INSTRUCTION MANUAL
DELAY BUFFER
BEFORE USE ....
MODEL
KF/KFS
COMPONENT IDENTIFICATION
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
(body + base socket + input resistor)..................................(1)
Input resistor is provided only with current input type.
Body
Base Socket
Specifications
Zero Adj.
K-UNIT
Input Resistor
Span Adj.
TIME CONS
0.5
■ 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
■ POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
AC power: Rating ±10%, 50/60 ±2 Hz, approx. 2VA
DC power: Rating ±10%, approx. 2W
■ GENERAL PRECAUTIONS
• Before you remove the unit from its base socket 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
ventilation.
• 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 +55°C
(23 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
Time Constant Adj.
T.
10
20 (s)
INSTALLATION
Detach the yellow clamps located at the top and bottom of
the unit for separate the body from the base socket.
■ DIN RAIL MOUNTING
Set the base socket so that its
DIN rail adaptor is at the bottom. Hang the upper hook at
the rear side of base socket on
the DIN rail and push in the
lower. When removing the
socket, push down the DIN
rail adaptor utilizing a minus
screwdriver and pull.
Clamp
(top & bottom)
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor
■ WALL MOUNTING
Shape and size of the base socket
Refer to “EXTERNAL DI- are slightly different with various
socket types.
MENSIONS.”
■ 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 power is supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-3624 Rev.2
P. 1 / 3
KF / KFS
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the front of the unit.
When an input resistor is provided with the module, attach it together with input wiring to the input screw terminals.
■ EXTERNAL DIMENSIONS unit: mm (inch)
CLAMP
(top & bottom)
20
(.79)
7.8 (.31)
6
5
4
3
7
8
1
2
80 (3.15)
80 (3.15)
DIN RAIL
35mm wide
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
50 (1.97)
8–M3.5
SCREW
103 (4.06)
123 (4.84)
40 (1.57)
[3.3 (.13)]
50 (1.97)
• When mounting, no extra space is needed between units.
■ CONNECTION DIAGRAM
+
–
R
3
1 +
4
2 –
OUTPUT
INPUT RESISTOR
(model: REM)
7 U(+)
8 V(–)
POWER
6
5
4
3
7
8
1
2
12 (.47)
INPUT
*
■ TERMINAL ASSIGNMENTS unit: mm (inch)
*Input shunt resistor attached for current input.
Input shunt resistor attached
for current input.
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-3624 Rev.2
P. 2 / 3
KF / KFS
CHECKING
MAINTENANCE
1) Terminal wiring: Check that all cables are correctly connected according to the connection diagram.
Regular calibration procedure is explained below:
2) Power input voltage: Check voltage across the terminal
7 – 8 with a multimeter.
■ 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 accuracy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the “ADJUSTMENT PROCEDURE” explained earlier.
3) Input: Check that the input signal is within 0 – 100% of
the full-scale.
4) Output: Check that the load resistance meets the described specifications.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any calibration.
For matching the signal to a receiving instrument or in case
of regular calibration, adjust the output as explained in the
following.
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.
■ ZERO & SPAN
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 procedure 1) – 3).
■ TIME CONSTANT
Turning the adjustment clockwise (MAX) increases the
time constant, while turning it counterclockwise (MIN) decreases it. Factory set to MIN.
Zero Adj.
Span Adj.
Time Constant Adj.
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-3624 Rev.2
P. 3 / 3
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