COM (common) terminals are the return for the 4-20 mA and the 10 V input signals. The two COM terminals connect to the same common return, and are not isolated.

Current and Voltage Connections

The following figures show examples of current and voltage connections.

There are no switches or jumpers to set up for current and voltage inputs. Setup and programming is performed through the programming buttons or MeterView Pro software.

Figure 12. Transmitters Powered by Internal

Supply

Figure 13. Transmitters Powered by Ext. Supply or

Self-Powered

The current input is protected against current overload by a resettable fuse. The display may or may not show a fault condition depending on the nature of the overload.

The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself when the fault condition is removed.

Figure 14. Voltage Input Connections

The meter is capable of accepting any voltage from 10 VDC to +10 VDC.

Relay Connections

Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4. Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of the

corresponding relay. The relays’ C terminals should

not be confused with the COM (common) terminal of the INPUT SIGNAL connector.

Figure 15. Relay Connections

AC or DC

POWER

Required External Fuse:

5 A max, 250 V Slow Blow

POWER

C NONO NC NC C

RELAY4 RELAY3

4 36 5 2 1

C NONO NC NC C

RELAY2 RELAY1

4 36 5 2 1

Page 20

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Switching Inductive Loads

The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts. Suppression can be obtained with resistorcapacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation:

Figure 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.

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.

Figure 17. Low Voltage DC Loads Protection

RC Networks Available from Precision Digital

RC networks are available from Precision Digital and should be applied to each relay contact switching an inductive load. Part number: PDX6901.

Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.

RS-485 Connections

The RS-485 connections are made to a five terminal connector used for Modbus® RTU serial communications. The RS-485 terminals include Transmit Data (DO) and (/DO), Receive Data (DI) and (/DI), and Signal Ground. See Modbus RTU Serial Communications (serial) on page 48 for more information.

There are three diagnostic LEDs: Power (PWR) Transmit Data (TX), and Receive Data (RX) to show when the meter is transmitting and receiving data from other devices.

Figure 18. RS-485 Connection

RS-485 Multi-Drop Connection

When using more than one meter in a multi-drop mode, each meter must be provided with its own unique address. The meter address (Slave ID) can be programmed between 1 and 247. The transmit delay can be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.

To change the meter address:

1. Press and hold the Menu button for three seconds to access Advanced Features menu of the meter.

2. Press Up arrow until Serial (SEriaL) menu is displayed and press Enter, Addres is displayed.

3. Press Enter to change meter address using Right and Up arrow buttons. Press Enter to accept.

4. Press Menu button to exit and return to Run Mode.

RS-485 Serial Converters

To convert the RS-485 to RS-232, use the PDA7485-I converter. To convert the RS-485 to USB, use the PDA8485-I converter. See Ordering Information on page 6 for additional information.

C R

RS-485

PWR TX RX

DI DI DO DO

__ __

Page 21

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

RS-485 Connection Examples

Figure 19. Five-Wire RS-485 Connections

Figure 20. Three-Wire RS-485 Multi-Drop

Connections

Notes:

1. Termination resistors are optional, and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations.

2. Refer to RS-232 to RS-485 Converter documentation for further details.

3. Use shielded cable, twisted-pair plus ground. Connect ground shield only at one location

RS-485 Converter Connections

Figure 21 below details the wiring connections from the RS-485 connector to an RS-485 serial converter (such as the PDA7485-I or PDA8485-I) for a five-wire network.

RS-485 Connector to RS-485

Serial Converter Connections

RS-485 Connector

RS-485 to USB or

RS-232 Converter

DO DI DO DI DI DO DI DO

Figure 21. Connections for RS-485 Connector to

Serial Converter

Three-Wire Connection

In order to wire the five pins for use as a three-wire half-duplex RS-485 connection, it is necessary to create a jumper connection between DI to DO and /DI to /DO- as shown below.

Figure 22. Three-Wire RS-485 Connection

Digital I/O Connections

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

Figure 23. Digital Input and Output Connections

Shield

RS-232 Serial

Connection

to PC

Twisted-Pair

DI DI DO DO

__ __

RS-232 to RS-485

Converter

DIDO

Shield

Twisted-Pair

Meter #1

DI DI DO DO

__ __

DI DI DO DO

__ __

Last Meter

RS-232 Serial

Connection

to PC

RS-232 to RS-485

Converter

DIDO

__ __

DI DI DO DO

O1 O2 O3 O4 G

I1 I2 I3 I4+5

Ground

5 VDC

Page 22

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital input connected with a normally open closure across F4 and COM, or with an active low signal applied to F4. It can be used for remote operation of front-panel buttons, to acknowledge/reset relays, reset totals, or to reset max/min values. See Function Keys & Digital I/O Available Settings on page 54 for a complete list of capabilities.

Figure 24. F4 Digital Input Connections

4-20 mA Output Connections

Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT. The 4-20 mA output may be powered internally or from an external power supply.

Figure 25. 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.

Figure 26. Analog Output Supply Powering Other

Devices

Remote Operation of Meter

The meter can be operated via the programming buttons or a PDA2364-MRUE remote control station using the digital inputs and outputs connections as illustrated in Figure 27. Meter to PDA2364-MRUE Control Station Connection.

Figure 27. Meter to PDA2364-MRUE Control

Station Connection

Interlock Relay Feature

As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as interlock relay(s). Interlock contact(s) are wired to digital input(s) and activate the interlock relay. This feature is enabled by configuring the relay, and the corresponding digital input(s), see Setting Up the Interlock Relay (Force On) Feature on page 43.

In the example below, an Interlock Contact switch is connected to a digital input, which will be used to force on (energize) the Interlock Relay. The Interlock Relay and the Control Relay are connected in series with the load.

• When the Interlock Contact is closed (safe), the Interlock Relay energizes, allowing power to flow to the Control Relay; the corresponding front panel LED is on.

• When the Interlock Contact is open, the corresponding front panel LED flashes (locked out), the Interlock Relay is de-energized, preventing power from flowing to the Control Relay and the load.

Figure 28. Interlock Connections

4-20 mA Input

Remote Display, PLC,

Chart Recorder, Etc.

RI- I+

132

RELAY1

mA OUT

24 V

12-35 VDC

Power

Supply

4-20 mA

Input Meter

RI- I+ 132

RELAY1

321

24 V

mA OUT

Internal Power Supply

and Analog Output

321

Active Output Loop Passive Output Loop

RI- I+

132

24 VDC

Powered

Device

24 V

Page 23

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Setup and Programming

There is no need to recalibrate the meter when first received from the factory. The meter is factory calibrated prior to shipment for milliamps and volts with

calibration equipment that is certified to NIST standards.

Overview

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

LED Status Indicators

LED

State

Indication

1-4

Steady

Alarm condition based on set and reset points, independent of relay status in certain configurations. (Available on all meter configurations, including those without relays installed)

1-4

Flashing

Relay interlock switch open

1-4 & M

Flashing

Relay in manual control mode

Steady

Rate

Steady

Total

Flashing

Meter in Tare mode

G & T

Steady

Grand Total

▲

Steady

Total overflow. (“oF” is displayed to the left of total overflow and ▲ LED is illuminated)

Flashing

Analog output in manual control mode

Steady

Channel A displayed

Steady

Channel B displayed

Steady

Channel C displayed

Page 24

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Programming Buttons

Button

Description

Button

Description

Up Arrow/F2

Right Arrow/F1

Acknowledge (Enter)/F3

• Press the Menu button to enter or exit the Programming Mode at any time.

• Press the Right arrow button to move to the next digit during digit or decimal point programming.

• Press or hold the Up arrow button to scroll through the menus, decimal point, or to increment the value of a digit.

• Press the Enter button to access a menu or to accept a setting.

• Press and hold the Menu button for three seconds to access the advanced features of the meter.

Remote Buttons

The meter can be operated via a remote control station (PDA2364-MRUE) using the digital input connections. The PDA2364-MRUE mimics the Helios’s four programming buttons: Menu, Right Arrow, Up Arrow, and Enter.

See Remote Operation of Meter on page 22 for details.

Lower Door Panel

1 2 3 4 5 6 7 8

P+/P-

24V 10V 5V

M-LINK

USB

MENU RIGHT UP ACK

POWER

RESET

MAX

ENTER

Ch-A

P- F4P+ COM V+

3412 5

mA+ COM V+ mA+

7869

Ch-B

SIGNAL

RI-I+ NONC

NONCCNONCC NONCC

MA OUT

21 3

43 6521

RELAY4RELAY3

43 6521

RELAY2RELAY1

RS-485

DIGITAL I/O

PWR TX RX

DI DI

DO DO

O1 O2 O3 O4 G

I1 I2 I3 I4 +5

__ __

MAX

RIGHT

RESET

ACK

ENTER

Page 25

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Display Functions & Messages

The following table shows the main menu functions and messages in the order they appear in the menu.

Display

Parameter

Action/Setting Description

setup

Setup

Enter Setup menu

Input

Enter Input selection menu

Ch-A*

Input

Set input type for channel A (*or B)

nmA

4-20 mA

Set meter for 4-20 mA input

Volt

0-10 VDC

Set meter for 10 VDC input

total

Total

Enable/disable totalizer functions

YES

Yes

Enable totalizer functions

Disable totalizer functions

units

Unit

Select the display units/tags

Ch-A*

Rate unit

Set rate unit or tag for channel A (*or B)

Ch-C

Math unit

Set unit or tag for math channel C

Tot-A*

Total unit

Set total unit or tag for channel A (*or B)

Gtot-A*

Grand total unit

Set grand total unit or tag for channel A (*or B)

Dec pt

Decimal point

Set decimal point

Ch-A*

Decimal point

Set decimal point for channel A (*or B or C)

Rate*

Rate

Set rate decimal point (*channel A and B only)

Total*

Total

Set total decimal point (*channel A and B only)

Gtotal*

Grand total

Set grand total decimal point (*channel A and B only)

prog

Program

Enter the Program menu

InCAL

Input calibration

Enter the Input Calibration menu

SCAL A

Scale A

Enter the Scale menu for channel A

SCAl B

Scale B

Enter the Scale menu for channel B

Cal A

Calibrate A

Enter the Calibration menu for channel A

Cal B

Calibrate B

Enter the Calibration menu for channel B

Inp 1

Input 1

Calibrate input 1 signal or program input 1 value

Dis 1

Display 1

Program display 1 value

Display

Parameter

Action/Setting Description

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, calibration not successful, check signal or programmed value

tsetup

Total setup

Enter the Total Setup menu

Ch-A*

Channel A

Setup the total for channel A (*or B)

tbase

Time base

Program total time base

T Cf

Total conversion factor

Program total conversion factor

Gt CF

Grand total conversion factor

Program grand total conversion factor

treset

Total reset

Program total reset mode: auto or manual

Ch-A*

Channel A

Set total reset modes for channel A (*or B)

T rst

Total reset

Program total reset mode: auto or manual

Gt rst

Grand total reset

Program grand total reset mode: auto or manual

T dly

Time delay

Program automatic reset time delay

dsplay

Display

Enter the Display menu

Line 1

Assign the upper display parameter

Line 2

Assign the lower display parameter

D Ch-A

Display Ch-A

Assign display to channel A

D Ch-B

Display Ch-B

Assign display to channel B

D Ch-C

Display Ch-C

Assign display to channel C (math)

D Ab

Display AB

Alternate display of channel A & B

D AC

Display AC

Alternate display of channel A & C

D BC

Display BC

Alternate display of channel B & C

D AbC

Display ABC

Alternate display of channel A, B, & C

D t-a

Display total A

Assign display to channel A total

D t-b

Display total B

Assign display to channel B total

D gt-a

Display grand total A

Assign display to channel A grand total

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Display

Parameter

Action/Setting Description

D gt-b

Display grand total B

Assign display to channel B grand total

D rt-a

Display rate and total A

Alternate display of channel A rate and total

D rt-b

Display rate and total B

Alternate display of channel B rate and total

Drgt-a

Display rate and grand total A

Alternate display of channel A rate and grand total

Drgt-b

Display rate and grand total B

Alternate display of channel B rate and grand total

D set1*

Display Set 1*

Displays relay 1 (*through 4) set point.

D Hi-A

Display high A

Display high value of channel A

D Lo-A

Display low A

Display low value of channel A

D HL-A

Display high/low A

Alternate between high/low value of channel A

D Hi-B

Display high B

Display high value of channel B

D Lo-B

Display low B

Display low value of channel B

D HL-B

Display High/low B

Alternate between high/low value of channel B

D Hi-C

Display high C

Display high value of channel C

D Lo-C

Display low C

Display low value of channel C

D HL-C

Display High/low C

Alternate between high/low value of channel C

D a-u

Display A and units/tags

Alternate display of channel A and the unit/tag

D B-u

Display B and units/tags

Alternate display of channel B and the unit/tag

D C-u

Display C and units/tags

Alternate display of channel C and the unit/tag

D ta-u

Display total A and total units A

Alternate display of channel A total and total units

D tb-u

Display total B and total units B

Alternate display of channel B total and total units

D tab

Display total A and B

Alternate display of channel A total and channel B total

Display

Parameter

Action/Setting Description

D TAbC

Display total A, B, and math channel C

Alternate display of channel A total, channel B total, and math result channel C

nm bus

Display Modbus

Display Modbus input register

D off

Display off

Display blank line 2

D unit

Display unit

Display line 1 channel units

d-Inty

Display intensity

Set display intensity level from 1 to 8

RELaY

Relay

Enter the Relay menu

Assign

Assignment

Assign relays to channels or Modbus

Asign1*

Assign 1

Relay 1 (*through 4) assignment

Ch-A*

Channel A*

Assign relay to channel A (*or B or C)

Rate*

Rate

Assign relay to rate (*channel A and B only)

Total*

Total

Assign relay to total (*channel A and B only)

Gtotal*

Grand total

Assign relay to grand total (*channel A and B only)

nm bus

Modbus

Assign relay to Modbus register

RLY 1*

Relay 1

Relay 1 (*through 4) setup

Act 1

Action 1

Set relay 1 action

Auto

Automatic

Set relay for automatic reset

Set 1

Enter relay 1 set point

RST 1

Reset 1

Enter relay 1 reset point

A-nman

Automanual

Set relay for auto or manual reset any time

LatCH

Latching

Set relay for latching operation

Lt-CLr

Latchingcleared

Set relay for latching operation with manual reset only after alarm condition has cleared

Altern

Alternate

Set relay for pump alternation control

SAnmpl

Sample

Set relay for sample time trigger control

Off

Turn relay off

FaiLSF

Fail-safe

Enter Fail-safe menu

FLS 1*

Fail-safe 1

Set relay 1 (*through 4) fail-safe operation

Enable fail-safe operation

off

Off

Disable fail-safe operation

DeLAY

Delay

Enter relay Time Delay menu

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Display

Parameter

Action/Setting Description

DLY 1*

Delay 1

Enter relay 1 (*through 4) time delay setup

On 1

Set relay 1 On time delay

OFF 1

Off 1

Set relay 1 Off time delay

break

Loop break

Set relay condition if loop break detected

Break1*

Break 1

Set relay 1 (*through 4) break condition

ignore

Ignore

Ignore loop break condition (Processed as a low signal condition)

Relay goes to alarm condition when loop break detected

Off

Relay goes to non-alarm condition when loop break detected

Aout

Analog output

Enter the Analog output scaling menu

Aout 1

Aout Channel

Analog Output source channel

Dis 1

Display 1

Program display 1 value

Out 1

Output 1

Program output 1 value (e.g. 4.000 mA)

Dis 2

Display 2

Program display 2 value

Out 2

Output 2

Program output 2 value (e.g. 20.000 mA)

reset

Reset

Press Enter to access the Reset menu

Rst Hi

Reset high

Press Enter to reset max display

Rst Lo

Reset low

Press Enter to reset min display

Rst HL

Reset high & low

Press Enter to reset max & min displays

Tot a

Reset total A

Press Enter to reset channel A total

Tot b

Reset total B

Press Enter to reset channel B total

Gtot a

Reset grand total A

Press Enter to reset channel A grand total

Gtot b

Reset grand total B

Press Enter to reset channel B grand total

Tot ab

Reset totals A and B

Press Enter to reset channels A and B totals

Gt ab

Reset grand totals A and B

Press Enter to reset channels A and B grand totals

Contrl

Manual Control

Enter Manual Control menu

Auto

Automatic

Press Enter to set meter for automatic operation

Display

Parameter

Action/Setting Description

nmAn

Manual

Press Enter to manually control relays or analog output operation

pass

Password

Enter the Password menu

Pass 1

Password 1

Set or enter Password 1

Unlock

Unlocked

Program password to lock meter

Locd

Locked

Enter password to unlock meter

Pass 2

Password 2

Set or enter Password 2

Pass 3

Password 3

Set or enter Password 3

Total

Total reset password

Set or enter a total reset password

Gtotal

Grand total password

Set or enter a grand total reset password

999999

-99999

Flashing

Over/under range condition

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Main Menu

The main menu consists of the most commonly used functions: Reset, Manual Control, Setup, and Password.

• Press Menu button to enter Programming Mode then press the Up arrow button to scroll main menu.

• Press Menu, at any time, to exit and return to Run Mode. Changes made to settings prior to pressing Enter are not saved.

• Changes to the settings are saved to memory only after pressing Enter.

• The display moves to the next menu every time a setting is accepted by pressing Enter.

Setting Numeric Values

The numeric values are set using the Right and Up arrow buttons. Press Right arrow to select next digit and Up arrow to increment digit value. The digit being changed is displayed brighter than the rest.

Press and hold up arrow to auto-increment the display value. If negative numbers are allowed, the first digit position will include a negative symbol (-) after the 9.

Press the Enter button, at any time, to accept a setting or Menu button to exit without saving changes.

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Setting Up the Meter (setup)

The Setup menu is used to select:

1. Input signal the meter will accept for channel A and channel B

2. Units for A & B rate, total & grand total, and C

3. Decimal positions for A & B rate, total, and grand total, and C

4. Program the meter using the scale, calibrate, & total functions

5. Display parameters and intensity

6. Relay assignments and operation

7. 4-20 mA analog output scaling

Press the Menu button to exit at any time.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Setting the Input Signal (Input)

Enter the Input menu to set up the meter to display current (nmA) or voltage (Volt) inputs for channel A and channel B.

The current input is capable of accepting any signal from 0 to 20 mA. Select current input to accept 0-20 mA or 4-20 mA signals.

The voltage input is capable of accepting any signal from -10 to +10 VDC. Select voltage input to accept 0-5, 1-5, 0-10, or 10 VDC signals.

Channel C is the Math Function calculation, which is set up in the Advanced Features menu.

Setting the Totalizer Features (total)

To simply not display the total, select alternative display parameters in the display (dsplay) menu.

Enable or disable the totalizer features by selecting

“Yes” or “no” after the input type has been set up for

each channel. If the totalizer features are disabled, all the totalizer features and functions are hidden from the menus. Level and process meter features and functions are added to the menus.

If disabling the total parameter by selecting no, please refer to the PD2-6060 manual for instructions on setting up the meter parameters.

Notes:

1. The totalizer continues working in the background.

2. When selecting "no" for Total for a channel, the meter now functions as a PD2-6060 Dual-Input Process Meter for parameters that affect that channel. We strongly suggest that you download and use the PD2-6060 instruction while in this mode of operation.

Setting the Rate, Total, & Grand Total Units/Tags (units)

Enter the channel A and B rate, total, grand total, and math channel C units (or custom tags) that will be displayed if alternating units is selected in the units menu, or d unit is selected as the lower display parameter.

See the Setting the Display Parameters & Intensity (dsplay) flow chart on page 34 for details on accessing the Units menu and parameters. Ch-A and Ch-B set the rate units, tot-A and tot-B the total units, and Gtot-A and Gtot-B the grand total units. Ch-C sets the units for the math channel C.

See the Setting the Display Parameters & Intensity (dsplay) flow chart on page 34 to access the display menu to show the unit or tag on the lower display.

The engineering units or custom legends can be set using the following 7-segment character set:

Display

Character

Display

Character

k K 1

n m

n n 4

O O 5

q q 8

r r 9

u u C

v V c

y Y f

z Z g

[ ] h

] [ I

Degree(<)

Space

Notes:

1. Degree symbol represented by (<) if programming with MeterView Pro.

2. The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted one position.

3. Press and hold up arrow to auto-scroll the characters in the display.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Setting the Decimal Point (dEc pt)

The decimal point for any channel, rate, total, or grand total, may be set with up to five decimal places or with no decimal point at all.

Pressing the Right arrow moves the decimal point one place to the right until no decimal point is displayed, and then it moves to the leftmost position. Pressing the Up arrow moves the decimal point one place to the left.

There are seven decimal points to set up for three channels: Ch-A rate, total, and grand total; Ch-B rate, total, and grand total; and Ch-C.

After the decimal points are set up, the meter moves to the Program menu.

Programming the Rate/Totalizer (prog)

The meter may either be scaled (SCALE) without applying an input or calibrated (Cal) by applying an input. The meter comes factory calibrated to NIST standards, so for initial setup, it is recommended to use the (SCALE) function.

The Program menu contains the following menus:

1. Scale channel A and B without a signal

source

2. Calibrate channel A and B with a calibrated

signal source

3. Channel A and B total time base &

conversion factors

4. Channel A and B grand total time base &

conversion factors

5. Channel A and B reset modes for total &

grand total

The process inputs may be calibrated or scaled to any display value within the range of the meter.

Note: The Scale and Calibrate 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 menu prior to scaling and calibration of the meter. See Multi-Point Linearization (Linear) menu on page 50 for details.

Additional parameters, not needed for most applications, are found in the Advanced Features menu; see Advanced Features Menu on page 46.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Input Calibration Method (InCAL)

There are two methods of calibrating (or scaling) the display for each input channel to show the correct engineering units.

• Use the Scale menu to enter the scaling without a signal source.

• Use the Calibrate menu to apply a signal from a signal source.

Scaling the Meter without a Signal Source (SCAL-A, SCAL-B)

The process inputs (4-20 mA, 10 VDC) can be scaled to display the process variables in engineering units. A signal source is not needed to scale the meter; simply program the inputs and corresponding display values.

From the INCAL menu, select channel A or B, followed by SCal-A or SCal-B, and then set the input signal value and display value for each of the scaling points (default is two).

Scaling the Meter for Channel A (SCal-A)

Scaling the Meter for Channel B (SCal-B)

For instructions on how to program numeric

values see Setting Numeric Values, page 28.

Error Message (Error)

An error message indicates that the calibration or scaling process was not successful.

After the error message is displayed, the meter reverts to input 2 during calibration or scaling and to input 1 during internal calibration, allowing the appropriate input signal to be applied or programmed.

The error message might be caused by any of the following conditions:

1. Input signal is not connected to the proper terminals or it is connected backwards.

2. 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.

Input Range

Input 1 & Input 2 Span

4-20 mA

0.15 mA

10 VDC

0.10 VDC

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Calibrating the Meter with External Source

To scale the meter without a signal source, refer to

Scaling the Meter without a Signal Source (SCAL-A,

SCAL-B) on page 32.

The meter can be calibrated to display the process variables in engineering units by applying the appropriate input signal and following the calibration procedure.

The use of a calibrated signal source is strongly recommended to calibrate the meter.

Warm up the meter for at least 15 minutes before

performing calibration to ensure specified

accuracy.

Calibrating the Meter for Channel

A (CAL-A)

Note: Inputs for the above example are: Input 1: 4.00 mA; Display 1: 0.0 Gallons Input 2: 20.00 mA; Display 2: 5000.0 Gallons

Calibrating the Meter for Channel

B (CAL-B)

Note: Inputs for the above example are: Input 1: 4.00 mA; Display 1: 0.0 Gallons Input 2: 20.00 mA; Display 2: 18000.0 Gallons

Total & Grand Total Setup (tsetup)

The time base and total conversion factor, and grand total conversion factor for input channels A and B are located in the Totalizer Setup menu.

The time base is based on the rate of flow. Total & grand total conversion factors for channel A and B are programmed independently. 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.

Total & Grand Total Reset

Total reset menus are located in the Program menu. The totals can be programmed for manual or automatic reset. In the automatic reset mode, a programmable time delay is available to reset the total or grand total after the assigned preset is reached. The totals can also be reset via the front panel button, via a switch across the F4 terminal, digital inputs, or via a Modbus command.

Password Protected and NonResettable Total

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 Total Reset Password & Non-Resettable Total on page 45 for details.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Setting the Display Parameters & Intensity (dsplay)

Display line 1 (line 1) can be programmed to display:

1. Ch-A rate (D Ch-A)

2. Ch-B rate (D Ch-B)

3. Ch-C math channel (D Ch-C)

4. Toggle Ch-A & Ch-B rate (D AB)

5. Toggle Ch-A rate and Ch-C (D AC)

6. Toggle Ch-B rate and Ch-C (D BC)

7. Toggle Ch-A & Ch-B rate, and Ch-C (D ABC)

8. Ch-A total (D T-A)

9. Ch-B total (D T-B)

10. Ch-A grand total (D GT-A)

11. Ch-B grand total (D GT-B)

12. Toggle Ch-A rate and total (D RT-A)

13. Toggle Ch-B rate and total (D RT-B)

14. Toggle Ch-A rate and grand total (DRGT-A)

15. Toggle Ch-B rate and grand total (DRGT-B)s

16. Relay set points (1-4) (DSET 1 to DSET 4)

17. Max, min, and max & min values for Ch-A, Ch-B, or Ch-C (D Hi-A to d HL-C)

18. Toggle Ch-A rate & units (d A-u)

19. Toggle Ch-B rate & units (d B-u)

20. Toggle Ch-C & units (d C-u)

21. Toggle Ch-A total & units (d TA-u)

22. Toggle Ch-B total & units (d TB-u)

23. Toggle Ch-A total and Ch-B total (d tAb)

24. Toggle Ch-A total, Ch-B total, and the sum of total A + total B (d tABC)*

25. Modbus input (nm bus)

*Note: The (C = sum of total A + total B) displayed with the selection (d tABC) is different than the math channel C calculated under the Math menu functions. Example: (C = Rate Ch-A + Rate Ch-B).

Display line 2 (Line 2) can be programmed to display:

1. All options for display line 1

2. Off, with no display (d ofF)

3. Engineering units for any single channel, total, or grand total

Display Parameter Menu

After setting up the input and display, press the Menu button to exit programming and skip the rest of the setup menu.

Customizable Displays

The displays can be set up to read input channels (A or B), rate, total, or grand total, math function channel C, toggle between A & B, B & C, A & C, A & B & C, toggle between channels A, B, or C & units, the max/min of any of the channels, including the math channel (C), set points, or the Modbus input. This allows the display to be setup to display whatever variables are most valuable to the application. Here are just a few examples.

Display Intensity (d-Inty)

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

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Setting the Relay Operation (relay)

This menu is used to set up the assignment and operation of the relays.

• During setup, the relays do not follow the input and they will remain in the state found prior to entering the Relay menu.

1. Relay assignment

a. Channel A rate, total, or grand total b. Channel B rate, total, or grand total c. Channel C (Math channel) d. Modbus

2. Relay action

a. Automatic reset only (non-latching) b. Automatic + manual reset at any time

(non-latching) c. Latching (manual reset only) d. Latching with Clear (manual reset only

after alarm condition has cleared) e. Pump alternation control (automatic

reset only) f. Sampling (the relay is activated for a

user-specified time) g. Off (relay state controlled by Interlock

feature)

3. Set point

4. Reset point

5. Fail-safe operation a. On (enabled) b. Off (disabled)

6. Time delay a. On delay (0-999.9 seconds) b. Off delay (0-999.9 seconds)

7. Relay action for loss (break) of 4-20 mA input (ignore, on, off)

Setting the Relay Assignment (asSign)

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

Setting the Relay Action (Act)

Operation of the relays is programmed in the Action menu. The relays may be set up for any of the following modes of operation:

1. Automatic reset (non-latching)

2. Automatic + manual reset at any time (nonlatching)

3. Latching (manual reset only, at any time)

4. Latching with Clear (manual reset only after alarm condition has cleared)

5. Pump alternation control (automatic reset only)

6. Sampling (the relay is activated for a userspecified time)

7. Off (relay state controlled by Interlock feature)

The following graphic shows relay 1 action setup; relay 2-4 are set up in a similar fashion.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Programming Set and Reset Points

High alarm indication: program set point above reset point. Low alarm indication: program set point below reset point. The deadband is determined by the difference between set and reset points. Minimum deadband is one display count. If the set and reset points are programmed with the same value, the relay will reset one count below the set point.

Note: Changes are not saved until the reset point has been accepted.

Setting Fail-Safe Operation

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

Programming Time Delay

The On and Off time delays may be programmed for each relay between 0 and 999.9 seconds. The relays will transfer only after the condition has been maintained for the corresponding time delay.

The On time delay is associated with the set point. The Off time delay is associated with the reset point.

Relay Action for Loss of 4-20 mA Input (Loop Break)

The loop break feature is associated with the 4-20 mA input. Each relay may be programmed to go to one of the following conditions when the meter detects the loss of the input signal (i.e. < 0.005 mA):

1. Turn On (Go to alarm condition)

2. Turn Off (Go to non-alarm condition)

3. Ignore (Processed as a low signal condition)

Note: This is not a true loop break condition; if the

signal drops below 0.005 mA, it is interpreted as a “loop break” condition.

The following graph shows the loop break relay operation for a high alarm relay.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Relay and Alarm Operation Diagrams

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

High Alarm Operation (Set > Reset)

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

Low Alarm Operation (Set < Reset)

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

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

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

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

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

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Time Delay Operation

The following graphs show the operation of the time delay function.

When the signal crosses the set point, the On time delay timer starts and the relay trips when the time delay has elapsed. If the signal drops below the set point (high alarm) before the time delay has elapsed, the On time delay timer resets and the relay does not change state. The same principle applies to the Off time delay.

Note: If “Automatic or Manual (A-nmAn)” reset mode is selected, the LED follows the reset point and not the relay state when the relay is acknowledged.

Total Relay Sampling Operation

When the total reaches the preset, the relay trips and the sample time starts. After the sample time has elapsed, the relay resets. The cycle repeats every time the preset value is added to the total.

Preset = 100

100

Relay

LED

Total

200

300

Sample

Time

Sample

Time

Sample

Time

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Pump Alternation Control Operation

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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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Relay Operation Details

Overview

The four-relays option for the meters expands its usefulness beyond simple indication to provide users with alarm and control functions. Typical applications include high and low temperature, level, pressure or flow alarms, control applications such as simple on/off pump control, and pump alternation control for up to 4 pumps. There are four basic ways the relays can be used:

1. High and Low Alarms with Latching or NonLatching Relays

2. Simple On/Off Control with 100% Adjustable Deadband

3. Sampling (Based on Time)

4. Pump Alternation Control for up to 4 Pumps

Relays Auto Initialization

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

Fail-Safe Operation

The following table indicates how the relays behave based on the fail-safe selection for each relay:

Fail-Safe Selection

Non-Alarm State

Alarm State

Power Failure

Off

Open

Closed

Open

Relays go to nonalarm state

Closed

Open

Closed

Relays go to alarm state

Note: NO = Normally Open, NC = Normally Closed.

This refers to the condition of the relay contacts when the power to the meter is off.

Front Panel LEDs

The alarm status LEDs on the front panel are available on all meters, even those without relays installed, and provide status indication for the following:

LED

Status

Alarm 1

Alarm 2

Alarm 3

Alarm 4

The meter is supplied with four alarm points that include front panel LEDs to indicate alarm conditions. This standard feature is particularly useful for alarm applications that require visual-only indication. The LEDs are controlled by the set and reset points programmed by the user. When the display reaches a set point for a high or low alarm, the corresponding alarm LED will turn on. When the display returns to the reset point the LED will go off. The front panel LEDs responds differently for latching and nonlatching relays.

For non-latching relays, the LED is always off during normal condition and always on during alarm condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).

For latching relays, the alarm LEDs reflects the status of the relays, regardless of the alarm condition. The following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge button (Default: F3 key assigned to ACK).

Latching and Non-Latching Relay Operation

The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation.

Relay terminology for following tables

Terminology

Relay Condition

Alarm (Tripped)

Off

Normal (Reset)

Ack

Acknowledged

The On and Off terminology does not refer to the status of the relay’s coil, which depends on the failsafe mode selected.

• In latching relay mode, if Fail-Safe is off, latched relays will reset (unlatch) when power is cycled.

Alarm #

HI or LO

Alarm

Set

Point

Reset Point

Power-

Reading

Relay &

LED

1000

500

499

Off

700

900

499

250

400

499

Off

450

200

499

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Instruction Manual

Non-Latching Relay (Auto)

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

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

In this application, the meter is set up for automatic and manual reset at any time (non-latching relay). The LED and the relay automatically reset when the meter returns to the normal condition.

In addition, the relay can be manually reset while the alarm condition still exists, but the LED will stay on until the meter returns to the normal condition.

Automatic + manual reset at any time

Condition

LED

Relay

Normal

Off

Alarm

Normal

Off

Next Alarm

Ack

Off

Normal

Off

Latching Relay (LatcH)

In this application, the meter is set up for manual reset at any time. Acknowledging the alarm even if the alarm condition is still present resets the relay and turns off the LED.

Manual reset any time

Condition

LED

Relay

Normal

Off

Alarm

Ack

Off

Latching Relay with Clear (Lt-Clr)

In this application, the meter is set up for manual reset only after the signal passes the reset point (alarm condition has cleared). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm is acknowledged after it returns to the normal state, the LED and the relay go off. Notice that the LED remains on, even after the meter returns to the normal condition. This is because, for latching relays, the alarm LED reflects the status of the relay, regardless of the alarm condition.

Manual reset only after

alarm condition has cleared

Condition

LED

Relay

Normal

Off

Alarm

Ack (No effect)

Normal

Ack

Off

Light / Horn / Button Accessories

Add visible and audible ways to indicate

alarm conditions on any Helios meter with

the MOD-PD2LH Light / Horn / Button

accessories. The light with built-in 85 dB

horn, and button come mounted and wired

to the Helios. Meter and accessories are ordered as separate items. See Ordering

Information on page 6.

Automatic reset only

Condition

LED

Relay

Normal

Off

Alarm

Ack (No effect)

Normal

Off

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Acknowledging Relays

There are three ways to acknowledge relays programmed for manual reset:

1. Via the programmable front panel function keys F1-F3 (Example: F3 assigned to ACK).

2. Remotely via a normally open push button wired to the F4 terminal.

3. Remotely via a normally open push button wired to one of the digital inputs and the +5 V terminal on the digital I/O connections.

When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are acknowledged.

Acknowledging Relays with Remote Control Station

Relays may be remotely acknowledged by connecting the PDA2361-A to either the F4 terminal or a digital input as described above.

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.

Set and Reset Point Programming

Relay

Set Point

Reset Point

Function

30.000

10.000

Controls pump #1

35.000

5.000

Controls pump #2

4.000

9.000

Controls low alarm

40.000

29.000

Controls high alarm

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 to 10.000 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.

MENU RIGHT UP ACK

ACK

MENU RESET

MAX

ENTER

P- F4P+ COM V+

3412 5

mA+ COM V+ mA+

7869

O1 O2 O3 O4 G

I1 I2 I3 I4+5

Ground

5 VDC

ACK

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Setting Up the Interlock Relay (Force On) Feature

Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature:

1. Access the Setup – Relay – Action menu and set the action to off.

2. In the Advanced features – User menu program

any of the digital inputs to Force On any of the internal relays (1-4).

3. Connect a switch or dry contact between the +5V

terminal and the corresponding digital input (dI-1 to dI-4) terminal.

Interlock Relay Operation Example

Relays 1 & 2 are configured to energize (their front panel LEDs are steady on) when SW1 & SW2 switches (above) are closed. If the contacts to these digital inputs are opened, the corresponding front panel LEDs flash, indicating this condition. The processes being controlled by the interlock relay will stop, and will re-start only after the interlock relay is re-activated by the digital inputs (switches).

Note: If multiple digital inputs are assigned to the same relay, then the corresponding logic is (AND) – i.e. both switches must be closed to trip the relay.

• If the digital inputs are assigned to the Interlock Function, then they cannot be used to program

the meter remotely.

O1 O2 O3 O4 G

I1 I2 I3 I4+55 VDC

SW1

SW2

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Scaling the 4-20 mA Analog Output (Aout)

The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected. To select the channel and source assignments the analog output is assigned to, see Analog Output Source on page 52.

No equipment is needed to scale the analog output; simply program the display values to the corresponding mA output signal.

The Analog Output menu is used to program the 4-20 mA outputs based on display values.

For further details, see Setting Numeric Values

on page 28, Analog Output Value for Loss of

4-20 mA Input (Loop Break) on page 52.

Reset Menu (reset)

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

Manual Control Menu (Contrl)

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

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Setting Up the Password (pass)

The Password menu is used for programming three levels of security to prevent unauthorized changes to the programmed parameter settings, to restrict the ability to reset the totals and grand totals, and to program the non-resettable totalizer.

Pass 1: Allows use of function keys and digital inputs Pass 2: Allows use of function keys, digital inputs and editing set/reset points Pass 3: Restricts all programming, function keys, and digital inputs. Total: Prevents resetting the total manually Gtotal: Prevents resetting the grand total manually

Protecting or Locking the Meter Functions

Enter the Password menu and program a six-digit password.

For instructions on how to program numeric values see Setting Numeric Values on page 28.

Total Reset Password & NonResettable Total

The total and the grand total can be passwordprotected to prevent unauthorized total resets.

The grand total can be programmed as a non-

resettable total by entering the password “050873”.

• Once the Grand Total has been programmed as

“non-resettable” the feature CANNOT be disabled.

Making Changes to a Password Protected Meter

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

Disabling Password Protection

To disable the password protection, access the Password menu and enter the correct password twice, as shown below. The meter is now unprotected until a new password is entered.

If the correct six-digit password is entered, the meter displays the message unLoc (unlocked) and the protection is disabled until a new password is programmed.

If the password entered is incorrect, the meter displays the message Locd (Locked) for about two seconds, and then it returns to Run Mode. To try again, press Enter while the Locked message is displayed.

Did you forget the password?

The password may be disabled by entering a master password once. If you are authorized to make changes, enter the master password 508655 to unlock the meter.

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Advanced Features Menu

To simplify the setup process, functions not needed for most applications are located in the Advanced Features menu.

Press and hold the Menu button for three seconds to access the advanced features of the meter.

Advanced Features Menu & Display Messages

The following table shows the functions and messages of the Advanced Features menu in the order they appear in the menu.

Advanced Features Menu & Display Messages

Display

Parameter

Action/Setting

filtEr

Filter

Set noise filter value

Ch-A

Channel A

Set filter value for channel A

Ch-b

Channel B

Set filter value for channel B

bypASs

Bypass

Set filter bypass value

Ch-A

Channel A

Set filter bypass value for channel A

Ch-b

Channel B

Set filter bypass value for channel B

Round

Set the rounding value for display variables

seriAl

Serial

Set serial communication parameters

SlaVId

Slave ID

Set slave ID or meter address

Baud

Baud rate

Select baud rate

Tr dLY

Transmit delay

Set transmit delay for serial communication

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

Input signal conditioning

Select linear, square root, programmable exponent, or round horizontal tank function

Ch-A

Channel A

Select menu for channel A

Advanced Features Menu & Display Messages

Display

Parameter

Action/Setting

Ch-b

Channel B

Select menu for channel B

Linear

Set meter for linear function and select number of linearization points

No pts

Number of points

Set the number of linearization points (default: 2)

Square

Square root

Set meter for square root extraction

Prog E

Programmable exponent

Set meter for programmable exponent and enter exponent value

nmath

Math

Enter the setup menu for channel C math functions

Sunm

Sum

C = (A+B+P)*F

Dif

Difference

C = (A-B+P)*F

difabs

Absolute difference

C = ((Absolute value of (AB))+P)*F

AVg

Average

C = (((A+B)/2)+P)*F

nmulti

Multiplication

C = ((A*B)+P)*F

DiVide

Divide

C = ((A/B)+P)*F

Hi-ab

Max of A or B

C = ((High value of channel A or B)+P)*F

Lo-ab

Min of A or B

C = ((Low value of channel A or B)+P)*F

Drauw

Draw

C = ((A/B)-1)*F

uw Avg

Weighted avg.

C = ((B-A)*F)+A

ratio

Ratio

C = (A/B)*F

Ratio2

Ratio 2

C = ((B-A)/A)+P)*F

Concen

Concentration

C = (A/(A+B))*F

Sunm t

Sum total

C = (tA+tB+P)*F

Sunmgt

Sum grand total

C = (GtA+GtB+P)*F

Dif t

Difference of total

C = (tA-tB+P)*F

Dif gt

Diff. of grand total

C = (GtA-GtB+P)*F

Tratio

Total ratio

C = (tA/tB)*F

t-rat2

Total ratio 2

C = ((tB-tA)/tA)*F

T pct

Total percent

C = (tA/(tA+tB))*100

Const

Constant

Enter math equation constants

adder

Adder

Addition constant used in channel C math calculations (P)

factor

Factor

Multiplication constant used in channel C math calculations (F)

CutofF

Cutoff

Set low-flow cutoff

Ch-A

Channel A

Set low-flow cutoff for Channel A

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Advanced Features Menu & Display Messages

Display

Parameter

Action/Setting

Ch-b

Channel B

Set low-flow cutoff for Channel B

Count

Set total count direction

Ch-A

Channel A

Set total count direction for Channel A

Ch-b

Channel B

Set total count direction for Channel B

Tot C

Total count

Set direction of total count

Gtot C

Grand total count

Set direction of grand total count

Count up

Douwn

Count down

C strt

Count start

Enter count down start value

AoutPr

Analog output programming

Program analog output parameters

Aout*

Analog output

Program analog output parameters

Source

Select source for the 4-20 mA output

break

Loop break

Set analog output value if input loop break is detected

Calib

Calibrate

Calibrate 4-20 mA output (internal reference source used for scaling the output)

4 nmA

4 mA output

Enter mA output value read by milliamp meter with at least 0.001 mA resolution

20 nmA

20 mA output

Enter mA output value read by milliamp meter with at least 0.001 mA resolution

O-rang

Overrange

Program mA output for display overrange

u-rang

Underrange

Program mA output for display underrange

nmAx

Maximum

Program maximum mA output allowed

nmin

Minimum

Program minimum mA output allowed

User

User I/O

Assign function keys and digital I/O

F1*

F1* function key

Assign F1 function key (*F1/F2/F3)

F4 digital input

Assign F4 function (digital input)

dI I

Digital input 1

Assign digital input 1 – 4

dO 1

Digital output 1

Assign digital output 1 – 4

ICal

Internal calibration

Enter internal calibration (used for recalibrating the meter with a calibrated signal source)

Ch-A

Channel A

Perform calibration on channel A

Advanced Features Menu & Display Messages

Display

Parameter

Action/Setting

Ch-b

Channel B

Perform calibration on channel B

C CAL

Current calibration

Calibrate 4-20 mA current input (internal reference source used for scaling the input)

C lo

Current low

Calibrate low current input (e.g. 4 mA)

C Hi

Current high

Calibrate high current input (e.g. 20 mA)

V CAL

Voltage calibration

Calibrate voltage input

V Lo

Voltage low

Calibrate low voltage input (e.g. 0 V)

V Hi

Voltage high

Calibrate high voltage input (e.g. 10 V)

Diag

Diagnostics

Display parameter settings

LED t

LED test

Test all LEDs

Info

Information

Display software number and version

erase

Erase

Erase MeterView Pro

software stored in meter’s

memory

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Noise Filter (filter)

The noise filter is available for unusually noisy signals that cause an unstable process variable display. The noise filter averages the input signal over a certain period. The filter level determines the length of time over which the signal is averaged. The filter level can be set between 2 and 199. The higher the filter level, the longer the averaging time and so the longer it takes the display to settle to its final value. Setting the filter level to zero disables the filter function.

Noise Filter Bypass (bypass)

The noise filter bypass changes the behavior of the meter so that small variations in the signal are filtered out but large abrupt changes in the input signal are displayed immediately. The bypass value determines the minimum amount of signal change to be displayed immediately. All signal changes smaller than the bypass value are filtered or averaged by the meter. The noise filter bypass may be set between 0.1 and

99.9% of full scale.

Rounding Feature (round)

The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used in addition to the filter function.

Rounding causes the display to round to the nearest value according to the rounding selected. This setting affects the last two digits, regardless of decimal point position. See examples below:

Rounding Selection

Actual Value

Display Value

Actual Value

Display Value

12.022

12.023

12.022

12.020

12.023

12.025

12.024

12.020

12.025

12.030

Modbus RTU Serial Communications (serial)

The meter is equipped with serial communications capability as a standard feature using Modbus RTU Serial Communication Protocol.

The meter may be connected to a PC for initial configuration via the onboard USB connection. For ongoing digital communications with a computer or other data terminal equipment, use the RS-485 connection with the appropriate serial converter; see Ordering Information on page 6 for details.

• DO NOT connect any equipment to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.

• DO NOT disconnect the RJ45 connector located to the left of the power terminal block. Doing so will disable the on-board digital I/O, and the RS-485 serial communications.

Notes:

1. More detailed instructions are provided with each optional serial communications adapter.

2. Refer to the Helios Modbus Register Tables located at www.predig.com for details.

When using more than one meter in a multi-drop mode, each meter must be provided with its own unique address. The meter address (Slave ID) may be programmed between 1 and 247. The transmit delay may be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.

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Select Menu (SElect)

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

Input Signal Conditioning (Functn)

The Function menu is used to select the input signal conditioner applied to the input signal: linear, square root, or programmable exponent. Multi-point linearization is part of the linear function selection. Each input channel input signal conditioner is programmed independently.

Meters are set up at the factory for linear function with 2-point linearization. The linear function provides a display that is linear with respect to the input signal.

Square Root Linearization (Square)

The square root function is used to calculate flow measured with a differential pressure transmitter. The flow rate is proportional to the square root of the differential pressure. Scale the meter so that the low input signal (e.g. 4 mA) is equal to zero flow and the high input signal (e.g. 20 mA) is equal to the maximum flow.

Programmable Exponent Linearization (Prog E)

The programmable exponent function is used to calculate open-channel flow measured with a level transmitter in weirs and flumes. The flow rate is proportional to the head height. Scale the meter so that the low input signal (e.g. 4 mA) is equal to zero flow and the high input signal (e.g. 20 mA) is equal to the maximum flow. This method works well for all weirs and flumes that have a simple exponent in the flow calculation formula. For weirs and flumes with complex exponents it is necessary to use a strapping table and the 32-point linearization of the meter.

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Multi-Point Linearization (Linear)

Meters are set up at the factory for linear function with 2-point linearization. Up to 32 linearization points can be selected for each channel under the linear function. The multi-point linearization can be used to linearize the display for non-linear signals such as those from level transmitters used to measure volume in odd-shaped tanks or to convert level to flow using weirs and flumes with complex exponent.

Note: After Scale is displayed continue pressing the Enter button until the meter completes the scaling of the input and display values.

Math Function (nmath)

The Math menu is used to select the math function that will determine the channel C value. These math functions are a combination of input channels A and B, and will display when channel C is selected in the Display menu.

A and B refer to the rate of channel A and B. tA and tB refer to the totals of channel A and B. GtA and GtB refer to the grand totals of channel A and B. The following math functions are available.

Function

Display

Description

Sunm

Sum

C = (A+B+P)*F

Dif

Difference

C = (A-B+P)*F

difabs

Absolute difference

C = ((Absolute value of (A-B))+P)*F

AVg

Average

C = (((A+B)/2)+P)*F

nmulti

Multiplication

C = ((A*B)+P)*F

DiVide

Divide

C = ((A/B)+P)*F

Hi-ab

Max of A or B

C = ((High value of channel A or B)+P)*F

Lo-ab

Min of A or B

C = ((Low value of channel A or B)+P)*F

Drauw

Draw

C = ((A/B)-1)*F

uw Avg

Weighted avg.

C = ((B-A)*F)+A

ratio

Ratio

C = (A/B)*F

Ratio2

Ratio 2

C = ((B-A)/A)+P*F

Concen

Concentration

C = (A/(A+B))*F

Sunm t

Sum total

C = (tA+tB+P)*F

Sunmgt

Sum grand total

C = (GtA+GtB+P)*F

Dif t

Difference of total

C = (tA-tB+P)*F

Dif gt

Diff. of grand total

C = (GtA-GtB+P)*F

Tratio

Total ratio

C = (tA/tB)*F

t-rat2

Total ratio 2

C = ((tB-tA)/tA)*F

T pct

Total percent

C = (tA/(tA+tB))*100

Math Constants (Const)

The Math Constants menu is used to set the constants used in channel C math. The math functions include adder constant P, and factor constant F.

The Adder constant (P) may be set from -99.999 to

999.999.

The Factor constant (F) may be set from 0.001 to

999.999.

The chart on page 50 details the math functions that may be selected in the Math Function menu.

Low-Flow Cutoff (CutofF)

The low-flow cutoff feature allows the meter to be programmed so that the often-unsteady output from a differential pressure transmitter, at low flow rates, always displays zero on the meter. The low-flow cutoff for each channel is programmed independently. The cutoff can be disabled to display negative values.

The cutoff value may be programmed from 0.1 to

999999. The meter will display zero below the cutoff

value. Programming the cutoff value to zero disables the cutoff feature. The cutoff can be disabled to display negative values.

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Totalizer Count Up/Down (Count)

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

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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

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

Analog Output Source

The analog output source can be based on either of the input channel rate, total, or grand totals (Ch-A, Ch-B), the math channel (Ch-C), maximum stored value of either input channel (Hi-A, Hi-B), minimum stored value of either input channel (Lo-A, Lo-B), relay set points, or the Modbus input.

To base an analog output on the rate, total, or grand total of channels A or B, select the channel in the Analog Output Source menu. Then select the rate, total, or grand total as the source reference for the output, and program the output scale.

Analog Output Value for Loss of 4-20 mA Input (Loop Break)

The AoutPr - Break menu is used to force the analog output to go to a user-specified mA value if a break condition is detected in the 4-20 mA input loop. Selecting Ignore causes the mA output to go to the minimum value.

Analog Output Calibration

To perform the analog output calibration, it’s

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.

Analog Output Calibration Procedure

1. Wire the PD2-6262 4-20 mA output to a current loop that includes a power supply (internal or external 12 to 24 VDC), and the mA input on the digital meter. See Figure 25. 4-20 mA Output Connections on page 22 for details.

2. Turn on all devices. Allow for a 15 to 30 minute warm-up.

3. Go to the Advanced Features menu, and navigate to the Analog Output Programming (AoutPr)/Calibration (Calib) menu and press Enter.

4. The display will show 4 nmA. The PD2-6262 mA output should now be close to 4 mA. Press Enter and the display will show 04.000. Enter the actual value read by the digital mA meter and press Enter.

5. The display will show 20 nmA. The PD2-6262 mA output should now be close to 20 mA. Press Enter and the display will show 20.000. Enter the actual value read by the digital mA meter and press Enter.

6. The meter will now calculate the calibration factors and store them.

7. Press Menu to exit and return to Run mode.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

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Programmable Function Keys User Menu (user)

The User menu allows the user to assign the programming buttons function keys F1, F2, and F3, the digital input F4 (located on the input signal connector), and four digital inputs (located on the digital I/O connector) to access most of the menus or to activate certain functions immediately (e.g. reset totals, reset max & min, hold relay states, etc.). This allows the meter to be greatly customized for use in specialized applications.

The four digital outputs can be assigned to a number of actions and functions executed by the meter (i.e. alarms, relay acknowledgement, reset totals, reset max, min, or max & min, tare, and reset tare). The digital outputs can be used to trigger external alarms or lights to indicate these specific events.

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Function Keys & Digital I/O Available Settings

Refer to the following table for descriptions of each available function key or digital I/O setting.

Function Keys & Digital I/O Available Settings

Display

Description

Rst Hi

Reset the stored maximum display values for all channels

Rst Lo

Reset the stored minimum display values for all channels

Rst HL

Reset the stored maximum & minimum display values for all channels

relay

Directly access the relay menu

Set 1*

Directly access the set point menu for relay 1 (*through 4)

Rly d

Disable all relays until a button assigned to enable relays (Rly E) is pressed

Rly E

Enable all relays to function as they have been programmed

O Hold

Hold current relay states and analog output as they are until a button assigned to enable relays (Rly E) is pressed

d Hold

Hold the current display value, relay states, and analog output momentarily while the function key or digital input is active. The process value will continue to be calculated in the background.

D AbC

Scrolls values for A, B & C when activated. Keeps the last value for 10 seconds and then it returns to its assignment. Values are displayed on display line 1 and the corresponding channel and units on display line 2.

d tot

Scrolls through totals for channels A, B, and C (which is the sum of A and B). Values are displayed on display line 1.

D gtot

Scrolls through grand totals for channels A, B, and C (which is the sum of A and B). Values are displayed on display line 1.

Ln1 Hi

Display maximum channel A display value on line 1

Ln1 Lo

Display minimum channel A display value on line 1

Ln1 HL

Display maximum & minimum channel A display values on line 1

Ln2 Hi

Display maximum channel B display value on line 2

Ln2 Lo

Display minimum Channel B display value on line 2

Ln2 HL

Display maximum & minimum channel B display values on line 2

Function Keys & Digital I/O Available Settings

Display

Description

Ln2 HC

Display minimum channel C display value on line 2

Ln2 HC

Display maximum & minimum channel C display values on line 2

LitHLC

Display maximum channel C display value on line 2

F On 1*

Force relay 1 (*through 4) into the on state. This function is used in conjunction with a digital input to achieve interlock functionality. See

Setting Up the Interlock Relay (Force On) Feature page 43 for details about

interlock relays.

Contrl

Directly access the Manual 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 totals for all channels

Rst gt

Reset grand totals for all channels

Rst ta

Reset total for channel A

Rst ga

Reset grand total for channel A

Rst tb

Reset total for channel B

Rst gb

Reset grand total for channel B

nmenu

Mimic the menu button functionality (digital inputs only)

rigHt

Mimic the right arrow/F1 button functionality (digital inputs only)

Mimic the up arrow/F2 button functionality (digital inputs only)

Enter

Mimic the enter/F3 button functionality (digital inputs only)

Alnm 1*

Provide indication when alarm 1 (*through 4) has been triggered (digital outputs only)

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Internal Calibration (ICAL)

The meter is factory calibrated prior to shipment

for milliamps and volts with calibration equipment

that is certified to NIST standards.

The use of calibrated signal sources is necessary to perform the internal calibration of the meter.

Check calibration of the meter at least every 12 months. Each input and input type must be recalibrated separately.

Notes:

1. If meter is in operation and it is intended to accept only one input type (e.g. 4-20 mA), recalibration of other input is not necessary.

2. Allow the meter to warm up for at least 15 minutes before performing the internal calibration procedure.

The Internal calibration menu is part of the Advanced Features menu.

1. Press and hold the Menu button for three seconds to access the advanced features of the meter.

2. Press the Up arrow button to scroll to the Internal calibration menu (ICAL) and press Enter.

3. Select channel A (Ch-A) or channel B (Ch-b) and press enter.

4. The meter displays either current calibration (C CAL) or voltage calibration (V CAL), according to the input setup. Press Enter to start the calibration process.

Example of Internal Calibration for current input:

5. The meter displays low input current message (C lo). Apply the low input signal and press Enter. The display flashes for a moment while the meter is accepting the low input signal.

6. After the display stops flashing, a number is displayed with the leftmost digit brighter than the rest. The bright digit is the active digit that can be changed by pressing the Up arrow button. Press the Right arrow button to move to the next digit.

7. Set the display value to correspond to the input signal being calibrated, typically 4.000 mA.

8. The display moves to the high input calibration (C Hi). Apply the high input signal and press Enter.

9. Set the display for the high input calibration, in the same way as it was set for the low input calibration, typically 20.000 mA.

The graphic above shows the calibration of the current input. The voltage input is calibrated in a similar way.

Tips:

• Low and high input signals can be any valid values within the range of the meter.

• Observe minimum input span requirements between input 1 and input 2.

• Low input should be less than high input signal.

Error Message (Error)

An error message indicates that the calibration or scaling process was not successful.

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.

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.

Input Range

Input 1 & Input 2 Span

4-20 mA

0.15 mA

10 VDC

0.10 VDC

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Meter Operation

The meter is capable of accepting two input channels (A and B) of either current (0-20 mA, 4-20 mA) or voltage signals (0-5 V, 1-5 V, 0-10 V,  10 V) and displaying these signals in engineering units from 99999 to 999999 (e.g. a 4-20 mA signal could be displayed as -50.000 to 50.000). A totalizer can be programmed to count the scaled engineering units, interpreting it as count per second, minute, hour, or day. The scaled rate and total for each channel can be displayed on the top or bottom displays.

A math function channel (C) is available to perform operations on channel A and B rates or totals, with adder and factor constants, and display the results. Engineering units or tags may be displayed with these three channels.

The dual-line display can be customized by the user. Typically, display line 1 is used to display the math channel C, while line 2 is used to alternate between displaying input channels A and B rate or total.

Additionally, the meter can be set up to display any input or math channel on line 1 and a unit or tag on line 2. The relays and analog output can be programmed to operate based on any input or math channel.

Button Operation

Button Symbol

Description

Press to enter or exit Programming Mode, view settings, or exit max/min readings

Press to reset max/min readings or other parameter/function assigned through the User menu

Press to display max/min readings or other parameter/function assigned through the User menu

Press to acknowledge relays or other parameters/function assigned through the User menu

Function Keys Operation

During operation, the programmable function keys operate according to the way they have been programmed in the Advanced Features – User menu. See Programmable Function Keys User Menu (user) on page 53 for details.

The table above shows the factory default settings for F1, F2, and F3.

Digital Inputs Operation

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

Maximum/Minimum Readings

The max & min readings (peak & valley) reached by the process can be displayed either continuously or momentary:

1. Display briefly by assigning to the F1-F3

function keys or to the digital inputs in the User menu.

2. Display continuously by assigning either

display to max/min through the Display menu.

Any of the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min readings. The meters are set at the factory to display the max/min reading by pressing the Up arrow/F2 button and to use the Right arrow/F1 button to reset the max/min.

To display max and min channel A reading using function key with factory defaults:

1. Press Up arrow/F2 button to display minimum reading of channel A since the last reset/powerup. The display will then display the maximum reading of channel A since the last reset/powerup.

2. To reset max/min press Right arrow/F1 button. The max & min displays are reset to actual values.

3. Press Menu to exit max/min display reading.

RIGHT

RESET

MAX

ACK

ENTER

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Troubleshooting

The rugged design and the user-friendly interface of the meter should make it unusual for the installer or operator to refer to this section of the manual. However, due to the many features and functions of

the meter, it’s possible that the setup of the meter

does not agree with what an operator expects to see. If the meter is not working as expected, refer to the

Diagnostics menu and recommendations below.

Diagnostics Menu (diag)

The Diagnostics menu is located in the Advanced Features menu. To access the Diagnostics menu, see Advanced Features Menu on page 46.

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 on page 46.

Testing the Display LEDs

To test all LEDs on the display:

1. Go to the Diagnostics menu (diAG) and press Enter button.

2. Press Up arrow button and scroll to LED Test menu (led t)

3. Press the Enter button to activate the LED Test. The meter will cycle through all digits, decimal points, and relay indicators to enable the operator to check that all LEDs are functioning properly.

4. Press the Enter button again to access the Information menu (info) or press the Menu button to return to Run Mode.

Determining Software Version

To determine the software version of a meter:

1. Go to the Diagnostics menu (diAG) and press Enter button.

2. Press Up arrow button and scroll to Information menu (Info).

3. Press Enter to access the software number (SFT) and version (UER) information. Write down the information as it is displayed. Continue pressing Enter until all the information is displayed.

4. The meter returns to Run Mode after displaying all the settings.

Reset Meter to Factory Defaults

When the parameters have been changed in a way

that is difficult to determine what’s happening, it might

be better to start the setup process from the factory defaults.

Instructions to load factory defaults:

1. Enter the Advanced Features menu. See Advanced Features Menu, page 46.

2. Press Up arrow to go to Diagnostics menu

3. Press and hold Right arrow for three seconds, press Enter when display flashes reset. Note: If Enter is not pressed within three seconds, the display returns to Run Mode.

4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory default settings.

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Factory Defaults & User Settings

The following table shows the factory setting for most of the programmable parameters on the meter.

Factory Defaults & User Settings

Parameter

Display

Default Setting

Input type

Input

Input type, channel A

Ch-A

4-20 mA

Input type, channel B

Ch-B

4-20 mA

Total, channel A

Ch-A

Yes

Total, channel B

Ch-B

Yes

Units

units

Rate unit, channel A

Ch-A

mA-A

Rate unit, channel B

Ch-B

mA-b

Unit, channel C

Ch-C

mA-C

Total unit, channel A

Tot-A

tot-A

Grand total unit, ch-A

Gtot-A

Total unit, channel B

Tot-b

tot-b

Grand total unit, ch-B

Gtot-b

Gtot-B

Decimal Point

Dec pt

Rate, channel A

rate

Total, channel A

Total

Grand total, channel A

gtotal

Rate, channel B

rate

Total, channel B

Total

Grand total, channel B

gtotal

Channel C

Ch-C

Number of points

No pts

Number of points, ch A

Ch-A

Number of points, ch B

Ch-B

Scaling, (channel A)

Scal a

Input 1, channel A

InP 1

4.000 mA

Display 1, channel A

Dis 1

4.000

Input 2, channel A

InP 2

20.000 mA

Display 2, channel A

Dis 2

20.000

Scaling (channel B)

Scal b

Input 1, channel B

InP 1

4.000 mA

Display 1, channel B

Dis 1

4.000

Input 2, channel B

InP 2

20.000 mA

Display 2, channel B

Dis 2

20.000

Total setup

Tsetup

Time base, channel A

Tbase

Sec

Total conversion factor, Ch-A

T CF

1.000

Grand total conversion factor, Ch-A

Gt CF

1.000 Time base, channel B

Tbase

Sec

Factory Defaults & User Settings

Parameter

Display

Default Setting

Total conversion factor, Ch-B

T CF

1.000

Grand total conversion factor, Ch-B

Gt CF

1.000 Total reset

Treset

Total reset, channel A

T rst

Manual

Grand total reset, Ch-A

Gt rst

Manual

Total reset, channel B

T rst

Manual

Grand total reset, Ch-B

Gt rst

Manual

Display assignment

Dsplay

Display line 1

D Ch-A

Channel A

Display line 2

d Ch-B

Channel B

Display intensity

d-Inty

Relay

Relay 1 assignment

Ch-A

Channel A total

Relay 1 action

Act 1

Automatic

Relay 1 set point

Set 1

100.0

Relay 2 assignment

Ch-A

Channel A total

Relay 2 action

Act 2

Automatic

Relay 2 set point

Set 2

200.0

Relay 3 assignment

Ch-A

Channel A rate

Relay 3 action

Act 3

Automatic

Relay 3 set point

Set 3

3.000

Relay 3 reset point

RSt 3

2.500

Relay 4 assignment

Ch-A

Channel A rate

Relay 4 action

Act 4

Automatic

Relay 4 set point

Set 4

4.000

Relay 4 reset point

RSt 4

3.500

Fail-safe relay 1 to 4

Fls 1

Off

On delay relay 1 to 4

On 1

0.0 sec

Off delay relay 1 to 4

Off 1

0.0 sec

Loop break relay 1 to 4

ignore

Ignore

Analog output

Aout

Display 1 analog out

Dis 1

4.000

Output 1 value

Out 1

4.000 mA

Display 2 analog out

Dis 2

20.000

Output 2 value

Out 2

20.000 mA

Source analog output

Source

Channel A

Overrange output

O-rang

21.000 mA

Underrange output

u-rang

3.000 mA

Loop break output

break

3.000 mA

Maximum output

nmAx

23.000 mA

Minimum output

nmin

3.000 mA

Filter

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Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Factory Defaults & User Settings

Parameter

Display

Default Setting

Filter, channel A

Ch-A

Filter, channel B

Ch-B

Bypass, channel A

bypass

0.2

Bypass, channel B

bypass

0.2

Round

Cutoff

Cutoff value, channel A

Ch-a

0.0 (disabled)

Cutoff value, channel B

Ch-b

0.0 (disabled)

Serial

Slave ID (Address)

SlaVId

247

Baud rate

baud

9600

Transmit delay

Tr dly

50 ms

Parity

Even

Byte-to-byte timeout

t-byt

010 (0.1 sec)

Math

nmath

Math, channel C

Sunm

Sum

Adder (constant P)

Adder

0.000

Factor (constant F)

Factor

1.000

User

user

F1 function key

Reset max & min

F2 function key

Line 1 Max & Min

F3 function key

Acknowledge relays

F4 function (digital input)

Acknowledge relays Digital input 1

DI 1

Digital input 2

DI 2

Right arrow

Digital input 3

DI 3

Up arrow

Digital input 4

DI 4

Enter

Digital output 1

DO 1

Alarm 1

Digital output 2

DO 2

Alarm 2

Digital output 3

DO 3

Alarm 3

Digital output 4

DO 4

Alarm 4

Password

pass

Password 1

Pass 1

000000 (unlocked)

Password 2

Pass 2

000000 (unlocked)

Password 3

Pass 3

000000 (unlocked)

Total

000000 (unlocked)

Grand total

gtotal

000000 (unlocked)

Page 60

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

Troubleshooting Tips

This meter is a highly sophisticated instrument with an extensive list of features and capabilities. If the front panel buttons are used to program the meter, it may be a difficult task to keep everything straight. That is why we strongly recommend the use of the free MeterView Pro software for all programming activities. A USB cable is provided with the meter for programming with MeterView Pro software.

If you have programmed the meter with the front panel buttons and it is not working as intended, try re-programming the meter using MeterView Pro software.

Symptom

Check/Action

No display at all

Check power at power connector

Not able to change setup or programming, Locd is displayed

Meter is password-protected, enter correct six-digit password to unlock

Meter does not respond to input change

If a Low-Flow Cutoff Value has been programmed, the meter will display zero below that point, regardless of the input – which can appear like the meter is not responding to an input change. Check to make sure the problem is not being caused by an undesired low-flow cutoff value. To prevent the display from showing a negative value, set the low-flow cutoff to a value greater than zero.

Meter displays error message during calibration (Error)

Check:

1. Signal connections

2. Input selected in Setup menu

3. Minimum input span requirements

Meter displays

1. 999999

2. -99999

Check:

1. Input selected in Setup menu

2. Corresponding signal at Signal connector

Display is unstable

Check:

1. Input signal stability and value

2. Display scaling vs. input signal

3. Filter and bypass values (increase)

Display response is too slow

Check filter and bypass values

Display reading is not accurate

Check:

1. Input signal conditioner selected: Linear, square root, etc.

2. Scaling or calibration

Display does not respond to input changes, reading a fixed number

Check:

1. Display assignment, it might be displaying max, min, or set point.

Display alternates between

1. Hi and a number

2. Lo and a number

Press Menu to exit max/min display readings.

Relay operation is reversed

Check:

1. Fail-safe in Setup menu

2. Wiring of relay contacts

Relay and status LED do not respond to signal

Check:

1. Relay action in Setup menu

2. Set and reset points

Flashing relay status LEDs

Relays in manual control mode or relay interlock switches opened.

Meter not communicating with application programs

Check:

1. Serial adapter and cable

2. Serial settings

3. Meter address and baud rate

If the display locks up or the meter does not respond at all

Cycle the power to reboot the microprocessor.

Other symptoms not described above

Call Technical Support for assistance.

Note: Certain sequences of events can cause unexpected results. To solve these issues, it is best to start fresh from factory defaults and use the manual as a step by step programming guide, rather than a random approach to programming. To reset the meter to factory defaults, see Reset Meter to Factory Defaults on page 57. In addition, for best results, we recommend using the free MeterView Pro software for all programming needs

Page 61

Helios PD2-6262 Dual Analog Input Rate/Totalizer

Instruction Manual

PRECISION DIGITAL CORPORATION

233 South Street • Hopkinton MA 01748 USA Tel (800) 343-1001 • Fax (508) 655-8990

www.predig.com

LIM2-6262_D

SFT065 Ver 4.010 & up

08/21

Contact Precision Digital

Technical Support

Call: (800) 610-5239 or (508) 655-7300 Fax: (508) 655-8990 Email: [email protected]

Sales Support

Call: (800) 343-1001 or (508) 655-7300 Fax: (508) 655-8990 Email: [email protected]

Place Orders

Email: [email protected]

For the latest version of this manual please visit

www.predig.com