Total indicator reading

With the dial indicator set up as described above, place the indicator stem well into the bore of the stuffing box. The stuffing box should be concentric to the shaft axis to within a 0.005 inch total indicator reading. 

TIR total indicator reading WPC world product code... 

Arbor Tool Setting Shoulder. The face of the shoulder should have a minimum T.LR. (total indicator reading). For example, typically a T.I.R. of 0.00015 in. 10.00020 in. is acceptable for an 8-in.-diameter knife in most applications. A lower T.I.R. can be achieved with special bearing arrangement. T.I.R. readings of 0.00005 in./.00010 in. are not uncommon in precision slitting heads today. 

Full indicator movement FIM is a term used to identify tolerance with respect to concentricity. Terms used in the past were fiill indicator reading (FIR) and total indicator reading (TIR). 

Check total indicated runout (TIR) of the pump shaft by placing a magnetic base-mounted dial indicator on the pump housing and a dial stem on the shaft. Zero the dial and rotate the pump shaft one full turn. Record reading (Figure 56.7). 

Pyrheliometer is an instrument that measures only the direct radiation from the solar disk itself, without bouncing off clouds or the atmosphere. Concentrating solar collectors utilize only this part of the total solar radiation. Its measurement gives an indication of the clearness of the sky. The normal incident pyrheliometer (NIP) measures this form of radiation. A tracker, called the equatorial mount, is used to keep the NIP pointed at the sun. The difference between the NIP and the total pyranometer readings is referred to as the diffuse solar radiation. 

We now consider adiabatic channel potentials. As indicated in the introduction, for this system with rapid rotation of the collision axis R, we develop here the Axially Nonadiabatic version of the SACM [Ig]. In order to take into account the quantum character of the also rapid radial motion we plan to provide a generalisation of the approach 110] developed for low-energy capture in systems with isotropic interaction. For open-shell systems, this SACM version is based on the diabatic matrix representation of the roronic Hamiltonian supplemented by the S-S FS interaction (see e.g. [11]). Thus the total Hamiltonian reads ... 

The ideal slide parallelism or level is 0.001-0.002 in. total, measured from left to right and front to back using the dial indicator. Most older presses will realistically end up between the 0.002 and 0.005-in. level. If your indicator readings are worse than 0.005 in. you will need some slide and gib repairs to improve the parallelism. 

Run-Out Measurement. Drill/collet concentricity, or total indicated mn-ont (TIR), is a measnre that indicates how trne the assembly rotates. It can be determined while the spindle is running at varions speeds (rpm), which is referred to as a dynamic form of measnrement. Another method is performed while the spindle is not rnnning and is called a static measnrement. Static TIR is determined by rotating a Vg-in (0.1250-in)-diameter pin installed into the collet by hand while reading movement on a dial indicator placed against the pin at a distance of approximately 0.800 in (simnlating the distance of the drill point) from the collet nose (refer to Fig. 24.6). Of course, the pin nsed to measnre TIR mnst itself be concentric. 

Record the total vapor pressure reading firom the instrument to the nearest 0.1 kPa (0.01 psi). For instruments that do not automatically record a stable pressure value, manually record the pressure indicator reading every minute to the nearest O.I kPa. When three successive readings agree to within 0.1 kPa, record the result to the nearest 0.1 kPa (0.01 psi). 

PARCH reads update information from formatted cards, or other input file containing card images. Input having existing component indices replace old data with those indices. Otherwise the new component data is added to the library, with the restriction that the total number of components is always less than or equal to 100. 

The total it electron energy is the sum of occupied orbital energies multiplied by two if. as is usually the ease, the orbital is doubly occupied. The charge densities and free valency indices were treated in separate sections above. The bond order output should be read as a lower triangular serni matrix. The bond order semi matrix for the butadiene output is shown in Fig. 7-7. 

Sodium bicarbonate is generally added to increase alkalinity and muriatic acid (HCl) or sodium bisulfate (NaHSO ) to reduce it. In general, with acidic sanitizers such as chlorine gas or trichloroisocyanuric acid, ideal total alkalinity should be in the 100—120 ppm range, whereas, with alkaline products such as calcium, lithium, or sodium hypochlorite, a lower ideal total alkalinity of 80—100 ppm is recommended (14). Alkalinity is deterrnined by titration with standard sulfuric acid using a mixed bromcresol green—methyl red indicator after dechlorination of the sample with thiosulfate. Dechlorination with thiosulfate causes higher readings due to formation of hydroxyl ion (32) ... 

The static pressure is the fan total pressure less the fan outlet velocity pressure. It is indicated. Figure 12-129, by the differential of an impact tube facing the direction of air flow in the fan inlet and by a static reading normal to the air flow in the fan outlet. ... 

Two distinctly different coulometric techniques are available (1) coulometric analysis with controlled potential of the working electrode, and (2) coulometric analysis with constant current. In the former method the substance being determined reacts with 100 per cent current efficiency at a working electrode, the potential of which is controlled. The completion of the reaction is indicated by the current decreasing to practically zero, and the quantity of the substance reacted is obtained from the reading of a coulometer in series with the cell or by means of a current-time integrating device. In method (2) a solution of the substance to be determined is electrolysed with constant current until the reaction is completed (as detected by a visual indicator in the solution or by amperometric, potentiometric, or spectrophotometric methods) and the circuit is then opened. The total quantity of electricity passed is derived from the product current (amperes) x time (seconds) the present practice is to include an electronic integrator in the circuit. 

Fig. A.3. Light meter used by the author (Model 8020, Pelagic Electronics). For total light measurements, the signals are integrated with capacitors. Milliammeter reading is automatically reset at full-scale position, and the number of resets is digitally indicated below the meter. The box at the right contains a photomultiplier and sample compartment.

The more sophisticated treatment of Ingle and Crouch [7] comes very close but also misses the mark for an unexplained reason they insert the condition ... it is assumed there is no uncertainty in measuring Ert and Eot... . Now in fact this could happen (or at least there could be no variation in AEr) for example, if one reference spectrum was used in conjunction with multiple sample spectra using an FTIR spectrometer. However, that would not be a true indication of the total error of the measurement, since the effect of the noise in the reference reading would have been removed from the calculated SD, whereas the true total error of the reading would in... 

Figure 65-1 shows a schematic representation of the F-test for linearity. Note that there are some similarities to the Durbin-Watson test. The key difference between this test and the Durbin-Watson test is that in order to use the F-test as a test for (non) linearity, you must have measured many repeat samples at each value of the analyte. The variabilities of the readings for each sample are pooled, providing an estimate of the within-sample variance. This is indicated by the label Operative difference for denominator . By Analysis of Variance, we know that the total variation of residuals around the calibration line is the sum of the within-sample variance (52within) plus the variance of the means around the calibration line. Now, if the residuals are truly random, unbiased, and in particular the model is linear, then we know that the means for each sample will cluster... 

Figure 24.9a shows a plot of measured total carbon (CO plus CO2, mole percent) versus equivalence ratio. The solid line was calculated assuming chemical equilibrium at the measured temperatures. The data points represent the measured CO and CO2 mole fractions (dry basis) using the fast extractive-sampling system. Horizontal bars represent the uncertainty in (f> due to reading and calibration errors vertical bars represent the uncertainty in the CO and CO2 mole-fraction sum due to line strength and absorption measurement uncertainty. The data are consistent to within 4% of the equilibrium predictions at all values of (p, indicating reliable operation of the system. 

TITRATION. Add 20 ml ethanol to the 5 ml aqueous phase and 5 drops phe-nolphthalein indicator. Pipette into the flask 10 ml 0.05 M sodium hydroxide and titrate with the same solution from a 10-ml burette after noting the initial volume. Note Read the burette to 0.02 ml accuracy. Titrate to the first permanent pink colour this fades due to CO2 from the air, so don t delay. Add the 10 ml initially pipetted into the flask to the volume delivered from the burette to obtain the total titre (probably in the range 13-18 ml). 

---