SARM15A-000 Yokogawa Relay Contact Input Board

SARM15A-000 Yokogawa ARM15A Relay Input Module

SARM15A-000 Yokogawa ARM15A Relay Input Module

Disponibilidad: 20 Quedan en stock

Yokogawa SARM15A ARM15A-000 Mechanical Relay Contact Input Board Configured for dry contact signal conditioning in CENTUM CS 3000 architectures, the...

Código: SARM15A-000

Manufacturer: Yokogawa
Product No.: SARM15A-000
Product Type: Digital Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 2200g
Shipping port: Xiamen
Warranty: 12 months

Descripción Reseñas

Yokogawa SARM15A ARM15A-000 Mechanical Relay Contact Input Board

Configured for dry contact signal conditioning in CENTUM CS 3000 architectures, the Yokogawa SARM15A-000 (ARM15A) Mechanical Relay Contact Input Module provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

The part numbering structure defines the underlying module hardware and terminal revision:

SARM15A / ARM15A: Base model designation for 32-channel mechanical relay contact input boards.
-000: Standard hardware revision specifying M4 screw-type field terminal connection points.

Hardware Specifications

Parameter	Specification
Model	SARM15A-000
Brand	Yokogawa
Origin	Japan
Weight	2.2 kg
Dimensions	482.6 x 132.5 x 105 mm
Operating Temp	0 deg C to +55 deg C
Storage Temp	-20 deg C to +70 deg C
Power Consumption	~20 mA per channel at 24 VDC
Channels	32 input points
Supported Signals	Dry contact switches, sensors, or voltage inputs
ON State Resistance	<= 150 ohm
OFF State Resistance	>= 200 kohm
Rated Input Voltage	24 VDC
Contact Capacity	>= 30 VDC, 20 mA load
Isolation Resistance	>= 10 Mohm
Dielectric Strength	1.5 kV AC (input-to-ground), 0.5 kV AC (power-to-ground)
Field Connection	M4 screw terminals
Compatible Signal Cables	AKB331 (32-point connection), AKB337 (64-point connection)
Compatible Modules	ADV151 (32-point DI), ADV161 (64-point DI)
Mounting	19-inch rack mount

Channel-to-Channel Isolation and Loop Performance

The unit routes discrete digital inputs across optoisolated and mechanical relay isolation barriers, delivering channel-to-channel isolation that limits noise propagation and prevents ground loops across sensitive control circuits. Dielectric strength testing validates performance up to 1.5 kV AC between input circuits and chassis ground. Cold junction compensation (CJC) pathing is bypassed for pure dry contact sensing, maintaining low loop impedance across long cable runs connected via AKB331 interface wiring.

Frequently Asked Questions

Q: What are the primary cable and I/O module pairings for the SARM15A-000 terminal board?

A: The board interfaces directly with Yokogawa ADV151 (32-point DI) and ADV161 (64-point DI) modules via AKB331 (32-point) or AKB337 (64-point) signal cables.

Q: What loop resistance levels determine valid state detection on input contacts?

A: The hardware detects an ON state when loop resistance drops to 150 ohm or less, and recognizes an OFF state when resistance reaches or exceeds 200 kohm.

Q: How does the module handle electrical isolation between field input signals and cabinet ground?

A: Galvanic separation provides dielectric protection up to 1.5 kV AC between input field terminals and chassis ground, and up to 0.5 kV AC between internal power circuits and ground.

Field Installation Guidelines

Mount the board into standard 19-inch rack enclosures using specified hardware fixtures. Route signal cables separately from high-voltage AC lines to prevent electromagnetic induction. Terminate field wires to M4 screw terminals, torqueing to a standard 1.2 Nm rating to prevent contact resistance variations. Secure field conduit connections ensuring a minimum engagement of 5 full NPT threads. Ensure the cabinet earth ground connects directly to the chassis ground lug via low-impedance copper strap to optimize noise immunity.

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