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CLARK SOLUTIONS
DS03 Variable Area Flowmeter and Switch
DESCRIPTION
The flow meter and switch model DS03 works according to a modified variable area principle. The float is guided in a cylindrical measuring glass. The upper edge of the float shows the momentary flow via a burnt-in scale on the measuring glass.
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 reaches 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.
TECHNICAL SPECIFICATIONS
Max Pressure: 145 psi/10 bar
Pressure Drop: 0.15-2.9 psi/0.01-0.2 bar
Max Temperature: 212°F/100°C
(320°F/160°C optionally) for liquids,
194°F/90°F for gases
Materials: Measuring Glass: Duran 50
Housing: anodized aluminium O-rings:
Buna, (optionally: Viton, EPDM)
Electrical Connections: plug acc. to DIN
43650 (optionally: 1 m cable
connection)
Accuracy: ±5% f.s.
Analog Output: see model DSxx-A in
section "accessory"
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FEATURES
Small Mounting Dimensions
Materials: Brass or Stainless Steel
Scales for Water and Air
High Switching Accuracy
Very Small Switch Hysteresis
Measuring Glass with Burnt-in Scale
APPLICATION
The variable area flow meter and switch model DS03 is used for measuring and monitoring the flow of low viscosity liquids and gases, i.e., in cooling circuits of welding machines and laser systems, for pump monitoring, compressors and many other applications.
MEASURING RANGES
Water: 1.6-23.8 GPH … 60 … 790 GPH
0.1-1.5 l/min … 4-50 l/min
Air: 6.5-63.5 SCFH … 7-56.5 SCFM
03-30 Nl/min … 200-1600 Nl/min
at 14.7 psia/1.013 bar abs. and 68°F/20°C
MATERIALS
brass or stainless steel |
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| CONTACTS |
| Function |
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| N/O: |
250 V, 3A, 100 VA |
| SPDT: |
250V, 1.5A, 50VA |
| *EX-N/O: |
250V, 2A, 60VA |
| *EX-SPDT: |
250V, 1A, 30VA |
| *Per ATEX 100aEXII 2 G, EEx m II T6 |
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| Model |
Mounting dimensions in inch / mm |
Weight lbs / g |
| SW |
D |
B |
NPT / G |
T |
L |
| DS03.1.x.x.x |
1.26/32 |
1.69/43 |
2.87/73 |
1/4 |
0.55/14 |
5.20/132 |
1.38/625 |
| DS03.2.x.x.x |
1.26/32 |
1.69/43 |
2.87/73 |
1/2 |
0.59/15 |
5.31/13 |
1.38/625 |
| DS03.2.x.x.05 |
1.26/32 |
1.69/43 |
2.87/73 |
1/2 |
0.59/15 |
6.42/163 |
1.43/650 |
| DS03.3.x.x.05 |
1.26/32 |
1.69/43 |
2.87/73 |
3/4 |
0.63/16 |
6.57/167 |
1.43/650 |
| DS03.3.x.x.06/07 |
1.61/41 |
1.97/50 |
2.99/76 |
3/4 |
0.71/18 |
6.46/164 |
2.21/1000 |
| DS03.4.x.x.06/07 |
1.61/41 |
1.97/50 |
2.99/76 |
1 |
0.75/19 |
7.24/184 |
2.21/1000 |
| DS03.4.x.x.08 |
1.61/41 |
1.97/50 |
2.99/76 |
1 |
0.79/20 |
7.87/200 |
2.43/1100 |
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ORDERING INFORMATION
Order Number Example: DS03. 3. 1. 1. WA06. 1. 1. 0
Miniature variable area flow meter and switch |
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| PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS |
| Model |
Connection |
Material |
Scale |
Measuring Ranges |
No. of Contacts |
Contact Function |
| DS03.1 and DS03.2 |
DS03.2 and DS03.3 |
DS03.3 and DS03.4 |
DS03.4 only: |
| Water |
Air |
Water |
Air |
Water |
Air |
Water |
| DS03 |
1N=1/4" NPT female |
1=brass |
1=for Water |
WU01=1.6-23.8 GPH |
LU01=6.5-63.5 SCFH |
WU05=32-285 GPH |
LU05=85-760 SCFH |
WU06=48-550 GPH |
LU06=2.1-24.7 SCFM |
LU08=7-56.5 SCFM |
0=without contact |
0=without contact |
| 2N=1/2" NPT female |
2=all st. steel 316 Ti / 1.4571 |
2=for air (at 14.7 psia/1.013 bar abs., 68°F/20°C) |
WU02=3.2-47.5 GPH |
LU02=13-127 SCFH |
WA05=2-18 l/min |
LA05=40-360 Nl/min |
WU07=60-790 GPH |
LU07=2,0-29,0 SCFM |
LA08=200-1600 Nl/min |
1=1 contact |
1=N/O |
| 3N=3/4" NPT female |
WU03=5.0-127 GPH |
LU03=13-340 SCFH |
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WA06=3-35 l/min |
LA06=60-700 Nl/min |
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2=2 contacts |
2=SPDT |
| 4N=1" NPT female |
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WU04=16-190 GPH |
LU04=42-510 SCFH |
WA07=4-50 l/min |
LA07=60-825 Nl/min |
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3S=Ex-N/O (EEx m II T6) |
| 1=G 1/4 female |
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WA01=0.1-1.5 l/min |
LA01=3-30 Nl/min |
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LA08=200-1600 Nl/min |
3U=Ex-SPDT (EEx m II T6) |
| 2=G 1/2 female |
WA02=0.2-3 l/min |
LA02=6-60 Nl/min |
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| 3=G 3/4 female |
WA03=0.3-8 l/min |
LA03=6-160 Nl/min |
| 4=G 1 female |
WA04=1-12 l/min |
LA04=20-220 Nl/min |
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| Options: |
| 0=without |
| 1=please indicate |
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This product sold by PKP Process Instruments, Inc., a joint venture of Clark Solutions
and PKP Prozessmesstechnik GmbH. |
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