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CLARK SOLUTIONS
DS25 Flowmeter, Alarm & Analog Output (Including Totalizer)
F.S. Ranges 0.01-570 gpm Liquid, 0.44-1100 scfm Gas
DESCRIPTION
Model DS25 flowmeters work according to the proven variable area principle. A float is guided in a conical measuring tube and is nearly independent of the viscosity of the medium. The flowing medium moves the float in the flow direction. An externally mounted pointer indicator is magnetically coupled to the float and thus, following the float position, indicates the flow rate on a scale.
This indicator assembly is equipped with a scale calibrated to the operating conditions in the system and additionally may contain alarm contacts and analog output including totalizer.
The variable area flowmeter model DS25 is used for measuring and monitoring the flow of all kinds of liquids or gases. By using only stainless steel AISI 316 Ti for the wetted parts, the meter is especially suited for aggressive media or for use in food and drink applications (with Tri-Clamp or other hygienic process connections).
FEATURES
- For Liquids & Gases
- Pressure to 320 bar (40 & 100 bar standard)
- Temperature to 400°C
- AISI 316 Ti Stainless Steel Construction
- Individually Calibrated
- Alarm & Analog Outputs Available
INDICATOR
The indicator part of the DS25 consists of an aluminum or polyamide housing with a pointer assembly magnetically coupled to the float.
The scale may be calibrated in flow units or in percent. Additionally, transmitters including totalizer and alarm contacts may be mounted in the indicator housing.
Ambient Temperature:
PA housing: -25°C ... +100°C
AL housing: -25°C ... +130°C
(for higher or lower operating temperatures
use option "temperature isolation (DS25.A)")
OPTIONS
Temperature isolation (DS25.A):
For media temperatures outside the limits given
in the technical specifications for the indicator
assembly the measuring tube and the indicator
assembly may be temperature isolated by
mounting the indicator at a distance of 60 mm
from the measuring tube. This ensures that the
unit may be operated at media temperatures as
high as stated in the specifications for the
measuring tube.
Damping (DS25.D):
Float damping is recommended for gas or steam
applications to prevent erratic up and down
movement of the float.
Oxygen Applications: For use with oxygen the meters
may be supplied oil and grease-free.
Certificates: On request
Tags: Stainless steel tags with customer specified text
are optionally available.
PNEUMATIC TRANSMITTER
on request
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SPECIFICATIONS
TECHNICAL SPECIFICATIONS (MEASURING TUBE)
Measurable Media: liquids and gases
Ranges: see Tables 2 and 3
Turndown Ratio: 10:1
Accuracy:
DS25.1: 1.6% f.s.
DS25.2: 2.5% f.s.
Process Connections: see Table 1
Max. Pressure: see Table 1
Media Temperature:
DS25.1: -180°C ... +400°C
DS25.2: -80°C ... +130°C
(the actual operating temperature also
depends on the max. permissible temperatures
for the indicator and the options utilized
in the unit)
Materials:
DS25.1: all wetted parts stainless steel AISI 316 Ti
DS25.2: all wetted parts stainless steel AISI 316 Ti
with PTFE coating
Mounting: Vertical
Flow Direction: from bottom to top
Mounting Length: see Table 1
Straight Pipe Run Recommended:
1/2" to 2 1/2": none
3" through 4": min 5 x diameter upstream
Electrical Protection: IP65
ALARM CONTACTS
Model: inductive proximity switch, SJ3.5-N per DIN
19234 (NAMUR); or SPDT Relay
Rated Voltage: 8 VDC
Output Signal: <= 1 mA = in alarm state; >=3 mA = not in
alarm state
Ambient Temperature: -25°C ... +100°C (for higher or lower
operating temperatures use option "temperature
isolation (DS25.A)")
Explosion Protection: ATEX100 EEx ia IIC T6
Recommended Accessories: KF Transformer isolated barrier
with relay output (Converts NAMUR output to
SPDT relay)
TRANSMITTER
Output Signal: 4 ... 20 mA
Indication: LCD display, 8 digits (programmable for indication
of flow rate or as non-resettable totalizer)
Supply Voltage: see ordering information
Max. Load: 4-wire: >= 500 Ohm
2-wire: (Supply Voltage-13.5 V) ÷ 20 mA
Operating Temperature: 0 ... 100°C (for higher or lower
operating temperatures use option "temperature
isolation (DS25.A)")
Electrical Connection: Cable Gland or PG11
INTRINSICALLY SAFE TRANSMITTER
Technical specifications same as standard unit, except:
Output Signal: 4 ... 20 mA, 2-wire
Operating Temperature: -25°C ... +70°C (for higher
or lower operating temperatures use option
"temperature isolation (DS25.A)")
Explosion Protection: ATX100 EEx ia IIC T6
Recommended Accessories: intrinsically safe power
supply (see "Options")
TRANSFORMER ISOLATED BARRIER W/RELAY OUTPUTS
Per DIN 19234 (NAMUR) |
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| Model |
Power |
No. Channels |
Contact Rating |
| KFA5-SR2-EX2.W |
103.5-126 VAC |
2 |
AC:253V/2 |
DC: 40V/2A |
| KFD5-SR2-EX2.W |
20-30 VDC |
2 |
AC:253V/2A |
DC: 40V/2A |
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POWER SUPPLY FOR INTRINSICALLY SAFE TRANSMITTER
Output Signal: 0 / 4...20 mA, galvanically separated
Supply Voltage:
SE11.2: 24 VAC / DC
Max. Load: 750 Ohm
Control Circuit: intrinsically safe [EEx ia] IIC |
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STEAM JACKETS
Steam jackets are used to keep the media in the measuring tube at a required temperature. Consult us for available configurations. |
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| Table 1-Connection Chart |
| Nominal Bore mm(in.) |
Description |
Pressure Rating |
Tube No. |
Connection Code |
Length L(mm) |
| 15 (1/2") |
Flanges ANSI 1/2" |
150 lbs. |
1 |
102 |
250 |
| Flanges ANSI 1/2" |
300 lbs. |
1 |
103 |
250 |
| 1/2" NPT Female |
580 PSI |
1 |
105 |
295 |
| Flanges ANSI 1/2" |
150 lbs. |
2 |
207 |
250 |
| Flanges ANSI 1/2" |
300 lbs. |
2 |
208 |
250 |
| 1/2" NPT Female |
580 PSI |
2 |
210 |
295 |
| 20 (3/4") |
Flanges ANSI 3/4" |
150 lbs. |
1 |
112 |
250 |
| Flanges ANSI 3/4" |
300 lbs. |
1 |
113 |
250 |
| 3/4" NPT Female |
580 PSI |
1 |
115 |
295 |
| Flanges ANSI 3/4" |
150 lbs. |
2 |
217 |
250 |
| Flanges ANSI 3/4" |
300 lbs. |
2 |
218 |
250 |
| 3/4" NPT Female |
580 PSI |
2 |
220 |
295 |
| 25 (1") |
Flanges ANSI 1" |
150 lbs. |
1 |
122 |
250 |
| Flanges ANSI 1" |
300 lbs. |
1 |
123 |
250 |
| Tri-Clamp DN25 / 1" |
150 PSI |
1 |
127 |
250 |
| Flanges ANSI 1" |
150 lbs. |
2 |
229 |
250 |
| Flanges ANSI 1" |
300 lbs. |
2 |
230 |
250 |
| Tri-Clamp DN25 / 1" |
150 PSI |
2 |
234 |
250 |
| Flanges ANSI 1" |
150 lbs. |
3 |
336 |
250 |
| Flanges ANSI 1" |
300 lbs. |
3 |
337 |
250 |
| 1" NPT Female |
580 PSI |
3 |
339 |
310 |
| 32 (1 1/4") |
Tri-Clamp DN32 |
150 PSI |
1 |
141 |
250 |
| Flanges ANSI 1 1/4" |
150 lbs. |
2 |
243 |
250 |
| Flanges ANSI 1 1/4" |
300 lbs. |
2 |
244 |
250 |
| Tri-Clamp DN32 |
150 PSI |
2 |
245 |
250 |
| Flanges ANSI 1 1/4" |
150 lbs. |
3 |
347 |
250 |
| Flanges ANSI 1 1/4" |
300 lbs. |
3 |
348 |
250 |
| 1 1/4" NPT Female |
580 PSI |
3 |
350 |
310 |
| 40 (1 1/2") |
Tri-Clamp DN40 / 1 1/2" |
150 PSI |
1 |
151 |
250 |
| Tri-Clamp DN40 / 1 1/2" |
150 PSI |
2 |
252 |
250 |
| Flanges ANSI 1 1/2" |
150 lbs. |
3 |
354 |
250 |
| Flanges ANSI 1 1/2" |
300 lbs. |
3 |
355 |
250 |
| 50 (2") |
Flanges ANSI 2" |
150 lbs. |
3 |
357 |
250 |
| Flanges ANSI 2" |
300 lbs. |
3 |
358 |
250 |
| Tri-Clamp DN50 / 2" |
150 PSI |
3 |
360 |
250 |
| Flanges ANSI 2" |
150 lbs. |
4 |
462 |
250 |
| Flanges ANSI 2" |
300 lbs. |
4 |
463 |
250 |
| 2" NPT Female |
580 PSI |
4 |
465 |
325 |
| 2" NPT Female |
580 PSI |
4 |
468 |
325 |
| 80 (3") |
Tri-Clamp DN80 / 3" |
150 PSI |
4 |
470 |
300 |
| Flanges ANSI 3" |
150 lbs. |
5 |
572 |
250 |
| Flanges ANSI 3" |
300 lbs. |
5 |
573 |
260 |
| 100 (4") |
Tri-Clamp DN100 / 4" |
150 PSI |
5 |
575 |
250 |
| Flanges ANSI 4" |
150 lbs. |
6 |
678 |
250 |
| Flanges ANSI 4" |
300 lbs. |
6 |
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| 125 (5") |
Flanges ANSI 5" |
150 lbs. |
6 |
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| Flanges ANSI 5" |
300 lbs. |
6 |
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| 150 (6") |
Flanges ANSI 6" |
150 lbs. |
6 |
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| Flanges ANSI 6" |
300 lbs. |
6 |
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| *not available with "steam jacket" option |
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Table 2 - Range Codes
Model DS25.1, Stainless Steel Version |
| Water @20°C |
| Tube No. |
Range Code |
Range (g/m) |
Pressure Drop (PSI) |
Max Viscosity (Centipoise)
w/o Recalibration |
| 1 |
101 |
0.001-0.01 |
0.58 |
2,9 |
| 102 |
0.017-0.176 |
0.58 |
4,5 |
| 103 |
0.027-0.277 |
0.58 |
6,4 |
| 104 |
0.044-0.44 |
0.58 |
9,2 |
| 105 |
0.044-0.44 |
0.087 |
5,1 |
| 2 |
206 |
0.044-0.44 |
0.087 |
5,1 |
| 207 |
0.07-0.7 |
0.218 |
8,2 |
| 208 |
0.07-0.7 |
0.087 |
7,1 |
| 209 |
0.1-1.1 |
0.58 |
13 |
| 210 |
0.1-1.1 |
0.087 |
8,8 |
| 211 |
0.17-1.76 |
0.58 |
18 |
| 212 |
0.17-1.76 |
0.087 |
10 |
| 213 |
0.27-2.77 |
0.58 |
23 |
| 214 |
0.27-2.77 |
0.218 |
17 |
| 215 |
0.44-4.4 |
0.58 |
27 |
| 216 |
0.44-4.4 |
0.21 |
19 |
| 217 |
0.7-7.0 |
0.58 |
31 |
| 218 |
1-10.0 |
0.653 |
- |
| 3 |
319 |
0.44-4.4 |
0.102 |
17 |
| 320 |
0.7-7.0 |
0.102 |
20 |
| 321 |
1.1-11.0 |
0.595 |
44 |
| 322 |
1.1-11.0 |
0.232 |
16 |
| 323 |
1.7-17.0 |
0.595 |
50 |
| 324 |
2.6-26.0 |
0.604 |
- |
| 4 |
425 |
1.1-11.0 |
0.116 |
29 |
| 426 |
1.7-17.0 |
0.116 |
33 |
| 427 |
2.2-27.0 |
0.682 |
72 |
| 428 |
2.7-27.0 |
0.116 |
37 |
| 429 |
4.4-44.0 |
0.682 |
82 |
| 430 |
4.4-44.0 |
0.276 |
58 |
| 431 |
7.0-70.0 |
0.682 |
92 |
| 432 |
10-100 |
0.914 |
- |
| 5 |
533 |
11-110 |
0.87 |
- |
| 534 |
17-170 |
0.87 |
- |
| 535 |
26-260 |
0.87 |
- |
| 6 |
638 |
44-440 |
1.02 |
- |
| Air/Gases @20°C, 1.013 bar abs. |
| Tube No. |
Range Code |
Range (SCFM) |
Pressure Drop (PSI) |
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| 1 |
101 |
0.044-0.44 |
0.653 |
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| 102 |
0.07-0.7 |
0.653 |
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| 103 |
0.1-1.0 |
0.653 |
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| 104 |
0.17-1.77 |
0.653 |
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| 2 |
206 |
0.32-3.2 |
0.29 |
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| 207 |
0.23-2.3 |
0.16 |
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| 208 |
0.38-3.8 |
0.16 |
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| 209 |
0.44-4.4 |
0.653 |
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| 210 |
0.59-5.9 |
0.16 |
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| 211 |
0.76-7.6 |
0.653 |
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| 212 |
0.94-9.4 |
0.16 |
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| 213 |
1.2-12 |
0.653 |
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| 214 |
1.5-15 |
0.16 |
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| 215 |
1.8-18 |
0.653 |
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| 216 |
2-20 |
0.29 |
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| 3 |
319 |
2.3-23 |
0.174 |
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| 320 |
2.9-29 |
0.319 |
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| 321 |
4.1-41 |
0.194 |
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| 322 |
5.3-53 |
0.319 |
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| 323 |
7.7-77 |
0.682 |
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| 4 |
425 |
5.9-59 |
0.203 |
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| 426 |
7.7-77 |
0.363 |
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| 427 |
9.4-94 |
0.203 |
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| 428 |
12-118 |
0.363 |
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| 429 |
12-118 |
0.783 |
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| 430 |
17-170 |
0.203 |
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| 431 |
21-210 |
0.363 |
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| 432 |
29-290 |
0.783 |
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| 5 |
533 |
29-290 |
0.435 |
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| 534 |
44-440 |
0.943 |
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| 535 |
50-500 |
0.435 |
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| 536 |
70-700 |
0.943 |
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| 537 |
110-1100 |
0.943 |
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Table 3 - Range Codes
Model DS25.2, PTFE Coated |
| Water @20°C |
| Tube No. |
Range Code |
Range (g/m) |
Pressure Drop (PSI) |
| 2 |
250 |
.044-0.44 |
0.232 |
| 251 |
0.07-0.7 |
0.232 |
| 252 |
0.1-1.1 |
0.232 |
| 253 |
0.17-1.76 |
0.232 |
| 254 |
0.27-2.77 |
0.232 |
| 255 |
0.44-4.4 |
0.261 |
| 3 |
356 |
0.7-7.0 |
0.290 |
| 357 |
1.1-11.0 |
0.290 |
| 358 |
1.7-17.0 |
0.319 |
| 4 |
459 |
1.7-17.0 |
0.290 |
| 460 |
2.2-27.0 |
0.290 |
| 461 |
4.4-44.0 |
0.290 |
| 462 |
7.0-70.0 |
0.319 |
| 5 |
563 |
7.0-70.0 |
0.363 |
| 564 |
11-110 |
0.363 |
| 565 |
17-170 |
0.363 |
| 6 |
666 |
28-280 |
0.435 |
| Air/Gases @20°C, 1.013 bar abs. |
| Tube No. |
Range Code |
Range (SCFM) |
Pressure Drop (PSI) |
| 2 |
250 |
0.2-2.0 |
0.29 |
| 251 |
0.3-3.0 |
0.29 |
| 252 |
0.5-5.0 |
0.29 |
| 253 |
0.76-7.6 |
0.29 |
| 254 |
1.2-12 |
0.29 |
| 255 |
2-20 |
0.319 |
| 3 |
356 |
2.9-29 |
0.363 |
| 357 |
5-50 |
0.363 |
| 4 |
459 |
8-80 |
0.363 |
| 460 |
12-120 |
0.363 |
| 461 |
21-210 |
0.363 |
| 5 |
563 |
29-290 |
0.174 |
| 564 |
52-520 |
0.319 |
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| Meas. Tube |
H1(mm) |
H2(mm) |
Wt(kg) |
| 1 |
122 |
122 |
5 |
| 2 |
123 |
127 |
5 |
| 3 |
131 |
136 |
6.5 |
| 4 |
147 |
152 |
11 |
| 5 |
161 |
168 |
16 |
| 6 |
170 |
176 |
20 |
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ORDERING INFORMATION
Order Number ABCDEFGHIJ
Example: DS25-1105110410000CG |
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| PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS |
| A=Model |
B=Material Version |
C=Process Connection |
D=Medium |
E=Measuring Range |
F=Indicator Housing |
G=Alarm contacts |
H=Analog Output |
I=Supply Voltage |
J=Electrical Connection |
| DS25 |
1 = stainless steel |
101...678 = according to Table 1 |
1 = water / liquid |
101...666 = according to range code tables 2&3 |
1= Polyamide |
0= without |
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0= without |
00= without |
CG=Cable Gland |
| 2 = wetted parts PTFE coated |
999 = special connection |
2 = air/ gases |
999 =special range |
2= Aluminum |
1= 1 min contact |
1S= 1 min contact, SPDT, w/ SE01.3 |
1= transmitter |
02= 110 VAC, 4-20 mA, 4-wire |
PG11=PG11 |
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2= 1 max contact |
2S= 1 max. contact, SPDT, w/ SE01.3 |
2= transmitter, intrinsically safe |
03= 230 VAC, 4-20 mA, 4-wire |
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| 3= 1 min/1 max contact |
3S= 1 min/ 1 max contact, 2 xSPDT, w/ SE01.4 |
3= pneumatic transmitter |
06= 24 VAC, 4-20 mA, 4-wire |
| 4= 2 min contacts |
4S= 2 min. contacts, 2 xSPDT, w/SE01.4 |
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08= 24 VDC, 4-20 mA, 2-wire |
| 5= 2 max contacts |
5S= 2 max contacts, 2 xSPDT, w/ SE01.4 |
13= 3-15 psi |
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| Options |
| Please indicate in writing |
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| Further Ordering Information |
| Important: for complete identification of the meter the following information must be specified: |
| 1 |
Order no. according to table above |
| 2 |
Identify desired units of flow |
| 3 |
Identify medium |
| 4 |
Temperature (operational, max.) |
| 5 |
Pressure (operational, max.) |
| 6 |
Viscosity (for liquids only) |
| 7 |
Specific gravity of medium |
| 8 |
For gases only: reference conditions |
| 9 |
Any additional application specific information |
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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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