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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
7 – 8 with a multimeter.
4) Input: Check that the input signal is within 0 – 100% of
the full-scale.
5) Output: Check that the load resistance meets the de-
scribed specifications.
POWER INDICATOR LED
The transmitter is provided with a power indicator LED
which blinks in different patterns indicating various oper-
ating status.
The following figure indicates typical patterns.
TRANSMITTER STATUS
Normal
Downloading the setting
Range setting
Fine adjusting
Supplying a fixed output
Abnormal Operation
(corruption of configuration data)
EQUATION
X
= K
{K
(X
+ A
) + K
(X
0
0
1
1
1
2
2
X
- X
: input signal (%) -2 - +102 %
1
2
K
- K
: gain (no units) ±29.999
0
2
A
- A
: bias (%) ±299.99 %
0
2
Factory default setting
K
= 1, K
= 1, K
= 1, A
= 0%, A
0
1
2
0
MAINTENANCE
Regular calibration procedure is explained below:
■ CALIBRATION
Warm up the unit for at least 10 minutes. Apply the input
signals which should lead the calculated results as 0%, 25%,
50%, 75% and 100%. Check that the output signal for the
respective input signal remains within accuracy described
in the data sheet.
When the output is out of tolerance, recalibrate the unit us-
ing the PC Configurator Software (model: M5CFG).
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.
LED ON OFF PATTERNS
80ms
+ A
)} + A
2
0
= 0%, A
= 0%
1
2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
M5XADS
EM-2777 P. 4 / 4
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