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CLARK SOLUTIONS
DS01 Miniature Variable Area Flowmeter and Switch
DS01 Miniature Variable Area Flowmeter and Switch
DESCRIPTION
The flow meter and switch model DS01 works according to a modified variable area principle. The float is guided in a cylindrical measuring glass by means of a spring. The flowing medium moves the float in the flow direction. 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:
DS01.1: 230 psi / 16 bar
DS01.2 / DS01.3 / DS01.4: 145 psi / 10 bar
Pressure Drop:
DS01.1: 0.29-2.9 psi / 0.02-0.2 bar
DS01.2: 0.29-4.35 psi / 0.02-0.3 bar
DS01.3 / DS01.4: 0.29-5.8 psi / 0.02-0.4 bar
Max Temperature: 212°F/100°C (optionally 320°F/160°C) for liquids, 194°F/90°C for gases
Materials:
Measuring Glass: Duran 50
Housing - anodized aluminum
Connections - Brass or Stainless
O-rings - Buna, (optionally: Viton, EPDM)
Electrical Connection: - plug acc. to DIN 43650
(optionally: 1 m cable connection for DS01.1,
N/O only)
Accuracy - ±10% 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
Universal Mounting Position
High Switching Accuracy
Very Small Switch Hysteresis
APPLICATION
The variable area flow meter and switch model DS01 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.
SWITCHING HYSTERESIS
By careful selection of the Reed contacts, the switching hysteresis could be reduced to only
0.02" - 0.06"/0.5 - 1.5 mm float movement
MEASURING RANGES
Water: 0.08 - 0.95 GPH ... 16 - 40 GPM
5 - 60 ml/min ... 60 -150 l/min
Air: 0.4 - 2.75 SCFH ... 7.0 - 22.0 SCFM
0.2 -1.3 Nl/min ... 200 - 625 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 |
DS01.1 |
DS01.2 |
DS01.3 / DS01.4 / DS01.5 |
| N/O |
200 V, 1A, 20VA |
230V, 3A, 60 VA |
250 V, 3A 100 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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| Model |
Mounting dimensions in inch / mm |
Weight
(lbs / g) |
| SW |
D |
B |
NPT / G |
T |
L |
| DS01.1 |
0.67 / 17 |
0.79 / 20 |
1.93 / 49 |
1/4 |
0.39 / 10 |
3.54 / 90 |
0.31 / 140 |
| DS01.2 |
1.06 / 27 |
1.26 / 32 |
2.09 / 53 |
1/2 |
0.55 / 14 |
4.89 / 114 |
0.66 / 300 |
| DS01.3 |
1.61 / 41 |
1.97 / 50 |
3.03 / 77 |
3/4 |
0.67 / 17 |
5.47 / 139 |
1.98 / 900 |
| DS01.4 |
1.61 / 41 |
1.97 / 50 |
3.03 / 77 |
1 |
0.67 / 17 |
6.22 / 158 |
1.98 / 900 |
| DS01.5 |
1.61 / 41 |
1.97 / 50 |
3.03 / 77 |
1-1/4 |
0.67 / 17 |
6.54 / 166 |
2.03 / 920 |
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ORDERING INFORMATION
ORDER NUMBER EXAMPLE: DS01. 1. 1. 1. W13. 1. 1. 0
Miniature Variable Area Flowmeter 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 |
| DS01.1 Only |
DS01.2 Only |
DS01.3, DS01.4 and DS01.5 |
DS01.4 or DS01.5 |
| Water |
Air |
Water |
Air |
Water |
Air |
Water |
| DS01 |
1N=1/4" NPTF |
1=brass, spring of st. steel 304/1.4310 |
1=water |
WU101=0.08-0.95 GPH |
LU1001=0.4-2.75 SCFH |
WU205=1.6-8 GPH |
LU2012=6,5-25,0 SCFH |
WU3030=2.1-8.0 GPM |
LU30080=48-170 SCFH |
WU3150=16-40 GPM |
1=1 contact |
1=N/O |
| 2=air (14.7 psia / 1.013 bar abs. & 68°F/20 °C) |
WU102=0.4-2.0 GPH |
LU1002=1.05-4.25 SCFH |
WU21=3.2-16 GPH |
LU2030=15-64 SCFH |
WU3045=4.0-12.0 GPM |
LU30130=105-275 SCFH |
W3150=60-150 l/min |
2=2 contacts |
2=SPDT |
| 2N=1/2" NPTF |
WU106=1.6-9.5 GPH |
LU1003=1.7-6.4 SCFH |
WU22=0.1-0.4 GPM |
LU2040=25-85 SCFH |
WU3090=8.0-24.0 GPM |
LU30420=4.6-14.8 SCFM |
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3S=Ex-N/O (EEx m II T6), DS01.3, DS01.4, DS01.5 only |
| 2=all stainless steel 316 TI/1.4571 |
WU11=3-19 GPH |
LU1005=3.5-10.5 SCFH |
WU24=0.25-1.0 GPM |
LU2125=1.0-4.4 SCFM |
W3030=8-30 l/min |
LU30625=7.0-22.0 SCFM |
| 3N=3/4" NPTF |
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WU12=0.1-0.5 GPM |
LU1008=4.5-17.0 SCFH |
WU28=0.55-2.0 GPM |
LU2200=1.8-7.0 SCFM |
W3045=15-45 l/min |
L30080=22.5-80 Nl/min |
| WU13=0.13-0.8 GPM |
LU1012=6.5-25.0 SCFH |
WU215=1.1-4.0 GPM |
LU2420=3.5-14.8 SCFM |
W3090=30-90 l/min |
L30130=50-130 Nl/min |
3U=Ex-SPDT (EEx m II T6), DS01.3, DS01.4, DS01.5 only |
| 4N=1" NPTF |
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WU15=0.25-1.3 GPM |
LU1014=7.5-29.5 SCFH |
WU220=1.5-5.5 GPM |
LU2480=4.2-17 SCFM |
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L30420=130-420 Nl/min |
| W101=5-60 ml/min |
LU1020=12-42 SCFH |
WU228=1.5-7.5 GPM |
L2012=3-12 Nl/min |
L30625=200-625 Nl/min |
| 5N=1-1/4" NPTF |
W102=20-140 ml/min |
LU1024=15-50 SCFH |
W205=0.1-0.5 l/min |
L2030=7-30 Nl/min |
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| W106=0.1-0.6 l/min |
LU1035=21-74 SCFH |
W21=0.2-1 l/min |
L2040=12-40 Nl/min |
| 1=G 1/4 female |
W11=0.2-1.2 l/min |
LU1042=21-89 SCFH |
W22=0.4-1.6 l/min |
L2125=28-125 Nl/min |
| W12=0.4-2 l/min |
L1001=0.2 -1.3 Nl/min |
W24=1-4 l/min |
L2200=50-200 Nl/min |
| 2=G 1/2 female |
W13=0.5-3 l/min |
L1002=0.5-2.0 Nl/min |
W28=2-8 l/min |
L2420=100-420 Nl/min |
| W15=1.0-5 l/min |
L1003=0.8-3 Nl/min |
W215=4-15 l/min |
L2480=120-480 Nl/min |
| 3=G 3/4 female |
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L1005=1.5-5.0 Nl/min |
W220=5-22 l/min |
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| L1008=2-8 Nl/min |
W228=6-28 l/min |
| 4=G 1 female |
L1012=3-12 Nl/min |
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| L1014=3.5-14 Nl/min |
| 5=G 1-1/4 female |
L1020=5.5-20 Nl/min |
| L1024=7-24 Nl/min |
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L1035=10-35 Nl/min |
| L1042=10-42 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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