Terminal Connections - M-system Sentronic Mini-M M2XPA3 Series Manual

■ WALL MOUNTING
Refer to 'EXTERNAL DIMENSIONS.'
INPUT *
1
CONFIGURATOR
*1. Input Connection Examples
n Open Collector
or Mechanical Contact
+
1
–
4
–
PWR
+
5
5kΩ
n 2-Wire Current Pulse
• Built-in Excitation
100Ω
4
+
5
2-WIRE
PICK-UP
–
8
• External DC Supply
DC SUPPLY
100Ω
–
4
+
5
+
2-WIRE
PICK-UP –
8

TERMINAL CONNECTIONS

Connect the unit as in the diagram below or refer to the con-
nection diagram on the side of the unit.
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Check DIP switch setting.
3) Power input voltage: Check voltage across the terminal
13 – 14 with a multimeter.
4) Input: Check that the input voltage is within 0 – 100% of
full-scale.
5) Output: Check that the load resistance meets the de-
scribed specifications.
6) Status indicator LED: Check that it flashes in the nor-
mal patterns.
ZERO/SPAN ADJUSTMENTS
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
For matching the signal to a receiving instrument or in case
of regular calibration, fine zero and span adjustments can
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Produkte, Support und Service
+
1 9
OUTPUT
–
4 12
5 13
U(+)
POWER
8 14 V(–)
JACK
n Voltage Pulse
+ 1
–
4
–
Vsns
PWR
+
5
n RS-422 Line Driver Pulse
+
1
INPUT
Vsns
4
–
+
5
PWR
8
–
Vsns
Rugghölzli 2
CH - 5453 Busslingen
be done to ±5% by pressing UP/DOWN switches enabled
with the zero/span selector switch. Calibrated values are
stored in the non-volatile memory, which will not be lost
even when you turn off power supply to the unit.
n FRONT VIEW (with cover open)
Configurator Jack
Status Indictor LED
Zero/Span Selector
Top: SPAN
Middle: OFF
Bottom: ZERO
UP/DOWN Switches
The front cover cannot be opened to 180 deg.
when flush with neighboring units.
Zero and span are respectively set to 0% and 100% at the
factory.
■ FRONT VIEW (with cover open)
Vsns
Zero/Span Selector
ZERO: UP/DOWN switches usable for zero adjust-
ment.
OFF: UP/DOWN switches unavailable.
SPAN: UP/DOWN switches usable for span adjust-
ment.
UP/DOWN Switches
UP: Pressing UP increases adjusted values.
DOWN: Pressing DOWN decreases adjusted values.
Vsns
■ HOW TO CALIBRATE THE ZERO
Slide the Zero/Span Selector to the bottom position and
press UP or DOWN switch. Incrementing speed will be
doubled when you keep pressing a switch.
■ HOW TO CALIBRATE THE SPAN
Slide the Zero/Span Selector to the top position and press
UP or DOWN switch. Incrementing speed will be doubled
when you keep pressing a switch.
■ HOW TO RESET
After you calibrated manually with these switches, you
can reset them to its ex-factory state by pressing both UP/
DOWN switches at once.
■ ADJUSTMENT PROCEDURE
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the power supply on and warm up for
more than 20 minutes.
1) ZERO: Apply 0% input. Slide the Zero/Span Selector
to the bottom position. Press UP or DOWN switch and
adjust output to 0%.
2) SPAN: Apply 100% input Slide the Zero/Span Selector
to the top position. Press UP or DOWN switch and ad-
just output to 100%.
3) Check ZERO adjustment again with 0% input.
4) The ZERO and SPAN adjustments are processed in
Tel. +41 (0)56 222 38 18
Fax +41 (0)56 222 10 12
M2XPA3
EM-504 Rev. P.  / 5
mailbox@sentronic.com
www.sentronic.com
n LEFT S