Max 122 User Manual
Model 122 Pulse Input Rate/Totalizer
Instruction Manual
• 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.
© 2015-2016 Max Machinery Incorporated. All rights reserved.
www.maxmachinery.com
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Table of Contents
INTRODUCTION ------------------------------------------------------------ 5
ORDERING INFORMATION --------------------------------------------- 5
SPECIFICATIONS ---------------------------------------------------------- 6
General ------------------------------------------------------------------------------- 6
Rate Input --------------------------------------------------------------------------- 7
Rate/Totalizer ---------------------------------------------------------------------- 8
Isolated 4-20 mA Transmitter Output -------------------------------------- 9
Modbus® RTU Serial Communications ---------------------------------- 10
MeterView Pro Software ------------------------------------------------------ 10
COMPLIANCE INFORMATION ---------------------------------------- 11
Safety ------------------------------------------------------------------------------- 11
Electromagnetic Compatibility --------------------------------------------- 11
SAFETY INFORMATION ------------------------------------------------ 12
INSTALLATION ------------------------------------------------------------ 13
Unpacking ------------------------------------------------------------------------- 13
Panel Mounting Instructions ------------------------------------------------ 13
Transmitter Supply Voltage Selection (P+, P-) ----------------------- 15
Connections ---------------------------------------------------------------------- 15
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
K-Factor Calibration (Factor) ----------------------------------------- 31
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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
TROUBLESHOOTING ---------------------------------------------------- 51
Diagnostics Menu (diag) ----------------------------------------------------- 51
Determining Software Version -------------------------------------------- 51
Reset Meter to Factory Defaults ------------------------------------------- 52
Factory Defaults & User Settings ----------------------------------------- 53
Troubleshooting Tips --------------------------------------------------------- 55
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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
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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
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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
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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, or dddddd
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.
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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
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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)
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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.
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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
A B Tolerances:
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.
• 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.
Figure 1: 1/8 DIN Panel Cutout and Mounting
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Model 122 Pulse Input Rate/Totalizer Instruction Manual
Mounting Dimensions
Figure 2: Meter Dimensions - Side View
Figure 3: Meter Dimensions - Top View
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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.
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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
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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
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