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PD8-6300
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Precision Digital PD8-6300 User guide

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Page 1
ProtEX-MAX PD8-6300 Pulse Input Rate/Totalizer, Counter and Tachometer
Instruction Manual
PRECISION DIGITAL CORPORATION
www.predig.com
• Fully-Approved Explosion-Proof Flow Rate/Totalizers
• Pulse, Open Collector, NPN, PNP, TTL, Switch Contact, Sine Wave (Coil), Square Wave Inputs
• Dual-Line 6-Digit Display, 0.6" (15 mm) & 0.46" (12 mm)
• SafeTouch Through-Glass Button Programming
• Display Mountable at 0°, 90°, 180°, & 270°
• Isolated 5, 10 or 24 VDC Flowmeter Power Supply
• Gate Function for Rate Display of Slow Pulse Rates
• 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
• Display Rate & Total at the Same Time
• Rate in Units per Second, Minute, Hour, or Day
• Total, Grand Total or Non-Resettable Grand Total
• Front Panel or Remote Total Reset
• Password Protection for Total Reset
• Total Stored in Non-Volatile Memory
• Assign Any Relay or 4-20 mA Output for Rate or Total
• K-Factor, Internal Scaling, or External Calibration
• 4-20 mA Output Option Converts the Pulse Input to an Isolated 4-20 mA Output
• Operating Temperature Range: -40 to 60°C (-40 to 140°F)
• FM Approved as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof
• CSA Certified as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof
• ATEX and IECEx Certified as Flame-Proof
• Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC
• Programmable Display, Function Keys & Digital Inputs
• Flanges for Wall or Pipe Mounting
• Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum Enclosure
• On-Board RS-485 Serial Communications
• Modbus RTU Communication Protocol Standard
• Password Protection
• Four 3/4" NPT Threaded Conduit Openings (Two Plugs Installed)
• 3-Year Warranty
MeterView Pro
USB Install
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Disclaimer
The information contained in this document is subject to change without notice. Precision Digital makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. See Warranty Information and Terms & Conditions on
www.predig.com for complete details.
• Read complete instructions prior to installation and operation of the meter.
• Risk of electric shock or personal injury.
• This product is not recommended for life support
applications or applications where malfunctioning could result in personal injury or property loss. Anyone using this product for such applications does so at his/her own risk. Precision Digital Corporation shall not be held liable for damages resulting from such improper use.
• Failure to follow installation guidelines could result in death or serious injury. Make sure only qualified personnel perform the installation.
• Never remove the meter cover in explosive environments when the circuit is live.
• Cover must be fully engaged to meet explosion-proof/dust-ignition-proof/flame-proof requirements.
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.
© 2022 Precision Digital Corporation. All rights reserved.
FREE MeterView Pro Programming Software
The meter can be powered from the USB connection. When using the USB connection, DO NOT apply AC or DC power to the meter.
The easiest and quickest way to program your ProtEX-MAX 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 ProtEX-MAX 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.
• The meter should only be connected to a computer while it is located in a safe area.
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Table of Contents
Introduction ......................................................................................................... 7
Ordering Information .......................................................................................... 7
Key Features ....................................................................................................... 9
Specifications ................................................................................................... 15
General ................................................................................................ .......... 15
Pulse Inputs .................................................................................................. 16
Rate/Totalizer ................................................................................................ 16
Relays ............................................................................................................ 17
USB Connection ........................................................................................... 17
Isolated 4-20 mA Transmitter Output ......................................................... 17
RS-485 Serial Communications .................................................................. 18
Modbus® RTU Serial Communications ....................................................... 18
Digital Input (F4) ........................................................................................... 18
Digital Inputs & Outputs .............................................................................. 18
MeterView Pro Software .............................................................................. 18
Compliance Information................................................................................... 19
Electromagnetic Compatibility .................................................................... 19
Product Ratings and Approvals .................................................................. 19
EU Declaration of Conformity .......................................................................... 20
Safety Information ............................................................................................ 20
Installation .......................................................................................................... 20
Unpacking ..................................................................................................... 20
Mounting ....................................................................................................... 21
Installation Overview ................................................................................... 23
MeterView Pro Software .............................................................................. 23
MeterView Pro Installation ......................................................................... 23
Flowmeter Supply Voltage Selection (P+, P-) ............................................ 24
Connections ................................................................................................. 24
Required & Factory Wired Connection ....................................................... 24
PROVU Electronics Module Layout ............................................................. 25
USB Connection ........................................................................................ 25
Power Connections .................................................................................... 26
Signal Connections .................................................................................... 27
Relay Connections ..................................................................................... 28
Interlock Relay Feature .............................................................................. 28
Switching Inductive Loads.......................................................................... 28
RS-485 Connections .................................................................................. 29
RS-485 Multi-Drop Connection .................................................................. 29
Digital I/O Connections .............................................................................. 29
F4 Digital Input Connections ...................................................................... 29
4-20 mA Output Connections ..................................................................... 30
Analog Output Power Supply ..................................................................... 30
Remote Programming ................................................................................ 30
Setup and Programming .................................................................................. 31
LED Status Indicators .................................................................................. 31
Programming Buttons ................................................................................. 32
SafeTouch Buttons ...................................................................................... 32
Display Functions & Messages ................................................................... 33
Main Menu ..................................................................................................... 35
Setting Numeric Values ................................................................ ............... 35
Setting Up the Rate/Totalizer Meter (setup) ............................................... 36
Setting the Input Signal (Input) ................................................................. 36
Setting the Totalizer Features (total) ....................................................... 36
Setting the Display Units or Custom Tags (units) .................................... 37
Setting the Decimal Point (dEc pt) ........................................................... 37
Programming the Rate/Totalizer (prog) ..................................................... 37
Setting the Display Parameter & Intensity (dsplay) .................................. 40
Display Intensity (d-Inty).......................................................................... 40
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Setting the Relay Operation (relay) ........................................................... 41
Relay Assignment (Assign) ....................................................................... 41
Setting the Relay Action ............................................................................. 41
Programming Set and Reset Points ........................................................... 42
Setting Fail-Safe Operation ........................................................................ 42
Programming Time Delay .......................................................................... 42
Relay and Alarm Operation Diagrams ........................................................ 43
High Alarm Operation (Set > Reset) .............................................................. 43
Low Alarm Operation (Set < Reset) ........................................................... 43
High Alarm with Fail-Safe Operation (Set > Reset) .................................... 43
Low Alarm with Fail-Safe Operation (Set < Reset)..................................... 43
Time Delay Operation .................................................................................. 44
Total Relay Sampling Operation ................................................................ 44
Relay Operation Details ............................................................................... 45
Overview .................................................................................................... 45
Relays Auto Initialization ............................................................................ 45
Fail-Safe Operation .................................................................................... 45
Front Panel LEDs ....................................................................................... 45
Latching and Non-Latching Relay Operation ............................................. 45
Non-Latching Relay (Auto) ........................................................................ 46
Non-Latching Relay with Manual Reset (A-nman) ...................................... 46
Latching Relay (LatcH) .............................................................................. 46
Latching Relay with Clear (Lt-Clr) ........................................................... 46
Acknowledging Relays ............................................................................... 47
Setting Up the Interlock Relay (Force On) Feature .................................... 47
Scaling the 4-20 mA Analog Output (Aout) ................................................ 48
Reset Menu (reset) ...................................................................................... 48
Manual Control Menu (Contrl) ................................................................... 48
Setting Up the Password (pass) .................................................................. 49
Protecting or Locking the Meter ................................................................. 49
Total Reset Password & Non-Resettable Total .......................................... 49
Making Changes to a Password Protected Meter ...................................... 49
Disabling Password Protection .................................................................. 49
Advanced Features Menu ............................................................................ 50
Advanced Features Menu & Display Messages ......................................... 50
Rounding Feature (round) ......................................................................... 51
Modbus RTU Serial Communications (serial) ......................................... 52
Select Menu (SElEct) ................................................................................ 52
Input Signal Conditioning (Functn) ............................................................ 52
Multi-Point Linearization (Linear) ............................................................. 52
Low-Flow Cutoff (CutofF) .......................................................................... 52
Analog Output Programming (AoutPr) ...................................................... 53
Programmable Function Keys User Menu (user) ...................................... 54
Meter Operation ................................................................................................ 55
Button Operation .......................................................................................... 55
SafeTouch Buttons ...................................................................................... 55
Function Keys Operation ............................................................................. 56
Digital Inputs Operation ............................................................................... 56
Maximum/Minimum Readings ..................................................................... 57
Totalizer Overflow Displays Total to 9 Digits ............................................. 57
Troubleshooting ............................................................................................... 58
Diagnostics Menu (diag) ............................................................................. 58
Testing the Display LEDs ........................................................................... 58
Determining Software Version ................................................................... 58
Reset Meter to Factory Defaults.................................................................. 58
Factory Defaults & User Settings ............................................................... 58
Troubleshooting Tips ................................................................................... 60
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Table of Figures
Figure 1. Enclosure Dimensions – Front View ............................................... 21
Figure 2. Enclosure Dimensions – Side Cross Section View ....................... 21
Figure 3: Flowmeter Supply Voltage Selection .............................................. 24
Figure 4. Integrated PROVU Required Connections ....................................... 24
Figure 5. PROVU Electronics Module Layout .................................................. 25
Figure 6. USB Connection ............................................................................... 25
Figure 7: Power Connections .......................................................................... 26
Figure 8: Flowmeter Powered by Internal Power Supply .............................. 27
Figure 9: Flowmeter Powered by External Supply ........................................ 27
Figure 10: Self-Powered Magnetic Pickup Coil Flowmeter ........................... 27
Figure 11: NPN open Collector Input .............................................................. 27
Figure 12: PNP Sensor Powered by Internal Supply ..................................... 27
Figure 13: Switch Input Connections ............................................................. 27
Figure 14: Relay Connections ......................................................................... 28
Figure 15: Interlock Connections .................................................................... 28
Figure 16: AC and DC Loads Protection ........................................................ 28
Figure 17: Low Voltage DC Loads Protection ................................................ 28
Figure 18. RS-485 Diagnostic LEDs ................................................................ 29
Figure 19. Three-Wire RS-485 Connection ..................................................... 29
Figure 20. Digital Input and Output Connections .......................................... 29
Figure 21. F4 Digital Input Connections ......................................................... 29
Figure 22: 4-20 mA Output Connections ........................................................ 30
Figure 23. Analog Output Supply Powering Other Devices .......................... 30
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Introduction

The ProtEX-MAX PD8-6300 is an explosion-proof, pulse input flow rate/totalizer ideal for flow rate, total and control applications. The meter features a dual-line display, with a main display 0.60" (15 mm) high, and a second display of 0.46" (12 mm) high superluminous LED digits, which can be read in any lighting condition, including direct sunlight. The meter is housed in a die-cast aluminum, field-mountable, NEMA 4X/IP68 rated enclosure for convenient indoor and outdoor installation.
The meter accepts a wide variety of pulse signals that can be displayed as flow rate, total and grand total. In fact, the ability to display flow rate and total at the same time, or other combinations of rate, total and grand total, is one of the most useful features of the dual-line display.
The ProtEX-MAX is available in two configurations: display only and fully loaded. Both versions include a 24 VDC power supply to power the flowmeter. A fully loaded ProtEX-MAX PD8-6300-6H7 meter comes with four SPDT relays, a 4-20 mA output, five digital inputs and four digital outputs, and RS-485 serial communications.
The four relays can be used for alarm indication or process control purposes. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O features make the ProtEX-MAX an excellent addition to any system.
One of the most useful applications for the PD8-6300 is to convert the pulse input from the flowmeter into an isolated 4-20 mA output all the while displaying flow rate and total on a big bright display as the following graphic illustrates:

Ordering Information

85-265 VAC Models
Model
Standard Features
Options Installed
PD8-6300-6H0
5 Digital Inputs, 4 Digital Outputs, RS-485 Communications
No options
PD8-6300-6H7
4 relays 4-20 mA output
12-24 VDC Models
Model
Standard Features
Options Installed
PD8-6300-7H0
5 Digital Inputs, 4 Digital Outputs, RS-485 Communications
No options
PD8-6300-7H7
4 relays 4-20 mA output
Accessories
Model
Description
PDA0001
3/4" M-NPT to F-M20 Reducer
PDA0002
3/4" M-NPT to 1/2" F-NPT Reducer
PDAPLUG75
3/4" Metal Conduit/Stopping Plug
PDA-SSTAG
Custom Stainless Steel Tag (see website for convenient ordering form)
PDA6848
2" U-Bolt Kit Zinc Plated Steel
PDA6848-SS
2" U-Bolt Kit Stainless Steel
PDA7485-I
RS-232 to RS-485 isolated converter
PDA8485-I
USB to RS-485 isolated converter
SafeTouch Buttons
To make it possible to program and operate the ProtEX-MAX in a hazardous area, the programming buttons that are located behind the glass window can be operated without removing the cover by using the SafeTouch through-glass buttons. The operator puts their finger on the glass over the button and the button is actuated.
To learn more about SafeTouch buttons, see this video:
predig.com/videos/Safetouch_Buttons
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Helpful Videos
There are several videos that will help you get a better understating of the features and functionality of the ProtEX-MAX products. Since the ProtEX-MAX meters have the same general features and functionality of the ProVu meters, appropriate videos for the ProVu meter are also included.
ProtEX-MAX Products Overview
Learn about the complete line of ProtEX-MAX products.
predig.com/videos/ProtEXMAX_Overview
MeterView Pro Programming Software
Learn how easy it is to program the ProVu (ProtEX-MAX) process meter using MeterView Pro software.
predig.com/videos/MVPro_SW
MeterView Pro Software Demonstration
Learn how easy it is to program Precision Digital's ProVu (ProtEX-MAX) process meter for a level application using MeterView Pro PC-based programming software.
predig.com/videos/MVPro_Demo
Connect to PC for Programming
Learn how to connect a ProVu (ProtEX-MAX) process meter to your PC and install free MeterView Pro programming software.
predig.com/videos/PC_Connect
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Key Features

Connections for PD8-6300-6H7 & PD8-6300-7H7
The Only Explosion-Proof Totalizer, Counter & Tachometer You Will Ever Need
The ProtEX-MAX PD8-6300 explosion-proof flow rate/totalizers are specifically designed for displaying flow rate and total from flowmeters with pulse outputs. The meter boasts specifications, features and functionality that make it the only hazardous area flow rate/totalizer you will ever need.
The PD8-6300 has all the same features as our PD6300 1/8 DIN flow rate/totalizer, but it is not just a meter stuffed in an explosion-proof enclosure like many of our competitors offer. The PD8-6300 is approved as a complete product by FM and CSA and also carries IECEx approvals. Besides being suitable for hazardous areas, the number one feature that makes the PD8-6300 such a useful device is its built-in 5, 10 or 24 VDC power supply to drive the flowmeter as illustrated by the above diagram. This feature not only saves the cost of an external power supply, but also greatly simplifies wiring. In addition, there is a second 25 mA power supply provided with the 4-20 mA output option.
The first thing you notice about the PD8-6300 is its modern looking, rugged, die-cast aluminum housing with convenient mounting flanges. Housed inside this enclosure is a dual-line, 6-digit display with high-intensity LEDs that can be read in direct sunlight. The main display can be programmed to display flow rate, total, or grand total, and the second display can be programmed to display flow rate, total, grand total, engineering units, custom legends, or turned off.
PROVU flow rate/totalizers can be programmed for a wide variety of totalizer applications. They can display total, grand total, or non-resettable grand total with a time base of seconds, minutes, hours or days. The user can program a totalizer conversion factor, a non-resettable grand total, password protection, and several total reset methods. Finally, all these features and capabilities can easily be programmed without removing the cover using SafeTouch buttons in a hazardous area or with free MeterView Pro PC-based software in a safe area.
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Easy Programming Methods
The ProtEX-MAX can be programmed in a hazardous area with the through-glass SafeTouch buttons without removing the cover, in a safe area with the front panel push buttons with the cover removed, or in a safe area with free, PC-based MeterView Pro software. MeterView Pro is resident on the ProtEX-MAX and is accessed by a provided USB cable, so it is by far the easiest way to program the ProtEX-MAX.
The meter comes from the factory pre-calibrated for all pulse inputs, so the user need only set the mV / PNP / NPN switch in the appropriate position based on the input and also set the desired excitation voltage level. Once programming is completed, the meter can be locked with a password.
The ProtEX-MAX comes preloaded with free MeterView Pro programming software that connects and installs directly to your PC with a standard USB cable, also provided free with each instrument. This eliminates the need to insert CDs, install drivers, or download software from the internet. When you connect your ProtEX-MAX to your PC, MeterView Pro is downloaded to your PC, the software automatically
selects the model you are programming, and you’re
ready to start programming immediately. Further simplifying the programming process, the ProtEX-MAX can be powered from the USB port, so no need to apply external power while programming your meter. In addition to programming, the software will also allow you to monitor, and datalog a ProtEX-MAX using your PC. You can also generate and save programming files for later use.
Advanced Display Features
Display Flow Rate, Total or Grand Total
The main display can be programmed to display flow rate, total, or grand total, and the second display can be programmed to display flow rate, total, grand total, engineering units, custom legends, or can be turned off. Both displays could also display relay set points, or max and min values. The following photographs show typical ways these flow rate/totalizers can be programmed.
Flow Rate Indicator Flow Totalizer
Rate & Total Total & Grand Total
Easy to Use
The user-friendly dual-line display makes the PROVU easy to set up & program. No jumpers to set for input selection. All setup & programming are done via the front panel.
Input Setup Display Setup
Totalizer Overflow Displays Total to 9 Digits
These flow rate/totalizers can display up to nine digits of total flow with the total overflow feature. In the diagram below, the flow totalizer is displaying 532,831,470 by
toggling between a display of “oF 532” and “831470”. Notice the (T with arrow ▲ symbol) is lit up indicating
the display is in overflow mode.
Super-Bright Display
The ProtEX-MAX comes standard with a super-bright display, with LEDs that are visible even in direct sunlight. The display also has up to eight levels of adjustable intensity for optimum visibility in any lighting condition.
Rounding for Even Steadier Display
The rounding feature is used to give the user a steadier display with fluctuating signals. It causes the display to round to the nearest value according to the rounding value selected (1, 2, 5, 10, 20, 50, or 100). For example, with a rounding value of 10, and an input of 12346, the display would indicate 12350.
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Rate/Totalizer Features
ProtEX-MAX flow rate/totalizers can be programmed for a wide variety of rate and totalizer applications. They can display rate, total, grand total, or a non-resettable grand total with a time base of seconds, minutes, hours or days. The user can program a totalizer conversion factor, a non-resettable grand total, password protection, and several total reset methods. The dual-line display can be programmed to display rate and total at the same time, or a variety of other rate, total and grand total combinations.
Display Rate & Total at Same Time
One of the most useful features of the ProtEX-MAX flow rate/totalizers is their ability to display both flow rate and total at the same time. Whereas a single-line display would have to toggle between the rate and the total, the ProtEX-MAX’s dual-line display can display them both at the same time.
Totalizer Password Protection
The total and grand total can be password protected so they can be reset only by authorized personnel.
Total Password Grand Total Password
Non-Resettable Grand Total
The user can set up the grand total to be non-resettable by entering a specific password. Once this is done, the grand total can never be reset.
Totalizer Conversion Factor
The user can enter a totalizer conversion factor that allows the meter to display total in different units than the rate. For instance, a customer could measure flow rate in gallons per minute and total in hundredths of acre-feet.
Rate in Units Per Sec, Min, Hr, or Day
The user may select a rate time base in units per second, minute, hour, or day. The time base is the amount of time over which the rate parameter will totalize. For example, if the rate was ten (and stayed constant for one minute) and the time base was in minutes, then the total would increase by ten every one minute.
Convert Pulse Input to Isolated 4-20 mA Output
One of the most useful applications for the PD8-6300 is to convert the pulse input from the flowmeter into an isolated 4-20 mA output all the while displaying flow rate and total on a big bright display as the following graphic illustrates:
Programming
The meter may either be scaled (SCALE) without applying an input, calibrated (Cal) by applying an input, or the K-Factor menu may be used to match the rate/totalizer with the flowmeter’s k-factor (pulse/unit of measure).
Most flowmeter manufacturers provide the k-factor information with the flowmeter. Enter the K-Factor (Factor) menu and select the decimal point with highest resolution possible and program the k-factor value (i.e. pulses/gal). The meter will automatically calculate the flow rate using the k-factor and the time base selected.
Gate Function for Slow Pulse Rates
The gate function is used for displaying slow pulse rates. Using the programmable gate, the meter is able to display pulse rates as slow as 1 pulse every 999.9 seconds (0.001 Hz). The gate function can also be used to obtain a steady display reading with a fluctuating input signal.
Total & Rate Alarms
The ProtEX-MAX can be equipped with four alarms (relays) that can be set up to activate on the rate or total. In the case of the rate, the relays can be programmed to trip on a high or low rate. In the case of the total, the relays can be programmed to trip when the total reaches a user-defined set point. A variety of reset modes are available and the user can also program time delays and fail-safe operation.
4-20 mA Output for Rate or Total
The 4-20 mA output can be assigned to the rate or total.
Total Stored in Non-Volatile Memory
Total and Grand Total values, and all programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
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Total Reset Capabilities
The user may reset the total via a SafeTouch button, the F4 terminal at the back of the meter, an external contact closure on the digital inputs, automatically via user selectable preset value and time delay, or through serial communications.
Total Reset via SafeTouch Button
The three through-glass SafeTouch button function keys can be programmed to reset the total and grand total. This makes it possible for the user to reset either the total or the grand total without opening the enclosure cover and without the need for external devices. Of course, if the total or grand total is password protected, they will not reset when the function key is pressed.
Total Reset via F4 Terminal
The PD8-6300 includes a digital input (referred to as the F4 terminal) located on the back of the electronics module as standard that can be used to reset the total or grand total, among other things. This is the preferred method for externally resetting the total or grand total because it does not interfere with the operation of the SafeTouch buttons for programming as described below in the Total Reset via Digital Input section.
Total Reset via Digital Input
In addition to the F4 digital input described above, the PD8-6300 also includes four digital inputs that can be used to reset the total or grand total. However, if a digital input is used to reset the total, or for some other purpose, the corresponding through-glass SafeTouch button will function as a programming key.
Total Reset via Preset Value
The total and grand total can be programmed for automatic reset based on a preset value determined by the user. In the automatic reset mode, a programmable time delay is available to reset the total or grand total after the assigned preset is reached.
Total Reset via Serial Communications
The total and grand total can be reset via serial communications such as a Modbus command or MeterView Pro.
Sampling Function (Total Triggered Timed Relay)
The sampling function allows the operator to set a set
point for a “sampling” relay. When the program total
reaches that set point, it will close that relay’s
contacts for a preset period of time (0.1 to 5999.9 seconds). An example of its use may be for wastewater sampling. When the wastewater total reaches a preset total interval (i.e. every 10,000 gallons), the relay contacts would close for a preset time, and by some means (light, horn, etc.) alert someone to take a sample, or provide the trigger to automatically take a sample of the wastewater. The utility of this function can, of course, be expanded beyond sampling and be used whenever a timed relay output closure is required when the rate or a total interval reaches a certain set point.
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Physical Features
The ProtEX-MAX is designed for ease-of-use in safe and hazardous applications. The ProtEX-MAX is housed in a rugged NEMA 4X explosion-proof enclosure, can operate over a wide temperature range, includes removable screw terminal connectors, has worldwide approvals for use in hazardous areas, and features through-glass buttons for easy meter operation without the need to remove the cover. All of these features are backed by a 3-year warranty.
Super-Bright LED Display
The ProtEX-MAX features a dual-line 6-digit display with super-bright LEDs, our brightest ever. These allow the display to be read in any lighting condition, even in direct sunlight.
SafeTouch Through-Glass Buttons
The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area. These buttons can be disabled for security by selecting the DISABLE setting on the NO-CONTACT BUTTONS switch located on the back of the electronics module, inside the enclosure.
Rugged, Heavy-Duty Enclosure
The ProtEX-MAX is housed in a rugged NEMA 4X, 7, & 9, IP68 die-cast aluminum enclosure, designed to withstand harsh environments in safe and hazardous areas over a wide temperature range.
Wide Viewing Angle
Customers can’t always look at the display from
straight on, so the window and display module have been optimized to provide a wide viewing angle of approximately ±40°; nearly twice that of the competition.
Built-In Mounting Flanges
The ProtEX-MAX is equipped with four slotted flanges for wall mounting or NPS 1½" to 2½" or DN 40 to 65 mm pipe mounting.
Flexible Mounting & Wiring
The ProtEX-MAX features four ¾" NPT threaded conduit openings so that wiring can be routed to the most convenient conduit connection(s). Two ¾" NPT metal conduit plugs with 12 mm hex key fitting come installed.
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Rotatable Display
The ProtEX-MAX rotatable display, along with four available conduit connections, provide for numerous installation options. The display can be rotated in 90° increments. Rotate it 90° for horizontal mounting.
Vertical Mounting Horizontal Mounting
Perfect & Secure Fit Every Time
The internal cast rails ensure the ProtEX-MAX assembles together perfectly, quickly and securely; and everything lines up for optimal viewing every time. There are no standoffs to worry about breaking or getting out of alignment. Two spring-loaded, self-retaining, thumbscrews make the assembly a snap, while pressing the display as close to the glass as possible to improve wide angle viewing.
Stainless Steel Tags
PDA-SSTAG is a laser etched stainless steel tag accessory for any of your Precision Digital meters. The tag features custom text for equipment identification, instruction, or whatever else is needed in your facility. Each tag comes with a stainless steel wire and lead seal for easy mounting wherever you need it.
Removable Screw Terminals
Industrial applications require screw terminal connections for easy field wiring, and the ProtEX-MAX goes one step further in convenience by also making them removable.
Note: The above photograph is representative of the back of the PD8-6300 in every regard except for the signal input connector. See Signal Connections on page 27 for actual input signal connections.
USB Port MeterView Pro
Hazardous Area Approvals
The ProtEX-MAX's approvals allow it to be used in hazardous areas around the world. These include: FM Approved as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof, CSA Certified as Explosion-Proof / Dust-Ignition-Proof, and ATEX and IECEx Certified as Flame-Proof.
Wide Operating Temperature Range
The ProtEX-MAX can operate from -40 to 60°C (-40 to 140°F) meaning it can be installed in a wide variety of indoor and outdoor industrial applications. And over this range, the ProtEX-MAX will drift no more than 0.005% of calibrated span/°C max from 0 to 65°C ambient and 0.01% of calibrated span/°C max from -40 to 0°C ambient.
USB cable conveniently
plugs into side of
ProtEX-MAX meter
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Specifications

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

General

Display
Display Line 1: 0.60" (15 mm) high, red LEDs
Display Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with lead zero blanking
Display Intensity
Eight user selectable intensity levels. Default intensity is six.
Display Update Rate
Rate: 10/sec to 1/100 sec (it is a function of Low Gate setting)
Total: 10/second (fixed)
LED Status Indicators
See LED Status Indicators on page 31 for details.
Overrange
Display flashes 999999
Display Assignment
Display Line 1: Rate, total, grand total, alternate (rate/total, rate/grand total, rate/units, total/units, and grand total/units), set points, max/min, Modbus input and more.
Display Line 2: Same as Display Line 1; plus units, tag or turned off.
Programming Methods
Four SafeTouch through-glass buttons when cover is installed. Mechanical buttons can be used with the cover removed. Free PC-based USB MeterView Pro programming software.
Recalibration
All ranges are calibrated at the factory to read frequency in Hz. No recalibration required.
Max/Min Display
Max/min readings reached by the process 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 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
Total and Grand Total values, and all programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Power Options
85-265 VAC 50/60 Hz; 90-265 VDC, 20 W max; 12-24 VDC, 12-24 VAC, 15 W max. Powered over USB for configuration only.
Fuse
Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse
Isolation
4 kV input/output-to-power line 500 V input-to-output or output-to-P+ supply
Overvoltage Category
Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.
Environmental
T6 Class operating temperature range Ta = -40 to 60°C T5 Class operating temperature range Ta = -40 to 65°C
Storage temperature range:
-40 to 85°C (-40 to 185°F) Relative humidity:
0 to 90% non-condensing
Max Power Dissipation
Maximum power dissipation limited to 15.1 W
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: Removable screw terminal blocks accept 16 to 30 AWG wire
Enclosure
Explosion-proof die-cast aluminum with glass window, corrosion resistant epoxy coating, color: blue
NEMA 4X, 7, & 9, IP68 Default conduit connections: Four ¾" NPT
threaded conduit openings and two ¾" NPT metal conduit plugs with 12 mm hex key fitting installed. Additional conduit opening configurations may be available; verify quantity and sizes on specific device labeling during installation.
Mounting
Wall Mounting: Four (4) mounting holes provided for mounting meter to wall. See Wall Mounting Instructions on page 21 for additional details.
Pipe Mounting: Optional pipe mounting kit (PDA6848) allows for pipe mounting. Sold separately. See Pipe Mounting Instructions on page 22 for additional details.
Tightening Torque
Screw terminal connectors: 5 lb-in (0.56 Nm)
Overall Dimensions
6.42" x 7.97" x 8.47" (W x H x D) (163 mm x 202 mm x 215 mm)
Weight
16.0 lbs (7.26 kg)
Warranty
3 years parts & labor. See Warranty Information and Terms & Conditions on
www.predig.com for complete details.
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Pulse Inputs

Inputs
Field selectable: Pulse or square wave 0-5 V, 0-12 V, or 0-24 V @ 30 kHz; TTL; open collector 4.7 k pull-up to 5 V @ 30 kHz; NPN or PNP transistor, switch contact 4.7 k pull-up to 5 V @ 40 Hz; Modbus PV (Slave)
Isolated Flowmeter Power Supply
Terminals P+ & P-: 24 VDC 10%. All models flowmeter supply rated
@ 25 mA max. All models selectable for 24, 10, or 5 VDC
supply (Internal J4 jumper).
Low Voltage Mag Pickup (Isolated)
Sensitivity: 40 mVp-p to 8Vp-p
Minimum Input Frequency
0.001 Hz Minimum frequency is dependent on high gate setting.
Maximum Input Frequency
30,000 Hz (10,000 for low voltage mag pickup)
Input Impedance
Pulse input: Greater than 300 k @ 1 kHz. Open collector/switch input: 4.7 k pull-up to 5 V.
Input Threshold
Low
High
1.6 V
3.3 V
Accuracy
±0.03% of calibrated span ±1 count
Temperature Drift
Rate display is not affected by changes in temperature.
Multi-Point Linearization
2 to 32 points
Low-Flow Cutoff
0.1 to 999,999 (0 disables cutoff function). Point below at which display always shows zero.
Decimal Point
Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd
Calibration
May be calibrated using K-factor, internal calibration, or by applying an external calibration signal.
K-Factor
Field programmable K-factor converts input pulses to rate in engineering units. May be programmed from 0.00001 to 999,999 pulses/unit.
Calibration Range
Input 1 signal may be set anywhere in the range of the meter; input 2 signal may be set anywhere above or below input 1 setting.
Minimum input span between any two inputs is 0.10 Hz.
An error message will appear if the input 1 and input 2 signals are too close together.
Filter
Programmable contact de-bounce filter: 40 to 999 Hz maximum input frequency allowed with low speed filter.
Time Base
Second, minute, hour, or day
Gate
Low gate: 0.1-99.9 seconds High gate: 2.0-999.9 seconds

Rate/Totalizer

Display Assignment
Display lines 1 & 2 may be assigned to rate, total, grand total, alternate rate/total, alternate rate/grand total, set points, alternate rate/units, alternate total/units, alternate grand total/units, display Hi, display Lo, display Hi/Lo, display Modbus, display units (line 2) and display off (line 2).
Rate Display Indication
-99999 to 999999, lead zero blanking. “R” LED illuminates while displaying rate or frequency.
Total Display & Total Overflow
0 to 999,999; automatic lead zero blanking.
“T” LED is illuminated while displaying total
or grand total. Up to 999,999,999 with total-overflow
feature. “oF” is displayed to the left of total overflow and ▲ LED is illuminated.
Alternating Display
Either display may be programmed to alternate between rate and total or rate and grand total every 10 seconds.
Total Decimal Point
Up to five decimal places or none: d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd Total decimal point is independent of rate decimal point.
Totalizer
Calculates total based on rate and field programmable multiplier to display total in engineering units. Time base must be selected according to the time units in which the rate is displayed.
Totalizer Rollover
Totalizer rolls over when display exceeds 999,999,999. Relay status reflects display.
Total Overflow Override
Program total reset for automatic with 0.1 second delay and set point 1 for 999,999
Totalizer Presets
Four, user selectable under setup menu. Any set point can be assigned to total and may be programmed anywhere in the range of the meter for total alarm indication.
Programmable Delay On Release
0.1 and 999.9 seconds; applied to the first relay assigned to total or grand total. If the meter is programmed to reset total to zero automatically when the preset is reached, then a delay will occur before the total is reset.
Total Reset
Via front panel button, external contact closure on digital inputs, automatically via user selectable preset value and time delay, or through serial communications.
Total Reset Password
Total and grand total passwords may be entered to prevent resetting the total or grand total from the front panel.
Non­Resettable Total
The grand total can be programmed as a non-resettable total by entering the password “050873”.
Non-Volatile Memory
Total and Grand Total values, and all programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
• Once the Grand Total has been programmed as
“non-resettable” the feature CANNOT be disabled.
3.3 V
1.6 V 0 V
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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 28 for details.
Relay Assignment
Relays may be assigned to rate, total, grand total, or Modbus input.
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, automatically via user selectable preset value and time delay, or through serial communications.
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
Micro-B receptacle
Cable
USB A Male to Micro-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.

Isolated 4-20 mA Transmitter Output

Output Source
Rate/process, total, grand total, max, min, set points 1-4, or manual control mode
Scaling Range
1.000 to 23.000 mA for any display range.
Calibration
Factory calibrated:
0.0 to 1000.0 = 4-20 mA output
Analog Out Programming
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break
Accuracy
±0.1% FS ±0.004 mA
Temperature Drift
0.4 µA/C max from 0 to 65C ambient,
0.8 µA/C max from -40 to 0C ambient
Isolated Transmitter Power Supply
Terminals I+ & R: 24 VDC 10%. Used to power the 4-20 mA output.
All models rated @ 25 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
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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 (METER LINK), 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 ProtEX-MAX Modbus Register Tables located at www.predig.com for details.

Digital Input (F4)

Function
Reset total, remote operation of front-panel buttons, acknowledge/reset relays, 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. 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) (USB A Male to Micro-B Cable)
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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Compliance Information

Electromagnetic Compatibility

Emissions
EN 55022 Class A ITE emissions requirements
Radiated Emissions
Class A
AC Mains Conducted Emissions
Class A
Immunity
EN 61326-1 Measurement, control, and laboratory equipment EN 61000-6-2 EMC heavy industrial generic immunity standard
RFI - Amplitude Modulated
80 -1000 MHz 10 V/m 80% AM (1 kHz)
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
Electrical Fast Transients
±2kV AC mains, ±1kV other
Electrostatic Discharge
±4kV contact, ±8kV air
RFI ­Conducted
10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge
±2kV Common, ±1kV Differential
Surge
1KV (CM)
Power­Frequency Magnetic Field
30 A/m 70%V for 0.5 period
Voltage Dips
40%V for 5 & 50 periods 70%V for 25 periods
Voltage Interruptions
<5%V for 250 periods
Note: Testing was conducted on meters with cable shields grounded at the point of entry representing installations designed to optimize EMC performance.

Product Ratings and Approvals

FM
Enclosure: Type 4X; IP66 Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1, T5/T6 Class I, Zone 1, AEx d, IIC Gb T5/T6 Zone 21, AEx tb IIIC T90°C; Ta = -40°C to +65°C T6 Ta = -40°C to +60°C; T5 Ta = -40°C to +65°C Certificate Number: 3047283
CSA
Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1 Class I Zone 1 Ex d IIC Zone 21 Ex tb IIIC T90°C
-40°C < Tamb. < +60° C; Temperature Code T6
-40°C < Tamb. < +65° C; Temperature Code T5 Enclosure Type 4X & IP68 Certificate Number: 2531731
ATEX
II 2 G D
Ex d IIC T* Gb Ex tb IIIC T90°C Db IP68 Ta = -40°C to +*°C *T6 = -40°C to +60°C *T5 = -40°C to +65°C Certificate number: Sira 12ATEX1182
IECEx
Ex d IIC T* Gb Ex tb IIIC T90°C Db IP68 Ta = -40°C to +*°C *T6 = -40°C to +60°C *T5 = -40°C to +65°C Certificate Number: IECEx SIR 12.0073
Special Conditions for Safe Use:
Use suitably certified and dimensioned cable entry device and/or plug. The equipment shall be installed such that the supply cable is protected from mechanical damage. The cable shall not be subjected to tension or torque. If the cable is to be terminated within an explosive atmosphere, then appropriate protection of the free end of the cable shall be provided. Cable must be suitable for 90°C.
Year of Construction
This information is contained within the serial number with the first four digits representing the year and month in the YYMM format.
For European Community: The ProtEX-MAX must be installed in accordance with the ATEX directive 94/9/EC, and the product certificate Sira 12ATEX1182.
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EU Declaration of
Conformity
EU Declaration of Conformity is available in the Documentation CD provided with the product under the EU DoC menu.

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

Install in accordance with applicable local and national regulations (e.g. NEC).
For Installation in USA The ProtEX-MAX must be installed in accordance with the National Electrical Code (NEC) NFPA
70.
For Installation in Canada
The ProtEX-MAX must be installed in accordance with the Canadian Electrical Code CSA 22.1. All power supplies below 36 V and input circuits must be derived from a CSA Approved Class 2 source.
For European Community
The ProtEX-MAX must be installed in accordance with the ATEX directive 94/9/EC and the product certificate Sira 12ATEX1182.
• Disconnect from supply before opening enclosure.
• Keep cover tight while circuits are live.
• Conduit seals must be installed within 18"
(450mm) of the enclosure or within 2" (50mm) for Zone installations.
Wiring connectors are accessed by opening the enclosure. To access electrical connectors, remove the 2 captive screws and then remove the electronics module. Connectors are on the rear of the electronics module.

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.
Pre-Installed Conduit Plugs
The ProtEX-MAX is supplied with two pre-installed conduit plugs for installations that do not require the use of all four conduit entries. The conduit/stopping plugs include an internal hexagonal socket recess for removal. The conduit plugs and their factory installation are included in all hazardous area approvals of this product.
• In hazardous areas, conduit and conduit/stopping plugs require the application of non-setting (solvent free) thread sealant. It is critical that all relevant hazardous area guidelines be followed for the installation or replacement of conduit or plugs.
Cover Jam Screw
The cover jam screw should be properly installed once the meter has been wired and tested in a safe environment. The cover jam screw is intended to prevent the removal of the meter cover in a hazardous environment without the use of tools. Using a M2 hex wrench, turn the screw clockwise until the screw contacts the meter. Turn the screw an additional 1/4 to 1/2 turn to secure the cover.
• Excess torque may damage the threads, screw head, and wrench.
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Mounting

The ProtEX-MAX has four slotted mounting flanges that may be used for pipe mounting or wall mounting. Refer to Figure 1 and Figure 2 below.
• Do not attempt to loosen or remove flange bolts while the meter is in service.
Mounting Dimensions
All units: inches (mm)
Figure 1. Enclosure Dimensions – Front View
Figure 2. Enclosure Dimensions –
Side Cross Section View
Wall Mounting Instructions
The meter can be mounted to any wall or flat surface using the four provided mounting holes located in the cast-in flanges. In addition, the internal electronic assembly can be rotated to allow the enclosure to be mounted in any position. To mount the meter to a wall, follow these instructions:
• Prepare a section of wall approximately 7" x 8.5" (178 mm x 216 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 1.
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.
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Pipe Mounting Instructions
The meter can also be mounted to a pipe using an optional U-Bolt kit. This kit includes two U-bolts, the necessary hardware, and is available in zinc plated steel (PDA6848) and 316 stainless steel (PDA6848-SS).
To mount the meter using a U-Bolt kit, follow these instructions:
• Orient the groove on the back of the instrument with the pipe and secure it to the pipe with the two U-bolts and hardware provided.
Vertical Pipe Mounting
Horizontal Pipe Mounting
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Installation Overview

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

MeterView Pro Software

The easiest and quickest way to program your ProtEX-MAX 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 ProtEX-MAX 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.
• The meter should only be connected to a computer while it is located in a safe area.
2. Once the driver is installed, an AutoPlay dialog should appear for the drive
“MAINSTAL.” Click “Open folder to view
files.”
If the computer does not display an AutoPlay
dialog for the drive “MAINSTAL,” you should
open My Computer and double-click on the drive labeled “MAINSTAL.”
3. Double-click on the file named “MAStart.” The program will open a few windows and install two programs on your computer. Simply follow the on-screen instructions until you see one of the dialogs below. If you
receive a “User Account Control” warning,
click “Yes.”
4. If there is an update available, click the
“Update” button to install the new version.
Otherwise, click “Configure” to begin
programming your meter.
Note: If you decide to update your MeterView Pro software, once the installation has completed, you will be asked if you want to update the setup files located on the meter itself. This way, you will always have the most current version on the meter for future installs.
• DO NOT unplug the meter while the new installation files are being written to it. The meter will display uwrite during the process and you will receive an on-screen notification once the process is complete.
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Flowmeter Supply Voltage Selection (P+, P-)

All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory configured to provide 24 VDC power for the transmitter or sensor.
If the flowmeter requires 5 or 10 VDC excitation, the internal jumper J4 must be configured accordingly.
To access the voltage selection jumper:
1. Remove all the connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J4 jumper, located behind the input signal connector, for the desired excitation voltage as shown.
Figure 3: Flowmeter Supply Voltage Selection

Connections

All connections are made to removable screw terminal connectors located at the rear of the meter.
• 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.
• Observe all safety regulations. Electrical wiring should be performed in accordance with all agency requirements and applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.
• Static electricity can damage sensitive components.
• Observe safe handling precautions for static-sensitive components.
• Use proper grounding procedures/codes.
• If the instrument is installed in a high voltage
environment and a fault or installation error occurs, high voltage may be present on any lead or terminal.
• Follow all fusing and wiring precautions requirements for the instrument integrated to the PD8 Series model number being connected.
To access the connectors, remove the enclosure cover and unscrew the two captive screws that fasten the electronics module. Signal connections are made to de-pluggable connectors on the back of the electronics module.
Some connectors may be provided already connected. These connections are required for proper operation of the ProtEX-MAX and should not be removed unless instructed to by this manual.
Wires marked as being used for testing purposes should be removed.
Grounding connections are made to the two ground screws provided on the base – one internal and one external.
After all connections have been completed and verified, apply power to the unit.

Required & Factory Wired Connection

The ProtEX-MAX comes with a pre-wired connection. This connection is detailed below and must be maintained in order for the instrument to function properly.
Figure 4. Integrated PROVU Required Connections
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PROVU Electronics Module Layout for PD8-6300-6H7 and PD8-6300-7H7*

* For models PD8-6300-6H0 and PD8-6300-7H0 the upper set of connectors (RELAYs & MA OUT) are not present
Figure 5. PROVU Electronics Module Layout

USB Connection

Figure 6. USB Connection
• DO NOT disconnect the RJ45 M-LINK connector cable. Otherwise the instrument will not function properly.
• The meter should only be connected to a computer while it is located in a safe area.
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Power Connections

Power connections are made to a two-terminal connector labeled POWER. The meter will operate regardless of DC polarity connection. The + and ­symbols are only a suggested wiring convention. There are separate models for low voltage and high voltage power. See Ordering Information on page 7 for details.
Figure 7: Power Connections
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
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Signal Connections

Signal connections are made to a six-terminal connector labeled SIGNAL. The COM (common) terminal is the return for the input signals.
The following figures show examples of signal connections.
Setup and programming is performed through the programming buttons or MeterView Pro software.
Figure 8: Flowmeter Powered by Internal Power
Supply
Figure 9: Flowmeter Powered by External Supply
Figure 10: Self-Powered Magnetic Pickup Coil
Flowmeter
Figure 11: NPN open Collector Input
Figure 12: PNP Sensor Powered by Internal
Supply
Figure 13: Switch Input Connections
Flowmeter
(Pulse Output)
P- COMP+ S+ S-
3412 5
F4
6
mV PNP NPN
SWITCH
INPUT SIGNAL
External
Power Supply
Flowmeter
(Pulse Output)
+
-
P- COMP+ S+ S-
3412 5
F4
6
INPUT SIGNAL
mV PNP NPN
SWITCH
Flowmeter
(Magnetic
Pickup Coil)
P- COMP+ S+ S-
3412 5
F4
6
INPUT SIGNAL
mV PNP NPN
SWITCH
NPN
SENSOR
4.7 k-ohm
Internal pull-up
+5 V
P- COMP+ S+ S-
3412 5
F4
6
INPUT SIGNAL
mV PNP NPN
SWITCH
PNP
SENSOR
4.7 k-ohm
Internal pull-down
P- COMP+ S+ S-
3412 5
F4
6
INPUT SIGNAL
mV PNP NPN
SWITCH
SWITCH
INPUT
4.7 k-ohm
Internal pull-up
+5 V
P- COMP+ S+ S-
3412 5
F4
6
INPUT SIGNAL
mV PNP NPN
SWITCH
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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 14: Relay Connections

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 47.
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 15: Interlock Connections

Switching Inductive Loads

The use of snubbers to suppress electrical noise is strongly recommended when switching inductive
loads to prevent disrupting the microprocessor’s
operation. The snubbers also prolong the life of the relay contacts. Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation:
Figure 16: AC and DC Loads Protection
Choose R and C as follows: R: 0.5 to 1 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 (Snubbers) Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
C NONO NC NC C
RELAY4 RELAY3
4 36 5 2 1
C NONO NC NC C
RELAY2 RELAY1
4 36 5 2 1
C R
C R
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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 52 for more information.
There are three diagnostic LEDs: Transmit Data (TX), Receive Data (RX) and METER LINK to show when the meter is transmitting and receiving data from other devices.
Figure 18. RS-485 Diagnostic LEDs

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.
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 19. Three-Wire RS-485 Connection

Digital I/O Connections

The ProtEX-MAX has a 10-position terminal block for connecting digital inputs and outputs.
Figure 20. Digital Input and Output Connections
The onboard digital inputs (1-4) are configured at the factory to function identically to the front panel pushbuttons (Menu, F1, F2, & F3) in order to work with the SafeTouch buttons. Changing the programming of the digital inputs will affect the function of the SafeTouch buttons. If you wish to change the behavior of the digital inputs, re-assign F1-F3 to the desired function, then change the corresponding digital input to match.
• DO NOT disconnect the RJ45 M-LINK connector cable. Otherwise the instrument will not function properly.

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital input should be connected with a normally open contact across F4 and COM, or with an active low signal applied to F4. It can be used to reset the total, for remote operation of front-panel buttons, to acknowledge/reset relays, or to reset max/min values. See Function Keys & Digital I/O Available Settings on page 54 for a complete list of capabilities.
Figure 21. F4 Digital Input Connections
__ __
DI DI DO DO
1 2 3 4 5 6
+5 I1 I2 I3 I4 O1
7 8
O2 O3
9 10
O4 G
DI 1-4 DO 1-4
5 VDC GND
P- COMP+ S+ S-
3412 5
F4
6
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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 22: 4-20 mA Output Connections

Analog Output 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 23. Analog Output Supply Powering Other
Devices

Remote Programming

The meter can be operated via the programming buttons or a remote control station with required approvals to be located in a hazardous area using the digital inputs and outputs.
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
+-
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Setup and Programming

The meter may either be scaled (SCALE) without applying an input, calibrated (Cal) by applying an input, or you may use the K-Factor menu to match the rate/totalizer with a flowmeter’s k-factor (pulse/unit of measure).
The meter comes factory calibrated to NIST standards, so for initial setup, it is recommended to use the K-Factor method or (SCALE) function.
Overview
There is one switch, located to the right of the input connector, which must be configured according to the input level and type. The jumper J4 located inside the meter, behind the connector, is used to select the excitation voltage (24 V*, 10 V or 5 V) which is supplied to the P+ and P- wiring terminals. Setup and programming is done using MeterView Pro or through the programming buttons.
After power and input signal connections have been completed and verified, apply power to the meter. *Default setting

LED Status Indicators

LED
State
Indication
1-4
Steady
Alarm condition based on set and reset points, independent of relay status in certain configurations. (Available on all meter configurations, including those without relays installed)
1-4
Flashing
Relay interlock switch open
1-4 & M
Flashing
Relay in manual control mode
R
Steady
Rate
T
Steady
Total
G & T
Steady
Grand Total
▲
Steady
Total overflow. (“oF” is displayed to the left of total overflow and ▲
LED is illuminated)
M
Flashing
Analog output in manual control mode
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Programming Buttons

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
• 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.

SafeTouch Buttons

The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area.
These buttons can be disabled for security by selecting DISABLE on the switch labeled NO-CONTACT BUTTONS located on the connector board.
To actuate a button, press one finger to the glass directly over the marked button area. Then retract finger more than three inches from the glass before pressing the next button. When the cover is removed, the four mechanical buttons located next to the sensors are used. The sensors are disabled when a mechanical button is pressed and will automatically be re-enabled after 60 seconds of inactivity.
The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against false triggering, however, it is recommended that the SafeTouch Buttons be disabled (slide switch to DISABLE) if there is an infrared interference source in line-of-sight to the display.
The SafeTouch Buttons are configured by default to duplicate the function of the front panel mechanical pushbuttons associated with the integrated meter. The symbols by each SafeTouch button correspond to a mechanical button as shown in the above table.

SafeTouch Button Tips:

• To the extent possible, install the display facing away from sunlight, windows, reflective objects and any sources of infrared interference.
• Keep the glass window clean.
• Tighten the cover securely.
• Use a password to prevent tampering.
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Display Functions & Messages

The meter displays various functions and messages during setup, programming, and operation. The following table shows the main menu functions and messages in the order they appear in the menu.
Display Functions & Messages
Display
Parameter
Action/Setting Description
setup
Setup
Enter Setup menu
Input
Input
Enter Input selection menu
Total
Total
Enable or disable totalizer features
unitS
Units
Select the display units/tags
rate
Rate
Select the display units for rate
total
Total
Select the display units for total
Gtotal
Grand Total
Select the display units for grand total
Dec pt
Decimal point
Set decimal point for rate, total, grand total
prog
Program
Enter the Program menu
InCAL
Input Calibration
Enter the Input Calibration menu
factor
K-factor Scaling
Programs unit to convert input pulse to rate in engineering units
sCalE
Scale
Enter the Scale menu
Cal
Calibrate
Enter the Calibrate menu
Inp 1
Input 1
Calibrate input 1 signal or program input 1 value
Dis 1
Display 1
Program display 1 value
Inp 2
Input 2
Calibrate input 2 signal or program input 2 value (up to 32 points)
Dis 2
Display 2
Program display 2 value (up to 32 points)
Error
Error
Error, calibration not successful, check signal or programmed value
T tb
Total time base
Program total time base
T CF
Total conversion factor
Program total conversion factor
T rst
Total reset
Program total reset mode: auto or manual
GT tb
Grand total time base
Program grand total time base
GT CF
Grand total conversion factor
Program grand total conversion factor
Display Functions & Messages
Display
Parameter
Action/Setting Description
GT rst
Grand total reset
Program grand total reset mode: auto or manual
Auto
Automatic
Press Enter to set automatic total reset
T dly
Time delay
Program time delay for total auto reset
nmAn
Manual
Press Enter to reset total manually
dsplay
Display
Enter the Display menu
Line 1
Line 1
Press Enter to assign the Upper display parameter (default: PV or rate)
Line 2
Line 2
Press Enter to assign the lower display parameter (default: total)
d-Inty
Display intensity
Set display intensity level from 1 to 8
RELaY
Relay
Enter the Relay menu
Assign
Assignment
Assign relays to rate, total, grand total, or Modbus
Asign1
Assign 1
Relay 1 assignment
rATE
Rate
Assign relay to rate
totAL
Total
Assign relay to total
G total
Grand total
Assign relay to grand total
RLY 1
Relay 1
Relay 1 setup
Act 1
Action 1
Set relay 1 action
Auto
Automatic
Set relay for automatic reset
A-nman
Auto­manual
Set relay for automatic & manual reset any time
LatcH
Latching
Set relay for latching operation (relays assigned to rate)
Lt-CLr
Latching­cleared
Set relay for latching operation with manual reset only after alarm condition has cleared (relays assigned to rate)
Altern
Alternate
Set relay for alternation control (relays assigned to rate)
Sanmpl
Sampling
Set relay for sampling operation
OFF
Off
Disable relay and front panel status LED (Select Off to enable Interlock feature)
Set 1
Set 1
Program set point 1
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Display Functions & Messages
Display
Parameter
Action/Setting Description
RSt 1
Reset 1
Program reset point 1
RLY 2
Relay 2
Relays 2-4 setup
FaiLSF
Fail-safe
Enter Fail-safe menu
FLS 1
Fail-safe 1
Set relay 1 fail-safe operation
on
On
Enable fail-safe operation
off
Fail-safe off
Disable fail-safe operation
DeLAY
Delay
Enter relay Time Delay menu
DLY 1
Delay 1
Enter relay 1 time delay setup
On 1
On
Set relay 1 On time delay
OFF 1
Off
Set relay 1 Off time delay
Aout
Analog output
Enter the Analog output scaling menu
Dis 1
Display 1
Program display 1 value
Out 1
Output 1
Program output 1 value (e.g. 4.000 mA)
Dis 2
Display 2
Program display 2 value
Out 2
Output 2
Program output 2 value (e.g. 20.000 mA)
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
Rst t
Reset total
Press Enter to reset total
Rst Gt
Reset grand total
Press Enter to reset grand total
Contrl
Control
Enter Control menu
Auto
Automatic
Press Enter to set meter for automatic operation
nmAn
Manual
Press Enter to manually control relays or analog output operation
pass
Password
Enter the Password menu
Pass 1*
Password 1*
Set or enter Password 1* (*1, 2, or 3)
Total
Total password
Set or enter password for manual reset
Gtotal
Grand total password
Set or enter password for manual reset
Display Functions & Messages
Display
Parameter
Action/Setting Description
nonrst
Non­resettable
Non-resettable grand total
set after entering “050873”
for Gtotal password
unloc
Unlocked
Program password to lock meter
locd
Locked
Enter password to unlock meter
999999
Flashing display
Overrange condition
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PD8-6300 Pulse Input Rate/Totalizer, Counter & Tachometer
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Main Menu

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

Setting Numeric Values

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

The Setup menu is used to select:
1. Enable or disable totalizer features
2. Units for Rate, Total, and Grand Total
3. Decimal point position
4. Input Calibration
5. Display parameter and intensity
6. Relay operation
7. 4-20 mA analog output scaling
Press the Enter button to access any menu or press Up arrow button to scroll through choices. Press the Menu button to exit at any time.

Setting the Input Signal (Input)

There is a switch, located to the right of the input connector, which must be configured according to the input level and type. For location of this switch, see Signal Connections on page 27.
Jumper J4 located inside the meter, behind the input signal connector, is used to select the excitation voltage (24 V [Default setting], 10 V or 5 V) which is supplied to the P+ and P- wiring terminals. For location of this switch, see Flowmeter Supply Voltage Selection (P+, P-) on page 24.
Enter the Input menu to enable or disable the totalizer features.

Setting the Totalizer Features (total)

Enable or disable the totalizer features by selecting
“Yes” or “no” after the input type has been set up. If
the totalizer features are disabled, most totalizer features and functions are hidden from the menus.
Note: The totalizer continues working in the background.
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Setting the Display Units or Custom Tags (units)

Use this menu to enter the unit or custom tag that will be displayed if:
1. Alternating rate, total, or grand total and
units is selected in the units menu, or
2. d unit is selected as the line 2 parameter.
See the Setting the Display Parameter & Intensity (dsplay) flow chart on page 40 to access the display menu to show the unit or tag on line 2. The engineering units or custom legends can be set using the following 7-segment character set:
Display
Character
Display
Character
0
0
k K 1
1
l L 2
2
nm m 3
3
n n 4
4
O O 5
5
o o 6
6
p
P
7
7
q
q
8
8
r r 9
9
s S A
A
t
t
b
b
u
u
C
C
v V c
c
uw w d
d
x X e
E
y Y f
F
z Z g
G
- - 9
g
/ / H
H
[
]
h
h
]
[
I
I
= = I
i
!
Degree(<)
j
J
Space
Notes:
1. Degree symbol represented by (<) if programming with MeterView Pro.
2. The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted one position.
3. Press and hold up arrow to auto-scroll the characters in the display.

Setting the Decimal Point (dEc pt)

The decimal point may be set with up to five decimal places or with no decimal point at all. The rate, total, and grand total decimal points are independent.
The decimal point selection should be made prior to scaling, calibrating or programming the meter. Pressing the right arrow moves the decimal point one place to the right until no decimal point is displayed, then it moves to the leftmost position.
Pressing the up arrow moves the decimal point to the left.

Programming the Rate/Totalizer (prog)

The meter may either be scaled (SCALE) without applying an input, calibrated (Cal) by applying an input, or you may use the K-Factor menu to match the rate/totalizer with a flowmeter’s k-factor (pulse/unit of measure). The meter comes factory calibrated to NIST standards, so for initial setup, it is recommended to use the (SCALE) function.
The Program menu contains the following menus:
1. K-Factor calibration
2. Scale without a signal source
3. Calibrate with a calibrated signal source
4. Total time base & conversion factor
5. Grand total time base & conversion factor
6. Total reset mode for total & grand total
The pulse inputs may be calibrated or scaled to any display value within the range of the meter.
Note: The Scale, Calibrate, and K-Factor functions are exclusive of each other. The meter uses the last function programmed. Only one of these methods can be employed at a time. The Scale and Calibrate functions can use up to 32 points (default is 2). The number of points should be set in the Advanced menu prior to scaling and calibration of the meter. See Multi-Point Linearization (Linear) menu on page 52 for details.
Additional parameters, not needed for most applications, are programmed in the Advanced Features menu. See Advanced Features Menu on page 50.
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K-Factor Calibration (Factor)
The meter may be calibrated using the K-Factor function. Most flowmeter manufacturers provide this information with the device. Enter the K-Factor (Factor) menu and select the decimal point with highest resolution possible and program the k-factor value (i.e. pulses/gal). The meter will automatically calculate the flow rate using the k-factor and the time base selected.
Multi-Point Calibration & Scaling
The meter is set up at the factory for 2-point linear calibration. The number of points for multi-point calibration/scaling is set up in the Advanced Features menu. Up to 32 linearization points may be selected.
See Multi-Point Linearization (Linear) menu on page 52 for details.
Scaling the Meter (SCALE)
The pulse inputs can be scaled to display the process variable in engineering units.
A signal source is not needed to scale the meter; simply program the inputs and corresponding display values.
Note: The display values (DiS 1 and DiS 2) need to be in units of measure per second. For example, if the rate at 1000 Hz is 13.20 gal/min, this must be converted to gal/sec. In this scenario, the numbers input into the SCALE menu would be as follows:
InP 1: 0.0 DiS 1: 0.00 InP 2: 1000.0 DiS 2: 0.22
Set the time base to minutes (see Time Base, Total Conversion Factor & Total Reset) and the meter will
display 13.20 gal/min at 1000 Hz.
For instructions on how to program numeric values see Setting Numeric Values on page 35.
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, allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected backwards*.
2. Minimum input span requirements not maintained.
3. Input 1 signal inadvertently applied to calibrate input 2*.
*Not relevant when scaling the meter.
For instructions on how to program numeric values see Setting Numeric Values on page 35.
Minimum Input Span
The minimum allowed input span is 0.10 Hz, which is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter.
Time Base, Total Conversion Factor & Total Reset
The time base, total conversion factor, and total reset menus are located in the Program menu.
The total and grand total have their own independent settings. This means that one can be displaying the value in gallons while the other displays in million gallons, liters, m3, etc.
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Time Base
The time base is the amount of time over which the rate parameter should accrue. For example, if the rate was ten and the time base was in minutes, then the total would increase by ten every one minute.
Total & Grand Total Conversion Factor
The total & grand total conversion factor is the amount by which the rate is multiplied before it is added to the total or grand total. For example, if the rate was 1000 gallons per minute and the total conversion factor was 0.001, the total would increase by 1 every minute. This is useful, for instance, if you want to show rate in gallons and total in thousands of gallons.
Total & Grand Total Reset
The totals can be programmed for automatic or manual 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.
Non-Resettable Totalizer
The total and grand total can be password-protected to prevent unauthorized resets. The grand total can be programmed as a non-resettable total, see Total Reset Password & Non-Resettable Total on page 49 for details.
Calibrating the Meter with External Source (Cal)
To scale the meter without a signal source, refer to
K-Factor Calibration on page 37 or Scaling the Meter on page 38.
The meter can be calibrated to display the process variable in engineering units by applying the appropriate input signal and following the calibration procedure.
The use of a calibrated signal source is strongly recommended to calibrate the meter.
Notes:
1. The display values (DiS 1 and DiS 2) need to be
in units of measure per second.
2. Inputs for the above example are:
Input 1: 0.0 Hz; Display 1: 0.0 gallons/second Input 2: 1000.0 Hz; Display 2: 6000.0 gallons/second
3. After calibration in gallons per second, you can
change the time base to display the rate in gallons per minute, per hour, or per day.
There is no need to warm up the meter before
performing the calibration procedure.
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Setting the Display Parameter & Intensity (dsplay)

Display line 1 (line 1) can be programmed to display:
1. Rate value
2. Total or grand total
3. Relay set points
4. Max & min values
5. Modbus input
6. Display rate and units
7. Rate and total
8. Rate and grand total
9. Total and units
10. Grand total and units
Display line 2 (Line 2) can be programmed to display:
1. Rate value
2. Total or grand total
3. Relay set points
4. Max & min values
5. Engineering units or custom legends
6. Modbus input
7. Off (no display)
8. Display rate and units
9. Rate and total
10. Rate and grand total
11. Total and units
12. Grand total and units
After setting up the input and the display, press the Menu button to exit programming and skip the rest of the setup menu. Press the Menu button again and the Up arrow to reach the Program menu and complete the scaling or calibration of the meter.
Display Flow Rate, Total or Grand Total
Line 1 can be programmed to display flow rate, total, or grand total, and line 2 can be programmed to display flow rate, total, grand total, engineering units, custom legends, or be turned off. Both lines can also display relay set points, or max and min values.
Flow Rate Indicator Flow Totalizer
Rate & Total Total & Grand Total
Display Toggling Between Reading & Units
The PD8-6300 can be programmed so that line 1 and line 2 toggle between the reading and their engineering units. For instance, line 1 displays flow rate, line 2 displays total, and the display toggles to show their units.

Display Intensity (d-Inty)

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

This menu is used to set up the 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. Rate for low and high alarm b. Total c. Grand total d. Modbus input
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. Alternation control (automatic reset only) f. Sampling (the relay is activated for a
user-specified time) g. Off (relay state controlled by Interlock
feature)
3. Set and reset points
4. Fail-safe operation a. On (enabled) b. Off (disabled)
5. Time delay a. On delay (0-999.9 seconds) b. Off delay (0-999.9 seconds)

Relay Assignment (Assign)

The relays can be assigned to any of the following parameters:
1. Rate for low or high alarm indication
2. Total for alarm indication
3. Grand total for alarm indication
4. Modbus input

Setting the Relay Action

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

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

Setting Fail-Safe Operation

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

Programming Time Delay

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

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

High Alarm Operation (Set > Reset)

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

Low Alarm Operation (Set < Reset)

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

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

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

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

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

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

Total Relay Sampling Operation

When the total reaches the preset, the relay trips and the sample time starts. After the sample time has elapsed, the relay resets. The cycle repeats every time the preset value is added to the total.
Preset = 100
100
Relay
LED
Total
200
300
Sample
Time
Sample
Time
Sample
Time
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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 flow alarms and basic batch control. There are four basic ways the relays can be used:
1. High and Low Alarms with Latching or Non-Latching Relays
2. Simple On/Off Control with 100% Adjustable Deadband
3. Sampling (Based on Time)
4. Alternation Control for up to 4 Relays

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:
Alarm #
HI or LO
Alarm
Set
Point
Reset
Point
Power-
Up
Reading
Relay &
LED
1
HI
1000
500
499
Off 2 LO
700
900
499
On 3 LO
250
400
499
Off 4 HI
450
200
499
On

Fail-Safe Operation

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

Front Panel LEDs

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

Latching and Non-Latching Relay Operation

The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation.
Relay terminology for following tables
Terminology
Relay Condition
On
Alarm (Tripped)
Off
Normal (Reset)
Ack
Acknowledged
The On and Off terminology does not refer to the status of the relay’s coil, which depends on the fail­safe mode selected.
• In latching relay mode, if Fail-Safe is off, latched relays will reset (unlatch) when power is cycled.
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Non-Latching Relay (Auto)

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

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

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

Latching Relay (LatcH)

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

Latching Relay 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.
Automatic reset only
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
Off
Off
Automatic + manual reset at any time
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Normal
Off
Off
Next Alarm
On
On
Ack
On
Off
Normal
Off
Off
Manual reset any time
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack
Off
Off
Manual reset only after alarm condition has
cleared
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
On
On
Ack
Off
Off
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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.

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 activate the relay.
• If the digital inputs are assigned to the Interlock
Function, then they cannot be used to program
the meter remotely.
P- COMP+ S+ S-
3412 5
F4
6
+5 I1 I2 I3 I4 O1 O2 O3 O4 G
DO 1-4
GND
ACK
PDA1044 Digital I/O Module
1 2 3 4 5 6 7 8 9 10
DI 1-4
1 2 3 4 5
6
+5
I1
I2
I3
I4
O1
7
8
O2
O3
9
10
O4
G
DI 1-4
DO 1-4
5 VDC
GND
SW2
SW1
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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.
No equipment is needed to scale the analog output; simply program the display values to the corresponding mA output signal.
The Analog Output menu is used to program the 4-20 mA output based on display values.
For further details, see Setting Numeric Values on
page 35.

Reset Menu (reset)

The Reset menu is used to reset the totals, maximum or minimum reading (peak or valley) reached by the process; both may be reset at the same time by selecting “reset high & low” (rst HL).

Manual Control Menu (Contrl)

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

Enter the Password menu and program a six-digit password.
For instructions on how to program numeric values see Setting Numeric Values on page 35.
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.
Display
Parameter
Action/Setting
Gate
Gate
Enter Gate function menu
Lo G
Low gate
Program Low gate value
Hi G
High gate
Program High gate value
filter
Filter
Enter the Filter menu
Lo Spd
Low speed
Set the contact de­bounce filter value
Hi Spd
High speed
Select high speed filter
Round
Round
Set the rounding value for display variables
seriAl
Serial
Set serial communication parameters
SlaV Id
Slave ID
Set slave ID or meter address
baud
Baud rate
Select baud rate
Tr dLY
Transmit delay
Set transmit delay for serial communication
Parity
Parity
Select parity: Even, Odd, or None with 1 or 2 stop bits
t-byt
Time byte
Set byte-to-byte timeout
SelEct
Select
Enter the Select menu (function, cutoff, out)
Functn
Input signal conditioning
Select linear only, other functions are not applicable to pulse input
Linear
Linear
Set meter for linear function and select number of linearization points
Display
Parameter
Action/Setting
No PtS
Number of points
Set meter for 2 to 32­point linearization
CutofF
Cutoff
Set low-flow cutoff
Count
Count
Set the totals to count up or down from a set value
Tot C
Total count
Set the total to count up to or down from the programmed total value
Gtot C
Grand total count
Set the grand total to count up or down from from the programmed grand total value
AoutPr
Analog output programming
Program analog output parameters
Source
Source
Select source for the 4-20 mA output
O-rang
Overrange
Program mA output for display overrange
u-rang
Underrange
Program mA output for display underrange
nmAx
Maximum
Program maximum mA output allowed
nmin
Minimum
Program minimum mA output allowed
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
user
User I/O
Assign function keys and digital I/O
F1
F1 function key
Assign F1 function key
F2
F2 function key
Assign F2 function key
F3
F3 function key
Assign F3 function key
F4
F4 function
Assign F4 function (digital input)
dI I
Digital input 1
Assign digital input 1-4
dO 1
Digital output 1
Assign digital output 1-4
Diag
Diagnostics
Display parameter settings
LED t
LED test
Test all LEDs (press menu to exit test)
Info
Information
Display software number and version
Erase
Erase
Erase MeterView Pro software stored in meter’s memory
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Gate Function (Gate)
The gate function is used for displaying slow pulse rates. Using the programmable gate, the meter is able to display pulse rates as slow as 1 pulse every 999.9 seconds (0.001 Hz). The gate function can also be used to obtain a steady display reading with a fluctuating input signal.
The gate function (Gate) is the first option in the Advanced Features menu. There are two settings for the Gate, low gate (Lo G) and high gate (Hi G).
Low Gate (Lo G)
For most applications, low gate setting should be left at 1.0 second. Increase low gate setting to obtain a steadier rate display. The rate display will update in accordance with the low gate setting, for example if low gate is set at 10.0, the display will update every 10 seconds; changes in rate between updates will not be reflected until next display update.
High Gate (Hi G)
Set the high gate value to correspond to the highest expected pulse period (lowest pulse rate). For instance, if the meter must display a rate when there is 1 pulse coming into the meter every 10 seconds, set the high gate to 11.0 seconds. When the signal is removed from the meter, the display will show the last reading for 11 seconds; then it will read zero.
Gate Settings
Slow Pulse Rate
Low Gate* (sec)
High Gate (sec)
Min Freq** (Hz)
1.0
2.0
0.5000
1.0
10.0
0.1000
1.0
20.0
0.0500
1.0
100.0
0.0100
1.0
200.0
0.0050
1.0
400.0
0.0025
1.0
800.0
0.0012
1.0
999.9
0.0010
*The low gate setting corresponds to the display update rate and is used to stabilize the display reading with a fluctuating signal.
**The minimum frequency is dependent on high gate setting.
Contact De-Bounce Filter (FiLter)
The filter function (FiLter) can be used for applications where the meter is set up to count pulses generated by switch contacts. The filter value can be set anywhere between 2 and 50, the higher the value, the greater the filtering.
The filter function (Filter) is the second option in the Advanced Features menu. There are two settings, Hi SPd (high speed) and Lo SPd (low speed), press ENTER when Lo SPd is displayed to enable the filter function. Program the filter value, so that there are no extra counts when a contact closure is completed.
Filter Settings
Contact De-Bounce Filter
Filter Setting
Speed Setting
Max Freq (Hz)
2
Lo SPd
999
4
Lo SPd
499
8
Lo SPd
249
16
Lo SPd
124
32
Lo SPd
62
40
Lo SPd
50
50
Lo SPd
40
N/A
Hi SPd
30,000

Rounding Feature (round)

The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used in addition to the filter function.
Rounding causes the display to round to the nearest value according to the rounding selected. This setting affects the last two digits, regardless of decimal point position.
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Modbus RTU Serial Communications (serial)

The meter is equipped with serial communications capability as a standard feature using Modbus RTU Serial Communication Protocol.
The meter may be connected to a PC for initial configuration via the on-board USB connection. For ongoing digital communications with a computer or other data terminal equipment, use the RS-485 connection with the appropriate serial converter; see Ordering Information on page 7 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 ProtEX-MAX 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.

Select Menu (SElEct)

The Select menu is used to select the input signal conditioner applied to the input (linear), low-flow cutoff, and analog output programming. The multi­point 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: linear, where the multi-point linearization is part of the linear function selection.
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.

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 under the linear function. The multi-point linearization can be used to linearize the display for non-linear signals.

Low-Flow Cutoff (CutofF)

The low-flow cutoff feature allows the meter to be programmed so that it always displays zero at very low flow rates.
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.
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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 (e.g. rate)
2. Overrange: Analog output value with display in overrange condition
3. Underrange: Analog output value with display in underrange condition
4. Max: Maximum analog output value allowed regardless of input
5. Min: Minimum analog output value allowed regardless of input
6. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output
Analog Output Source
The source for generating the 4-20 mA output may be assigned to the rate/process variable, total, grand total, maximum or minimum value reached by the rate/process, one of the set points, or the Modbus PV input.
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 PD8-6300 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 22: 4-20 mA Output Connections on page 30 for details.
2. Turn on all devices. Allow for a 15 to 30 minute warm-up.
3. Go to the Advanced Features menu, navigate to Select (Select) and choose Analog Output Programming (AoutPr) → Calibration (Calib) menu and press Enter.
4. The display will show 4 nmA. The PD8-6300 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 PD8-6300 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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Programmable Function Keys User Menu (user)

The User menu allows the user to assign the front 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 total, reset grand total, 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. reset total, reset grand total, alarms, relay acknowledgement, reset or display max, min). The digital outputs can be used to trigger external alarms or lights to indicate these specific events.
Function Keys & Digital I/O Available Settings
Refer to the following table for descriptions of each available function key or digital I/O setting.
Function Keys & Digital I/O Available Settings
Display
Description
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.
Ln1 Hi
Display maximum display value on line 1
Ln1 Lo
Display minimum display value on line 1
Ln1 HL
Display maximum & minimum display values on line 1
Ln2 Hi
Display maximum display value on line 2
Ln2 Lo
Display minimum display value on line 2
Ln2 HL
Display maximum & minimum display values on line 2
Ln2 gt
Display the grand total on line 2
Function Keys & Digital I/O Available Settings
Display
Description
F On 1*
Force relay 1 (*through 4) into the on state. This function is used in conjunction with a digital input to achieve interlock functionality.See
Setting Up the Interlock Relay (Force On) Feature on page 47 for details
about interlock relays.
Contrl
Directly access the control menu
disabl
Disable the selected function key or digital I/O
AcH
Acknowledge all active relays that are in a manual operation mode such as auto-manual or latching
Reset
Directly access the reset menu
Rst t
Reset the total
Rst gt
Reset the grand total
Rst Hi
Reset the stored maximum display value
Rst Lo
Reset the stored minimum display value
Rst HL
Reset the stored maximum & minimum display values
Dsplay
Directly access the display menu
Line 1
Directly access the display line 1 menu
Line 2
Directly access the display line 2 menu
nmenu
Mimic the menu button functionality (digital inputs only)
rigHt
Mimic the right arrow/F1 button functionality (digital inputs only)
up
Mimic the up arrow/F2 button functionality (digital inputs only)
Enter
Mimic the enter/F3 button functionality (digital inputs only)
Alnm 1*
Provide indication when alarm 1 (*through 4) has been triggered (digital outputs only)
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55

Meter Operation

When installed, the primary way to operate the meter is with the SafeTouch through-glass buttons that allow the user to perform various operations without removing the cover and exposing the electronics to the hazardous environment. The user can also operate the meter by connecting a suitable control station or switch to one of the digital inputs that can be used to perform various operations on the meter based on the Programmable Function Keys. Finally, certain operations can be performed on the meter with MeterView Pro software or through Modbus commands.
The two default operations that can be performed with the meter’s SafeTouch buttons are:
1. Display the maximum and minimum readings
2. Acknowledge the relays
In addition, the user can program the SafeTouch Buttons to perform a variety of useful operations by reassigning them to other functions per Function Keys & Digital I/O Available Settings on page 54.

Button Operation

The following table shows the default operations for the F1, F2, and F3 SafeTouch Buttons, Displaying and resetting the maximum and minimum values and resetting the relays:
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
To learn more about SafeTouch buttons, see this video:
predig.com/videos/Safetouch_Buttons

SafeTouch Buttons

The ProtEX-MAX is equipped with four sensors that operate as through-glass buttons so that it can be programmed and operated without removing the cover (and exposing the electronics) in a hazardous area.
These buttons can be disabled for security by selecting DISABLE on the switch labeled NO-CONTACT BUTTONS located on the connector board.
To actuate a button, press one finger to the glass directly over the marked button area. Then retract finger more than three inches from the glass before pressing the next button. When the cover is removed, the four mechanical buttons located next to the sensors are used. The sensors are disabled when a mechanical button is pressed and will automatically be re-enabled after 60 seconds of inactivity. The SafeTouch Buttons are designed to filter normal levels of ambient interference and to protect against false triggering, however, it is recommended that the SafeTouch Buttons be disabled (slide switch to DISABLE) if there is an infrared interference source in line-of-sight to the display.
The SafeTouch Buttons are configured by default to duplicate the function of the front panel mechanical pushbuttons associated with the integrated meter. The symbols by each SafeTouch button correspond to a mechanical button as shown in the table to the left.

SafeTouch Button Tips:

• To the extent possible, install the display facing away from sunlight, windows, reflective objects and any sources of infrared interference.
• Keep the glass window clean.
• Tighten the cover securely.
• Use a password to prevent tampering.
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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 54 for details.
See the table under Button Operation on page 55, which 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 V in the case of digital inputs 1-4 or with an active high signal, see Digital I/O Connections on page 29 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 54 for details.
Total Reset Capabilities
The user may reset the total via a SafeTouch button, the F4 terminal at the back of the meter, an external contact closure on the digital inputs, automatically via user selectable preset value and time delay, or through serial communications.
Total Reset via SafeTouch Button
The three through-glass SafeTouch button function keys can be programmed to reset the total and grand total. This makes it possible for the user to reset either the total or the grand total without opening the enclosure cover and without the need for external devices. Of course, if the total or grand total is password protected, they will not reset when the function key is pressed.
Total Reset via F4 Terminal
The PD8-6300 includes a digital input (referred to as the F4 terminal) located on the back of the electronics module as standard that can be used to reset the total or grand total, among other things. This is the preferred method for externally resetting the total or grand total because it does not interfere with the operation of the SafeTouch buttons for programming as described below in the Total Reset via Digital Input section.
Total Reset via Digital Input
In addition to the F4 digital input described above, the PD8-6300 also includes four digital inputs that can be used to reset the total or grand total. However, if a digital input is used to reset the total, or for some other purpose, the corresponding through-glass SafeTouch button will function as a programming key.
Total Reset via Preset Value
The total and grand total can be programmed for automatic reset based on a preset value determined by the user. In the automatic reset mode, a programmable time delay is available to reset the total or grand total after the assigned preset is reached.
Total Reset via Serial Communications
The total and grand total can be reset via serial communications such as a Modbus command or MeterView Pro.
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Maximum/Minimum Readings

The max & min readings (peak & valley) reached by the process can be displayed either continuously or momentarily:
1. Display briefly by assigning to the F1-F3 function keys, F4 (digital input) 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), F4 (digital input), and the digital inputs can be programmed to reset the max & min readings. The meters are set at the factory to display the max reading by pressing the Up arrow/F2 button and to use the Right arrow/F1 button to access the Reset menu.
To display max reading using function key with factory defaults:
1. Press Up arrow/F2 button to display maximum reading since the last reset/power-up.
2. To reset max/min press Right arrow/F1 button to access the Reset menu. The max & min displays are reset to actual values.
3. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (d Hi), Min (d Lo), or toggle between Max and Min (d HL) every 10 seconds.

Totalizer Overflow Displays Total to 9 Digits

These flow rate/totalizers can display up to nine digits of total flow with the total overflow feature.
In the diagrams above, the flow totalizer is displaying 532,831,470 by toggling between a display of “oF 532” and “831470”. Notice the T with arrow ▲ symbol is lit up indicating the display is in overflow mode.
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Troubleshooting

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

Diagnostics Menu (diag)

The Diagnostics menu is located in the Advanced Features menu, to access Diagnostics menu see Advanced Features Menu on page 50.
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 50.

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 on page 50.
2. Press Up arrow to go to Diagnostics (diAG) menu
3. Press and hold Right arrow for three seconds,
press Enter when display flashes reset.
Note: If Enter is not pressed within three seconds, the display returns to the Diagnostics menu.
4. The meter goes through an initialization sequence (similar as on power-up) and loads the factory default settings.

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
Pulse
Total
yes
Total enabled
Units
units
Rate / total / gr. total pulse / pulse / pulse
Filter
filter
Hi Spd
K-factor
Factor
1.000
Function
Functn
Linear
Number of points
No Pts
2
Input 1
InP 1
00000.0
Display 1
Dis 1
00000.0
Input 2
InP 2
10000.0
Display 2
Dis 2
10000.0
Decimal point
Ddddd.d
1 place
Cutoff value
CutofF
0.0 (disabled)
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Factory Defaults & User Settings
Parameter
Display
Default Setting
Display assignment
dSPLAY
Display line 1
Line 1
Rate/Process
Display line 2
Line 2
Total value
Display intensity
d-Inty
6
Total time base
T tb
Second
Total conversion factor
T CF
1.000 Total reset
T rst
Manual
Grand total time base
GT tb
Second
Grand total conversion factor
gT CF
1.000
Grand total reset
gT rst
Manual
Relay 1 assignment
Asign1
Total
Relay 2 assignment
Asign2
Total
Relay 3 assignment
Asign3
Rate
Relay 4 assignment
Asign4
Rate Relay 1 action
Act 1
Automatic
Relay 1 set point
Set 1
100.0
Relay 1 reset point
RSt 1
000.0
Relay 2 action
Act 2
Automatic
Relay 2 set point
Set 2
200.0
Relay 2 reset point
RSt 2
000.0
Relay 3 action
Act 3
Automatic
Relay 3 set point
Set 3
300.0
Relay 3 reset point
RSt 3
250.0
Relay 4 action
Act 4
Automatic
Relay 4 set point
Set 4
400.0
Relay 4 reset point
RSt 4
350.0
Fail-safe relay 1
Fls 1
Off
Fail-safe relay 2
Fls 2
Off
Fail-safe relay 3
Fls 3
Off
Fail-safe relay 4
Fls 4
Off
On delay relay 1
On 1
0.0 sec
Off delay relay 1
Off 1
0.0 sec
On delay relay 2
On 2
0.0 sec
Off delay relay 2
Off 2
0.0 sec
Factory Defaults & User Settings
Parameter
Display
Default Setting
On delay relay 3
On 3
0.0 sec
Off delay relay 3
Off 3
0.0 sec
On delay relay 4
On 4
0.0 sec
Off delay relay 4
Off 4
0.0 sec
Display 1 analog out
Dis 1
0.0 Output 1 value
Out 1
4.000 mA
Display 2 analog out
Dis 2
1000.0
Output 2 value
Out 2
20.000 mA
Source analog output
Source
Rate/process Overrange output
O-rang
21.000 mA
Underrange output
u-rang
3.000 mA
Maximum output
nmAx
23.000 mA
Minimum output
nmin
1.000 mA
Slave ID (Address)
Slave Id
247
Baud rate
baud
9600
Transmit delay
Tr dly
50 ms
Parity
Parity
Even
Byte-to-byte timeout
t-byt
010 (0.1 sec) F1 function key
F1
Reset max & min
F2 function key
F2
Line 1: Max (Hi)
F3 function key
F3
Acknowledge relays
F4 function
F4
Acknowledge relays
Digital input 1
dI 1
Menu
Digital input 2
dI 2
Right arrow
Digital input 3
dI 3
Up arrow
Digital input 4
dI 4
Enter
Digital output 1
dO 1
Alarm 1
Digital output 2
dO 2
Alarm 2
Digital output 3
dO 3
Alarm 3
Digital output 4
dO 4
Alarm 4
Password 1
Pass 1
000000 (unlocked)
Password 2
Pass 2
000000 (unlocked)
Password 3
Pass 3
000000 (unlocked)
Total password
Total
000000 (unlocked)
Grand total password
Gtotal
000000 (unlocked)
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Troubleshooting Tips

This meter is a highly sophisticated instrument with an extensive list of features and capabilities. If the programming 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 programming 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 or Master Password of 508655.
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. Minimum input span requirements
Meter displays
1. 99999
2. -9999
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 gate values
Display response is too slow
Check filter and gate values
Display reading is not accurate
Check scaling or calibration
Display does not respond to input changes, reading a fixed number
Check the 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. M-Link Connector installed between PROVU electronics and ProtEX-MAX connector board. See Figure 4: Integrated PROVU Required Connections on page 24
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.
SafeTouch buttons do not respond
1. If mechanical button was pushed, the SafeTouch buttons will be re-enabled automatically 60 seconds after the last button push.
2. If slide switch on connector board is in DISABLE position, switch to ENABLE.
3. Strong direct sunlight may interfere with SafeTouch button operation. It is recommended to operate the buttons by standing so as to block direct sunlight.
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Troubleshooting Tips
Symptom
Check/Action
Serial Communications METER LINK LED Indicator is off
Check:
1. Modular cable connection
2. Power to the device
If only the TX (or DATA IN) data status LED is flashing when serial communications attempted
Check:
1. Serial cable
2. Instrument address & baud rate
3. Program address & baud rate
If both data status LEDs (TX and RX) are off when trying to communicate
Remove all unnecessary cables and instruments from the bus. Try getting the system to work with only one device (to ease troubleshooting) and then expand the system one device at a time.
Communications slow
Increase the baud rate
Random communication errors
1. Increase the TX delay time
2. Decrease the baud rate
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 58. In addition, for best results, we recommend using the free MeterView Pro software for all programming needs.
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NOTES
Page 63
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PD8-6300 Pulse Input Rate/Totalizer, Counter & Tachometer
Instruction Manual
PRECISION DIGITAL CORPORATION
www.predig.com
LIM8-6300_F
SFT039 Ver 4.010 & up
05/22
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
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