Product Overview

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Consult Bray representatives or factory for the specific requirements and material selection for your
intended application. The right to change or modify product design or product without prior notice is
reserved. Patents issued and applied for worldwide.
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© 2017 Bray International. All rights reserved. 08_2017
HEADQUARTERS
Bray International, Inc.
13333 Westland East Blvd.
Houston, Texas 77041
Tel: [phone]
bray.com
Servo NXT
Precise modulating control of the valve position.
• Shall accept an analog input command signal
proportional to the desired valve position.
• The analog input signal shall be configurable to either
current or voltage input:
• 4-20mA DC, 0-10V DC, 2-10V DC, 0-5V DC.
• Shall have an analog output retransmission signal
proportional to the actual valve position.
• The analog output signal shall be configurable to either
current or voltage output:
• 4-20mA DC, 0-10V DC, 0-5V DC.
• LED driven menu display shall be provided for simplified
commissioning, monitor and control of actuator.
• Voltage spike and transient protection shall be provided
on all input terminals and output terminals.
• Independent isolation shall be provided between analog
input command signal and output retransmission signal
to eliminate ground loops.
• 120/230VAC units shall have inductive isolation
between line voltage and logic level voltages.
• Control characteristic shall be linear and duty cycle shall
be 100%.
• Calibration shall be accomplished by pressing a single
button to initiate the calibration routine.
• Independent adjustments shall be provided for
deadband and for both open and closed speed control
of the actuator.
• Internal feedback shall be by means of a 10k Ohm
potentiometer.
• Manual mode operation shall be provided to allow
for control of actuator when no command signal is
present.
• On-board fault indications shall be provided.
• Shall be designed to meet UL and CE standards.
Series 70 DeviceNet™
Network control and feedback of valve position.
• Shall be available as an option to provide on/off or
modulating capability.
Actuator Approvals & Certifications
• CE
• Low Voltage Directive: 2014/35/EU
• EMC Directive: 2014/30/EU
• Machinery Directive: 2006/42/EC
• RoHS Directive: 2011/65/EU
• IP65
• ABS
• Bureau Veritas Certification
• CSA Certification
• For select 120VAC units.
• UL Certification (cULus)
• For select 120VAC units.
• NEMA Type 4, 4x.
Hazardous Location
• Certified to UL and CSA standards.
• For select 120VAC units.
• NEMA Type 4x, 7, 9.
• Hazardous location enclosure shall be
UL certified to:
• Class I, DIV 1 & 2, Group C, D
• Class II, DIV 1 & 2, Group E, F, G
• Operating Temperature Code: T3B (165°C)
• All unused conduit entry points to be sealed for ingress
protection.
SERIES 70 ELECTRIC ACTUATORS
Recommended Specifications