PD662 Loop-Powered Meter
Instruction Manual
C US
• 4-20 mA Input Loop-Powered
• -1999 to 2999 Display
• Easy Four-Button Programming
• NEMA 4X Enclosure
• Loop-Powered Backlight Option
• 1.7 Volt Drop without Backlight
• 32-Point and Square Root Linearization Input Functions
• Programmable Noise Filter
• HART Protocol Transparent
• CSA Certified for -40 to 75°C Operation
(-55 to 75°C with Heater Option)
PRECISION DIGITAL CORPORATION
89 October Hill Road • Holliston MA 01746 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
PD662 Loop-Powered 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
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.
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.
© 2010-2015 Precision Digital Corporation. All rights reserved.
WARNING: Risk of
electric shock or
personal injury.
www.predig.com
2
PD662 Loop-Powered Meter Instruction Manual
INTRODUCTION
The PD662 NEMA 4X, CSA Certified loop-powered meter is perfect for
applications where a simple, inexpensive display is required and AC
power is not available. The PD662 derives all its power from the 4-20 mA
loop. The PD662 is scaled using four push buttons and can be done
without applying an actual calibration signal. The PD662’s display will
read up to 2999; we call this 3½+ digits! The loop-powered backlighting
option lets you see the display under any lighting condition and is
powered completely from the 4-20 mA loop. This means there is no need
for additional wiring and never any batteries to change. Multi-point
linearization with up to 32 points and the square root function allow for
conditioning of signals from non-linear transmitters without adding
external components to the system.
The PD662 is housed in a rugged NEMA 4X enclosure and is provided
with one ½" NPT pipe conduit hole. The PD662 is also available with an
optional DC-powered heater that allows the PD662 to operate in
temperatures as low as -55°C.
ORDERING INFORMATION
Model Description
PD662-0L0-00* NEMA 4X, CSA Certified Loop-Powered Meter
PD662-0K0-00 NEMA 4X, CSA Certified Loop-Powered Meter with Backlight
PD662-0L0-A0 NEMA 4X, CSA Certified Loop-Powered Meter with Heater
PD662-0K0-A0
* Quick Shipment Program product, typically shipped within 2 working days
Accessories
Model Description
PDA6624 Panel Mounting Kit
PDA6845 2" Pipe Mounting Kit
NEMA 4X, CSA Certified Loop-Powered Meter with
Backlight & Heater
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PD662 Loop-Powered Meter Instruction Manual
Table of Contents
INTRODUCTION ------------------------------------------------------------ 3
ORDERING INFORMATION --------------------------------------------- 3
SPECIFICATIONS ---------------------------------------------------------- 6
General ------------------------------------------------------------------------------- 6
Input ----------------------------------------------------------------------------------- 7
Heater --------------------------------------------------------------------------------- 7
COMPLIANCE INFORMATION ----------------------------------------- 8
Safety --------------------------------------------------------------------------------- 8
Electromagnetic Compatibility ----------------------------------------------- 8
SAFETY INFORMATION ------------------------------------------------- 9
INSTALLATION ------------------------------------------------------------- 9
Unpacking --------------------------------------------------------------------------- 9
Mounting -------------------------------------------------------------------------- 10
PD662 Connections ------------------------------------------------------------ 10
Connection & Wiring Diagrams ------------------------------------------- 11
SETUP AND PROGRAMMING ---------------------------------------- 13
Front Panel Buttons ----------------------------------------------------------- 14
Setting Numeric Values ------------------------------------------------------ 15
Programming the Meter ------------------------------------------------------ 15
Main Menu ------------------------------------------------------------------------ 16
Main Menu Display Functions & Messages ---------------------------- 17
Setting the Decimal Point (dP) -------------------------------------------- 17
Scaling the Meter (SCL) ----------------------------------------------------- 18
Calibrating the Meter (Cal) ------------------------------------------------- 19
Recalibrating the Internal Calibration Reference (Ical) ------------ 19
Advanced Features Menu ---------------------------------------------------- 20
Advanced Features Menu & Display Messages ---------------------- 21
Signal Input Conditioning Function (Fnc) ------------------------------- 22
Information Menu (info) ---------------------------------------------------- 22
Input Signal Filter (FIL) ----------------------------------------------------- 22
Internal Calibration (ICal) -------------------------------------------------- 23
OPERATION ---------------------------------------------------------------- 24
Front Panel Buttons Operation -------------------------------------------- 24
Maximum & Minimum Readings (HI & LO) ----------------------------- 25
Reset Meter to Factory Defaults ------------------------------------------- 26
Heater Operation ---------------------------------------------------------------- 26
Factory Defaults & User Settings ----------------------------------------- 27
4
PD662 Loop-Powered Meter Instruction Manual
MOUNTING DIMENSIONS ---------------------------------------------- 28
TROUBLESHOOTING ---------------------------------------------------- 30
Troubleshooting Tips --------------------------------------------------------- 30
QUICK USER INTERFACE REFERENCE GUIDE ---------------- 31
Table of Figures
Figure 1. PD662 Mounting Board Rear View .................................... 11
Figure 2. PD662 Input Connections without Backlight ................... 12
Figure 3. PD662 Input Connections with Backlight ......................... 12
Figure 4. PD662 Heater Power Connections .................................... 12
Figure 5. Case Dimensions – Front View ......................................... 28
Figure 6. Case Dimensions – Side View ........................................... 28
Figure 7. Case Dimensions – Bottom View ...................................... 29
Figure 8. PDA6845 Pipe Mounting Kit ............................................... 29
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PD662 Loop-Powered Meter Instruction Manual
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
DISPLAY 0.6" (15.24 mm) LCD, 3½+ digits; -1999 to 2999
DISPLAY
UPDATE RATE
OVERRANGE
UNDERRANGE
PROGRAMMING
METHOD
NOISE FILTER Programmable HI, LO, or OFF
RECALIBRATION Recalibration is recommended at least every 12 months.
MAX/MIN
DISPLAY
NON-VOLATILE
MEMORY
NORMAL MODE
REJECTION
ENVIRONMENTAL Operating temperature for CSA certification: -40 to 75°C
CONNECTIONS Removable screw terminals accept 12 to 22 AWG wire
ENCLOSURE Impact resistant polyester plastic, body gray, cover clear
MOUNTING ½” NPT pipe (0.865 in, 12.7 mm) conduit hole on bottom
TIGHTENING
TORQUE
OVERALL
DIMENSIONS
WEIGHT 10.4 oz (295 g)
WARRANTY 3 years parts and labor
2 Updates/Second
Display flashes
Display flashes
Four internal pushbuttons
Max/Min readings reached by the process are stored until
reset by the user or until power to the meter is turned off.
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
Functional temperature range: -40 to 85°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
with blue faceplate; NEMA 4X, IP66; ½" conduit hole
provided at base.
of enclosure. 0.166 in (4.2 mm) wall mounting holes
located behind front cover screws.
Screw terminal connectors: 4.5 lb-in (0.5 Nm)
4.33" x 3.15" x 2.76" (110 mm x 80 mm x 70 mm)
4.33" x 3.15" x 3.35" (110 mm x 80 mm x 85 mm)
for models with heater option.
2999
-1999
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PD662 Loop-Powered Meter Instruction Manual
Input
ACCURACY
FUNCTION
TEMPERATURE
DRIFT
DECIMAL POINT
MINIMUM SPAN
CALIBRATION
RANGE
MAXIMUM
VOLTAGE DROP
EQUIVALENT
RESISTANCE
INPUT
OVERLOAD
±1 count
Linear (2 to 32 points) or square root
50 PPM/°C from -40 to 85°C ambient
User selectable decimal point
Input 1 & Input 2: 0.40 mA
An Error message will appear if input 1 and input 2 signals
are too close together.
Input
Range
4-20 mA 0.40 mA
Without Backlight With Backlight
1.7 VDC @ 20 mA 3.7 VDC @ 20 mA
85 Ω @ 20 mA 185 Ω @ 20 mA
Over current protection to 2 A max.
Minimum Span
Input 1 & Input 2
Heater
POWER 24 VDC, 11 W max.
REQUIRED
SWITCH & FUSE
OPERATION
METHOD
TEMPERATURE
CUTOFF
ENVIRONMENTAL
(with Heater)
A CSA Approved fuse rated min 30 VDC, 1 A, T and a readily
accessible switch or a circuit breaker shall be provided to
facilitate the disconnection of power to the heater.
On/Off control with an internal temperature sensor. Heater is
on only when necessary due to external temperatures.
Internal 104°C thermal cutoff for over temperature protection.
Operating temperature for CSA certification: -55 to 75°C
Functional temperature range: -55 to 85°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
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PD662 Loop-Powered Meter Instruction Manual
COMPLIANCE INFORMATION
Safety
CSA CERTIFIED U.S. & Canada
CSA FILE NUMBER 157123
CSA APPLICABLE
REQUIREMENTS
LOW VOLTAGE
DIRECTIVE
2252 05 – Process Control Equipment
2252 85 – Process Control Equipment, U.S. Standards
CAN/CSA C22.2 No. 61010-1-04 Safety Requirements
for Electrical Equipment for Measurement, Control, and
Laboratory Use – Part 1: General Requirements
UL 61010-1:2004, 2
Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
IEC 61010-1:2010
Safety requirements for measurement, control, and laboratory use
Electromagnetic Compatibility
EMC EMISSIONS
& IMMUNITY
EN 61326-1:2006
EMC requirements for Electrical equipment for
measurement, control and laboratory use – Industrial
nd
Edition Safety Requirements for
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PD662 Loop-Powered Meter Instruction Manual
SAFETY INFORMATION
!
CAUTION: Read complete
instructions prior to installation
and operation of the meter.
The equipment shall be installed by qualified personnel in accordance
with applicable local and national regulations (e.g. CEC, NEC, FCC,
SCC, etc).
Follow all safety and operation guidelines in this manual. If the meter is
used in a manner not recommended by the manufacturer, the overall
safety will be impaired.
Installation and service should be performed only by trained service
personnel.
This unit is not suitable for hazardous locations such as potentially
explosive zones or locations.
No user replaceable part inside. All service shall be performed at the
factory.
Do not disconnect and reconnect cables during a lightning storm.
Suitable surge suppressor (e.g. lightning protection) shall be provided in
end application installation.
INSTALLATION
All pushbuttons and wiring connectors are accessed by
opening the NEMA 4X enclosure by removing the 4 captive
screws that secure the cover.
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.
9
PD662 Loop-Powered Meter Instruction Manual
Mounting
The PD662 can be wall mounted using the mounting holes beneath the
cover screws. A ½” NPT pipe conduit hole is provided. It can be panel
mounted with the addition of the PDA6624 panel mount kit. It can also
be pipe mounted by using the PDA6845 pipe mount kit.
Refer to Mounting Dimensions, page 28 for details on wall or panel
space requirements.
The unit shall be installed in a way that will prevent
any accidental contact of the internal meter circuits
and power supply lines.
Cable suitable for outdoor use and a CSA Approved
gland rated 4X, or a suitable conduit and a CSA
Approved connector rated 4X, is intended to be used
in final installation.
Metallic conduit shall be reliably bonded to protective
earth/ground without creating any ground loop.
PD662 Connections
Disconnect power before opening the unit.
To access the connectors, remove the enclosure cover and unscrew the
two captive stainless steel screws on the rear mounting board. Remove
the meter assembly from the enclosure. Signal connections are made to a
three-terminal removable connector. The signal wiring terminal block is on
the rear of the meter assembly.
S+ 4-20 mA signal input positive terminal connection
S- 4-20 mA signal return/negative terminal connection
X Not connected (no backlight option)
B- 4-20 mA signal return/negative terminal when using the
installed loop powered backlight option
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PD662 Loop-Powered Meter Instruction Manual
Refer to Figure 1 for terminal positions on the rear of the mounting board
inside the meter enclosure.
Meters with the heater option will also have a two terminal removable
connector on the rear of the assembly. See Figure 4 for wiring details.
P+ 24 VDC power positive terminal connection
P- 24 VDC power negative terminal connection
S+ S- B-
S+ S- B-
WIRING INSTRUCTIONS
Connect s ignal p ositive to terminal S +.
Connect sign al n egative to terminal S-.
If backlight installed, connect
signa l negative to termina l B-, not S- .
Figure 1. PD662 Mounting Board Rear View
Connection & Wiring Diagrams
Signal input connections are made to a three-terminal connector labeled
S+|S-|X for models without a backlight and S+|S-|B- for models with a
backlight. The 4-20 mA input with no backlight has a maximum voltage
drop of 1.7 V and is wired as shown in Figure 2. The loop-powered
backlight configuration requires a total maximum voltage drop of 3.7 V.
The backlight is recommended for dim lighting conditions and is enabled
when wired as shown in Figure 3.
11
PD662 Loop-Powered Meter Instruction Manual
r
r
S+ S- X
4-20 mA
Power
Transmitte
Supply
Figure 2. PD662 Input Connections without Backlight
S+ S- B-
4-20 mA
Power
Supply
Figure 3. PD662 Input Connections with Backlight
P+ P-
Transmitte
12
24 VDC
11 W max
+
Figure 4. PD662 Heater Power Connections
A CSA Approved fuse rated min 30 VDC, 1 A, T and a
readily accessible switch or a circuit breaker shall be
provided to facilitate the disconnection of power to the
heater.
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PD662 Loop-Powered 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
There are no jumpers involved in the setup process of the meter.
Setup and programming is done through the front panel buttons.
After all connections have been completed and verified, apply power to
the loop.
For a Quick User Interface Reference Guide
go to page 31
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PD662 Loop-Powered Meter Instruction Manual
Front Panel Buttons
Button/
Symbol
MENU
ENTER
MENU
ENTER
2662
Description
Menu button to enter programming mode. Press and
hold for 5 seconds to access the Advanced features of
the meter.
Enter button to access a menu or accept a setting.
Right arrow to scroll through the menus or move to the
next digit or decimal position during programming.
Displays the Max then Min display values when
pressed during normal run mode.
Up arrow to scroll through the menus, decimal point,
or to increment the value of a digit.
Resets the Max and Min display value when pressed
during normal run mode.
14
PD662 Loop-Powered 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 two left-most digits on the display are set as a single digit, able to
display -19 to 29.
The digit being changed blinks.
Press the Enter button, at any time, to accept a setting or Menu button
to exit without saving changes.
The decimal point is set using the Right or Up arrow button in the
Setup-decimal point menu.
Programming the Meter
It is very important to read the following information, before proceeding
to program the meter:
• 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.
• Use the Scale (SCL) menu to enter scale parameters without
applying a live signal.
• Alternatively, use the Calibrate (CAL) menu to apply a signal from a
calibrator or a 4-20 mA transmitter to calibrate the meter.
Inputs may be calibrated or scaled to any display within the range of the
meter.
Additional parameters, not needed for most applications, are viewed
and programmed with the Advanced Features menu, see Advanced
Features Menu on page 20.
15
PD662 Loop-Powered Meter Instruction Manual
Main Menu
The main menu consists of the most commonly used functions: Decimal
Point Location, Scale, and Calibration.
Run
Mode
MENU
26.62
• 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.
• The display moves to the next menu every time a setting is
accepted by pressing Enter.
dP SCl CAL
MENU
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PD662 Loop-Powered 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
dp
Decimal point
SCL
Scale
Npt
Number of Points
in1
Scale Input 1
D1
Scale Display 1
in2
Scale Input 2
D2
Scale Display 2
CAL
Calibrate
Npt
Number of Points
in1
Calibrate Input 1
D1
Calibrate Display 1
in2
Calibrate Input 2
D2
Calibrate Display 2
Set decimal point
Enter the Scale menu
Set number of linearization points
Input signal 1 value (mA)
Scaled value for input 1
Input signal 2 value (mA)
Scaled value for input 2
Enter the Calibrate menu
Set number of linearization points
Read input signal 1
Enter value for input 1
Read input signal 2
Enter value for input 2
Setting the Decimal Point (dP)
Decimal point may be set with up to three decimal places or with no
decimal point at all.
Pressing the Right or Up arrow moves the decimal point one place to
the right until no decimal point is displayed, then it moves to the left
most position.
Select Decimal Point
ENTER
dP dd.dd
or
Next
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PD662 Loop-Powered Meter Instruction Manual
Scaling the Meter (SCL)
The 4-20 mA input can be scaled to display the process in engineering
units.
A signal source is not needed to scale the meter; simply program the
inputs and corresponding display values.
If using linear signal input conditioning, enter the number of scale points
(2-32), followed by the input values and display values. If using square
root signal input conditioning, the number of points input menu will not
be present.
SCL
npt
002
Number of Points menu
not displayed for square
root input conditioning.
Set Number of
Scale Points
Press Enter to
Accept Setting
Press Up to
Set Digit Value
Press Right to
Select Next Digit
Press Menu to
Exit at any Time
ENTER
MENU
in1
04.00
Set Input 1
Value
d1
000.0
Set Display 1
Value
Number of Points (npt)
Set the number of linearization points used in the Scale menu. 2 to 32
points may be used. The Scale menu is entered after entering the number of points
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 0.40 mA.
If the minimum span is not maintained, the meter reverts to input 2,
allowing the appropriate input signals to be applied.
in2
Scale
Input 2
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PD662 Loop-Powered Meter Instruction Manual
Calibrating the Meter (Cal)
To scale the meter without a signal source
refer to Scaling the Meter (SCL), page 18.
The meter can be calibrated to display the process in engineering units
by applying the appropriate input signal.
The use of a calibrated signal source is strongly recommended.
Cal
npt
002
in1
Display Flashes
Accepting Input
Number of Points menu
not displayed for square
root input conditioning.
Set Number of
Scale Points
d1
Press Enter to
Accept Setting
Press Up to
Set Digit Value
Press Right to
Select Next Digit
Press Menu to
Exit at any Time
000.0
Set Display 1
Value
ENTER
MENU
in2
Calibrate
Input 2
1. Press the Up arrow button to scroll to the Calibration menu (CAL)
and press Enter.
2. If using linear signal input conditioning, enter the number of
calibration points (2-32).
3. The meter displays in1. Apply a known signal and press Enter.
The display will flash while accepting the signal.
4. When the meter displays d1, press Enter. Enter a corresponding
display value for the signal input, and press Enter to accept.
5. The meter displays in2. Apply a known signal and press Enter.
The display will flash while accepting the signal.
6. When the meter displays d2, press Enter. Enter a corresponding
display value for the signal input, and press Enter to accept.
Recalibrating the Internal Calibration Reference (Ical)
The Internal Calibration (ICAL) menu, located in the Advanced Features
menu, is used to recalibrate the internal calibration reference.
Recalibration is recommended at least every twelve months. Refer to
Internal Calibration (ICal), page 23 for instructions.
19
PD662 Loop-Powered Meter Instruction Manual
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 five seconds to access the Advanced
Features menu
Run Mode
26.62
MENU
Press and hold for five seconds
fnc
inFo
FIL
ICAL
Press Enter to Access Menu
or to Accept Setting
Press Up to Scroll Menu and
to Increment Digit Value
Press Menu to Exit at any Time
20
ENTER
MENU
PD662 Loop-Powered 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
Fnc
Lnr
Sqr
info
Sft
ver
*C
*F
FIL
ICAL
rst
Input Function
Linear
Square Root
Information
Software Information
Version
Calibration Temp (°C) Temperature at time of I-calibration (°C)
Calibration Temp (°F) Temperature at time of I-calibration (°F)
Filter
I-Calibration
Reset Defaults
Set linear or square root input
conditioning function
Set linear scaling
Set square root input conditioning function
Enter the Information menu
Software release number
Meter firmware version
Set filter function level
Internal master factory calibration
Restore factory default parameter
settings
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PD662 Loop-Powered Meter Instruction Manual
Signal Input Conditioning Function (Fnc)
The PD662 provides linear and square root signal input conditioning
functions for inputs from linear and non-linear transmitters.
Linear (Lnr)
Meters are set up at the factory for linear function using two-point linearization. Multi-point linearization with up to 32 points may be used. The
linear function provides a display that is linear with respect to the input
signal between each set of input points.
Square Root (sqr)
The square root function is used to linearize the signal from a differential
pressure transmitter and display flow rate in engineering units.
Information Menu (info)
The Information menu is located in the Advanced Features menu, to access Information menu see Advanced Features Menu on page 20.
It shows software identification number, version number, and calibration
temperatures. To determine the software version of a meter:
1. Go to the Information menu (info) and press Enter button.
2. The meter will automatically scroll through the software release
number and software version. The meter temperatures at the
time of last internal calibration in °C and °F are displayed for
calibration troubleshooting. Pressing the ENTER, RIGHT, or
UP buttons will progress the information display.
3. Following the information display, the meter will exit the
Advanced Features menu and return to run mode.
Input Signal Filter (FIL)
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), 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.
22
PD662 Loop-Powered Meter Instruction Manual
Internal Calibration (ICal)
• 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.
The internal calibration allows the user to scale the meter without
applying a signal. The use of a calibrated signal source is necessary to
perform the internal calibration of the meter. Check calibration of the
meter at least every 12 months.
Notes:
• The signal source must have a full-scale accuracy
of 0.01% 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 internal
calibration procedure.
The Internal calibration menu is part of the Advanced Features menu.
1. Press and hold the MENU button for 5 seconds to enter the
Advanced Features menu.
2. Press the Up arrow button to scroll to the Internal Calibration menu
(ICAL) and press Enter.
3. The meter displays 4.00 mA. Apply a 4.00 mA signal and press
Enter. The display flashes for a moment while the meter is
accepting the signal.
4. After the signal is accepted, the meter displays 20.00 mA. Apply a
20.00 mA signal and press Enter. The display flashes for a moment
while the meter is accepting the signal.
Error Message (Err)
An error message indicates that the calibration process was not
successful. After the error message is displayed, the meter will revert to
input 2 calibration settings. The error message might be caused by
inadvertently leaving the signal at the previous level or not maintaining a
0.40 mA minimum span. Press the Menu button to cancel the current
calibration process if necessary.
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PD662 Loop-Powered Meter Instruction Manual
OPERATION
Front Panel Buttons Operation
Button
Symbol
MENU
ENTER
Description
Press to enter or exit Programming Mode
or exit Max/Min readings
Press to reset Max/Min readings
Press to display Max/Min readings
alternately
Press to display Max or Min reading
indefinitely while displaying Max or Min
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PD662 Loop-Powered Meter Instruction Manual
Maximum & Minimum Readings (HI & LO)
The maximum and minimum (peak & valley) readings reached by the
process are stored in the meter since the last reset or power-up. The
meter flashes HI or LO to differentiate between run mode and max/min
display.
Run Mode
16.62
HI LO
19.45 5.34
10 Sec Time Out
Press Up to Display and to
Toggle Between Max & Min
Press Enter to hold Max/Min
Press Right to Reset Max/Min
Press Menu to Exit Max/Min
1. Press Up arrow button to display maximum reading since the last
reset/power-up.
2. Press Up arrow again to display the minimum reading since the last
reset/power-up.
3. Press Enter to continue to display the Max or Min display reading
by disabling the Max/Min timeout. The meter will continue to track
new Max/Min readings. Press MENU to exit the Max/Min reading.
4. If Enter is not pressed, the Max/Min display reading will continue to
flash and time out after ten seconds. The meter will return to
display the actual reading.
5. Press Right arrow button while in Max/Min Mode to reset both Max
and Min. Max/Min display readings are reset to the current reading.
ENTER
MENU
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PD662 Loop-Powered 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:
1. Enter the Advanced features menu. See Advanced Features Menu,
page 20.
2. Press Up arrow button to display info menu.
3. Press RIGHT arrow button when info is shown.
4. Press ENTER button when rSt is shown.
Press Enter again when display flashes rSt.
Note: If Enter is not pressed a second time within three seconds,
rSt will stop flashing and the last ENTER press cancelled.
5. The meter goes through an initialization sequence (same as on
power-up), and loads the factory default settings.
Press and Hold for 5 Sec
FNc
Flashing
Display
info
rSt
rSt
Meter Re-
Initializes
Heater Operation
Models with the integrated heater option require no additional setup. All
heater operations are controlled automatically by the unit. An internal
temperature sensor controls the operation of the heater. The heater is
only on when required due to external temperatures.
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PD662 Loop-Powered 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
Decimal point
Scale
Number of Points
Input 1
Display 1
Input 2
Display 2
Advanced Features
Input Conditioning
Function
Filter
Dd.dd
SCL
NPT
in1
D1
in2
D2
Fnc
FIL
2 places
2
4.00 mA
4.00
20.00 mA
20.00
Linear
Off
27
PD662 Loop-Powered Meter Instruction Manual
MOUNTING DIMENSIONS
Figure 5. Case Dimensions – Front View
Figure 6. Case Dimensions – Side View
A: 3.15 in (80 mm) B: 4.33 in (110 mm) C: 2.44 in (62 mm)
D: 3.62 in (92 mm) E: 2.76 in (70 mm)
3.35 in (85 mm) with heater option
F: 0.79 in (20 mm); 1.38 in (35 mm) with heater option
28
PD662 Loop-Powered Meter Instruction Manual
I
H
Figure 7. Case Dimensions – Bottom View
G: 0.87 in (22 mm) H: 0.80 in (20 mm) I: 2.17 in (55 mm)
G
Figure 8. PDA6845 Pipe Mounting Kit
The PDA6845 pipe mounting kit may be used to mount a PD662 to a 2”
pipe. The kit includes an 8.20 in (208 mm) x 4.10 in (104 mm) mounting
panel with a 2” U-bolt and all necessary mounting hardware.
29
PD662 Loop-Powered 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
recommendations described below.
Troubleshooting Tips
Symptom Check/Action
No display or faint display
Rate display unsteady
Meter displays error message
during calibration (
Meter flashes
• 2999
• -1999
Display stuck flashing a number
HI or LO
and
Display response is too slow
If the display locks up or the meter
does not respond at all
Backlight does not appear.
Other symptoms not described
above
err)
1. Check connections.
2. Perform hard reset by temporarily
shorting S+ and S- terminals for a
few seconds.
Increase filter setting in
menu.
Check:
1. Signal connections
2. Minimum input span requirements
Check:
1. Input signal within scaled range of
2999 and -1999.
Press
Menu to exit Max/Min
display readings.
Check filter setting to see if it can be
lowered to
Perform hard reset by temporarily
shorting S+ and S- terminals for a few
seconds and then removing short.
Check:
1. Meter has a backlight installed.
2. Signal connections are as shown
Call Technical Support for
assistance.
LO or OFF.
in Figure
3 on page 12.
Advanced
30
PD662 Loop-Powered Meter Instruction Manual
QUICK USER INTERFACE REFERENCE GUIDE
Pushbutton Function
Menu Go to Programming Mode, leave Programming Mode, and Max/Min
Right Arrow Move to next digit or decimal point position. Reset Min/Max.
Up Arrow Move to next selection or increment digit. Go to Max/Min Mode.
Enter Accept selection/value and move to next selection.
Max/Min Mode
While in Run Mode, pressing Up Arrow will initiate Max/Min Mode. Up Arrow toggles
between Max & Min displays, and Right Arrow resets the Max/Min to the current
value. Press Menu or wait 10 seconds to return to Run Mode. Pressing Enter will
disable the 10 second timeout and continuously flash Max or Min.
Mode. Hold for 5 seconds to access Advanced Features.
Run Mode
Decimal
Scale
Calibrate
Display
Max/Min
in1
d1
in2
d2
Advanced
Features
Menu
in1
d1
in2
d2
Operational Modes
Hold
Menu
Menu
dd.dd
ddd.d
dddd
d.ddd
Run
Program
Press & hold Menu for 5
seconds to access Advanced
Features Menu
Function
Filter
Initial
Calibrate
Information
Up Arrow
Menu
*Factory
Defaul ts
*Access by pressing Right arrow tw ice
Max &
Min
Menu
31
PD662 Loop-Powered 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
• For the latest version of this manual please visit:
www.predig.com
SFT054 Ver 1.800 & up
LIM662_E
05/15
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