PRECISION DIGITAL ProVu Series Instruction Manual

PROVU PD6100 Strain Gauge, Load Cell & mV Meter
Instruction Manual
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USB Install
Strain Gauge
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15, 30, 150, 300 mV Unipolar Input Ranges
±15, ±25, ±150, ±250 mV Bipolar Input Ranges
Selectable 5 or 10 VDC @ 350 mA Maximum Sensor Excitation
Supports up to Twelve (12) 350 Ω Load Cells
Capture or Programmable Tare Feature
Auto-Zero Feature Eliminates Zero Drift
Ratiometric Operation
Max/Min or Peak/Valley Hold Feature
Display One Input in Two Different Scales (e.g. Weight & Volume)
Rounding Function 1, 2, 5, 10, 20, 50, or 100
Dual-Line Display
NEMA 4X and IP65 Rated Front Panel
UL Listed & CE Marked
Display Features 0.6" & 0.46" Digits
Six Full Digits on Each Line
Optional Superluminous Sunlight Readable Display
Free USB Programming Software & Cable
2 or 4 Relays + Isolated 4-20 mA Output Options
USB, RS-232, & RS-485 Serial Communication Options
External 4-Relay & Digital I/O Expansion Modules
Input Power Options Include 85-265 VAC or 12-24 VDC
Modbus® RTU Communication Protocol Standard
Precision Digital Corporation
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PROVU PD6100 Strain Gauge, Load Cell, & mV 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.
This product not recommended for life support
applications or applications where
Warning! 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
PROVU® and MeterView® Pro are registered trademarks of Precision Digital Corporation.
Modbus® is a Registered Trademark of Schneider Automation Inc. All other trademarks
mentioned in this document are the property of their respective owners.
© 2017 Precision Digital Corporation. All rights reserved.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Table of Contents
Table of Contents .................................................. 3
Table of Figures .................................................... 4
Introduction ........................................................... 4
Ordering Information ............................................ 5
Specifications ........................................................ 6
General ....................................................................... 6
Strain Gauge Input ...................................................... 7
Relays ......................................................................... 7
Isolated 4-20 mA Transmitter Output .......................... 8
Modbus® RTU Serial Communications ....................... 8
MeterView Pro............................................................. 8
Compliance Information ....................................... 9
Safety .......................................................................... 9
Electromagnetic Compatibility ..................................... 9
Safety Information............................................... 10
Installation ........................................................... 10
Unpacking ................................................................. 10
Panel Mounting Instructions ...................................... 10
Mounting Dimensions ............................................ 11
Sensor Excitation Voltage Selection (EX+, EX-) ....... 11
Connections .............................................................. 12
Connectors Labeling ............................................. 12
Power Connections ............................................... 12
Signal Connections ............................................... 13
Switch Configuration ............................................. 13
Shunt Calibration ................................................... 15
Modbus RTU Serial Communications ................... 16
Relay Connections ................................................ 16
Switching Inductive Loads ..................................... 16
4-20 mA Output Connections ................................ 17
Analog Output Power Supply ................................ 17
F4 Digital Input Connections ................................. 17
External Relays & Digital I/O Connections ............ 18
Interlock Relay Feature ......................................... 18
Setup and Programming .................................... 19
High Alarm Operation (Set > Reset) ...................... 33
Low Alarm Operation (Set < Reset) ....................... 33
High Alarm with Fail-Safe Operation (Set > Reset) 34
Low Alarm with Fail-Safe Operation (Set < Reset) 34
Pump Alternation Control Operation ...................... 34
Relay Sampling Operation ..................................... 35
Time Delay Operation ............................................ 35
Relay Operation Details ............................................. 36
Overview ................................................................ 36
Relays Auto Initialization ........................................ 36
Fail-Safe Operation ................................................ 36
Front Panel LEDs................................................... 36
Latching and Non-Latching Relay Operation ......... 37
Non-Latching Relay (Auto) .................................... 37
Non-Latching Relay (A-man) ............................... 37
Latching Relay (LatcH) .......................................... 37
Latching Relay (Lt-Clr) ........................................ 37
Acknowledging Relays ........................................... 38
Pump Alternation Control Applications (Altern) ... 38
Setting Up the Interlock Relay (Force On) Feature 40
Scaling the 4-20 mA Analog Output (Aout) ............... 40
Setting Up the Password (pass) ................................ 41
Protecting or Locking the Meter ............................. 41
Making Changes to a Password Protected Meter .. 41
Disabling Password Protection .............................. 41
Reset Menu (reset) .................................................. 42
Tare Menu (Tare) ...................................................... 42
Tare Functionality (tare) ....................................... 42
Control Menu (Contrl) .............................................. 42
Advanced Features Menu .......................................... 43
Advanced Features Menu & Display Messages..... 43
Noise Filter (filter).............................................. 44
Noise Filter Bypass (bypass) ................................. 44
Rounding Feature (round) ..................................... 44
Modbus RTU Serial Communications (serial) ..... 45
Select Menu (SElect) ............................................ 45
Signal Input Conditioning (Functn) ........................ 45
Auto-Zero (Auto 0) ................................................ 46
Low Cutoff (CutofF) .............................................. 46
Analog Output Programming (AoutPr) .................. 46
Programmable Function Keys User Menu (user) .. 47
Internal Source Calibration (ICAL) ......................... 48
Error Message (error) .......................................... 49
Front Panel Buttons and Status LED Indicators ........ 19
MeterView® Pro Software .......................................... 20
MeterView Pro Installation..................................... 20
Display Functions & Messages ................................. 21
Setting Numeric Values ............................................. 23
Main Menu ................................................................ 23
Setting Up the Meter (setup) .................................... 24
Setting the Input Signal (Input) ............................ 25 Meter Operation................................................... 50
Setting the Input Units (units) .............................. 26
Front Panel Buttons Operation .................................. 50
Setting the Input Units or Custom Tags (units) ... 27
Function Keys Operation ........................................... 50
Programming the Meter (prog) ............................. 28
Maximum/Minimum Readings .................................... 51
Calibrating the Meter with Strain Gauge/Load Cell
Troubleshooting .................................................. 52
(Cal) ...................................................................... 28
Diagnostics Menu (diag) ........................................... 52
Setting the Display Parameter & Intensity (dsplay)
Determining Software Version ............................... 52
.............................................................................. 30
Reset Meter to Factory Defaults ................................ 52
Setting the Relay Operation (relay) ......................... 31
Factory Defaults & User Settings ........................... 53
Setting the Relay Action ........................................ 32
Troubleshooting Tips (Including FAULT & ERROR
Programming Set and Reset Points ...................... 33
Messages)................................................................... 54
Setting Fail-Safe Operation ................................... 33 EU Declaration of Conformity ............................ 55
Programming Time Delay...................................... 33
Relay and Alarm Operation Diagrams ....................... 33
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Table of Figures
Figure 1. 1/8 DIN Panel Cutout Dimensions .............. 10
Figure 2. Panel Mounting Details ............................... 10
Figure 3. Meter Dimensions - Side View ................... 11
Figure 4. Meter Dimensions - Top View .................... 11
Figure 5. Sensor Excitation Voltage Selection ......... 11
Figure 6. Connector Labeling for Fully Loaded
PD6100 ................................................................. 12
Figure 7. Power Connections ..................................... 12
Figure 8. Strain Gauge Configuration Switch ........... 13
Figure 9. Strain Gauge Powered by Internal Supply 14
Figure 10. Strain Gauge Powered by External Supply
.............................................................................. 14
Figure 11. Multiple Strain Gauges Connected
Through Junction Box ........................................ 15
Figure 12. mV Transducer Input Connections .......... 15
Figure 13. Shunt Resistor ........................................... 15
Figure 14. Relay Connections ..................................... 16
Figure 15. AC and DC Loads Protection .................... 16
Figure 16. Low Voltage DC Loads Protection ........... 16
Figure 17. 4-20 mA Output Connections.................... 17
Figure 18. F4 Digital Input Connections .................... 17
Figure 19. Expansion Modules & DIN Rail Mounting
Kit .......................................................................... 18
Figure 20. External Relays Module Connections ...... 18
Figure 21. Digital I/O Module Connections ................ 18
Figure 22. Interlock Connections ............................... 18
Figure 23. Acknowledge Relays with Digital Input.... 38
Introduction
The PROVU® PD6100 is a multipurpose, easy-to-use digital strain gauge & load cell meter ideal for
weighing and force measurement applications. Its superluminous LED digits make it easily readable
in smoke, dust, fog, and, with the optional SunBright® display, even direct sunlight.
It accepts mV input signals up to 300 mV. With a max current of 350 mA at 10 V, it can support up
to twelve (12) 350 Ω load cells (minimum load resistance of 28 Ω), making it ideal for multipoint
weight measurement applications. The mV input can be scaled to display the process in two
different scales; for example, pounds on display line 1 and gallons on line 2. Three of the front panel
buttons can be custom-programmed for a specific operation.
The basic model includes an isolated 5 or 10VDC Sensor power supply that can be used to power
the input Sensor or 24 VDC for other devices. An additional isolated 24 VDC power supply is
included with the 4-20 mA output option. A digital input (F4) and micro USB port are standard on
the meter.
A fully loaded PD6100 meter has the following: four SPDT relays, 4-20 mA output, one 10 VDC
sensor excitation, and one 24 VDC power supply. The PD6100 capabilities may be enhanced by
adding the following external expansion modules: four SPST relays –creating an eight-relay process
meter, two digital I/O modules with four inputs and four outputs each, and RS-232 or RS-485
communication adapters.
The eight relays can be used for alarm indication or process control such as pump alternation
control. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O options
make the PD6100 an excellent addition to any system.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Ordering Information
Standard Models
85-265 VAC Model 12-24 VDC Model Options Installed
PD6100-6R0
PD6100-7R0
No options
PD6100-6R2
PD6100-7R2
2 relays (PD1102*)
PD6100-6R3
PD6100-7R3
4-20 mA output (PD1103*)
PD6100-6R4
PD6100-7R4
4 relays (PD1104*)
PD6100-6R5
PD6100-7R5
2 relays & 4-20 mA output (PD1105*)
PD6100-6R7
PD6100-7R7
4 relays & 4-20 mA output (PD1107*)
*Model number for replacement option card.
SunBright Display Models
85-265 VAC Model 12-24 VDC Model Options Installed
PD6100-6H0
PD6100-7H0
No options
PD6100-6H2
PD6100-7H2
2 relays (PD1102*)
PD6100-6H3
PD6100-7H3
4-20 mA output (PD1103*)
PD6100-6H4
PD6100-7H4
4 relays (PD1104*)
PD6100-6H5
PD6100-7H5
2 relays & 4-20 mA output (PD1105*)
PD6100-6H7
PD6100-7H7
4 relays & 4-20 mA output (PD1107*)
*Model number for replacement option card.
Accessories
Model
PDA1002
PDA1004
PDA1044
PDA1232
PDA1485
PDA7485-I
PDA7485-N
PDA8232-N
PDA8485-I
PDA8485-N
PDX6901
Description
DIN rail mounting kit for two expansion modules
4 SPST (Form A) relays
4 digital inputs & 4 digital outputs (2 may be connected)
RS-232 serial adapter
RS-485 serial adapter
RS-232 to RS-422/485 isolated converter
RS-232 to RS-422/485 non-isolated converter
USB to RS-232 non-isolated converter
USB to RS-422/485 isolated converter
USB to RS-422/485 non-isolated converter
Suppressor (snubber): 0.01 µF/470 , 250 VAC
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Specifications
Except where noted all specifications apply to operation at +25°C.
Power
General
Options
Display
Line 1: 0.60" (15 mm) high, red LEDs
Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999),
Fuse
with lead zero blanking
Display
Intensity
Eight user selectable intensity levels
Display
Update Rate
5/second (200 ms)
Overrange
Display flashes 999999
Underrange
Display flashes -99999
Display
Assignment
The displays may be assigned to
PV1, PV2, PCT, max & min, set
points, PV & units, units (lower
display only), net & gross weight,
Modbus input, and display millivolts.
Units
lb, kg, ounce, gram, ton, metric ton
(tonne), custom units.
Programming
Methods
Four front panel buttons, digital inputs,
PC and MeterView Pro software, or
Modbus registers.
Noise Filter
Programmable from 2 to 199 (0 will
disable filter)
Filter Bypass
Programmable from 0.1 to 99.9% of
calibrated span
Rounding
Select 1, 2, 5, 10, 20, 50, or 100
(e.g. rounding = 10, value = 123.45,
display = 123.50).
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
cycled.
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.
Non-Volatile
Memory
85-265 VAC 50/60 Hz, 90-265 VDC,
20 W max or 12-24 VDC  10%, 15 W
max. Powered over USB for
configuration only.
Required external fuse: UL
Recognized, 5 A max, slow blow; up
to 6 meters may share one 5 A fuse
Isolated
Terminals EX+ & EX-: 10 VDC or
Sensor Power 5 VDC  10%, rated @ 350 mA max.
Supply
Note: Do not use 24 VDC to power
strain gauge bridge.
Normal Mode
Rejection
Greater than 60 dB at 50/60 Hz
Isolation
4 kV input-to-power line
500 V input-to-output (powered by
external supply)
Overvoltage
Category
Installation Overvoltage Category II:
Local level with smaller transient
overvoltages than Installation
Overvoltage Category III.
Environmental Operating temperature range: 40 to 65°C
Storage temperature range: -40 to
85°C
Relative humidity: 0 to 90% noncondensing
Connections
Removable screw terminal blocks
accept 12 to 22 AWG wire, RJ45 for
external relays, digital I/O, and serial
communication adapters.
Enclosure
1/8 DIN, high impact plastic, UL 94V0, color: black
Mounting
1/8 DIN panel cutout required:
3.622" x 1.772" (92 mm x 45 mm)
Two panel mounting bracket
assemblies are provided.
Tightening
Torque
Screw terminal connectors: 5 lb-in
(0.56 Nm)
Overall
Dimensions
4.68" x 2.45" x 5.64" (119 mm x 62
mm x 143 mm)
(W x H x D)
Weight
9.5 oz (269 g)
Warranty
3 years parts & labor
All programmed settings are stored
in non-volatile memory for a
minimum of ten years if power is lost.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Strain Gauge Input
Relays
Inputs
Rating
2 or 4 SPDT (Form C) internal and/or
4 SPST (Form A) external; rated 3 A
@ 30 VDC and 125/250 VAC
resistive load; 1/14 HP (≈ 50 W) @
125/250 VAC for inductive loads
Minimum Load 14 Ω @ 5 V
Resistance
28 Ω @ 10 V
Noise
Suppression
Maximum
Excitation
Current
Temperature
Drift
Noise suppression is recommended
for each relay contact switching
inductive loads; see page 16 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)
Latching (requires manual
acknowledge)
Sampling (based on time)
Pump alternation control (2 to 8
relays)
Off (disable unused relays and
enable Interlock feature)
Manual on/off control mode
Relay Reset
User selectable via front panel
buttons or digital inputs
1. Automatic reset only (nonlatching), when the input passes
the reset point.
2. Automatic + manual reset at any
time (non-latching)
3. Manual reset only, at any time
(latching)
4. Manual reset only after alarm
condition has cleared (L)
Note: Front panel button or digital
input may be assigned to
acknowledge relays
programmed for manual reset.
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 nonalarm 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.
Accuracy
Functions
Multi-Point
Linearization
Field selectable: 0-15, 0-30, 0-150,
0-300 mV, ±15, ±25, ±150, ±250
mV, or Modbus PV (Slave)
±0.03% of calibrated span ±1 count
350 mA @ 5 V or 10 V
0.002% of calibrated span/C max
from 0 to 65C ambient,
0.005% of calibrated span/C max
from -30 to 0C ambient
Linear with multi-point linearization
2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale
feature)
0-999999 (0 disables cutoff function)
Low-Flow
Cutoff
Decimal Point Up to five decimal places or none:
d.ddddd, d.dddd, d.ddd, d.dd, d.d, or
dddddd
Calibration
Input
Minimum Span
Range
Range
Input 1 & Input 2
15 mV
0.2 mV
25 mV, 30 mV
0.4 mV
150 mV
2.0 mV
250 mV, 300 mV 4.0 mV
An Error message will appear if the
input 1 and input 2 signals are too
close together.
Input
Strain Gauge Bridge: Greater than
Impedance
10 MΩ
mV Source: 200 kΩ
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Isolated 4-20 mA Transmitter Output
Modbus® RTU Serial Communications
Output Source Process variable (PV), max, min, set
points 1-8, Modbus input, or manual
control mode
Slave ID
1 – 247 (Meter address)
Baud Rate
300 – 19,200 bps
Transmit
Time Delay
Programmable between 0 and 199
ms or transmitter always on for RS422 communication
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)
Scaling Range 1.000 to 23.000 mA for any display
range
Calibration
Factory calibrated: 0.00 to 100.00 =
4-20 mA output
Analog Output 1.000 mA minimum and 23.000 mA
Programming 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 65C
ambient,
0.8 µA/C max from -40 to 0C
ambient
Note: Analog output drift is separate
from input drift.
Isolated
Terminals I+ & R: 24 VDC  10%
Transmitter
isolated from the input at >500 V.
Power Supply May be used to power the 4-20 mA
output or other devices (except load
cell/strain gauge). Refer to Figure 6 on
page 12 and Figure 17 on page 17.
All models rated @ 40 mA max.
Note: Refer to the PROVU® Modbus Register Tables
MeterView Pro
System
Microsoft® Windows®
Requirements
XP/Vista/7/8/10
Communications USB 2.0 (Standard USB A to Micro
USB B)
Configuration
Configure meters one at a time
External Loop 35 VDC maximum
Power Supply
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC
10 
700 
35 VDC
(external)
100 
1200 
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Compliance Information
Safety
UL & c-UL Listed
UL File Number
Front Panel
Low Voltage
Directive
USA & Canada
UL 508 Industrial Control Equipment
E160849
UL Type 4X, NEMA 4X, IP65; panel gasket provided
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
Electromagnetic Compatibility
EN 55022:2010
Class A ITE emissions requirements
Radiated Emissions Class A
AC Mains Conducted Class A
Emissions
EN 61326-1:2013
IMMUNITY
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard
RFI - Amplitude
80 -1000 MHz 10 V/m 80% AM (1 kHz)
Modulated
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
±2kV AC mains, ±1kV other
Transients
Electrostatic
±4kV contact, ±8kV air
Discharge
RFI - Conducted
10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge
±2kV Common, ±1kV Differential
Surge
1KV (CM)
Power-Frequency
30 A/m 70%V for 0.5 period
Magnetic Field
Voltage Dips
40%V for 5 & 50 periods
70%V for 25 periods
Voltage Interruptions <5%V for 250 periods
EMISSIONS
Note:
Testing was conducted on PD6100 meters installed through the covers of grounded metal enclosures
with cable shields grounded at the point of entry representing installations designed to optimize EMC
performance.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Safety Information
!
CAUTION: Read complete
instructions prior to installation
and operation of the meter.
WARNING: Risk of electric
shock or personal injury.
Hazardous voltages exist within enclosure.
Installation and service should be performed
only by trained service personnel.
WARNING!
Installation
There is no need to remove the meter from its case to complete the installation, wiring, and setup
of the meter for most applications.
Instructions are provided for changing the sensor power supply to output 5 or 10 VDC instead of
24 VDC on page 11.
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.
Panel Mounting Instructions






Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x 45 mm). Refer to Figure below,
for more details.
Clearance: allow at least 6.0" (152 mm) behind the panel for wiring.
Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).
Recommended minimum panel thickness to maintain Type 4X
rating: 0.06" (1.5 mm) steel panel, 0.16" (4.1 mm) plastic panel.
Remove the two mounting brackets provided with the meter (back-off the two screws so that there is ¼"
(6.4 mm) or less through the bracket. Slide the bracket toward the front of the case and remove).
Insert meter into the panel cutout.
Install mounting brackets and tighten the screws against the panel. To achieve a proper seal, tighten
the mounting bracket screws evenly until meter is snug to the panel along its short side. DO NOT
OVER TIGHTEN, as the rear of the panel may be damaged.
A
3.622" (92 mm)
Square Corners to 0.060"
(1.5mm) Max Radius
B 1.772"
Panel Cutout
to DIN 43700
(45mm)
Tolerances:
A: +0.032 (+0.8mm)
-0.000 (-0.0mm)
B: +0.024 (+0.6mm)
-0.000 (-0.0mm)
Figure 1. 1/8 DIN Panel Cutout
Dimensions
Figure 2. Panel Mounting Details
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Mounting Dimensions
NO NC C NO NC C
NO NC C NO NC C
-
+
R
Figure 3. Meter Dimensions - Side View
Figure 4. Meter Dimensions - Top View
Sensor Excitation Voltage Selection (EX+, EX-)
All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory
configured to provide 10 VDC excitation for the sensor.
If the sensor requires 5 VDC excitation, the internal jumper J3 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 ½ inches.
4. Configure the J3 jumper, located behind the input signal connector, for the desired excitation
voltage as shown.
!
Caution!
Do not use 24V to power a strain gauge bridge. The
24 V jumper configuration should only be used for mV
input applications from 4 wire sensors.
Jumper Configuration
5V
10 V
MAIN BOARD
24 V
INPUT
SIGNAL
J3
Factory Default
24V
10V
No jumper should
J4
be appied to J4 5V 10V
EXSG+
SGEX+
COM
F4
Figure 5. Sensor Excitation Voltage Selection
11
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Connections
All connections are made to removable screw terminal connectors located at the rear of the meter.
!
Caution!
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.
Connectors Labeling
The connectors’ label, affixed to the meter, shows the location of all connectors available with requested
configuration.
Do not connect any equipment other than Precision Digital’s
expansion modules, cables, or meters to the RJ45 M-LINK connector.
Warning! Otherwise damage will occur to the equipment and the meter.
SG- SG+
Figure 6. Connector Labeling for Fully Loaded PD6100
Power Connections
Power connections are made to a two-terminal connector labeled
POWER on Figure 6. The meter will operate regardless of DC polarity connection. The + and - symbols are
only a suggested wiring convention.
POWER
+
-
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
Figure 7. Power Connections
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 6. The EX+ and EXterminals are used to sense the sensor excitation voltage for ratiometric operation, when the sensor is
powered externally (switch 1 is off).
Switch Configuration
Setup and programming is performed both through the front panel buttons and switch settings shown below.
The switch configuration must correspond to the setup and programming starting on page 29 (same range,
type, etc.).
3
4
SG- SG+
Figure 8. Strain Gauge Configuration Switch
Excitation (Switch 1)
The excitation switch designates whether the meter will use its internal power supply or an external power
supply.
ON
Excitation
Internal Excitation
When switch is turned ON, the ProVu's
power supply is used.
OFF
Excitation
External Excitation
When switch is turned OFF, an external
power supply is used.
Switch 1
Range (Switch 2)
The range switch adjusts the gain of the internal circuitry. Narrower ranges require more amplification.
ON
Range
Higher internal gain
Turn this switch ON for the following input
ranges: 15, 30, ±15, or ±25 mV.
OFF
Range
Lower internal gain
Turn this switch OFF for the following input
ranges: 150, 300, ±150, or ±250 mV.
Switch 2
Polarity (Switch 3)
The polarity switch selects whether the range is unipolar and starts at zero (i.e. 0 to 30 mV) or bipolar and
starts at a negative value, or below zero (i.e. -15 to +15 mV).
ON
Polarity
Range starts at
zero (unipolar)
Turn this switch ON for the following input
ranges: 15, 30, 150, or 300.
OFF
Polarity
Range starts below
zero (bipolar)
Turn this switch OFF for the following input
ranges: ±15, ±25, ±150, or ±250 mV.
Switch 3
Source (Switch 4)
The source switch tells the ProVu whether the input is a strain gauge bridge (i.e. Figure 11), or it is a
signal from a 2 or 4 wire transducer, or mV source (i.e. Figure 12)
ON
Source
Source is mV input
transducer
Turn this switch ON if the connected
source is a transducer*
OFF
Source
Source is strain
gauge bridge
Turn this switch OFF if the source is a
strain gauge bridge
Switch 4
*Ratio should be set to NO in Setup Input Menu
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Shunt Resistor (Switch 5)
The PD6100 provides a means of simulating strain in a strain gauge bridge circuit via a 60.4KΩ shunt
resistor included in the meter. This will simulate an approximate 70% full-scale load in the case of a 350Ω
strain bridge.
ON
Shunt
Shunt resistor is connected to
the input bridge.
Turn switch ON when you want
to simulate a strain load
OFF
Shunt
Shunt resistor is disconnected
from the input bridge.
Turn this switch OFF to remove
the shunt resistor
Switch 5
Strain Gauge Connections
The following figures show examples of strain gauge connections.
There is a 5-position DIP switch (CONFIG) to set up the input ranges and ratiometric operation.
NOTE: Refer to Switch Configuration starting on page 13 for proper configuration switch
positioning.
INPUT SIGNAL
F4
COM
EX+
SG-
SG+
EX-
1
2
3
4
5
6
EX+
SG-
SG+
EX-
Figure 9. Strain Gauge Powered by Internal Supply
INPUT SIGNAL
F4
1
COM EX+
2
SG-
3
4
SG+
5
EX+
SG-
SG+
EX6
+
5-10 VDC
Power
Supply
-
EX-
Figure 10. Strain Gauge Powered by External Supply
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
NOTE: Refer to Switch Configuration starting on page 13 for proper switch positioning for the
following wiring configurations.
When connecting multiple strain gauges to the meter, each must be wired in parallel. This is typically
done with the use of a junction box.
INPUT SIGNAL
SG-
COM EX+
F4
1
2
3
4
SG+ EX5
6
Junction Box
Up to 12
EX+
EX+
EX+
Load Cells
SG-
SG+
SG-
SG-
SG+
EX-
SG+
EX-
EX-
Figure 11. Multiple Strain Gauges Connected Through Junction Box
INPUT SIGNAL
F4
COM
EX+
SG-
SG+
EX-
1
2
3
4
5
6
1
2
3
4
5
ON
CONFIG
EX+
SG-
Notes
 Two-wire mV signals: Connect positive
to SG+ and negative to SG Four-wire transducer: Connect EX- to
negative power transducer terminal.
SG+
3-Wire 100 mV
Transducer
Figure 12. mV Transducer Input Connections
Shunt Calibration
The PD6100 is equipped with a means of simulating strain in a strain gauge bridge circuit, via an included
shunt resistor in the meter. This technique is performed by enabling the “shunt resistor” switch (switch 5),
which in turn shunts one leg of a connected strain bridge with a predetermined resistive load (60.4k). This
technique can be used as a means of verifying instrumentation by simulating a physical input. With no
load connected, the enabling of the shunt resistor (switch 5) will simulate approximately a 70% F.S. load
in the case of a 350Ω Strain Bridge.
EX+
SG-
SG+
EX-
Figure 13. Shunt Resistor
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Modbus RTU Serial Communications
Serial communications connection is made to an RJ45 connector labeled M-LINK on Figure 6. Use the
PDA1232 for RS-232 interfacing or the PDA1485 for RS-485 interfacing. The same port is used for
interfacing with all expansion modules (e.g. external relays, digital I/O).
Relay Connections
Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4 on Figure 6.
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.
RELAY4
RELAY3
RELAY2
RELAY1
6
5
4
3
2
1
6
5
4
3
2
1
NO
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
Figure 14. Relay Connections
Switching Inductive Loads
The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent
disrupting the microprocessor’s operation. The suppressors 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:
C
C
R
R
Figure 15. 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 16. Low Voltage DC Loads Protection
RC Networks 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.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
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.
24 V
24 V
MA OUT
MA OUT
RELAY1
I-
I+
R
RELAY1
I-
I+
R
3
3
2
1
3
3
2
1
2
1
+
-
2
+
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
1
-
- +
4-20 mA
Input Meter
12-35 VDC
Power
Supply
Figure 17. 4-20 mA Output Connections
Analog Output Power Supply
If the analog output is not using the 24 VDC supply to power the output loop, it can be used for other
things. The I+ Terminal is the +24 V and the R terminal is the return.
F4 Digital Input Connections
A digital input, F4, is standard on the meter. This digital input is connected with a normally open contact
across F4 and COM, or with an active low signal applied to the F4.
The functionality of the F4 input is set up in the Advanced Features, User menu.
INPUT SIGNAL
F4
1
COM EX+
2
3
SG4
SG+ EX5
6
Figure 18. F4 Digital Input Connections
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
External Relays & Digital I/O Connections
The relay and the digital I/O expansion modules PDA1004 & PDA1044 are connected to the meter using
a CAT5 cable provided with each module. The two RJ45 connectors on the expansion modules are
identical and interchangeable; they are used to connect additional modules to the system.
Note: The jumper located between the RJ45 connectors of the PDA1044 must be removed on the second
digital I/O module in order for the system to recognize it as module #2.
Do not connect or disconnect the expansion
modules with the power on!
More detailed instructions are provided with
Warning! each optional expansion module.
RLY5
RLY6
RLY7
RLY8
1
2
3
4
5
6
7
8
NO
C
NO
C
NO
C
NO
C
Figure 19. Expansion Modules & DIN Rail
Mounting Kit
Figure 20. External Relays Module
Connections
1
2
3
4
5
6
7
8
9
10
+5
I1
I2
I3
I4
O1
O2
O3
O4
G
5 VDC
DI 1-4
DO 1-4
GND
Figure 21. Digital I/O Module Connections
Interlock Relay Feature
As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as
interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This
feature is enabled by configuring the relay, and relative digital input(s) (see page 40). In one example, dry
interlock contacts are connected in series to one digital input which will be used to force on (energize) the
assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front
panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O
contact). See below.
Figure 22. Interlock Connections
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Setup and Programming
The meter is factory calibrated prior to shipment
to read in millivolts. The calibration equipment is
certified to NIST standards.
Overview
There is a 5-position DIP switch to set the meter input selection. See Figure 8 on page 13 to setup the
switch.
Setup and programming is done through the front panel buttons.
After power and input signal connections have been completed and verified, apply power to the meter.
Front Panel Buttons and Status LED Indicators
Button
Symbol
Description
LED
Status
Menu
1-8
Alarm 1-8 indicator
Right arrow/F1
Zero Meter
Up arrow/F2
Reset Tare
Enter/F3
Tare
1-8
M
T
G
Flashing: Relay in
manual control mode
Flashing: Tare (Net)
Gross
Flashing: Relay
interlock switch open
Note:
Alarms 5-8 are enabled
when relay expansion
module is installed.





1-4
Note:
LEDs for relays in manual
mode flash with the “M” LED
every 10 seconds.
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.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
MeterView® Pro Software
The meter can also be programmed using the PC-based MeterView Pro software included with the meter.
This software can be installed on any Microsoft® Windows® (XP/Vista/7/8/10) computer by connecting
the meter’s onboard USB. The meter is powered by the USB connection, so there is no need to wire
anything prior to programming the meter, though USB is intended only for meter configuration.
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.
Only one meter may be connected at a time.
Attaching multiple meters will cause a
conflict with the meter software.
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 doubleclick 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 onscreen 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 onscreen
notification once the process is complete.
Warning!
Data logging for one meter at a time is available with MeterView Pro software. More advanced data
acquisition may be accomplished by using any Modbus RTU compliant software. Additional information
regarding configuration and monitoring of the meter using MeterView Pro software is available online.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
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
Description
setup
Setup
Enter Setup menu
Input
Input
Polar
uni
bi
Polar
Unipolar
Bipolar
Parameter
Action/Setting
Description
SCAL 1
Scale 1
Enter Input selection
menu
Enter the Scale menu
for PV1
SCAL 2
Scale 2
Enter unipolar or
bipolar selection menu
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
Line 1
Press Enter to assign
the upper display
parameter (default:
PV)
Line 2
Line 2
Press Enter to assign
the lower display
parameter (default:
engineering units)
d-Inty
Display
intensity
Set display intensity
level from 1 to 8
Relay
Enter the Relay menu
RLY 1
Relay 1
Relay 1 setup
Act 1
Action 1
Set relay 1 action
Auto
Automatic
Set relay for automatic
reset
A-nman
Automanual
Set relay for automatic
& manual reset any
time
LatCH
Latching
Set relay for latching
operation
Press Enter to select
operation with positive
signals only (e.g. 0-30
mV)
Press Enter to select
operation with positive
& negative signals
(e.g. ±15 mV)
range
Range
Enter range selection
menu
15 mv
15 mV
Set meter for 15 mV
input (uni/bi)
25 mv
25 mV
Set meter for ±25 mV
input (bi)
30 mv
30 mV
Set meter for 30 mV
input (uni)
150mv
150 mV
Set meter for 150 mV
input (uni/bi)
250mv
250 mV
Set meter for ±250 mV
input (bi)
300mv
300 mV
Set meter for 300 mV
input (uni)
ratio
Ratiometric
Press Enter to select
ratiometric operation to
compensate for
excitation changes.
d-SCAL
Dual-Scale
Press Enter to select
dual-scale display
(Select Yes or No)
units
Units
Select the display
units/tags
Dec pt
Decimal
point
Set decimal point
Pv 1
PV1
PV1 decimal point
(dual-scale)
Pv 2
PV2
PV2 decimal point
(dual-scale)
Program
Enter the Program
menu
Scale
Enter the Scale menu
prog
SCALE
Display
RELaY
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Display
Lt-CLr
Parameter
Action/Setting
Description
Latchingcleared
Set relay for latching
operation with manual
reset only after alarm
condition has cleared
Altern
Alternate
Set relay for
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
RLY 2
Relay 2
Relays 2-8 setup
Note: Relays 5-8 are
shown, only if
expansion relay
module is installed.
FaiLSF
Fail-safe
Enter Fail-safe menu
FLS 1
Fail-safe 1
Set relay 1 fail-safe
operation
on
On
Enable fail-safe
operation
FLS 2
Fail-safe 2
Set relays 2-8 fail-safe
operation
Parameter
Action/Setting
Description
Dis 2
Display 2
Program display 2
value
Out 2
Output 2
Program output 2
value (e.g. 20.000 mA)
Reset
Press Enter to access
the Reset menu
Rst Hi
Reset high
Press Enter to reset
max display
Rst Lo
Reset low
Press Enter to reset
min display
Rst HL
Reset
high & low
Press Enter to reset
max & min displays
Rst tr
Reset tare
Press Enter to reset
tare
Tare
Enter Tare menu
Captur
Capture
Press Enter to set
meter to capture tare
using the Tare button
Prog T
Programma
ble
Press Enter to set
meter to
programmable tare
and enter a value
Off
Off
Press Enter to disable
the tare function
Contrl
Control
Enter Control menu
Display
reset
tare
DeLAY
Delay
Enter relay Time Delay
menu
Auto
Automatic
Press Enter to set meter
for automatic operation
DLY 1
Delay 1
Enter relay 1 time
delay setup
nmAn
Manual
Press Enter to manually
control relays or analog
output operation
On 1
On 1
Set relay 1 On time
delay
Password
Enter the Password
menu
OFF 1
Off 1
Set relay 1 Off time
delay
Pass 1
Password 1
Set or enter Password 1
DLY 2
Delay 2
Enter relays 2-8 time
delay setup
Pass 2
Password 2
Set or enter Password 2
Pass 3
Password 3
Set or enter Password 3
Analog
output
Enter the Analog
output scaling menu
unloc
Unlocked
Program password to
lock meter
Dis 1
Display 1
Program display 1
value
locd
Locked
Enter password to
unlock meter
Out 1
Output 1
Program output 1
value (e.g. 4.000 mA)
999999
-99999
Flashing
Over/under range
condition
Aout
pass
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PROVU PD6100 Strain Gauge, Load Cell, & mV 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 value.
The digit being changed is displayed brighter than the rest.
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.
004.000
004.000
dis 1
Select
Next
Digit
dis 1
005.000
Increment
Digital
Value
dis 1
Accept
Setting
Next
Setting
Main Menu
The main menu consists of the most commonly used functions: Setup, Reset, Tare, 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.
The display moves to the next menu every time a setting is accepted by pressing Enter.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Setting Up the Meter (setup)
The Setup menu is used to select:
1. Unipolar (e.g. 0-30 mV) or bipolar (e.g. ±25 mV) polarity, input range, ratiometric operation, and
dual-scale feature
2. Engineering units
3. Decimal point position
4. Program scaling or live calibration
5. Display parameter and intensity
6. Relay operation
7. 4-20 mA analog output scaling
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Setting the Input Signal (Input)
Enter the Input menu to set up the input polarity, range, ratiometric operation, and dual-scale feature.
The meter is capable of accepting any signal from -250 to 250 mV in bipolar mode or up to 300 mV in
unipolar mode.
After selecting “Yes” or “No” for ratio, d-SCAL is displayed. Selecting “Yes” enables the dual-scale
feature, allowing scaling of the same input in two different scales (for PV1 & PV2) or displaying the
percentage of PV1.
If Polarity (polar)
Set to Bi (bi)
Input Polarity Selection (PoLAR)
Select unipolar operation for inputs in ranges from 0 to 300 mV and select bipolar operation for inputs in
ranges from -250 mV to +250 mV. This setting determines the selectable ranges for the millivolt input.
NOTE: Refer to Switch Configuration starting on page 13 for proper switch positioning.
Range Selection (RANGE)
This menu is used to select the input range. The selections listed are determined by the Polarity setting.
Unipolar mode:
0-15, 0-30, 0-150, 0-300 mV
Bipolar mode:
±15, ±25, ±150, ±250 mV
NOTE: Refer to Switch Configuration starting on page 13 for proper switch positioning.
Ratiometric Operation (ratio)
Ratiometric operation corrects the measured strain gauge signal for up to ±5% variation of either the
internal or external excitation power supply. In order to use the ratiometric operation, the ratiometric
operation menu must be set to yes (YES).
Dual-Scale (d-sCal)
The analog input can be displayed in two different scales, by enabling the dual-scale feature in the SetupInput menu, see page 25.
To enable the dual-scale feature you must select d-SCAL in the Input selection menu.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Setting the Input Units (units)
Enter the pre-defined engineering unit or custom unit. The pre-defined units have automatic conversion
factors. This unit will be displayed if d unit is selected as the lower display parameter. See the flow
chart on page 30 to access the display menu to show the unit on the lower display.
The custom unit may also be used to enter a display tag.
Pre-defined engineering units: lb, kg, ounce, gram, ton (short), tonne (metric ton). The meter converts
the reading according to the unit selected (e.g. 100.00 lb = 45.36 kg = 45359.2 g = 1600 oz).
Unit Conversions: After scaling values in the Scale menu have been entered during setup, automatic
unit conversions are done when switching from any standard unit to any other standard unit during future
changes of the Units menu.
Once a standard unit has been selected in the units menu, the user must then set their scaling values for
that unit (under the setup menu) in order for that unit's conversion factor to take effect. Otherwise, the
meter will allow the user to freely switch between standard unit selections, without applying a conversion
factor.
Note that if the dual-scale feature is selected in the Setup menu, both PV1 and PV2 will be converted
from the original standard unit to the new standard unit. A scaled PV not scaled for the selected units
must be reprogrammed. Example: If PV 1 is scaled for pounds, and PV 2 scaled for gallons; if the Units
selection is changed from Lb to ounce, PV 2 will need to re-scaled manually back to gallons.
Kg
Note: PV1 and PV2 may use different standard units as starting points, however the user must select the
unit and complete scaling for both PV1 and PV2 individually. For example, set PV1 equal to "Lbs" and
complete the scaling for PV1 only. PV1 is now reading in Lbs. Then, change the units for PV2 to be "Kg"
and complete the scaling for PV2. PV2 will read in kilograms and PV1 will reflect the conversion from Lbs
to Kgs.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Setting the Input Units or Custom Tags (units)
Enter the input unit or custom tag that will be displayed if units are selected in the units menu, or d
unit is selected as the lower display parameter. See the flow chart on page 30 to access the display
menu to show the unit or tag on the lower display. The engineering units or custom legends can be set
using the following 7-segment character set:
Display
Character
Display
0
1
2
3
4
5
6
7
8
9
A
b
0
C
c
d
e
f
g
9
H
h
I
I
j
1
2
3
4
5
6
7
8
9
A
b
Character
C
c
d
E
F
G
g
H
h
I
i
J
Display
k
l
nm
n
O
o
p
q
r
s
t
u
Character
K
L
m
n
O
o
P
q
r
S
t
u
Display
v
uw
x
y
z
/
[
]
=
!
Character
V
w
X
Y
Z
/
]
[
=
Degree(<)
Space
Notes: Degree symbol represented by (<) if programming with MeterView® Pro. The letters “m” and “w”
use two 7-segment LEDs each; when selected the characters to the right are shifted one position.
Press and hold up arrow to auto-scroll the characters in the display.
Setting the Decimal Point (dEc pt)
The decimal point may be set with up to five decimal places or with no decimal point at all.
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 to the left.
If the dual-scale feature is selected, the decimal point selections for PV1 & PV2 are enabled.
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Programming the Meter (prog)
The Program menu contains the Scale and the Calibrate menus.
For strain gauge and load cell applications it is recommended to calibrate the meter using the sensor as
the input and with ratiometric operation enabled to compensate for small variation in the excitation
voltage.
It is very important to read the following information, before proceeding to program the meter:
 The meter is factory calibrated prior to shipment to read in millivolts. The calibration equipment is
certified to NIST standards.
 Use the Scale menu to scale the input (e.g. 0-100 mV). A calibrated signal source is not needed to
scale the meter.
 The PD6100 is a single input meter with dual-scale capability.
If the dual-scale feature is selected in the Setup menu, the Scale 1 and Scale 2 menus are enabled for
PV1 & PV2 respectively.
The process inputs may be calibrated or scaled to any display value within the range of the meter.
Program Menu for Single Scale Process
Program Menu for Dual-Scale Applications
Additional parameters, not needed for most applications, are programmed in the Advanced Features
menu; see Advanced Features Menu, page 43.
Calibrating the Meter with Strain Gauge/Load Cell (Cal)
To scale the meter without a signal source, refer to
Scaling the Meter (SCALE), page 29.
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.
The display flashes
while sensing
the inputs
Warm up the meter for at
least 15 minutes before
performing calibration to
ensure specified accuracy.
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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 page 46 for details.
Scaling the Meter (SCALE)
The strain gauge input (e.g. 0-100 mV) 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.
For instructions on how to program
numeric values see Setting Numeric
Values, page 23.
Dual-Scale Application
The analog input can be displayed in two different scales, by enabling the dual-scale feature in the Setup Input menu,
see page 25.
To enable the dual-scale feature you must select it 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 input 2 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.
Input Range
Input 1 & Input 2 Span
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.
15 mV
25 mV, 30 mV
150 mV
250 mV, 300 mV
0.2 mV
0.4 mV
2.0 mV
4.0 mV
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Setting the Display Parameter & Intensity (dsplay)
Display line 1 (line 1) can be
programmed to display:
1. Process value 1 (PV1)
2. Process value 2 (PV2)
3. Percent of PV1 (PCt)
4. Relay set points
5. Toggle process value & units
6. Max & min values
7. Gross value
8. Toggle net & gross values
9. Input millivolts
10. Modbus input
Display line 2 (line 2) can be
programmed to display:
1. Engineering units or custom
legends
2. Process value 1 (PV1)
3. Process value 2 (PV2)
4. Percent of PV1 (PCt)
5. Relay set points
6. Toggle process value & units
7. Max & min values
8. Gross value
9. Toggle net & gross values
10. Input millivolts
11. Modbus input
12. Off (no display)
Display Intensity: 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 setting is 8.
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Setting the Relay Operation (relay)
This menu is used to set up the operation of the relays.
!
Caution!
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)
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Setting the Relay Action
Operation of the relays is programmed in the Action menu.
The relays may be set up for any of the following modes of
operation:
1. Automatic reset (non-latching)
2. Automatic + manual reset at any time (non-latching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after alarm condition has cleared)
5. Pump alternation control (automatic reset only)
6. Sampling (the relay is activated for a user-specified time)
7. Off (relay state controlled by Interlock feature)
The following graphic shows relay 1 action setup; relay 2-8 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 and Alarm Operation Diagrams
The following graphs illustrate the operation of the relays, status LEDs, and ACK button.
High Alarm Operation (Set > Reset)
Low Alarm Operation (Set < Reset)
For Manual reset mode, ACK can be pressed
anytime to turn "off" relay. To detect a new alarm
condition, the signal must go below the set point,
and then go above it.
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.
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High Alarm with Fail-Safe
Operation (Set > Reset)
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.
Pump Alternation Control Operation
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Relay Sampling Operation
Input
Set
Reset
Sample
Time
Sample
Time
Sample
Time
Relay
LED
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.
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-mAn)” reset mode is selected, the LED follows the reset point and not
the relay state when the relay is acknowledged.
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Relay Operation Details
Overview
The relay capabilities of the meter expand its usefulness beyond simple indication to provide users with
alarm and control functions. These capabilities include front panel alarm status LEDs as well as either 2
or 4 optional internal relays and/or 4 external relays expansion module. Typical applications include high
or low force, level, or pressure alarms, control applications such as simple on/off control, and relay
alternation control for up to 8 pumps. There are four basic ways the relays can be used:
1. High or Low Alarms with Latching or Non-Latching Relays
2. Simple On/Off Control with 100% Adjustable Deadband
3. Sampling (Based on Time)
4. Alternation Control for up to 8 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.
Alarm #
1
2
3
4
HI or LO
Alarm
HI
LO
LO
HI
Set
Point
1000
700
250
450
Reset
Point
500
900
400
200
Power-Up
Reading
499
499
499
499
Relay
& LED
Off
On
Off
On
Fail-Safe Operation
The following table indicates how the relays behave based on the fail-safe selection for each relay:
Fail-Safe
Selection
Off
Non-Alarm State
Alarm State
NO
Open
NO
Closed
NC
Closed
Power Failure
NC
Open
Relays go to
non-alarm 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 LEDs on the front panel provide status indication for the
following:
LED
1
2
3
4
Status
Alarm 1
Alarm 2
Alarm 3
Alarm 4
LED
5
6
7
8
Status
Alarm 5
Alarm 6
Alarm 7
Alarm 8
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).
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Latching and Non-Latching Relay Operation
The relays can be set up for latching (manual reset) or
non-latching (automatic reset) operation.
The On and Off terminology does not refer to the status of
the relay’s coil, which depends on the fail-safe mode
selected.
Warning!
Relay terminology for following tables
Terminology
Relay Condition
On
Alarm (Tripped)
Off
Normal (Reset)
Ack
Acknowledged
In latching relay mode, latched relays will reset
(unlatch) when power is cycled.
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.
Automatic reset only
Condition
LED
Relay
Normal
Off
Off
Alarm
On
On
Ack (No effect)
On
On
Normal
Off
Off
Non-Latching Relay (A-man)
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.
The next time an alarm occurs, the operator acknowledges
the alarm manually while the alarm condition still exists.
This causes the relay to reset, but the LED stays 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 (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
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Acknowledging Relays
There are two ways to acknowledge relays programmed for manual reset:
1. Via the programmable front panel function keys F1-F3 (Assignable via the User menu inside the
Advanced Features menu.
2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V
terminals on the digital I/O modules, or using the F4 digital input (factory default setting), which is
triggered with a contact closure to COM, or with an active low signal (see page 17).
When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are
acknowledged.
Note: The function key and digital input assignment is changed in the Advanced – User menu.
PDA1044 Digital I/O Module
1
+5
2
3
4
5
6
7
8
9
10
I1
I2
I3
I4
O1
O2
O3
O4
G
DI 1-4
DO 1-4
GND
ACK
Figure 23. Acknowledge Relays with Digital Input
Pump Alternation Control Applications (Altern)
For pump control applications where two or more similar pumps are used to control the level of a tank, 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 8 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.
2.
Relays 1 and 2 are set up for pump alternation.
Relays 3 and 4 are set up for low and high alarm indication.
Set and Reset Point Programming
Relay
Set Point
Reset Point
Function
1
30.000
10.000
Controls pump #1
2
35.000
5.000
Controls pump #2
3
4.000
9.000
Controls low alarm
4
40.000
29.000
Controls high alarm
Pump Alternation Operation
1. Pump #1 turns on when level reaches 30.000, when level drops below 10.000 pump #1 turns off.
2. The next time level reaches 30.000, pump #2 turns on, when level drops below 10.000 pump #2 turns
off.
3. If the level doesn’t reach 35.000 pump #1 and pump #2 will be operating alternately.
4. If pump #1 cannot keep the level below 35.000 pump #2 will turn on at 35.000, then as the level drops
to 10.000 pump #1 turns off, pump #2 is still running and shuts off below 5.000.
5. Notice that with the set and reset points of pump #2 outside the range of pump #1, the first pump on
is the first pump to go off. This is true for up to 8 alternating pumps, if setup accordingly.
6. Relay #3 will go into alarm if the level drops below 4.000 and relay #4 will go into alarm if the level
exceeds 40.000.
7. Adding the 4 external relays expansion module allows using the 4 SPDT internal relays for pump
alternation and the 4 SPST external relays for high, high-high, low, and low-low alarm indication.
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Application #2: Pump Alternation Using Relays 3 & 4
1. Relays 1 and 2 are set up for low and high alarm indication.
2. Relays 3 and 4 are set up for pump alternation.
Set and Reset Point Programming
Relay
Set Point Reset Point Function
1
495
750 Controls low alarm
2
7500
6900 Controls high alarm
3
7000
900 Controls backup pump
4
6000
1000 Controls main pump
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 6000
1
gallons and turns it off at 1000 gallons.
MENU
F1
6000
F2
F3
Strain Gauge Signal
2. With the Pump Alternation feature activated,
the next time the level reaches 6000 gallons,
relay #3 transfers and starts the backup
pump.
Load Cell
2
MENU
F1
6000
3
F2
F3
Strain Gauge Signal
3. If the backup pump is not able to keep up,
and the level reaches 7000 gallons, relay #4
transfers and starts the main pump as well.
Load Cell
3
MENU
7000
F1
34
F2
F3
Strain Gauge Signal
4. Relay #2 trips the High Level Alarm at 7500
gallons and resets at 6900 gallons.
Load Cell
4
MENU
7500
F1
23 4
F2
6900
F3
Strain Gauge Signal
5. Relay #1 trips the Low Level Alarm at 495
gallons and resets at 750 gallons.
Load Cell
5
MENU
F1
1
4
F2
750
F3
495
Strain Gauge Signal
Load Cell
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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.
SW2
SW1
1
2
3
4
5
6
7
8
9
10
+5
I1
I2
I3
I4
O1
O2
O3
O4
G
5 VDC
DI 1-4
DO 1-4
GND
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front panel LEDs are off) 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 restart only after the interlock relay is re-activated by the digital inputs (switches).
Scaling the 4-20 mA Analog Output (Aout)
The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected.
No equipment is needed to scale the analog output; simply program the display values to the
corresponding mA output signal.
The Analog Output menu is used to program the 4-20 mA output based on display values.
For instructions on how to program
numeric values see Setting Numeric
Values, page 23.
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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, page 23.
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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Reset Menu (reset)
The Reset menu is used to reset the tare (rst tr) and the maximum or minimum readings (peak or
valley) reached by the process; max & min may be reset at the same time by selecting “reset high & low”
(rst HL).
Note: Resetting the tare resets the max & min readings.
Tare Menu (Tare)
The Tare menu is used to select the tare mode. There are three modes of operation: Capture Tare,
Programmable Tare, and Off.
Capture Tare: Pressing the Tare key zeroes the display and the “T” indicator flashes indicating that tare
is applied to the reading (e.g. Net weight).
Programmable Tare: Program a known value to be subtracted from the display value to obtain the net
value. Pressing Reset tare clears the tare value to zero. Programmable Tare will not tare negative PVs.
Use Capture Tare for negative PVs.
Off: Tare function is disabled and pressing Tare key has no effect.
Tare Functionality (tare)
The tare function zeroes out the display. In the case of scale weight, tare is used to eliminate container
weight and provide net weight readings.
0.2
lbs
0.0
0.2
lbs
Before tare
lbs
After capture tare
After reset tare
Control Menu (Contrl)
The 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.
Once Manual mode is initiated on any relay or
analog output, an LED labeled “M” is turned
on. Every few seconds, all LEDs representing
outputs that are in Manual mode, as well as
the “M” LED flash.
This process will continue
as long as any output is in manual mode.
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Advanced Features Menu
To simplify the setup process, functions not needed for most applications are located in the Advanced
Features menu.
Press and hold the Menu button for three seconds to access the advanced features of the meter.
Advanced Features Menu & Display Messages
The following table shows the functions and messages of the Advanced Features menu in the order they
appear in the menu.
Display
Parameter
Action/Setting
filtEr
Filter
Set noise filter value
bypASs
Bypass
Round
seriAl
Parameter
Action/Setting
SCALE
Scale
Scaling parameter
Set filter bypass value
SCAL 1
Scale 1
Scaling parameter 1
Rounding
Select rounding value
SCAL 2
Scale 2
Scaling parameter 2
Serial
Set serial communication
parameters
CutofF
Cutoff
Set low-flow cutoff
Slave ID
Set slave ID or meter
address
Auto 0
Auto Zero
SlaveId
Enter the Auto Zero function
(on/off)
baud
Baud rate
Select baud rate
AoutPr
Program analog output
parameters
Tr dLY
Transmit
delay
Set transmit delay for serial
communication
Analog
output
programmin
g
Parity
Parity
Select parity
Even, Odd, or None with 1
or 2 stop bits
Source
Source
Select source for the 4-20
mA output
O-rang
Overrange
Program mA output for
display overrange
u-rang
Underrange
Program mA output for
display underrange
nmAx
Maximum
Program maximum mA
output allowed
nmin
Minimum
Program minimum mA
output allowed
Calib
Calibrate
Calibrate 4-20 mA output
(internal reference source
used for scaling the output)
4 nmA
4 mA output
Enter mA output value read
by milliamp meter with at
least 0.001 mA resolution
20 nmA
20 mA
output
Enter mA output value read
by milliamp meter with at
least 0.001 mA resolution
Time byte
Set byte-to-byte timeout
SelEct
Select
Enter the Select menu
(function, cutoff, out)
Functn
Signal input
conditioning
Linear, select number of
points
Linear
Linear
Set meter for linear function
and select number of
linearization points
t-byt
Pv 1
PV1
Select PV1 number of
linearization points
Pv 2
PV2
Select PV2 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
Display
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Display
Parameter
Action/Setting
user
User I/O
Assign function keys and
digital I/O
F1*
F1 function
key
Assign F1 function key
(*F1/F2/F3)
F4
F4 function
Assign F4 function (digital
input)
dI I
Digital input
1
Assign digital input 1 – 8, if
expansion modules are
connected
Digital
output 1
Assign digital output 1 – 8, if
expansion modules are
connected
Internal
source
calibration
Enter internal source
calibration (used for scaling
the meter without a signal
source)
15nmv
15 mV
calibration
Calibrate 15 mV input range
(internal reference source
used for scaling the input)
20nmv
20 mV
calibration
Calibrate 30 mV input range
(internal reference source
used for scaling the input)
dO 1
ICal
Display
Parameter
Action/Setting
100nmv
100 mV
calibration
Calibrate 150 mV input
range (internal reference
source used for scaling the
input)
200nmv
200 mV
calibration
Calibrate 300 mV input
range (internal reference
source used for scaling the
input)
stroff
Strain offset
Calibrate the offset of the
input circuit
v Lo
mV low
Calibrate low mV input (e.g.
0 mV)
v Hi
mV high
Calibrate high mV input (e.g.
100 mV)
Diagnostics
Display test and information
LED t
LED test
Test all LEDs
Info
Information
Display software and S/N
information
Erase
Erase
Erase MeterView Pro
software stored in meter’s
memory
Diag
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. This
setting affects the last two digits, regardless of decimal point position. See examples below:
Rounding
Selection
Actual
Value
Display
Value
Actual
Value
Display
Value
1
12.022
12.022
12.023
12.023
5
12.022
12.020
12.023
12.025
10
12.024
12.020
12.025
12.030
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
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 onboard micro USB connection. For
ongoing digital communications with a computer or other data terminal equipment, an RS-232, or RS-485
option is required; see Ordering Information on page 5 for details.
Do not connect any equipment other than
Precision Digital’s expansion modules, cables, or
meters to the RJ45 M-LINK connector. Otherwise
Warning! damage will occur to the equipment and the
meter.
Note: More detailed instructions are provided with each optional serial communications
adapter. Note: Refer to the ProVu® Modbus Register Tables
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 signal input conditioner applied to the input (linear), low cutoff,
Auto-zero, and analog output programming.
The multi-point linearization is part of the linear function selection.
Signal Input Conditioning (Functn)
The Function menu is used to select the signal input conditioner applied to the input: linear. The multipoint 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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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Multi-Point Linearization (Linear)
Meters are set up at the factory for linear function with 2-point linearization. Up to 32 linearization points
can be selected for PV under the linear function. The multi-point linearization can be used to linearize the
display for non-linear signals such as those from level Sensors used to measure volume in odd-shaped
tanks or to convert level to flow using weirs and flumes with complex exponent.
If the dual-scale Level feature has been selected, the menus for PV1 & PV2 are enabled. PV2 can be
programmed with up to 8 linearization points.
Auto-Zero (Auto 0)
Auto-zero corrects for drift that can occur over time that causes the input signal to slowly change. The
meter will continue to read zero despite slow and small changes to the input signal. The auto-zero value
represents the percent of full scale drift that the meter will correct.
Under normal circumstances, when the signal increases quickly, by an amount greater than the auto-zero
percent of full scale, the value will not be adjusted for. Slow signal changes that occur over time at
increments less than the auto-zero value, will not register on the meter (example: dust on a load cell or
sensor drift over time).
Low Cutoff (CutofF)
The low cutoff feature allows the meter to be programmed so that the often-unsteady output from a
differential pressure Sensor, at low flow rates, always displays zero on the meter.
The cutoff value may be programmed from 0 to 999999. The meter will display zero below the cutoff
value. Programming the cutoff value to zero 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. Max: Maximum analog output value allowed regardless of input
5. Min: Minimum analog output value allowed regardless of input
6. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output
Analog Output Source
The source for generating the 4-20 mA output may be assigned to the process variable, maximum or
minimum value reached by the process, one of the set points, or the Modbus PV input.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
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.
Programmable Function Keys User Menu (user)
The User menu allows the user to assign the front panel function keys F1, F2, and F3, the digital input F4
(a digital input located on the signal input connector), and up to eight additional digital inputs 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.
Up to eight 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.
*If installed
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
Reset the stored minimum display
value
Reset the stored maximum &
minimum display values
Capture tare and zero the display
Reset captured tare and resume
normal operation
Directly access the relay menu
Directly access the set point menu
for relay 1 (*through 8)
Disable all relays until a button
assigned to enable relays (Rly E)
is pressed
Enable all relays to function as they
have been programmed
Hold current relay states as they
are until a button assigned to
enable relays (Rly E) is pressed
Hold the current display value
momentarily while the function key
or digital input is active. The
process value will continue to be
calculated in the background.
Display maximum display value on
line 1
Rst Lo
Rst HL
tare
Rst tr
relay
Set 1
Rly d
Rly E
O Hold
d Hold
Ln1 Hi
Display
Ln1 Lo
Ln1 HL
Ln2nmV
Ln2 Hi
Ln2 Lo
Ln2 HL
zero
F On 1
Contrl
disabl
AcH
Reset
Description
Display minimum display value on
line 1
Display maximum & minimum
display values on line 1
Display the mV input on line 2
Display maximum display value on
line 2
Display minimum display value on
line 2
Display maximum & minimum
display values on line 2
Zero the display (this is different
from capture tare because it cannot
be reset)
Force relay 1 (*through 4) into the
on state. This function is used in
conjunction with a digital input
expansion module to achieve
interlock functionality. See page 40
for details about interlock relays.
Directly access the control menu
Disable the selected function key or
digital I/O
Acknowledge all active relays that
are in a manual operation mode
such as auto-manual or latching
Directly access the reset menu
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Display
nmenu
rigHt
up
Description
Mimic the menu button functionality
(digital inputs only)
Mimic the right arrow/F1 button
functionality (digital inputs only)
Mimic the up arrow/F2 button
functionality (digital inputs only)
Display
Enter
Alnm 1
Description
Mimic the enter/F3 button
functionality (digital inputs only)
Provide indication when alarm 1
(*through 8) has been triggered
(digital outputs only)
Internal Source Calibration (ICAL)
The meter is factory calibrated prior to shipment to read in millivolts. The
calibration equipment is certified to NIST standards. There is no need to
perform an internal calibration for new meter.
The internal source allows the user to scale the meter without applying a signal.
The use of calibrated signal sources is necessary to perform the internal source calibration of the meter.
Check calibration of the meter at least every 12 months. Each range must be recalibrated separately.
Notes:
1. mV input: If meter is in operation and it is intended to accept only one input range
(e.g. 0-30 mV), recalibration of other ranges is not necessary.
2. Strain gauge: If the meter is intended to accept a strain gauge bridge input, it is
recommended to use the CAL function with ratiometric compensation turned on.
3. 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 the first input range (15 mv), press the Up arrow to select any other range (e.g.
100mv. Press Enter to start the calibration process.
Example of Internal Calibration for 100 mV input range:
4. The meter displays the message “stroff” (strain offset), short the SG+, SG- terminals and press
Enter. The low input message is displayed (v lo). Apply the low input signal (e.g. 0.00 mV) 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 0.00 mV.
7. The display moves to the high input calibration (v 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 100.00 mV.
The graphic above shows the calibration of the 100 mV input range. The other input ranges are calibrated
in a similar way.
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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 input 2 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.
Minimum Input Span
The minimum input span is the minimum difference between input 1 and input 2 signals required to complete
the calibration or scaling of the meter.
Input Range
15 mV
25 mV, 30 mV
150 mV
250 mV, 300 mV
Input 1 & Input 2 Span
0.2 mV
0.4 mV
2.0 mV
4.0 mV
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Meter Operation
The meter is capable of accepting any signal from -250 to 250 mV in bipolar mode, or 0 to 300 mV in
unipolar mode, and displaying these signals in engineering units from -99999 to 999999 (e.g. a 0-100 mV
signal could be displayed as 0 to 50000). The dual-line display can be customized by the user to operate
in such a way as to satisfy a specific application. Typically, display line 1 is used for the process variable;
while line 2 is used for engineering units, custom legend, or set point indication.
The input signal can be scaled to display the process in two different scales; for example, line 1 could
indicate weight in pounds and line 2 could indicate percent of maximum weight capacity. The meter can
also be set up to display the analog input on line 1 and the Modbus input on line 2. The relays and analog
output can be programmed to operate from the Modbus PV input if the Modbus input has been assigned to
display line 1.
During operation, the meter can be either tared or zeroed. The tare feature is useful for momentarily zeroing
out of the display, in the case where there is additional weight than what is intended to be measured (e.g.
a bucket on the scale is being filled with material). The meter will display a T to indicate that the display has
been tared and taring is resettable via the reset tare operation. The zero feature is useful for permanent
zeroing of the meter, in the case where there has been drift in the strain gauge output over time. The zero
feature will zero out the display without indication or the ability to reset.
Front Panel Buttons Operation
Button
Description
Press to enter or exit Programming
Mode.
Press to zero the meter or other
parameter/ function assigned through
the User menu.
Press to reset tare or other
parameter/function assigned through
the User menu.
Press to tare the display value or other
parameters/function assigned through
the User menu.
Function Keys Operation
During operation, the programmable function keys operate according to the way they have been
programmed in the Advanced Features – User menu.
The table above shows the factory default settings for F1, F2, and F3.
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
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. Any of
the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min
readings.
2. Display continuously by assigning either display to max/min through the Display menu.
To display max reading using function key:
1. Press user assigned function key/digital input to display maximum reading since the last reset/powerup.
2. To reset max/min, press the Menu button, then the Up arrow/F2 button until the Reset (Reset) menu
is displayed.
3. Press the Up arrow/F2 button to select reset high (rst Hi), reset low (rst Lo), or reset high and low
(rst HL) is displayed and then press the Enter/F3 button. The max and/or min displays are reset to
actual values.
4. 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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PROVU PD6100 Strain Gauge, Load Cell, & mV 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.
Diagnostics Menu (diag)
The Diagnostics menu is located in the Advanced Features menu, to access Diagnostics menu see
Advanced Features Menu, page 43.
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, page
43.
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, page 43.
2. Press Up arrow to go to Diagnostics 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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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable parameters on the meter.
Parameter
Display
Default Setting
Parameter
Display
Default Setting
Input type
Polar
Polar = Uni
Fail-safe relay 1
Fls 1
Off
Input Range
range
Range = 30mV
Fail-safe relay 2
Fls 2
Off
Ratiometic
ratio
Ratio = Yes
Fail-safe relay 3
Fls 3
Off
Dual-scale
d-SCAl
No (Single scale)
Fail-safe relay 4
Fls 4
Off
Filter
filter
70
On delay relay 1
On 1
0.0 sec
Bypass
bypass
0.2
Off delay relay 1
Off 1
0.0 sec
Rounding
round
1
On delay relay 2
On 2
0.0 sec
Function
Functn
Linear
Off delay relay 2
Off 2
0.0 sec
Number of points
No Pts
2
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
0.00
Programming
Input 1
Display 1
prog
InP 1
Dis 1
Scale
0.00 mV
0.00
Input 2
InP 2
100.00 mV
Display 1 analog
out
Dis 1
Display 2
Dis 2
100.00
Output 1 value
Out 1
4.000 mA
Decimal point
ddd.ddd
3 places
100.00
CutofF
0.000 (disabled)
Display 2 analog
out
Dis 2
Cutoff value
Auto-zero
Auto 0
0.05% of Full
Scale
Output 2 value
Out 2
20.000 mA
Source analog
output
Source
Process Variable
Display
assignment
Dsplay
Overrange output
O-rang
21.000 mA
Line 1
Line 1
PV: Process
variable
Underrange
output
u-rang
3.000 mA
Line 2
Line 2
Eng units: mV
Maximum output
mAx
23.000 mA
Display intensity
d-Inty
8
Minimum output
min
1.000 mA
Relay 1 action
Act 1
Automatic
247
Relay 1 set point
Set 1
10.00
Slave ID
(Address)
SlavId
Relay 1 reset
point
RSt 1
5.00
Baud rate
baud
9600
Transmit delay
Tr dly
10 ms
Relay 2 action
Act 2
Automatic
Parity
Parity
Even
Relay 2 set point
Set 2
20.00
010 (0.1 sec)
RSt 2
15.00
Byte-to-byte
timeout
t-byt
Relay 2 reset
point
F1 function key
F1
Zero
Relay 3 action
Act 3
Automatic
F2 function key
F2
Reset Tare
Relay 3 set point
Set 3
30.00
F3 function key
F3
Tare
Relay 3 reset
point
RSt 3
25.00
F4 Function
F4
Acknowledge
relays
Relay 4 action
Act 4
Automatic
Digital input 1
dI 1
Menu
Relay 4 set point
Set 4
40.00
Digital input 2
dI 2
Right arrow/F1
Relay 4 reset
point
RSt 4
35.00
Digital input 3
dI 3
Up arrow/F2
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PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
Parameter
Display
Default Setting
Parameter
Display
Default Setting
Digital input 4
dI 4
Enter/F3
Digital output 4
dO 4
Alarm 4
Digital output 1
dO 1
Alarm 1
Password 1
Pass 1
000000 (unlocked)
Digital output 2
dO 2
Alarm 2
Password 2
Pass 2
000000 (unlocked)
Digital output 3
dO 3
Alarm 3
Password 3
Pass 3
000000 (unlocked)
Troubleshooting Tips (Including FAULT & ERROR Messages)
Symptom
Check/Action
No display at all
Check power at power connector
Not able to change setup or
Meter is password-protected, enter correct six-digit password to
programming, Locd is displayed unlock
Meter displays error message
Check:
during calibration (Error)
1. Signal connections
2. Input selected in Setup menu
3. Minimum input span requirements
Meter displays
Check:
1. Input selected in Setup menu
1. 999999
2. -99999
2. Signal at Signal connector
3. fault
3. Input exceeds range selected
Display is unstable
Check:
1. Input signal stability and value
2. Display scaling vs. input signal
3. Filter and bypass values (increase)
4. Increase Rounding value
Display response is too slow
Check filter and bypass values
Display reading is not accurate
Check:
1. Signal input conditioner selected: Linear, square root, etc.
2. Scaling or calibration
Display does not respond to
Check:
input changes, reading a fixed
1. Display assignment, it might be displaying max, min, or set point.
number
Display alternates between
Press Menu to exit max/min display readings.
1. Hi and a number
2. Lo and a number
Relay operation is reversed
Check:
1. Fail-safe in Setup menu
2. Wiring of relay contacts
Relay and status LED do not
Check:
respond to signal
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
Check:
application programs
1. Serial adapter and cable
2. Serial settings
3. Meter address and baud rate
If the display locks up or the
Cycle the power to reboot the
meter does not respond at all
microprocessor.
Other symptoms not described
Call Technical Support for
above
assistance.
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EU Declaration of Conformity
Issued in accordance with ISO/IEC 17050-1:2004.
We,
Precision Digital Corporation
233 South Street
Hopkinton, MA 01748 USA
as the manufacturer, declare under our sole responsibility that the product(s),
Model PD6100 ProVu Series Strain Gauge Meter
to which this declaration relates, is in conformity with the European Union Directives
shown below:
2014/35/EU
2014/30/EU
2011/65/EU
Low Voltage Directive
EMC Directive
RoHS Directive
This conformity is based on compliance with the application of harmonized or applicable
technical standards and, when applicable or required, a European Union notified body
certification.
Standards:
EN 55022:2003
EN 61000-6-2:2001
EN 61010-1:2001
EN 61326:2006
The standards EN 55022:2003, EN 61000-6-2:2001, EN 61010-1:2001, and EN
61326:2006 are no longer harmonized. The requirements of these standards have
been checked against the harmonized standards EN 55022:2010, EN 61000-62:2005, EN 61010-1:2010, and EN 61326:2013 and there were no major technical
changes affecting the latest technical knowledge for the products listed above.
Product Markings:
Signed for and on behalf of Precision Digital Corporation:
Name:
Company:
Title:
Date:
Jeffrey Peters
Precision Digital Corporation
President
04/20/2016
1.800.561.8187
www.
Document No: DoC PD6100 {042016}
.com
[email protected]
PROVU PD6100 Strain Gauge, Load Cell, & mV Meter Instruction Manual
PRECISION DIGITAL CORPORATION
LIM6100_F
SFT071 Ver 4.000 & up
03/17
1.800.561.8187
www.
.com
[email protected]