INSTRUMENTATION > FLOW > DS05 Variable Area Flowmeter and Switch,
Mounting Independent
DS05 Flow Meter/Switch CLARK SOLUTIONS

DS05 Variable Area Flowmeter and Switch, Mounting Independent


DESCRIPTION
The flow meter and switch model DS05 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: 145 psi/10 bar
Pressure Drop: 0.15-11.6 psi/0.01-0.8 bar
Max Temperature: 212°F/100°C (320°F/160°C
  on request)
 Materials: Measuring Glass: Duran 50
                 Housing: anodized aluminum
                 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”

MOUNTING POSITION AND RELIABILITY
The built-in spring and the magnetic float guarantee an absolute reliability of the meter. This spring, which pushes the float back towards its zero position against the flow makes it possible to use the meter in any mounting position. The spring is artificially aged, thus eliminating the need for recalibration to the different mounting positions.
FEATURES

Any Mounting Position without Recalibration

Small Mounting Dimensions

Materials: Brass or Stainless Steel

High Switching Accuracy

Very Small Switch Hysteresis

Measuring Glass with Burnt-in Scale

APPLICATION
The variable area flow meter and switch model DS05 is used for measuring and monitoring the flow of low viscosity liquids, i.e., in cooling circuits of welding machines and laser systems, for pump monitoring, compressors and many other applications.

MEASURING RANGES
3.0-63 GPH …9.0-66 GPM water
0.2 - 4 l/min … 35 - 250 l/min water

MATERIALS
brass or stainless steel
CONTACTS
Function  
N/O: 250V, 3A, 100VA
SPDT:  250V, 1.5A, 30VA
*EX-N/O:  250V, 2A, 60 VA
*EX-SPDT:  250V, 1A, 30VA
*Per ATEX 100aEXII 2 G, EEx m II T6
DIMENSIONS:
Model  Mounting dimensions in inch / mm Weight
(lbs / g)
SW D B NPT / G T L
DS05.1.x.x.x 1.26/32 1.69/43 2.87/73 1/4" 0.55/14 5.20/132 1.38/625
DS05.2.x.x.x 1.26/32 1.69/43 2.87/73 1/2" 0.59/15 5.31/135 1.38/625
DS05.2.x.x.05 1.26/32 1.69/43 2.87/73 1/2" 0.59/15 6.42/163 1.43/650
DS05.3.x.x.06 1.26/32 1.69/43 2.87/73 3/4" 0.71/18 6.57/167 1.87/850
DS05.3.x.x.07 1.61/41 1.97/50 2.99/76 3/4" 0.71/18 5.98/152 2.20/1000
DS05.4.x.x.07 1.61/41 1.97/50 2.99/76 1" 0.75/19 6.14/156 2.20/1000
DS05.4.x.x.08/09 1.61/41 1.97/50 2.99/76 1" 0.75/19 7.48/190 2.20/1000
DS05.5.x.x.10 1.81/46 2.36/60 3.19/81 1-1/4" 0.83/21 8.27/210 3.08/1400
DS05.5.x.x.11 1.81/46 2.17/55 3.11/79 1-1/4" 0.83/21 8.74/222 3.08/1400
DS05 Diagram
Electrical connection
ORDERING INFORMATION
Order Number Example: DS05. 3. 1. 1. 06. 1. 1. 0
Variable Area Flowmeter and Switch, Mounting Independent
PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS
Model Connection Material Scale Measuring ranges (water) No. of contacts Contact function
DS05.1 and DS05.2 DS05.2 only DS05.3 only DS05.3 and DS05.4 DS05.4 only DS05.5 only
DS05 1N=1/4" NPT female 1=brass, spring of steel 1.4310 1=for water 01U=3.0-63 GPH 05AU=32-350 GPH 06U=40-710 GPH 07U=0.5-21 GPM 08U=1.6-29 GPM 09U=4-39.5 GPM 0=without contact 0=without contact
2N=1/2" NPT female   02U=8.0-95 GPH 05U=16-444 GPH 06=2-45 l/min 07AU=1.6-23.8 GPM 08=6-110 l/min 10U=8-58 GPM 1=1 contact 1=N/O
3N=3/4" NPT female 2=all st. steel 1.4571 03U=8.0-127 GPH 05A=2-22 l/min   07=2-80 l/min   11U=9-66 GPM 2=2 contacts 2X=SPDT for SPS application
4N=1" NPT female   04U=8.0-222 GPH 05=1-28 l/min 07A=6-90 l/min 09=15-150 l/min   3S=Ex-N/O (EEx m II T6)
5N=1 1/4" NPT female 01=0.2-4 l/min     10=30-220 l/min 3U=Ex-SPDT (EEx m II T6)
1=G 1/4 female 02=0.5-6 l/min 11=35-250 l/min  
2=G 1/2 female 03=0.5-8 l/min  
3=G 3/4 female 04=0.5-14 l/min
4=G 1 female  
5=G 1 1/4 female
 
Options
0 = without
1 = please indicate
This product sold by PKP Process Instruments, Inc., a joint venture of Clark Solutions
and PKP Prozessmesstechnik GmbH.