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EM-1611-A Rev.6

CHECKING

1) Terminal wiring:  Check that all cables are correctly

connected according to the connection diagram.

2) Power input voltage:  Check voltage across the terminal 7

–␣ 8 with a multimeter.

3) Input:  Check that the input signal is within 0 – 100% of

the full-scale.

4) Relay operations: Confirm that the relays operate prop-

erly referring to the figure below.

5) Output load:  Check the output load corresponds to the

table below.

For maximum relay life with inductive load, external
protection is recommended.

ALARM RELAY OPERATIONS

Trip Operation in Power Failure

Output Code: 1, 2, 4

: both relays turn OFF

Output Code: 3

: both relays turn ON

POINTS OF CAUTION

■ 

GENERAL

• Before you remove the unit from its base socket or mount it,
turn off the power supply and input signal for safety.

■ 

ENVIRONMENT

• When heavy dust or metal particles are present in the air,
install the unit inside proper housing and ventilate it.
• Do not install the unit where it is subjected to continuous
vibration.  Do not apply physical impact to the unit.
• Environmental temperature must be within -5 to +60

°

C (23

to 140

°

F) with relative humidity within 30 to 90% RH in order

to ensure adequate life span and operation.

■ 

WIRING

• Do not install cables (power supply, input and output) close
to noise sources (relay drive cable, high frequency line, etc.).
• Do not bind these cables together with those in which noises
are present.  Do not install them in the same duct.

■ 

AND ....

• The unit is designed to function as soon as power is
supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data sheet.

MAINTENANCE

Regular calibration procedure is explained below:

■ 

CALIBRATION

Warm up the unit for at least 10 minutes.
• Hi Setpoint
Increase the input signal from a value lower than the setpoint
and check that the trip point remains within the accuracy
described in the data sheet.
• Lo Setpoint
Decrease the input signal from a value higher than the
setpoint and check that the trip point remains within the
accuracy described in the data sheet.
When the trip points are out of tolerance, contact M-System’s
Sales Office or local representatives.

0

50

100

Input
(%)

Lo Setpoint

Hi Setpoint

Hi Output

(1–2)ON

Lo Output

(5–6)ON

0

50

100

Input
(%)

Lo Setpoint

Hi Setpoint

Hi Output

(1–2)ON

Lo Output

(5–6)ON

•Output Code : 1, 2, 4

•Output Code : 3

OUTPUT

LOAD RESISTANCE

Open collector

50V DC @100mA

Relay

380V AC @100VA
125V DC @30W

SSR

60 – 280V AC @0.1 – 1A

M-SYSTEM WARRANTY

M-System warrants such new M-System product which it manufactures to be free from defects in materials and workmanship during the 36-month period following the date that such
product was originally purchased if such product has been used under normal operating conditions and properly maintained, M-System's sole liability, and purchaser's exclusive remedies,
under this warranty are, at M-System's option, the repair, replacement or refund of the purchase price of any M-System product which is defective under the terms of this warranty.  To
submit a claim under this warranty, the purchaser must return, at its expense, the defective M-System product to the below address together with a copy of its original sales invoice.
THIS IS THE ONLY WARRANTY APPLICABLE TO M-SYSTEM PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  M-SYSTEM SHALL HAVE NO LIABILITY FOR CONSEQUENTIAL, INCIDENTAL OR
SPECIAL DAMAGES OF ANY KIND WHATSOEVER.
M-System Co., Ltd., 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN, Phone: (06) 6659-8201, Fax: (06) 6659-8510, E-mail: info@m-system.co.jp

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