The DNAS 18 lamp is a low-pressure sodium arc spectral discharge lamp.

The DNAS 18 lamp has a flask made of SL 97-1 glass, inside of which there is a tube made of sodium-resistant glass - an emitter, which is filled with a strictly dosed amount of metallic sodium and argon. The arc discharge occurs in sodium vapor.

The DNAS 18 lamp is a source that emits yellow light in the spectral range with wavelengths of 589 and 589.6 nm and is used in spectroscopy, refractometry, polarimetry, chemistry, lighting engineering, as well as in medical technology and laboratory equipment.

The DNAS 18 lamp is used as a reference lamp in polarimeters (circular polarimeter SM-3) and spectrophotometers.

echnical characteristics of medical equipment Lamp DNAS 18

Rated voltage (V)

220

Rated power (W)

18

Nominal lamp voltage (V)

19

Nominal brightness (cd/m²)

100·10³

Base type

E27/30

Working position during operation

vertical, base down

Throttle voltage (V)

215

Current through inductor (A)

1.05

Lamp ignition time from the moment the voltage is applied is not less than 210 V, not more (min)

1

Pause before re-ignition not less than (min)

15

Time to reach limiting characteristics (burn-up time) no more than (min)

15

Average burning time not less (hours)

200

Minimum burning duration not less (hours)

100

Overall length no more than (mm)

165

Flask diameter no more than (mm)

33

Lamp weight no more than (kg)

0.08

Warranty period (months)

12