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The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it

contains, and reserves the right to alter specifications without notice.

Servicing North America:

U.S.A. Omega Engineering, Inc.

Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)

Engineering Service: 1-800-872-9436 (USA & Canada only)

Tel: (203) 359-1660 Fax: (203) 359-7700

e-mail: info@omega.com

For Other Locations Visit omega.com/worldwide

Main Page

Table of Contents3
Section 1 Introduction11
Description11
Features11
Available Models12
Section 2 Unpacking14
Section 3 Safety Considerations16
Safety Considerations16
Section 4 Parts of the Meter17
Front of the Meter17
Figure 4-1 Front Detail17
Rear of the Meter20
Figure 4-2A AC Power - Connector Label for Rear Connectors20
Figure 4-2B DC Power - Connector Label for Rear Connectors21
Section 5 Setup23
Conditions Requiring Disassembly23
Assembly/Disassembly Opening23
Figure 5-1 Meter Exploded View24
Figure 5-2 Board Assembly Removing/Installing Detail25
Safety Precaution/Product ID Label26
Main Board Power Jumpers27
Figure 5-3 Transformer Jumpers27
Printed Circuit Board(S) Installation28
Figure 5-4 Optional Printed Circuit Board Locations28
How to Access Jumpers29
Figure 5-5 Signal Input Board29
Figure 5-6 Ac-Powered Main Board30
Figure 5-7 DC-Powered Main Board30
Figure 5-8 Relay Option Board31
Figure 5-9 4-Relay Option Board31
Figure 5-10 Analog Output Option Board32
Figure 5-11 RS-232 Option Board32
Figure 5-12 RS-485 Option Board32
Panel-Mount Assembly33
Figure 5-13 BCD Option Board33
Figure 5-14 Panel Mounting Assembly34
Section 6 Jumper Positions36
Introduction36
S1 Jumper Positions for Readrate and Unipolar or Bipolar Input(S)36
S2 Jumper Positions for Input Range36
Figure 6-1 S1 and S2 Jumper Locations on Signal Input Board36
Jumper Setting(S) for Sensor Excitation38
Jumper Setting(S) for Sensor Excitation Ac-Powered Unit38
Jumper Setting(S) for Sensor Excitation DC-Powered Unit40
Section 7 Signal and Power Input Connections41
Introduction41
Signal Input Connections41
Figure 7-1 Current Input Without Sensor Excitation41
Figure 7-2 Current Input with Sensor Excitation41
Figure 7-3 Voltage Input Without Sensor Excitation42
Figure 7-4 3-Wire Voltage Input with Sensor Excitation42
Connecting Main Power43
Figure 7-6 Bridge Input with External Sensor Excitation43
Figure 7-9 AC Connector Wiring at P144
Figure 7-10 DC Connector Wiring at P144
Section 8 Methods for Scaling the Meter to Display in45
Figure 8-1 S3 and S4 Main Board Jumper Positions46
Figure 8-2 S1 and S2 Signal Input Jumper Positions47
Engineering Units48
Figure 8-3 Internally-Powered Bridge Input48
Voltage Input (Non-Ratiometric), Programming the Meter for a Desired Display59
Figure 8-5 S1 and S2 Signal Input Jumper Positions60
Figure 8-6 Sensor Input Connections61
Current Input, Programming the Meter for Adesired Display72
Figure 8-7 S3 and S4 Main Board Jumper Positions72
Figure 8-8 S1 and S2 Signal Input Jumper Positions73
Figure 8-10 S3 and S4 Main Board Jumper Positions85
Figure 8-11 S1 and S2 Signal Input Jumper Positions86
Figure 8-12 Sensor Input Connections86
Section 9 Meter Function Menus97
Individual Lockout Information97
Meter Function Menus98
Input103
RDG.CNF (Reading Configuration)103
RDG SC (Reading Scale) and RDG of (Reading Offset)105
IN CNF (Input Configuration)107
IN.SC.OF (Input Scale and Offset)108
DEC PT (Decimal Point)110
CNT by (Count By)111
FIL.CNF (Filter Configuration)112
FIL TI (Filter Time Constant)113
SP CNF (Setpoints 1 & 2 Configuration)114
AL CNF (Alarm Configuration)115
AL FNC (Alarm Function)117
AL RDG (Alarm Readings)118
SP DB (Setpoint Deadband)119
AL DB (Alarm Deadband)119
OUT.CNF (Output Configuration)120
OT.SC.OF (Output Scale and Offset)121
BAUD (Baud Rate)122
SERCNF (Serial Communication Configuration)123
ADDRESS (Multipoint Communications Device Address)124
DAT FT (Data Format)124
BUS FT (Bus Format)126
SERCNT (Serial Count)127
Analog Output Calibration Numbers128
Section 10 Setpoints/Alarms129
Features Overview129
Figure 10-1 Setpoints 1 & 2 Action130
Figure 10-2 Setpoints 3 & 4 Action130
Unlocking the Features131
Selecting "SP CNF" Setpoint Configuration Features131
Deviation Function for Alarms132
Figure 10-3 Process Deviation132
Figure 10-4 High Deviation for both Active above and Active below132
Selecting "AL CNF" Alarm Configuration Features133
Figure 10-5 Low Deviation for both Active above and Active below133
Figure 10-6 Band Deviation for both Active above and Active below133
Figure 10-7 al CNF Hysteresis134
AL RDG": Alarm Readings-Select Delay in Alarm Action136
SP DB": Select "SP 1"And "SP 2" Deadband (Hysteresis)136
Al Db": Select Alarm 1 ("Sp 3") and Alarm 2 ("Sp 4") Deadband (Hysteresis)136
OUT.CNF": Control Flashing of the Display137
Entering Setpoint Levels (in Run Mode)137
Section 11 Peak and Valley Readings138
Section 12 Analog Output Option139
Features Overview139
Unlocking140
OUT.CNF": Configuring the Output140
OT.SC.OF": Setting Output Scale and Offset140
Board Installation; Entering the Trim Data141
Figure 12-1 Analog Option Board and Connection Diagram at P5141
Filter Configuration "FIL.CNF" Value to be Transmitted143
Wiring/Connections143
Figure 12-2 Isolated Analog Output Board Wiring Connections143
Features Overview144
Figure 13-1 BCD 40-Pin Cable Connector (P8)144
Figure 13-2 BCD Option Board145
BCD Card Jumper Table146
Interconnect Board146
50-Line Cable Compatibility147
Selecting the Source of BCD Data: "OUT.CNF147
Hold Control147
Data Ready Timing Pulses147
Bringing out the BCD Overflow Line147
Digit at a Time Multiplex147
Digit at a Time Card Address148
Figure 13-3 Address Programming Chart for 4 -Line Address148
Select Data Polarity: Jumper S8149
Decimal Point Address Code149
Applying Non-Isolated/Isolated Power149
Driving a Printer149
Features Overview150
Figure 14-1 Dual Relay150
Figure 14-2 4 Relay Board Jumpers and Plugs151
Wiring/Connections152
Figure 14-3 Dual Relay Output Board Wiring Connections152
Figure 14-4 4 Relay Output Board Wiring Connections152
Features Overview153
Figure 15-1 RS-232/RS-485 Option Board and Pin Designations154
Front-Panel Pushbutton Configuration155
Section 16 External Control Lines156
Tare (Pin 1)156
Peak (Pin 2)156
Valley (Pin 3)156
Swlin2 (Pin 4)156
PEAK & VALLEY or EXTERNAL RESET (PIN 5)156
Push to Cal (Pin 6)157
Digital Return (PIN 7)157
Pin 8)157
Display Hold (PIN 9)157
LOCKOUT EEPROM (and 'MENU' BUTTON) (PIN 10)157
Print Command And/Or Reset of Alarms (PIN 11)157
Nonstandard RX (PIN 12) and Nonstandard TX (PIN 13)157
Push to Cal (Pin 14)158
Ext (Pin 15)158
Sp1 (Pin 16)158
Sp2 (Pin 17)158
Al1 (Pin 18)158
Al2 (Pin 19)158
Rtn Ext (Pin 20)158
Error Mode Message159
Flashing "999999" (Numerical Overflow)159
Flashing "ERR O1" (Offset Overflow)159
Flashing "ERR O2" (Setpoint Overflow)159
NOSTOR" & "STORED (Programming Entries in EEPROM)159
Flashing "+OVLD" (Positive Input Overload)159
Flashing "+OPEN" (Open Sensor Indication)159
Flashing "-OPEN" (Open Sensor Indication)160
Flashing "I OVSC" (Input Overscale)160
Flashing "R OVSC" (Reading Overscale)160
Flashing "CB OVF" (Count by Overflow)160
Flashing "UOM.OVF" (Unit of Measure Overflow)160
Troubleshooting Guide160
Section 18 Specifications163
Current Input163
Voltage Input163
Potentiometer Input163
General163
Section 20 Record Your Setup Values171

Omega DP461-S - Page 2

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