M2XRP2
P. 3 / 5
EM-5059 Rev.5
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
10 – 11 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 speciications.
6) Status indicator LED: Check that it lashes in the nor-
mal patterns.
ZERO/SPAN ADJUSTMENTS
This unit is calibrated at the factory to meet the ordered
speciications, therefore you usually do not need any cali-
bration.
For matching the signal to a receiving instrument or in case
of regular calibration, ine zero and span adjustments can
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.
Zero and span are respectively set to 0% and 100% at the
factory.
■
FRONT VIEW (with cover open)
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.
■
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 suficient
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
a digital processor, and therefore they do not interact.
However, if ZERO value is changed, repeat the above
procedure 1) – 3).
UP/DOWN Switches
The front cover cannot be opened to 180 deg.
when flush with neighboring units.
Configurator Jack
■
■
Input Monitor LED, PL1
Input Monitor LED, PL2
Status Indicator LED
Zero/Span Selector
Top: SPAN
Middle: OFF
Bottom: ZERO
CONFIGURATOR
JACK
+
–
OUTPUT
7
8
U(+)
V(–)
POWER
10
11
+
–
OUTPUT
7
8
U(+)
V(–)
POWER
10
11
CONFIGURATOR
JACK
ROTARY
ENCODER
ROTARY
ENCODER
■
RS-422 LINE DRIVER INPUT
■
OPEN COLLECTOR, VOLTAGE INPUT
4
–
+ 1
5
2
+
+
A
φ
B
COM
φ
PWR
+
–
1
2
+
–
3
6
A
φ
PWR
A
φ
COM
+
–
4
5
B
φ
B
φ
