M-system 18PV User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1820 Rev.4 P. 1 / 3
INSTRUCTION MANUAL
P/I TRANSDUCER MODEL 18PV
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
■POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
24V DC rating: 24V ±10%, approx. 35mA
■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
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.
■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 sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
COMPONENT IDENTIFICATION
Body
Specifications
Front Cover
(Connection diagram
behind)
■FRONT VIEW (with cover open)
+–
Span Adj.
Zero Adj.
INSTALLATION
Use Standard Rack (model: 18BXx or 18KBXx).

18PV
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1820 Rev.4 P. 2 / 3
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram behind the front cover.
■EXTERNAL DIMENSIONS unit: mm (inch)
98.6 (3.88) 110 (4.33 )
20 (.79)
23.7 (.93)
PNEUMATIC
CONNECTION
Rc 1/4” or 1/4” NPT
76 (2.99)
14.5 (.57)
33 (1.30)
2–M3 SCREW
NPT
FITTING
20 (.79)27 (1.06)
93 (3.66)
■CONNECTION DIAGRAM
PNEUMATIC
INPUT
OUTPUT 2
+
–
CONNECTOR
POWER
OUTPUT 1
OUTPUT 2
■TERMINAL ASSIGNMENTS
+–

18PV
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1820 Rev.4 P. 3 / 3
WIRING INSTRUCTIONS
■SCREW TERMINAL
Torque: 0.8 N·m
PIPING
The pneumatic inlet is female screwed of Rc 1/4” (1/4” NPT
optional with a fitting). Tightening torque is at the maxi-
mum of 12 N·m. Check that there is no air leak at the con-
nection after sealing it.
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage supplied to the rack
(model: 18BXx or 18KBXx). For the DC power source, be
sure that the ripple level is within 10% p-p.
3) Input: Check that there is no air leak at the pneumatic
connection.
4) Output: Check that the load resistance meets the de-
scribed specifications.
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 in the
following.
■HOW TO CALIBRATE THE OUTPUT 1
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).
5) No need of adjustments for the Output 2.
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.