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PD8-6001 Explosion-Proof Feet & Inches Meter
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 Meter
• 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Field Selectable Inputs with ±0.03% Accuracy
• Feet & Inches Display Ideal for Level Applications
• 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
• 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
• Display Input in Two Different Scales Simultaneously - Great for Level Applications
• Multi-Pump Alternation Control
• Round Horizontal Tank Function; Just Enter Diameter & Length
• 8-Point Linearization for Non-Linear Volume Measurements
• Password Protection
• 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
• Four 3/4" NPT Threaded Conduit Openings (Two Plugs Installed)
• Pipe Mounting Kits
• Stainless Steel Tag Available
• 3-Year Warranty
MeterView Pro
USB Install
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
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Disclaimer
The information contained in this document is
subject to change without notice. Precision Digital
makes no representations or warranties with
respect to the contents hereof and specifically
disclaims any implied warranties of
merchantability or fitness for a particular purpose.
See Warranty Information and Terms &
Conditions on www.predig.com for complete
details.
• Read complete instructions prior to installation
and operation of the meter.
• Risk of electric shock or personal injury.
• This product is not recommended for life support
applications or applications where malfunctioning
could result in personal injury or property loss.
Anyone using this product for such applications
does so at his/her own risk. Precision Digital
Corporation shall not be held liable for damages
resulting from such improper use.
• Failure to follow installation guidelines could
result in death or serious injury. Make sure only
qualified personnel perform the installation.
• Never remove the meter cover in explosive
environments when the circuit is live.
• Cover must be fully engaged to meet
explosion-proof/dust-ignition-proof/flame-proof
requirements.
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Limited Warranty
Precision Digital Corporation warrants this
product against defects in material or
workmanship for the specified period under
“Specifications” from the date of shipment from
the factory. Precision Digital’s liability under this
limited warranty shall not exceed the purchase
value, repair, or replacement of the defective unit.
See Warranty Information and Terms &
Conditions on www.predig.com for complete
details.
Registered Trademarks
All trademarks mentioned in this document are
the property of their respective owners.
© 2022 Precision Digital Corporation.
All rights reserved.
FREE MeterView Pro
Programming Software
The meter can be powered from the USB connection. When
using the USB connection, DO NOT apply AC or DC power to
the meter.
The easiest and quickest way to program your
ProtEX-MAX meter is to use the FREE MeterView Pro
programming software. This software is loaded into
the meter and connects and installs directly to your
PC with a USB cable. We recommend that the first
thing you do after taking the meter out of the box is
connect the ProtEX-MAX to your PC with the provided
USB cable – do not use a different cable. DO NOT
apply AC or DC power to the meter while your PC is
connected to the meter as it will disrupt the USB
connection. You don’t even have to apply an input
signal.
MeterView Pro programming software is intuitive, and
most customers can get their meter programmed as
they like without even looking in the manual.
Watch MeterView Pro Software Video at
www.predig.com/meterviewpro
In addition to programming, the software may be used
for:
• Monitoring
• Datalogging using your PC
• Generating and saving programming files for
later use
Once your meter is programmed the way you want it,
you can wire it up for your application per the
instructions in this manual and install it. If you find that
you need to make adjustments to the programming
after the meter is installed, you can use the
programming buttons and the instructions in this
manual to do so.
• The meter should only be connected to a
computer while it is located in a safe area.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
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Table of Contents
Introduction ......................................................................................................... 7
Ordering Information .......................................................................................... 7
Key Features ....................................................................................................... 9
Specifications ................................................................................................... 17
General........................................................................................................... 17
Process Inputs .............................................................................................. 18
Relays ............................................................................................................ 18
USB Connection ............................................................................................ 18
Isolated 4-20 mA Transmitter Output .......................................................... 19
RS-485 Serial Communications ................................................................... 19
Modbus® RTU Serial Communications ....................................................... 19
Digital Input (F4) ............................................................................................ 19
Digital Inputs & Outputs ............................................................................... 19
MeterView Pro Software ............................................................................... 19
Compliance Information................................................................................... 20
Electromagnetic Compatibility .................................................................... 20
Product Ratings and Approvals .................................................................. 20
EU Declaration of Conformity .......................................................................... 21
Safety Information ............................................................................................ 21
Installation......................................................................................................... 21
Unpacking ...................................................................................................... 21
Mounting ........................................................................................................ 22
Installation Overview .................................................................................... 24
MeterView Pro Software ............................................................................... 24
Transmitter Supply Voltage Selection (P+, P-) ........................................... 25
Connections ................................................................................................ .. 25
Required & Factory Wired Connection ....................................................... 25
ProVu Electronics Module Layout .............................................................. 26
USB Connection ........................................................................................ 26
Power Connections .................................................................................... 27
Signal Connections .................................................................................... 27
Relay Connections ..................................................................................... 27
Switching Inductive Loads.......................................................................... 28
RS-485 Connections .................................................................................. 28
RS-485 Multi-Drop Connection .................................................................. 28
Digital I/O Connections .............................................................................. 29
F4 Digital Input Connections ...................................................................... 29
4-20 mA Output Connections ..................................................................... 29
Analog Output Power Supply ..................................................................... 29
Remote Programming ................................................................................ 30
Interlock Relay Feature .............................................................................. 30
Setup and Programming .................................................................................. 31
Overview ........................................................................................................ 31
LED Status Indicators ................................................................................... 31
Programming Buttons .................................................................................. 32
SafeTouch Buttons ....................................................................................... 32
Display Functions & Messages ................................................................... 33
Main Menu ..................................................................................................... 34
Setting Numeric Values ................................................................................ 35
Setting Up the Meter (setup) ........................................................................ 35
Setting the Input Signal (Input) ................................................................. 36
Setting the Input Units or Custom Tags (units) ........................................ 36
Setting the Decimal Point (dEc pt) ........................................................... 37
Programming the Meter (prog) .................................................................. 37
Setting the Display Parameter & Intensity (dsplay) .................................. 39
Display Intensity (d-Inty).......................................................................... 39
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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Setting the Relay Operation (relay) ............................................................ 40
Setting the Relay Action ............................................................................. 40
Programming Set and Reset Points ........................................................... 41
Setting Fail-Safe Operation ........................................................................ 41
Programming Time Delay .......................................................................... 41
Relay Action for Loss of 4-20 mA Input (Loop Break) ................................ 41
Relay and Alarm Operation Diagrams ......................................................... 41
High Alarm Operation (Set > Reset) ............................................................. 41
Low Alarm Operation (Set < Reset) ........................................................... 42
High Alarm with Fail-Safe Operation (Set > Reset) .................................... 42
Low Alarm with Fail-Safe Operation (Set < Reset)..................................... 42
Time Delay Operation ................................................................................ 42
Pump Alternation Control Operation .......................................................... 43
Relay Sampling Operation ......................................................................... 43
Relay Operation Details ................................................................................ 44
Overview .................................................................................................... 44
Relays Auto Initialization ............................................................................ 44
Fail-Safe Operation .................................................................................... 44
Front Panel LEDs ....................................................................................... 44
Latching and Non-Latching Relay Operation ............................................. 44
Non-Latching Relay (Auto) ........................................................................ 45
Non-Latching Relay with Manual Reset (A-nman) ...................................... 45
Latching Relay (LatcH) .............................................................................. 45
Latching Relay with Clear (Lt-Clr) ........................................................... 45
Acknowledging Relays ............................................................................... 46
Pump Alternation Control Applications (Altern) ....................................... 46
Setting Up the Interlock Relay (Force On) Feature .................................... 47
Scaling the 4-20 mA Analog Output (Aout) ................................................. 48
Reset Menu (reset) ...................................................................................... 48
Manual Control Menu (Contrl) .................................................................... 48
Setting Up the Password (pass) .................................................................. 49
Protecting or Locking the Meter ................................................................. 49
Making Changes to a Password Protected Meter ...................................... 49
Disabling Password Protection .................................................................. 49
Advanced Features Menu............................................................................. 50
Advanced Features Menu & Display Messages ......................................... 50
Noise Filter (filter) ................................................................................. 51
Noise Filter Bypass (bypass) ..................................................................... 51
Rounding Feature (round) ......................................................................... 51
Modbus® RTU Serial Communications (serial) ....................................... 52
Select Menu (SElect) ................................................................................ 52
Input Signal Conditioning (Functn) ............................................................ 52
Low-Height Cutoff (CutofF) ....................................................................... 54
Analog Output Programming (AoutPr) ...................................................... 54
Programmable Function Keys User Menu (user) ...................................... 54
Internal Source Calibration (ICAL) ............................................................. 55
Meter Operation ................................................................................................ 56
Button Operation .......................................................................................... 56
SafeTouch Buttons ....................................................................................... 57
Function Keys Operation ............................................................................. 57
Digital Inputs Operation ............................................................................... 57
Maximum/Minimum Readings ...................................................................... 57
Troubleshooting ............................................................................................... 58
Diagnostics Menu (diag) .............................................................................. 58
Testing the Display LEDs ........................................................................... 58
Determining Software Version ................................................................... 58
Reset Meter to Factory Defaults .................................................................. 58
Factory Defaults & User Settings ............................................................... 59
Troubleshooting Tips ................................................................................... 60
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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Table of Figures
Figure 1. Enclosure Dimensions – Front View ............................................... 22
Figure 2. Enclosure Dimensions – Side Cross Section View ....................... 22
Figure 3. Transmitter Supply Voltage Selection ............................................ 25
Figure 4. Integrated PROVU Required Connections ....................................... 25
Figure 5. ProVu Electronics Module Layout ................................................... 26
Figure 6. USB Connection ............................................................................... 26
Figure 7. Power Connections .......................................................................... 27
Figure 8. Transmitter Powered by Internal Supply ........................................ 27
Figure 9. Transmitter Powered by External Supply or Self-Powered ........... 27
Figure 10. Voltage Input Connections ............................................................ 27
Figure 11. Relay Connections ......................................................................... 27
Figure 12. AC and DC Loads Protection ......................................................... 28
Figure 13. Low Voltage DC Loads Protection ................................................ 28
Figure 14. RS-485 Connections ....................................................................... 28
Figure 15. Three-Wire RS-485 Connections ................................................... 28
Figure 16. Digital Input and Output Connections .......................................... 29
Figure 17. F4 Digital Input Connections ......................................................... 29
Figure 18. 4-20 mA Output Connections ........................................................ 29
Figure 19. Analog Output Supply Powering Other Devices .......................... 29
Figure 20. Interlock Connections .................................................................... 30
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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Introduction
The ProtEX-MAX PD8-6001 is an explosion-proof,
multi-purpose, easy-to-use digital process meter
featuring a bright, easy-to-read main display with
convenient feet and inches designations. It is ideal for
level applications requiring an easy-to-understand
display, as it shows feet, inches, and fractions of an
inch. Its superluminous LED digits make it easily
readable in any lighting condition, including direct
sunlight.
The PD8-6001 accepts current and voltage signals
(e.g. 4-20 mA, 0-10 V). Three of the front panel
buttons can be custom-programmed for a specific
operation. The analog input can be scaled to display
the process in two different scales. The main display
indicates level in feet and inches with printed feet and
inches designations, and the second display could be
used to indicate some other scale, such as the
volume in gallons or liters.
The ProtEX-MAX is available in two configurations:
display only and fully loaded. Both versions include a
24 VDC power supply to power the transmitter. A fully
loaded ProtEX-MAX PD8-6001-6H7 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 applications such as pump alternation
control. 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.
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
Ordering Information
85-265 VAC Models
Model
Standard
Features
Options
Installed
PD8-6001-6H0
5 Digital Inputs,
4 Digital Outputs,
RS-485
Communications
No options
PD8-6001-6H7
4 relays
4-20 mA output
12-24 VDC Models
Model
Standard
Features
Options
Installed
PD8-6001-7H0
5 Digital Inputs,
4 Digital Outputs,
RS-485
Communications
No options
PD8-6001-7H7
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
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
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Helpful Videos
There are several videos that will help you get a
better understating of the features and functionality of
the ProtEX-MAX products. Since the ProtEX-MAX
meters have the same general features and
functionality of the ProVu meters, appropriate videos
for the ProVu meter are also included.
ProtEX-MAX Products Overview
Learn about the complete line of ProtEX-MAX
products.
predig.com/videos/ProtEXMAX_Overview
MeterView Pro Programming Software
Learn how easy it is to program the ProVu (ProtEXMAX) 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 (ProtEXMAX’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
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
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Key Features
The Only Explosion-Proof Process Meter You Will Ever Need
Front, back and in between, the PD8-6001
ProtEX-MAX Explosion-proof process meter boasts
specifications, features and functionality that make it
the only hazardous area process meter you will ever
need. The front panel push-buttons can even be
operated in a hazardous area without removing the
cover by using the SafeTouch through-glass feature.
The primary function of this meter is to display level
from a 4-20 mA output transmitter in feet and inches
format rather than the more common decimal format.
The PD8-6001 has all the same features as our
PD6001 1/8 DIN process meter, but it is not just a
meter stuffed in an explosion-proof enclosure like
many of our competitors offer. The PD8-6001 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 PD8-6001 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, evident also in the above diagram.
The first thing you notice about the PD8-6001 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.
It is ideal for level applications requiring an
easy-to-understand display, as it shows feet, inches,
and fractions of an inch. The main display indicates
level in feet and inches with printed feet and inches
designations, and the second display could be used
to indicate some other scale, such as the volume in
gallons or liters. This makes the PD8-6001 ideal for
level and other applications where displaying a big
number is required.
Other key features include four relays and 4-20 mA
output option, advanced signal input conditioning like
automatic round horizontal tank linearization, function
keys, pump alternation capability, and Modbus® RTU
serial communications. Finally, all these features and
capabilities can easily be programmed without
removing the cover using SafeTouch buttons in a
hazardous area or with free MeterView Pro PC-based
software in a safe area.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
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Easy Programming Methods
The ProtEX-MAX can be programmed in a hazardous
area with the through-glass SafeTouch buttons
without removing the cover, in a safe area with the
front panel push buttons with the cover removed, or in
a safe area with free, PC-based MeterView Pro
software. MeterView Pro is resident on the
ProtEX-MAX and is accessed by a provided USB
cable, so it is by far the easiest way to program the
ProtEX-MAX. The 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 Level the Way You Want
The PD8-6001 is the perfect meter for customers who
prefer to see level measurements displayed in feet and
inches (12
FT11IN 7
/
16
) vs the more standard decimal format
(12.953 feet). And for customers that want to see the
level in feet and inches and also the actual volume in the
tank, the PD8-6001’s second display can be scaled to
display the input in gallons, liters, barrels, etc.
Rounding for Even Steadier Display
The rounding feature is used to give the user a
steadier feet and inches display with fluctuating
signals. Rounding is used in addition to the filter
function. Rounding is only applicable if the second
display is setup to display level unit tags (d l-u).
Rounding will round the second display to the nearest
decimal value according to the rounding selected. The
main display’s level reading will be adjusted to match
the rounded decimal value. See examples below:
Rounding
Selection
Actual
Value
Second Display
Value
Main Display
Value
1
12.093
12.093
12FT1IN 2/16
12.953
12.953
12FT11IN 7/16
5
12.093
12.095
12FT1IN 2/16
12.953
12.955
12FT11IN 7/16
10
12.093
12.090
12FT1IN 1/16
12.953
12.950
12FT11IN 6/16
50
12.093
12.100
12FT1IN 3/16
12.953
12.950
12FT11IN 6/16
Dual-Line Makes All the Difference
The main display can be programmed to indicate PV,
maximum (peak), minimum (valley), alternating
maximum/minimum, one of four alarm set points, or
Modbus® input. The second display can be configured
to display engineering units, set points, user defined
messages, or simply turned off.
The ProtEX-MAX's dual-line display makes all the
difference both when programming the instrument
and when using it in the field. When programming the
instrument, the dual-line display prompts for the
needed information and also helps you keep track of
where you are in the setup process. When using the
instrument, the dual-line display provides more
information such as displaying the input in two
different scales like height and volume for a level
application. We call this the Dual-Scale feature.
Feet and Inches Display
Common Decimal Display
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
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Programming Assistance
The ProtEX-MAX's dual-line display makes
programming the instrument much easier because the
second display prompts for the needed information
and also helps you keep track of where you are in the
setup process.
The ProtEX-MAX is prompting for the value for Input 2
and displaying the default value of 20.00 mA. The “2”
in 20.00 is brighter than the rest of the digits indicating
that it is the number that will be changed by the Up
arrow.
The ProtEX-MAX is now prompting for what the user
wants Display 2 to be; that is the value that
corresponds to 20 mA. In this case Display 2 is
currently set to 20FT 0IN 0/16.
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.
Dual-Scale Display Feature
The ProtEX-MAX PD8-6001 has a rather unique, and
very flexible dual-scale capability. This is of particular
value in level applications where a second scaled
display can represent the measured input in a
different form (i.e. gallons & height). Both displays are
independently scaled and are based on the 4-20 mA
input signal.
Feet & Gallons Feet & Meters
Feet & Percent Feet & Barrels
MeterView Pro can be used to program the
ProtEX-MAX to display the input in two
different scales:
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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Physical Features
The ProtEX-MAX is designed for ease-of-use in safe
and hazardous applications. The ProtEX-MAX is
housed in a rugged NEMA 4X explosion-proof
enclosure, can operate over a wide temperature
range, includes removable screw terminal connectors,
has worldwide approvals for use in hazardous areas,
and features through-glass buttons for easy meter
operation without the need to remove the cover.
All of these features are backed by a 3-year warranty.
Super-Bright LED Display
The ProtEX-MAX features a dual-line 6-digit display
with super-bright LEDs, our brightest ever. These
allow the display to be read in any lighting condition,
even in direct sunlight.
SafeTouch Through-Glass Buttons
The ProtEX-MAX is equipped with four sensors that
operate as through-glass buttons so that it can be
programmed and operated without removing the
cover (and exposing the electronics) in a hazardous
area. These buttons can be disabled for security by
selecting the DISABLE setting on the NO-CONTACT
BUTTONS switch located on the back of the
electronics module, inside the enclosure.
Rugged, Heavy Duty Enclosure
The ProtEX-MAX is housed in a rugged NEMA 4X, 7,
& 9, IP68 die-cast aluminum enclosure, designed to
withstand harsh environments in safe and hazardous
areas over a wide temperature range.
Wide Viewing Angle
Customers can’t always look at the display from
straight on, so the window and display module have
been optimized to provide a wide viewing angle of
approximately +/- 40°; nearly twice that of the
competition.
Built-In Mounting Flanges
The ProtEX-MAX is equipped with four slotted flanges
for wall mounting or NPS 1½" to 2½" or DN 40 to
65 mm pipe mounting.
Flexible Mounting & Wiring
The ProtEX-MAX features four ¾" NPT threaded
conduit openings so that wiring can be routed to the
most convenient conduit connection(s). Two ¾" NPT
metal conduit plugs with 12 mm hex key fitting come
installed.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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Rotatable Display
The ProtEX-MAX rotatable display, along with four
available conduit connections, provide for numerous
installation options. The display can be rotated in 90°
increments. Rotate it 90° for horizontal mounting.
Vertical Mounting Horizontal Mounting
Perfect & Secure Fit Every Time
The internal cast rails ensure the ProtEX-MAX
assembles together perfectly, quickly and securely;
and everything lines up for optimal viewing every
time. There are no standoffs to worry about breaking
or getting out of alignment. Two spring-loaded,
self-retaining, thumbscrews make the assembly a
snap, while pressing the display as close to the glass
as possible to improve wide angle viewing.
Stainless Steel Tags
PDA-SSTAG is a laser etched stainless steel tag
accessory for any of your Precision Digital meters.
The tag features custom text for equipment
identification, instruction, or whatever else is needed
in your facility. Each tag comes with a stainless steel
wire and lead seal for easy mounting wherever you
need it.
Removable Screw Terminals
Industrial applications require screw terminal
connections for easy field wiring and the ProtEX-MAX
goes one step further in convenience by making them
removable also.
USB Port for MeterView Pro
Hazardous Area Approvals
The ProtEX-MAX's approvals allow it to be used in
hazardous areas around the world. These include: FM
Approved as Explosion-Proof / Dust-Ignition-Proof /
Flame-Proof, CSA Certified as Explosion-Proof /
Dust-Ignition-Proof, and ATEX and IECEx Certified as
Flame-Proof.
Wide Operating Temperature Range
The ProtEX-MAX can operate from -40 to 60°C (-40
to 140°F) meaning it can be installed in a wide variety
of indoor and outdoor industrial applications. And over
this range, the ProtEX-MAX will drift no more than
0.005% of calibrated span/°C max from 0 to 65°C
ambient and 0.01% of calibrated span/°C max from
-40 to 0°C ambient.
USB cable conveniently
plugs into side of
ProtEX-MAX meter
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
14
Transmitter Power Supplies
Meter Powers the Transmitter
One of the most useful standard features of the
PD8-6001 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.
Input Signal Conditioning
To satisfy applications that require scaling in ways
other than the usual 2-point linear method, the
PD8-6001 is available with multi-point linearization
and round horizontal tank volume calculation
capabilities. These features are most appropriate for
the second display’s decimal format.
Round Horizontal Tank Linearization
This function automatically calculates the volume in a
round horizontal tank with flat ends and allows that
reading to be displayed on the meter’s second
display. The user can now display level in feet and
inches on the main display and volume on the second
display. This feature is only available on PV2 since
PV1 is the designated level indicator.
Using MV Pro for RHT Function
Round Horizontal Tank Function
User need only enter the diameter and length of the tank.
Multi-Point Linearization
Multi-point linearization capability is available for the
main and second displays, but it is most commonly
used on the second display to display volume of
non-linear tanks. This allows the user to display both
level in feet and inches and volume on one meter.
Up to eight calibration points may be entered for the
second display. These points may be entered with the
front panel buttons, or with MeterView Pro Software.
Using MV Pro for Multi-Point Linearization
Page 15
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
15
Exp-Proof Dual-Pump Alternation
The ProtEX-MAX can be used as an explosion-proof
pump controller when combined with a continuous
level transmitter. The most common pump control
application is shown below: controlling and alternating
two pumps and providing high and low-level alarms.
In addition, the ProtEX-MAX provides the 24 V to
power the transmitter.
Relay #4 turns the main pump on at 30FT and turns it
off at 10FT.
With the Pump Alternation feature activated, the next
time the level reaches 30FT, relay #3 transfers and
starts the backup pump.
If the backup pump is not able to keep up, and the
level reaches 40
FT
, relay #4 transfers and starts the
main pump as well.
Relay #2 trips the High Level Alarm at 45FT and resets
at 42FT.
Relay #1 trips the Low Level Alarm at 4FT10IN and
resets at 7FT6IN.
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 16
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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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
Feet & Inches
Range
-9FT11IN (15/16 or 7/8) to
99FT11IN (15/16 or 7/8)
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 31
for details.
Overrange
Display flashes 999999
Underrange
Display flashes -99999
Display
Assignment
Display Line 1:
PV1, max/min, max & min, set points, or
Modbus® input
Display Line 2:
PV2, percent of PV1, set points, PV1 level
in feet & unit/tag, max/min, max & min,
Modbus®, engineering units, or turned off
Programming
Methods
Four SafeTouch through-glass buttons
when cover is installed. Mechanical
buttons can be used with the cover
removed. Free PC-based USB MeterView
Pro programming software.
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,
actual value = 12.093,
Line 2 display = 12.090,
Line 1 display = 12FT1IN 1/16)
Password
Three programmable passwords restrict
modification of programmed settings.
Pass 1: Allows use of function keys and
digital inputs
Pass 2: Allows use of function keys, digital
inputs and editing set/reset points
Pass 3: Restricts all programming,
function keys, and digital inputs
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
Non-Volatile
Memory
All programmed settings are stored in
non-volatile memory for a minimum of ten
years if power is lost.
Fuse
Required external fuse: UL Recognized,
5 A max, slow blow; up to 6 meters may
share one 5 A fuse
Normal Mode
Rejection
Greater than 60 dB at 50/60 Hz
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 22 for
additional details.
Pipe Mounting:
Optional pipe mounting kit (PDA6848)
allows for pipe mounting. Sold separately.
See Pipe Mounting Instructions on page
23 for additional details.
Tightening
Torque
Power, signal, relays, mA out terminals:
5 lb-in (0.56 Nm)
Digital I/O and RS-485:
2.2 lb-in (0.25 Nm)
Overall
Dimensions
6.42" x 7.97" x 8.47" (W x H x D)
(163 mm x 202 mm x 215 mm)
Weight
16.0 lbs (7.26 kg)
Warranty
3 years parts & labor. See Warranty
Information and Terms & Conditions on
www.predig.com for complete details.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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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 rated @ 25 mA max
Accuracy
±0.03% of calibrated span ±1 count
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 or round horizontal tank volume
calculation
Multi-Point
Linearization
2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale Level
feature)
Round
Horizontal
Tank
Diameter & Length:
999.999 inch or cm calculates volume
in gallons or liters respectively
Low-Height
Cutoff
0FT1IN(0/16 or 0/8) to 99FT11IN(15/16 or 7/8)
(0FT0IN(0/16 or 0/8) disables cutoff function)
Decimal Point
Up to five decimal places or none:
(PV2 only) d.ddddd, d.dddd, d.ddd, d.dd, d.d,
or dddddd
Calibration
Range
Input Range
Minimum Span
Input 1 & 2
4-20 mA
0.15 mA
10 V
0.10 V
An error message will appear if the input 1
and input 2 signals are too close together
Input
Impedance
Voltage ranges: greater than 500 k
Current ranges: 50 - 100 (depending on
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.
Relays
Rating
4 SPDT (Form C) internal and rated 3 A
@ 30 VDC and 125/250 VAC resistive load;
1/14 HP (≈ 50 W) @ 125/250 VAC for
inductive loads
Noise
Suppression
Noise suppression is recommended for
each relay contact switching inductive
loads. See Switching Inductive Loads on
page 28 for details.
Deadband
0-100% of span, user programmable
High or Low
Alarm
User may program any alarm for high or
low trip point. Unused alarm LEDs and
relays may be disabled (turn off).
Relay
Operation
• Automatic (non-latching) and/or
manual reset
• Latching (requires manual
acknowledge) with or without clear
• Pump alternation control (2-4 relays)
• Sampling (based on set point and time)
• Off (disable unused relays and enable
Interlock feature)
• Manual on/off control mode
Relay Reset
(Acknowledge)
User selectable via front panel button, F4
digital input, external contact closure on
digital inputs, or through serial
communications
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.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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19
Isolated 4-20 mA Transmitter Output
Output
Source
Process variable (PV), max, min, set points
1-4, Modbus® input, or manual control
mode
Scaling
Range
1.000 to 23.000 mA for any display range
Calibration
Factory calibrated:
4.000 to 20.000 = 4-20 mA output
Analog Out
Programming
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and
break
Accuracy
± 0.1% of span ± 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%. May be
used to power the 4-20 mA output or other
devices.
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
RS-485 Serial Communications
Compatibility
EIA-485
Connectors
Removable screw terminal connector
Max Distance
3,937' (1,200 m) max
Status
Indication
Separate LEDs for Power (P), Transmit
(TX), and Receive (RX)
Modbus® RTU Serial Communications
Slave Id
1 – 247 (Meter address)
Baud Rate
300 – 19,200 bps
Transmit
Time Delay
Programmable between 0 and 199 ms
Data
8 bit (1 start bit, 1 or 2 stop bits)
Parity
Even, Odd, or None with 1 or 2 stop bits
Byte-To-Byte
Timeout
0.01 – 2.54 second
Turn Around
Delay
Less than 2 ms (fixed)
Note: Refer to the ProtEX-MAX Modbus® Register Tables
located at www.predig.com for details.
Digital Input (F4)
Function
Remote operation of front-panel buttons,
acknowledge/reset relays, reset max/min
values. See Function Keys & Digital I/O
Available Settings on page 54 for a
complete list of capabilities.
Contacts
3.3 VDC on contact. Connect normally
open contacts across F4 to COM
Logic Levels
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Digital Inputs & Outputs
Function
Terminals provided for remote operation of
all four programming / operation buttons.
Other uses include acknowledge/reset
relays and reset max/min values. See
Function Keys & Digital I/O Available
Settings on page 54 for a complete list of
capabilities.
Channels
4 digital inputs & 4 digital outputs
Digital Input
Logic High
3 to 5 VDC
Digital Input
Logic Low
0 to 1.25 VDC
Digital Output
Logic High
3.1 to 3.3 VDC
Digital Output
Logic Low
0 to 0.4 VDC
Source
Current
10 mA maximum output current
Sink Current
1.5 mA minimum input current
+5 V Terminal
To be used as pull-up for digital inputs only.
Connect normally open push buttons
across +5 V & DI 1-4.
• DO NOT use +5 V terminal to power external
devices.
MeterView Pro Software
Availability
Download directly from meter or from
www.predig.com/download_software
System
Requirements
Microsoft® Windows® XP/Vista/7/8/10
Communications
USB 2.0 (for programming only)
(Standard USB A to USB Type B)
RS-485 to USB converter
(programming, monitoring, and data
logging)
Configuration
Configure meters one at a time
Power
USB port provides power to the meter.
DO NOT apply AC or DC power to the
meter while the USB port is in use.
Page 20
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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20
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 & IP66
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 21
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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21
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 and/or
wrench.
Page 22
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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22
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 23
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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23
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 24
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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24
Installation Overview
We recommend the following sequence for getting the
meter into service:
1. DO NOT apply AC or DC power to the meter.
2. Connect the meter to the PC with the USB cable
provided. DO NOT use a different USB cable.
3. If MeterView Pro (MVPro) is already installed in
your computer, then the program will launch
automatically in most systems. If the program
does not start automatically, double-click on the
MVPro icon.
4. If MVPro is not installed, follow the instructions
provided below.
5. Use MVPro to configure the meter for your
application.
6. Disconnect the USB cable from the meter.
7. Apply power and signal and check operation of
the meter.
8. Install the meter and put into service.
9. Make any programming adjustments using the
programming buttons.
MeterView Pro Software
The easiest and quickest way to program your
ProtEX-MAX meter is to use the FREE MeterView Pro
programming software. This software is loaded into
the meter and connects and installs directly to your
PC with the USB cable provided. DO NOT use a
different USB cable. We recommend that the first
thing you do after taking the meter out of the box is
connect the ProtEX-MAX to your PC with the provided
USB cable. DO NOT apply AC or DC power to the
meter while your PC is connected to the meter as it
will disrupt the USB connection. It is not necessary to
apply an input signal.
MeterView Pro programming software is intuitive, and
most customers can get their meter programmed as
they like without even looking in the manual.
Watch Meterview Pro Software Video at
www.predig.com/meterviewpro
MeterView Pro Installation
1. Connect one end of the provided USB cable
to the meter and the other end to the
computer. The computer will automatically
install the driver software it needs to talk to
the meter. Follow the on-screen instructions
and allow sufficient time for the process to
complete. This can take a few minutes. If the
process is interrupted, then it could leave the
system in an unstable condition.
• Only one meter may be connected at a time.
Attaching multiple meters will cause a conflict
with the meter software.
• DO NOT apply AC or DC power to the meter
when using the USB connection.
• The meter should only be connected to a
computer while it is located in a safe area.
2. Once the driver is installed, an AutoPlay
dialog should appear for the drive
“MAINSTAL.” Click “Open folder to view
files.”
If the computer does not display an AutoPlay
dialog for the drive “MAINSTAL,” you should
open My Computer and double-click on the
drive labeled “MAINSTAL.”
3. Double-click on the file named “MAStart.”
The program will open a few windows and
install two programs on your computer.
Simply follow the on-screen instructions until
you see one of the dialogs below. If you
receive a “User Account Control” warning,
click “Yes.”
4. If there is an update available, click the
“Update” button to install the new version.
Otherwise, click “Configure” to begin
programming your meter.
Note: If you decide to update your MeterView Pro
software, once the installation has completed, you will be
asked if you want to update the setup files located on the
meter itself. This way, you will always have the most
current version on the meter for future installs.
• DO NOT unplug the meter while the new
installation files are being written to it. The meter
will display uwrite during the process and you
will receive an on-screen notification once the
process is complete.
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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25
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 wiring connectors.
2. Unscrew the back cover.
3. Slide out the back cover by 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
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26
ProVu Electronics Module Layout for PD8-6001-6H7 and PD8-6001-7H7*
* For models PD8-6001-6H0 and PD8-6001-7H0 the upper set of connectors (RELAYs & MA OUT) are not present
Figure 5. ProVu Electronics Module Layout
USB Connection
Figure 6. USB Connection
• DO NOT disconnect the RJ45 M LINK connector cable. Otherwise the instrument will not function properly.
• The meter should only be connected to a computer while it is located in a safe area.
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Power Connections
Power connections are made to a two-terminal
connector labeled POWER. The meter will operate
regardless of DC polarity connection. The + and symbols are only a suggested wiring convention.
There are separate models for low voltage and high
voltage power. See Ordering Information on page 7
for details.
Figure 7. Power Connections
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 (mA) Connections
The following figures show examples of current
connections.
There are no switches or jumpers to set up for current
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.
Voltage (V) Connections
The following figures show examples of voltage
connections.
There are no switches or jumpers to set up for voltage
inputs. Setup and programming is performed through
the programming buttons or MeterView Pro software.
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
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
C NONO NC NC C
RELAY4 RELAY3
4 36 5 2 1
C NONO NC NC C
RELAY2 RELAY1
4 36 5 2 1
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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 12. AC and DC Loads Protection
Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid
loads. Check to confirm proper operation.
3. Install the RC network at the meter's relay screw
terminals. An RC network may also be installed across
the load. Experiment for best results.
Use a diode with a reverse breakdown voltage two to three
times the circuit voltage and forward current at least as large
as the load current.
Figure 13. 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: METER LINK,
Transmit Data (TX), and Receive Data (RX) to show
when the meter is transmitting and receiving data
from other devices.
Figure 14. RS-485 Connections
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 Connections
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 15. Three-Wire RS-485 Connections
C
R
C
R
__ __
DI DI DO DO
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29
Digital I/O Connections
The ProtEX-MAX has a 10-position terminal block for
connecting digital inputs and outputs.
Figure 16. 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 for remote
operation of front-panel buttons, to acknowledge/reset
relays, or to reset max/min values. See Function Keys
& Digital I/O Available Settings on page 54 for a
complete list of capabilities.
Figure 17. 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 18. 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 19. Analog Output Supply Powering Other
Devices
1 2 3 4 5 6
+5 I1 I2 I3 I4 O1
7 8
O2 O3
9 10
O4 G
DI 1-4 DO 1-4
5 VDC GND
P- COMP+ 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
+-
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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.
Interlock Relay Feature
As the name implies, the interlock relay feature
reassigns one, or more, alarm/control relays for use
as interlock relay(s). Interlock contact(s) are wired to
digital input(s) and activate the interlock relay. This
feature is enabled by configuring the relay, and the
corresponding digital input(s), see Setting Up the
Interlock Relay (Force On) Feature on page 47.
In the example below, an Interlock Contact switch is
connected to a digital input, which will be used to
force on (energize) the Interlock Relay. The Interlock
Relay and the Control Relay are connected in series
with the load.
• When the Interlock Contact is closed (safe), the
Interlock Relay energizes, allowing power to flow
to the Control Relay; the corresponding front
panel LED is on.
• When the Interlock Contact is open, the
corresponding front panel LED flashes (locked
out), the Interlock Relay is de-energized,
preventing power from flowing to the Control
Relay and the load.
Figure 20. Interlock Connections
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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
T
Flashing
Meter in Tare mode
M
Flashing
Analog output in manual control mode
8
Steady
Eighths of an inch
16
Steady
Sixteenths of an inch
Symbol
Description
FT
Feet value
IN
Inches value
- -
Designation separators
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32
Programming Buttons
Button Symbol
Description
Press to enter or exit Programming Mode, view settings, or
exit max/min readings
Press to reset max/min readings or other parameter/function
assigned through the User menu
Press to display max/min readings or other
parameter/function assigned through the User menu
Press to acknowledge relays or other parameters/function
assigned through the User menu
• Press the Menu button to enter or exit the Programming Mode at any time.
• Press the Right arrow button to move to the next digit during digit or decimal point programming.
• Press or hold the Up arrow button to scroll through the menus, decimal point, or to increment the value of a digit.
• Press the Enter button to access a menu or to accept a setting.
• Press and hold the Menu button for three seconds to access the advanced features of the meter.
SafeTouch Buttons
The ProtEX-MAX is equipped with four sensors that
operate as through-glass buttons so that it can be
programmed and operated without removing the cover
(and exposing the electronics) in a hazardous area.
These buttons can be disabled for security by
selecting DISABLE on the switch labeled NO-CONTACT
BUTTONS located on the connector board.
To actuate a button, press one finger to the glass
directly over the marked button area. Then retract
finger more than three inches from the glass before
pressing the next button. When the cover is removed,
the four mechanical buttons located next to the
sensors are used. The sensors are disabled when a
mechanical button is pressed and will automatically
be re-enabled after 60 seconds of inactivity.
The SafeTouch Buttons are designed to filter normal
levels of ambient interference and to protect against
false triggering, however, it is recommended that the
SafeTouch Buttons be disabled (slide switch to
DISABLE) if there is an infrared interference source in
line-of-sight to the display.
The SafeTouch Buttons are configured by default to
duplicate the function of the front panel mechanical
pushbuttons associated with the integrated meter.
The symbols by each SafeTouch button correspond
to a mechanical button as shown in the above table.
SafeTouch Button Tips:
• To the extent possible, install the display facing
away from sunlight, windows, reflective objects
and any sources of infrared interference.
• Keep the glass window clean.
• Tighten the cover securely.
• Use a password to prevent tampering.
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33
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
d-SCAL
Dual-scale
Press Enter to select dualscale display for some level
applications (Select Yes or
No)
units
Units
Select the display
units/tags
Dec pt
Decimal
point
Set decimal point
PV 2
PV2
PV2 decimal point (Level)
prog
Program
Enter the Program menu
SCALE
Scale
Enter the Scale menu
SCALE 1
Scale 1
Enter the Scale menu for
PV1
SCAL 2
Scale 2
Enter the Scale menu for
PV2
Cal
Calibrate
Enter the Calibration menu
Inp 1
Input 1
Calibrate input 1 signal or
program input 1 value
Dis 1
Display 1
Program display 1 value
Inp 2
Input 2
Calibrate input 2 signal or
program input 2 value
(up to 32 points)
Dis 2
Display 2
Program display 2 value
(up to 32 points)
Error
Error
Error, calibration not
successful, check signal or
programmed value
dsplay
Display
Enter the Display menu
Line 1
Display
line 1
Press Enter to access
Line 1 display format and
parameter options
(default: PV)
Fornmt
Format
Format fractional inches to
either eighths (1/8) or
sixteenths (1/16)
Paranm
Parameter
Press Enter to assign the
Main display parameter
(default: PV)
Dset 1*
Display
set 1*
Display relay 1 (*through 4)
set point
D Hi
Display
high
Display high value
D lo
Display low
Display low value
Display Functions & Messages
Display
Parameter
Action/Setting
Description
D Hl
Display
hi/low
Alternate between high/low
value
nm bus
Display
Modbus®
Display Modbus® input
register
D pV
Display PV
Select to display PV
Line 2
Display
line 2
Press Enter to assign the
Line 2 display parameter
(default: engineering units)
D unit
Display unit
Display units on line 2
D pV2
Display
PV2
Select to display PV2
(dual-scale display)
D pCt
Display
PCT
Select to display percent of
PV1 (dual-scale display)
D l-u
Display
Level Units
Select to display PV1 level
in decimal units on display
line 2
D off
Display off
Turn off display line 2
d-Inty
Display
intensity
Set display intensity level
from 1 to 8
RELaY
Relay
Enter the Relay menu
RLY 1*
Relay 1*
Relay 1 (*through 4) setup
Act 1
Action 1
Set relay 1 action
Auto
Automatic
Set relay for automatic
reset
A-nman
Automanual
Set relay for automatic &
manual reset any time
LatCH
Latching
Set relay for latching
operation
Lt-CLr
Latchingcleared
Set relay for latching
operation with manual
reset only after alarm
condition has cleared
Altern
Alternate
Set relay for pump
alternation control
Sanmpl
Sampling
Set relay for sampling
operation
OFF
Off
Disable relay and front
panel status LED (Select
Off to enable Interlock
feature)
Set 1
Set 1
Program set point 1
RSt 1
Reset 1
Program reset point 1
FaiLSF
Fail-safe
Enter Fail-safe menu
FLS 1
Fail-safe 1
Set relay 1 fail-safe
operation
on
On
Enable fail-safe operation
off
Off
Disable fail-safe operation
FLS 2
Fail-safe 2
Set relays 2-4 fail-safe
operation
DeLAY
Delay
Enter relay Time Delay
menu
DLY 1
Delay 1
Enter relay 1 time delay
setup
On 1
On 1
Set relay 1 On time delay
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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34
Display Functions & Messages
Display
Parameter
Action/Setting
Description
OFF 1
Off 1
Set relay 1 Off time delay
DLY 2
Delay 2
Enter relays 2-4 time delay
setup
break
Loop break
Set relay condition if loop
break detected
Break1*
Loop
break 1*
Set relay 1 (*through 4)
condition if loop break
detected
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 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
Contrl
Control
Enter Control menu
Auto
Automatic
Press Enter to set meter for
automatic operation
nmAn
Manual
Press Enter to manually
control relays or analog
output operation
pass
Password
Enter the Password menu
Pass 1
Password 1
Set or enter Password 1
Pass 2
Password 2
Set or enter Password 2
Pass 3
Password 3
Set or enter Password 3
unloc
Unlocked
Program password to lock
meter
locd
Locked
Enter password to unlock
meter
999999
-99999
Flashing
Over/under range condition
Main Menu
The main menu consists of the most commonly used
functions: Setup, Reset, Control, and Password.
• Press Menu button to enter Programming Mode
then press the Up arrow button to scroll main
menu.
• Press Menu, at any time, to exit and return to
Run Mode. Changes made to settings prior to
pressing Enter are not saved.
• Changes to the settings are saved to memory
only after pressing Enter/F3.
• The display moves to the next menu every time a
setting is accepted by pressing Enter/F3.
Page 35
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35
Setting Numeric Values
The numeric values on PV1 (main display) 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. The leading zero in any of the unit designations
is omitted. Because of this, if the leading zero of any
unit designation is the currently selected unit, none of
the digits will be brighter than any other. Pressing the
Up arrow will increment the value to 1.
The range of numeric values for each unit designation
is from 0-99 for feet, 0-11 for inches and either 0-7 or
0-15 for fractional inches depending on whether the
desired display is in eighths (1/8) or sixteenths (1/16)
mode.
Press and hold up arrow to auto-increment the display
value.
Press the Enter button, at any time, to accept a
setting or Menu button to exit without saving changes.
Setting Up the Meter (setup)
The Setup menu is used to select:
1. Input signal the meter will accept
2. Dual-scale feature for some level
applications
3. Select the display units/tags
4. Decimal point position
5. Programming Menu
6. Display parameter and intensity
7. Relay operation
8. 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.
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Setting the Input Signal (Input)
Enter the Input menu to set up the meter to display
current (nmA) or voltage (Volt) inputs.
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.
After selecting mA or Volt input, d-SCAL is displayed;
press Enter to select “Yes” or “No”. Selecting “Yes”
enables the dual-scale feature, which allows for the
Scale (SCALE) and Units (units) menus to be used to
scale the same input in two different scales for PV1 &
PV2.
Set d-SCAL to NO if both displays are to be used for
anything other than PV1 & PV2.
Setting the Input Units or Custom Tags (units)
Enter the display unit or custom tag that will be
displayed if d unit is selected as the line 2
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 display line 2.
The engineering units or custom legends can be set
using the following 7-segment character set:
Display
Character
Display
Character
0
0
k K 1
1
l L 2
2
nm m 3
3
n n 4
4
O O 5
5
o o 6
6
p P 7
7
q q 8
8
r r 9
9
s
S
A
A
t
t
b
b
u u C
C
v V c
c
uw
w
d
d
x
X
e
E
y Y f
F
z Z g
G
- - 9
g
/ / H
H
[ ] h
h
] [ I
I
= = I
i
!
Degree(<)
j
J
Space
Notes:
1. Degree symbol represented by (<) if programming with
MeterView Pro.
2. The letters “m” and “w” use two 7-segment LEDs each;
when selected the characters to the right are shifted
one position.
3. Press and hold up arrow to auto-scroll the characters in
the display.
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37
Setting the Decimal Point (dEc pt)
The decimal point on PV2 (display line 2) may be set
only if the dual-scale level feature is selected. It may
be set with up to five decimal places or with no
decimal point at all.
Pressing the Right arrow moves the decimal point one
place to the right until no decimal point is displayed,
and then it moves to the leftmost position. Pressing
the Up arrow moves the decimal point one place to
the left.
Programming the Meter (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 Scale (SCALE) and
the Calibrate (Cal) menus.
Process inputs may be scaled or calibrated to any
display within the range of the meter.
The PD8-6001 is a single input meter with dual-scale
capability.
If the dual-scale level feature is selected in the Setup
menu, the Scale 1 and Scale 2 menus are enabled for
PV1 & PV2 respectively.
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.
Program Menu for Single Scale Process
Program Menu for Dual-Scale Level Applications
Additional parameters, not needed for most
applications, are programmed in the Advanced
Features menu. See Advanced Features Menu on
page 50.
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
for PV1 and up to 8 linearization points may be
selected for PV2. See Multi-Point Linearization
(Linear) menu on page 53 for details.
Scaling the Meter (SCALE)
The process input (4-20 mA, 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.
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Dual-Scale for Level Applications
The analog input can be displayed in two different
scales, by enabling the dual-scale feature (d-SCAL) in
the Setup - Input menu. See Setting the Input Signal
(Input) on page 36.
To enable the dual-scale feature for level applications
displaying height and volume, you must select
d-SCAL in the Input selection menu.
Scaling the Input for PV1 (SCAL 1)
Scaling the Input for PV2 (SCAL 2)
Error Message (Error)
An error message indicates that the calibration or
scaling process was not successful.
After the error message is displayed, the meter
reverts to the input prior to the failure during
calibration or scaling and to input 1 during internal
calibration, allowing the appropriate input signal to be
applied or programmed.
The error message might be caused by any of the
following conditions:
1. Input signal is not connected to the proper
terminals or it is connected backwards*.
2. Wrong signal selection in Setup menu*.
3. Minimum input span requirements not
maintained.
4. Input 1 signal inadvertently applied to calibrate
input 2*.
Minimum Input Span
The minimum input span is the minimum difference
between input 1 and input 2 signals required to complete
the calibration or scaling of the meter.
Calibrating the Meter with External Source (Cal)
Note: To scale the meter without a signal source refer to
Scaling the Meter (
SCALE
) on page 37.
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 mA; Display 1: 0FT0IN(0/16 or 0/8)
Input 2: 20 mA; Display 2: 20FT0IN(0/16 or 0/8)
Warm up the meter for at least 15 minutes before
performing calibration to ensure specified
accuracy.
Input Range
Input 1 & Input 2 Span
4-20 mA
0.15 mA
10 VDC
0.10 VDC
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Setting the Display Parameter & Intensity (dsplay)
The main display (Line 1) can be programmed to
display:
1. Process value
2. Relay set points
3. Max & min values
4. Modbus® input
The secondary display (Line 2) can be programmed
to display:
1. Unit or tag
2. Process value 2 (PV2)
3. Percent of PV1 (PCT)
4. Relay set points
5. Level value in feet with unit or tag
6. Max & min values
7. Engineering units or custom legends
8. Modbus® input
9. Off (no display)
After setting up the input and display, press the Menu
button to exit programming and skip the rest of the
setup menu.
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.
Display Parameter Menu
Dual-Scale Display Feature
The PD8-6001 has a rather unique, and very flexible
dual-scale capability- a second scaled display that
can represent the measured input in a different form
(i.e. feet & gallons). This is of particular value in level
applications. Both displays are independently scaled
and are based on the 4-20 mA input signal. This
function can be used for feet & gallons, feet & meters,
feet & percent, feet & barrels, and more.
Feet & Gallons Feet & Meters
Feet & Percent Feet & Barrels
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Setting the Relay Operation (relay)
This menu is used to set up the operation of the
relays.
• During setup, the relays do not follow the input
and they will remain in the state found prior to
entering the Relay menu.
1. Relay 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)
2. Set point
3. Reset point
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)
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 (nonlatching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after
alarm condition has cleared)
5. Pump alternation control (automatic reset
only)
6. Sampling (the relay is activated for a userspecified time)
7. Off (relay state controlled by Interlock
feature)
The following graphic shows relay 1 action setup;
relay 2-4 are set up in a similar fashion.
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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 (Processed as a low signal condition)
The following graph shows the loop break relay
operation for a high alarm relay.
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.
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Low Alarm Operation (Set < Reset)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay. For
relay to turn back “on”, signal must go above set point and then go below it.
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.
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.
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Pump Alternation Control Operation
Relay Sampling Operation
When the signal crosses the set point, the relay trips and the sample time starts. After the sample time has elapsed,
the relay resets. The cycle repeats every time the set point is crossed, going up for high alarms and going down for
low alarms.
The sample time can be programmed between 0.1 and 5999.9 seconds.
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Relay Operation Details
Overview
The four-relays option for the meter expands its
usefulness beyond simple indication to provide users
with alarm and control functions. Typical applications
include high and low temperature, level, pressure or
flow alarms, control applications such as simple on/off
pump control, and pump alternation control for up to 4
pumps. There are four basic ways the relays can be
used:
1. High and Low Alarms with Latching or NonLatching Relays
2. Simple On/Off Control with 100% Adjustable
Deadband
3. Sampling (Based on Time)
4. Pump Alternation Control for up to 4 Pumps
Relays Auto Initialization
When power is applied to the meter, the front panel
LEDs and alarm relays will reflect the state of the
input to the meter. The following table indicates how
the alarm LEDs and relays will react on power-up
based on the set and reset points:
Fail-Safe Operation
The following table indicates how the relays behave
based on the fail-safe selection for each relay:
Fail-Safe
Selection
Non-Alarm State
Alarm State
Power
Failure
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.
Relay terminology for following tables
Terminology
Relay Condition
On
Alarm (Tripped)
Off
Normal (Reset)
Ack
Acknowledged
The On and Off terminology does not refer to the
status of the relay’s coil, which depends on the failsafe mode selected.
• In latching relay mode, if Fail-Safe is off, latched
relays will reset (unlatch) when power is cycled.
Alarm #
HI or LO
Alarm
Set Point
Reset Point
Power-Up
Reading
Relay &
LED
1
HI
10FT0IN 0/16
5FT0IN 0/16
4FT11IN 15/16
Off 2 LO
7FT0IN 0/16
9FT0IN 0/16
4FT11IN 15/16
On 3 LO
2FT6IN 0/16
4FT0IN 0/16
4FT11IN 15/16
Off
4
HI
4FT6IN 0/16
2FT0IN 0/16
4FT11IN 15/16
On
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Non-Latching Relay (Auto)
In this application, the meter is set up for automatic
reset (non-latching relay). Acknowledging the alarm
while it is still present has no effect on either the LED
or the relay. When the alarm finally goes away, the
relay automatically resets and the LED also goes off.
Non-Latching Relay with Manual Reset (A-nman)
In this application, the meter is set up for automatic
and manual reset at any time (non-latching relay).
The LED and the relay automatically reset when the
meter returns to the normal condition.
In addition, the relay can be manually reset while the
alarm condition still exists, but the LED will stay on
until the meter returns to the normal condition.
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
Latching Relay (LatcH)
In this application, the meter is set up for manual
reset at any time. Acknowledging the alarm even if
the alarm condition is still present resets the relay and
turns off the LED.
Manual reset any time
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack
Off
Off
Latching Relay with Clear (Lt-Clr)
In this application, the meter is set up for manual
reset only after the signal passes the reset point
(alarm condition has cleared). Acknowledging the
alarm while it is still present has no effect on either
the LED or the relay. When the alarm is
acknowledged after it returns to the normal state, the
LED and the relay go off. Notice that the LED remains
on, even after the meter returns to the normal
condition. This is because, for latching relays, the
alarm LED reflects the status of the relay, regardless
of the alarm condition.
Manual reset only after
alarm condition has cleared
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
On
On
Ack
Off
Off
Automatic reset only
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
Off
Off
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Acknowledging Relays
There are three ways to acknowledge relays
programmed for manual reset:
1. Via the programmable front panel function keys
F1-F3 (Example: F3 assigned to ACK).
2. Remotely via a normally open push button wired
to the F4 terminal.
3. Remotely via a normally open push button wired
to one of the digital inputs and the +5 V terminal
on the digital I/O connections.
When the ACK button or the assigned digital input is
closed, all relays programmed for manual reset are
acknowledged.
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
30FT0IN 0/16
10FT0IN 0/16
Controls pump #1
2
35FT0IN 0/16
5FT0IN 0/16
Controls pump #2
3
4FT0IN 0/16
9FT0IN 0/16
Controls low alarm
4
40FT0IN 0/16
29FT0IN 0/16
Controls high alarm
Pump Alternation Operation
1. Pump #1 turns on when level reaches 30FT, when
level drops below 10FT, pump #1 turns off.
2. The next time level reaches 30FT, pump #2 turns
on, when level drops below 10FT, pump #2 turns
off.
3. If the level doesn’t reach 35FT, pump #1 and
pump #2 will be operating alternately.
4. If pump #1 cannot keep the level below 35FT,
pump #2 will turn on at 35FT, then as the level
drops to 10FT, pump #1 turns off, pump #2 is still
running and shuts off below 5FT.
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 4FT and relay #4 will go into alarm if the
level exceeds 40FT.
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
4FT10IN 0/16
7FT6IN 0/16
Controls low alarm
2
45FT0IN 0/16
42FT0IN 0/16
Controls high alarm
3
40FT0IN 0/16
9FT0IN 0/16
Controls backup pump
4
30FT0IN 0/16
10FT0IN 0/16
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
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Pump Alternation Visual
Representation
The following graphics provide a visual representation
of a typical pump alternation application with high and
low alarm monitoring:
1. Relay #4 turns the main pump on at 30FT and
turns it off at 10FT.
2. With the Pump Alternation feature activated, the
next time the level reaches 30FT, relay #3
transfers and starts the backup pump.
3. If the backup pump is not able to keep up, and
the level reaches 40FT, relay #4 transfers and
starts the main pump as well.
4. Relay #2 trips the High Level Alarm at 45FT and
resets at 42FT.
5. Relay #1 trips the Low Level Alarm at 4FT10IN and
resets at 7FT6IN.
Setting Up the Interlock Relay (Force On) Feature
Relays 1-4 can be set up as interlock relays. To set
up the relays for the interlock feature:
1. Access the Setup – Relay – Action menu and set
the action to off.
2. In the Advanced features – User menu program
any of the digital inputs to Force On any of the
internal relays (1-4).
3. Connect a switch or dry contact between the +5V
terminal and the corresponding digital input (dI-1
to dI-4) terminal.
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front
panel LEDs are steady on) when SW1 & SW2
switches (above) are closed. If the contacts to these
digital inputs are opened, the corresponding front
panel LEDs flash indicating this condition. The
processes being controlled by the interlock relay will
stop, and will re-start only after the interlock relay is
re-activated by the digital inputs (switches).
Note: If multiple digital inputs are assigned to the same
relay, then the corresponding logic is (AND) – i.e. both
switches must be closed to activate the relay.
• If the digital inputs are assigned to the Interlock
Function, then they cannot be used to program
the meter remotely.
1 2 3 4 5
6
+5
I1
I2
I3
I4
O1
7
8
O2
O3
9
10
O4
G
DI 1-4
DO 1-4
5 VDC
GND
SW2
SW1
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Scaling the 4-20 mA Analog Output (Aout)
The 4-20 mA analog output can be scaled to provide
a 4-20 mA signal for any display range selected.
No equipment is needed to scale the analog output;
simply program the display values to the
corresponding mA output signal.
The Analog Output menu is used to program the
4-20 mA output based on display values.
Reset Menu (reset)
The Reset menu is used to reset the maximum or
minimum reading (peak or valley) reached by the
process; both may be reset at the same time by
selecting “reset high & low” (rst HL).
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.
For further details, see Setting Numeric Values
on page 35, Analog Output Value for Loss of
4-20 mA Input (Loop Break) on page 54.
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Setting Up the Password (pass)
The Password menu is used for programming three
levels of security to prevent unauthorized changes to
the programmed parameter settings.
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
Protecting or Locking the Meter
Enter the Password menu and program a six-digit
password.
For instructions on how to program numeric values
see Setting Numeric Values on page 35.
Making Changes to a Password Protected Meter
If the meter is password protected, the meter will
display the message Locd (Locked) when the Menu
button is pressed. Press the Enter button while the
message is being displayed and enter the correct
password to gain access to the menu. After exiting
the programming mode, the meter returns to its
password protected condition.
Disabling Password Protection
To disable the password protection, access the
Password menu and enter the correct password
twice, as shown below. The meter is now unprotected
until a new password is entered.
If the correct six-digit password is entered, the meter
displays the message unLoc (unlocked) and the
protection is disabled until a new password is
programmed.
If the password entered is incorrect, the meter
displays the message Locd (Locked) for about two
seconds, and then it returns to Run Mode. To try
again, press Enter while the Locked message is
displayed.
Did you forget the password?
The password may be disabled by entering a
master password once. If you are authorized to
make changes, enter the master password 508655
to unlock the meter.
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Advanced Features Menu
To simplify the setup process, functions not needed
for most applications are located in the Advanced
Features menu.
Press and hold the Menu button for three seconds to
access the advanced features of the meter.
Advanced Features Menu & Display Messages
The following table shows the functions and
messages of the Advanced Features menu in the
order they appear in the menu.
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
filtEr
Filter
Set noise filter value
bypASs
Bypass
Set filter bypass value
Round
Round
Set the rounding value for
display variables
seriAl
Serial
Set serial communication
parameters
SlaVId
Slave ID
Set slave ID or meter
address
baud
Baud rate
Select baud rate
Tr dLY
Transmit delay
Set transmit delay for serial
communication
Parity
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 or round
horizontal tank function
PV 1
PV1
Select PV1 number of
linearization points
Linear
Linear
Set meter for linear
function and select number
of linearization points
No PtS
Number of
points
Set PV1 for 2 to 32-point
linearization
Set PV2 for 2 to 8-point
linearization
PV 2
PV2
Select PV2 number of
linearization points
Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
rht
Round
horizontal tank
Set meter for round
horizontal tank volume
calculation
Inch
Dimension
Enter dimension in inches
to calculate volume in
gallons
cnm
Dimension
Enter dimension in
centimeters to calculate
volume in liters
dianmr
Diameter
Enter the tank’s diameter
in inches or centimeters
Length
Length
Enter the tank’s length in
inches or centimeters
Cutoff
Cutoff
Program Low-Height Cutoff
Value for PV 1
aoutPr
Analog Output
Program
Enter Analog Output
Programmable parameters
menu
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
Break
Set analog output value if
input loop break is
detected
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-F4 function key
Ack
Acknowledge
Acknowledge relays
reset
Reset
Enter Reset menu
Rst Hi
Reset Max
Reset Maximum
Rst Lo
Reset Min
Reset Minimum
Rst HL
Reset Max-Min
Reset Maximum &
Minimum
relay
Relay
Relay menu
Set 1*
Set Points
1-4
*Set Points 1-4
Rly d
Relay Disable
Relay Disable (all relays)
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Advanced Features Menu & Display Messages
Display
Parameter
Action/Setting
Rly e
Relay Enable
Relay Enable (all relays)
O Hold
Output
Hold
Hold current relay states
and analog output as they
are until a button assigned
to enable relays (Rly E) is
pressed
d Hold
Display
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
Line 1 High
Max on line 1
Ln1 lo
Line 1 Low
Min on line 1
Ln1 Hl
Line 1
High/Low
Max/min line 1
Ln2 Hi
Line 2 High
Max on line 2
Ln2 lo
Line 2 Low
Min on line 2
Ln2 Hl
Line 2
High/Low
Max/min line 2
F On 1*
Force On
Relay 1
*Force relay 1-4 on
Contrl
Control
Control Menu
disabl
Disable
Disable the selected
function key or digital I/O
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
Calibrate 4-20 mA current
input (internal reference
source used for scaling the
input)
C lo
Current low
Calibrate low current input
(e.g. 4 mA)
C Hi
Current high
Calibrate high current input
(e.g. 20 mA)
V CAL
Voltage
calibration
Calibrate voltage input
V Lo
Voltage low
Calibrate low voltage input
(e.g. 0 V)
V Hi
Voltage high
Calibrate high voltage input
(e.g. 10 V)
Diag
Diagnostics
Display parameter settings
LED t
LED test
Test all LEDs
Info
Information
Display software number
and version
Erase
Erase
Erase MeterView Pro
software stored in meter’s
memory
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
Second
Display Value
Main
Display Value
1
12.093
12.093
12FT1IN 2/16
12.953
12.953
12FT11IN 7/16
5
12.093
12.095
12FT1IN 2/16
12.953
12.955
12FT11IN 7/16
10
12.093
12.090
12FT1IN 1/16
12.953
12.950
12FT11IN 6/16
50
12.093
12.100
12FT1IN 3/16
12.953
12.950
12FT11IN 6/16
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Modbus® RTU Serial Communications (serial)
The meter is equipped with serial communications
capability as a standard feature using Modbus® RTU
Serial Communication Protocol.
The meter may be connected to a PC for initial
configuration via the on-board USB connection. For
ongoing digital communications with a computer or
other data terminal equipment, use the RS-485
connection with the appropriate serial converter; see
Ordering Information on page 7 for details.
• DO NOT connect any equipment to the RJ45
M-LINK connector. Otherwise damage will occur
to the equipment and the meter.
• DO NOT disconnect the RJ45 connector located
to the left of the power terminal block. Doing so
will disable the on-board digital I/O, and the
RS-485 serial communications.
Notes:
1. Refer to the ProtEX-MAX Modbus® Register Tables
located at www.predig.com for details.
2. Changes made to the Serial menu are initialized after
the menu key is pressed or after navigating through the
remainder of the serial parameters (i.e. pass the t-byte
parameter).
When using more than one meter in a multi-drop
mode, each meter must be provided with its own
unique address. The meter address (Slave ID) may
be programmed between 1 and 247. The transmit
delay may be set between 0 and 199 ms. The parity
can be set to even, odd, or none with 1 or 2 stop bits.
Select Menu (SElect)
The Select menu is used to select the input signal
conditioner applied to the input (linear or round
horizontal tank), low-height 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 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.
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Multi-Point Linearization (Linear)
Multi-point linearization capability is available for the
main (PV1) and second (PV2) displays, but it is most
commonly used on the second display to display
volume of non-linear tanks. This allows the user to
display both level in feet and inches and volume on
one meter.
Up to 32 linearization points may be entered for PV1
and up to eight for PV2. These points may be entered
with the front panel buttons, or with MeterView Pro
Software.
The menus for PV1 and PV2 are activated by
selecting the dual-scale feature.
Using MV Pro for Multi-Point Linearization
Using MeterView Pro software increases the speed
and accuracy of entering multiple linearization points.
The points can be manually entered into MeterView
Pro or imported from a spreadsheet. Files can be
saved for later use.
The following screen shot from MeterView Pro shows
PV1 with the standard two-point scaling method and
PV2 with six points of linearization:
Note: Scale values can also be imported from an Excel
spreadsheet.
Round Horizontal Tank Linearization (rHt)
This function automatically calculates the volume in a
round horizontal tank with flat ends and allows that
reading to be displayed on the meter’s second
display. The user can now display level in feet and
inches on the main display and volume on the second
display. This feature is only available on PV2 since
PV1 is the designated level indicator.
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
dimensions. Enter the diameter and the length in
inches and the results are calculated automatically in
US gallons; if centimeters, the results are 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 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.
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54
Low-Height Cutoff (CutofF)
The low-height cutoff feature allows the meter to be
programmed so that the display will always read zero
below a certain point for whatever reason the user
desires. The cutoff can be disabled to display
negative values.
The cutoff value may be programmed from
0FT1IN(0/16 or 0/8) to 99FT11IN(15/16 or 7/8). The meter will
display zero below the cutoff value. Programming the
cutoff value to 0FT0IN(0/16 or 0/8) disables the cutoff
feature.
Analog Output Programming (AoutPr)
The Analog Output Programming menu is used to
program the behavior of the 4-20 mA output. The
following parameters and functions are programmed
in this menu:
1. Source: Source for generating the 4-20 mA
output (e.g. PV)
2. Overrange: Analog output value with display in
overrange condition
3. Underrange: Analog output value with display in
underrange condition
4. Break: Analog output value when loop break is
detected
5. Max: Maximum analog output value allowed
regardless of input
6. Min: Minimum analog output value allowed
regardless of input
7. Calibrate: Calibrate the internal 4-20 mA source
reference used to scale the 4-20 mA output
Analog Output Source
The source for generating the 4-20 mA output may be
assigned to the process variable, maximum or
minimum value reached by the process, 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 is
recommended to use a milliamp meter with a
resolution of at least 0.1 µA to measure the output
current. The values saved internally during this
procedure are used for scaling the 4-20 mA output in
the Setup menu.
Analog Output Calibration Procedure
1. Wire the PD8-6001 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 18. 4-20 mA Output
Connections on page 29 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 PD8-6001 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 PD8-6001 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.
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.
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Function Keys & Digital I/O
Available Settings
Refer to the following table for descriptions of each
available function key or digital I/O setting.
Display
Description
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
tare
Capture tare and zero the display
Rst tr
Reset captured tare and resume normal
operation
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
F On 1*
Force relay 1 (*through 4) into the on state.
This function is used in conjunction with a
digital input to achieve interlock functionality.
See Setting Up the Interlock Relay (Force
On) Feature on page 47 for details.
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 automanual or latching
Reset
Directly access the reset menu
nmenu
Mimic the menu button functionality
(digital inputs only)
rigHt
Mimic the right arrow/F1 button functionality
(digital inputs only)
up
Mimic the up arrow/F2 button functionality
(digital inputs only)
Enter
Mimic the enter/F3 button functionality
(digital inputs only)
Alnm 1*
Provide indication when alarm 1 (*through 4)
has been triggered (digital outputs only)
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.
Page 56
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56
The following 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.
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.
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 though 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 55.
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
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
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ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
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57
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 NOCONTACT 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
LOCK) 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.
Function Keys Operation
During operation, the programmable function keys
operate according to the way they have been
programmed in the Advanced Features – User menu.
See Programmable Function Keys User Menu (user)
on page 54 for details.
The table on page 56 shows the factory default
settings for F1, F2, and F3.
Digital Inputs Operation
Five (5) digital inputs, F4, DI-1 to DI-4, come standard
on the meter. These digital inputs are programmed
identically to function keys F1, F2, and F3. The inputs
are triggered with a contact closure to +5 in the case
of digital inputs 1-4 or with an active high signal, see
Digital I/O Connections on page 29 for details. The F4
is triggered with a contact closure to COM or with an
active low signal. During operation, digital inputs
operate according to the way they are programmed in
the Advanced Features – User menu. See
Programmable Function Keys User Menu (user) on
page 54 for details.
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.
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58
Troubleshooting
The rugged design and the user-friendly interface of
the meter should make it unusual for the installer or
operator to refer to this section of the manual.
However, due to the many features and functions of
the meter, it’s possible that the setup of the meter
does not agree with what an operator expects to see.
If the meter is not working as expected, refer to the
Diagnostics menu and recommendations below.
Diagnostics Menu (diag)
The Diagnostics menu is located in the Advanced
Features menu, to access Diagnostics menu see
Advanced Features Menu on page 50.
This menu allows the user to test the functionality of
all the meter LEDs, check the meter’s software and
version information, and erase the MeterView Pro
software installation files from the meter. Press the
Enter button to view the settings and the Menu button
to exit at any time.
For a description of the diagnostic messages, see
Advanced Features Menu & Display Messages on
page 50.
Testing the Display LEDs
To test all LEDs on the display:
1. Go to the Diagnostics menu (diAG) and
press Enter button.
2. Press Up arrow button and scroll to
LED Test menu (led t)
3. Press the Enter button to activate the LED
Test. The meter will cycle through all digits,
decimal points, and relay indicators to
enable the operator to check that all LEDs
are functioning properly.
4. Press the Enter button again to access the
Information menu (info) or press the Menu
button to return to Run Mode.
Determining Software Version
To determine the software version of a meter:
1. Go to the Diagnostics menu (diAG) and press
Enter button.
2. Press Up arrow button and scroll to Information
menu (Info).
3. Press Enter to access the software number (SFT)
and version (UER) information. Write down the
information as it is displayed. Continue pressing
Enter until all the information is displayed.
4. The meter returns to Run Mode after displaying
all the settings.
Reset Meter to Factory Defaults
When the parameters have been changed in a way
that is difficult to determine what’s happening, it might
be better to start the setup process from the factory
defaults.
Instructions to load factory defaults:
1. Enter the Advanced Features menu. See
Advanced Features Menu on page 50.
2. Press Up arrow to go to Diagnostics (diAG) menu
3. Press and hold Right arrow for three seconds,
press Enter when display flashes reset.
Note: If Enter is not pressed within three seconds, the
display returns to the Diagnostics menu.
4. The meter goes through an initialization
sequence (similar as on power-up) and loads the
factory default settings.
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Factory Defaults & User Settings
The following table shows the factory setting for most
of the programmable parameters on the meter.
Parameter
Display
Default Setting
Input type
Input
4-20 mA
Dual-scale feature
d-SCAL
No (Single scale)
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
4FT0IN 0/16
Input 2
InP 2
20.000 mA
Display 2
Dis 2
20
FT0IN 0
/16
Decimal point
dd.ddd
3 places
Cutoff value
CutofF
0.0 (disabled)
Display assignment
Dsplay
Display line 1 (Main)
Line 1
PV: Process variable
Display line 2
(Second)
Line 2
Eng unit default= level
Display intensity
d-Inty
6
Relay 1 action
Act 1
Automatic
Relay 1 set point
Set 1
1
FT0IN 0
/16
Relay 1 reset point
RSt 1
0
FT6IN 0
/16
Relay 2 action
Act 2
Automatic
Relay 2 set point
Set 2
2
FT0IN 0
/16
Relay 2 reset point
RSt 2
1
FT6IN 0
/16
Relay 3 action
Act 3
Automatic
Relay 3 set point
Set 3
3
FT0IN 0
/16
Relay 3 reset point
RSt 3
2
FT6IN 0
/16
Relay 4 action
Act 4
Automatic
Relay 4 set point
Set 4
4
FT0IN 0
/16
Relay 4 reset point
RSt 4
3
FT6IN 0
/16
Fail-safe relay 1
Fls 1
Off
Fail-safe relay 2
Fls 2
Off
Fail-safe relay 3
Fls 3
Off
Fail-safe relay 4
Fls 4
Off
On delay relay 1
On 1
0.0 sec
Off delay relay 1
Off 1
0.0 sec
On delay relay 2
On 2
0.0 sec
Parameter
Display
Default Setting
Off delay relay 2
Off 2
0.0 sec
On delay relay 3
On 3
0.0 sec
Off delay relay 3
Off 3
0.0 sec
On delay relay 4
On 4
0.0 sec
Off delay relay 4
Off 4
0.0 sec
Loop break relay 1
ignore
Ignore
Loop break relay 2
ignore
Ignore
Loop break relay 3
ignore
Ignore
Loop break relay 4
ignore
Ignore
Display 1 analog out
Dis 1
4
FT0IN 0
/16
Output 1 value
Out 1
4.000 mA
Display 2 analog out
Dis 2
20
FT0IN 0
/16
Output 2 value
Out 2
20.000 mA
Source analog output
Source
Process Variable
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
Slave ID (Address)
SlaVId
247
Baud rate
baud
9600
Transmit delay
Tr dly
50 ms
Parity
Parity
Even
Byte-to-byte timeout
t-byt
010 (0.1 sec)
F1 function key
F1
Reset max & min
F2 function key
F2
Line 1: Max (Hi)
F3 function key
F3
Acknowledge relays
F4 function
F4
Acknowledge relays
Digital input 1
dI 1
Menu
Digital input 2
dI 2
Right arrow
Digital input 3
dI 3
Up arrow
Digital input 4
dI 4
Enter
Digital output 1
dO 1
Alarm 1
Digital output 2
dO 2
Alarm 2
Digital output 3
dO 3
Alarm 3
Digital output 4
dO 4
Alarm 4
Password 1
Pass 1
000000 (unlocked)
Password 2
Pass 2
000000 (unlocked)
Password 3
Pass 3
000000 (unlocked)
Page 60
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Troubleshooting Tips
This meter is a highly sophisticated instrument with an extensive list of features and capabilities. If the programming
buttons are used to program the meter, it may be a difficult task to keep everything straight. That is why we strongly
recommend the use of the free MeterView Pro software for all programming activities. A USB cable is provided with
the meter for programming with MeterView Pro software.
If you have programmed the meter with the programming buttons and it is not working as intended, try
re-programming the meter using MeterView Pro software.
Symptom
Check/Action
No display at all
Check power at power connector
Not able to change setup or programming, Locd
is displayed
Meter is password-protected, enter correct six-digit password to
unlock or Master Password of 508655
Meter does not respond to input change
If a Low-Height 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-height cutoff value.
To prevent the display from showing a negative value, set the
low-height 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, 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 25
2. Serial settings
3. Meter address and baud rate
If the display locks up or the meter does not
respond at all
Cycle the power to reboot the microprocessor.
SafeTouch buttons do not respond
If mechanical button was pushed, the SafeTouch buttons will be
re-enabled automatically 60 seconds after the last button push.
If slide switch on connector board is in DISABLE position, switch to
ENABLE.
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 Power LED Indicator is
off
Check:
1. Modular cable connection
2. Power to the device
Page 61
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
61
Troubleshooting Tips
Symptom
Check/Action
If only the TX (or DATA IN) data status LED is
flashing when serial communications attempted
Check
1. Serial cable
2. Protocol selected on device
3. Instrument address & baud rate
4. Program address & baud rate
If both data status LEDs (TX and RX) are off
when trying to communicate
Remove all unnecessary cables and instruments from the bus. Try
getting the system to work with only one device (to ease
troubleshooting) and then expand the system one device at a time.
Communications slow
Increase the baud rate
Random communication errors
1. Increase the TX delay time
2. Decrease the baud rate
Other symptoms not described above
Call Technical Support for assistance
Note: Certain sequences of events can cause unexpected results. To solve these issues, it is best to start fresh from factory
defaults and use the manual as a step by step programming guide, rather than a random approach to programming. To reset the
meter to factory defaults, see Reset Meter to Factory Defaults on page 58. In addition, for best results, we recommend using the
free MeterView Pro software for all programming needs.
Page 62
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
62
NOTES
Page 63
63
Page 64
ProtEX-MAX PD8-6001 Explosion-Proof Feet & Inches Meter
Instruction Manual
PRECISION DIGITAL CORPORATION
233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
LIM8-6001_F
SFT109 Ver 4.000 & up
04/22
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
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