ARCHITECT’S & ENGINEER’S

SPECIFICATION

The power amplifier shall be capable of stereo or mono bridged operation. In stereo mode, it shall deliver a minimum of 52 W into loads of 8 ohms each with both chan- nels operating, or 60 W into loads of 4 ohms each with both channels operating. In mono bridge mode, it shall deliver a minimum of 120 W into an 8 ohm load. It shall be passively cooled, and shall have internal short-circuit and thermal pro- tection circuitry. A protection LED indicator shall activate and the power amplifier shall shut down to protect against short circuits, overheating, severe overcurrent conditions or DC offset present at the outputs. The power amplifier shall have slow start-up and muted inputs on turn-on. Inputs shall be on balanced 1/4″ tip-ring-sleeve connectors and outputs shall be on 1/4″ phone connectors and on push- spring terminals. The front panel shall have independent level controls for left and right channels, a master power switch and LED indicators for clip, idle and amplifier protection.

The power amplifier shall have a frequency response of less than 10 Hz to 100 kHz, signal-to-noise equal to or greater than 103 dB and THD less than 0.5%. Total power consumed at full audio power shall be 240 W (120 Vac) and 975 W (220 Vac). The dimensions shall allow for stan- dard 19″ EIA rack mounting. It shall be 1.75″ (44 mm; 1 rack space) high and 11.5″ (292 mm) deep. Weight shall be

15.6lb. (7 kg). The power amplifier shall carry a three-year warranty.

The power amplifier shall be a SAMSON SERVO 120.

SERVO 120 SPECIFICATIONS

Output Power (typical all channels driven):

 

 

 

4 Ω , 1 kHz, 1% THD, 83 W

 

 

4 Ω

, 1 kHz, .034% THD, 60 W

 

 

8 Ω

, 1 kHz, 1% THD, 57.5 W

 

 

8 Ω , 1 kHz, <.019% THD, 52 W

 

8 Ω bridged, 1 kHz, 1% THD, 160 W

 

8 Ω bridged, 1 kHz, < .08% THD, 120W

Frequency Response (-3 dB):

 

<10 Hz to 100 kHz

Frequency Response (1 watt):

 

20 Hz to 20 kHz, -0.1/-0.2

Crosstalk (adj. channels):

80 dB, 1 kHz @ rated output

Distortion (THD+N, 20 Hz to 20 kHz) (80 kHz LPF):

at rated power:

 

 

< .05%

at 1 watt:

 

 

< .05%

Sensitivity (level control at maximum):

 

+4 dBu

Damping Factor (8 Ω

):

 

> 150

Dynamic Range:

 

 

98 dB below rated output

 

 

 

(20 Hz to 22 kHz B.P.F.)

Headphone Output Level:

 

240 mW at 8 Ω (1 kHz)

Input Impedance:

>10 k Ω

balanced/> 10 k Ω unbalanced

Power Consumption:

 

 

240 W @ 120 V/60 Hz

 

 

 

270 W @ 220 V/50 Hz

Dimensions:

 

17.5″ (w) x 1.75″ (h) x 11.5″ (d)

 

444 mm (w) x 44 mm (h) x 292 mm (d)

Weight:

 

 

15.6 lb / 7 kg

FREQUENCY RESPONSE

AUDIO PRECISION Servo 120 LEVEL (dBr) vs FREQ (Hz) 0dB ref

5.0000

Ap

4.0000

3.0000

2.0000

1.0000

0.0

-1.000

-2.000

-3.000

-4.000

-5.000

10

100

1k

10k

50k

Specifications subject to change without notice. ©1998 Samson

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Samson warranty ARCHITECT’S & ENGINEER’S Specification, Servo 120 Specifications, Frequency Response
Page 1

Servo 120 specifications

The Samson Servo 120 is a sophisticated control valve positioner designed to enhance the precision and reliability of various industrial applications. As a crucial component in process automation, the Servo 120 integrates advanced technologies that optimize the operation of control valves, ensuring accurate positioning even under demanding conditions.

One of the standout features of the Samson Servo 120 is its exceptional control accuracy. With a minimalist design that includes a high-performance digital controller, the Servo 120 offers precise positioning with minimal deviation. This calibration enhances process efficiency, reduces energy consumption, and promotes smoother operation of machinery.

The Servo 120 utilizes advanced feedback mechanisms, which provide real-time information about the valve position. This feedback loop allows for instant adjustments, ensuring that the valve responds effectively to changes in the system. As such, it minimizes the risks associated with process fluctuations and maximizes operational safety.

An essential characteristic of the Samson Servo 120 is its robust construction. Designed to withstand various environmental conditions, the unit is built from high-quality materials that resist corrosion and wear. This durability extends the lifespan of the positioner and reduces maintenance costs, making it a cost-effective solution for industries such as petrochemical, pharmaceutical, and water treatment.

Moreover, the Samson Servo 120 features user-friendly interfaces, making it easy for operators to configure and monitor the device. It includes an intuitive display that provides valuable information about the positioner’s status, operating parameters, and diagnostic data. This accessibility enhances user interaction and simplifies troubleshooting processes.

Another innovative aspect of the Servo 120 is its compatibility with various communication protocols, including HART and Profibus. This allows for seamless integration with existing automation systems, facilitating real-time data exchange and remote monitoring capabilities. Consequently, facility managers can observe and control their processes with greater ease and efficiency.

In conclusion, the Samson Servo 120 is a top-tier control valve positioner characterized by its accuracy, durability, and advanced technological integration. With its robust feedback mechanisms and user-friendly interface, it stands as a reliable solution for industries aiming to enhance operational performance and achieve precise process control.
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