■ 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.
■ DIN RAIL MOUNTING
Set the base socket so that its DIN rail adaptor is at the bottom. Position 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.
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor
■ WALL MOUNTING
Refer to “EXTERNAL DIMENSIONS.”
M2DYH2
INSTRUCTION MANUAL
CURRENT LOOP SUPPLY
(applicable to HART signal)
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.
MODEL
• 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.
• Be sure that the ventilation slits are not covered with cables, etc.
■ PACKAGE INCLUDES:
Signal conditioner (body + base socket) ...................... (1)
■ MODEL NO.
Confirm that the model number described on the product is 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.
M2DYH2
■ 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.
COMPONENT IDENTIFICATION
POINTS OF CAUTION
■ CONFORMITY WITH EC DIRECTIVES
• This equipment is suitable for use in a Pollution Degree
2 environment and in Installation Category II, with the maximum voltage of 300V.
Basic insulation is maintained between signal input and output. Prior to installation, check that the insulation class of this unit satisfies the system requirements.
• The equipment must be mounted inside a panel.
• Altitude up to 2000 meters
• The actual installation environments such as panel configurations, connected devices, connected wires, may affect 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 conformity.
Fixing Screw
Zero Adj.
Span Adj.
Body
Model
ZERO
SPAN
Base Socket
Connection
Diagram
Specifications
INSTALLATION
Loosen the fixing screw at the front of the unit in order to separate the body from the base socket.
■ POWER INPUT RATING & OPERATIONAL RANGE
Locate the power input rating marked on the product and confirm its operational range as indicated below:
100 – 240V AC rating: 85 – 264V, 47 – 66 Hz, approx. 4 – 7VA
24V DC rating: 24V ±10%, approx. 3W
11 – 27V DC rating: 11 – 27V, approx. 3W
110V DC rating: 85 – 150V, approx. 3W
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-5109 Rev.1
P. 1 / 2
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the side of the unit.
INPUT
2-WIRE XMTR
PWR SUPPLY
+
–
+
1
4
5
9
12
+
4–20mADC
OUTPUT
–
R
L
13 U(+)
14 V(–)
POWER
HHC
*
*Hand-held communicator
■ When Used as DC Supply ■ When Used as Isolator
–
2-WIRE
XMTR
+
*
HHC –
+
1
4
5
250 Ω
*
HHC INPUT
– 4
+ 5
250 Ω
M2DYH2
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.
■ 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 procedure 1) – 3).
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
13 – 14 with a multimeter.
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.
For HART communication, the resistance must be 225 - 600 Ω.
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 accuracy described in the data sheet. When the output is out of tolerance, recalibrate the unit according to the “ADJUST-
MENT PROCEDURE” explained earlier.
EXTERNAL DIMENSIONS unit: mm (inch)
21.5 (.85) 10 (.39)
6 (.23)
DIN RAIL
35mm wide
2–4.2x5
(.17x.20)
MTG HOLE
6 (.24) deep
8
4 1
5
8–M3
SCREW
12
14 13
9
84 (3.31)
114 (4.49) [4 (.16)]
15 (.59)
23 (.91)
• When mounting, no extra space is needed between units.
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-5109 Rev.1
P. 2 / 2
