Helios PD2-6400 User manual

Helios PD2-6400 High Voltage & High Current Meter

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 Meter

•(1) High Voltage and (1) High Current Input

•Multiplication for Apparent Power Calculation

•0-300 VAC or VDC Voltage Input

•0-5 AAC or ADC Current Input

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

•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

•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 Inputs

•On-Board RS-485 Serial Communications

•Modbus RTU Communication Protocol Standard

•External 4-Relay & Dual 4-20 mA Output Expansion Modules

•5 Digital Inputs & 4 Digital Outputs Standard

•Password Protection

•Light / Horn & Button Accessory

•Split Core AC Current Transformers Up to 1000 A AC Available

•Control Station Accessory for Remote Operation

•3-Year Warranty

MeterView Pro

USB Install

Helios PD2-6400 High Voltage & High Current Meter

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

programming buttons and the instructions in this

manual to do so.

Helios PD2-6400 High Voltage & High Current Meter 
Instruction Manual 
 
3 
Table of Contents 
Introduction..........................................................................................................6 
Ordering Information...........................................................................................6 
Specifications.......................................................................................................8 
General.............................................................................................................8 
Voltage and Current Inputs ............................................................................9 
Relays...............................................................................................................9 
USB Connection..............................................................................................9 
Isolated 4-20 mA Transmitter Output ..........................................................10 
RS-485 Serial Communications ...................................................................10 
Modbus®RTU Serial Communications........................................................10 
Digital Input (F4)............................................................................................10 
Digital Inputs & Outputs ...............................................................................10 
MeterView Pro Software................................................................................10 
Compliance Information....................................................................................11 
Safety..............................................................................................................11 
Safety Information .............................................................................................11 
Installation..........................................................................................................11 
Unpacking......................................................................................................11 
Wall Mounting Instructions ..........................................................................12 
Mounting Dimensions..................................................................................12 
Conduit Holes Location...............................................................................12 
Pipe Mounting Instructions ..........................................................................13 
Installation Overview.....................................................................................14 
MeterView Pro Software................................................................................14 
MeterView Pro Installation...........................................................................14 
Connections...................................................................................................15 
Connectors Labeling ...................................................................................15 
Power Connections.....................................................................................16 
Signal Connections .....................................................................................16 
Relay Connections......................................................................................17 
Switching Inductive Loads...........................................................................18 
RS-485 Connections...................................................................................18 
RS-485 Multi-Drop Connection ...................................................................18 
RS-485 Serial Converters ...........................................................................18 
Digital I/O Connections................................................................................19 
F4 Digital Input Connections.......................................................................20 
4-20 mA Output Connections......................................................................20 
Analog Output Transmitter Power Supply...................................................20 
Remote Operation of Meter.........................................................................20 
Interlock Relay Feature...............................................................................20 
Setup and Programming...................................................................................21 
Overview.........................................................................................................21 
LED Status Indicators...................................................................................21 
Programming Buttons...................................................................................22 
Display Functions & Messages....................................................................23 
Main Menu......................................................................................................24 
Setting Numeric Values ................................................................................25 
Setting Up the Meter (setup)........................................................................25 
Setting the Decimal Point (dEc pt).............................................................25 
Setting the Input Calibration (InCal)...........................................................26 
Setting the Display Parameter & Intensity (dsplay) ...................................28 
Display Intensity (d-Inty)...........................................................................28 
Setting the Input Units or Custom Tags (units).........................................29 
Setting the Relay Operation (relay)............................................................29 
Setting the Relay Assignment (asSign)......................................................30 
Setting the Relay Action..............................................................................30 
Programming Set and Reset Points............................................................30 
Setting Fail-Safe Operation.........................................................................30 
Programming Time Delay............................................................................30 

Helios PD2-6400 High Voltage & High Current Meter 
Instruction Manual 
 
4 
Relay and Alarm Operation Diagrams.........................................................31 
High Alarm Operation (Set >Reset)................................................................31 
Low Alarm Operation (Set < Reset)............................................................31 
High Alarm with Fail-Safe Operation (Set > Reset).....................................31 
Low Alarm with Fail-Safe Operation (Set < Reset) .....................................31 
Time Delay Operation .................................................................................32 
Relay Operation Details................................................................................33 
Overview .....................................................................................................33 
Relays Auto Initialization.............................................................................33 
Fail-Safe Operation.....................................................................................33 
Front Panel LEDs........................................................................................33 
Latching and Non-Latching Relay Operation ..............................................33 
Non-Latching Relay (Auto) .........................................................................34 
Non-Latching Relay with Manual Reset (A-nman).......................................34 
Latching Relay (LatcH)...............................................................................34 
Latching Relay with Clear (Lt-Clr)............................................................34 
Acknowledging Relays................................................................................35 
Pump Alternation Control Applications (Altern) ........................................35 
Setting Up the Interlock Relay (Force On) Feature.....................................35 
Scaling the 4-20 mA Analog Output (Aout).................................................36 
Reset Menu (reset).......................................................................................36 
Manual Control Menu (Contrl).....................................................................36 
Setting Up the Password (pass)...................................................................37 
Protecting or Locking the Meter ..................................................................37 
Making Changes to a Password Protected Meter.......................................37 
Disabling Password Protection....................................................................37 
Advanced Features Menu.............................................................................38 
Advanced Features Menu & Display Messages..........................................38 
Noise Filter (filter)...................................................................................39 
Noise Filter Bypass (bypass)......................................................................39 
Rounding Feature (round)..........................................................................39 
Modbus RTU Serial Communications (serial)..........................................40 
Select Menu (SElect).................................................................................40 
Multi-Point Linearization (Linear)...............................................................40 
Math Function (nmath)................................................................................41 
Math Constants (Const)..............................................................................41 
Low-Value Cutoff (CutofF) .........................................................................41 
Analog Output Programming (AoutPr) .......................................................41 
Programmable Function Keys User Menu (user).......................................42 
Internal Calibration (ICAL)...........................................................................43 
Meter Operation .................................................................................................44 
Button Operation...........................................................................................44 
Function Keys Operation..............................................................................44 
Digital Inputs Operation................................................................................44 
Maximum/Minimum Readings......................................................................44 
Troubleshooting.................................................................................................45 
Diagnostics Menu (diag) ..............................................................................45 
Testing the Display LEDs............................................................................45 
Determining Software Version.....................................................................45 
Reset Meter to Factory Defaults...................................................................45 
Factory Defaults & User Settings................................................................46 
Troubleshooting Tips....................................................................................48 
 
 

Helios PD2-6400 High Voltage & High Current Meter 
Instruction Manual 
 
5 
Table of Figures 
Figure 1. Meter Mounting Holes Location .......................................................12 
Figure 2. Meter Mounting Holes Dimensions..................................................12 
Figure 3. Meter Dimensions –Side View.........................................................12 
Figure 4. Meter Dimensions - Front View ........................................................12 
Figure 5. Conduit Holes Location –Bottom View...........................................12 
Figure 6. Vertical Pipe Mount Assembly..........................................................13 
Figure 7. Horizontal Pipe Mount Assembly.....................................................13 
Figure 8. PD2-6400-6H0 / 7H0 Connectors Label............................................15 
Figure 9. PD2-6400-6H7 / 7H7 Connectors Label............................................15 
Figure 10. Power Connections .........................................................................16 
Figure 11. AC Voltage Input Connection.........................................................16 
Figure 12. DC Voltage Input Connections.......................................................16 
Figure 13. AC Current Connections.................................................................16 
Figure 14. AC Current Transformer Connections...........................................16 
Figure 15. DC Current Connections.................................................................16 
Figure 16. AC Current and Voltage Connections............................................17 
Figure 17. AC Current Transformer and Voltage Connections .....................17 
Figure 18. DC Current and Voltage Connections............................................17 
Figure 19. Relay Connections...........................................................................17 
Figure 20. AC and DC Loads Protection..........................................................18 
Figure 21. Low Voltage DC Loads Protection.................................................18 
Figure 22. RS-485 Connection..........................................................................18 
Figure 23. Five-Wire RS-485 Connections.......................................................19 
Figure 24. Three-Wire RS-485 Multi-Drop Connections.................................19 
Figure 25. Connections for RS-485 Connector to Serial Converter..............19 
Figure 26. Three-Wire RS-485 Connection......................................................19 
Figure 27. Digital Input and Output Connections...........................................19 
Figure 28. F4 Digital Input Connections..........................................................20 
Figure 29. 4-20 mA Output Connections .........................................................20 
Figure 30. Analog Output Supply Powering Other Devices...........................20 
Figure 31. Meter to PDA2364-MRUE Control Station Connection.................20 
Figure 32. Interlock Connections.....................................................................20 
 

Helios PD2-6400 High Voltage & High Current Meter

Instruction Manual

Introduction

The Helios PD2-6400 is a multi-purpose, easy to use,

large-display high voltage and current input meter

ideal for measuring direct voltage and current or the

output from voltage shunts and current transformers.

It features large 1.8 inch superluminous LED digits,

which can be read from up to 100 feet away. It is

housed in a water-resistant, field mountable NEMA

4X/IP65 rated enclosure for convenient indoor and

outdoor installation.

The 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 has one 0-300 VAC or VDC voltage input

and one 0-5 AAC or ADC current input. It may be

used with a single voltage or current input, or to

measure both simultaneously. A math channel P

calculates apparent power as the product of the

voltage and current inputs.

The Helios PD2-6400 can display voltage, current,

and apparent power. The dual line display can display

any two parameters simultaneously, or can alternate

between any parameters as well as their

programmable units and tags.

A fully loaded Helios PD2-6400 meter 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

PD2-6400-6H0

5 Digital Inputs,

4 Digital Outputs,

RS-485

Communications

No options

PD2-6400-6H7

4 relays

4-20 mA output

12-24 VDC Models

Model

Standard

Features

Options

Installed

PD2-6400-7H0

5 Digital Inputs,

4 Digital Outputs,

RS-485

Communications

No options

PD2-6400-7H7

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 20

for details.

Helios PD2-6400 High Voltage & High Current Meter

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)

MOD-

PD2LH3CB1-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.

2. An external 24 VDC power supply (PDA1024-01) is required to

power the Light / Horn.

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 13 for details.

Model

Description

PDA6260

2" Pipe Mounting Kit for PD2

PDA6405 Split Core AC Current

Transformers

Model

Description

PDA6405-100

100 AAC Current Transformer with

0-5 AAC Output

PDA6405-200

200 AAC Current Transformer with

0-5 AAC Output

PDA6405-400

400 AAC Current Transformer with

0-5 AAC Output

PDA6405-600

600 AAC Current Transformer with

0-5 AAC Output

PDA6405-1000

1000 AAC Current Transformer with

0-5 AAC Output

Helios PD2-6400 High Voltage & High Current Meter

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 is six.

Display

Update Rate

5/second (200 ms)

LED Status

Indicators

See LED Status Indicators on page 21 for

details.

Overrange

Display flashes 999999

Underrange

Display flashes -99999

Display

Assignment

Display Line 1:

Channels A (Ch-A, current), V (Ch-V,

voltage), or P (Ch-P, apparent power);

toggle between (Ch-A & Ch-V, Ch-A & Ch-

P, Ch-V & Ch-P, and Ch-A, Ch-V, & Ch-P);

set points; max and/or min values for Ch-A,

Ch-V, or Ch-P; CH-A and units; Ch-V and

units; Ch-P and units, Modbus input, and

more.

Display Line 2:

Same as Display Line 1; plus units, tag or

turned off.

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 each

displayed input type are stored until reset

by the user or until power to the meter is

cycled.

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.

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.

Non-Volatile

Memory

All programmed settings are stored in non-

volatile memory for a minimum of ten years

if power is lost.

Power

Options

85-265VAC50/60Hz;90-265VDC,20Wmax;

12-24 VDC, 12-24 VAC, 15 W max.

Powered over USB for configuration only.

Fuse

Required external fuse: UL Recognized, 5

A max, slow blow; up to 6 meters may

share one 5 A fuse

Isolation

500 V AC/DC potential allowed between

voltage and current input channels.

Channels isolated by 3 MΩimpedance

4 kV input/output-to-power line

500 V input-to-output

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 12 for

additional details.

Pipe Mounting:

Optional pipe mounting kit (PDA6260)

allows for pipe mounting. Sold separately.

See Pipe Mounting Instructions on page 13

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.

Helios PD2-6400 High Voltage & High Current Meter

Instruction Manual

Voltage and Current Inputs

High Voltage

Input

Onehigh voltageinput (ChannelV)0-300VDC

or VAC; Switch Selectable, Modbus PV

(Slave)

High Current

Input

One high current input (Channel A)

0-5 AAC or ADC; Switch Selectable,

Modbus PV (Slave)

Channels

Channel A, Channel V, Channel P (Math

Channel for Apparent Power)

AC/DC

Selection

Switch selectable for AC or DC inputs.

Channels A and V share AC/DC selection.

Apparent

Power Math

Apparent power P calculated as

P = (A * V + C) * F

Programmable

Constants

Constant C (Adder): -99.999 to 999.999,

default: 0.000

Constant F (Factor): 0.001 to 999.999,

default: 1.000

Accuracy

ADC: 0.03% Full Scale ±1 count,

AAC: 0.1% Full Scale ±1 count,

VDC: 0.05% Full Scale ±1 count,

VAC: 0.15% Full Scale ±1 count

Temperature

Drift

0.005% of calibrated span/C max from

-40 to 65C ambient

Multi-Point

Linearization

2 to 32 points for Channel A and V

Low-Value

Cutoff

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

Point below at which the display always

shows zero. Independent for Channel A

and V.

Decimal Point

Up to five decimal places or none:

d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd

Calibration

Range

Input

Channel

Input Range

Minimum Span

Input 1 & Input 2

± 0-5 ADC

0-5 AAC

± 0.005 ADC

0.010 AAC

± 0-300 VDC

0-300 VAC

± 0.1 VDC

0.3 VAC

An error message will appear if the input 1

and input 2 signals are too close together.

Input

Impedance

Voltage Input: Greater than 3 M

Current Input: 0.010 

Input

Overload

Voltage input protected up to 500 VDC

Current input protected up to 10 A by a

10A/300V fast acting non-resettable fuse

Fuse is NOT resettable after a fault; unit

must be factory reconditioned.

F4 Digital

Input

Contacts

3.3 VDC on contact. Connect normally

open contacts across F4 to COM.

F4 Digital

Input

Logic Levels

Logic High: 3 to 5 VDC

Logic Low: 0 to 1.25 VDC

Relays

Rating

4 SPDT(Form C) internal and rated 3 A

@ 30 VDC and 125/250 VAC resistive load;

1/14 HP (≈50 W) @ 125/250 VAC for

inductive loads

Noise

Suppression

Noise suppression is recommended for

each relay contact switching inductive

loads; see Switching Inductive Loads on

page 17 for details.

Relay

Assignment

Each relay independently assigned to

Ch-A, Ch-V, CH-P, or Modbus

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 setpoint 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: Frontpanelbutton, F4terminalor digital

input maybe assignedtoacknowledge relays

programmed formanualreset.

Time Delay

0 to 999.9 seconds, on & off relay time

delays. Programmable and independent for

each relay

Fail-Safe

Operation

Programmable and independentfor each relay.

Note: Relay coil is energized in non-alarm

condition. In case of power failure, relay will

go to alarm state.

Break

Condition

Operation

Relay condition when current input break

detected. Programmable independently for

each relay as On, Off, or Ignore (maintain

last condition).

Auto

Initialization

When power is applied to the meter, relays

will reflectthe 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.

Helios PD2-6400 High Voltage & High Current Meter

Instruction Manual

Isolated 4-20 mA Transmitter

Output

Source

Process channel A, V, or P, max or min for

channel A, V, or highest or lowest max or

min of A and V, 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

TerminalsI+&R:24VDC10%@ 40mA.

May be used to power the 4-20 mA output

or other devices.

All modelsrated @ 40mAmax.

External Loop

Power Supply

35 VDC maximum

Output Loop

Resistance

Power supply

Minimum

Maximum

24 VDC

10 

700 

35 VDC

(external)

100 

1200 

Additional

4-20 mA

Outputs

The PD659-1MA-2MA can split the optional

4-20 mA output into two isolated 4-20 mA

outputs

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 max/min

values. See Function Keys & Digital I/O

Available Settings on page 42 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 42 for a complete list of

capabilities.

Channels

4 digital inputs & 4 digital outputs

Digital Input

Logic High

3 to 5 VDC

Digital Input

Logic Low

0 to 1.25 VDC

Digital Output

Logic High

3.1 to 3.3 VDC

Digital Output

Logic Low

0 to 0.4 VDC

Source

Current

10 mA maximum output current

Sink Current

1.5 mA minimum input current

+5 V Terminal

To be used as pull-up for digital inputs only.

Connect normally open push buttons

across +5 V & DI 1-4.

•DO NOT use +5 V terminal to power external

devices.

MeterView Pro Software

Availability

Download directly from meter or from

www.predig.com/download_software

System

Requirements

Microsoft®Windows®XP/Vista/7/8/10

Communications

USB 2.0 (for programming only)

(Standard USB A to USB Type B)

RS-485 to USB converter

(programming, monitoring, and data

logging)

Configuration

Configure meters one at a time

Power

USB port provides power to the meter.

DO NOT apply AC or DC power to the

meter while the USB port is in use.

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