BUSCH VACTEST TPP 900 - Product Description; Interface Illustration; Product Identification; Delivery Content

2 | Product Description
4 / 24 Instruction Manual VACTEST TPP900_EN_en
2 Product Description
The mobile gauge TPP 900 consists of combined Piezoresistive and Pirani sensors whose
measurement principles are based respectively on the change of resistance of a strain
gauge resulting from the diaphragm deflection and the thermal conductivity of gases.
The Piezoresistive sensor provides direct measurements which are independent on the
gas nature while the Pirani sensor uses an indirect measurement method, dependent on
the gas nature, see Adjust Gas Correction Factor [►15].
The gauge can also be operated under vacuum inside of a vacuum chamber.
Due to the integrated data recorder functionality it is possible to store up to 2000 meas-
urements in the vacuum gauge. By means of the USB interface you can transmit the
stored measurement data to a PC or record measurements online on PC as well.
2.1 Interface Illustration
Flange ISO-KF 16
Mode key
Pressure
unit
Pressure
display
Refresh: 1.0s
Change battery
display
Operation mode
USB interface
Connection for
mains adapter
12 V ; 50 mA ; jack 2.5 mm (+ at tip)
Battery compartment
cover
2.2 Product Identification
The product model can be found on the product's nameplate. Technical modifications
are reserved without prior notification.
2.3 Delivery Content
Included in the delivery consignment are:
– Mobile gauge TPP 900
– Protective cover
– 9 Volt block battery
– Instruction manual
Available accessories, consult the chapter Accessories [►17].