Kobold KSM Series User manual

KOBOLD KSM FLOWMETER
User Instructions
KSM_manual_08-10
USA
1801 Parkway View Drive
Pittsburgh, PA 15205
PH 412-788-2830
Canada
9A Aviation
Point Claire, QC H9R 4Z2
PH 514-428-8090
www.koboldusa.com

Table of Contents
1.0 General ............................................................................................. 1
2.0 Specifications ................................................................................... 1
3.0 Installation instructions...................................................................... 4
3.1 Mounting ................................................................................ 4
4.0 Operation .......................................................................................... 5
4.1 Reading the Flow Rate .......................................................... 5
4.2 Adjusting the Setpoints; KSM -5000/6000 ............................. 5
4.3 Operating the Setpoints; KSM -5000/6000 ............................. 5
5.0 Maintenance ...................................................................................... 6
6.0 Arrival of Damaged Equipment .......................................................... 6
7.0 Need Help With Your KSM ................................................................. 6
List of Diagrams
Diagram 2.3 Switch Wiring Schematic ......................................... 2
Diagram 2.4 Dimensions & Pressure Loss .................................... 3
List of Tables
Table 2.1 Technical Data ............................................................... 1
Table 2.2 Material construction ..................................................... 2
Table 2.5 Reed Contacts - Technical Data ................................... 4

1KSM
FM Rev 08/10
KOBOLD KSM FLOWMETER
User Instructions
CAUTION: For safety reasons, please read the cautionary information located at
the end of the manual, before attempting installation.
1.0 General
The KOBOLD KSM flowmeter is a high volume flow measuring device, intended for
applications in which the corrosion resistance of synthetic materials (plastics) is required.
The KSM operates on the principle of the variable area flowmeter (float in a conical tube or
rotameter).
The KSM may be outfitted with a setpoint switch (reed type - 1 or 2 pc.) to allow control of
external electronics by triggering upon flow rate changes.
2.0 Specifications
Table 2.1; Technical Data
Operating Principle: Variable area
Dimensions: See Diagram 2.4
Display: Directreading, calibrated for
Water or Air at standard
conditions (20°C, 0 PSIG Outlet)
Range: See Diagram 2.4
Operating Temperature: 32° F to 140° F
Maximum Internal Pressure: 145 PSIG

KSM 2
FM Rev 08/10
Table 2.2; Materials of Construction
Body: Trogamid-T or Polysulfone
Float: KSM- X001 to PVDF
KSM-X300
KSM-X600 PVC
Float Stops: PVDF
O-Rings: EPDM
End Fittings: PVC
Diagram 2.3: Switch Wiring Schematic

3KSM
FM Rev 08/10
Diagram 2.4; Dimensions & Pressure Loss

KSM 4
FM Rev 08/10
Table 2.5; Reed Contact - Technical Data
Maximum Voltage: 230 VAC
Maximum Current: 0.5 A
Maximum Power: 10 W /12 VA
Switch Hysteresis: 3-12 mm
Maximum Ambient Temperature: 32° F to 130° F
3.0 Installation Instructions
CAUTION: For safety reasons, please read the cautionary information located at the
end of the manual, before attempting installation.
NOTE: Before installation, remove any protective netting surrounding the float
within the metering tube and discard. This netting is for shipping purposes only.
3.1 - Mounting
The KSM is supplied with PVC end connectors and PVC cap nuts as standard. To install the
instrument, simply:
1. Remove cap nuts and end fittings from your KSM.
2. Place cap nut over pipe to which you wish to connect.
3. Per manufacturer's instructions, use a PVC adhesive/solvent to glue fittings in
place and let cure.
4. Fasten connectors to KSM with PVC nuts. Take care not to overtighten the nuts.
If necessary, use a strap wrench on the nuts. Do NOT use a pipe wrench, pliers, or
any other sharp instrument on the fittings, as this may compromise the strength,
and eventual safety, of the instrument.
Alternately, the KSM can be ordered with an optional NPT threaded fittings; alter the
installation procedure accordingly. Use an appropriate thread sealant.
NOTE: The KSM must be installed vertically (long axis), with the inlet at the bottom.

5KSM
FM Rev 08/10
4.0 Operation
We recommend that, if possible, the medium be introduced to the instrument in gradually
increasing amounts. This procedure serves two basic functions:
1. It prevents oscillation of the float upon sudden introduction of media
(particularlygases).
2. It prevents possible damage to the instrument caused by pressure surges (as
described in the cautionary section).
4.1 - Reading the Flow Rate
Flow rates measured by float type devices are typically read at the largest float diameter.
In the case of the KSM, this is the top edge of the float.
4.2 - Adjusting the Setpoint; KSM...-5000/6000 series
To adjust a setpoint:
1. Loosen the holding screw found on the setpoint indicator body, near the
V-groove.
2. Slide the switch to the desired setpoint value.
3. Tighten the holding screw, taking care not to overtighten.
4. Verify desired operation with media flowing and adjust if necessary.
4.3 - Operating the Setpoints; KSM...-5000/6000 series
Typical reed switch operation is as follows:
The setpoint switch is actuated by the motion of the magnet-containing float past the
switch position. The behavior of the switch is bistable - that is, the switch toggles from
one state to the other whenever the float passes, and remains in that state until the float
again passes back in the reverse direction. Since a reed switch is a switch in the purest
sense, external electronics may be driven directly through it, provided that the electrical
current/power loads are not demanding or excessive. (See Table 2.4 for reed switch per-
formance data.)
Should switching of currents or voltages in excess of the abilities of the reed switch be
required, a suitable isolation relay must be installed.

KSM 6
FM Rev 08/10
5.0 Maintenance
The major enemy of float-type flowmeters is dirt. We recommend that clean or filtered
media only, be passed through the device. If using the setpoint switch, it is particularly
important to guard from contamination by ferritic (metal) materials. To protect from
these, we suggest the installation of a magnetic filter, such as a KOBOLD MFR.., or
equivalent.
6.0 Arrival of Damaged Equipment
Your instrument was fully inspected prior to shipment and found to be defect-free. If
damage is visible on the unit, we advise that you carefully inspect the packing in which it
was delivered. If damage is visible, notify your local carrier at once, since the carrier is
liable for a replacement under these circumstances. If your claim is refused, please
contact KOBOLD Instruments for further advisement.
7.0 Need help with your KSM?
Call one of our friendly engineers at 412-788-2830.