SCIENTIFIC GLASS APPARATUS


SCIENTIFIC GLASS APPARATUSpubs.acs.org/doi/pdf/10.1021/ac60233a753and provision to accept various types. | of readout de...

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WAVELENGTH 190m/x 800



RANGE:

to

with

700τημ—extendable selected

WAVELENGTH Better

to

photomultiplier

ACCURACY:

than

±0.5m/i

over

entire

range •

PHOTOMETRIC

SCALE

EXPANSION

(FULL SCALE VALUES) :

High resolution and constant bandpass are important features of this new single-beam, double-grating instrument which boasts a large sample compartment to accommodate a variety of sample sizes and shapes. Accessories plug in . . . never require '"wiring-in." Optical systems are easily exchanged.

Transmittance



Notice how the meter and controls are grouped together on a tilted panel! Kor easier readability, all markings are high con­ trast white on black.



PHOTOMETRIC

Β

PHOTOMETRIC

B L O O M F I E L D ,

Branches:

Boston 16 Mass.

Danbury Conn.

N E W

ACCURACY:

REPRODUCIBILITY: ±0.1 %

BANDPASS: or



0.5

2.0m/i

ELECTRICAL Better

LINEARITY:

than

±0.2%

of

full

sensi­

tivity on all ranges •

NOISE LEVEL: Less thon 0.1 %



POWER

REQUIREMENTS:

1 1 5 or 2 3 0 volts with built-in power transformer,

SCIENTIFIC GLASS CO. INC. APPARATUS

1.0-

Constant over entire range 0 . 2 ,

Other features include built-in filters -— selected by the flick of a lever . . . . fingertip selection of deuterium, tungsten or mer­ cury calibration lamp . . . . and provision to accept various types of laadout devices and recorders. For the entire Β & L Precision Spectrophotometer story, ask for Catalog 33-2151. (as pictured)

10%

.5-2.5,

of full scale

Better than

A red light glows on the instrument panel the instant you turn on the photometric range switch. This same switch also lets you select any one of five photometric ranges in transmittance or absorbance. Located directly above the range switch is the '"100% Adjust" control which sets the dial pointer to whatever reference value you wish.

Precision Spectrophotometer

and

3.0

±0.3%

S-3831X

100%

Absorbance—0.0-1.0,

50

or

60

cycles

AC.

$3,600.00

L A B O R A T O R Y . . . • Α Ρ PA R AT U S • I N S T R U M E N T S • C H E M I C A L S • G L A S S WA R Ε

J E R S E Y

Elk Grove Village III.

Fullerton Calif.

Philadelphia 2 Penna.

Silver Spring Md.

Syracuse 2 Ν. Υ.

Circle No. 143 on Readers' Service Card See Buyers' Guide for all products/sales offices. VOL. 3 8 , N O . 1 , JANUARY

1966

71 A