Omega | DP301AN Series | Owner Manual | Omega DP301AN Series Owner Manual

Omega DP301AN Series Owner Manual
User’s Guide
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DP301AN DC VOLTMETER
DP301AN-AC VOLTMETER
omega.com info@omega.com
U.S.A.
Headquarters:
Servicing North America:
Omega Engineering, Inc.
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
e-mail: info@omega.com
Fax: (203) 359-7700
For Other Locations Visit omega.com/worldwide
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.
TABLE OF CONTENTS
SAFETY INSTRUCTIONS........................................................................................ iii
1.0 GENERAL INFORMATION ............................................................................... 1
2.0 SPECIFICATIONS.............................................................................................
2.1 Analog Input ................................................................................................
2.2 Accuracy at 25°C .........................................................................................
2.3 Noise Rejection ..........................................................................................
2.4 Analog-To-Digital Conversion......................................................................
2.5 3-Wire Ratio Reference ...............................................................................
2.6 Display .........................................................................................................
2.7 Digital Signals .............................................................................................
2.8 Power ..........................................................................................................
2.9 Environmental .............................................................................................
2.10 Mechanical ..................................................................................................
1
1
2
2
2
2
2
3
3
3
3
3.0 MECHANICAL ASSEMBLY AND INSTALLATION ........................................... 4
3.1 Panel Mounting .......................................................................................... 4
4.0 POWER AND SIGNAL ......................................................................................
4.1 Changing Operating Voltage .......................................................................
4.2 Power and Signal Connections ...................................................................
4.3 Connector Pin Assignments ........................................................................
4.4 Digital Test Signals .....................................................................................
6
6
6
8
9
5.0 CONFIGURATION .......................................................................................... 10
5.1 Decimal Point Selection .............................................................................. 10
5.2 Voltage Range Selection ............................................................................. 11
5.3 Blanking Least-Significant Digit .................................................................. 12
6.0 CALIBRATION................................................................................................... 13
6.1 DC Voltage Ranges .................................................................................... 13
6.2 AC Voltage Ranges .................................................................................... 13
7.0 DRAWINGS ...................................................................................................... 14
i
ILLUSTRATIONS
Figure 3-1 DIN Case Dimensions ............................................................................. 4
Figure 3-2 Exploded View ....................................................................................... 5
Figure 4-1 Main Board ............................................................................................. 6
Figure 4-2 Rear Terminal ......................................................................................... 6
Figure 5-1 Display Board Jumper Locations .......................................................... 10
Figure 5-2 Main Board Jumper Locations ............................................................. 11
Figure 5-3 Solder-Switch Locations ....................................................................... 12
Figure 7-1 Assembly Diagram ................................................................................. 14
ii
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 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.
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.
• 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.
iii
1.0
GENERAL INFORMATION
The two versions of voltmeters are different pinout versions of the same 3 1/2
digit panel meter for applications which require a compact, quality dc voltmeter.
Standard features include HOLD function, selectable decimal point location and
LAMP TEST.
Each model contains the circuitry for all ranges. The range is changed by
opening and closing the appropriate switches on the printed circuit board via
installation of push-on jumpers.
1.1
MODEL DP301AN
Model DP301AN is pin compatible with newer voltmeters DP302, DP3001 and
DP3002 series.
Models DP301AN has a resolution of 1 part in ±1999 counts, or 0.05% of full
scale. By using an external dc voltage reference, any of these ranges can be
configured for 3 wire ratio measurement with readout from 0 to 1.999.
1.2
MODEL DP301AN-AC
Model DP301AN-AC, for AC power line monitoring, has a screw terminal barrier
strip for signal and power. This model uses a half wave average converter
calibrated to read RMS. It offers input ranges of 199.9 and 650 V ac, with
resolution of 100 mV and 1 V, respectively. Maximum rated input in either range is
650 V RMS or 920 Vp.
2.0
SPECIFICATIONS
2.1
ANALOG INPUT
Model "AN"
Signal ranges
Bias current
Maximum input
Resolution
Input resistance
Configuration
Zero
Span adjustment
Model "AN-AC"
Signal ranges
Bias current
Overvoltage protection
Resolution
Input resistance
Configuration
Zero
Frequency
±199.9mV ±1.999V ±19.99V
50 pA
50 pA
5 pA
130 Vp
130 Vp
250 Vp
100 uV
1 mV
10 mV
1 GΩ
1 GΩ
1.1 MΩ
Differential, bipolar
Automatic
±5%
199.9 V ac
650 V ac
1 pA
1 pA
650 V ac
650 V ac
100 mV
1 V ac
1 MΩ
1 MΩ
Half wave average, RMS calibrated
Automatic
47 to 1000 Hz
1
±199.9V
1 pA
250 Vp
100 mV
1.0 M^N8,50
2.2
2.3
ACCURACY AT 25°C
Warmup to rated accuracy
10 minutes
Model "AN"
Maximum error
Span to tempco
Step response
±0.05% or reading °1 count
±0.01% of reading/°C
1 second
Model "AN-AC"
Maximum error
20.0 to 199.9 V range
20.0 to 650. V range
Span to tempco
Step response
(10% to 100% of full-scale range)
(actual reading)
±0.003%FS (R-110 V) / V ±1 counts
±0.003%FS (R-220 V) / V ±1 counts
±0.01% of reading / °C
1 second
NOISE REJECTION
NMR
CMR, SIG LO to SIG GND
CMV, SIG LO to SIG GND
CMR, AC GND to SIG GND
CMV, AC GND to SIG GND
2.4
ANALOG TO DIGITAL CONVERSION
Technique
Read rate
Input integration period
2.5
Dual-slope, average-value
2.5/second
100 milliseconds
3 WIRE RATIO REFERENCE
Model "AN"
Analog input range
Reference voltage
Load on reference
Accuracy
2.6
56 dB at 50/60 Hz
80 dB, DC to 60 Hz
±1.0 Vp
120 dB, DC to 60 Hz
1500 Vp per HV test; 354 Vp per IEC spacing
±200 mV, ±2 V, ±20 V, ±200 V
+0.05 to +0.2 V
+0.5 to 2.0 V
30.6 ohms
65.3 ohms
99.9%R
99.9%R
DISPLAY
Type
Symbols
Model "AN"
Model "AN AC"
Decimal points
Overrange indication
7 segment, red LED; 14.2 mm (0.56 in)
-1.8.8.8
1.8.8.8
3 position programmable internally or at connector
3 least significant digits blank
2
2.7
DIGITAL SIGNALS (Referenced to SIG GND)
Logical 0
Logical 1
Display HOLD
LAMP TEST
Output voltage
2.8
POWER
AC input voltage
AC frequency range
DC input voltage
Power consumption
2.9
115 or 230 V ac ±15%
49 to 440 Hz
9 to 32 V dc, isolated to 300 Vp
26 to 56 V dc, isolated to 300 Vp
2.4 W (nominal)
ENVIRONMENTAL
Operating temperature
Storage temperature
Relative humidity
2.10
0 to +1.4 V
+3.7 V to +5.0 V
1 = latched reading
1 = display of -1888
+4.7 V dc ±5% at 10 mA max
-4.6 V dc ±5% at 10 mA max
0 to +60°C
-40 to +85°C
95% at +40°C (non-condensing)
MECHANICAL
Bezel
Depth behind bezel,
with connector
Panel cutout
Weight
Case material
D1 connector:
D4 connector:
96 x 48 x 6.1 mm (3.78 x 1.89 x 0.24 in)
99 mm (3.90 in)
92 x 45 mm (3.62 x 1.77 in)
400 g (14 oz)
94V-O UL rated polycarbonate
18 pin, double row, 3.96 mm (0.156 in) pin spacing
Screw terminal barrier strip for signal and power
(removes these inputs from D1)
3
3.0
MECHANICAL ASSEMBLY AND INSTALLATION
3.1
PANEL MOUNTING
Figure 3-1 DIN Case Dimensions
1. Remove the main board edge connector (J1) if installed.
2. Use a #8 Phillips-head screwdriver to loosen the two screws on the rear of
the case until you can rotate the two clamp rings. Loosen the screws enough
to allow for the panel thickness.
3. Slide the two slide retainers towards the rear of the unit and remove them.
4. Observe the case dimensions previously shown. From the front of the panel,
insert the meter into the panel cutout.
5. Slide the slide retainers back onto the case and push up tightly against the
rear of the panel.
6. Rotate the clamp rings back into their original position and tighten until the
case is held in place. Do not overtighten.
7. Reinstall any connectors that were removed
4
3.1
PANEL MOUNTING (continued)
WARNING: High voltage is present when using model "AN-AC" with the
650 V AC option.
Figure 3-2 Exploded View
5
4.0
POWER AND SIGNAL
4.1
CHANGING OPERATING VOLTAGE
Remove power lines from the meter, then remove the meter from the case.
OPERATING VOLTAGE
JUMPER INSTALLATION
230 V ac ±15% (Option C1)
Remove W8 and W9 on the transformer
Install W4 on the printed circuit board
115 V ac ±15% (Standard)
Install W8 and W9 on the transformer
Remove W4 on the printed circuit board
Figure 4-1 Main Board
4.2
POWER AND SIGNAL CONNECTIONS
The voltmeters are factory-set for 115 V ac ±15% operation.
Power and signal can be connected using the D1 or D4 option.
(D4)
(D1)
Figure 4-2 Rear Terminal
6
Refer to Figure 4-2.
MODEL "AN"
Connector
Power
D1
~ AC
D4
D1
DC
D4
Signal
A
L (High)
17
High
2
N (Low)
16
Low
C
(Ground)
1
L (High)
6
High
2
N (Low)
5
Low
3
(Ground)
4
Signal GRND
2
+ DC
17
High
C
- DC (return)
16
Low
1
No connection
6
High
2
+ DC
5
Low
3
- DC (return)
4
Signal GRND
Model "AN-AC"
Connector
D4
Power
Signal
1
L (High)
6
High
2
N (Low)
5
Low
3
(Ground)
4
No connection
Wire Color for AC Power
USA
Other
L (High)
Black
Brown
N (Low)
White
Blue
(Ground)
Green
Green
7
4.3
CONNECTOR PIN ASSIGNMENTS
Model "AN-AC" J1 Connector (D1 Option)
Spare
N/C
Spare
N/C
Spare
N/C
199.9 DP
19.99 DP
1.999 DP
LAMP TEST
+4.7 V
-4.6 V
+REF
HOLD
ANA GND
SIG LO
N/C
Spare
Model "AN"
A
B
C
D
E
F
H
J
K
L
M
N
P
R
S
T
U
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
N/C
N/C
N/C
N/C
N/C
N/C
199.9 DP
19.99 DP
1.999 DP
LAMP TEST
+4.7 V
-EXC
+EXC
HOLD
Spare
Spare
Spare
N/C
J1 Connector (D1 Option)
AC HI
N/C
AC GND/-DC PWR
N/C
Spare
N/C
199.9 DP
19.99 DP
1.999 DP
LAMP TEST
+4.7 V
-4.6 V
+REF
HOLD
ANA GND
SIG LO
N/C
SIG HI
A
B
C
D
E
F
H
J
K
L
M
N
P
R
S
T
U
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
N/C
AC LO/+DC PWR
N/C
N/C
N/C
DIG GND
199.9 DP
19.99 DP
1.999 DP
LAMP TEST
+4.7 V
-EXC
+EXC
HOLD
Spare
SIG LO
SIG HI
N/C
8
Connector TB1 (D4 Option)
~ AC Power Versions
DC Power Versions
1
2
3
4
5
6
1
2
3
4
5
6
AC HI L
AC LO N
AC GND
ANA GND*
SIG LO
SIG HI
N/C
+DC PWR
-DC PWR RETURN
ANA GND*
SIG LO
SIG HI
* No connection with "AN-AC"
4.4
DIGITAL TEST SIGNALS
Display HOLD instructs the meter to maintain a display of the last reading.
To activate HOLD, connect J1-pin 14/R to J1-pin 11/M.
LAMP TEST instructs the meter to light the minus sign and all digits on the
display to verify that the display is operating properly. To test the display, connect
J1-pin 10/L to J1-pin 11/M. The decimal point does not light when LAMP TEST is
activated.
9
5.0
CONFIGURATION
Select the desired configurations from the following charts.
Install jumpers and open/close solder switches as indicated.
Remove all push-on jumpers not used.
5.1
DECIMAL POINT SELECTION
Figure 5-1 Display Board Jumper Locations
Alternate Decimal Point Configuration Using
Main Board Connector J1
Decimal Point
S1
1.999
A
Connect K/9 to 6
19.99
C
Connect J/8 to 6
199.9
B
Connect H/7 to 6
10
5.2
VOLTAGE RANGE SELECTION
Figure 5-2 Main Board Jumper Locations
Input Configuration
Solder Switches*
Push-on Jumpers
Remove Jumper
Open
Close
S2
S3
200 mV dc
-
-
A
A
2 V dc
-
-
B
-
20 V dc
-
-
B, C
-
200 V dc
-
-
B, D
-
200 V ac
I
G, K, J
B
-
E-17 to TB1B-4
650 V ac
I
H, K, J
B
-
E-17 to TB1B-4
True-differential
C
--
-
-
* Refer to Figure 5-3 on the following page for solder switch locations.
11
Wire
5.3
BLANKING THE LEAST-SIGNIFICANT DIGIT
To blank the least-significant digit, open solder switch 'A' on the circuit side of the
display board.
Figure 5-3 Solder Switch Locations
12
6.0
CALIBRATION
6.1
DC VOLTAGE RANGES
1. Remove the front lens. Insert a blade screwdriver under the notch at the
bottom of the lens and gently pry it off.
2. Short the input signal connections and verify that the display reads zero.
3. Apply an input voltage equal to 95% of the high end of the range selected.
4. Locate the Span potentiometer (R23) in Figure 3-2. Adjust until the display
reads 1900 ±1 count.
6.2
AC VOLTAGE RANGES
1. Follow steps 1 and 2 from above.
2. Apply an input voltage equal to 110.0 V ac at 50 or 60 Hz on 200 V ac range
or 220 V ac at 50 or 60 Hz on 650 V ac range.
3. Locate the Span potentiometer (R23) in Figure 3-2. Adjust until the display
reads:
110.0 on 200 V ac range
220 on 650 V ac range
13
7.0
DRAWINGS
Figure 7-1 Assembly Diagram
14
NOTES
15
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to
the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s
customers receive maximum coverage on each product.
If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon
examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at no charge.
OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including
but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or
unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered
with or shows evidence of being damaged as a result of excessive corrosion; or current, heat, moisture or
vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s
control. Components which wear are not warranted, including but not limited to contact points, fuses, and
triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither
assumes responsibility for any omissions or errors nor assumes liability for any damages that result from
the use of its products in accordance with information provided by OMEGA, either verbal or written.
OMEGA warrants only that the parts manufactured by it will be as specified and free of defects. OMEGA
MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION
OF LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with
respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or
otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event
shall OMEGA be liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity,
medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth
in our basic WARRANTY / DISCLAIMER language, and additionally, purchaser will indemnify OMEGA and hold
OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a
manner.
RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and
on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.
FOR WARRANTY RETURNS, please have the
following information available BEFORE
contacting OMEGA:
1. P.O. number under which the product
was PURCHASED,
2. Model and serial number of the product
under warranty, and
3. Repair instructions and/or specific
problems relative to the product.
FOR NON-WARRANTY REPAIRS, consult
OMEGA for current repair charges. Have
the following information available BEFORE
contacting OMEGA:
1. P.O. number to cover the COST
of the repair,
2. Model and serial number of product, and
3. Repair instructions and/or specific
problems relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This
affords our customers the latest in technology and engineering. OMEGA is a registered trademark of OMEGA
ENGINEERING, INC. © Copyright 2012 OMEGA ENGINEERING, INC. All rights reserved. This document may not
be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form,
in whole or in part, without prior written consent of OMEGA ENGINEERING, INC.
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
TEMPERATURE
Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies
 Wire: Thermocouple, RTD & Thermistor
 Calibrators & Ice Point References
 Recorders, Controllers & Process Monitors
 Infrared Pyrometers
PRESSURE, STRAIN AND FORCE
 Transducers & Strain Gauges
 Load Cells & Pressure Gauges
 Displacement Transducers
 Instrumentation & Accessories
FLOW/LEVEL
 Rotameters, Gas Mass Flowmeters & Flow Computers
 Air Velocity Indicators
 Turbine/Paddlewheel Systems
 Totalizers & Batch Controllers
pH/CONDUCTIVITY
 pH Electrodes, Testers & Accessories
 Benchtop/Laboratory Meters
 Controllers, Calibrators, Simulators & Pumps
 Industrial pH & Conductivity Equipment
DATA ACQUISITION
 Data Acquisition & Engineering Software
 Communications-Based Acquisition Systems
 Plug-in Cards for Apple, IBM & Compatibles
 Datalogging Systems
 Recorders, Printers & Plotters
HEATERS
 Heating Cable
 Cartridge & Strip Heaters
 Immersion & Band Heaters
 Flexible Heaters
 Laboratory Heaters
ENVIRONMENTAL MONITORING
AND CONTROL
 Metering & Control Instrumentation
 Refractometers
 Pumps & Tubing
 Air, Soil & Water Monitors
 Industrial Water & Wastewater Treatment
 pH, Conductivity & Dissolved Oxygen Instruments
M5224/0818
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