M-system 6BSN User manual

BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Transmitter module............................................................(1)
Outdoor enclosure ...............................................................(1)
Mounting screws
Bolt (M8 × 15)....................................................................(4)
Spring washer for M8 .......................................................(4)
Mounting bracket assembly (optional)
Mounting bracket..............................................................(1)
M10 U-bolt.........................................................................(2)
Nut for M10 .......................................................................(4)
Spring washer for M10 .....................................................(4)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
POINTS OF CAUTION
■GENERAL PRECAUTION
• Before you remove the unit or mount it, turn off the input
signal for safety.
■ENVIRONMENT
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -5 to +70°C
(23 to 158°F) in order to ensure adequate life span and
operation.
■WIRING
• Do not install cables 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 the input sig-
nal is supplied, however, a warm up for 10 minutes is re-
quired for satisfying complete performance described in
the data sheet.
INPUT LOOP POWERED ISOLATOR MODEL 6BSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8869 Rev.1 P. 1 / 5
INSTRUCTION MANUAL

COMPONENT IDENTIFICATION
Case
Specifications
Transmitter Module
Gasket
Cover
Internal Earthing Screw
External Earthing Screw
Spring Clip(s)
Knurled Knob(s)
Cable Entry Conduit
•Case Details
6BSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8869 Rev.1 P. 2 / 5

EXTERNAL DIMENSIONS unit: mm (inch)
4–M8, 12 deep
92 (3.62)
110 (4.33)
70 (2.76)
118 (4.65)
7 (.28)
max.
39 (1.54)
19 (.75)
92 (3.62)
104 (4.09)
14
(.55)
26
(1.02)
MOUNTING BRACKET
(optional)
110 (4.33) dia.
19 (.75)
2–G 1/2, 1/2NPT, M20x1.5 or PG13.5
174 (6.85)
114 (4.49)
110 (4.33)
SPACE REQUIRED TO REMOVE COVER
6BSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8869 Rev.1 P. 3 / 5

INSTALLATION
■MOUNTING THE ENCLOSURE ON A PIPE ■MOUNTING THE ENCLOSURE ON A WALL
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
+
−
5
6
2
INPUT OUTPUT
+
−
1
6BSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8869 Rev.1 P. 4 / 5

WIRING INSTRUCTIONS
■SCREW TERMINAL
Torque: 0.6 N·m
CHECKING
Open the unit’s outdoor enclosure cover when you conduct
checking of the transmitter. Be sure to close the cover after
the checking is complete.
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Input: Check current with an ammeter. Be sure that the
connected transmitter allows the load shown in the fol-
lowing table.
MODEL EQUIVALENT INPUT IMPEDANCE
6BSN-A 230Ω plus output load
6BSN-H 90Ω plus output load × 0.16
3) Output: Check that output load is within the permissible
limit shown in the following table.
MODEL LOAD RESISTANCE
6BSN-A 50 – 350Ω
6BSN-H 50 – 600Ω
ADJUSTMENT PROCEDURE
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, adjust the output as explained below.
Zero and Span adjustments are located behind the top cover
of the unit. Open the enclosure cover, release the knurled
knobs at the front of the unit and open the top cover.
After the calibration is complete, be sure to close both cov-
ers.
1234
56
VR1 VR2
■HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the input signal on and warm up for
more than 10 minutes.
1) ZERO: Apply 0% input and adjust output to 0% with the
VR1.
2) SPAN: Apply 100% input and adjust output to 100% with
the VR2.
3) Check ZERO adjustment again with 0% input.
4) When ZERO value is changed, repeat the above proce-
dure 1) – 3).
MAINTENANCE
Regular calibration procedure is explained below:
■CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the “ADJUST-
MENT PROCEDURE” explained earlier.
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.
6BSN
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8869 Rev.1 P. 5 / 5