ATA4S-10 Yokogawa CENTUM VP Datasheet & Technical Manual

ATA4S-10 Yokogawa CENTUM VP Pressure Clamp Terminal Block

ATA4S-10 Yokogawa CENTUM VP Pressure Clamp Terminal Block

Availability: 20 left in stock

Yokogawa ATA4S-10 Pressure Clamp Terminal Block The Yokogawa ATA4S-10, also cataloged as the ATA4S Pressure Clamp Terminal Block, operates as...

SKU: ATA4S-10 S2

Manufacturer: Yokogawa
Product No.: ATA4S-10 S2
Product Type: Terminal Blocks
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ATA4S-10 Pressure Clamp Terminal Block

The Yokogawa ATA4S-10, also cataloged as the ATA4S Pressure Clamp Terminal Block, operates as a dedicated hardware component for 16-channel analog input signal termination and integrated surge suppression within Yokogawa CENTUM VP process control systems.

Suffix Breakdown & Model Matrix

The ATA4S architecture uses specific suffix codes to define built-in hardware protection options:

Model ATA4S: Pressure Clamp Terminal Block for Analog Signals (16-channel configuration).
Suffix -1: Integrated surge absorber circuit installed across input lines.
Suffix -0: Fixed design code designated for standard hardware revisioning.

Hardware Specifications

Parameter	Specification
Model	ATA4S-10
Brand	Yokogawa
Origin	Japan
Product Type	16-Channel Pressure Clamp Terminal Block
Channel Capacity	16 analog input channels
Supported Signal Types	RTD, Thermocouple, mV, Potentiometer, 4-20 mA HART
Terminal Connection Type	Screwless pressure clamp mechanism
Surge Protection	Integrated surge absorber (Suffix -1 option)
Rated Voltage	250 VAC / VDC
Rated Current Limit	10 A per terminal maximum
Insulation Resistance	500 M ohm minimum at 100 VDC
Dielectric Strength	1500 VAC for 1 min
Dimensions (W x H x D)	114 mm x 32.6 mm x 60.5 mm
Weight	0.2 kg
Power Consumption	Passive device (zero internal logic bus power draw)
Operating Temperature	-20 deg C to +60 deg C
Storage Temperature	-40 deg C to +75 deg C
Humidity Range	10% to 90% RH (non-condensing)
Environmental Standard	ISA Standard G3 conformal coating compliant

Signal Conditioning & ISA G3 Conformal Coating

The unit routes low-level analog input vectors directly from field instruments to Yokogawa DCS interface cables. Internal trace pathways utilize high-conductivity copper alloy plating to minimize contact resistance during millivolt and RTD temperature signal evaluation.

Furthermore, the assembly features ISA Standard G3 compliant conformal coating across exposed terminal traces. This treatment resists corrosive atmospheric contaminants such as hydrogen sulfide (H2S) gas and chlorine vapors commonly present in refinery and chemical processing control environments, preventing pin degradation and signal drift over long operational lifecycles.

Frequently Asked Questions

Q: Does the ATA4S-10 support field wire termination changes while the system is powered?

A: You can safely connect or disconnect individual field signal conductors while system loop power is applied, provided current loads remain strictly under the 10 A limit per terminal and hazardous area hot-work permits are verified.

Q: How does the integrated surge absorber impact thermocouple and millivolt signal accuracy?

A: The surge protection network utilizes low-leakage clamping components wired in parallel to signal lines. Under normal operating voltage levels, the absorber maintains an isolation resistance above 500 M ohm, introducing zero measurable impedance loading to low-voltage analog measurement loops.

Field Installation Guidelines

Mount the ATA4S-10 assembly securely onto standard 35 mm DIN rails inside the field termination cabinet or process interface junction box. First, verify that the DIN rail mechanism latches firmly into place to resist cabinet vibration. Maintain a minimum clearance distance of 50 mm above and below the module housing to allow unobstructed wire routing and adequate air convection.

When wiring field transmitters, strip single-core or ferruled stranded wires to exactly 8 mm to 10 mm. Insert a flat-head screwdriver into the pressure spring actuator slot, slide the stripped conductor into the wire port, and release the tool to lock the clamping mechanism. Ensure field cable shields terminate at the designated cabinet grounding bar rather than floating near analog signal paths. Keep field signal lines physically separated from high-voltage AC distribution power wiring by at least 200 mm inside cable trunks to suppress electromagnetic noise coupling.

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