Meiyo Electric SMP-MC and SMP-MC1 Pressure Transmitters

Nichiboku's industrial Insights

Introduction

Pressure transmitters used in machinery monitoring must match the required pressure range, electrical output, pressure port, accuracy, installation environment and receiving instrumentation.

The Meiyo Electric SMP-MC and SMP-MC1 are compact pressure transmitters that convert pressure variation into a 4–20 mA DC analog signal. Meiyo Electric uses a thin-film strain-gauge pressure element formed on a stainless-steel diaphragm and a compact block-type construction.

The manufacturer identifies the complete second model as SMP-MC1. “MC1” alone should not be used as the equipment designation when preparing an RFQ. (Meiyo Electric SMP-MC Pressure Transmitter)

Compact Meiyo Electric SMP-MC and SMP-MC1 pressure transmitter featuring a robust metal block housing and an integrated electrical connector.

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Compact Pressure Measurement and Signal Transmission

The SMP-MC Series is designed for installations where available mounting space and wiring access are important. Meiyo Electric identifies two principal product features:

• Compact block-type construction

• Connector-based wiring intended to simplify electrical connection

The transmitted signal can be integrated with compatible monitoring or control equipment. However, compatibility must be confirmed from the complete transmitter code, power supply, output requirements, load resistance and installation conditions.

Confirmed Manufacturer Specifications: Meiyo Electric SMP-MC Pressure Transmitter

Parameter	Confirmed Manufacturer Specification
Manufacturer	Meiyo Electric Co., Ltd.
Product Type	Pressure transmitter
Model Family	SMP-MC and SMP-MC1
Measurement Principle	Thin-film strain gauge with stainless-steel diaphragm
Power Supply	24 V DC, −25% to +30%
Power-Supply Ripple	500 mVp-p or less
Output Signal	4–20 mA DC
Load Resistance	550 Ω at 24 V DC
Accuracy	±1% F.S.; ±0.5% F.S. option
Temperature Drift	±0.03% F.S./°C
Protection	IP54
Cable Gland	JIS F8801 15
Pressure-Port Material	SUS or BS
Case Material	Aluminum block
Weight	340 g
Operating Temperature	−20 to 70°C
Correction Temperature	5 to 55°C
Vibration Resistance	5–25 Hz: ±1.6 mm; 25–100 Hz: 4G
Additional Feature	EMI resistance stated

Pressure-Resistance Value Requiring Confirmation

The official manufacturer pages contain conflicting pressure-resistance values:

• English product page: 1.6 times the maximum measurable pressure

• Japanese product page: 1.5 times the maximum measurable pressure
  

Neither value should be applied to equipment selection until Meiyo Electric confirms the value applicable to the requested model code.

SMP-MC and SMP-MC1 Model-Code Structure

The official model-selection chart separates the two models by prefix and pressure-receiving-port code.

Selection Element	Confirmed Coding Information
Model Prefix	SMP-MC or SMP-MC1
SMP-MC Pressure-Port Code	C4
SMP-MC1 Pressure-Port Code	02
Pressure-Port Material	BS identifies brass in the selection chart
Accuracy Code	10: 1% F.S.; 05: 0.5% F.S.; Z: other
Standard Gland Code	1c
Other Gland Codes	1a: 15a; 1b: 15b; 1c: 15c; 2a: 20a; 2b: 20b
Standard Color Code	N
Cable-Length Code	0: none; 010–050: 1–5 m; 1 m increments up to 20 m

Confirmed pressure-range codes include:

Code	Pressure Range	Code	Pressure Range
A	0–0.1 MPa	L	0–3.5 MPa
B	0–0.2 MPa	M	0–5.0 MPa
C	0–0.3 MPa	P	0–10 MPa
D	0–0.4 MPa	Q	0–15 MPa
E	0–0.6 MPa	U	0–25 MPa
F	0–1.0 MPa	W	−0.1–0.2 MPa
G	0–1.5 MPa	Y	−0.1–0.4 MPa
H	0–2.0 MPa	Z	Range other than A–Y

The manufacturer chart provides SMP-MC-F-C4BS-101c-N0 and SMP-MC1-F-02BS-101c-N0 as coding examples. These examples define the code format only; they are not recommended configurations for a specific application.

Four different angles of the Meiyo Electric SMP-MC and SMP-MC1 pressure transmitter family, showcasing the front, right, rear, and left external views, highlighting the compact and efficient design suited for accurate pressure measurement.

Specification and Replacement Boundary

The public information does not confirm process-fluid compatibility, pressure-port dimensions, response time, long-term stability or installation-specific approvals.

The pressure range shown in an illustration or the external similarity of two transmitters does not establish interchangeability. SMP-MC and SMP-MC1 use different pressure-port codes, and the exact mechanical difference must be verified from the applicable manufacturer drawing.

The supplied images are illustrative external views. They are not manufacturer drawings and must not be used to determine dimensions, materials, certification or installation compatibility.

Technical Information Required for Quotation

Required Information	Technical Evidence or Value to Provide
Manufacturer and Full Model Code	Complete SMP-MC or SMP-MC1 code and readable nameplate
Original Documentation	Manufacturer drawing, datasheet or previous purchase specification
Pressure Range	Required minimum and maximum measurement pressure
Process Medium	Complete fluid or gas identification
Operating Conditions	Normal and maximum pressure, temperature, vacuum or pressure pulsation
Electrical Requirements	Power supply, 4–20 mA compatibility, load resistance and wiring
Accuracy Requirement	±1% F.S., ±0.5% F.S. option or other documented requirement
Pressure Port	Port code, connection dimensions, material and installation drawing
Cable and Gland	Gland code, cable length and connector requirements
Installation Environment	Mounting position, available space, vibration and moisture exposure
Procurement Information	Quantity, end user or plant, direct supply or tender, destination and quotation deadline
Marine Delivery Information	Vessel name, IMO number, delivery port and port-stay window when applicable

Submit the nameplate, drawing and technical requirements through the Nichiboku RFQ form.

Service Life and Condition Assessment

The official SMP-MC product information does not state a fixed service-life value.

Continued suitability should be evaluated from output accuracy, zero and span stability, pressure cycling, vibration history, connector condition, sealing condition, corrosion and maintenance records. Installation age alone does not confirm remaining service life.

International Sourcing from Japan

Nichiboku supports marine operators, maintenance departments, industrial end users, EPC contractors and procurement teams requiring identified Meiyo Electric pressure transmitters from Japan.

Review Meiyo Electric products through Nichiboku or explore the Virtual Product Catalogue of Japanese industrial equipment.

Quotation and supply feasibility remain subject to confirmation of the complete model code, operating conditions, manufacturer review and current availability.

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