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CLARK SOLUTIONS
DS02 Flow Meter/Switch
F.S. Ranges From 60ml to 150 l/min water, 2.2 to 650 l/min air
DESCRIPTION
The flow meter and switch model DS02 works according to a modified variable area principle. The float is guided in a cylindrical measuring tube by means of a slotted nozzle. The flowing medium moves the float in the flow direction. A reed contact is mounted outside the meter in a sealed housing. When the float reaches the position of the reed contact the switch will close. With higher flows the float moves further upward until it reached a built-in float stop, still keeping the switch closed. This ensures a bistable switch function at any time. The reed contact is adjustable over the full switching range of the meter.
SPECIFICATIONS
Max Pressure:
DS02.1 - 300 bar (4,350 PSIG)
DS02.2/3/4 - 250 bar (3,625 PSIG)
Pressure Drop:
DS02.1 - 0.02-0.2 bar (0.3-2.9 PSI)
DS02.2 - 0.02-0.3 bar (0.3-4.3 PSI)
DS02.3, DS02.4 - 0.02-0.4 bar
(0.3-5.8 PSI)
Max Temperature: 100°C
(160° optional)
Materials:
Housing:
Brass Version - nickel plated brass
Stainless Version - 316Ti SS
Electrical Connections - DIN 43650
plug
Accuracy - ±10% f.s.
Ranges:
Water - 5-60 ml/min to 60-150 l/min
Air - 0.6-2.2 l/min to 200-650 l/min
(at 1.013 bar absolute and 20°C)
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APPLICATION
The variable area flow meter and switch model DS02 is used for measuring and monitoring the flow of low viscosity liquids and gases, i.e., in cooling loops of welding machines and laser systems, for pump monitoring, compressors and many other applications.
By careful selection of the reed contacts the switch hysteresis can be reduced to only 0.5-1.5 mm float movement.
FEATURES
Small Mounting Dimensions
Brass or Stainless Steel Connections
Scales for Water and Air
High Switching Accuracy
Low Switching Hysteresis
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| CONTACTS |
| Function |
DS02.1 |
DS02.2 |
DS02.3 / DS02.4 |
| N/O |
200 V, 1A, 20VA |
220 V, 1A, 100 VA |
250 V, 3 A, 20 VA |
| SPDT |
200 V, 1A, 20VA |
250V, 1,5A, 50 VA |
250V,1,5 A,50 VA |
| *NO |
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250V, 2A, 60VA |
| *SPDT |
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250V, 1A, 30VA |
| *Per ATEX 100aEXII 2 G, EEx m II T6 |
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| DIMENSIONS |
| Model |
Dimensions in mm |
Weight (g) |
| SW |
D |
B |
G |
T |
L |
| DS02.1 |
17 |
17 |
47 |
1/4 NPT |
10 |
65 |
140 |
| DS02.2 |
27 |
31 |
52 |
1/2 NPT |
14 |
90 |
350 |
| DS02.3 |
41 |
47 |
72 |
3/4 NPT |
21 |
152 |
1100 |
| DS02.4 |
41 |
47 |
72 |
1.0 NPT |
17 |
130 |
1000 |
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ORDERING INFORMATION
Order Number Example DS021110611
Miniature variable area flow switch |
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| PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS |
| Connection: |
1N = 1/4 G* |
2N = 1/2 G* |
3N = 3/4 G* |
4N = 1 G* |
| Material: |
1 = brass with 301 stainless steel spring |
2 = all 316 stainless steel |
| Scale: |
1 = for water |
2 = for air |
| Measuring Ranges: |
Water |
Air |
| DS02.1: |
W101 = 5-60 ml/min |
L1002= 0.6-2.2 slpm |
| W102 = 40-130 ml/min |
L1006= 1.7-6.0 slpm |
| W106= 0.1-0.6 l/min |
L1008= 2.5-8 slpm |
| W11= 0.2-1.2 l/min |
L1012= 3.0-12 slpm |
| W12= 0.4-2.0 l/min |
L1022= 3.0-22 slpm |
| W13= 0.5-3.0 l/min |
L1024= 7.0-24.0 slpm |
| W15= 1.0-5.0 l/min |
L1034= 12-34 slpm |
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L1056= 16-56 slpm |
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L1080= 20-80 slpm |
| DS02.2 |
W202= 0.02-0.2 l/min |
L2012= 3.0-12.0 slpm |
| W206= 0.2-0.6 l/min |
L2030= 7.0-30 slpm |
| W21= 0.4-1.8 l/min |
L2040= 12-40 slpm |
| W23= 0.8-3.2 l/min |
L2125= 28-125 slpm |
| W27= 2.0-7.0 l/min |
L2200= 50-200 slpm |
| W213= 3.0-13 l/min |
L2420= 100-420 slpm |
| W220= 4.0-20 l/min |
L2480= 120-480 slpm |
| W230= 8.0-30 l/min |
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| DS02.3, or DS02.4 |
W3030= 11-30 l/min |
L30180= 60-180 slpm |
| W3045= 15-45 l/min |
L30300= 100-300 slpm |
| W3060= 20-60 l/min |
L30650= 200-650 slpm |
| W3090= 30-90 l/min |
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| DS02.4 Only |
W3150= 60-150 l/min |
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| No. of contacts: |
1 = 1 contact |
2 = 2 contacts |
| Contact function: |
1 = N/O |
2 = SPDT |
3S= Ex-N/O (EEX m II T6), DS02.3, DS02.4 only |
3U= Ex-SPDT (EEX m II T6), DS02.3, DS02.4 only |
| Options: |
0 = Without |
1 = Please List |
| *Connections are a straight thread as a retaining ring is threaded to the base of the connection as part of the flowmeter assembly process. Contact Clark to discuss your connection requirements and we will recommend fittings or adaptors. |
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For assistance call 978-568-3400
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