Omega Products DP40-9SC2 Installation Manual

®

Made in the USA

User ’s Guide

http://www.omega.com

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DPF400 Series

High Accuracy Frequency or

Analog Input Flow Indicator

®

®

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It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.
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The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for
any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.

This device is marked with the international caution symbol. It is important to read the Setup Guide before
installing or commissioning this device as it contains important information relating to safety and EMC.

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Table of Contents -

HOW TO USE THIS MANUAL

This manual is organized to follow a sequence of setting up the
meter, configuring it, and operating it. The table of contents
reflects this sequence. The contents also show that the manual
contains a lot of information; we have taken care to answer likely
questions and provide all the information you may need. We have
purposely included all sections in the contents, to allow you to use
it as an index–to easily pinpoint specific information and go

directly to it.

Page

SAFETY CONSIDERATIONS.......................................................................vi

SECTION 1 INTRODUCTION

1.1 Description ...................................................................................1

1.2 Features.........................................................................................1

1.3 Meter Modes.................................................................................2

1.3.1 Rate Meter/Totalizer.....................................................................2

1.3.2 Rate Meter/Totalizer/Square Root Extractor ...............................2

1.3.3 Batch Controller...........................................................................2

1.3.4 Clock.............................................................................................2

1.4 Optional Boards Overview...........................................................3

1.4.1 Isolated Pulse Input Board............................................................3

1.4.2 Isolated Analog Input Board........................................................3

1.4.3 Isolated Analog Output Board.....................................................4

1.4.4 Isolated Parallel BCD Output Board............................................4

1.4.5 Dual Relay Output and 4 Relay Output Board............................4

1.4.6 Isolated RS-232 Serial Communications Board ..........................4

1.4.7 Isolated RS-485 Serial Communications Board .........................5

1.5 Available Models and Options.....................................................5

Table of
Contents

SECTION 2 SETUP

2.1 Unpacking ....................................................................................8

2.2 Safety Precautions ........................................................................10

2.2.1 Power Voltage...............................................................................10

2.2.2 Power Wiring................................................................................11

2.3 Assembly/Disassembly ..................................................................11

i

Table of

Contents

Page

2.3.1 Opening the Meter.......................................................................11

2.3.2 Checking and Installing Jumpers.................................................15

2.3.2.1 Main Board Jumpers .....................................................................16

2.3.2.2 Optional Input and Output Board Jumper Information .............18

2.3.3 Installing Optional Boards ...........................................................19

2.3.3.1 Isolated Pulse Input Board............................................................21

2.3.3.2 Isolated Analog Input Board........................................................22

2.3.3.3 Isolated Analog Output Board .....................................................23

2.3.3.4 Isolated Parallel BCD (Binary-Coded Decimal) Output Board ..24

2.3.3.5 Dual Relay and 4 Relay Output Board ........................................25

2.3.3.6 Isolated RS-232 Serial Communications Board ..........................25

2.3.3.7 Isolated RS-485 Serial Communications Board ..........................26

2.3.4 Reinserting the Main Board Assembly into the Case .................26

2.3.5 Wiring...........................................................................................26

2.3.5.1 P1 - AC Power Wiring.................................................................27

2.3.5.2 Battery Backup Connections........................................................27

2.3.5.3 P2 - Control Input/Output Wiring ..............................................28

2.3.5.4 Basic Meter Input Wiring.............................................................29

2.3.5.5 Isolated Pulse Input Board Wiring...............................................29

2.3.5.6 Isolated Analog Input Board Wiring ...........................................29

2.3.5.7 Isolated Analog Output Board Wiring.........................................29

2.3.5.8 Isolated Parallel BCD Output Board Wiring...............................29

2.3.5.9 Dual Relay and 4 Relay Output Board Wiring............................30

2.3.5.10 Isolated RS-232 or RS-485 Serial Comm. Board Wiring............30

2.4 Panel-Mount Assembly ................................................................30

SECTION 3 FRONT AND REAR FEATURES

3.1 Front-Panel Displays and Buttons................................................33

3.2 Rear Connectors...........................................................................35

SECTION 4 BASIC CONCEPTS AND APPROACHES

TO SETUP AND CONFIGURATION

4.1 Choosing an Operating Mode......................................................39

4.2 Mode-Associated Measurements..................................................39

4.3 Using Scale Factors ......................................................................40

4.4 Using Offsets.................................................................................40

4.5 Automatic Scale and Offset.........................................................40

4.6 Overflow Values and Exponential Format...................................41

4.7 Negative-True Logic.....................................................................41

4.8 Different Meter Modes.................................................................41

4.9 Setpoints.......................................................................................42

4.9.1 Setpoint Assignments...................................................................42

4.9.2 Configuring Setpoints ..................................................................44

ii

Page

4.10 Resets and Stops...........................................................................44

4.10.1 Power-On (Hard) Reset ...............................................................44

4.10.2 Configuration (Cold) Reset .........................................................44

4.10.3 Setpoint-Only Reset.....................................................................45

4.10.4 Rate and Sq Rt Mode Resets........................................................45

4.10.4.1 RESET-A ......................................................................................45

4.10.4.2 RESET-B.......................................................................................46

4.10.4.3 RESET-C.......................................................................................46

4.10.4.4 Front-Panel RESET......................................................................46

4.10.5 Batch Mode Resets.......................................................................47

4.10.5.1 RESET-A ......................................................................................47

4.10.5.2 RESET-B.......................................................................................47

4.10.5.3 RESET-C.......................................................................................47

4.10.5.4 Front-Panel RESET......................................................................48

4.10.5.5 Autoreset ......................................................................................48

4.10.6 STOP ............................................................................................48

4.11 Counting Up or Down .................................................................48

4.11.1 Counting Up.................................................................................49

4.11.2 Counting Down............................................................................50

4.12 An Example Showing Setpoint and Reset Control ....................52

Table of
Contents

SECTION 5 CONFIGURING THE METER

5.1 Parameters, Choices, and Settings ...............................................54

5.2 The Basics of Configuration.........................................................55

5.3 Lockouts........................................................................................56

5.3.1 Lockouts and Corresponding Actions..........................................57

5.3.2 Setting Lockouts...........................................................................60

5.3.3 Removing the S1-A Jumper for Added Security.........................61

5.4 Other Meter Parameters...............................................................61

5.4.1 MODE (Operating Mode) ...........................................................61

5.4.2 CNFG 1 through CNFG 4 (Configuration Parameters)

Rate, Sq Rt, Batch........................................................................61

5.4.3 AVG.CNF (Running Average Configuration) Rate, Sq Rt........69

5.4.4 IN.SC.OF (Input Scale and Offset) Rate, Sq Rt, Batch .............70

5.4.5 OT.SC.OF (Output Scale and Offset) Rate, Sq Rt, Batch .........71

5.4.6 RTE DP (Rate Decimal Point) Rate, Sq Rt ................................73

5.4.7 RTE OF (Rate Offset) Rate, Sq Rt..............................................73

5.4.8 RTE SC (Rate Scale) Rate, Sq Rt...............................................74

5.4.9 TOT DP (Total Decimal Point) Rate, Sq Rt, Batch...................74

5.4.10 TOT OF (Total Offset) Rate, Sq Rt, Batch ................................75

5.4.11 TOT SC (Total Scale) Rate, Sq Rt, Batch..................................75

5.4.12 AL TI (Alarm Time) Rate, Sq Rt, Batch ....................................76

5.4.13 GATE T (Gate Time) Rate..........................................................76

iii

Table of

Contents

Page

5.4.14 BAUD, SER.CNF, DAT FT, BUS FT, ADDRES, SER TI
(Baud Rate, Serial Configuration, Data Format, Bus Format,

Device Address, Serial Time) Rate, Sq Rt, Batch ......................77

5.4.15 SET TI (Set Time) Rate, Sq Rt, Batch ......................................80

5.4.16 BAT DP (Batch Decimal Point) Batch .......................................81

5.4.17 B LOAD (Batch Load) Batch......................................................81

5.4.18 BAT SC (Batch Scale) Batch ......................................................82

5.4.19 CAL VZ, CAL VS, CALmAZ, and CALmAS
(Calibrate Voltage Zero, Calibrate Voltage Span,

Calibrate milliAmp Zero, Calibrate milliAmp Span).................82

5.5 Step-by-Step Programming Example 1:

Rate Mode; Shaft RPM from a Gear-Tooth Detector .................82

5.5.1 Determining the Rate Scale (RTE SC).......................................83

5.5.2 Configuring the Meter..................................................................83

5.6 Step-by-Step Programming Example 2:
Linear Flow; Adding TOTAL to RATE

with Excitation from the Basic Meter..........................................85

5.6.1 Determining the Rate Decimal Point (RTE DP) and

Rate Scale (RTE SC)...................................................................85

5.6.2 Determining the Total Decimal Point (TOT DP) and

Total Scale (TOT SC) .................................................................86

5.6.3 Configuring the Meter..................................................................86

SECTION 6 OPERATING THE METER

6.1 Rate Mode ....................................................................................88

6.2 Sq Rt Mode...................................................................................89

6.3 Batch Mode ..................................................................................89

APPENDICES

A Basic Meter: General Information, Specifications,

Jumper Configuration, and Input Connections ..........................91

B Isolated Pulse Input Board: General Information,

Specifications, Jumper Configuration, and Wiring .....................97

C Isolated Analog Input Board: General Information,

Specifications, Jumper Configuration,

Wiring, and Calibration...............................................................107

D Isolated Analog Output Board: General Information,

Specifications, Wiring, and Calibration ......................................118

E Isolated Parallel BCD Output Board: General Information,

Specifications, Jumper Configuration, And Wiring....................122

F Dual Relay and 4 Relay Output Board: General Information,

Specifications, Jumper Configuration, and Wiring .....................128

iv

Page

G Isolated RS-232 and RS-485 Serial Communications Boards:

General Information and Specifications......................................131

H Error Messages ..............................................................................132

J Factory Preset Configuration Settings/ User Settings .................134

K Ramp Specifications.....................................................................147

L Specifications................................................................................149

Table of
Contents

vv

Safety

Considerations

SAFETY CONSIDERATIONS

This device is marked with the international Caution symbol. It is important to read this

manual before installing or commissioning this device as it contains important information
relating to Safety and EMC (Electromagnetic Compatibility).

Unpacking & Inspection

Unpack the instrument and inspect for obvious shipping damage. Do not attempt to operate the

Note

This instrument has no power-on switch. An external switch or circuit-breaker shall be included in the
building installation as a disconnecting device. It shall be marked to indicate this function, and it shall be
in close proximity to the equipment within easy reach of the operator. The switch or circuit-breaker shall
not interrupt the Protective Conductor (Earth wire), and it shall meet the relevant requirements of
IEC 947–1 and IEC 947-3 (International Electrotechnical Commission). The switch shall not be
incorporated in the mains supply cord.

Furthermore, to provide protection against excessive energy being drawn from the mains supply in case
of a fault in the equipment, an overcurrent protection device shall be installed.

unit if damage is found.

☞

This instrument is a panel mount device protected in accordance with Class I of EN 61010
(115/230 AC power connections). Installation of this instrument should be done by Qualified
personnel. In order to ensure safe operation, the following instructions should be followed.

Note

•The Protective Conductor must be connected for safety reasons. Check that the power cable
has the proper Earth wire, and it is properly connected. It is not safe to operate this unit
without the Protective Conductor Terminal connected.

• Do not exceed voltage rating on the label located on the top of the instrument housing.

☞

• Always disconnect power before changing signal and power connections.

• Do not use this instrument on a work bench without its case for safety reasons.

• Do not operate this instrument in flammable or explosive atmospheres.

• Do not expose this instrument to rain or moisture.

• Unit mounting should allow for adequate ventilation to ensure instrument does not exceed
operating temperature rating.

• Use electrical wires with adequate size to handle mechanical strain and power
requirements. Install without exposing bare wire outside the connector to minimize
electrical shock hazards.

EMC Considerations

•Whenever EMC is an issue, always use shielded cables.

•Never run signal and power wires in the same conduit.

•Use signal wire connections with twisted-pair cables.

•Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems persist.

vivi

l. Introduction

1.1 DESCRIPTION

The Counter Timer is a multifunctional panel meter that can
measure counts, rates, flows, times, totals and batches from pulse
and analog input sources over the range of 0.2 to 20,000 Hz.

The meter can function in four different modes and be applied to a
wide range of applications, serving functions as simple as displaying
incoming pulses–or as complex as detecting out-of-limits
conditions, triggering alarms, and channeling communications for
a process control system.

The front panel displays values and messages with six, 14-segment
LEDs, indicates which mode-associated measurement is being
displayed through three Measurement LEDs, and indicates alarm
status through four Setpoint LEDs. Five buttons below the LED
display allow easy front-panel configuration and access to the
meter’s many features. These features can also be accessed through
digital communications.

1

Introduction

The meter can be mounted in a panel or simply placed on a bench top.

1.2 FEATURES

The following list outlines the meter’s features.

• Six-digit display

• Microprocessor-based, with nonvolatile memory-no battery
backup required

• Configurable via front-panel push buttons and/or through
RS-232 or RS-485 ports

• High accuracy

• Large digital offset enabling easy scaling in engineering units

• Five open-collector outputs for RATE, TOTAL, BATCH count,
BAT NO (Number of Batches), and TIME

• Programmable decimal point selection

• Read/Display/Output rates up to 25 per second

• Plug-in input and output optional boards

1

1

1.3 METER MODES

Introduction

The meter can be configured to operate in four different modes.
These are Rate Meter/Totalizer (Rate), Rate Meter/Totalizer/
Square Root Extractor (Sq Rt), Batch Controller (Batch), and
Clock (C).

1.3.1 RATE METER/TOTALIZER

As a rate meter/totalizer, the meter measures the rate, totalizes and
displays pulses in any engineering units required, and provides
unregulated sensor excitation. The meter can also provide running
averages and process time in HH:MM:SS format in this mode.

With the addition of the Isolated Analog Input Board, analog signals
can be received and displayed in the required engineering units.

1.3.2 RATE METER/TOTALIZER/SQUARE ROOT EXTRACTOR

As a rate meter/totalizer/Square Root Extractor, the meter can
accept dc signals from any typical differential flow transmitter and
extract the square root to provide highly accurate flow values.
Digital calculation ensures accurate readings–which can be dis­played in any engineering units desired.

This mode requires the Isolated Analog Input Board.

1.3.3 BATCH CONTROLLER

As a batch controller, the meter can count the batch, number of
batches completed, and the grand total of pulses received. In
addition, it has an internal timer for process time displayed in
HH:MM:SS format. Any of the above functions can be displayed
during the process without interrupting or stopping the process.

1.3.4 CLOCK

As a clock, the meter can function in real, 24-hour time mode
using the HH:MM:SS display format. It can also function as a
99-hour process timer. Time is derived from the power line
frequency, 50 or 60 Hz, which ensures accuracy. If power fails and
the meter is equipped with a backup battery, the clock function
continues working (although the display will not be lit). Refer to
Section 2.3.5.2 for information on battery backup.

2

1.4 OPTIONAL BOARDS OVERVIEW

1

The meter is designed to accommodate numerous optional boards.

These boards transform the meter into a single instrument that
“can do it all.” On the input end, they allow the meter to accept
signals from a wider variety of sources, and on the output end, to
communicate with, or control a wide variety of other devices.

1.4.1 ISOLATED PULSE INPUT BOARD

The Isolated Pulse Input Board is a signal conditioning board that
allows the meter to accept low- and high-level input signals from
sources whose pulses may be too weak for the Main Board of the
meter to handle, or that need selectable hysteresis and/or regulated
excitation. This board is used mainly for weak magnetic pick-ups,
high-level line voltage sources, and NAMUR sources.

If this board is used, the Isolated Analog Input Board cannot be used.

(See Appendix B for specifications, jumper configuration, wiring,
and applications for the Isolated Pulse Input Board.)

1.4.2 ISOLATED ANALOG INPUT BOARD

Introduction

The Isolated Analog Input Board is a signal conditioning board
that converts analog signals to frequency and allows the meter to
accept input signals from non-pulsed or direct current sources. This
board is often used with differential pressure flow transmitters to
provide linear flow values. (First-time installation requires calibra­tion using calibration data on the back of the board.)

If this board is used, the Isolated Pulse Input Board cannot be used.

(See Appendix C for specifications, jumper configuration, wiring,
and applications for the Isolated Analog Input Board.)

3

1

Introduction

1.4.3 ISOLATED ANALOG OUTPUT BOARD

The Isolated Analog Output Board converts display readings into
voltage or current output. This board is often used as a control
board in process applications. (First-time installation requires
calibration using calibration data on the back-the solder or out­board side of the board.)
(See Appendix D for specifications, jumper configuration, wiring,
calibration, and applications for the Isolated Analog Output Board.)

1.4.4 ISOLATED PARALLEL BCD (BINARY-CODED DECIMAL) OUTPUT BOARD

The Isolated Parallel BCD Output Board produces binary-coded
decimal output for direct communication with a printer or with an
intelligent device such as a PLC (Programmable Logic Controller).

If this board is used, the Dual Relay Output Board cannot be used.

(See Appendix E for specifications, jumper configuration, wiring,
and applications for the Isolated Parallel BCD Output Board.)

1.4.5 DUAL RELAY OUTPUT AND 4 RELAY OUTPUT BOARD

The Dual Relay Output and 4 Relay Output Board enables
setpoint-triggered switching to an external device.

If either option board is used, the Isolated Parallel BCD Output
Board cannot be used.

(See Appendix F for specifications, jumper configuration, wiring,
and applications for the Relay Output Board.)

1.4.6 ISOLATED RS-232 SERIAL COMMUNICATIONS BOARD

The Isolated RS-232 Serial Communications Board provides an
isolated digital communications channel between a single meter
and a computer, serial printer, or other device.

If this board is used, the RS-485 Serial Communications Board
cannot be used.

(See Appendix G for specifications, jumper configuration, wiring,
and applications for the Isolated RS-232 Serial Communications
Board.)

4

1.4.7 ISOLATED RS-485 SERIAL COMMUNICATIONS BOARD

The Isolated RS-485 Serial Communications Board provides an
isolated digital communications channel where multiple meters
(addressed from 0 to 199) can communicate with a single computer.

If this board is used, the RS-232 Serial Communications Board
cannot be used.

(See Appendix G for specifications, jumper configuration, wiring, and
applications for the Isolated RS-485 Serial Communications Board.)

1.5 AVAILABLE MODELS AND OPTIONS

The following models and options are available. Optional boards
are either installed at the time of purchase, or available as separate
items and installed by the user after purchase.

BASIC MODELS AND INPUT OPTIONS

MODEL
NUMBER DESCRIPTION

DPF401 No optional input board; Basic Meter accepts low

level and high level pulses from TTL/CMOS
sources, open collector outputs and contact closures;
provides 14-20 V unregulated sensor excitation

1

Introduction

DPF402 Isolated Pulse Input Board. Single-input for magnetic

pick-ups with low- and high-level signals; direct
connection to NPN, PNP, or NAMUR sensors.
Includes electrically floating, regulated sensor excita­tion rated 12.6 V @ 70 mA or 8.2 V or 5 V

DPF403 Isolated Analog Input Board. Input ranges of

0-1 mA, 4-20 mA, 0-5 V, 1-5 V, and 0-10 V are
jumper selectable. Standard factory default
calibration: 4-20 mA dc = 0-10000

FOR OPTIONS ADD SUFFIX TO MODEL NUMBER

-GR Green LED display

-230V 230 V ac, power

5

1

Introduction

CONTROL/BCD OUTPUT OPTIONS

MODEL
NUMBER DESCRIPTION

DP40-B Isolated Parallel BCD (Binary-Coded Decimal)

Output Board

DP40-R Dual Relay Output Board; Two 7-amp,

Form-C Relays

DP40-R4 4 Relay Output Board; Two 7-amp & two 1 amp

Form-C Relays.

NOTE: Choose only one Control/BCD output option per meter.
A 40-socket plug is included with the BCD option.

ANALOG OUTPUT OPTIONS

MODEL
NUMBER DESCRIPTION

DP40-A Isolated Analog Output Board: Configurable output;

0-20 mA, 4-20 mA, 0-5 V, 0-10 V. Standard factory
default calibration: 0-10000 = 4-20 mA dc

DATA COMMUNICATIONS OPTIONS

MODEL
NUMBER DESCRIPTION

DPF400-S2 Isolated RS-232 Serial Communications Board*
DPF400-S4 Isolated RS-485 Serial Communications Board**

NOTE: Choose only one option per meter. Both computer
communications come with a 6-foot communications cable with
phone plug termination.

* We recommend purchase of 9SC2 or 25SC2 (see OPTIONS
below)
** We recommend purchase of 9SC4 or 25SC4 (see OPTIONS
below)

6

OPTIONS

MODEL
NUMBER DESCRIPTION

DP40-9SC2 9-pin Serial Connector for RS-232 port
DP40-9SC4 9-pin Serial Connector for RS-485 port
DP40-25SC2 25-pin Serial Connector for RS-232 port
DP40-25SC4 25-pin Serial Connector for RS-485 port

1

Introduction

7

2

Setup

2. Setup

2.1 UNPACKING

Unpack all items and make sure that every item on the packing list
is present. The items you should receive are listed below. If
something is missing, use the phone number for the Customer
Service Department nearest you.

Also, inspect the shipping container and enclosed equipment for any
signs of damage. Take particular note of any evidence of rough
handling in transit. Immediately report any damage to the shipping
agent.

NOTE: The shipping agent will not honor any claims unless all
shipping material is saved for their examination. After examining
and removing contents, save all packing material and containers in
the event that reshipment is required.

You should receive the following items :

QTY DESCRIPTION ILLUSTRATION

1 Basic meter with

main board (and
optional boards if
ordered by number);
in plastic case with
sleeve, panel
gasket, two
thumbnuts

1 Front-panel

button cover available
with return of the
postcard (see meter box)

8

QTY DESCRIPTION ILLUSTRATION

1 Orange, 3-socket

power connector (P1);
for AC input

1 Gray, 3-socket

input connector (P3);
for signal input

1 Rear cover with

holddown screw

1 20-Socket Ribbon

Connector (P2)

L

2

1
2

N

3

1
2
3

Setup

2 Panel-mount gasket

(1 spare)

1 Operator’s manual

9

2.2 SAFETY PRECAUTIONS

2

Setup

The meter is protected in accordance with Class I of EN61010.
Refer to Safety Considerations page.

WARNING: If your meter is to be wired to sensors or to control

!

2.2.1 POWER VOLTAGE

inputs that could have hazardous potentials, these potentials will be
carried to the 20-pin output connector (P2) at the rear. They will
also be present on the meter’s circuit boards. Follow all instructions
carefully, inserting the electronics into the case and installing connec­tors BEFORE connecting the meter to any source of power.

DO NOT contact any exposed metal parts, install optional board(s),
change jumpers, or in any way disassemble or assemble the meter
while it is connected to AC voltage.

Note the following information and guidelines for safe operation of
your meter:

Your power source voltage rating should agree with the voltage
under which the meter has been configured to operate. The first
thing you should do is verify this.

The meter’s operating voltage is shown in the VOLTS: entry of
the ID and Serial Number Label. Figure 2-1 shows a copy of this
label. It is located on the meter packing box and is clearly visible.
(Another label is also affixed to the meter case.)

MODEL:
SERIAL NO.:
PART NO.:
VOLTS: WATTS:

Figure 2-1. ID and Serial Number Label showing the Meter's
operating voltage.

10

2.2.2 POWER WIRING

CAUTION: The meter has no power-on switch; it will be ON

!

when power is applied.

Section 2.3.5 shows you how to wire not only the AC power
connector, but all other connectors as well.

2.3 ASSEMBLY/DISASSEMBLY

2.3.1 OPENING THE METER

Your meter is fully assembled, but not wired. In most cases, if you
have ordered optional boards with the meter, these boards will
already be installed.

You will need to remove only the rear cover to complete wiring,
but you will have to open the meter to do one or more of the
following:

WARNING: You must disconnect and turn-off the power and

!

connector signals before accessing the unit and installing optional
boards. Failure to do so may result in injury!

2

Setup

a. Check or reconfigure the Transformer Jumpers on the Main

Board so that they correspond to your line voltage (W1 and W2
for 115 V ac, or W3 for 230 V ac). See Section 2.3.2.1.

b. Access jumpers on the Main and optional boards.

See Section 2.3.2.

c. Install optional boards. See Section 2.3.3.

11

2

Setup

REAR
PROTECTIVE
COVER

COVER
MOUNTING
SCREW

THUMBNUTS

GASKET

SIGNAL
CONNECTOR
BOARD

SLEEVE

AC POWER BOARD

MAIN BOARD ASSY

CASE

BEZEL

Figure 2-2. Exploded View of the Meter

12

Using Figures 2-2 as a guide, follow these simple instructions to
open the meter:

2

!

IMPORTANT: Turn-off the power and input signals from the
unit before proceeding. Failure to do so may result in injury!

1. Remove the cover mounting screw that secures the rear protective
cover to the meter, and remove the Rear Protective Cover.

If you are simply wiring the meter–but not checking jumpers or

installing or removing boards–this is as far as the meter needs to
be disassembled. Go to Section 2.3.5.

2. Remove all wiring connectors from the rear of the meter.

3. Remove the two thumbnuts that secure the case to the sleeve.

4. Remove the sleeve completely by sliding it back from the front
bezel.

Setup

13

l. Introduction

1.1 DESCRIPTION

The Counter Timer is a multifunctional panel meter that can
measure counts, rates, flows, times, totals and batches from pulse
and analog input sources over the range of 0.2 to 20,000 Hz.

The meter can function in four different modes and be applied to a
wide range of applications, serving functions as simple as displaying
incoming pulses–or as complex as detecting out-of-limits
conditions, triggering alarms, and channeling communications for
a process control system.

The front panel displays values and messages with six, 14-segment
LEDs, indicates which mode-associated measurement is being
displayed through three Measurement LEDs, and indicates alarm
status through four Setpoint LEDs. Five buttons below the LED
display allow easy front-panel configuration and access to the
meter’s many features. These features can also be accessed through
digital communications.

1

Introduction

The meter can be mounted in a panel or simply placed on a bench top.

1.2 FEATURES

The following list outlines the meter’s features.

• Six-digit display

• Microprocessor-based, with nonvolatile memory-no battery
backup required

• Configurable via front-panel push buttons and/or through
RS-232 or RS-485 ports

• High accuracy

• Large digital offset enabling easy scaling in engineering units

• Five open-collector outputs for RATE, TOTAL, BATCH count,
BAT NO (Number of Batches), and TIME

• Programmable decimal point selection

• Read/Display/Output rates up to 25 per second

• Plug-in input and output optional boards

1

1

1.3 METER MODES

Introduction

The meter can be configured to operate in four different modes.
These are Rate Meter/Totalizer (Rate), Rate Meter/Totalizer/
Square Root Extractor (Sq Rt), Batch Controller (Batch), and
Clock (C).

1.3.1 RATE METER/TOTALIZER

As a rate meter/totalizer, the meter measures the rate, totalizes and
displays pulses in any engineering units required, and provides
unregulated sensor excitation. The meter can also provide running
averages and process time in HH:MM:SS format in this mode.

With the addition of the Isolated Analog Input Board, analog signals
can be received and displayed in the required engineering units.

1.3.2 RATE METER/TOTALIZER/SQUARE ROOT EXTRACTOR

As a rate meter/totalizer/Square Root Extractor, the meter can
accept dc signals from any typical differential flow transmitter and
extract the square root to provide highly accurate flow values.
Digital calculation ensures accurate readings–which can be dis­played in any engineering units desired.

This mode requires the Isolated Analog Input Board.

1.3.3 BATCH CONTROLLER

As a batch controller, the meter can count the batch, number of
batches completed, and the grand total of pulses received. In
addition, it has an internal timer for process time displayed in
HH:MM:SS format. Any of the above functions can be displayed
during the process without interrupting or stopping the process.

1.3.4 CLOCK

As a clock, the meter can function in real, 24-hour time mode
using the HH:MM:SS display format. It can also function as a
99-hour process timer. Time is derived from the power line
frequency, 50 or 60 Hz, which ensures accuracy. If power fails and
the meter is equipped with a backup battery, the clock function
continues working (although the display will not be lit). Refer to
Section 2.3.5.2 for information on battery backup.

2

1.4 OPTIONAL BOARDS OVERVIEW

1

The meter is designed to accommodate numerous optional boards.

These boards transform the meter into a single instrument that
“can do it all.” On the input end, they allow the meter to accept
signals from a wider variety of sources, and on the output end, to
communicate with, or control a wide variety of other devices.

1.4.1 ISOLATED PULSE INPUT BOARD

The Isolated Pulse Input Board is a signal conditioning board that
allows the meter to accept low- and high-level input signals from
sources whose pulses may be too weak for the Main Board of the
meter to handle, or that need selectable hysteresis and/or regulated
excitation. This board is used mainly for weak magnetic pick-ups,
high-level line voltage sources, and NAMUR sources.

If this board is used, the Isolated Analog Input Board cannot be used.

(See Appendix B for specifications, jumper configuration, wiring,
and applications for the Isolated Pulse Input Board.)

1.4.2 ISOLATED ANALOG INPUT BOARD

Introduction

The Isolated Analog Input Board is a signal conditioning board
that converts analog signals to frequency and allows the meter to
accept input signals from non-pulsed or direct current sources. This
board is often used with differential pressure flow transmitters to
provide linear flow values. (First-time installation requires calibra­tion using calibration data on the back of the board.)

If this board is used, the Isolated Pulse Input Board cannot be used.

(See Appendix C for specifications, jumper configuration, wiring,
and applications for the Isolated Analog Input Board.)

3

1

Introduction

1.4.3 ISOLATED ANALOG OUTPUT BOARD

The Isolated Analog Output Board converts display readings into
voltage or current output. This board is often used as a control
board in process applications. (First-time installation requires
calibration using calibration data on the back-the solder or out­board side of the board.)
(See Appendix D for specifications, jumper configuration, wiring,
calibration, and applications for the Isolated Analog Output Board.)

1.4.4 ISOLATED PARALLEL BCD (BINARY-CODED DECIMAL) OUTPUT BOARD

The Isolated Parallel BCD Output Board produces binary-coded
decimal output for direct communication with a printer or with an
intelligent device such as a PLC (Programmable Logic Controller).

If this board is used, the Dual Relay Output Board cannot be used.

(See Appendix E for specifications, jumper configuration, wiring,
and applications for the Isolated Parallel BCD Output Board.)

1.4.5 DUAL RELAY OUTPUT AND 4 RELAY OUTPUT BOARD

The Dual Relay Output and 4 Relay Output Board enables
setpoint-triggered switching to an external device.

If either option board is used, the Isolated Parallel BCD Output
Board cannot be used.

(See Appendix F for specifications, jumper configuration, wiring,
and applications for the Relay Output Board.)

1.4.6 ISOLATED RS-232 SERIAL COMMUNICATIONS BOARD

The Isolated RS-232 Serial Communications Board provides an
isolated digital communications channel between a single meter
and a computer, serial printer, or other device.

If this board is used, the RS-485 Serial Communications Board
cannot be used.

(See Appendix G for specifications, jumper configuration, wiring,
and applications for the Isolated RS-232 Serial Communications
Board.)

4

1.4.7 ISOLATED RS-485 SERIAL COMMUNICATIONS BOARD

The Isolated RS-485 Serial Communications Board provides an
isolated digital communications channel where multiple meters
(addressed from 0 to 199) can communicate with a single computer.

If this board is used, the RS-232 Serial Communications Board
cannot be used.

(See Appendix G for specifications, jumper configuration, wiring, and
applications for the Isolated RS-485 Serial Communications Board.)

1.5 AVAILABLE MODELS AND OPTIONS

The following models and options are available. Optional boards
are either installed at the time of purchase, or available as separate
items and installed by the user after purchase.

BASIC MODELS AND INPUT OPTIONS

MODEL
NUMBER DESCRIPTION

DPF401 No optional input board; Basic Meter accepts low

level and high level pulses from TTL/CMOS
sources, open collector outputs and contact closures;
provides 14-20 V unregulated sensor excitation

1

Introduction

DPF402 Isolated Pulse Input Board. Single-input for magnetic

pick-ups with low- and high-level signals; direct
connection to NPN, PNP, or NAMUR sensors.
Includes electrically floating, regulated sensor excita­tion rated 12.6 V @ 70 mA or 8.2 V or 5 V

DPF403 Isolated Analog Input Board. Input ranges of

0-1 mA, 4-20 mA, 0-5 V, 1-5 V, and 0-10 V are
jumper selectable. Standard factory default
calibration: 4-20 mA dc = 0-10000

FOR OPTIONS ADD SUFFIX TO MODEL NUMBER

-GR Green LED display

-230V 230 V ac, power

5

1

Introduction

CONTROL/BCD OUTPUT OPTIONS

MODEL
NUMBER DESCRIPTION

DP40-B Isolated Parallel BCD (Binary-Coded Decimal)

Output Board

DP40-R Dual Relay Output Board; Two 7-amp,

Form-C Relays

DP40-R4 4 Relay Output Board; Two 7-amp & two 1 amp

Form-C Relays.

NOTE: Choose only one Control/BCD output option per meter.
A 40-socket plug is included with the BCD option.

ANALOG OUTPUT OPTIONS

MODEL
NUMBER DESCRIPTION

DP40-A Isolated Analog Output Board: Configurable output;

0-20 mA, 4-20 mA, 0-5 V, 0-10 V. Standard factory
default calibration: 0-10000 = 4-20 mA dc

DATA COMMUNICATIONS OPTIONS

MODEL
NUMBER DESCRIPTION

DPF400-S2 Isolated RS-232 Serial Communications Board*
DPF400-S4 Isolated RS-485 Serial Communications Board**

NOTE: Choose only one option per meter. Both computer
communications come with a 6-foot communications cable with
phone plug termination.

* We recommend purchase of 9SC2 or 25SC2 (see OPTIONS
below)
** We recommend purchase of 9SC4 or 25SC4 (see OPTIONS
below)

6

OPTIONS

MODEL
NUMBER DESCRIPTION

DP40-9SC2 9-pin Serial Connector for RS-232 port
DP40-9SC4 9-pin Serial Connector for RS-485 port
DP40-25SC2 25-pin Serial Connector for RS-232 port
DP40-25SC4 25-pin Serial Connector for RS-485 port

1

Introduction

7

2

6. Using Figure 2-4 as a guide, bend the side-panel detents on the
case outward and pull the board assembly out of the case by the
mounting screw stem.

Setup

These six steps are known as “accessing the Main Board assembly.”

ID AND SERIAL
NUMBER LABEL

SIGNAL INPUT
JUMPER LABEL

Figure 2-4. Removing the Main Board Assembly from the Case

TO INSTALL

TO REMOVE

BEND DETENTS OUTWARD
TO INSTALL MAIN BOARD

CASE

MOUNTING
SCREW
STEM

MAIN BOARD ASSY

The meter is now disassembled to the point where you can check
and configure jumpers and install boards.

NOTE: When the sleeve is removed from the case in Step 5
above, the Connector Label on the case will be exposed.
See Figure 2-5. Use this label for reference when wiring or con­necting plugs.

14

P2/CABLE CONNECTOR

ALARM 1 OUTPUT

ALARM 3 OUTPUT

ALARM, BATTERY RETURN

P4/RS-232

6
5
4
3
2
1

P1/AC PWR

1
2
3

TWICE LINE FREQ

1 1

N/C
COMM RTN
RX
TX
RTS
N/C

{

LINE
NEUTRAL
AC GND

RESET-A

RESET-B

TEST TX

PULSE OUTPUT

RESET-C

STOP

P4/RS-485

6
5
4
3
2
1

P6/RELAY

1
2
3

1
3
5
7
9

10

11

12

13

14

15

16

17

18

19

20

N/C
B RX
A RX
COMM RTN
B TX/RX
A TX/RX

NO1
CM1
NC1

ALARM V + INPUT

2

ALARM 2 OUTPUT

4

ALARM 4 OUTPUT

6

ALARM 5 OUTPUT

8

DEBOUNCE
TEST RX
DIGITAL RETURN
HOLD / PRINT REQ
GATE INPUT
BACKUP BATTERY +

P5 ANALOG OUT

P7/RELAY

1
2
3

1
2
3

1

2

Setup

1

RETURN
4-20 mA
0-10 V

NO2
CM2
NC2

BCD

P5

1

.

.

.

P18 for 4 RELAY

1

P8

...

...

1

P6

P2

1

.

..........

.

..........

P1

.

1

1

CONNECT TO LOW VOLTAGE LIMITED ENERGY CIRCUITRY ONLY.

P8

1

P7

P4

.
.
.
.

1

.

19

Figure 2-5. Connector Label

2.3.2 CHECKING AND INSTALLING JUMPERS

This section contains figures and instructions for checking and
installing jumpers, but it gives full information on the Main Board
only. If you have any optional boards, refer to the appropriate
appendix for specific jumper information.

NOTE: When referring to jumpers and the corresponding boards,
the view is from the REAR of the meter.

P9

P3

.

1

.

.

.

1

.

.

PULSE INPUT

P9 & P3

FILTER
SIG IN HI LEVEL
PULL UP/DOWN

EXCITATION
SIG IN LO LEVEL
SIG RETURN

ANALOG INPUT

+24 V EXC
SIGNAL IN
RETURN

TEST
TEST
TEST

1

15