Page 1
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
• Fully-Approved Explosion-Proof Analog Input Flow Rate/Totalizers
• 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs with ±0.03% Accuracy
• 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 24 VDC @ 25 mA Transmitter Power Supply
• Easy Field Scaling in Engineering Units without Applying an Input
• 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 for Rate or Total
• 4-20 mA Output for Rate or Total
• Display Open Channel Flow with Programmable Exponent Feature
• 32-Point Linearization & Square Root Extraction
• 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)
• Pipe Mounting Kits
• Stainless Steel Tag Available
• 3-Year Warranty
MeterView Pro
USB Install
Page 2
2
Page 3
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
3
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.
Page 4
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
4
Table of Contents
Introduction ......................................................................................................... 7
Ordering Information .......................................................................................... 7
Key Features ....................................................................................................... 9
Specifications ................................................................................................... 17
General ................................................................................................ .......... 17
Process Inputs ............................................................................................. 18
Rate/Totalizer ................................................................................................ 18
Relays ............................................................................................................ 19
USB Connection ........................................................................................... 19
Isolated 4-20 mA Transmitter Output ......................................................... 19
RS-485 Serial Communications .................................................................. 20
Modbus RTU Serial Communications ........................................................ 20
Digital Input (F4) ........................................................................................... 20
Digital Inputs & Outputs .............................................................................. 20
MeterView Pro Software .............................................................................. 20
Compliance Information................................................................................... 21
Electromagnetic Compatibility .................................................................... 21
Product Ratings and Approvals .................................................................. 21
EU Declaration of Conformity .......................................................................... 22
Safety Information ............................................................................................ 22
Installation .......................................................................................................... 22
Unpacking ..................................................................................................... 22
Mounting ....................................................................................................... 23
Installation Overview ................................................................................... 25
MeterView Pro Software .............................................................................. 25
Transmitter Supply Voltage Selection (P+, P-) .......................................... 26
Connections ................................................................................................. 26
Required & Factory Wired Connection ....................................................... 26
PROVU Electronics Module Layout ............................................................. 27
USB Connection ........................................................................................ 27
Power Connections .................................................................................... 28
Signal Connections .................................................................................... 29
Relay Connections ..................................................................................... 29
Interlock Relay Feature .............................................................................. 29
Switching Inductive Loads.......................................................................... 30
RS-485 Connections .................................................................................. 30
RS-485 Multi-Drop Connection .................................................................. 30
Digital I/O Connections .............................................................................. 31
F4 Digital Input Connections ...................................................................... 31
4-20 mA Output Connections ..................................................................... 31
Analog Output Power Supply ..................................................................... 31
Remote Programming ................................................................................ 31
Setup and Programming .................................................................................. 32
Overview ....................................................................................................... 32
LED Status Indicators .................................................................................. 32
Programming Buttons ................................................................................. 33
SafeTouch Buttons ...................................................................................... 33
Display Functions & Messages ................................................................... 34
Main Menu ..................................................................................................... 36
Setting Numeric Values ................................................................ ............... 36
Setting Up the Rate/Totalizer Meter (setup) ............................................... 36
Setting the Input Signal (Input) ................................................................. 37
Setting the Totalizer Features (total) ....................................................... 37
Setting the Display Units or Custom Tags (units) .................................... 37
Setting the Decimal Point (dEc.pt) ............................................................. 38
Programming the Rate/Totalizer (prog) ..................................................... 38
Setting the Display Parameter & Intensity (dsplay) .................................. 40
Display Intensity (d-Inty).......................................................................... 40
Page 5
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
5
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 Action for Loss of 4-20 mA Input (Loop Break) ................................ 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 with Clear (LatcH) ............................................................. 46
Latching Relay (Lt-Clr) ............................................................................ 46
Acknowledging Relays ............................................................................... 47
Pump Alternation Control Applications (Altern) ....................................... 47
Setting Up the Interlock Relay (Force On) Feature .................................... 48
Scaling the 4-20 mA Analog Output (Aout) ................................................ 49
Reset Menu (reset) ...................................................................................... 49
Manual Control Menu (Contrl) ................................................................... 49
Setting Up the Password (pass) .................................................................. 50
Protecting or Locking the Meter ................................................................. 50
Total Reset Password & Non-Resettable Total .......................................... 50
Making Changes to a Password Protected Meter ...................................... 50
Disabling Password Protection .................................................................. 50
Advanced Features Menu ............................................................................ 51
Advanced Features Menu & Display Messages ......................................... 51
Noise Filter (filter) ................................................................................. 52
Noise Filter Bypass (bypass) ..................................................................... 52
Rounding Feature (round) ......................................................................... 52
Modbus RTU Serial Communications (serial) ......................................... 52
Select Menu (SElEct) ................................................................................ 53
Input Signal Conditioning (Functn) ............................................................ 53
Low-Flow Cutoff (CutofF) .......................................................................... 55
Totalizer Count Up/Down (Count) .............................................................. 55
Analog Output Programming (AoutPr) ...................................................... 55
Programmable Function Keys User Menu (user) ...................................... 56
Internal Source Calibration (ICAL) ............................................................. 57
Meter Operation ................................................................................................ 58
Button Operation .......................................................................................... 58
SafeTouch Buttons ...................................................................................... 58
Function Keys Operation ............................................................................. 59
Digital Inputs Operation ............................................................................... 59
Maximum/Minimum Readings ..................................................................... 60
Totalizer Overflow Displays Total to 9 Digits ............................................. 60
Troubleshooting ............................................................................................... 61
Diagnostics Menu (diag) ............................................................................. 61
Testing the Display LEDs ........................................................................... 61
Determining Software Version ................................................................... 61
Reset Meter to Factory Defaults.................................................................. 61
Factory Defaults & User Settings ............................................................... 62
Troubleshooting Tips ................................................................................... 63
Page 6
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
6
Table of Figures
Figure 1. Enclosure Dimensions – Front View ............................................... 23
Figure 2. Enclosure Dimensions – Side Cross Section View ....................... 23
Figure 3. Transmitter Supply Voltage Selection ............................................ 26
Figure 4. Integrated PROVU Required Connections ....................................... 26
Figure 5. PROVU Electronics Module Layout .................................................. 27
Figure 6. USB Connection ............................................................................... 27
Figure 7. Power Connections .......................................................................... 28
Figure 8. Transmitter Powered by Internal Supply ........................................ 29
Figure 9. Transmitter Powered by External Supply or Self-Powered ........... 29
Figure 10. Voltage Input Connections ............................................................ 29
Figure 11. Relay Connections ......................................................................... 29
Figure 12. AC and DC Loads Protection ......................................................... 30
Figure 13. Low Voltage DC Loads Protection ................................................ 30
Figure 14. RS-485 Connection ......................................................................... 30
Figure 15. Three-Wire RS-485 Connection ..................................................... 30
Figure 16. Digital Input and Output Connections .......................................... 31
Figure 17. F4 Digital Input Connections ......................................................... 31
Figure 18. 4-20 mA Output Connections ........................................................ 31
Figure 19. Analog Output Supply Powering Other Devices .......................... 31
Figure 20. Interlock Connection ...................................................................... 29
Page 7
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
7
Introduction
The ProtEX-MAX PD8-6200 is an explosion-proof,
analog 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 current and voltage signals (e.g.
4-20 mA, 0-10 V) that can be scaled by the user to
display flow rate in engineering units. One of the most
useful features of the dual-line display is the ability to
display flow rate and total at the same time, or other
combinations of rate, total and grand total.
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 PD8-6200-6H7 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.
Using the PD8-6200 Like a
PD8-6000 Process Meter
The PD8-6200 is essentially a PD8-6000 process
meter with flow totalization capability. The flow
totalization capability can easily be de-activated for
customers that would prefer their PD8-6200 behave
like a PD8-6000 process meter. For instructions on
how to do this, see Setting Up the Rate/Totalizer
Meter (setup) on page 36 for details.
Ordering Information
85-265 VAC Models
Model
Standard
Features
Options
Installed
PD8-6200-6H0
5 Digital Inputs,
4 Digital Outputs,
RS-485
Communications
No options
PD8-6200-6H7
4 relays
4-20 mA output
12-24 VDC Models
Model
Standard
Features
Options
Installed
PD8-6200-7H0
5 Digital Inputs,
4 Digital Outputs,
RS-485
Communications
No options
PD8-6200-7H7
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
Page 8
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
8
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
4-20 mA Connections
This Tech Tips video shows how to make connections
to power the transmitter with the ProVu’s
(ProtEX-MAX’s) 24 VDC power supply.
predig.com/videos/4-20_mA_Connections
Use ProtEX-MAX for Pump Control
Learn how to use the ProVu (ProtEX-MAX) meter as
an explosion-proof pump controller. See how the four
relays can be used to alternate two pumps and
provide high and low alarms.
predig.com/videos/PumpControl
Page 9
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
9
Key Features
Connections for PD8-6200-6H7 & PD8-6200-7H7
The Only Explosion-Proof Flow Rate/Totalizer You Will Ever Need
The ProtEX-MAX PD8-6200 explosion-proof flow
rate/totalizers are specifically designed for displaying
flow rate and total from flowmeters with analog outputs.
The meter boasts specifications, features and
functionality that make it the only hazardous area flow
rate/totalizer you will ever need.
The PD8-6200 has all the same features as our
PD6200 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 PD8-6200 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 PD8-6200 such a useful device is its
built-in 24 VDC power supply to drive the transmitter
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 PD8-6200 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.
Page 10
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
10
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 ProtEX-MAX can be calibrated
either by applying a known signal or scaled by
entering a desired value with the front panel buttons
or MeterView Pro software. Most customers will use
the scaling method because it is simpler and does not
require a calibrated signal source. Selecting the input
to be current or voltage is done with the front panel
buttons or MeterView Pro software. Once programming
is completed it 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.
Page 11
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
11
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.
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.
Page 12
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
12
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 PD8-6200 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
PD8-6200 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 or manual 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.
Sampling Function
(PV Triggered Timed Relay)
The sampling function allows the operator to program
a set point for a “sampling” relay. When the process
(rate or 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.
Open Channel Flow
The PD8-6200, in combination with an ultrasonic level
transmitter, makes for an economical way to measure
and display open channel flow rate and total in most
weirs and flumes and take periodic samples. All the user
needs to do is enter the exponent for the weir or flume
into the PD8-6200 and the meter automatically raises
the input signal to that power. Sampling can be based
on the total flow or the flow rate. For instance, to display
open channel flow rate and total from a 3" Parshall flume
and take a one pint sample every 100,000 gallons, the
user would program the PD8-6200 as follows:
Function
Desire
Programming
Open
Channel
Flow
3" Parshall flume
Set Programmable
Exponent to 1.547
Flow Rate
Millions of
Gallons per Day
(MGD)
Set 4 mA = 0
& 20 mA = 3.508
Time base = Day
Total
Millions of
Gallons
Set Totalizer
Conversion Factor = 1
(password protect
total reset)
NonResettable
Grand Total
Program meter
so grand total can
never be reset
Set non-resettable
grand total password
Display
Display Flow
Rate and Total
at the same time
Set main display for
Grand Total and second
display to toggle
between rate and total.
Sampling
Take a 1 pint
sample every
100,000 gallons
Set up relay for
sampling and to trip
every 0.1 million
gallons. Set up
sampling time such
that 1 pint is sampled.
Page 13
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
13
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 across 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.
Page 14
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
14
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 making them
removable also.
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
Page 15
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
15
Transmitter Power Supplies
Meter Powers Transmitter
One of the most useful standard features of the
PD8-6200 is its built-in isolated, 24 V @ 25 mA power
supply to power the transmitter. This feature saves
money by eliminating an external power supply and
also simplifies wiring by reducing the number of
devices in the loop. It can be configured for 5, 10, or
24 V (default) by means of a simple internal jumper.
This power supply is even available on meters that
are powered from DC power (24 V @ 25 mA). To use
an external power supply instead of the internal power
supply, simply make connections to different terminals
on the ProtEX-MAX.
The following diagram illustrates how to wire the
ProtEX-MAX so it will power the transmitter:
Meter Powers 4-20 mA
Output
Not only can the ProtEX-MAX power the 4-20 mA
input signal, but an additional power supply of
24 V @ 25 mA is provided with the 4-20 mA output
option to power the 4-20 mA output.
Fuse Prevents Current
Overload
Another very useful aspect of the ProtEX-MAX is that
the current input is protected against current overload
by a resettable fuse. The fuse limits the current to a
safe level when it detects a fault condition, and
automatically resets itself when the fault condition is
removed.
Page 16
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
16
Useful Tools
PD9501 Multi-Function Calibrator
This PD9501 Multi-Function Calibrator has a variety
of signal measurement and output functions, including
voltage, current, thermocouple, and RTD.
PD9502 Low-Cost Signal Generator
The PD9502 is a low-cost, compact, simple to use
4-20 mA or 0-10 VDC signal generator. It can easily
be set for 0-20 mA, 4-20 mA, 0-10 V or 2-10 V
ranges. Signal adjustment is made with a one-turn
knob. A 15-27 VDC wall plug is provided with the
instrument. Optional USB power bank is available.
Page 17
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
17
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
5/second (200 ms)
LED Status
Indicators
See LED Status Indicators on page 32 for
details.
Overrange
Display flashes 999999
Underrange
Display flashes -99999
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, and
Modbus input
Display Line 2:
Same as Display Line 1; plus units, tag or
turned off
Additional displays are available if
parameter total is off, and parameter
d-SCAL is on: gross weight, gross & net
weight, PV1, PV2, and PCT
(refer to PD8-6000 instruction manual.)
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.
Noise Filter
Programmable from 2 to 199
(0 will disable filter)
Filter Bypass
Programmable from 0.1 to 99.9% of
calibrated span
Recalibration
All ranges are calibrated at the factory.
Recalibration is recommended at least
every 12 months.
Max/Min
Display
Max/min readings reached by the process
are stored until reset by the user or until
power to the meter is turned off.
Rounding
Select 1, 2, 5, 10, 20, 50, or 100
(e.g. rounding = 10, value = 123.45,
display = 123.50)
Password
Three programmable passwords restrict
modification of programmed settings and
two prevent resetting the totals.
Pass 1: Allows use of function keys and
digital inputs
Pass 2: Allows use of function keys, digital
inputs and editing set/reset points
Pass 3: Restricts all programming, function
keys, and digital inputs
Total: Prevents resetting the total manually
Gtotal: Prevents resetting the grand total
manually
Non-Volatile
Memory
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
Normal Mode
Rejection
Greater than 60 dB at 50/60 Hz
Isolation
4 kV input/output-to-power line
500 V input-to-output or output-to-P+ supply
Overvoltage
Category
Installation Overvoltage Category II:
Local level with smaller transient
overvoltages than Installation Overvoltage
Category III.
Environmental
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 23 for additional details.
Pipe Mounting:
Optional pipe mounting kit (PDA6848) allows
for pipe mounting. Sold separately. See Pipe
Mounting Instructions on page 24 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.
Page 18
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
18
Process Inputs
Inputs
Field selectable: 0-20 mA, 4-20 mA
10 V (0-5 V, 1-5 V, 0-10 V)
Modbus PV (Slave)
Isolated
Transmitter
Power Supply
Terminals P+ & P-: 24 VDC ± 10%.
selectable for 24, 10, or 5 VDC supply
(internal jumper J4)
All models transmitter supply
rated @ 25 mA max
Accuracy
±0.03% of calibrated span ±1 count,
square root & programmable exponent
accuracy range: 10-100% of calibrated
span
Temperature
Drift
0.005% of calibrated span/C max from
0 to 65C ambient, 0.01% of calibrated
span/C max from -40 to 0C ambient
Input Signal
Conditioning
Linear, square root, programmable
exponent, or round horizontal tank volume
calculation
Multi-Point
Linearization
2 to 32 points
Programmable
Exponent
User selectable from 1.0001 to 2.9999 for
open channel flow
Round
Horizontal
Tank
Diameter & Length: 999.999 inch or cm
calculates volume in gallons or liters
respectively
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
Range
Input Range
Minimum Span
Input 1 & Input 2
4-20 mA
0.15 mA
10 V
0.10 V
An error message will appear if the input 1
and input 2 signals are too close together.
Input
Impedance
Voltage ranges: greater than 500 k
Current ranges: 50 - 100 (depending on
internal resettable fuse impedance)
Input
Overload
Current input protected by an internal
resettable fuse, 30 VDC max. Fuse resets
automatically after fault is removed.
HART
Transparency
The meter does not interfere with existing
HART communications; it displays the
4-20 mA primary variable and it allows the
HART communications to pass through
without interruption. The meter is not
affected if a HART communicator is
connected to the loop. The meter does not
display secondary HART variables.
Rate/Totalizer
Rate Display
Indication
-99999 to 999999, lead zero blanking.
“R” LED illuminates while displaying rate
Time Base
User selectable rate time base in units per
second, minute, hour, or day
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.
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
User selectable via SafeTouch button, F4
terminal at back of meter, 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 programming or
SafeTouch buttons.
Non-Resettable
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 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.
Page 19
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
19
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 30 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:
4.000 to 20.000 = 4-20 mA output
Analog Out
Programming
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and
break
Accuracy
± 0.1% 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
Note: Analog output drift is separate from
input drift.
Isolated
Transmitter
Power Supply
Terminals I+ & R: 24 VDC 10%. Used to
power the 4-20 mA.
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
Page 20
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
20
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 56 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
Remote operation of front-panel buttons,
acknowledge/reset relays, reset total and
grand total, reset max/min values.
See Function Keys & Digital I/O Available
Settings on page 56 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.
Page 21
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
21
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.
Page 22
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
22
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.
Page 23
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
23
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.
Page 24
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
24
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
Page 25
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
25
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.
Page 26
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
26
Transmitter Supply Voltage Selection (P+, P-)
All meters, including models equipped with the
12-24 VDC power option, are shipped from the
factory configured to provide 24 VDC power for
the transmitter or sensor.
If the transmitter requires 5 or 10 VDC excitation,
the 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. Transmitter 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
Page 27
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
27
PROVU Electronics Module Layout for PD8-6200-6H7 and PD8-6200-7H7*
* For models PD8-6200-6H0 and PD8-6200-7H0 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.
Page 28
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
28
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
+
-
Page 29
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
29
Signal Connections
Signal connections are made to a six-terminal
connector labeled SIGNAL. The COM (common)
terminal is the return for the 4-20 mA and the 10 V
input signals.
Current and Voltage Connections
The following figures show examples of current and
voltage connections.
There are no switches or jumpers to set up for current
and voltage inputs. Setup and programming is
performed through the programming buttons or
MeterView Pro software.
Figure 8. Transmitter Powered by Internal Supply
Figure 9. Transmitter Powered by External Supply
or Self-Powered
The current input is protected against current
overload by an internal resettable fuse. The display
may or may not show a fault condition depending on
the nature of the overload.
The fuse limits the current to a safe level when it
detects a fault condition, and automatically resets
itself when the fault condition is removed.
Figure 10. Voltage Input Connections
The meter is capable of accepting any voltage from
-10 VDC to +10 VDC.
Relay Connections
Relay connections are made to two six-terminal
connectors labeled RELAY1 – RELAY4. Each relay’s
C terminal is common only to the normally open (NO)
and normally closed (NC) contacts of the
corresponding relay. The relays’ C terminals should
not be confused with the COM (common) terminal of
the INPUT SIGNAL connector.
Figure 11. 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 48.
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 12. Interlock Connection
C NONO NC NC C
RELAY4 RELAY3
4 36 5 2 1
C NONO NC NC C
RELAY2 RELAY1
4 36 5 2 1
Page 30
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
30
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 13. 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 14. 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.
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 15. 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 16. Three-Wire RS-485 Connection
C
R
C
R
__ __
DI DI DO DO
Page 31
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
31
Digital I/O Connections
Digital inputs and outputs are provided in order to
expand the functionality of the meter. Digital input
connections are made via a push button or switch to
the appropriate digital input terminal and the +5 VDC
terminal. Digital output connections are made by
wiring from the appropriate digital output terminal to
the ground terminal.
Figure 17. 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 56 for a complete list of capabilities.
Figure 18. F4 Digital Input Connections
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are
made to the connector terminals labeled mA OUT.
The 4-20 mA output may be powered internally or
from an external power supply.
Figure 19. 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 20. 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.
P- COMP+ V+ mA+
3412 5
F4
6
4-20 mA Input
Remote Display, PLC,
Chart Recorder, Etc.
-
+
RI- I+
132
RELAY1
mA OUT
24 V
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-+
RI- I+
132
RELAY1
321
-
24 V
mA OUT
Internal Power Supply
and Analog Output
321
Active Output Loop Passive Output Loop
RI- I+
132
24 VDC
Powered
Device
24 V
+-
Page 32
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
32
Setup and Programming
There is no need to recalibrate the meter when first received from the factory.
The meter is factory calibrated prior to shipment for milliamps and volts with
calibration equipment that is certified to NIST standards.
Overview
There are no jumpers to set for the meter input selection.
Setup and programming is done using MeterView Pro or through the programming buttons.
After power and input signal connections have been completed and verified, apply power to the meter.
LED Status Indicators
LED
State
Indication
1-4
Steady
Alarm condition based on set and reset points, independent of relay
status in certain configurations. (Available on all meter configurations,
including those without relays installed)
1-4
Flashing
Relay interlock switch open
1-4 & M
Flashing
Relay in manual control mode
R
Steady
Rate
T
Steady
Total
T
Flashing
Meter in Tare mode
G & T
Steady
Grand Total
▲
Steady
Total overflow.
(“oF” is displayed to the left of total overflow and ▲ LED is illuminated)
M
Flashing
Analog output in manual control mode
Page 33
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
33
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.
Page 34
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
34
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
nmA
4-20 mA
Set meter for 4-20 mA
input
volt
0-10 VDC
Set meter for 10 VDC
input
Total
Total
Enable or disable
totalizer features
d-SCAL
Dual-scale
Enter d-SCAL menu and
select Yes for dual- scale
or No for single scale
display
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
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 rest mode:
auto or manual
GT tb
Grand total
time base
Program grand total time
base
Display Functions & Messages
Display
Parameter
Action/Setting
Description
GT CF
Grand total
conversion
factor
Program grand total
conversion factor
GT rst
Grand total
reset
Program grand total rest
mode: auto or manual
Auto
Automatic
Press Enter to set
automatic total reset
T dly
Time delay
Program time delay for
total auto reset
nmAn
Manual
Press Enter to reset total
manually
dsplay
Display
Enter the Display menu
Line 1
Line 1
Press Enter to assign the
Main display parameter
(default: PV or rate)
Line 2
Line 2
Press Enter to assign the
small 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, or grand total
Asign1
Assign 1
Relay 1 assignment
totAL
Total
Assign relay to total
G total
Grand total
Assign relay to grand
total
nm bus
Modbus
Select to display Modbus
input or to assign
Modbus input as the
analog output source
rate
Rate
Assign relay to rate
RLY 1
Relay 1
Relay 1 setup
Act 1
Action 1
Set relay 1 action
Auto
Automatic
Set relay for automatic
reset
A-nman
Auto-manual
Set relay for automatic &
manual reset
any time
LatCH
Latching
Set relay for latching
operation (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 pump
alternation control (relays
assigned to rate)
Sanmpl
Sampling
Set relay for sampling
operation
Page 35
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
35
Display Functions & Messages
Display
Parameter
Action/Setting
Description
OFF
Off
Disable relay and front
panel status LED
(Select Off to enable
Interlock feature)
Set 1
Set 1
Program set point 1
RSt 1
Reset 1
Program reset point 1
RLY 2
Relay 2
Relays 2-4 setup
FaiLSF
Fail-safe
Enter Fail-safe menu
FLS 1
Fail-safe 1
Set relay 1 fail-safe
operation
on
On
Enable fail-safe operation
off
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
break
Loop break
Set relay condition if loop
break detected
(For mA input only)
iGnorE
Ignore
Ignore loop break
condition
(Processed as a low
signal condition)
On
On
Relay goes to alarm
condition when loop
break is detected
OFF
Off
Relay goes to non-alarm
condition when loop
break is detected
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 Gt
Reset
grand total
Press Enter to reset
grand total
Rst Hi
Reset high
Press Enter to reset max
display
Rst Lo
Reset low
Press Enter to reset min
display
Rst HL
Reset
high & low
Press Enter to reset max
& min displays
Rst t
Reset total
Press Enter to reset total
Rst tr
Reset tare
Reset tare (Used when
Total is no only)
Display Functions & Messages
Display
Parameter
Action/Setting
Description
Contrl
Control
Enter Control menu
Auto
Automatic
Press Enter to set relays
and analog output 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
Pass 2
Password 2
Set or enter Password 2
Pass 3
Password 3
Set or enter Password 3
Total
Total
password
Set or enter password for
manual reset
Gtotal
Grand total
password
Set or enter password for
manual reset
nonrst
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
-99999
Flashing
display
Overrange condition
Underrange condition
Page 36
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
36
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 main
menu.
• Press Menu, at any time, to exit and return to
Run Mode. Changes made to settings prior to
pressing Enter are not saved.
• Changes to the settings are saved to memory
only after pressing Enter/F3.
• The display moves to the next menu every time a
setting is accepted by pressing Enter/F3.
Setting Numeric Values
The numeric values are set using the Right and Up
arrow buttons. Press Right arrow to select next digit
and Up arrow to increment digit value. The digit being
changed is displayed brighter than the rest.
Press and hold Up 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.
Setting Up the Rate/Totalizer Meter (setup)
The Setup menu is used to select:
1. Input signal the meter will accept and enable
totalizer features
2. Select the display units/tags
3. Select the decimal point position
4. Meter programming & 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.
Note: When Total is set to no, the meter now functions as a
Process Meter. Please refer to the PD8-6000 manual for
instructions on setting up the meter parameters.
Page 37
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
37
Setting the Input Signal (Input)
Enter the Input menu to set up the meter to display
current (nmA) or voltage (Volt) inputs.
The current input is capable of accepting any signal
from 0 to 20 mA. Select current input to accept
0-20 mA or 4-20 mA signals.
The voltage input is capable of accepting any signal
from -10 to +10 VDC. Select voltage input to accept
0-5, 1-5, 0-10, or 10 VDC signals.
Setting the Totalizer Features (total)
To simply not display the total, select alternative
display parameters in the display (dsplay) menu.
Enable or disable the totalizer features by selecting
“Yes” or “no” after the input type has been set up. If
the totalizer features are disabled, all the totalizer
features and functions are hidden from the menus.
Level and process meter features and functions are
added to the menus.
If disabling the total parameter by selecting no,
please refer to the PD8-6000 manual for instructions
on setting up the meter parameters.
Notes:
1. The totalizer continues working in the background.
2. When selecting "no" for Total, the meter now functions as
a PD8-6000 Process Meter. We strongly suggest that you
download and use the PD8-6000 instruction manual while
in this mode of operation.
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 the secondary
display parameter.
See the Setting the Display Parameter & Intensity
(dsplay) flow chart on page 39 to access the display
menu to show the unit or tag on the secondary display.
The engineering units or custom legends can be set
using the following 7-segment character set:
Display
Character
Display
Character
0
0
k K 1
1
l L 2
2
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.
Page 38
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
38
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 one place to the left.
Programming the Rate/Totalizer (prog)
The meter may either be scaled (SCALE) without
applying an input or calibrated (Cal) by applying an
input. The meter comes factory calibrated to NIST
standards, so for initial setup, it is recommended to
use the (SCALE) function.
The Program menu contains the following menus:
1. Scale without a signal source
2. Calibrate with a calibrated signal source
3. Total time base & conversion factor
4. Grand total time base & conversion factor
5. Total reset mode for total & grand total
Process inputs may be scaled or calibrated to any
display within the range of the meter.
The process input may be calibrated or scaled to any
display value within the range of the meter.
Note: The Scale and Calibrate functions are exclusive of
each other. The meter uses the last function programmed.
Only one of these methods can be employed at a time. The
Scale and Calibrate functions can use up to 32 points
(default is 2). The number of points should be set in the
Advanced menu prior to scaling and calibration of the
meter. See Multi-Point Linearization (Linear) menu on page
53 for details.
Additional parameters, not needed for most
applications, are programmed in the Advanced Features
menu; see Advanced Features Menu on page 51.
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
53 for details.
Input Calibration Method (InCAL)
There are two methods of calibrating (or scaling) the
display to show the correct engineering units.
• Use the Scale menu to enter the scaling without a
signal source.
• Use the Calibrate menu to apply a signal from a
signal source.
Note: The Scale and Calibrate functions are exclusive of
each other. The meter uses the last function programmed.
Only one of these methods can be employed at a time. The
Scale and Calibrate functions can use up to 32 points
(default is 2). The number of points should be set in the
Advanced menu prior to scaling and calibration of the meter.
See Multi-Point Linearization (Linear) on page 53 for
details.
Scaling the Meter (SCALE)
The process inputs (4-20 mA and 10 VDC) can be
scaled to display the process variable in engineering
units.
A signal source is not needed to scale the meter;
simply program the inputs and corresponding display
values.
• Reverse Scaling
The meter can be scaled so that 4 mA represents
the high end of the process value range being
measured by the transmitter and 20 mA
represents the low end of the process value range.
Page 39
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
39
Error Message (Error)
An error message indicates that the calibration or
scaling process was not successful.
After the error message is displayed, the meter
reverts to the input prior to the failure during
calibration or scaling and to input 1 during internal
calibration, allowing the appropriate input signal to be
applied or programmed.
The error message might be caused by any of the
following conditions:
1. Input signal is not connected to the proper
terminals, or it is connected backwards*.
2. Wrong signal selection in Setup menu*.
3. Minimum input span requirements not
maintained.
4. Input 1 signal inadvertently applied to calibrate
input 2*.
*Not relevant when scaling the meter.
For instructions on how to program numeric values
see Setting Numeric Values on page 36.
Minimum Input Span
The minimum input span is the minimum difference
between input 1 and input 2 signals required to
complete the calibration or scaling of the meter.
Input range
Input 1 & input 2 span
4-20 mA
0.15 mA
10 VDC
0.10 VDC
Calibrating the Meter with External Source (Cal)
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.
Note: Inputs for the above example are:
Input 1: 4.00 mA; Display 1: 0.0 Gallons
Input 2: 20.00 mA; Display 2: 15000.0 Gallons
Warm up the meter for at least 15 minutes before
performing calibration to ensure specified
accuracy.
Time Base, Total Conversion Factor & Total Reset
The time base, total conversion factor, and total reset
menus are located in the Program menu.
The total and grand total have their own independent
settings. This means that one can be displaying the
value in gallons while the other displays in million
gallons, liters, m3, etc.
Time Base
The time base is the amount of time over which the
rate parameter should accrue. For example, if the rate
was ten and the time base was in minutes, then the
total would increase by ten every one minute.
Total & Grand Total Conversion Factor
The total & grand total conversion factor is the
amount by which the rate is multiplied before it is
added to the total or grand total. For Example, if the
rate was 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, 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 50
for details.
Page 40
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
40
Setting the Display Parameter & Intensity (dsplay)
The main display (Line 1) can be programmed to
display:
1. Rate value
2. Total or grand total
3. Toggle rate/total
4. Toggle rate/G-total
5. Relay set points
6. Toggle rate and units
7. Toggle total and units
8. Toggle grand total and units
9. Max, min, or max & min values
10. Modbus input
The secondary display (Line 2) can be programmed
to display:
1. Engineering units or custom legends
for the main display
2. Rate value
3. Total or grand total
4. Toggle rate/total
5. Toggle rate/G-total
6. Relay set points
7. Toggle rate and units
8. Toggle total and units
9. Toggle grand total and units
10. Max, min, or max & min values
11. Modbus input
12. Off (no display)
Selecting engineering units or custom legends as the
secondary display (d unit) will display the unit or tag
selected for the rate, total, or grand total displayed on
the main display.
For example, if the main display is set to total,
selecting d unit to display on the secondary display
will have the total appear on the main display, and the
total unit appear on the secondary display.
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
The main display can be programmed to display flow
rate, total, or grand total, and the secondary display
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 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.
Page 41
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
41
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 process variable
2. Relay action
a. Automatic reset only (non-latching)
b. Automatic + manual reset at any time
(non-latching)
c. Latching (manual reset only)
d. Latching with Clear (manual reset only
after alarm condition has cleared)
e. Pump alternation control (automatic
reset only)
f. Sampling (the relay is activated for a
user-specified time)
g. Off (relay state controlled by Interlock
feature)
3. Set and reset points
4. Fail-safe operation
a. On (enabled)
b. Off (disabled)
5. Time delay
a. On delay (0-999.9 seconds)
b. Off delay (0-999.9 seconds)
6. Relay action for loss (break) of 4-20 mA input
(ignore, on, off)
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 process variable
Setting the Relay Action
Operation of the relays is programmed in the Action
menu. The relays may be set up for any of the
following modes of operation:
1. Automatic reset (non-latching)
2. Automatic + manual reset at any time
(non-latching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after
alarm condition has cleared)
5. Pump alternation control (automatic reset only)
6. Sampling (the relay is activated for a 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.
Page 42
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
42
Programming Set and Reset Points
High alarm indication: program set point above reset
point.
Low alarm indication: program set point below reset
point.
The deadband is determined by the difference
between set and reset points. Minimum deadband is
one display count. If the set and reset points are
programmed with the same value, the relay will reset
one count below the set point.
Note: Changes are not saved until the reset point has been
accepted.
Setting Fail-Safe Operation
In fail-safe mode of operation, the relay coil is
energized when the process variable is within safe
limits and the relay coil is de-energized when the alarm
condition exists. The fail-safe operation is set
independently for each relay. Select on to enable or
select off to disable fail-safe operation.
Programming Time Delay
The On and Off time delays may be programmed for
each relay between 0 and 999.9 seconds. The relays
will transfer only after the condition has been
maintained for the corresponding time delay.
The On time delay is associated with the set point.
The Off time delay is associated with the reset point.
Relay Action for Loss of 4-20 mA Input (Loop Break)
A loop break condition is triggered when the 4-20 mA
input signal drops below 0.005 mA. Each relay may
be programmed to go to one of the following
conditions when the meter detects the loss of the
input signal (i.e. < 0.005 mA):
1. Turn On (Go to alarm condition)
2. Turn Off (Go to non-alarm condition)
3. Ignore (Process as a low signal condition)
The following graph shows the loop break relay
operation for a high alarm relay.
Page 43
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
43
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.
Page 44
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
44
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
Page 45
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
45
Relay Operation Details
Overview
The four-relays option for the meters expands its
usefulness beyond simple indication to provide users
with alarm and control functions. Typical applications
include high and low temperature, level, pressure or
flow alarms, control applications such as simple on/off
pump control, pump alternation control for up to 4
pumps, 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. Pump Alternation Control for up to 4 Pumps
Relays Auto Initialization
When power is applied to the meter, the front panel
LEDs and alarm relays will reflect the state of the
input to the meter. The following table indicates how
the alarm LEDs and relays will react on power-up
based on the set and reset points:
Fail-Safe Operation
The following table indicates how the relays behave
based on the fail-safe selection for each relay:
Fail-Safe
Selection
Non-Alarm State
Alarm State
Power
Failure
NO
NC
NO
NC
Off
Open
Closed
Closed
Open
Relays
go to
nonalarm
state
On
Closed
Open
Open
Closed
Relays
go to
alarm
state
Note: NO = Normally Open, NC = Normally Closed. This
refers to the condition of the relay contacts when the power
to the meter is off.
Front Panel LEDs
The alarm status LEDs on the front panel are
available on all meters, even those without relays
installed, and provide status indication for the
following:
LED
Status
1
Alarm 1
2
Alarm 2
3
Alarm 3
4
Alarm 4
The meter is supplied with four alarm points that
include front panel LEDs to indicate alarm conditions.
This standard feature is particularly useful for alarm
applications that require visual-only indication. The
LEDs are controlled by the set and reset points
programmed by the user. When the display reaches a
set point for a high or low alarm, the corresponding
alarm LED will turn on. When the display returns to
the reset point the LED will go off. The front panel
LEDs respond differently for latching and non-latching
relays.
For non-latching relays, the LED is always off during
normal condition and always on during alarm
condition, regardless of the state of the relay
(e.g. Relay acknowledged after alarm condition).
For latching relays, the alarm LEDs reflect the status
of the relays, regardless of the alarm condition. The
following tables illustrate how the alarm LEDs function
in relation to the relays and the acknowledge button
(Default: F3 key assigned to ACK).
Latching and Non-Latching Relay Operation
The relays can be set up for latching (manual reset)
or non-latching (automatic reset) operation.
The On and Off terminology does not refer to the
status of the relay’s coil, which depends on the
fail-safe mode selected.
• In latching relay mode, if Fail-Safe is off, latched
relays will reset (unlatch) when power is cycled.
Alarm #
HI or LO
Alarm
Set
Point
Reset
Point
Power-
Up
Reading
Relay &
LED
1
HI
1000
500
499
Off
2
LO
700
900
499
On
3
LO
250
400
499
Off 4 HI
450
200
499
On
Relay terminology for following tables
Terminology
Relay Condition
On
Alarm (Tripped)
Off
Normal (Reset)
Ack
Acknowledged
Page 46
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
46
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 with Clear (LatcH)
In this application, the meter is set up for manual
reset at any time. Acknowledging the alarm even if
the alarm condition is still present resets the relay and
turns off the LED.
Latching Relay (Lt-Clr)
In this application, the meter is set up for manual reset
only after the signal passes the reset point (alarm
condition has cleared). Acknowledging the alarm while it
is still present has no effect on either the LED or the
relay. When the alarm is acknowledged after it returns to
the normal state, the LED and the relay go off. Notice
that the LED remains on, even after the meter returns to
the normal condition. This is because, for latching relays,
the alarm LED reflects the status of the relay, regardless
of the alarm condition.
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
Page 47
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
47
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.
Pump Alternation Control Applications (Altern)
For pump control applications where two or more
similar pumps are used to control the level of a tank
or a well, it is desirable to have all the pumps operate
alternately. This prevents excessive wear and overheating
of one pump over the lack of use of the other pumps.
Up to 4 relays can be set up to alternate every time
an on/off pump cycle is completed. The set points and
reset points can be programmed, so that the first
pump on is the first pump off.
Application #1: Pump Alternation Using Relays 1 & 2
1. Relays 1 and 2 are set up for pump alternation.
2. Relays 3 and 4 are set up for low and high alarm
indication.
Set and Reset Point Programming
Relay
Set Point
Reset Point
Function
1
30.000
10.000
Controls
pump #1
2
35.000
5.000
Controls
pump #2
3
4.000
9.000
Controls
low alarm
4
40.000
29.000
Controls
high alarm
Pump Alternation Operation
1. Pump #1 turns on when level reaches 30.000,
when level drops below 10.000, pump #1 turns off.
2. The next time level reaches 30.000, pump #2
turns on, when level drops below 10.000, pump
#2 turns off.
3. If the level doesn’t reach 35.000, pump #1 and
pump #2 will be operating alternately.
4. If pump #1 cannot keep the level below 35.000,
pump #2 will turn on at 35.000, then as the level
drops to10.000, pump #1 turns off, pump #2 is
still running and shuts off below 5.000.
5. Notice that with the set and reset points of pump
#2 outside the range of pump #1, the first pump
on is the first pump to go off. This is true for up to
4 alternating pumps if setup accordingly.
6. Relay #3 will go into alarm if the level drops
below 4.000 and relay #4 will go into alarm if the
level exceeds 40.000.
Application #2: Pump Alternation Using Relays 3 & 4
1. Relays 1 and 2 are set up for low and high alarm
indication.
2. Relays 3 and 4 are set up for pump alternation.
Set and Reset Point Programming
Relay
Set
Point
Reset
Point
Function
1
495
750
Controls low alarm
2
7500
6900
Controls high alarm
3
7000
900
Controls backup
pump
4
6000
1000
Controls main pump
P- COMP+ V+ mA+
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
Page 48
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
48
Pump Alternation Visual Representation
The following graphics provide a visual representation
of a typical pump alternation application with high and
low alarm monitoring:
Relay #4 turns the main pump on at 6000 gallons and
turns it off at 1000 gallons.
With the Pump Alternation feature activated, the next
time the level reaches 6000 gallons, relay #3 transfers
and starts the backup pump.
If the backup pump is not able to keep up, and the
level reaches 7000 gallons, relay #4 transfers and
starts the main pump as well.
Relay #2 trips the High Level Alarm at 7500 gallons
and resets at 6900 gallons.
Relay #1 trips the Low Level Alarm at 495 gallons and
resets at 750 gallons.
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 +5 V
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.
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
Page 49
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
49
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 36, Analog Output Value for Loss of
4-20 mA Input (Loop Break) on page 55.
Reset Menu (reset)
The Reset menu is used to reset the totals and 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). If total is set to no, the tare
value used to zero the display may be reset by selecting
“reset tare” (rst tr).
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 analog
output for automatic operation.
Page 50
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
50
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 36.
Total Reset Password & NonResettable Total
The total and grand total can be password-protected
to prevent unauthorized total resets.
The grand total can be programmed as a
non-resettable total by entering the password
“050873”.
• 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.
Page 51
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
51
Advanced Features Menu
To simplify the setup process, functions not needed
for most applications are located in the Advanced
Features menu.
Press and hold the Menu button for three seconds to
access the advanced features of the meter.
Advanced Features Menu & Display Messages
The following table shows the functions and
messages of the Advanced Features menu in the
order they appear in the menu.
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
filter
Filter
Set noise filter value
bypASs
Bypass
Set filter bypass value
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, square root,
programmable exponent,
or round horizontal tank
function
Linear
Linear
Set meter for linear
function and select number
of linearization points
No PtS
Number of
points
Set meter for 2 to
32-point linearization
Square
Square root
Set meter for square root
extraction
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
Prog E
Programmable
exponent
Set meter for
programmable exponent
and enter exponent value
rht
Round
horizontal tank
Set meter for round
horizontal tank volume
calculation
Inch
Dimension
(cm)
Calculate volume in
gallons or meters
dianmr
Diameter
Enter the tank’s diameter
in inches
Length
Length
Enter the tank’s length in
inches
CutofF
Cutoff
Set low-flow cutoff
Count
Count
Set total and grand total
count direction
Tot C
Total Count
Set total to count up or
down
Gtot C
Grand Total
Count
Set grand total to count up
or down
C Strt
Count Start
Set start for total or grand
total countdown
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
Break
Loop Break
Set relay condition if loop
break detected
Force
Force
Force analog output value
for loop break
Ignore
Ignore
Ignore loop break condition
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)
Page 52
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
52
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
dI I
Digital input 1
Assign digital input 1-4
dO 1
Digital output 1
Assign digital output 1-4
ICal
Internal source
calibration
Enter internal source
calibration (used for
scaling the meter without a
signal source
C CAL
Current
calibration
Calibrating 4-20 mA
current input (internal
reference source used for
scaling the input)
C lo
Current low
Calibrate low current input
(e.g. 4 mA)
C Hi
Current high
Calibrate high current input
(e.g. 20 mA)
V CAL
Voltage
calibration
Calibrating voltage input
V Lo
Voltage low
Calibrate low voltage input
(e.g. 0 V)
V Hi
Voltage high
Calibrate high voltage input
(e.g. 10 V)
Diag
Diagnostics
Display parameter settings
LED t
LED test
Test all LEDs
(press menu to exit test)
Info
Information
Display software number
and version
Erase
Erase
Erase MeterView Pro
software stored in meter’s
memory
Noise Filter (filter)
The noise filter is available for unusually noisy signals
that cause an unstable process variable display. The
noise filter averages the input signal over a certain
period. The filter level determines the length of time
over which the signal is averaged. The filter level can
be set between 2 and 199. The higher the filter level,
the longer the averaging time and so the longer it
takes the display to settle to its final value. Setting the
filter level to zero disables the filter function.
Noise Filter Bypass (bypass)
The noise filter bypass changes the behavior of the
meter so that small variations in the signal are filtered
out but large abrupt changes in the input signal are
displayed immediately. The bypass value determines
the minimum amount of signal change to be displayed
immediately. All signal changes smaller than the
bypass value are filtered or averaged by the meter.
The noise filter bypass may be set between 0.1 and
99.9% of full scale.
Rounding Feature (round)
The rounding feature is used to give the user a
steadier display with fluctuating signals. Rounding is
used in addition to the filter function.
Rounding causes the display to round to the nearest
value according to the rounding selected. See
examples below:
Rounding
Selection
Actual
Value
Display
Value
Actual
Value
Display
Value
1
12.022
12.022
12.023
12.023
5
12.022
12.020
12.023
12.025
10
12.024
12.020
12.025
12.030
Modbus RTU Serial Communications (serial)
The meter is equipped with serial communications
capability as a standard feature using Modbus RTU
Serial Communication Protocol.
The meter may be connected to a PC for initial
configuration via the on-board USB connection. For
ongoing digital communications with a computer or
other data terminal equipment, use the RS-485
connection with the appropriate serial converter; see
Ordering Information on page 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.
Page 53
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
53
Select Menu (SElEct)
The Select menu is used to select the input signal
conditioner applied to the input (linear, square root,
programmable exponent, or round horizontal tank),
low-flow cutoff, and analog output programming. The
multi-point linearization is part of the linear function
selection.
Input Signal Conditioning (Functn)
The Function menu is used to select the input signal
conditioner applied to the input: linear, square root,
programmable exponent, or round horizontal tank
volume calculation. 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.
Square Root Linearization (Square)
The square root function can be used to linearize the
signal from a differential pressure transmitter and
display flow rate in engineering units.
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 such as those from level
transmitters used to measure volume in odd-shaped
tanks or to convert level to flow using weirs and
flumes with complex exponent.
32-Point Linearization
The most common way to linearize a non-linear signal
is to break it up into smaller ranges that are more
linear than the overall range. The ProtEX-MAX is
available with up to 32 points of linearization. The
linearization data can be imported from an Excel
spreadsheet or can be exported from MeterView Pro
to an Excel spreadsheet. The following screen shot
from MeterView Pro shows the PV with 9 points of
linearization:
Note: Scale values can also be imported from an
Excel spreadsheet.
Page 54
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
54
Programmable Exponent
Linearization (Prog E)
The programmable exponent can be used to linearize
the signal from level transmitters in open-channel flow
applications using weirs and flumes.
Application: Open Channel Flow
The PD8-6200, in combination with an ultrasonic level
transmitter, makes for an economical way to measure
and display open channel flow rate and total in most
weirs and flumes. A guide such as the ISCO Open
Channel Flow Measurement Handbook can provide
the user with all the information needed: the exponent
used in the flow equation for the desired flow units
and the flow rate for any given head height. For
example, to display the open channel flow rate from a
3" Parshall flume, the ISCO handbook advises the
exponent is 1.547 and at the maximum head height of
3.0 feet, the flow rate is 3.508 MGD.
3" Parshall Flume Discharge Table with Head in Feet
Formula: CFS = 0.9920 H
1.547
GPM = 445.2 H
1.547
MGD = 0.6411 H
1.547
Where: H = head in feet
Table 13-3
Head (Feet)
CFS
GPM
MGD
3.00
5.428
2436
3.508
ISCO Open Channel Flow Measurement Handbook, 3rd edition
With this information, the PD8-6200 should be
programmed in the following fashion. This setup
assumes the level transmitter is programmed to
output 20 mA at the maximum head height of 1.10
feet; but any mA value at a head height with a known
flow rate may be used.
Function
Desire
Programming
Open Channel
Flow
3" Parshall flume
Set Programmable Exponent to
1.547
Flow Rate
Millions of
Gallons per Day
(MGD)
Set 4 mA = 0
20 mA = 3.508
Time base = Day
Total
Millions of
Gallons
Set Totalizer Conversion Factor = 1
(password protect “total” to avoid
accidental reset)
Non-Resettable
Grand Total
Program meter
so grand total can
never be reset
Set non-resettable grand total
password
Display
Display Flow
Rate, Total, and
Grand Total
Set main display for Grand Total
and secondary display to toggle
between rate and total.
Round Horizontal Tank Linearization (rHt)
This function automatically calculates the volume in a
round horizontal tank with flat ends. This function is
only used when Total is set to no.
Set the display for the desired decimal point and
engineering units before entering the round horizontal
tank function. Select units, inches or cm for the tank
dimension. Enter the diameter and the length in
inches and the results are given in US gallons. Enter
the diameter and length in cm and the results are
calculated automatically in liters.
The meter can be scaled to display the volume in any
engineering unit.
Note: After Scale is displayed continue pressing the
Enter button until the meter completes the
scaling of the input and display values.
Changing the Volume from Gallons to Liters
In the above graphic, entering the 48" for the diameter
and 120" for the length of the round horizontal tank,
the meter automatically calculates that the volume of
the tank is 940.02 gallons.
1. Convert gallons to liters
1 US gallon = 3.7854 L
940.02 gal = 3558.4 L
2. Go to the Setup menu and change the decimal
point to 1 decimal.
3. Go to the Program – Scale menu and press Enter
until dis 2 is shown on the main display.
4. Press Enter and change the display 2 value to
3558.4.
5. The meter is now displaying the volume in liters.
Note: The display can be scaled to display the volume in
any engineering units.
Another way to display the volume in liters is to enter
the dimensions in cm. The meter automatically
calculates the volume in liters.
Page 55
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
55
Low-Flow Cutoff (CutofF)
The low-flow cutoff feature allows the meter to be
programmed so that the often-unsteady output from a
differential pressure transmitter, at low flow rates,
always displays zero on the meter.
The cutoff value may be programmed from 0.1 to
999999. The meter will display zero below the cutoff
value. Programming the cutoff value to zero disables
the cutoff feature. The cutoff can be disabled to
display negative values.
Totalizer Count Up/Down (Count)
The totalizer count up/down menu may be used to
program the total and grand total to either count up
from 0 when reset or count down from a programmed
value when reset. Total and grand total may have
their countdown numbers programmed individually
from 0 to 999999.
Analog Output Programming (AoutPr)
The Analog Output Programming menu is used to
program the behavior of the 4-20 mA 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. Break: Analog output value when loop break is
detected
5. Max: Maximum analog output value allowed
regardless of input
6. Min: Minimum analog output value allowed
regardless of input
7. Calibrate: Calibrate the internal 4-20 mA source
reference used to scale the 4-20 mA output
Analog Output Source
The source for generating the 4-20 mA output may be
assigned to the rate/process variable, total, grand
total, maximum or minimum value reached by the
rate/process, or one of the set points, or the Modbus
PV input.
Analog Output Value for Loss of 4-20 mA Input (Loop Break)
The AoutPr - Break menu is used to force the analog
output to go to a user-specified mA value if a break
condition is detected in the 4-20 mA input loop.
Selecting Ignore causes the mA output to go to the
minimum value.
Analog Output Calibration
To perform the analog output calibration, it’s
recommended to use a milliamp meter with a
resolution of at least 0.1 µA to measure the output
current. The values saved internally during this
procedure are used for scaling the 4-20 mA output in
the Setup menu.
Analog Output Calibration Procedure
1. Wire the PD8-6200 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 19. 4-20 mA Output
Connections on page 31 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 PD8-6200 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 PD8-6200 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.
Page 56
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
56
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
max & min, hold relay states, etc.). This allows the
meter to be greatly customized for use in specialized
applications.
The four digital outputs can be assigned to a number
of actions and functions executed by the meter
(i.e., alarms, relay acknowledgement, reset max, min,
or max & min, tare, and reset tare). The digital outputs
can be used to trigger external alarms or lights to
indicate these specific events.
Function Keys & Digital I/O Available Settings
Refer to the following table for descriptions of each
available function key or digital I/O setting.
Function Keys & Digital I/O Available Settings
Display
Description
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 48 for details.
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
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)
Page 57
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
57
Internal Source Calibration (ICAL)
The meter is factory calibrated prior to shipment
for milliamps and volts with calibration equipment
that is certified to NIST standards.
The use of calibrated signal sources is necessary to
calibrate the internal source of the meter. The
meter’s internal source is what allows the user to
scale the meter without applying a signal.
Check calibration of the meter at least every
12 months. Each input must be recalibrated
separately.
Notes:
1. If meter is in operation and it is intended to accept
only one input type (e.g. 4-20 mA), recalibration of
other input is not necessary.
2. Allow the meter to warm up for at least 15 minutes
before performing the internal source calibration
procedure.
The Internal calibration menu is part of the Advanced
Features menu.
1. Press and hold the Menu button for three
seconds to access the advanced features of the
meter.
2. Press the Up arrow button to scroll to the Internal
calibration menu (ICAL) and press Enter.
3. The meter displays either current calibration
(C CAL) or voltage calibration (V CAL), according
to the input setup. Press Enter to start the
calibration process.
Example of Internal Calibration for current
input:
4. The meter displays low input current message
(C lo). Apply the low input signal and press
Enter. The display flashes for a moment while the
meter is accepting the low input signal.
5. After the display stops flashing, a number is
displayed with the leftmost digit brighter than the
rest. The bright digit is the active digit that can be
changed by pressing the Up arrow button. Press
the Right arrow button to move to the next digit.
6. Set the display value to correspond to the input
signal being calibrated, typically
4.000 mA.
7. The display moves to the high input calibration
(C Hi). Apply the high input signal and press
Enter.
8. Set the display for the high input calibration, in
the same way as it was set for the low input
calibration, typically 20.000 mA.
The graphic shows the calibration of the current input.
The voltage input is calibrated in a similar way.
Tips:
• Low and high input signals can be any valid
values within the range of the meter.
• Observe minimum input span requirements
between input 1 and input 2.
• Low input should be less than high input signal.
However, the low display can be higher than the
high display (i.e. 4-20 mA = 100.0 to 0.0).
Error Message (Error)
An error message indicates that the calibration or
scaling process was not successful.
After the error message is displayed, the meter
reverts to the input prior to the failure during
calibration or scaling and to input 1 during internal
calibration, allowing the appropriate input signal to be
applied or programmed.
The error message might be caused by any of the
following conditions:
1. Input signal is not connected to the proper
terminals, or it is connected backwards*.
2. Wrong signal selection in Setup menu*.
3. Minimum input span requirements not
maintained.
4. Input 1 signal inadvertently applied to calibrate
input 2*.
*Not relevant when scaling the meter.
Minimum Input Span
The minimum input span is the minimum difference
between input 1 and input 2 signals required to
complete the calibration or scaling of the meter.
Input range
Input 1 & input 2 span
4-20 mA
0.15 mA
10 VDC
0.10 VDC
Page 58
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
58
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 56.
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:
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 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.
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
Page 59
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
59
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 56 for details.
See the table under Button Operation on page 58,
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 31 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 56 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 PD8-6200 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
PD8-6200 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.
Page 60
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
60
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by
the process can be displayed either continuously or
momentary:
1. Display briefly by assigning to the F1-F3 function
keys or to the digital inputs in the User menu.
2. Display continuously by assigning either display
to max/min through the Display menu.
Any of the F1-F3 function keys (buttons) and the
digital inputs can be programmed to reset the max &
min readings. The meters are set at the factory to
display the max reading by pressing the Up arrow/F2
button and to use the Right arrow/F1 button to access
the Reset menu.
To display max reading using function key with
factory defaults:
1. Press Up arrow/F2 button to display maximum
reading since the last reset/power-up.
2. To reset max/min press Right arrow/F1 button to
access the Reset menu. The max & min displays
are reset to actual values.
3. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (d Hi), Min (d Lo), or
toggle between Max and Min (d HL) every 10
seconds.
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 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.
Page 61
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
61
Troubleshooting
Due to the many features and functions of the meter,
it’s possible that the setup of the meter does not
agree with what an operator expects to see.
If the meter is not working as expected, refer to the
Diagnostics menu and recommendations below.
Diagnostics Menu (diag)
The Diagnostics menu is located in the Advanced
Features menu, to access Diagnostics menu see
Advanced Features Menu 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 51.
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.
Page 62
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
62
Factory Defaults & User Settings
The following table shows the factory setting for
most parameters.
Parameter
Display
Default Setting
Input type
Input
4-20 mA
Total
total
Yes
Units
units
Rate / total / gr. total
mA / mA / mA
Filter
filter
70
Bypass
bypass
0.2
Function
Functn
Linear
Number of points
No Pts
2
Programming
prog
Scale
Input 1
InP 1
4.000 mA
Display 1
Dis 1
4.000
Input 2
InP 2
20.000 mA
Display 2
Dis 2
20.000
Decimal point
ddd.ddd
3 places
Cutoff value
CutofF
0.0 (disabled)
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
Total count
up/down
Tot C
Up
Grand tot count
Gtot C
Up
Relay 1
assignment
Asign1
Total
Relay 2
assignment
Asign2
Total
Relay 3
assignment
Asign3
Rate
Relay 4
assignment
Asign4
Rate
Parameter
Display
Default Setting
Relay 1 action
Act 1
Automatic
Relay 1 set point
Set 1
1.000
Relay 1 reset point
RSt 1
0.000
Relay 2 action
Act 2
Automatic
Relay 2 set point
Set 2
2.000
Relay 2 reset point
RSt 2
0.000
Relay 3 action
Act 3
Automatic
Relay 3 set point
Set 3
3.000
Relay 3 reset point
RSt 3
2.500
Relay 4 action
Act 4
Automatic
Relay 4 set point
Set 4
4.000
Relay 4 reset point
RSt 4
3.500
Fail-safe relay 1
Fls 1
Off
Fail-safe relay 2
Fls 2
Off
Fail-safe relay 3
Fls 3
Off
Fail-safe relay 4
Fls 4
Off
Display 1 analog
out
Dis 1
4.000
Output 1 value
Out 1
4.000 mA
Display 2 analog
out
Dis 2
20.000
Output 2 value
Out 2
20.000 mA
Source analog
output
Source
Rate/process
Overrange output
O-rang
21.000 mA
Underrange output
u-rang
3.000 mA
Loop break output
break
1.000 mA
Maximum output
nmAx
23.000 mA
Minimum output
nmin
1.000 mA
F1 function key
F1
Reset max & min
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)
Page 63
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
63
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 reprogramming 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. Input selected in Setup menu
3. Minimum input span requirements
Meter displays
1. 999999
2. -99999
Check:
1. Input selected in Setup menu
2. Corresponding signal at Signal connector
Display is unstable
Check:
1. Input signal stability and value
2. Display scaling vs. input signal
3. Filter and bypass values (increase)
Display response is too slow
Check filter and bypass values
Display reading is not accurate
Check:
1. Input signal conditioner selected: Linear, square root, etc.
2. Scaling or calibration
Display does not respond to input
changes, reading a fixed number
Check 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 26
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
Page 64
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
64
Troubleshooting Tips
Symptom
Check/Action
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.
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 61. In addition, for best results, we recommend using the
free MeterView Pro software for all programming needs
Page 65
65
Page 66
PD8-6200 Explosion-Proof Analog Input Flow Rate/Totalizer
Instruction Manual
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
LIM8-6200_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
www.predig.com
Loading...