•Pulse, Open Collector, NPN, PNP, TTL, Switch Contact,
Sine Wave (Coil), Square Wave Inputs
• Gate Function for Rate Display of Slow Pulse Rates
• NEMA 4X, IP65 Front
• Large Dual-Line 6-Digit Display, 0.60" & 0.46"
• Isolated 24 VDC Transmitter Power Supply
• Programmable Displays & Function Keys
• Sunlight Readable Display Models
• Rate Displayed as Units per Second, Minute, Hour, or Day
• Total, Grand Total or Non-Resettable Grand Total
• 9-Digit Totalizer with Total Overflow Feature
• K-Factor Calibration or Scale with up to 32-Point Linearization
• Isolated 4-20 mA Output for Rate/Total/Grand Total
• USB, RS-232 & RS-485 Serial Communication Options
• Modbus
• Free USB Programming Software & Cable
®
RTU Communication Protocol Standard
Max Machinery Inc
33A Healdsburg Ave
Healdsburg CA 95448 USA
Tel (707) 433-2662
www.maxmachinery.com
Model 122 Pulse Input Rate/Totalizer Instruction Manual
CAUTION: Read complete
WARNING: Risk of
!
WARNING:
This product is not recommended for life support applications
Disclaimer
The information contained in this document is subject to change
without notice. Max Machinery 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.
instructions prior to
installation and operation
of the meter.
or applications where malfunctioning could result in personal
injury or property loss. Anyone using this product for such
applications does so at his/her own risk. Max Machinery
Incorporated shall not be held liable for damages resulting from
such improper use.
electric shock or
personal injury.
Limited Warranty
Max Machinery Incorporated warrants this product against defects in
material or workmanship for the specified period under
“Specifications” from the date of shipment from the factory. Max
Machinery’s liability under this limited warranty shall not exceed the
purchase value, repair, or replacement of the defective unit.
Registered Trademarks
All trademarks mentioned in this document are the property of their
respective owners.
Connectors Labeling --------------------------------------------------------- 16
Power Connections ---------------------------------------------------------- 16
Signal Connections ---------------------------------------------------------- 17
F4 Digital Input Connections ----------------------------------------------- 17
4-20 mA Output Connections ---------------------------------------------- 18
Analog Output Transmitter Power Supply ------------------------------ 18
SETUP AND PROGRAMMING ---------------------------------------- 19
MeterView Pro Software ------------------------------------------------------ 20
MeterView Pro Installation ------------------------------------------------- 20
Front Panel Buttons and Status LED Indicators --------------------- 22
Display Functions and Messages ----------------------------------------- 23
Main Menu ------------------------------------------------------------------------ 25
Setting Numeric Values ------------------------------------------------------ 26
Setting up the Rate/Totalizer Meter (setup) --------------------------- 27
Setting the Input Signal (Input) ------------------------------------------ 28
Setting the Totalizer Features (total) ---------------------------------- 28
Setting the Input Units or Custom Tags (units)---------------------- 29
Setting the Decimal Point (dEc pt) -------------------------------------- 30
Programming the Rate/Totalizer (prog) -------------------------------- 30
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Multi-Point Calibration & Scaling -------------------------------------- 32
Scaling the Meter (SCALE) ---------------------------------------------- 32
Gate Function (Gate) ---------------------------------------------------- 33
Contact De-Bounce Filter (FiLter) ---------------------------------- 34
Time Base, Total Conversion Factor & Total Reset -------------- 35
Calibrating the Meter with External Source (Cal) ----------------- 36
Setting the Display Parameter & Intensity (dsplay) ----------------- 37
Display Setup Menu --------------------------------------------------------- 38
Front Panel LEDs (rELAy) -------------------------------------------------- 39
Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 39
Reset Menu (reset) ------------------------------------------------------------ 40
Control Menu (Contrl) -------------------------------------------------------- 40
Setting up the Password (pass) ------------------------------------------- 40
Protecting or Locking the Meter ------------------------------------------- 41
Total Reset Password & Non-Resettable Total ----------------------- 41
Making Changes to a Password Protected Meter -------------------- 42
Disabling Password Protection -------------------------------------------- 42
Advanced Features Menu ---------------------------------------------------- 43
Advanced Features Menu & Display Messages ---------------------- 44
Rounding Feature (round) ------------------------------------------------- 45
Select Menu (SElEct) ------------------------------------------------------- 46
Signal Input Conditioning (Functn) -------------------------------------- 46
Multi-Point Linearization (Linear) ----------------------------------------- 46
Low-Flow Cutoff (CutofF) -------------------------------------------------- 47
Analog Output Programming (AoutPr) ---------------------------------- 47
Programmable Function Keys User Menu (user) -------------------- 48
METER OPERATION ----------------------------------------------------- 49
Front Panel Buttons Operation -------------------------------------------- 49
Function Keys Operation ---------------------------------------------------- 49
F4 Operation --------------------------------------------------------------------- 50
Maximum/Minimum Readings ---------------------------------------------- 50
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Table of Figures
Figure 1: 1/8 DIN Panel Cutout and Mounting .................................. 13
Figure 2: Meter Dimensions - Side View ........................................... 14
Figure 3: Meter Dimensions - Top View ............................................ 14
Figure 4: Transmitter Supply Voltage Selection .............................. 15
Figure 5: Connector Labeling for Model 122 .................................... 16
Figure 6: Power Connections ............................................................ 16
Figure 7: Flowmeter Powered by Internal Power Supply ................ 17
Figure 8. F4 Digital Input Connections ............................................. 17
Figure 9: 4-20 mA Output Connections ............................................ 18
INTRODUCTION
The Model 122 is a multipurpose, easy to use pulse rate/totalizer ideal for flow rate,
total, and control applications. It accepts pulse (e.g. ±40 mV to ±8 V), square wave
(0-5 V, 0-12 V, or 0-24 V), open collector, NPN, PNP, TTL or switch contact signals.
Three of the front panel buttons can be custom-programmed for specific operation.
The basic model includes an isolated 24 VDC transmitter power supply that can
be used to power the input transmitter or other devices.
ORDERING INFORMATION
Model Number Reorder Number
PD6300-6R3-MM 122-200-000
5
Model 122 Pulse Input Rate/Totalizer Instruction Manual
INTENSITY
The Upper and Lower displays may be assigned to rate,
display only), set points, Modbus input, & more.
DISPLAY
Three programmable passwords restrict modification of
Gtotal: Prevents resetting the grand total manually
Recognized, 5 A max, slow blow;
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
DISPLAY
DISPLAY
Upper display: 0.6" (15 mm) high, red LEDs
Lower display: 0.46" (12 mm) high, red LEDs
6 digits: each (-99999 to 999999), with lead zero blanking.
Eight user selectable intensity levels
DISPLAY
UPDATE RATE
OVERRANGE
DISPLAY
ASSIGNMENT
PROGRAMMING
METHODS
RECALIBRATION
MAX/MIN
PASSWORD
NON-VOLATILE
MEMORY
POWER
OPTIONS
FUSE
ISOLATED
TRANSMITTER
POWER SUPPLY
ISOLATION
Rate: 10 per second; up to 1 per 100 seconds (and is a
function of Low Gate setting)
Total: 10 per second (fixed)
Display flashes
total, grand total, alternate rate & total, max/min, units (lower
Four front panel buttons, digital inputs, PC via MeterView Pro
software, or Modbus registers.
All ranges are calibrated at the factory to read frequency in
Hz. No recalibration required.
Max/min readings reached by the process are stored until
reset by the user or until power to the meter is cycled.
programmed settings and two prevent resetting the totals.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.
Total: Prevents resetting the total manually
All programmed settings are stored in non-volatile memory
for a minimum of ten years if power is lost.
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max
Required external fuse: UL
up to 6 meters may share one 5 A fuse
Terminals P+ & P-: 24 VDC ± 10% selectable for 24, 10, or 5
VDC supply (internal jumper J4).
85-265 VAC models rated @ 200 mA max.
4 kV input/output-to-power line
500 V input-to-output or output-to-P+ supply
999999
6
Model 122 Pulse Input Rate/Totalizer Instruction Manual
ENCLOSURE
TORQUE
DIMENSIONS
INPUTS
Field selectable: Pulse or square wave 0-5 V, 0-12 V, or
pull-up to 5 V @ 40 Hz; Modbus PV (Slave)
LOW VOLTAGE
(Isolated)
Sensitivity: 40 mVp-p to 8Vp-p
MINIMUM INPUT
FREQUENCY
0.001 Hz
Minimum frequency is dependent on high gate setting.
MAXIMUM INPUT
FREQUENCY
30,000 Hz (10,000 for low voltage mag pickup)
INPUT
IMPEDANCE
Pulse input: Greater than 300 kΩ @ 1 kHz.
Open collector/switch input: 4.7 kΩ pull-up to 5 V.
ACCURACY
±0.03% of calibrated span ±1 count
TEMPERATURE
DRIFT
Rate display is not affected by changes in temperature.
MULTI-POINT
LINEARIZATION
2 to 32 points
OVERVOLTAGE
CATEGORY
ENVIRONMENTAL
CONNECTIONS
MOUNTING
TIGHTENING
Installation Overvoltage Category II:
Local level with smaller transient overvoltages than
Installation Overvoltage Category III.
Operating temperature range: -40 to 65°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
Removable screw terminal blocks accept 12 to 22 AWG
wire, RJ45 for external relays, digital I/O, and serial
communication adapters.
1/8 DIN, high impact plastic, UL 94V-0, color: black
1/8 DIN panel cutout required:
3.622" x 1.772" (92 mm x 45 mm)
Two panel mounting bracket assemblies are provided.
Screw terminal connectors: 5 lb-in (0.56 Nm)
OVERALL
WEIGHT 9.5 oz (269 g)
WARRANTY 3 years parts & labor
4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm)
(W x H x D)
Rate Input
0-24 V @ 30 kHz; TTL; open collector 4.7 kΩ pull-up to 5 V
@ 30 kHz; NPN or PNP transistor, switch contact 4.7 kΩ
MAG PICKUP
7
Model 122 Pulse Input Rate/Totalizer Instruction Manual
LOW-FLOW
CUTOFF
0-999999 (0 disables cutoff function)
DECIMAL POINT
Up to five decimal places or none:
, or
CALIBRATION
May be calibrated using K-factor, internal calibration, or by
applying an external calibration signal.
K-FACTOR
Field programmable K-factor converts input pulses to rate in
999,999 pulses/unit.
CALIBRATION
Input 1 signal may be set anywhere in the range of the
input 1 setting.
Minimum input span between any two inputs is 10 Hz.
An error message will appear if the input 1 and input 2
signals are too close together.
FILTER
Programmable contact de-bounce filter: 40 to 999 Hz
maximum input frequency allowed with low speed filter.
TIME BASE
Second, minute, hour, or day
GATE
Low gate: 0.1-99.9 seconds
High gate: 2.0-999.9 seconds
F4 DIGITAL INPUT
CONTACTS
3.3 VDC on contact. Connect normally open contacts across
F4 to COM.
F4 DIGITAL INPUT
LOGIC LEVELS
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
DISPLAY
The Upper and Lower displays may be assigned to rate,
display Off (lower display).
RATE DISPLAY
INDICATION
-99999 to 999999, lead zero blanking. “R” LED illuminates
while displaying rate or frequency.
TOTAL DISPLAY
0 to 999,999; automatic lead zero blanking. “T” LED is
displayed to the left of total overflow and ▲ LED is illuminated.
ALTERNATING
DISPLAY
Either display may be programmed to alternate between rate
and total or rate and grand total every 10 seconds.
TOTAL
Up to five decimal places or none:
Total decimal point is independent of rate decimal point.
RANGE
Rate/Totalizer
ASSIGNMENT
d.ddddd, d.dddd, d.ddd, d.dd, d.d
engineering units. May be programmed from 0.00001 to
meter; input 2 signal may be set anywhere above or below
total, grand total, alternate rate/total, alternate rate/grand
total, set points, alternate rate/units, alternate total/units,
alternate grand total/units, display Hi, display Lo, display
Hi/Lo, display Modbus, display units (lower display) and
dddddd
& TOTAL
OVERFLOW
DECIMAL POINT
illuminated while displaying total or grand total.
Up to 999,999,999 with total-overflow feature. “
d.ddddd, d.dddd, d.ddd, d.dd, d.d, ordddddd
8
oF” is
Model 122 Pulse Input Rate/Totalizer Instruction Manual
TOTALIZER
Calculates total based on rate and field programmable
rate is displayed.
TOTALIZER
ROLLOVER
Totalizer rolls over when display exceeds 999,999,999.
Relay status reflects display.
TOTAL
OVERRIDE
Program total reset for automatic with 0.1 second delay and
TOTALIZER
Up to eight, user selectable under setup menu. Any set point
in the range of the meter for total alarm indication.
PROGRAMM-
0.1 and 999.9 seconds; applied to the first relay assigned to
occur before the total is reset.
TOTAL RESET
Via front panel button, external contact closure on digital
time delay, or through serial communications.
TOTAL RESET
PASSWORD
Total and grand total passwords may be entered to prevent
resetting the total or grand total from the front panel.
NON-
The grand total can be programmed as a non-resettable
total by entering the password “050873”.
Caution!
ACCURACY
!
multiplier to display total in engineering units. Time base
must be selected according to the time units in which the
OVERFLOW
PRESETS
ABLE DELAY
ON RELEASE
RESETTABLE
TOTAL
set point 1 for 999,999
can be assigned to total and may be programmed anywhere
total or grand total.
If the meter is programmed to reset total to zero
automatically when the preset is reached, then a delay will
inputs, automatically via user selectable preset value and
Once the Grand Total has been programmed
as “non-resettable” the feature cannot be
disabled.
Isolated 4-20 mA Transmitter Output
OUTPUT SOURCE
SCALING RANGE 1.000 to 23.000 mA for any display range.
CALIBRATION Factory calibrated: 0.0 to 1000.0 = 4-20 mA output
ANALOG OUT
PROGRAMMING
TEMPERATURE
DRIFT
Rate/process, total, grand total, max, min, set points 1-8,
Modbus input or manual control mode
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break
± 0.1% FS ± 0.004 mA
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.
9
Model 122 Pulse Input Rate/Totalizer Instruction Manual
POWER SUPPLY
DATA
COMMUNICATIONS
CONFIGURATION
ISOLATED
TRANSMITTER
POWER SUPPLY
EXTERNAL LOOP
Terminals I+ & R: 24 VDC ± 10%. May be used to power the 420 mA output or other devices. Refer to Figure 6 on page
16 and Figure 15 on page 18.
All models rated @ 40 mA max.
35 VDC maximum
OUTPUT LOOP
RESISTANCE
35 VDC (external)
Power supply Minimum Maximum
24 VDC
10 Ω 700 Ω
100 Ω 1200 Ω
Modbus® RTU Serial Communications
SLAVE ID 1 – 247 (Meter address)
BAUD RATE 300 - 19,200 bps
TRANSMIT
TIME DELAY
PARITY Even, Odd, or None with 1 or 2 stop bits
BYTE-TO-BYTE
TIMEOUT
TURN AROUND
DELAY
Note: Refer to the Modbus Register Tables located at www.maxmachinery.com
for details.
Programmable between 0 and 199 ms
8 bit (1 start bit, 1 or 2 stop bits)
0.01 – 2.54 second
Less than 2 ms (fixed)
MeterView Pro Software
SYSTEM
REQUIREMENTS
Microsoft® Windows® XP/Vista/7/8/10
USB 2.0 (Standard USB A to Micro USB B)
Configure meters one at a time
10
Model 122 Pulse Input Rate/Totalizer Instruction Manual
UL & c-UL LISTED
USA & Canada
UL 508 Industrial Control Equipment
UL FILE NUMBER
E160849
FRONT PANEL
UL Type 4X, NEMA 4X, IP65; panel gasket provided
LOW VOLTAGE
EN 61010-1:2010
laboratory use
EMISSIONS
EN 55022:2010
Class A ITE emissions requirements
Radiated
Emissions
Class A
AC Mains
Emissions
Class A
IMMUNITY
EN 61326-1:2013
EMC heavy industrial generic immunity standard
RFI - Amplitude
80 -1000 MHz 10 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
Electrical Fast
Transients
±2kV AC mains, ±1kV other
Electrostatic
Discharge
±4kV contact, ±8kV air
RFI - Conducted
10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge
±2kV Common, ±1kV Differential
Surge
1KV (CM)
Power-Frequency
Magnetic Field
30 A/m 70%V for 0.5 period
Voltage Dips
40%V for 5 & 50 periods
70%V for 25 periods
Voltage
Interruptions
<5%V for 250 periods
COMPLIANCE INFORMATION
Safety
DIRECTIVE
Safety requirements for measurement, control, and
Electromagnetic Compatibility
Conducted
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
Modulated
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
11
Model 122 Pulse Input Rate/Totalizer Instruction Manual
CAUTION: Read complete
WARNING: Risk of
Warning!
!
Note:
Testing was conducted on Model 122 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.
Declaration of Conformity available at www.maxmachinery.com
SAFETY INFORMATION
instructions prior to
installation and operation
of the meter.
electric shock or
personal injury.
Hazardous voltages exist within enclosure.
Installation and service should be performed only
by trained service personnel.
12
Model 122 Pulse Input Rate/Totalizer Instruction Manual
3.622" (92 mm)
1.772"
(45mm)
Panel Cutout
to DIN 43700
Square Corners to 0.060"
(1.5mm) Max Radius
ABTolerances:
A: +0.032 (+0.8mm)
-0.000 (-0.0mm)
B: +0.024 (+0.6mm)
-0.000 (-0.0mm)
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
transmitter power supply to output 5 or 10 VDC instead of 24
VDC, see page 15.
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 1 for more details.
• Clearance: allow at least 6.0" (152 mm) behind the panel for wiring.
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.
Figure 1: 1/8 DIN Panel Cutout and Mounting
13
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Mounting Dimensions
Figure 2: Meter Dimensions - Side View
Figure 3: Meter Dimensions - Top View
14
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Transmitter Supply Voltage Selection (P+, P-)
All meters are shipped from the factory configured to provide 24
VDC power for the transmitter or sensor.
If the transmitter requires 5 or 10 VDC excitation, the internal
jumper J4 must be configured accordingly.
To access the voltage selection jumper:
1. Remove all the connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J4 jumper, located behind the input signal connector,
for the desired excitation voltage as shown.
Figure 4: Transmitter Supply Voltage Selection
Connections
All connections are made to removable screw terminal connectors
located at the rear of the meter.
Use copper wire with 60°C or 60/75°C insulation
for all line voltage connections. Observe all safety
regulations. Electrical wiring should be performed
in accordance with all applicable national, state,
Caution!
and local codes to prevent damage to the meter
and ensure personnel safety.
15
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Warning!
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+
-
Connectors Labeling
The connectors’ label, affixed to the meter, shows the location of all
connectors available with requested configuration.
The RJ45 M-LINK connector is for factory use only.
Do not connect standard RJ45 cable, otherwise
damage will occur to the equipment and the meter.
Figure 5: Connector Labeling for Model 122
Power Connections
Power connections are made to a two-terminal connector labeled
POWER on Figure 5. The meter will operate regardless of DC polarity
connection. The + and - symbols are only a suggested wiring convention.
Figure 6: Power Connections
16
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Signal Connections
Signal connections are made to a six-terminal connector labeled
SIGNAL on Figure 5. The COM (common) terminal is the return for the
input signals.
Setup and programming is performed through the front panel buttons.
BROWN
BLACK
WHITE
Figure 7: Flowmeter Powered by Internal Power Supply
F4 Digital Input Connections
A digital input, F4, is standard on the meter. This digital input connected
with a normally open closure across F4 and COM, or with an active low
signal applied to F4.
Figure 8. F4 Digital Input Connections
17
Model 122 Pulse Input Rate/Totalizer Instruction Manual
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-
+
RI- I+
132
RELAY1
32 1
24 V
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
-
+
RI- I+
MA OUT
132
RELAY1
321
24 V
MA OUT
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the
connector terminals labeled MA OUT. The 4-20 mA output may be
powered internally or from an external power supply.
Figure 9: 4-20 mA Output Connections
Analog Output Transmitter Power Supply
The internal 24 VDC power supply powering the analog output may be
used to power other devices, if the analog output is not used. The I+
terminal is the +24 V and the R terminal is the return.
18
Model 122 Pulse Input Rate/Totalizer Instruction Manual
• The meter has been factory calibrated to read input
SETUP AND PROGRAMMING
frequency in Hz (pulses/sec). The calibration
equipment is certified to NIST standards.
•Use the K-Factor menu to match the rate/totalizer with
a flowmeter’s k-factor (pulse/unit of measure).
•Or use the Scale menu to scale the pulse input
(pulse/sec) without a signal source.
•Or use Cal menu to calibrate the rate/totalizer using a
signal source.
Overview
There are two switches, located to the right of the input connector,
which must be configured according to the input level and type. Jumper
J4 located inside the meter, behind the input signal connector, is used
to select the excitation voltage (24 V*, 10 V or 5 V) which is supplied to
the P+ and P- wiring terminals.
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.
*Default setting
19
Model 122 Pulse Input Rate/Totalizer 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® (2000/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.
Disconnect other meters before performing these steps.
Once the driver is installed, an AutoPlay dialog should appear for
2.
the drive “MAINSTAL.” Click “Open folder to view files.”
If the computer does not display an AutoPlay dialog for the drive
“MAINSTAL,” you should open My Computer and double-click on
the drive labeled “MAINSTAL.”
20
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Note: If you decide to update your MeterView Pro software, once the
have the most current version on the meter for future installs.
Warning!
Do not unplug the meter while the new installation
onscreen notification once the process is complete.
Double-click on the file named “MAStart.” The program will open a
3.
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.
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
files are being written to it. The meter will display
uwrite during the process and you will receive an
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.
21
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Button
Symbol
Description
LED
Status
Note:
Total overflow
Manual control relays
Front Panel Buttons and Status LED Indicators
Menu 1-4 Alarm 1 – 4 indicator
Right arrow/F1 R Rate indicator
Up arrow/F2 T Total indicator
Enter/F3 G T Grand Total indicator
F4 is a digital input.
•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 press or hold 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.
22
▲
M
indicator
&/or analog output
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Display
Parameter
Action/Setting Description
Setup
Enter Setup menu
Input
Enter Input selection menu
Total
Enable or disable totalizer features
Select the display units/tags
Rate
Select the display units for rate
Total
Select the display units for total
Grand Total
Select the display units for grand total
Decimal point
Set decimal point for rate, total, grand total
Program
Enter the Program menu
InCAL
Input Calibration
Enter the Input Calibration menu
K-factor Scaling
Programs unit to convert input pulse to rate
in engineering units
Scale
Enter the Scale menu
Calibrate
Enter the Calibrate menu
value
Display 1
Program display 1 value
Input 2
Calibrate input 2 signal or program input 2
value (up to 32 points)
Display 2
Program display 2 value (up to 32 points)
Error
Error
Error, calibration not successful, check
signal or programmed value
Total time base
Program total time base
factor
Program total conversion factor
Total reset
Program total reset mode: auto or manual
Grand total time
base
Program grand total time base
Grand total
conversion factor
Program grand total conversion factor
Grand total reset
Program grand total reset mode: auto or
manual
Automatic
Press Enter to set automatic total reset
Display Functions and 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.
setup
Input
Total
unitS
rate
total
Gtotal
Dec pt
prog
factor
sCalE
Cal
Inp 1
Dis 1
Inp 2
Units
Input 1
Calibrate input 1 signal or program input 1
Dis 2
T tb
T CF
T rst
GT tb
GT CF
GT rst
Auto
Total conversion
23
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Display
Parameter
Action/Setting Description
Time delay
Program time delay for total auto reset
Manual
Press Enter to reset total manually
Display
Enter the Display menu
Upper display
Press Enter to assign the Upper display
parameter (default: PV or rate)
Line 2
Lower display
Press Enter to assign the lower display
parameter (default: total)
Display intensity
Set display intensity level from 1 to 8
Analog output
Enter the Analog output scaling menu
Display 1
Program display 1 value
Out 1
Output 1
Program output 1 value (e.g. 4.000 mA)
Display 2
Program display 2 value
Output 2
Program output 2 value (e.g. 20.000 mA)
Reset
Press Enter to access the Reset menu
Press Enter to reset max display
Reset low
Press Enter to reset min display
Reset high & low
Press Enter to reset max & min displays
Reset total
Press Enter to reset total
Press Enter to reset grand total
Control
Enter Control menu
Automatic
Press Enter to set meter for automatic
operation
Manual
Press Enter to manually control relays or
analog output operation
Password
Enter the Password menu
Password 1*
Set or enter Password 1* (*1, 2, or 3)
Total password
Set or enter password for manual reset
Grand total
password
Set or enter password for manual reset
Non-resettable
Non-resettable grand total set after entering
“050873” for Gtotal password
Unlocked
Program password to lock meter
Locked
Enter password to unlock meter
display
Overrange condition
T dly
mAn
dsplay
Line 1
d-Inty
Aout
Dis 1
Dis 2
Out 2
reset
Rst Hi
Rst Lo
Rst HL
Rst t
Rst Gt
Contrl
Auto
mAn
Reset high
Reset grand total
pass
Pass 1*
Total
Gtotal
nonrst
unloc
locd
999999
Flashing
24
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Main Menu
The main menu consists of the most commonly used functions: Reset,
Control, Setup, and Password.
•Press Menu button to enter Programming Mode then press the Up
arrow button to scroll through the 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.
25
Model 122 Pulse Input Rate/Totalizer Instruction Manual
004.000
004.000
005.000
dis 1
dis 1
dis 1
Next
Setting
Select
Next
Digit
Increment
DigitalValue
Accept
Setting
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.
26
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Relays 2-8
Fail-Safe
Delay
Setting up the Rate/Totalizer Meter (setup)
The Setup menu is used to select:
1. Enable or disable totalizer features
2. Units for Rate, Total, and Grand Total
3. Decimal point position
4. Input Calibration
5. Display parameter and intensity
6. Relay (Alarm) operation
7. 4-20 mA analog output scaling
Press the Enter button to access any menu or press Up arrow button to
scroll through choices. Press the Menu button to exit at any time.
27
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Setting the Input Signal (Input)
There is a switch, located to the right of the input connector, which must
be configured according to the input level and type. Jumper J4 located
inside the meter, behind the input signal connector, is used to select the
excitation voltage (24 V*, 10 V or 5 V) which is supplied to the P+ and
P- wiring terminals.
*Default setting
Enter the Input menu to enable or disable the totalizer features.
Setting the Totalizer Features (total)
Enable or disable the totalizer features by selecting “Yes” or “no” after
the input type has been set up. If the totalizer features are disabled,
most totalizer features and functions are hidden from the menus.
Note: The totalizer continues working in the background.
28
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Display
Character
Display
Character
0
0
k K 1
1
l L 2
2
m
m
3
3
n n 4
4
O O 5
5
o o 6
6
p P 7
7
q q 8
8
r r 9
9
s S A
A
t t b
b
u u C
C
v
V
uw
d
d
x X e
E
y Y f
F
z Z g
G
- - 9
g
/ / H
H
[ ] h
h
] [ I
I
=
=
!
j
J
Space
Setting the Input Units or Custom Tags (units)
Enter the input unit or custom tag that will be displayed if alternating
rate, total, or grand total and units is selected in the units menu, or d unit is selected as the lower display parameter. See the flow chart on
page 38 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:
Notes:
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.
c
I
c
i
29
w
Degree(<)
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Setting the Decimal Point (dEc pt)
The decimal point may be set with up to five decimal places or with no
decimal point at all. The rate, total, and grand total decimal points are
independent.
Pressing the right arrow moves the decimal point one place to the right
until no decimal point is displayed, then it moves to the leftmost position.
Pressing the up arrow moves the decimal point to the left.
Programming the Rate/Totalizer (prog)
It is very important that one reads the following information before
programming the meter:
•The meter has been factory calibrated to read input frequency in Hz
(pulses/sec). The calibration equipment is certified to NIST
standards.
•Use the K-Factor menu to match the rate/totalizer with a
flowmeter’s k-factor (pulse/unit of measure).
•Or use the Scale menu to scale the pulse input (pulse/sec) without
a signal source.
•Or use Cal menu to calibrate the rate/totalizer using a signal
source.
The Program menu contains the following menus:
1. K-Factor calibration
2. Scale without a signal source
3. Calibrate with a calibrated signal source
4. Total time base & conversion factor
5. Grand total time base & conversion factor
6. Total reset mode for total & grand total
Note: The Scale, Calibrate, and K-Factor functions are exclusive of
each other. The meter uses the last function programmed. Only one of
these methods can be employed at a time. The Scale and Calibrate
functions can use up to 32 points (default is 2). The number of points
should be set in the Advanced Features menu under the Multi-Point
Linearization (Linear) menu selection prior to scaling and calibration of
the meter, see page 46 for details.
The pulse inputs may be calibrated or scaled to any display value within
the range of the meter.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Additional parameters, not needed for most applications, are
programmed in the Advanced Features menu; see Advanced Features Menu, page 43.
K-Factor Calibration (Factor)
The meter may be calibrated using the K-Factor function. Most
flowmeter manufacturers provide this information with the device. Enter
the K-Factor (Factor) menu and select the decimal point with highest
resolution possible and program the k-factor value (i.e. pulses/gal). The
meter will automatically calculate the flow rate using the k-factor and the
time base selected.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
For instructions on how to program numeric
values see Setting Numeric Values, page 26.
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
AdvancedFeatures menu. Up to 32 linearization points may be
selected. See page 46 for details.
Scaling the Meter (SCALE)
The pulse inputs 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.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
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, 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. Minimum input span requirements not maintained.
3. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum allowed input span is 1.0 Hz, which is the minimum difference
between input 1 and input 2 signals required to complete the calibration or
scaling of the meter.
Gate Function (Gate)
The gate function is used for displaying slow pulse rates. Using the
programmable gate, the meter is able to display pulse rates as slow as
1 pulse every 999.9 seconds (0.001 Hz). The gate function can also be
used to obtain a steady display reading with a fluctuating input signal.
The gate function (Gate) is the first option in the Advanced Features
menu. There are two settings for the Gate, low gate (Lo G) and high
Hi G).
gate (
Low Gate (Lo G)
For most applications, low gate setting should be left at 1.0 second.
Increase low gate setting to obtain a steadier rate display. The rate
display will update in accordance with the low gate setting, for example
if low gate is set at 10.0, the display will update every 10 seconds;
changes in rate between updates will not be reflected until next display
update.
High Gate (Hi G)
Set the high gate value to correspond to the highest expected pulse
period (lowest pulse rate). For instance if the meter must display a rate
when there is 1 pulse coming into the meter every 10 seconds, set the
high gate to 11.0 seconds. When the signal is removed from the meter,
the display will show the last reading for 11 seconds; then it will read
zero.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Slow Pulse Rate
Low Gate* (sec)
High Gate (sec)
Min Freq** (Hz)
1.0
2.0
0.5000
1.0
10.0
0.1000
1.0
20.0
0.0500
1.0
100.0
0.0100
1.0
200.0
0.0050
1.0
400.0
0.0025
1.0
800.0
0.0012
1.0
999.9
0.0010
*The low gate setting corresponds to the display update rate and is
Contact De-Bounce Filter
Filter Setting
Speed Setting
Max Freq (Hz)
2
Lo SPd
999
4
Lo SPd
499
8
Lo SPd
249
16
Lo SPd
124
32
Lo SPd
62
40
Lo SPd
50
50
Lo SPd
40
N/A
Hi SPd
30,000
Gate Settings
used to stabilize the display reading with a fluctuating signal.
**The minimum frequency is dependent on high gate setting.
Contact De-Bounce Filter (FiLter)
The filter function (FiLter) can be used for applications where the
meter is set up to count pulses generated by switch contacts. The filter
value can be set anywhere between 2 and 50, the higher the value, the
greater the filtering.
The filter function (Filter) is the second option in the Advanced
Features menu. There are two settings,
SPd (low speed), press ENTER when Lo SPd is displayed to enable the
filter function. Program the filter value, so that there are no extra counts
when a contact closure is completed.
Filter Settings
Hi SPd (high speed) and Lo
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Time Base, Total Conversion Factor & Total Reset
The time base, total conversion factor, and total reset menus are
located in the Program menu.
The total and grand total have their own independent settings. This
means that one can be displaying the value in gallons while the other
displays in million gallons, liters, m
3
, etc.
Time Base
The time base is the amount of time over which the rate parameter
should accrue. For example, if the rate was ten and the time base was
in minutes, then the total would increase by ten every one minute.
Total & Grand Total Conversion Factor
The total & grand total conversion factor is the amount by which the rate
is multiplied before it is added to the total or grand total. For Example, if
the rate was ten per second and the total conversion factor was 100, the
total would increase by 1000 every second. This is useful, for instance,
if you want to show rate in gallons and total in thousands of gallons.
Total & Grand Total Reset
The totals can be programmed for manual or automatic reset. In the
automatic reset mode, a programmable time delay is available to reset
the total or grand total after the assigned preset is reached.
Non-Resettable Totalizer
The total and grand total can be password-protected to prevent
unauthorized resets. The grand total can be programmed as a
non-resettable total, see page 41 for details.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
To scale the meter without a signal
T
he display flashes
while sensing
the inputs
Calibrating the Meter with External Source (Cal)
source, refer to K-Factor Calibration
(Factor) on page 31 or Scaling the
Meter (SCALE) on page 32
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.
There is no need to warm up the meter before
performing the calibration procedure.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Setting the Display Parameter & Intensity (dsplay)
The upper display (line 1) can be programmed to display:
1. Rate value
2. Total or grand total
3. Relay set points
4. Max & min values
5. Modbus input
6. Display rate and units
7. Rate and total
8. Rate and grand total
9. Total and units
10. Grand total and units
The lower display (line 2) can be programmed to display:
1. Rate value
2. Total or grand total
3. Relay set points
4. Max & min values
5. Engineering units or custom legends
6. Modbus input
7. Off (no display)
8. Display rate and units
9. Rate and total
10. Rate and grand total
11. Total and units
12. Grand total and units
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 display intensity setting is 8.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Display Setup Menu
After setting up the input and the display, press the Menu button to exit
programming and skip the rest of the setup menu. Press the Menu
button again and the Up arrow to reach the Program menu and
complete the scaling or calibration of the meter.
38
Model 122 Pulse Input Rate/Totalizer Instruction Manual
LED
Status
1
Alarm 1
2
Alarm 2
3
Alarm 3
4
Alarm 4
Front Panel LEDs (rELAy)
The LEDs on the front panel provide status indication for the following:
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.
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 26.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Reset Menu (reset)
The Reset menu is used to reset the totals, maximum or minimum
reading (peak or valley) reached by the process; both may be reset at
the same time by selecting “reset high & low” (rst HL).
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 the analog output for automatic operation.
Setting up the Password (pass)
The Password menu is used for programming three levels of security to
prevent unauthorized changes to the programmed parameter settings
and to program the non-resettable totalizer.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.
Total: Prevents resetting the total manually
Gtotal: Prevents resetting the grand total manually
40
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Model:
Serial Number:
Password 1:
__ __ __ __ __ __
Password 2:
__ __ __ __ __ __
Password 3:
__ __ __ __ __ __
Total
__ __ __ __ __ __
GTotal
__ __ __ __ __ __
!
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 26.
Record the password for future reference. If appropriate, it may be
recorded in the space provided.
Total Reset Password & Non-Resettable Total
The total and the grand total can be password-protected to
prevent unauthorized total resets.
The grand total can be programmed as a non-resettable total by
entering the password “050873”.
Caution!
Once the Grand Total has been programmed as “nonresettable” the feature cannot be disabled.
41
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Making Changes to a Password Protected Meter
If the meter is password protected, the meter will display the message
Locd (Locked) when the Menu button is pressed. Press the Enter button
while the message is being displayed and enter the correct password to
gain access the menu. After exiting the programming mode, the meter
returns to its password protected condition.
Disabling Password Protection
To disable the password protection, access the Password menu and
enter the correct password twice, as shown below. The meter is now
unprotected until a new password is entered.
If the correct six-digit password is entered, the meter displays the
message unLoc (unlocked) and the protection is disabled until a new
password is programmed.
If the password entered is incorrect, the meter displays the message
Locd (Locked) for about two seconds, and then it returns to Run Mode.
To try again, press Enter while the Locked message is displayed.
The password may be disabled by entering a master
Did you forget the password?
password once. If you are authorized to make changes,
enter the master password 508655 to unlock the meter.
42
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Advanced Features Menu
To simplify the setup process, functions not needed for most
applications are located in the Advanced Features menu.
Press and hold the Menu button for three seconds to access the
Advanced Features of the meter.
43
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Display
Parameter
Action/Setting
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.
Gate
Lo G
Hi G
filter
Lo Spd
Hi Spd
Round
seriAl
SlaveId
baud
Tr dLY
Parity
t-byt
SelEct
Functn
Linear
No PtS
CutofF
Count
Tot C
Gtot C
Gate Enter Gate function menu
Low gate Program Low gate value
High gate Program High gate value
Filter Enter the Filter menu
Low speed Set the contact de-bounce filter value
High speed Select high speed filter
Round
Serial Set serial communication parameters
Slave ID Set slave ID or meter address
Baud rate Select baud rate
Transmit delay
Parity
Time byte Set byte-to-byte timeout
Select
Signal input
conditioning
Linear
Number of points Set meter for 2 to 32-point linearization
Cutoff Set low-flow cutoff
Count
Total count
Grand total
count
Set the rounding value for display
variables
Set transmit delay for serial
communication
Select parity
Even, Odd, or None with 1 or 2 stop bits
Enter the Select menu (function, cutoff,
out)
Select linear only, other functions are not
applicable to pulse input
Set meter for linear function and select
number of linearization points
Set the totals to count up or down from a
set value
Set the total to count up to or down from
the programmed total value
Set the grand total to count up or down
from from the programmed grand total
value
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Display Parameter Action/Setting
AoutPr
Source
O-rang
u-rang
mAx
min
Analog output
programming
Source Select source for the 4-20 mA output
Overrange Program mA output for display overrange
Underrange
Maximum Program maximum mA output allowed
Minimum Program minimum mA output allowed
Program analog output parameters
Program mA output for display
underrange
Calib
4 mA
20 mA
user
F1
F2
F3
F4
dI I
dO 1
Diag
LED t
Info
Erase
Calibrate
4 mA output
20 mA output
User I/O Assign function keys and digital I/O
F1 function key Assign F1 function key
F2 function key Assign F2 function key
F3 function key Assign F3 function key
F4 function Assign F4 function (digital input)
Digital input 1 *For factory use only
Digital output 1 *For factory use only
Diagnostics Display parameter settings
LED test Test all LEDs
Information Display software and S/N information
Erase
Calibrate 4-20 mA output (internal
reference source used for scaling the
output)
Enter mA output value read by milliamp
meter with at least 0.001 mA resolution
Enter mA output value read by milliamp
meter with at least 0.001 mA resolution
Erase MeterView Pro software stored in
meter’s memory
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.
45
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Select Menu (SElEct)
The Select menu is used to select the signal input conditioner applied to
the input (linear), low-flow cutoff, 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, where the multi-point linearization is part of the linear
function selection.
Meters are set up at the factory for linear function with 2-point
linearization. The linear function provides a display that is linear with
respect to the input signal.
Multi-Point Linearization (Linear)
Meters are set up at the factory for linear function with 2-point
linearization. Up to 32 linearization points can be selected under the
linear function.
display for non-linear signals.
The multi-point linearization can be used to linearize the
46
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Low-Flow Cutoff (CutofF)
The low-flow cutoff feature allows the meter to be programmed so that
the often-unsteady output from a differential pressure transmitter, at low
flow rates, always displays zero on the meter.
The cutoff value may be programmed from 0 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
rate/process variable, total, grand total, maximum or minimum value
reached by the rate/process, one of the set points, or the Modbus PV
input.
Analog Output Calibration
To perform the analog output calibration it’s recommended to use a
milliamp meter with a resolution of at least 0.1 µA to measure the output
current. The values saved internally during this procedure are used for
scaling the 4-20 mA output in the Setup menu.
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
*If installed
Programmable Function Keys User Menu (user)
The User menu allows the user to assign the front panel function keys
F1, F2, F3, F4 (digital input) and up to eight digital inputs to access
most of the menus or to activate functions immediately (e.g. Reset max
& min). Up to eight digital outputs can be assigned to a number of
actions and functions executed by the meter (e.g. Alarms, relay
acknowledgement, etc.).
Function Keys & Digital I/O Available Settings
Display Description Display Description
Rst HL Reset max & min Reset Reset menu
relay
Set 1 Set point 1 - 8 Rst Gt Reset grand total
Rly d
Rly E Enable relay Rst Lo Reset min
O Hold Relays & output hold Dsplay Display menu
d Hold
Ln1 Hi Max on Upper display Line 2 Lower display menu
Ln1 Lo
Ln1 HL Max/min Upper display Right Right arrow button
Ln2 Hi
Ln2 Lo
Ln2 HL Max/min Lower display Alm 1 Alarm 1 – 8
Ln2 gt
Contrl Control Menu F on 2 Force on relay 2
disabl
AcH Acknowledge relays F on 4 Force on relay 4
Relay menu
Disable relay
Display hold
Min on Upper display
Max on Lower display
Min on Lower display
Lower display grand total
Disable function key
Rst t
Rst Hi
Line 1
menu
up
Enter
F on 1
F on 3
Reset total
Reset max
Upper display menu
Menu button
Up arrow button
Enter button
Force on relay 1
Force on relay 3
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Button
Symbol
Description
through the User menu
METER OPERATION
The meter accepts pulses (e.g. ±40mV to± 8V), square wave (0-5, 012V, or 0-24V), open collector NPN, PNP, TTL, or switch contact
signals and displays these signals in engineering units from -99999 to
999999.
The dual-line display can be customized by the user to operate in such
a way as to satisfy a specific application. Typically the upper display is
used for the process variable; while the lower display is used for
engineering units, custom legend, total, grand total, or set point
indication.
The meter can be set up to display the pulse input on the upper display
and the Modbus input on the lower display. The relays and analog
output can be programmed to operate from the Modbus PV input.
Front Panel Buttons Operation
Press to enter or exit Programming Mode,
view settings, or exit max/min readings
Press to reset max/min readings or other
parameter/function assigned through the
User menu
Press to display max/min readings or
other parameter/function assigned
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.
Press to acknowledge relays or other
parameters/function assigned through the
User menu
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
F4 Operation
A digital input, F4, is standard on the meter. This digital input is
programmed identically to function keys F1, F2, and F3. The input is
triggered with a contact closure to COM, or with an active low signal.
During operation, F4 operates according to the way is has been
programmed in the Advanced Features – User menu.
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by the process can be
displayed either continuously or momentarily:
1. Display briefly by assigning to the F1-F3 function keys, F4 (digital
input) or to the digital inputs in the User menu.
2. Display continuously by assigning either display to max/min through
the Display menu.
Any of the F1-F3 function keys (buttons), F4 (digital input), and the
digital inputs can be programmed to reset the max & min readings. The
meters are set at the factory to display the max reading by pressing the
Up arrow/F2 button and to use the Right arrow/F1 button to access the
Reset menu.
To display max reading using function key with factory defaults:
1. Press Up arrow/F2 button to display maximum reading since the
last reset/power-up.
2. To reset max/min press Right arrow/F1 button to access the Reset
menu. The max & min displays are reset to actual values.
3. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (d Hi), Min (d Lo), or toggle between Max
and Min (d HL) every 10 seconds.
50
Model 122 Pulse Input Rate/Totalizer Instruction Manual
TROUBLESHOOTING
The rugged design and the user-friendly interface of the meter should
make it unusual for the installer or operator to refer to this section of the
manual. However, due to the many features and functions of the meter,
it’s possible that the setup of the meter does not agree with what an
operator expects to see.
If the meter is not working as expected, refer to the Diagnostics menu
and recommendations below.
Diagnostics Menu (diag)
The Diagnostics menu is located in the Advanced Features menu, to
access Diagnostics menu see Advanced Features Menu, 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 on page 44.
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.
51
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Reset Meter to Factory Defaults
When the parameters have been changed in a way that is difficult to
determine what’s happening, it might be better to start the setup
process from the factory defaults.
Instructions to load factory defaults:
1. Enter the Advanced Features menu. See Advanced Features
Menu, page 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.
52
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Parameter
Display
Default Setting
User Setting
Input type
Pulse
Total
Total enabled
Rate / total / gr. total
Filter
Hi Spd
K-factor
1.000
Number of points
2 Input 1
00000.0
Display 1
00000.0
Input 2
10000.0
Display 2
10000.0
Decimal point
1 place
Cutoff value
0.000 (disabled)
Display assignment
Upper display
Rate/Process
Display intensity
8
Total time base
Second
Total conversion
Grand total time
Grand total
Grand total reset
Manual
Display 1 analog out
0.0 Output 1 value
4.000 mA
Factory Defaults & User Settings
The following table shows the factory setting for most of the
programmable parameters on the meter. Next to the factory setting, the
user may record the new setting for the particular application.
filter
Factor
Functn
No Pts
InP 1
Dis 1
InP 2
Dis 2
Ddddd.d
CutofF
dSPLAY
Line 1
Line 2
d-Inty
T tb
T CF
T rst
GT tb
gT CF
gT rst
Dis 1
Out 1
pulse / pulse / pulse
Linear
Total value
1.000
Manual
Second
1.000
53
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Parameter
Display
Default Setting
User Setting
Display 2 analog out
1000.0
Output 2 value
20.000 mA
Source analog
Rate/process
Overrange output
21.000 mA
Underrange output
3.000 mA
Maximum output
23.000 mA
Minimum output
1.000 mA
Slave ID (Address)
Baud rate
9600 Transmit delay
50 ms
Byte-to-byte timeout
010 (0.1 sec)
F1 function key
Reset max & min
F2 function key
Upper display: Max
F4 function
Acknowledge relays
Digital input 1
Menu
Digital input 2
Right arrow
Digital input 3
Up arrow
Digital input 4
Enter
Digital output 1
Alarm 1
Digital output 2
Alarm 2
Digital output 3
Alarm 3
Digital output 4
Alarm 4
Password 1
000000 (unlocked)
Password 2
000000 (unlocked)
Password 3
000000 (unlocked)
Total password
000000 (unlocked)
Grand total
Dis 2
Out 2
output
Source
O-rang
u-rang
mAx
min
Slave
Id
247
baud
Tr dly
Parity
Parity
Even
t-byt
F1
F3 function key
F2
F3
(Hi)
Acknowledge relays
F4
dI 1
dI 2
dI 3
dI 4
dO 1
dO 2
dO 3
dO 4
Pass 1
Pass 2
Pass 3
Total
password
Gtotal
000000 (unlocked)
54
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Symptom
Check/Action
No display at all
Check power at power connector
Not able to change setup or
programming,
is displayed
Meter is password-protected, enter
Meter displays error message
Check:
2. Minimum input span requirements
Meter displays
Check:
connector
Display is unstable
Check:
3. Filter and gate values
Display response is too slow
Check filter and gate values
Display reading is not accurate
Check:
Scaling or calibration
Display does not respond to input
Check:
displaying max, min, or set point.
Display alternates between
2. Lo and a number
Press Menu to exit max/min display
Relays in manual control mode or relay
interlock switches opened.
Check:
3. Meter Slave ID and baud rate
If the display locks up or the meter
does not respond at all
Cycle the power to reboot the
Other symptoms not described
above
Call Technical Support for
Troubleshooting Tips
Locd
during calibration (Error)
999999
-99999
changes, reading a fixed number
1. Hi and a number
Flashing relay status LEDs
Meter not communicating with
application programs
correct six-digit password to unlock
1. Signal connections
1. Input selected in Setup menu
2. Corresponding signal at Signal
1. Input signal stability and value
2. Display scaling vs. input signal
Display assignment, it might be
readings.
1. Serial adapter and cable
2. Serial settings
microprocessor.
assistance.
Note: Certain sequences of events can cause unexpected results. To
solve these issues, it is best to start fresh from factory defaults and map
changes ahead of time, rather than at random.
55
Model 122 Pulse Input Rate/Totalizer Instruction Manual
Contact Max Machinery
For Technical Support
Call: (707) 433-2662
or go to: www.maxmachinery.com
LIM6300MM_D
SFT039 Ver 4.000 & up
08/16
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