UM-35ACI5 TEXMATE, UM-35ACI5 Datasheet - Page 2

• Manufacturer Part Number: UM-35ACI5
• Description: TEXMATE DIGITAL PANEL METER UM-35ACI5 I/P 0-5AAC DISPLAY 0-50.0AAC 115V POWER,CHILD:UM-35AC15
• Manufacturer: TEXMATE

Specifications of UM-35ACI5

• Rohs Compliant: NA
• Operating Temperature Range: -10°C To +50°C
• Meter Function: AC Ammeter

UM-Series are connectable using the TB-KIT screw terminal
blocks provided with the meter. For greatest convenience, order
a Texmate Push-On screw terminal connector. Alternatively, a
pcb edge connector can be used.(see connector options)
Pins 1 & 2 - Display Test: All numeric display segments will light
up when this pin is connected to the H/T Common Pin. A Texmate
TB-KIT Screw Terminal Clip can be used to access the Display Test
function.
Pins 3, 4, C & D - H/T Common Pin: The Hold and Display
Test pins have to be connected to this pin to activate their
respective functions.
Pins A & B - Hold Reading: If this Pin is left unconnected, the
meter will operate in a free-running mode. When this pin is con-
nected to the H/T Common pin, the meter will latch up. A/D con-
versions will continue, but the display will not be updated until
Pins A & B are disconnected from the H/T Common pin. If this
function is to be accessed through a Texmate TB-KIT Screw
Terminal Clip, then jumper J5 will have to be opened to dis-
connect the Test function. If both hold and test functions need
to be accessed, a PCB edge connector (part no. CN-L15)
should be used.
Page 2
Common
Zero Pot
Connector Pinouts
Functional Diagram
Cut loop to turn OFF last digit for 199 display
Hold
Test
!
Input LO
Input HI
AC Neutral
AC Line
J5
HOLD/TEST
J5
0.56" Display
COMMON
DISPLAY
SIGNAL
WARNING
voltages can be hazardous. Do Not connect live wires to
screw terminal plugs, and do not insert, remove or handle
screw terminal plugs with live wires connected.
AC1
AC2
AC3
AC4
1
A
INPUT
TEST
LOW
AC1 –
AC2 –
AC3 –
AC4 –
B C D E
2
J5
GND
Component Side
3 4
47K
12
13
14
5Amp (0.02‰)
11
1Amp (0.1‰)
1
2
3
4
6
7
8
9
Shunt
5.1K
Rear View of Meter
1.XXX
1X.XX
1XX.X
1XXX.
5.1K
or
Span Pot
5
TST
H/T
:
I/P
HI
I/P
LO
6
F
B
E
AC and DC input signals and power supply
A
C
D
+ 5 V
+ 5 V — 5 V
Conversion
Differential
Conversion
Regulator
Decimal
Select
Header
to Single
AC to DC
Rectifier
H
7
Zero Pot
Circuit
Ended
Circuit
and
8
J
— 5 V
Texmate, Inc. Tel. [phone] • www.texmate.com
Solder Side
9 10 11 12 13 14 15
K
HLD
E
H/T
A
B
C
D
Circuit
+5 V DC
-5 V DC
LO
GND
I/P
Filter
I/P
HI
L M N
1M
+ 1.25V
Span
+ 5 V
Pot
0.22 F
0.8" Optional Display
470K
A
B
J
C
D
F
H
K
M
N
P
R
— 5 V
9K53
– AC1
– AC2
– AC3
J3
– AC4
P R
HOLD
HOLD/TEST
COMMON
SIGNAL
INPUT
LOW
Zero Pot
40K2
5K
Protection
Circuit
Input
S
GND
47K
PCB
Decimal Select Header
+ 5 V — 5 V
Hold
Input HI
Display Driver
Input LO
Dual Slope
A to D and
Span Pot
To Display
12 Bit
Test
1.XXX
1X.XX
1XX.X
1XXX.
Turn Clockwise to
Increase Reading
Turn Clockwise to
Increase Reading
Pins 6, 7, F & H - Signal High Input: Signal High input for the
meter. Two factory installed ranges for direct connection to a 1A
or 5A CT (Current Transformer).
Pins 8, 9, J & K - Signal Low Input: Signal low input of the A/D
Converter.
Pins 11 & M - AC1 - Live AC Power Input:
Pins 12 & N - AC2 - 110/220V AC Power Select:
Pins 13 & P - AC3 - 110/220V AC Power Select:
Pins 14 & R - AC4 - Neutral AC Power Input:
Right Front
1. Apply an input of 0 amps AC to the meter by shorting the
2. Connect the secondary of the current transformer (CT) to
3. Adjust the Span Pot until the meter displays the required
4. The UM-35ACI is now calibrated and ready for use.
Left Front
AC Amps
Component Layout
Signal Conditioning Components
Calibration Procedure
To the
To the
PCB Edge
Connector
Terminals
TB-KIT
Screw
Input High
inputs. Adjust the Zero pot until the meter reads 000.
the meter inputs, and apply a known current. For high cur-
rent CTs, a known AC current, proportionate to the CT out-
put, should be used for calibration.
reading for the current being applied.
(Whenever a new range is selected, re-calibration is required to
meet the specified accuracy).
Input Low
AC1 & 2 Joined
AC Neutral
AC Line
J5
10 11 12 13 14 15
L
100 to 120V AC
A
A
C
1
M
B
SPAN Potentiometer (Pot)
The 15 turn SPAN pot is always on the right side
(as viewed from the front of the meter). Typical
adjustment is 100% of the input signal range.
A
C
2
N
ZERO Potentiometer (Pot)
The ZERO pot is to the left of the SPAN pot (as
viewed from the front of the meter). Typically it
enables the displayed readings to be offset
±500 counts.
September 10, 2003 UM-35ACI Data Sheet (UM03)
C
Current Shunt
A
C
3
P R S
D
1A or 5A
AC2 & 3 Joined
A
C
4
E
200 to 240V AC &
10 11 12 13 14 15
L
A
Optional 24V
A
C
1
M
B
AC2 & 3
Joined
A
C
2
N
C
A
C
3
P R S
D
A
C
4
E
Potentiometer
9-26V DC/12-24V AC
Span Adjust
Optional VO-DISO
10 11 12 13 14 15
L
See below for
A
connections
A
C
1
M
Potentiometer
B
Zero Adjust
A
C
2
N/C
N
C
A
C
3
P R S
D
A
C
4
E