Lovibond Spectrophotometer SpectroDirect Indonesia

Spectrophotometer SpectroDirect

The SpectroDirect is a modern single-beam spectrophotometer with an excellent price/performance ratio that is specifically designed for water testing. The instrument is equipped with a wide range of pre-programmed methods based on the proven range of Lovibond® tube tests, tablet reagents, liquid reagents and powder reagents (Vario
Powder Packs).

Optics
The SpectroDirect is a single-beam spectral photometer (see illustration). The light source is a tungsten halogen lamp with flash function. The lamp is switched on only momentarily during of the measurement process1), so there is no need for a warm-up period. The SpectroDirect is ready to perform a self-test as soon as it is switched on. The light passes through an entry slot to the monochromator, where it is split into spectral ranges. The monochromator is a  holographically produced, transparent grating. The movable mirror ensures that light of the desired wavelength
is focused automatically so that it passes through the exit slot, into the sample chamber and therefore through the water sample. The light that is not absorbed by the sample travels to the silicon photodiode detector. This signal is then evaluated by a microprocessor and shown as a result in the display.
1) (Exception: permanent light is used for a wavelength scan).

Multifunctional sample chamber
Round vials measuring 16 mm and 24 mm in diameter and rectangular cells with pathlengths from 10 to 50 mm may be used without an adapter. Only the 10 mm cell will be fixed by a little holder that must inserted into the sample chamber.

New methods

Lovibond MultiDirect Indonesia

Lovibond MultiDirect

The MultiDirect is a contemporary, microprocessor-controlled photometer with ergonomically designed keypad and large-format graphic display. It is equipped with a wide range of pre-programmed methods based on the proven range of Lovibond® tablet reagents, liquid reagents, tube tests and powder reagents (VARIO Powder Packs). Users can also store their own methods.
The MultiDirect is a filter photometer using interference filters at 6 different wavelengths. The unique design of the optics allows the automatic selection of the required wavelength without any moving parts. This and the dual beam technology utilizing an internal reference channel, guarantees the highest accuracy.
For portable use, the instrument operates with seven standard rechargeable batteries (supplied). These batteries are available all over the world and are easily changed. The integrated intelligent charge controller allows simultaneous operation of the unit and battery charging (using the supplied power pack). The MultiDirect also operates without a power pack by using alkaline manganese batteries.
The entire instrument, including sample chamber (the most critical component of any photometer) and battery  compartment, is waterproof, ensuring that no water comes in contact with the electronic components.

N.I.S.T. Traceability
The instrument has a factory calibration, which is related to internal standards, which are not N.I.S.T traceable. The instrument may be calibrated by the user in a “user calibration mode” with N.I.S.T traceable standards.
(N.I.S.T. = National Institute of Standards and Technology)

New methods
Test methods are regularly updated to suit market requirements. You can find software updates for new methods and additional languages on our website at www.tintometer.com.

Polynomials
With the help of an external mathematical program, the corresponding polynomial is created from data pairs (concentration/absorption). A known polynomial may also be used. 25 order polynomials (y = A+Bx+Cx2 +Dx3 +EX4 + FX5) can be stored together with user-specific parameters such as wavelength, measuring range, unit and number
of decimals.

Concentration
This function can be used to measure 2 to 14 known standards. On the basis of the concentrations/ absorption pairs obtained, the photometer will calculate a linear interpolation between the measured points. Up to 10 methods can be stored for further sample measurements

Technical Data

Adilkah Tuhan itu?

Mungkin Anda pernah atau bahkan sering mendengar orang-orang di lingkungan Anda berkata ” Tuhan telah bertindak tidak adil kepada ku”. Atau mungkin Anda juga pernah mengucapkan hal seperti itu? Berbicara tentang keadilan memang sangat susah untuk dilakukan, namun bagi Tuhan itu bukan lah perkara yang sulit. Karena kita semua mengetahui bahwa Tuhan memang Maha Adil. Yang perlu direnungkan adalah apakah sama parameter keadilan versi Tuhan dibanding versi manusia. Mengapa sulit bagi manusia untuk berbuat adil? Tuhan tidak pernah menciptakan sesuatu sama kondisinya. Termasuk masalah keadilan, jika ada manusia mampu berbuat adil, berarti Tuhan telah “gagal” karena makhluk ciptaan nya telah mampu membuat suatu kondisi yang sama. Padahal kita tahu dalam kitab suci Alquran, ada ayat yang menjelaskan “tidak ada yang setara dengan Dia”. Jadi tidak ada keadilan di dunia adalah hal yang wajar. Karena memang sudah diciptakan seperti itu.

Lalu bagaimanakah dengan keadilan Tuhan?

Lovibond CheckitDirect Photometer Indonesia

CheckitDirect Photometer

The CheckitDirect models each offer one test method, while the CheckitDirect+ units are programmed for a number of different parameters. The units supply accurate, reproducible results very quickly. Other major advantages include ase of operation, ergonomic design, compact dimensions and safe handling. The calibration and software-based adjustment options mean that the CheckitDirect is also suitable for use as a testing instrument. The tests are conducted using either Lovibond® tablet reagents with long-term stability and a guaranteed minimum 5 or 10 year shelf life, VARIO powder reagents or using liquid reagents.

N.I.S.T Traceability
The instruments have a factory calibration, which is related to internal standards which are not N.I.S.T traceable. The instrument may be calibrated by the user in a “user calibration mode” with N.I.S.T traceable standards.

Calibration certificate
Beside the “Certificate of Compliance” which is supplied with each CheckitDirect, calibration certificates are available at cost on request. Calibration certificates are individually supplied per instrument and per method. The Calibration Certificate has to be ordered together with the new instrument and cannot be delivered at a later stage.

Delivery Content
Each CheckitDirect is supplied in a case complete with 9 V battery, 3 round vials with cap, tablets and/or liquid reagents or VARIO Powder Packs, accessories, instruction manual, guarantee sheet and a certificate of compliance.

Technical data