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UQS7

Description

Barksdale's UQS7 Electronic Flow Switch provides a highly accurate monitoring and control solution for water-based fluids. Our UQS7 combines two built-in switchpoints, a 4-20 mA analog output, and a digital flow display in a single, compact unit. Ultrasonic sensing technology measures time of flight between two discrete points, assuring highly accurate measurement with low insertion loss as compared to other types of flow sensors. Setpoints and deadband are easily adjusted by using a built-in, user-friendly menu. Analog transducer outputs are scalable from 25% to 100% of full scale range, providing a high degree of flexibility for a wide range of applications. A 10-bit microprocessor provides built-in self diagnostics and allows for switch time delays up to 9.9 seconds. For applications requiring accurate monitoring of water-based fluids, the UQS7 is an ideal choice.

Features

Flow and volume flow monitoring
Ultrasonic sensor with digital display
Integrated 4-20 mA analog output
Easy to read LED display
Fully configurable via keypad
2 set points and analog output
Suitable for water-based fluids
IP 65 protection

Technical specifications

General Specifications

Accuracy:

2.5% f. s.

Linearity Error:

±2.5% f. s. at 77°F (+25°C)

Repeatability:

±0.1% f. s.

Sensor Element:

Ultrasonic sensor

Material: 
    Wetted Parts: 
    Housing (electronics): 
    Seals (media): 
    Push Buttons:			

Brass
Aluminum die-cast
KlingersilR
Polyester

Measuring ranges:
g/min:
l/min:

2.6 / 6.6 / 10.5 / 26.4 / 44.9
(10 / 25 / 40 / 100 / 170)

Process connection:

G 3/4, G 1, G 1-1/4, G 2

Electrical Connection:

Plug M 12 x 1, 5-pin

Power Supply:

15-32 VDC, reversed polarity protected

Power Consumption:

Appr. 50 mA (without load)

A/D-Converter: 
    Scanning Rate:			

500 ms (for peak value memory)

Analog Output:
Scanning Rate:
Resolution:
Current Output (standard):
Load:

Load Influence:
Voltage Output (optional):
Rating (optional):
Adjustment Range:

500 ms
10 bit (1024 steps per measuring span)
4-20 mA
max. Rl = (Ub-12 V) / 20 mA
Rl = 600 Ohm at Ub = 24 VDC
0.3% / 100 Ohms
0 to 10 VDC
max. 10 mA, short circuit-proof
25% to 100% f. s.

Switching output(s): 
    Switching Function (adjustable): 
    Adjustment Range: 
    Hysteresis: 
    Diagnosis Function: 
    Switching Frequency: 
    Rating: 
    Delay: 
    Status Display(s):			

Normally open/normally closed, stan-dard/windows-mode
0% to 125% f. s.
0% to 125% f. s.
0 to 125% f. s.
max. 100 Hz
max. 500 mA, short circuit-proof
0.0 to 9.9 s adjustable
LED(s) green

Digital Display:

4-digit 7-segment LED-display height 0.5 in., red

Error Display:

LED yellow and alphanumeric display

Display Rate:

500 mS

Operating Elements:

3 easy response push buttons

Temperature Range:
Electronics:
Storage:

39°F to 266°F
14°F to 158°F
-22°F to 176°F

Temperature Influence:

±0.2% f. s. /10K

Compensation Range:

14°F to 158°F (-10° to +70°C)

Protection Class:

IP65

Dimensions (Housing):

3.9 in. X 4.3 in. (UQS7-10)

Inlet - Outflow Zone:

Integrated in the measuring device

Media:

Water and similar media, max. pressure 360 psi (25 bar) (higher pressures on request)

Options:

Electrical plug, adapters

Additional Features:

7-segment LED display, microprocessor-controlled, self-monitoring with error display. All parameters are configured by keypad. Tamper proof, keypad lock, rugged construction, vibration-proof and shock-proof, long term stability, display unit rotatable in steps of 90°.