DE8806061U1 - Test device for measuring and/or checking devices or means - Google Patents

Description

Hand case for measuring and/or control purposes

The invention relates to a carrying case with a hinged lid or the like for holding measuring and/or control devices.

Such cases are used by fitters, tradesmen, etc. at off-site locations such as construction sites, external companies, etc. A portable case is also known (DE-OS 33 43 068) in which electrical devices are packed and can be used immediately without the hassle of unpacking. Measuring cases are also known (DE-GM 81 15 124) in which the measuring devices are conveniently sorted, placed loosely and stored in a protected manner. This measure is intended to enable the user to quickly remove the measuring devices on the construction site.

In the area of preventive fire protection, portable, mobile or stationary fire extinguishers or systems are available. For example, hand-held fire extinguishers, fire engines or similar with powder filling or other media are used as extinguishing agents. Gas extinguishing systems are also known that work with CO or Halonan as extinguishing agents. All of these devices and systems must be constantly monitored and checked for their functionality. Customer service technicians are on the move to monitor and check the fire extinguishers or fire extinguishing systems on site. The tests required for the maintenance of fire extinguishers are specified in DIN 14406, Part 4, for example. For gas extinguishing systems, the gas weights and their

Pressures and, in the case of powder extinguishers, the moisture of the powder must be checked to ensure that such devices are ready for use.

The invention is based on the object of creating a portable device with which the customer service technician can carry out the prescribed tests on the fire extinguishers or fire extinguishing systems on site quickly, safely and precisely in accordance with the state of the art.

This task is solved by the measuring and/or control devices consisting of individual electronic devices that can be used for the maintenance of fire extinguishing devices for measuring and/or controlling the fire extinguishing agents, and one of the devices is a microcomputer with a measuring amplifier with analog/digital converter, as well as an input keyboard and a display, and the individual devices can be connected to the devices or systems to be tested and controlled.

The customer service technician can use this test case to check the weights, gas pressures and moisture content of the extinguishing agents without having to carry several test devices such as test pressure gauges or similar extensive equipment. Previously, these devices had to be carried in a specially equipped test vehicle. All of these known extensive test devices are replaced by the test case according to the invention, which is therefore used in the field of preventive fire protection and its inspection.

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The particular advantage of the test case is that, for example, the weights are determined using an electronic weighing system and are very precisely displayed digitally in the electronic device in the test case. Pressure tests on stationary fire extinguishing systems that work with nitrogen bottles or CO bottles can also be displayed digitally in the test case by simply connecting the test case to these devices.

The moisture content of an extinguishing powder could previously only be determined using a very imprecise, subjective optical test. With the test case according to the invention, a moisture content test can be carried out at the customer's premises for the first time, with the result being displayed digitally in the case.

Further details of the test case are identified in the subclaims. An example of a test case is shown in the drawing and is described in more detail below. It shows:

Fig. 1 the case in closed position,

Fig. 2 the opened case with a view of the individual electronic devices,

Fig. 3 the panel of the test case. The test case 1 consists of a housing part 2 with a cover

kel V, .<·-■« ^s e .ten. Ti^g-iteil 4 with the closure parts 5 and 6. In the housing part 2 the electronic components are covered by a panel 18. The individual devices are as follows: the weighing plate 7 with the weighing beam 8 underneath, the accumulator 9, which is arranged below the weighing plate 7 next to the weighing beam 8. 10 is the digital display, ii the �Agr;&uacgr;&aacgr;&rgr;&iacgr;«! f elü, üiiu ilaö Täätefifeid üixt 13 the printer. The measuring sensors with the corresponding connection devices are designated 14 for the charging socket, 15 for the reference sensor for the moisture measurement and 16 for the socket for the moisture sensor. The electronic pressure sensor with cable is marked 17.

The keypad 12 has only 6 individual keys, namely for ON/Off, for start, for print, for moisture measurement (percent F), weighing (grams) and for pressure measurement (bar).

With this suitcase-sized device, the customer service technician can record all functions required to measure and control the status of fire extinguishers or fire extinguishing systems and their fire extinguishing agents.

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Claims (1)

PROTECTION CLAIMS / \/ Test device for measuring and/or checking devices or Mitteini characterized in that the measuring and/or control devices consisting of individual electronic devices that can be used for the maintenance of fire extinguishers for measuring and/or controlling the fire extinguishing agents are housed in a carrying case with a hinged lid or the like, one of the devices being a microcomputer with a measuring amplifier with analog/digital converter, as well as an input keyboard and a display, and the individual devices can be connected to the devices or systems to be tested and controlled. 2. Testing device according to claim 1, characterized in that it is provided with its own power supply. 3. Testing device according to claim 2, characterized in that the power supply is designed as a rechargeable battery. 4. Test device according to claims 2 and 3, characterized in that the accumulator is provided with an on/off switch that can be controlled by the microcomputer and thus only acts as a consumer during the measuring and control phases. 5· Test device according to claims 1 to 4, characterized in that for measuring and checking the condition of liquid, gaseous and powdery fire extinguishers in hand-held fire extinguishers, stationary or mobile devices - 7 &mdash; ·■·· 4 · extinguishing agents the individual devices are equipped with measuring sensors . 6. Testing devices according to claims 1 to 5, characterized in that the individual devices are provided with devices with which the weights and/or the pressure and/or the humidity of the extinguishing agent can be measured or controlled and digitally displayed. 7. Test device according to claims 1 to 6, characterized in that the individual devices are provided with coupling pieces to which a universal adapter is assigned. 8. Testing device according to claim 7, characterized in that the individual devices can be connected via the coupling pieces to a pressure sensor and/or a humidity sensor and/or a weighing platform. 9. Testing device according to claims 1 to 8, characterized in that the microcomputer is associated with a printer with which the measured values can be printed out completely as a unit. 10. Testing device according to claim 9, characterized in that the microcomputer is provided with an electronic, programmable unit, so that the printout, which can be removed from the printer with a company header, is provided with the date and time of the measurements and the identification number of the customer service technician who carried out the measurements.