Specifications - Wohler DC 17 Handbuch

1. Specifications

Wöhler DC 17 Pressure Computer
1. Specifications
1.1 Important information
Before using this instrument, carefully read and observe all notes contained in
these operating instructions.
Fundamentally, skilled personnel only should use the Wöhler pressure com-
puter DC 17 for the purpose that it is intended and within the specified data
range. No liability is accepted under any circumstances or guarantee given
for results determined in conjunction with this instrument nor for any damage
that may arise when using this device.
Attention has to be paid when the hose-plug connection is removed after
measuring! If the hose adapter is pulled off the fitting, without sealing the
connection beforehand, hot liquid may spurt out, thus presenting a danger of
scalding.
1.2 Applications
The Wöhler pressure computer DC 17 is a high-precision multi-functional de-
vice for measuring differential pressures and temperatures. The high pressure
range (up to 17 bar) permits to measure the differential pressure at flow-con-
trol valves for in hot-water, central heating and cooling installations by simply
entering a kv value. In addition, the device can be used to indicate the flow
rate, either in l/h or m3/h, with a simple push of a key. The rugged pressure
sensor is designed for the direct contact with the media gas (air), water and
oil and has a bursting pressure of 32 bar. A plug-in test hose adapter with
sinter filter elements ensures a safe zero point detection – even with extreme-
ly high primary pressure. The complete set also contains connection adapters
for fittings of many other manufacturers. Optionally available measuring pliers
permit to measure the difference between the flow and return temperature,
before and after performing hydraulic adjustments. The results can be printed
out so that the success of the work can be documented right away.
The Wöhler DC 17 can also be used for measuring the oil throughput of oil
nozzles, thus permitting to adjust the set combustion capacity. The installed
program even takes systems with and without oil preheating in account. The
DC 17 can be used to check or set the „underpressure" side (i. e. suction
side) and the overpressure side of the oil pump, according to the technical
regulations for oil installations. This setting can be then documented with the
help of a thermal printer.
A completely new processor technology ensures an extremely low power
consumption which is dynamically adapted to the desired measuring func-
34 Hotline: +49 2953 73-211 Fax: +49 2953 73-250