Omega Products FLSC-64 User Manual

SIGNAL CONDITIONERS FOR TURBINE METERS

Suitable for Direct Mounting onto FTB-930 and FTB-940 Series Flowmeters

FLSC-64

FLSC-61 0 to 5/0 to 10 Vdc Output

The FLSC-61 is a 3-wire analog transmitter designed to linearly convert a frequency input to an equivalent voltage output whose level is switch selectable @ 0 to 5V/0 to 10V.

A full scale frequency range of 75 Hz to 10 kHz is jumper-selectable. The span adjustment establishes the frequency point at which the full scale voltage output (5 or 10V) is achieved. A sensitivity adjustment permits the FLSC-61 to discriminate between a signal input and noise.

SPECIFICATIONS

Temperature: Operating: -40 to 85°C (-40 to 185°F) Storage: -65 to 125°C (-85 to 257°F) Input Voltage: 12 to 28 Vdc @ 50 mA max Signal Input: Frequency 0 to 10 kHz;

amplitude 50 mV to 35V sine or square-wave; impedance 10 kΩ Analog Output: 0V @ 0 Hz, 5 or 10V @ desired full scale frequency Full Scale Range: 75 Hz to 10 kHz, selectable Response Time: 95% of change in 1 second

Linearity: 0.3% FS Temperature Coefﬁcient: <2% of rdg

over entire temperature range

Minimum Load Resistance: 250 Ω Enclosure: FM approved; Class I,

Groups, B, C, D; Class II, Groups E, F, G

Weight: 771 g (1.7 lb)

FLSC-61 shown mounted onto FTB-939 turbine. Visit omega.com/ ftb930

FLSC-62A 4 to 20 mA Output

The FLSC-62A is a 2-wire loop-powered analog transmitter designed to linearly convert a frequency input to an equivalent 4 to 20 mA current output.

A full scale frequency range of 100 Hz to 10 kHz is switch selectable. The span adjustment establishes the frequency point at which a 20 mA output is achieved. A sensitivity adjustment permits the FLSC-62A to discriminate between signal input and noise.

SPECIFICATIONS

Input Voltage:

Minimum: 7V + (20 mA x RL) Maximum: 28V + (4 mA x RL) Analog Output: 4 mA @ 0 Hz, 20 mA @ desired full scale frequency Full Scale Range: 100 Hz to 10 kHz, selectable Response Time: 95% of change in 1 second

Linearity: 0.3% FS Temperature Coefﬁcient: <2% of rdg

over entire temperature range

Minimum Load Resistance: 250 Ω Maximum Load Resistance: 500 Ω Enclosure: FM approved; Class I,

Groups, B, C, D; Class II, Groups E, F, G

Weight: 771 g (1.7 lb)

F-52

FLSC-64 shown smaller than actual size.

All units are suitable for direct mounting onto the FTB-930 turbines. Visit omega.com/ftb930

FLSC-64 Ampliﬁer Squarewave Output

The FLSC-64 ampliﬁes and conditions low-amplitude signals such as those developed by a magnetic pickup coil. The amplitude of the squarewave output equals the input supply voltage of the FLSC-64.

A sensitivity adjustment permits the FLSC-64 to discriminate between an input signal and noise.The FLSC-64 contains a built-in test oscillator that enables the operator to verify the ampliﬁer’s operation without a signal source. The power LED illuminates when the input supply voltage is present.

SPECIFICATIONS

Temperature: Operating: -40 to 85°C (-40 to 185°F)

Storage: -65 to 125°C (-85 to 257°F) Input Voltage:

5 to 28 Vdc, 12 mA @ 12 Vdc Signal Input:

Frequency: 0 to 10 kHz Amplitude: 20 mV pp minimum

-35V sine or square-wave Impedance: 10 kΩ Output: 5 to 28 Vdc squarewave

proportional to input voltage; minimum load@ 250 Ω; short circuit protection

Features: Individual LED indicators for power and output signal; built-in test oscillator that injects 4 Hz test signal when test P/B depressed

Enclosure: FM approved; Class I, Groups, B, C, D; Class II, Groups E, F,G

Weight: Size: 142 W (without union coupling)

x 61 D x 95 mm Dia. (5.6 x 2.4 x 3.75")

771 g (

1.7 lb

)