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Specifications, Set points – Dwyer TDS User Manual

Page 2

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Step Two

SPECIFICATIONS

TDS _ _ 2

Sensor Material

1 - PP
2 - PVDF

Sensor Length

1 - Short
2 - Long

TDS Series Flow Switch

1,400

1,200

1,000

800

600

400

200

0

12

18

24

30

36

Electrical Loading Limits

Acceptable

Range

Unacceptable

Range

Max. Series Resistance (Ohms)

Supply Voltage (VDC)

100

80

60

40

20

00

12

18

24

30

36

Maximum Temperature/Voltage

Derating @ Maximum Current

Acceptable

Range

Unacceptable

Range

Ambient Sensor

T

emperature (C¡)

Operating Voltage (VDC)

Set point range:

Factory set point:
Repeatability:
Response time:
Set point adjust.:
Viscosity range:
Supply voltage:
Consumption:
Contact type:
Contact rating:

Contact output:
Process temp.:

Electronics temp.:

Pressure:

Sensor rating:
Sensor material:

Cable jacket mat.:

Cable type:

Cable length:
Process mount:
Classification:
CE compliance:

.04 to 3 fps
(.012 to .91 mps)
.2 fps (.06 mps)

±

.5% of set point

1-10 seconds
Potentiometer
1-200 centipoise
12-36 VDC
70 mA maximum
(1) SPST relay
120 VAC/VDC @ 1A
(CE: 60 VAC/VDC @ 1A)
Selectable NO/NC
F: 32˚ to 140˚
C: 0˚ to 60˚
F: -40˚ to 140˚
C: -40˚ to 60˚
150 psi (10 bar) @ 25˚
C., derated @ 1.667
psi (.113 bar) per ˚C.
above 25˚ C.
NEMA 4X (IP65)
TDS1: PP-Ryton®
TDS2: PVDF Kynar®
TDS1: PP
TDS2: PFA Teflon®
4-conductor, #22 AWG
(shielded)
10' (3m)
3/4" NPT
General purpose
EN 50082-2 immunity
EN 55011 emission
EN 61010-1 safety

Common Specifications:

175

150

125

100

075

050

025

000

00

20

40

60

80

100

Acceptable

Range

Unacceptable

Range

Temperature/Pressure Derating

Operating Pressure (psi)

Temperature (C¡)

PVDF PP

0.7"

(19mm)

2.8"

(71mm)

2.1"

(54mm)

4.5"

(114mm)

3/4" NPT

3/4" NPT

8’ Cable

(2.5m)

1.3"

(32mm)

0.7"

(19mm)

8’ Cable

(2.5m)

3.0"

(76mm)

0.7"

(19mm)

3/4" NPT

3/4" NPT

Thermal Dispersion Ultrasonic Level Switch, LU10 Series

* all dimensions are Nominal

1000

100

10

1

0.1

0.01

.01 .04 .1 .2 1 3 10

6"
4"
3"
2"
1-1/2"
1"
3/4"

1/2"

12" 10" 8"

TDS Series Volume vs Velocity

Flow Rate (gpm)

Velocity (fps)

Set Points:

The TDS liquid flow switch set point is factory calibrated to 0.2
fps. To convert feet/sec to GPM, please refer to the chart
below.