Texmate, Inc. Tel. (760) 598-9899 • www.texmate.com
Page 2
DX-35_UL DS (DX1_UL)
1 3 5 7
2 4 6 8
9
10
Socket for Input Signal
Conditioning Module
I
-
Series Input Signal
Conditioning Module
Common
Hold
Test
9
Dim/Blank
10
11
12
14
15
2
3
5
1
4
1
2
3
4
5
6
7
8
9
10
Input and output
pins vary for
different modules.
Please see the
specific module
data sheet for
details.
1.25 V
Bandgap
Reference
12 bit dual
slope A to D
converter and
display driver
47K
47K
0.22
Input Hi
Input Lo
+5VDC
-5VDC
+24VDC
Ref Hi
Analog Common
System Ground
MUXO
24 V Return
GND
+ 5 V
– 5 V
1 V
GND
PTC
MOV
EMI Filter
Optional
External
Grounding
Pin
Isolated
Switching
Supply
-5 V DC
+5 V DC
+24 V DC
GND
ISO
GND
0.8" Display
.XXXX
X.XXX
XX.XX
NO DP
XXX.X
1.XXXX
1X.XXX
1XX.XX
1XXX.X
Cut loop to turn OFF last digit
0.56" Display
DX-35 Functional Diagram
Solder Side
Rear Pinouts
Decimal Select Header
AC Neutral, – DC
AC Line, + DC
AC/DC Power Input
Functional Diagram
Pins 1 to 6 - Input Module: See the individual pin out of the
input signal conditioning module selected. Usually Pin 1 is the
Signal Input High pin and Pin 3 is the Signal Input Low pin. All
calibration and scaling functions are performed on the individual
input signal conditioner module. See pages 6 and 7.
Pin 9
- Hold: If this pin is left unconnected the meter will
operate in a free running mode. When this pin is connected
to the Common Pin 11, the meter display will be latched. A/D
conversions will continue, but the display will not be updated until
Pin 9 is disconnected from Pin 11.
Pin 10
- Display Test: When this pin is connected to the Common
Pin 11, all segments of the display light up and 1888 is displayed.
This is used to detect any missing segments in the display.
Pin 11
- Common: To Hold, Test or Dim the display, the re spec-
tive pins have to be connected to this Common Pin.
Pin 12 - Dim/Blank: When this pin is connected to the Common
Pin 11 the display is blanked out. If it is connected through an
external 1KΩ pot, the display may be dimmed.
Pin 14 & 15
- AC/DC Power Input: These pins are the power
pins of the meter and they only accept a special polarized screw
terminal plug that can not be inserted into any other input socket.
The standard meter has a auto sensing AC/DC power supply that
operates from 85-265 VAC/95-300 VDC (PS1 Std). An optional
isolated low voltage power supply that operates from 15-48
VAC/10-72 VDC (PS2) is also available.
OPTIONAL EXTERNAL DECIMAL POINT
SELECTION BOARD
Pins 6, F - Decimal Common
: Connect to these pins to activate
decimals.
Pins 7, H - Decimal XXXX.
: Connect to pin 6 or pin F to activate
decimal XXXX..
Pins 8, J - Decimal XXX.X
: Connect to pin 6 or pin F to activate
decimal XXX.X.
Pins 9, K - Decimal XX.XX
: Connect to pin 6 or pin F to activate
decimal XX.XX.
Pins 10, L - Decimal X.XXX
: Connect to pin 6 or pin F to
activate decimal X.XXX.
Connector Pinouts
Pin Descriptions
14 15
8 9 10 11
1 2 3 4 5 6
12
AC/DC Power
Function Pins
15 to 48 VAC
10 to 72 VDC
85 to 265 VAC
95 to 300 VDC
HOLD
TEST
DIM / BLANK
COMMON
AC
Neutral
– DC
AC
Line
+ DC
PS2
PS1
See Lynx Family Input
Signal Conditioning Modules
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
A B C D E F H J K L M N P R S T U V
This meter uses plug-in type screw terminal connectors for all
input and output connections. The power supply connections
(pins 14 and 15) have a unique plug and socket outline to
prevent cross connection. The main board uses standard right-
angled connectors.
This meter uses plug-in type screw terminal connectors for all connections.
WARNING
:
AC and DC input signals and power
supply 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.
!
Optional External Decimal Point
Selection Board
Connectors
Optional External
Decimal Select
Board
