M-system W2RS1 Instruction Manual
M-system W2RS1 is a versatile RTD transmitter with a range of input and output options, making it suitable for various industrial applications. It offers precise and reliable temperature measurement and transmission, ensuring accurate process control. The device comes with a DIN rail mounting option for easy installation in control panels. With its robust design and wide operating temperature range, W2RS1 can withstand harsh industrial environments. It features adjustable zero and span, allowing for fine-tuning of the output signal to match specific requirements.
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W2RS1
INSTRUCTION MANUAL
RTD TRANSMITTER
MODEL
W2RS1
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 (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.
■ 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.
• With voltage output, do not leave the output terminals shortcircuited for a long time. The unit is designed to endure it without breakdown, however, it may shorten appropriate life duration.
POINTS OF CAUTION
■ WARNING
If equipment is not used in a manner not specified by M-
System, the protection provided by the equipment may be impaired.
■ CONFORMITY WITH EC DIRECTIVES
• This equipment is suitable for Pollution Degree 2 and In stallation Category II. Reinforced insulation (signal input or output 1 or output 2 to power input: 300V) and basic insulation (signal input to output 1 to output 2: 300V) are maintained. Prior to installation, check that the insula tion class of this unit satisfies the system requirements.
• Altitude up to 2000 meters
• The equipment must be mounted inside a panel.
• The equipment must be installed such that appropriate clearance and creepage distances are maintained to conform to CE requirements. Failure to observe these requirements may invalidate the CE conformance.
■ 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 – 6VA
24V DC rating: 24V ±10%, approx. 3W
11 – 27V DC rating: 11 – 27V, approx. 3W
110V DC rating: 85 – 150V, approx. 3W
■ 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.
• Be sure that the ventilation slits are not covered with ca bles, etc.
COMPONENT IDENTIFICATION
Fixing Screw
Output 1
Output 2 *
Zero Adj.
Span Adj.
ZERO
SPAN
Connection
Diagram
Zero Adj.
Span Adj.
ZERO
SPAN
Specifications
* Provided only for dual output.
INSTALLATION
Body
Model
Base Socket
Loosen the fixing screw at the front of the unit in order to separate the body from the base socket.
■ 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.”
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-5516 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.
RTD
A
B
B
1
2
4
7 +
8 –
3 +
6 –
10 U(+)
11 V(–)
OUTPUT 1
OUTPUT 2
POWER
The section enclosed by broken line is only with 2nd output option.
CHECKING
1) Terminal wiring: Check that all cables are correctly con nected according to the connection diagram.
2) Power input voltage: Check voltage across the terminal
10 – 11 with a multimeter.
3) Input: Check voltage across the terminal 1 – 2 with a sensitive voltmeter.
(With 20°C or 68°F, approx. 110mV with Pt 100Ω, approx.
55mV with Pt 50Ω.)
If RTD wires are broken, the output goes over 100% (be low 0% with downscale) due to burnout function. Check leadwires in such a case.
4) Output: Check that the load resistance meets the de scribed specifications.
W2RS1
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered specifications, therefore you usually do not need any calibration.
The output signal can be finely adjusted to match it to a re ceiving instrument, or to compensate input wire resistance when the unit is combined with a zenor barrier. Follow the regular calibration procedure explained below:
■ 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).
5) Go through the same procedure 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 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(.87) 10 (.39)
6 (.23)
DIN RAIL
35mm wide
2–4.2x5
(.17x.20)
MTG HOLE
6 (.24) deep
6
3 2
5
1
4
84 (3.31)
114 (4.49)
11–M3
SCREW
9
11
8 7
10
22 (.87)
29.5 (1.16)
[4 (.16)]
• When mounting, no extra space is needed between units.
4 (.1
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-5516 P. 2 / 2

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