M-system B5MS User manual

B5MS
P. 1 / 2EM-1515 Rev.3
POTENTIOMETER TRANSMITTER MODEL B5MS
INSTRUCTION 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:
Signal conditioner......................................................... (1)
■ 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
■ CONFORMITY WITH EC DIRECTIVES
• The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform-
ity.
■ GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
■ ENVIRONMENT
• Indoor use
• When heavy dust or metal particles are present in the air,
install the unit inside proper housing with sufficient ven-
tilation.
• 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 -40 to +80°C
(-40 to +176°F) with relative humidity within 0 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 sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
COMPONENT IDENTIFICATION
INSTALLATION
Set the unit so that its DIN rail adapter is at the bottom.
■ MOUNTING THE UNIT ON A DIN RAIL
A) Hang the upper hook at the rear side of unit on the DIN
rail.
B) Push in the lower in keeping pressing the unit to the
DIN rail.
■ REMOVING THE UNIT
A) Push down the DIN rail adaptor using a minus screw-
driver.
B) Pull out the lower part of the unit.
C) Remove the upper part from the DIN rail.
Span Adj.
Power LED
Zero Adj.
Body
Spec. Marking
A
B
DIN Rail
C
A
B
Spring Loaded
DIN Rail Adaptor

B5MS
P. 2 / 2EM-1515 Rev.3
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the con-
nection diagram on the front of the unit.
■ EXTERNAL DIMENSIONS unit: mm (inch)
■ CONNECTION DIAGRAM
7 8
5 6
3 4
1 2
94 (3.70)
25 (.98) 41 (1.61) [3.3 (.13)]
• When mounting, no extra space is needed between units.
DIN RAIL
35mm wide
8–M3.5 SCREW
7.3 (.29)
3 (.12)
*
8
7+
–
mA
MONITOR
+
–
+
–
LOAD
6
5
OUTPUT
24VDC
4 – 20mADC
*DC ammeter's internal resistance 10 ohms max.
4
3
2
+
–
3
2
1
POTENTIOMETER
max.
min.
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Input: Check voltage across the terminal 3(+) – 2(–) with
a voltmeter to show 0V at 0% potentiometer input and
the same voltage as that across 4(+) – 2(–) at 100% in-
put.
3) Output: Check that the load is within the permissible
limit including wiring resistance.
Supply Voltage (V) – 12 (V)
Load Resistance (Ω) = ––––––––––––––––––––––––
0.02 (A)
(including leadwire resistance)
4) When you check the output signal, connect an ammeter
of which the internal resistance is of 10Ω max. to the
monitor terminals.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory with the total resist-
ance input, therefore you do not need any calibration if you
use the potentiometer’s total resistance.
When you do not use the total resistance or in case of regu-
lar calibration, adjust the output as explained in the fol-
lowing.
■ HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the power supply on and warm up for
more than 10 minutes.
1) ZERO: Apply 0% input and adjust output to 0%.
2) SPAN: Apply 100% input and adjust output to 100%.
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.
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 PARTICU-
LAR 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: [phone], Fax: (06) 6659-
8510, E-mail: [email protected]