This is a list of easily obtainable 4-20mA Loop Panel Meters for use with the 4-20mA transducer
and Current transformer Bundles. This includes Loop Panel Meters compatible with the following Transducers and Transducer Bundle Series:
- SCT-0400-XXXX-4-20B
- SCT-0750-XXXX-4-20B
- SCT-1250-XXXX-4-20B
- SCT-2000-XXXX-4-20B
- SCT-3000-XXXX-4-20B
- UCT-0300-XXXX-4-20B
- UCT-0500-XXXX-4-20B
- UCT-0750-XXXX-4-20B
- UCT-1000-XXXX-4-20B
- UCT-1250-XXXX-4-20B
- OSM-333-0420
Each of the transducer bundles is paired with a SCT or UCT series current transformer. This gives the total measurable current range from a custom load of 1A to a current load of 3000A or more. The current transformers are both solid core and split core and have a wide range of openings. The largest transformer has an opening of 3 x 5 inches.
List of Process Meters (Current Meters) 4-20mA Loop
The following is a list of Process Meters (4-20mA Loop) for use with the SCT and UCT series current transformer/transducer bundles. These Process Meters are used to measure current form a 4-20mA source. All of these Process Meters (4-20mA Loop) are panel mountable meters. All of these meters are easily obtainable and are generally in distribution with inventory
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DMS-20LCD-4/20S-C |
|
MFG |
Murata Power Solution Inc. |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Char on Grey Background |
|
|
DISPLAY |
1.3"L x 0.8"W (3.5 Digit) |
|
|
Back-LIGHT |
Without |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$50 |
Panel Meter #4-20L-0001
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
1030-0019-U |
|
MFG |
Jewell Instruments LLC |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Char on Green Background |
|
|
DISPLAY |
1.13"L x 0.39"W (3.5 Digit) |
|
|
Back-LIGHT |
Green |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$100 |
Panel Meter #4-20L-0002
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK590 |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Char on Grey Background |
|
|
DISPLAY |
2.44L x 1.03"W (3.5 Digit) |
|
|
Back-LIGHT |
Without |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$65 |
Panel Meter 4-20L-0003
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK190 |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Char on Grey Background |
|
|
DISPLAY |
2.3"L x 1.10"W (3.5 Digit) |
|
|
Back-LIGHT |
Without |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$65 |
Panel Meter 4-20L-0004
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK807A |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Char on Grey Background |
|
|
DISPLAY |
3.44L x 1.89"W (3.5 Digit) |
|
|
Back-LIGHT |
Without |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$70 |
Panel Meter 4-20L-0005
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK857B |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Red-Char on Black Background |
|
|
DISPLAY |
3.44"L x 1.89"W (3.5 Digit) |
|
|
Back-LIGHT |
Red |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$70 |
Panel Meter 4-20L-0006
|
Image |
Descriptor |
Parameter |
|
Not Done Yet |
Part Number |
DK192 |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Amber-Char on Black Background |
|
|
DISPLAY |
2.5"L x 1.14"W (3.5 Digit) |
|
|
Back-LIGHT |
Amber |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$82 |
Panel Meter 4-20L-0007
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK193 |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Green-Char on Black Background |
|
|
DISPLAY |
2.5"L x 1.14"W (3.5 Digit) |
|
|
Back-LIGHT |
Green |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$82 |
Panel Meter 4-20L-0008
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK790 |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Char on Grey Background |
|
|
DISPLAY |
2.54"L x 1.14"W (4.5 Digit) |
|
|
Back-LIGHT |
Without |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$90 |
Panel Meter 4-20L-0009
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
1060-0019-U |
|
MFG |
Jewell Instruments LLC |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Characters on Red Background |
|
|
DISPLAY |
1.13"L x 0.39"W (3.5 Digit) |
|
|
Back-LIGHT |
RED |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$108 |
Panel Meter 4-20L-0010
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
DK957B |
|
MFG |
C-TON Industries |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Green-Characters on Black Background |
|
|
DISPLAY |
3.44"L x 1.89"W (3.5 Digit) |
|
|
Back-LIGHT |
Green |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$70 |
Panel Meter 4-20L-0011
Although it is very common that a panel meter requires a loop supply some panel meter can be supplied from line voltage or an auxiliary AC source that is 120,240 or other. The Red Lion Controls PAX is an example of a panel meter that is capable of source in the 4-20mA loop current and being supplied by a source voltage of 85-250VAC.
|
Image |
Descriptor |
Parameter |
|
|
Part Number |
PAXLCL00 |
|
MFG |
Red Lion Controls |
|
|
Description |
Process Meter 4-20mA Loop |
|
|
LCD-Description |
Black-Characters on Red Background |
|
|
DISPLAY |
3.80"L x 1.95"W (3.5 Digit) |
|
|
Back-LIGHT |
Without |
|
|
Mount |
Panel Mount |
|
|
Cost |
~$150 |
Panel Meter 4-20L-0012
Many other Process Meters and Process relays are available by a large number of venders. The list that is provided above is a list of popular process meter that Open Source Meter Inc. has put together as in aide in creating a full system bundle. For addition information and assistance selecting or sourcing a process meter or if needed a process relay please contact Open Source Meter Inc. at info@opensourcemeter.com.
Panel Meters Block Diagrams
There are two very typical topologies being use with process meter 4-20mA loop power current panel meters. The first topology is a process meter connected to a transducer and the loop power supplied by a loop supply such as a 24V supply as seen in the block diagram below. The second topology is a meter that connects to an AC voltage supply that has a self contained loop power supply. These supplies are the current source for the 4-20mA current loops.
Figure 1 External Loop Current Supply
Figure 2 Self Contained Loop Current Supply
