Kobold DON -2/4, Operating Instructions Manual

Page: 7 / 65

DON
DON K36/1222 page 7
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of the
delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:

Oval Gear Flow Meter model: DON

Calibration Certificate
Each DON volume counter has been calibrated to function with mineral oil, which
means the remainder of the calibration oil still remains in the device.
The oil used is:
for measurement ranges x04/x05 for high viscosities: SHELL Morlina 10
for measurement ranges x10 to x60: EXXSOL D120
4. Regulation Use
The oval gear meter is a precise positive displacement flowmeter incorporating a
pair of oval geared rotors. These meters are capable of measuring the flow of a
broad range of clean liquids.
Stainless Steel flowmeters are suited to most water-based products and chemicals
and aluminium meters are suitable for fuels, fuel oils, & lubricating liquids. It is
important to ensure that the medium to be measured is compatible with the
materials used in the instrument. (See section 10 “Technical Data”) It is also
imperative to comply with the maximum permissible operating parameters
specified in the “Technical Data” section.
The flowmeter is available as a measurement transducer with pulse output or with
other forms of evaluation electronics. The operation of the offered electronics (Zx,
xA or ZE, ZB) is described in the separate operating instructions ZOK- (Ex) or ZOE.
These flowmeters DON can be installed within hazardous areas when ordered with
optional Exd approval, or by using the reed switch pulse output in Intrinsically Safe
loops or installing Intrinsically Safe certified Instruments.
Any use of the oval gear flow meter model: DON, which exceeds the
manufacturer’s specification, may invalidate its warranty. Therefore, any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk for
such usage.