uma
Single Phase Portable Multifunction Meter
Features
State of Art Digital Signal Processing Based Design.
Measures V, A , P.F. , VA ,Frequency & W .
True RMS Reading.
Data Logging Facility ( Optional).
Applicable for wide range of Power Factor i.e. 0.1 Lag to 0.1 Lead.
There is Simultaneous Display of Voltage , Current , Watt &
alternate display of Power Factor and Apparent Power , this makes
Q.C. Process Simpler and Faster .
Technical Specifications
A) Input Voltage
30 - 300 V
B) Input Current
1 A / 5 A / 10 A ( Range 1 to 100 % of full scale)
C) Measurement
True RMS
D) Resolution
Floating Decimal Point
E) Accuracy
Class 0.2 ( For P.F. ± 0.02)
F) Display
16 by 2 Alphanumeric LCD Display with backlight.
G) Auxiliary Supply
230V ± 20%
H) Dimension(mm)
Front 70 by 195 . Depth 170
Note : Other Input Voltage and Input Current Range can be made available on request .
Applications
Testing of Transformers ,Motors ,Machines etc.
Fluorescent Lamps ,Choke Industries.
Laboratory Experiments in Educational Institutes.
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
uma
Single Phase Digital Panel Meter
For Better Controlling and Monitoring of Your Electrical system
Use Our Accurate & Reliable Digital Meters...........
Features
These meters are certified by ETDC and NABL Accredited LABs.
Microcontroller based Accurate and Reliable .
Voltmeter and Ammeter based on True RMS Technology .
Wattmeter based on Four Quadrant Multiplier Technology .
Measures True Power Factor that is ratio of Active and Apparent Power .
Ammeter with site selectable range selection using
DIP switch facility is available .
Four Digit Display of all the meters .
Super Bright RED Display .
Floating Decimal Point for better resolution .
As meters are C.T. Based ,It has very low VA burden
compared to meters which are shunt based .
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
Technical Specifications
A) Range
Voltmeter
: 0 -2,20,200,750V AC
For HV Panel :11,33,132,220,400KV AC
(Input 110 / 230V AC)
Ammeter
: 1 / 5 /10 /20 A AC
Frequency : 40 To 70 Hz
Power Factor Meter: 0.3 Lag to 0.3 Lead
Input Voltage: 110/230V
Input Currnet :1/5 A/10 A
Wattmeter : Input Voltage ±20% of 230V
Input Current 1/5/10/20 A .
B) Auxiliary Power Supply : 110 / 230 V AC
C) Accuracy
Voltmeter and Wattmeter : Class 1.0
Ammeter : Class 0.5
Frequency :±0.05Hz
Power Factor Meter : ± 2 Degrees
E) Super Bright RED LEDs
F) Resolution
Voltmeter
: Floating Decimal Point
& Wattmeter
Ammeter
: 0.001A
Frequency
: 0.01Hz
Power Factor : 0.001
G) Environmental Conditions
0 To 50°C,< 70% RH
D) Digits : 4 Digit Display
Note: Voltmeter & Ammeter can be programmed according to PT/CT ratio as specified by the user
Parameter
Voltage
Current
Frequency
Power Factor
Watttmeter
Model
DTV-1
DTA-1
DF-1
DTPF-1
DTW-1
Applications
Electrical Panels
Genset Panels
Wind Energy Power Plant
Test Benches
Lab equipment & UPS System
Motor Control Centers
Note :
1) All these meters are available in standard DIN Size of 48 by 96 , 96 by 96
and 72 by 72 (Depth 65) . All dimensions are in mm.
2) Please specify Model No. , Voltage & Current range and Box Size at the
time of ordering.
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
uma
Single Phase DPM Multifunction Meter
Features
State of Art Digital Signal Processing Based Design.
Measures V, A , P.F. , VA ,Frequency & W .
True RMS Reading.
Data Logging Facility ( Optional).
Applicable for wide range of Power Factor i.e. 0.1 Lag to 0.1 Lead.
There is Simultaneous Display of Voltage , Current , Watt &
alternate display of Power Factor and Apparent Power , this makes
Q.C. Process Simpler and Faster .
Technical Specifications
A) Input Voltage
30 - 300 V
B) Input Current
1 A / 5 A / 10 A ( Range 1 to 100 % of full scale)
C) Measurement
True RMS
D) Resolution
Floating Decimal Point
E) Accuracy
Class 0.2 ( For P.F. ± 0.02)
F) Display
16 by 2 Alphanumeric LCD Display with backlight.
G) Auxiliary Supply
230V ± 20%
H) Dimension(mm)
Front 48 by 96 . Depth 110.
Note : Other Input Voltage and Input Current Range can be made available on request .
Applications
Electricity Panels ,Industries ,Power Plant etc.
Genset Panel .
Testing of Transformers ,Motors ,Machines etc.
Test Benches.
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
uma
www.umaelectronics.com
AN1
Digital Meters For Educational Institutes
INTRODUCTION
Today we want to provide the best Technical Facilities and Equipments in Educational
Labs, so that students can have hands on experience of latest technologies and products
used in Industrial Environment .
Let’s take a case of an Electrical Engineering Lab. There we have to do many experiments
related to verification of particular law or theorem, estimation of motor’s & transformer’s
parameters or designing a new system .Here we need to first measure various electrical
parameters like Wattage ,Current , Power Factor etc. And then we do the calculation
using standard formulaes ,plot the graph and arrives on the conclusion .
We have designed and developed Digital Portable Meters for conducting experiments
in Educational Institutes , that will not only make the work more accurate and reliable
but simpler also.
Traditionally we are using Analog meters in our Labs. In this application note , we have
a look on the various advantages of the Digital meters over the Analog meters.
Advantages of Digital meters over Analog meters
Accurate & Reliable.
Faster Response.
Better Readability .
Higher Resolution.
There is no observational error such as Parallax and Estimation.
In case experiment requires multiple parameters , we can replace many meters
with just a single Multifunction meter ,that will reduces the unnecessary and repetitive
wiring , thus saves lot of time and energy .
Computer interfacing can be provided for data analysis and recording .
Last but not the least ,they are economical .
uma
Digital Portable Meters
These meters are designed exclusively for
R&D Labs and Educational Institutes.
Features
ETDC Certified.
Accurate and Reliable .
Microcontroller Based True RMS Technology for Voltmeter & Ammeter.
DSP Based Circuitary for Wattmeter , P.F.Meter & MultiFunction Meter.
Data Logging Facility ( Optional).
Technical Specifications
MODEL
PARAMETERS
SPECIFICATIONS
ACCURACY
DIMENSION
mm
DPTV-1
V
Range : 200mV , 2V , 20V , 200 V,500V (AC / DC) .
Floating Point Resolution.
True RMS Reading for AC Measurements .
Class 0.5 ( DC V) 50 by 100
Class 1.0 ( AC V) (Depth 150)
DPTA-1
A
Range : 20mA,200mA ,1A,2A ,5A,10A (AC / DC) .
Floating Point Resolution.
True RMS Reading for AC Measurements .
Class 0.5
DPTF
Hz
DPTW-1
W
DPTPF-1
Cos Ø
DPMFM-1
V,A,W,VA
& CosØ
Range : 20.00 to 99.99 Hz / 20.00 to 999.9 Hz.
Input Voltage : 40 - 500 V AC .4-Digit Display.
± 0.05 Hz
50 by 100
(Depth 150)
50 by 100
(Depth 150)
Input Voltage : 50 - 300 V AC.
Input Current : 1A / 5A / 10A AC.
For P.F. 0.3 Lag to 0.3 Lead . DSP Based Technology.
Class 0.2
70 by 195
(Depth 170)
Input Voltage : Single Phase 50 - 300 V AC .
Three Phase 300 - 500 V AC.
Input Current : 1A / 5A / 10A AC.
For P.F. 0.3 Lag to 0.3 Lead . DSP Based Technology.
Lag & Lead Indication .
± 2 Deg.
70 by 195
(Depth 170)
Class 0.2
70 by 195
(Depth 170)
Input Voltage : 50 - 300 V .
Input Current : 1A / 5A / 10 A AC.
Simultaneous Display of all the parameters .
16 by 2 Alphanumeric LCD Display .
DSP Based Technology .
UMA Electronics Enterprise
( For P.F. ± 2 Deg.)
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
uma
Three Phase Power Analyser
FEATURES
DSP Based Technology.
TRUE RMS Readings.
20 by 4 Alphanumeric Blue Moon LCD Display .
Floating Decimal Point Resolution.
Wide range of input voltage and input current.
Simple and easy to operate user interface.
Hold Button Facility.
TECHNICAL SPECIFICATIONS
A) Parameters
Voltage ( V)
- V1,V2,V3 & Avg. Voltage.
Current (A)
- I1 , I2 , I3 & Avg. Current.
System Frequency ( Hz)
Active Power(W) - W1,W2,W3 & Total Wattage.
Power Factor ( Cosø) - PF1,PF2,PF3 & Total.
Apparent Power ( VA) - Total .
B) Measurement
True RMS
C) Range
Phase Voltage : 30-300 V AC .
Phase Current : 1 / 5 /10 / 20 A AC ( 1 to 100%) .
Frequency : 40 to 70 Hz.
For Power Factor 0.05 Lead to unity to 0.05 Lag
D) Resolution
Floating Decimal Point
E) Auxiliary Supply
230V ± 20%
F) Accuracy
Class 0.2 for Voltage, Current , Active Power &
Apparent Power .
± 0.05 Hz for Frequency.
±0.005 For Power Factor .
G) Dimension(mm)
Front - 82 ( H) by 255 (W) . Depth 190 .
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
Applications
Pages
V 231.0 A 2.624
Hz 4 9 . 9 9 W 9 8 3 . 4
VA 1 . 8 2 5K PF 0 . 5 4 3
uma electronics
V1
V2
V3
V
230.3
235.6
227.1
231.0
A1
A2
A3
A
W1
W2
W3
W
150.2
585.9
255.7
991.8
PF1
PF2
PF3
PF
Testing of Single and Three Phase
Transformers .
Page1
Testing of Power Electronics Devices such as
Motor drives , UPS , Air Conditioner & UPS.
For conducting experiments in R& D Labs
and Educational Institutes.
1.274
3.923
2.675
2.624
Page 2
0.512
0 . 6 3 4 Page 3
0.421
0.543
V = (V1 + V2 + V3 )/3
A = (A1 + A2 + A3 )/3
W = W1 + W2 + W3
VA = V1*A1 + V2*A2 + V3*A3
PF = W / VA
Terminal Connection
R1
R2
Y1
Y2
B1
B2
N
RM
YM
BM
RL
YL
BL
R
Y
B
N
Note :
1)R1 , Y1 and B1 are internally connected to Rm , Ym and Bm respectively .
2)In those cases , where external CT is not needed ,R1 & R2 , Y1 & Y2 and B1 & B2 are required to
be connected externally (Factory Set ).
3) In other cases, where external CT is needed ,R2 , Y2 and B2 are required to be connected to respective phases .
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
uma
Single Phase DPM Combination Meter
Features
State of Art Digital Signal Processing Based Design.
Measures V, A , P.F. ,Frequency & W .
True RMS Reading.
Data Logging Facility ( Optional).
Applicable for wide range of Power Factor i.e. 0.1 Lag to 0.1 Lead.
Auto Scroll Facility .
Lag and Lead Indication .
Technical Specifications
A) Input Voltage
30 - 300 V
B) Input Current
1 A / 5 A / 10 A /20 A ( Range 1 to 100 % of full scale)
C) Measurement
True RMS
D) Resolution
Floating Decimal Point
E) Accuracy
Class 0.2 ( For P.F. ± 0.02)
F) Display
4- Digit Super Bright Display . .
G) Auxiliary Supply
230V ± 20%
H) Dimension(mm)
Front 96 by 96 . Depth 65.
Note : Other Input Voltage and Input Current Range can be made available on request .
Applications
Electricity Panels ,Industries ,Power Plant etc.
Genset Panel .
Testing of Transformers ,Motors ,Machines etc.
Test Benches.
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012
uma
DSP Based Double Voltage Double Frequency Meter
DVDF
DTV3
V
R
V
uma
uma
Y
BHz
Auto . K
UMA ELECTRONICS
INTRODUCTION
UMA Electronics has designed and developed Double Voltage Double Frequency Meter for
Transformer’s Manufacturers . It is designed to make this particular test more accurate and
simpler . It is based on the advanced Digital Signal Processing Circuitry with 24-bit ADC .
It replaces the two meters with a single meter , hence saves panel space and make this
arrangement more economical and user friendly .
Specifications
DSP Based Technology.
TRUE RMS Readings.
Accuracy Class 0.2 .
Auto Scrolling Facility .
4-Digit LED Display .
Floating Decimal Point Resolution.
Input Voltage Range 30 - 1000 V for frequency 30 - 200 Hz .
Simple and easy to operate user interface.
Relay Facility with Timer ( Optional).
Computer Interfacing Facility ( Optional).
Auxiliary Supply 230 V AC ± 20 %.
Box Size - 96mm by 96mm ( Depth 65mm ).
UMA Electronics Enterprise
Email:info@ umaelectronics.com
www.umaelectronics.com
Office : A-404 ,Vaishali Nagar , Jaipur - 302021 . Ph: 0141-4017564 . Works: H1-54 , RIICO Industrial Area ,Bindayaka , Jaipur - 302012