PD6800-0L1 EXPLOSION-PROOF LOOP-
POWERED PROCESS METER WITH BAR GRAPH
4-20 mA Input Loop-Powered
Modern, Sleek and Practical Enclosure
Easy-to-Read 20-Segment Tank Level Indicator
5 Digits, 0.6" (15.2 mm) Upper Display
7 Alphanumeric Character, 0.4" (10.2 mm) Lower Display
SafeTouch
Password Protection
32-Point, Square Root, or Exponential Linearization
Open Collector Alarm Output
Loop-Powered or External DC-Powered Backlight Standard
HART
3 V Drop (6.0 V with Backlight)
Explosion-Proof, IP68, NEMA 4X Enclosure
Operates from -40 to 75°C
PRECISION DIGITAL CORPORATION
89 October Hill Road • Holliston MA 01746 USA
Tel (800) 343-1001 • Fax (508) 655-8990
®
Through-Glass Button Programming
®
Protocol Transparent
www.predig.com
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Disclaimer
The information contained in this document is subject to change without notice.
Precision Digital makes no representations or warranties with respect to the contents
hereof; and specifically disclaims any implied warranties of merchantability or fitness
for a particular purpose.
!
CAUTION: Read complete
instructions prior to installation
and operation of the meter.
WARNING: Risk of
electric shock or
personal injury.
WARNINGS
• 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 flameproof/explosion-proof requirements.
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.
Registered Trademarks
All trademarks mentioned in this document are the property of their respective
owners.
© 2015 Precision Digital Corporation. All rights reserved.
www.predig.com
2
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
INTRODUCTION
The PD6800-0L1 is a rugged, explosion-proof loop-powered meter fully featured for
demanding applications in hazardous areas or in the harshest environmental
conditions. The bar graph representation of the process input is perfect for level
applications and allows for quick assessment of current conditions. The meter
derives all of its power from the 4-20 mA loop. It is programmed using the four
SafeTouch
with or without a calibration signal. The numeric display will read up to 99999 and the
alphanumeric display can be programmed to show any combination of numbers and
letters up to seven characters long for use as engineering units, the process
identification tag or a display for the calculated volume when using for level
applications. The backlight lets you see the display under any lighting condition and
can be powered from either the 4-20 mA loop or from a separate DC power supply.
The enclosure is provided with two threaded conduit holes and integrated pipe or wall
mounting slotted flanges.
®
through-glass buttons, without removing the cover, and can be scaled
ORDERING INFORMATION
Model Description
PD6800-0L1
Accessories
Model Description
PDA0001 3/4" M-NPT to F-M20 Reducer
PDA0002 3/4" M-NPT to 1/2" F-NPT Reducer
PDA6846
PDA6846-SS
Explosion-Proof Loop-Powered Process Meter with Bar
Graph
Pipe Mounting Kit. Includes zinc-plated u-bolt for 2" pipe,
(2) washers, and (2) nuts.
Pipe Mounting Kit. Includes stainless steel u-bolt for 2"
pipe, (2) washers, and (2) nuts.
3
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Table of Contents
INTRODUCTION --------------------------------------------------------------------------- 3
ORDERING INFORMATION ------------------------------------------------------------ 3
SPECIFICATIONS ------------------------------------------------------------------------- 6
General ------------------------------------------------------------------------------------------------ 6
Input ---------------------------------------------------------------------------------------------------- 7
Open Collector Output --------------------------------------------------------------------------- 7
Product Ratings and Approvals -------------------------------------------------------------- 8
Electromagnetic Compatibility ---------------------------------------------------------------- 9
SAFETY INFORMATION ------------------------------------------------------------------------- 9
INSTALLATION -------------------------------------------------------------------------- 10
Unpacking ------------------------------------------------------------------------------------------ 10
Pre-Installed Conduit/Stopping Plug ------------------------------------------------------ 10
Mounting -------------------------------------------------------------------------------------------- 11
Cover Jam Screw -------------------------------------------------------------------------------- 11
Connections --------------------------------------------------------------------------------------- 11
Connections & Wiring Diagrams ...................................................................... 13
External Acknowledge Connection .................................................................. 14
Open Collector Output Connections ................................................................ 15
SETUP AND PROGRAMMING ------------------------------------------------------ 16
SafeTouch® Buttons ---------------------------------------------------------------------------- 17
SafeTouch Button Operation ........................................................................... 17
SafeTouch® Button Tips and Troubleshooting ................................................. 17
Buttons and Display ---------------------------------------------------------------------------- 18
Main Menu ------------------------------------------------------------------------------------------ 20
Setting Up the Meter (SETUP) ----------------------------------------------------------------- 21
Setting Numeric Values ................................................................................... 22
Setting the Level Decimal Point (DECIMAL) ..................................................... 22
Main Menu Display Functions & Messages ..................................................... 23
Scaling the Meter (SCaLe) ............................................................................... 24
Minimum Input Span ---------------------------------------------------------------------- 25
Scale Error Message (SPN ERR) ------------------------------------------------------- 25
Scaling the Tank Level Indicator (PERCENT) .................................................... 25
Configuring the Display (DISPLAY) .................................................................. 26
Setting Up the Password (PASSWRD) ................................................................ 28
Locking the Meter ------------------------------------------------------------------------- 28
Making Changes to a Password Protected Meter -------------------------------- 28
Disabling Password Protection -------------------------------------------------------- 29
Advanced Features Menu (ADVANCE) ------------------------------------------------------ 30
Advanced Features Menu & Display Messages --------------------------------------- 31
Alarm Output (OUTPUT) .................................................................................... 33
Input Signal Filter (FILTER) ............................................................................. 34
Volume Display Scaling (VOLSCAL) .................................................................. 34
Level Input Live Signal Calibration (LVL CAL) ................................................. 35
4
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Internal Calibration (ICAL) ............................................................................... 36
Level Input Multipoint Linearization (MULTIPT) ................................................ 37
Information (INFO) ........................................................................................... 37
OPERATION ------------------------------------------------------------------------------ 38
Front Panel Buttons Operation ------------------------------------------------------------- 38
Display Maximum, Minimum, and Input Current -------------------------------------- 39
Reset Meter to Factory Defaults ------------------------------------------------------------ 40
Factory Defaults & User Settings ---------------------------------------------------------- 41
TROUBLESHOOTING ----------------------------------------------------------------- 42
Troubleshooting Tips --------------------------------------------------------------------------- 42
MOUNTING DIMENSIONS ------------------------------------------------------------ 43
QUICK USER INTERFACE REFERENCE ---------------------------------------- 45
EC DECLARATION OF CONFORMITY ------------------------------------------- 47
Table of Figures
Figure 1. Connector Board ...................................................................... 12
Figure 2. Connections without Backlight ............................................... 13
Figure 3. Connections with Loop-Powered Backlight ........................... 13
Figure 4. Connections with Externally-Powered Backlight .................. 14
Figure 5. External Alarm Reset/Acknowledge Connections ................. 14
Figure 6. Connection to Device with Internal Pull-Up ........................... 15
Figure 7. Output Connections ................................................................. 15
Figure 8. Scale Menu ................................................................................ 24
Figure 9. Enclosure Dimensions – Front View ...................................... 43
Figure 10. Enclosure Dimensions – Side Cross Section View ............. 44
5
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
DISPLAY
DISPLAY
UPDATE RATE
DISPLAY
OVERRANGE
DISPLAY
UNDERRANGE
PROGRAMMING
METHOD
NOISE FILTER Programmable LO, med, HI, or OFF
RECALIBRATION Recalibration is recommended at least every 12 months.
MAX/MIN
DISPLAY
PASSWORD
NON-VOLATILE
MEMORY
NORMAL MODE
REJECTION
ENVIRONMENTAL
CONNECTIONS Screw terminals accept 12 to 22 AWG wire
ENCLOSURE
MOUNTING
OVERALL
DIMENSIONS
WEIGHT 5.00 lbs (80 oz, 2.27 kg)
WARRANTY 3 years parts and labor
Five digits
(-9999 to 99999)
Seven characters 0.4" (10.2 mm) high, 14-segment.
Symbols
Backlight White
Ambient > -25°C: 2 Updates/Second
Ambient < -25°C: 1 Update/5 Seconds
Display flashes
Display flashes
Four SafeTouch® through-glass buttons when cover is
installed. Four internal pushbuttons when cover is removed.
Max/Min readings reached by the process are stored until
reset by the user or until power to the meter is turned off.
Programmable password restricts modification of
programmed settings.
All programmed settings are stored in non-volatile memory
for a minimum of ten years if power is lost.
64 dB at 50/60 Hz
Operating temperature range: -40 to 75°C
Storage temperature range: -40 to 75°C
Relative humidity: 0 to 90% non-condensing
Explosion-proof die cast aluminum with glass window,
corrosion resistant epoxy coating, color: blue. NEMA 4X, 7, &
9, IP68.
Two ¾" NPT threaded conduit openings. One ¾" NPT metal
conduit/stopping plug with 12 mm hex key fitting installed.
May be mounted directly to conduit. Two slotted flanges for
wall mounting or NPS 1½" to 2½" or DN 40 to 65 mm pipe
mounting. See Mounting Dimensions on page 43.
5.65" x 5.25" x 4.86" (W x H x D)
(144 mm x 133 mm x 124 mm)
0.60" (15.2 mm) high, 7-segment,
automatic lead zero blanking.
Bar Graph which displays process
input from 0-100% of scaled value.
99999
-9999
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Input
ACCURACY ±0.03% of calibrated span ±1 count,
MULTI-POINT
LINEARIZATION
PROGRAMMABLE
EXPONENT
LOW FLOW CUTOFF
TEMPERATURE
DRIFT
DECIMAL POINT User selectable decimal point
MINIMUM SPAN Input 1 & Input 2: 0.10 mA
CALIBRATION
RANGE
MAXIMUM
VOLTAGE DROP
EQUIVALENT
RESISTANCE
EXTERNALLY
POWERED
BACKLIGHT
INPUT
OVERLOAD
square root & programmable exponent accuracy range:
10-100% of calibrated span.
2 to 32 points
1.0001 to 2.9999
0-99999 (0 disables cutoff function)
50 PPM/C from -40 to 75C ambient
An Error message will appear if input 1 and input 2 signals
are too close together.
Input
Range
4-20 mA 0.10 mA
Without Backlight or with
Externally-Powered (DC
Powered) Backlight
3.0 VDC @ 20 mA 6.0 VDC @ 20 mA
150 Ω @ 20 mA 300 Ω @ 20 mA
Voltage Range: Maximum Power
9-36 VDC 9 VDC 12 VDC 24 VDC 36 VDC
0.2 W 0.25 W 0.5 W 0.75 W
Over current protection to 2 A max.
Minimum Span
Input 1 & Input 2
With Loop-Powered
Backlight
Open Collector Output
RATING Isolated open collector, 30 VDC @ 150 mA max.
ALARM O UTPUT Assign to level or volume for high or low alarm trip point.
DEADBAND 0-100% FS, user selectable
ACKNOWLEDGE Front panel ENTER button and external RESET terminals
resets output and screen indication.
7
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Product Ratings and Approvals
FM Class I, Division 1, Groups B, C, D
ATEX
CSA
IECEx
Class II, Division 1, Groups E, F, G
Class III, Division 1; T6
Class I, Zone 1, AEx d IIC T6 Gb
Zone 21, AEx tb IIIC T85°C
Ta = -40°C to +75°C
Enclosure: Type 4X & IP66
Certificate number: 3040391
II 2 G D
Ex d IIC T6 Gb
Ex tb IIIC T85°C Db IP68
Ta = -40°C to +75°C
Certificate number: Sira 10ATEX1116X
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1; T6
Class I, Zone 1, Ex d IIC T6
Ta = -40°C to +75°C
Enclosure: Type 4X & IP66
Certificate number: 11 2325749
Ex d IIC T6 Gb
Ex tb IIIC T85°C Db IP68
Ta = -40°C to +75°C
Certificate number: IECEx SIR 10.0056X
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.
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 PD6800-0L1 must be installed in accordance with
the ATEX directive 94/9/EC, and the product certificate Sira 10ATEX1116X.
8
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Electromagnetic Compatibility
EMISSIONS
EN 61326:2006
Safety requirements for measurement, control, and laboratory use – Industrial
Group 1 Class A ISM emissions requirements
Radiated
Class A
Emissions
IMMUNITY
ESD
RFI – Amplitude
Modulated
EFT
Telco Surge
CRFI
EN 61326:2006
Safety requirements for measurement, control, and laboratory use
±4 kV contact,
±8 kV air
80-1000 MHz @ 10 V/m,
1.4-2.0 GHz @ 3 V/m,
2.0-2.7 GHz @ 1 V/m,
80% AM (1 kHz)
±2 kV DC mains, ±1 kV other
±1 kV
3 V, 0.15-80 MHz, 1 kHz 80% AM
SAFETY INFORMATION
Read complete instructions prior to installation and operation of the meter.
WARNINGS
Installation and service should be performed only by trained service
personnel. Service requiring replacement of internal components must be
performed at the factory.
Disconnect from supply before opening enclosure. Keep cover tight while
circuits are alive. Conduit seals must be installed within 18" (450mm) of
the enclosure.
Verify that the operating atmosphere of the meter is consistent with the
appropriate hazardous locations certifications.
If the meter is installed in a high voltage environment and a fault or
installation error occurs, high voltage may be present on any lead
.
9
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
INSTALLATION
For Installation in USA: The PD6800-0L1 must be installed in accordance with the
National Electrical Code (NEC) NFPA 70.
For Installation in Canada: The PD6800-0L1 must be installed in accordance with
the Canadian Electrical Code CSA 22.1. All input circuits must be derived from a
CSA approved Class 2 source.
For European Community: The PD6800-0L1 must be installed in accordance with
the ATEX directive 94/9/EC and the product certificate Sira 10ATEX1116X.
Disconnect from supply before opening enclosure. Keep cover
tight while circuits are alive. Conduit seals must be installed within
WARNING
Wiring connectors are accessed by opening the enclosure. To access electrical
connectors, remove the 2 captive screws, then disconnect the ribbon cable from the
display module and set the display module aside.
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/Stopping Plug
The PD6800-0L1 is supplied with one pre-installed conduit plug for installations that
do not require the use of both conduit entries. The conduit/stopping plug includes an
internal hexagonal socket recess for removal. The pre-installed plug and installation
is included in all hazardous area approvals of the PD6800-0L1.
WARNING
18" (450mm) of the enclosure.
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.
10
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Mounting
The PD6800-0L1 has two slotted mounting flanges that may be used for pipe
mounting or wall mounting. Alternatively, the unit may be supported by the conduit
using the conduit holes provided.
Refer to Mounting Dimensions, page 43 for details.
Do not attempt to loosen or remove flange bolts while the meter is
in service.
WARNING
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 flameproof 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. Caution: Excess torque may
damage the threads and/or wrench.
Connections
Static electricity can damage sensitive components.
WARNINGS
Observe safe handling precautions for static-sensitive components.
Use proper grounding procedures/codes.
If the meter is installed in a high voltage environment and a fault or
installation error occurs, high voltage may be present on any lead or
terminal.
To access the connectors, remove the enclosure cover and unscrew the two captive
screws that fasten the display module. Disconnect the ribbon cable and remove the
display module. Signal connections are made to a four-terminal connector in the base
of the enclosure. Grounding connections are made to the two ground screws
provided on the base – one internal and one external.
11
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Connections (continued)
SIGNAL + 4-20 mA signal input positive terminal connection
SIGNAL - 4-20 mA signal return/negative terminal connection when not
BACKLIGHT + +9-36 VDC when powering backlight from external supply.
BACKLIGHT - 4-20 mA signal return/negative terminal when using the installed
OUTPUT+
OUTPUTRESET + Contact closure alarm acknowledge pull up to 3 VDC.
RESET-
Refer to Figure 1 for terminal positions.
WARNING
using loop powered backlight.
loop powered backlight or ground/negative when powering
backlight from external supply.
NPN open collector output positive.
NPN open collector output negative.
Contact closure alarm acknowledge ground/negative.
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.
SAFE-TOUCH
BUTTONS
UNLOCK LOCK
-
+
OUTPUT RESET
-
+
SIGNAL BACKLIGHT
Figure 1. Connector Board
12
+
+
-
-
BACKLIGHT
9-36 VDC
POWER
LOOP
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Connections & Wiring Diagrams
Signal connections are made to a four-terminal connector mounted in the base of the
enclosure. The enclosure also provides one internal and one external earth
grounding screw. For installations without backlight, only the two signal terminals are
connected. The 4-20 mA input with no backlight has a maximum voltage drop of 3 V
and is wired as shown in Figure 2. The loop-powered backlight configuration requires
a total maximum voltage drop of 6 V. The backlight is recommended for dim lighting
conditions and is enabled when wired as shown in Figure 3 or Figure 4.
-
-
SAFE-TOUCH
BUTTONS
UNLOCK LOCK
+-+
OUTPUT RESET
+-+
SIGNAL BACKLIGHT
4-20 mA
Power
Transmitter
Supply
Figure 2. Connections without Backlight
Figure 3. Connections with Loop-Powered Backlight
13
9-36 VDC
BACKLIGHT
POWER
LOOP
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Figure 4. Connections with Externally-Powered Backlight
It is possible to use the same transmitter (signal loop) power supply for the externally
powered backlight. The backlight circuit will draw 25 mA in addition to the loop circuit.
External Acknowledge Connection
External acknowledge connections are made to two terminals labeled RESET. Connect
to a contact closure source such as a relay or a pushbutton as shown in
Figure 5.
-
-
+
BACKLIGHT
POWER
-
-
+
9-36 VDC
LOOP
SAFE-TOUCH
BUTTONS
UNLOCK LOCK
+
OUTPUT RESET
+
SIGNAL BACKLIGHT
Figure 5. External Alarm Reset/Acknowledge Connecti ons
14
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Open Collector Output Connections
Output connections are made to two terminals labeled OUTPUT. Connect to an input
device such as alarm indicator as shown in Figure 6, or drive a relay as shown in
Figure 7.
To avoid damaging the PD6800-0L1’s amplifying components, use
care not to wire incorrectly or exceed output ratings. A diode, such
WARNING
as 1N4000 series, will provide protection from relay transients.
Alarm Recorder
or Annunciator
(e.g. PD8-158)
+
-
SAFE-TOUCH
BUTTONS
UNLOCK LOCK
+-+
OUTPUT RESET
+-+
SIGNAL BACKLIGHT
Figure 6. Connection to Device with Internal Pull-Up
5-30 VDC
150 mA MAX
SAFE-TOUCH
BUTTONS
UNLOCK LOCK
Figure 7. Output Connections
15
-
-
+-+
OUTPUT RESET
+-+
SIGNAL BACKLIGHT
9-36 VDC
BACKLIGHT
POWER
-
-
LOOP
9-36 VDC
BACKLIGHT
POWER
LOOP
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
SETUP AND PROGRAMMING
There is no need to recalibrate the meter for milliamps
when first received from the factory.
The meter is factory calibrated for milliamps prior to
shipment. The calibration equipment is certified to NIST
standards.
Overview
Setup and programming is done through the infrared through-glass SafeTouch®
buttons, or using the mechanical buttons when uncovered. There are two slide
switches located on the connector board. One is used to select backlight power (if
equipped) and the other is to lock or unlock the SafeTouch
After all connections have been completed and verified, connect the ribbon cable to
the display module, fasten the display module to the base, install enclosure cover,
and then apply power.
®
Buttons.
16
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
SafeTouch® Buttons
The PD6800-0L1 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 LOCK setting on the SAFE-TOUCH BUTTONS switch
located on the connector board in the base of the enclosure.
SafeTouch Button Operation
To actuate a button, press and remove one finger to the glass directly over the
marked button area. Remove finger to at least 4 inches away from the glass in
between button activations. SafeTouch and mechanical buttons may be held to cycle
through menus or digits in place of repeatedly pushing a button.
The sensors are disabled when a mechanical button is pressed and will automatically
be re-enabled after 60 seconds of inactivity.
SafeTouch® Button Tips and Troubleshooting
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
there is an infrared interference source in line-of-sight to the display or if the buttons
are not needed.
SafeTouch
IMPORTANT
®
Buttons be turned off (slide SAFE-TOUCH BUTTONS switch to OFF) if
®
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.
If the cover has not been installed and secured tightly, it may take a moment for
the SafeTouch buttons to properly self calibrate when the cover is tightened.
SafeTouch buttons will not work if two or more buttons are
detected as being pressed simultaneously. As a result, be careful
to avoid triggering multiple buttons or reaching across one button
location to press another.
17
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
U
Buttons and Display
Button
Symbol
Description Symbol Status
MEN
RESET
Menu
Right arrow/Reset
Tank Level Indicator
DISPLAY
Up arrow/Display
Enter
ENTER
18
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Menu Button
Press the Menu button to enter Programming Mode.
Press the Menu button during Programming Mode to return to the previous
menu selections.
Hold the Menu button for 1.5 seconds at any time to exit Programming Mode
and return to Run Mode.
Press and hold the Menu button for 3 seconds to access the Advanced Fea-
tures of the meter.
Right / Reset Button
Press the Right arrow button to reset the maximum or minimum value while it
is being displayed (see Up / Display Button below).
Press the Right arrow button to move to the next digit or decimal position
during programming.
Press Right to go backward through most selection menus.
Up / Display Button
Press Display when in Run Mode to cycle through displaying the maximum
value, minimum value, and the loop input value in mA. The display will time
out in 12 seconds. Press Display again to resume normal lower display operation (lower display will read RESUME).
Press the Up arrow button to scroll forward through the menus, decimal point,
or to increment the value of a digit.
Enter Button
Press the Enter button to access a menu or to accept a setting.
Press Enter to acknowledge alarm (if enabled).
19
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Main Menu
The main menu consists of the most commonly used functions: Setup, Advanced,
and Password.
Press MENU button to enter Programming Mode then press the Up Arrow button to
scroll through the main menu.
Hold MENU, at any time, to exit and return to Run Mode. Changes made to settings
prior to pressing ENTER are not saved.
Press the MENU button during Programming Mode to return to return to the previous
menu selections.
Changes to the settings are saved to memory only after pressing ENTER.
The display moves to the next menu every time a setting is accepted by
pressing ENTER.
20
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Setting Up the Meter (SETUP)
The Setup menu is used to select:
1. Engineering units decimal location
2. Engineering units display scale
3. Tank indicator full and empty values
4. Bottom display selection
Press the ENTER button to access any menu or press UP arrow button to scroll
through choices.
Hold MENU, at any time, to exit and return to Run Mode. Changes made to settings
prior to pressing ENTER are not saved.
Press the MENU button during Programming Mode to return to return to the previous
menu selections.
SETuP
SETuP
21
SETuP
SETuP
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Setting Numeric Values
The numeric values are set using the RIGHT and UP arrow buttons. Press RIGHT
arrow to select next digit and UP arrow to increment digit.
The digit being changed blinks.
Press the ENTER button, at any time, to accept a setting.
Hold MENU, at any time, to exit and return to Run Mode. Changes made to settings
prior to pressing ENTER are not saved.
Press the MENU button during Programming Mode to return to return to the previous
menu selections.
Note: The currently selected digit will blink. Pressing the
Right Arrow button will select the next digit, causing it to blink.
Setting the Level Decimal Point (DECIMAL)
Decimal point may be set with up to four decimal places or with no decimal point.
Pressing the Right arrow moves the decimal point one place to the right and
pressing the Up arrow moves the decimal point one place to the left.
SETuP 1111.1 222.22
22
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Main Menu 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 Parameter Action/Setting
SETUP
DECIMAL
SCALE
INPUT 1
DSPLY 1
INPUT 2
DSPLY 2
SAVE ?
SPN ERR
PERCENT
0 PCT
100 PCT
DISPLAY
TAG
VOLUME
VOL+TAG
PCT HT
PCT+TAG
OFF
ADVANCE
PASSWRD
UNLOCKD
LOCKED
Setup
Decimal Point
Scale
Input 1
Display 1
Input 2
Display 2
Save
Span Error
Percent
0 Percent
100 Percent
Display
Tag
Volume
Volume + Tag
Percent Height
Percent Height
+ Tag
Off
Advanced
Password
Unlocked
Locked
For instructions on how to program numeric values,
see Setting Numeric Values on page 22.
Enter Setup menu
Enter the decimal point location
Enter the Scale menu for engineering units
Set input 1 value in mA
Set display 1 engineering units
Set input 2 value in mA
Set display 2 engineering units
Save entered scale parameters
Scale point 1 and 2 span error
Scale the tank indicator full and empty values
Set the tank empty value
Set the tank full value
Enter Bottom Display menu
Display a custom unit or tag
Display volume
Display volume and custom tag
Display percent height
Display percent height and custom tag
Disable bottom display
Advanced Features Menu
(See Advanced Features Menu on page 30)
Enter the Password menu
Program password to lock meter
Enter password to unlock meter
23
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Scaling the Meter (SCaLe)
The 4-20 mA input can be scaled to display the process in engineering units. To
scale the meter, enter the value in milliamps (mA) for input 1, and then the
corresponding engineering units display value. Do the same for input 2.
After entering the display 2 value, confirm the new scale by pressing ENTER at the
Save menu.
A signal source is not needed to scale the meter; simply program the inputs and
corresponding display values.
Figure 8. Scale Menu
For instructions on using multipoint scaling, see Level Input Multipoint Linearization
(MULTIPT) on page 37.
For instructions on how to program numeric values see Setting Numeric Values,
page 22.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
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. The minimum
span is 0.10 mA.
Scale Error Message (SPN ERR)
If the minimum span is not maintained, the meter will show a span error (SPN ERR)
and revert to input 2, allowing the appropriate input signals to be applied.
Scaling the Tank Level Indicator (PERCENT)
The display includes a 20-segment tank level indicator. This menu sets full and
empty values, in engineering units, for the tank level indicator.
This value may differ from the 20 mA full-scale and 4 mA empty-scale values
programmed in the Scale menu. This is ideal for level transmitters that output less
than 20 mA at the maximum height of the tank or pit or more than 4 mA at the
minimum height.
As an example, when using a level transmitter that outputs 20 mA at 25 meters, the
tank height indicator may be set for a maximum of 10 meters. When the meter
reaches 10 meters on the display, the tank height indicator will show full, even though
the input is not 20 mA.
setup
-010.0
0300.0
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Configuring the Display (DISPLAY)
The lower (BOTTOM) display may be configured to display a custom tag (TAG), volume
(VOLUME), volume and tag (VOL+TAG), percent of full height (PCT HT), or percent of full
height and tag (PCT+TAG), or be blank (OFF).
A custom tag may be up to seven alphanumeric characters programmed for
identification (e.g. TANK 3) or for engineering units (e.g. GALLONS).
Volume is a separate, second scale of the input process variable. This is configured
in Volume Display Scaling (VOLSCAL) on page 34.
Percent full height shows the percent full of the tank height level indicator
programmed in the Scaling the Tank Level Indicator (PERCENT) menu, on page 25.
The tank level indicator (GRAPH) may also be turned on or off from the display menu.
setup
dsply
dsplygrapH
grapH
botnm
botnm
botnm
botnm
botnm
botnm
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Setting the TAG (TAG)
Any bottom display setting that includes a tag will require the tag to be entered.
dsply botnm
botnm
botnm
The fully alphanumeric values for the tag are set using the RIGHT button to select the
digit, the UP and RIGHT arrow buttons to select the digit reading, and the ENTER
button to confirm and select the next digit.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Setting Up the Password (PASSWRD)
The Password menu is used to program a five-digit password to prevent
unauthorized changes to the programmed parameter settings. A password protected
meter will display LOCKED when the MENU button is pressed.
Locking the Meter
Enter the Password menu and program a five-digit password.
For instructions on how to program numeric values see Setting Numeric Values,
page 22.
Record the password for future reference. If appropriate, it may be
recorded in the space provided.
Model:
Serial Number:
Password: __ __ __ __ __
Making Changes to a Password Protected Meter
If the meter is password protected, the meter will display the message 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.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Disabling Password Protection
To disable the password protection, access the Password menu and enter the correct
password, as shown below.
If the correct five-digit password is entered, the meter displays the message UNLOCKD
(unlocked) and the protection is disabled until a new password is programmed.
If the password entered is incorrect, the meter displays the message LOCKED and
returns to Run Mode. To try again, repeat the above procedure.
Did you forget the password?
The password may be disabled by entering a master
password. If you are authorized to make changes, enter
the master password 50865 to unlock the meter.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Advanced Features Menu (ADVANCE)
To simplify the setup process, functions not needed for most applications are located
in the Advanced Features Menu. Access the Advanced Features Menu by pressing
ENTER at the ADVANCE menu in the Main Menu defined on page 20.
The Advanced Features Menu is used to select:
1. Open collector output
configuration (OUTPUT)
2. Input filter (FILTER)
3. Volume display scale
(VOLSCAL)
4. Live signal level
display calibration
(LVL CAL)
5. Internal Calibration
(ICAL)
6. Multipoint linearization
for level (MULTIPT)
7. Meter system
information display
(INFO)
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Advanced Features Menu & Display Messages
The following table shows the Advanced features menu functions and messages in
the order they appear in the menu.
Display Parameter Action/Setting
OUTPUT
OFF
ALARM
LEVEL
SET
RESET
VOLUME
FILTER
LO
nmED
HI
OFF
VOLSCAL
vOl
DECIMAL
NO PTS
INPUT 1
DSPLY 1
INPUT 2
DSPLY 2
SAVE ?
LVL CAL
INPUT 1
DSPLY 1
INPUT 2
DSPLY 2
SAVE ?
Output
Off
Alarm Output
Level Alarm
Set Point
Reset Point
Volume Alarm
Filter
Filter Low
Filter Medium
Filter High
Filter Off
Volume Scale
Volume Decimal
Number of Points
Input 1
Display 1
Input 2
Display 2
Save
Level Calibration
Input 1
Display 1
Input 2
Display 2
Save
Enter output menu
Disable output
Enter alarm output menu
Assign alarm output to level
Set alarm set point
Set alarm reset point
Assign alarm output to volume
Set noise filter
Set noise filter to low setting
Set noise filter to medium setting
Set noise filter to high setting
Disable noise filter
Scale the volume display
Set the decimal position for volume scaling
Set the number of points for volume scaling
Set volume input 1 on the level display
Set volume display 1
Set volume input 2 on the level display
Set volume display 2
Save entered volume scale parameters
Calibrate the level display
Calibrate input 1 value
Set display 1 feet and inches
Calibrate input 2 value
Set display 2 feet and inches
Save entered calibration parameters
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Display Parameter Action/Setting
ICAL
4.000
20.000
Error
SPAN
MULTIPT
DISABLE
ENABLE
INFO
SOFT
ver
DFALTS?
Internal Calibration
4.000 mA
20.000 mA
Error Span
Multipoint
Disable
Enable
Meter
Information
Software
Software Version
Reset Defaults
Enter internal reference calibration
Calibrate input at 4 mA
Calibrate input at 20 mA
Error with calibration point 1 and 2 span
Set level display multipoint linearization
Disable multipoint linearization
Enable multipoint linearization
Show software number and version, or reset
to factory defaults
Software number
Software version
Restore factory default parameter settings
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Alarm Output (OUTPUT)
The PD6800-0L1 is equipped with an NPN open collector output that may be set up
for high or low alarm trip point based on the level display (LEVEL) or the volume scale
(VOLUME). The output may be disabled by selecting OFF.
When the alarm is enabled for level and the alarm set point has been reached, the
level display will flash, accompanied by the bottom display alternating between
normal display and ALARM. A tank height indicator segment will flash at the level the
alarm is set to while the level indicator is at or above the alarm point.
When the alarm is enabled for volume and the alarm set point has been reached, the
bottom display will flash, alternating between its normal display and ALARM.
To set a high alarm, program the set point value to be greater than the reset point.
To set a low alarm, program the set point value to be less than the reset point.
To acknowledge an alarm, press the ENTER button once for acknowledge prompt
and a second time to confirm. Acknowledging an alarm will turn off the alarm output
and stop the display from flashing. The bottom display will continue to alternate
between its normal display and ALARM until the alarm condition is cleared.
The alarm status will show on the display even if the output is not wired.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Input Signal 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 can be set to low (LO), medium (MED), high (HI), or off (OFF).
The higher the filter setting, the longer the averaging time and so the longer the
display may take to find its final value.
The filter contains a noise filter bypass feature so that while small variations in the
signal will be filtered out, large, abrupt changes to the input signal are displayed immediately.
Volume Display Scaling (VOLSCAL)
Volume may be scaled as a function of the level display. It may use up to 32-point
linearization. The multi-point linearization can be used to linearize the display for nonlinear signals such as those from level transmitters used to measure volume in oddshaped tanks.
To display the volume, select a bottom display including the volume display in the
Display menu as shown in Configuring the Display (DISPLAY) on page 26.
To scale the volume display, select the decimal point location (0, 1, 2, 3, or 4), then
enter the level in engineering units for input 1, the corresponding volume display
value, and the same for input 2.
After entering the display 2 value, confirm the new volume scale by pressing ENTER
at the Save menu.
34
FT IN
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Level Input Live Signal Calibration (LVL CAL)
The meter can be calibrated using a current source instead of scaling. This process
will override previously programmed scaling of the level display.
The use of a calibrated signal source is strongly recommended.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Internal Calibration (ICAL)
There is no need to recalibrate the meter when first received
from the factory. The meter is factory calibrated prior to
shipment. The calibration equipment is certified to NIST standards
The internal calibration is the meter’s master calibration that makes scaling the meter
without a signal source possible. Use of a calibrated signal source is necessary to
perform an internal calibration of the meter. Check calibration of the meter at least
every 12 months. Incorrect calibration will affect the ability of the meter to properly
read, scale, and display the input.
Notes:
The signal source must have a full-scale accuracy of 0.002% or
better between 4 and 20 mA in order to maintain the specified
accuracy of the meter.
Allow the meter to warm up for at least 15 minutes before
performing the calibration procedure.
Press MENU, navigate to ADVANCE and press enter to access the Advanced Features
Menu. Press the UP arrow button to scroll to the Internal Calibration menu (ICAL)
and press ENTER.
The meter displays 4.000. Apply a 4.000 mA signal and press ENTER. The display
flashes for a moment while the meter is accepting the signal.
After the signal is accepted, the meter displays 20.000. Apply a 20.000 mA signal and
press ENTER. The display flashes for a moment while the meter is accepting the
signal.
Calibration Error Message (Error SPAN)
An error message indicates that the calibration process was not successful. After the
error message is displayed, the meter will revert to the 4.000 calibration menu. The
error message might be caused by inadvertently leaving the signal at the previous
level or not maintaining the minimum span. Press the MENU button to cancel the
current calibration process if necessary.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Level Input Multipoint Linearization (MULTIPT)
This menu enables multipoint linearization for scaling and calibrating of the level
display.
Setting MULTIPT to ENABLE will alter the level display Scaling (See Scaling the Meter
on page 24) and Level Calibration (See Level Input Live Signal Calibration on page
35) menus to include a Number of Points (NO PTS) parameter before entering
32-point linearization can be used to linearize the display for non-linear signals.
Input 1.
Information (INFO)
The Information menu shows the software identification number and version number.
To determine the software version of a meter:
Go to the Information menu (INFO) and press ENTER button.
Continue pressing ENTER to scroll through the software release number and
software version.
Following the information display, the meter will exit the Advanced Features menu
and return to run mode.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
U
OPERATION
Front Panel Buttons Operation
Button
Symbol
MEN
RESET
DISPLAY
ENTER
Description
Press to Enter or Exit Programming Mode
Used to Reset Maximum and Minimum Values
Press to Cycle Displaying Maximum Value,
Minimum Value, and Input Current in mA
Press to Resume Run Mode in Lower Display
Press to Acknowledge Alarm (if Enabled)
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Display Maximum, Minimum, and Input Current
The maximum and minimum values and the measured input loop current may be
displayed temporarily on the lower display. To display these values, press the
DISPLAY button. The meter will display the word MAXIMUM on the bottom display and
the maximum value reached (since the last maximum reset) on the top display. Press
the DISPLAY button again and the meter will display the word MINIMUM on the
bottom display and the minimum value reached on the top display. Pressing the
RESET button while either of these values is displayed will reset that value to the
current display value.
Press the DISPLAY button a third time and the meter will display LOOP MA on the
bottom display and the measured input current in milliamps (mA) on the top display.
The current display will remain for 10 seconds and then the lower display will return
to normal run mode as programmed in Configuring the Display (DISPLAY) on page
26. Press the DISPLAY button a fourth time to return to the normal operation. The
meter will display RESUME followed by the run mode lower display.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
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:
Enter the Advanced Features Menu.
Press and hold Reset button when INFO is shown. For information on navigating to
the Information menu, refer to Advanced Features Menu on page 30.
Press Enter when RESET DFALTS? prompt is shown
Note: If Enter is not pressed within three seconds, the prompt will stop flashing return
to showing INFO.
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable
parameters on the meter. Next to the factory setting, the user may record the new
setting for the particular application.
Model: ______________ S/N: _______________ Date: _________
Parameter Display Default Setting User Setting
Basic Setup
Level Decimal Point
Input 1
Display 1
Input 2
Display 2
Tank Indicator 0%
Tank Indicator 100%
Bottom Display
Bar Graph
Tag
Advanced Features
Output
Filter
Volume Decimal Point
Volume Scale
Number of Points
Volume Scale Input 1
Volume Display 1
Volume Scale Input 2
Volume Display 2
Multipoint
Password
Password
DECIMAL
INPUT 1
DSPLY 1
INPUT 2
DSPLY 2
0 PCT
100 PCT
BOTTOM
GRAPH
TAG
OUTPUT
FILTER
vOl
DECIMAL
NO PTS
INPUT 1
DSPLY 1
INPUT 2
DSPLY 2
MULTIPT
PASSWRD
1111.1
4.000 mA
0.0
20.00 mA
100.0
0.0
100.0
Tag
On
TANK 1
Off
Low
0000000
02
0.0
0
100.0
100,000
Disable
00000 (unlocked)
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
TROUBLESHOOTING
Due to the many features and functions of the meter, it’s possible that the setup of
the meter does not agree with what an operator expects to see. If the meter is not
working as expected, refer to the Diagnostics menu and consult the
recommendations described below.
Troubleshooting Tips
Symptom Check/Action
No display or faint display Check input signal connections.
Level display unsteady Increase filter setting in Advanced menu.
Meter displays error message during
calibration (error SPAN)
Level display flashes
99999 or -9999
Volume display flashes
9999999 or -999999
Display response is too slow Check filter setting to see if it can be
If the display locks up or the meter
does not respond at all
Backlight does not appear. Backlight is intended for viewing
Other symptoms not described above Call Technical Support for
SafeTouch® buttons do not respond Mechanical button was pushed or
Perform hard reset by shorting S+ and
S- terminals.
Check signal connections.
Verify minimum input span requirements
Check input signal and scaling within
range of 99999 and -9999
Check level display within volume scale
range of 9999999 and -999999.
lowered to LO or OFF.
Perform hard reset by shorting S+ and
S- terminals.
assistance in dim lighting conditions. It
may not be noticeable under good
lighting conditions.
Check connections are as shown in
Figure 3 or Figure 4 on page 13.
assistance.
®
SafeTouch
position. The SafeTouch
re-enabled automatically 60 seconds
after the last button push.
If slide switch on connector board is in
Lock position, switch to Unlock.
Sunlight can interfere with the sensors. It
is recommended to shield the window
from sunlight while operating the buttons
by standing so as to block direct
sunlight.
slide switch is in lock
®
buttons will be
42
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
MOUNTING DIMENSIONS
All units: inches [mm]
0.32 [8.2]
3.35 [85.1]
2.25 [57.1]
5.65 [143.5]
5.25 [133.4]
Figure 9. Enclosure Dimensions – Front View
43
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
3.35 [85.0]
4.15 [105.5]
3.22 [81.9]
Figure 10. Enclosure Dimensions – Side Cross Section View
4.86 [123.5]
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PD6800-0L1 Loop-Powered Process Meter Instruction Manual
A
QUICK USER INTERFACE REFERENCE
Pushbutton Function
MENU Go to programming mode or leave programming. Hold for 5
RIGHT Arrow Move to next digit. Go to previous menu or alphanumeric char-
UP Arrow Move to next selection or increment digit. Cycle through maxi-
ENTER Accept selection/value and move to next selection.
seconds to enter Advanced Features menu directly.
acter selection. Reset max or min while displayed.
mum, minimum, and mA display mode.
Acknowledge alarms.
Operational Modes
Hold MENU
Advanced
Features
for 5 seconds
MENU
Run
Setup
UP
rrow
UP Arrow
MENUMENU
mA Display
45
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
46
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
EC DECLARATION OF CONFORMITY
Manufacturer: Precision Digital Corporation
Device: PD6800 Series Process Meter
Notified Body: Sira Certification Service, notified body no. 0518
Rake Lane, Eccleston, Chester, CH4 9JN, England
EC Type Examination Certificate: Sira 10ATEX1116X
Quality Assurance Notification No.: SIRA 10 ATEX M462
Compliance with Standards: Product Markings:
Community Directives:
Issued in accordance with ATEX Directive 94/9/EC
89 October Hill Rd Ste 5
Holliston, MA 01746 USA
EN 60079-0:2009 II 2 G D
EN 60079-1:2007 Ex d IIC T6 Gb
EN 60079-31:2008 Ex tb IIIC T85°C Db IP68
EN 61326:2006 Tamb -40°C to +75°C
IEC 61010-1:2010 & EN 61010-1:2010,
including Group and National Differences as
they apply for AU, CA, US and KR
The standard EN 60079-0:2009 is no longer harmonized. The
requirements of this standard have been checked against the
harmonized standard EN 60079-0:2012 and there were no major
technical changes affecting the latest technical knowledge for the
products listed above.
94/9/EC ATEX Directive
2004/108/EC EMC Directive
Name: Jeffrey Peters
Company: Precision Digital Corporation
Title: President
Date: 08/01/2014
47
PD6800-0L1 Loop-Powered Process Meter Instruction Manual
How to Contact Precision Digital
For Technical Support:
Call: (800) 610-5239 or (508) 655-7300
Fax: (508) 655-8990
Email: support@predig.com
For Sales Support:
Call: (800) 343-1001 or (508) 655-7300
Fax: (508) 655-8990
Email: sales@predig.com
For the latest version of this manual please visit:
www.predig.com
04/15
LIM6800L_B
SFT087 Ver 1.300 & up
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