General Information; Product Description - BD Sensors KHP 4002 User Manual

1. General information

Read these operating instructions carefully prior to operating the pneumatic calibration test
pump. The pressure inside the pump can be extremely high. Ensure that all pressure
connections have been established correctly.

2. Product Description

The calibration test pumps are used to generate pressure and vacuum for checking,
adjusting and calibrating mechanical and electronic pressure measuring instruments by
comparative measurements. These pressure tests may be carried out in laboratories,
workshop or on site at the measuring point.
If the instrument to be tested and a sufficiently accurate reference measuring instrument
are connected up to the test pump, the same pressure is applied to the two measuring
instruments when the pump is operated. By comparing the two measure valves at random
pressure values, the accuracy can be verified or the instrument under test can be
adjusted.
Despite its compact dimensions, the calibration test pumps are easy to operate and allows
for exact generation of the required test pressures; a change-over switch enables the
generation of vacuum as well (KHP 4002 / KHP 6002). The pump is fitted with a fine
adjustment valve for the precise adjustment of pressures. The reference instrument is
screwed directly on to the top of the pump and the unit under test is connected by means
of the connection tube incorporating an adapter, contained in the scope of delivery.
(1) = pressure connector for
reference instrument
(2) = fine adjustment valve
(3) = pressure relive valve
(4) = change-over switch for
pressure/vacuum generation
(5) = handles
(6) = adjustable knurled nut for the
adjustment of the delivery rate
of the pump (overpressure pro-
tection)
(7) = pressure connection for test
specimen
(8) = test tube, length app. 0.5 m
EN
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