UPDATE July 2024: This lamp is now discontinued, with no further units available for ordering.
Heraeus Low Pressure Mercury HG2 Lamp 2.7 W
Product Number: 80017485
HG-2 Lamp – Features
Heraeus has developed a compact low pressure, low voltage Mercury vapour lamp type HG2, principally for use in scientific instrumentation. This lamp has a highly stable output predominantly at the 253.7 nm Mercury line. When use with the Heraus C430 power supply the line output is much higher than, and the stability comparable to, that of a Deuterium lamp. Other lines, which total 20% of the output, are at 313 nm, 365 nm, 404 nm and 435 nm. The HG-2 has a strike voltage requirement of just 21V and a typical power requirement of 2.7 Watt, making this lamp especially suitable for use in portable instruments.
Lamp Mounting
It is advisible that the lamp should be mounted with the base and leads uppermost. Any clamp around the lamp envelope should be at the base end of the lamp. The clamp should be of low thermal capacity and poor thermal conduction. If the mount is such that it cools the lamp significantly Mercury can be condensed in this region adversely affecting the performance of the lamp. The lamp, which is temperature sensitive, must be protected from draughts if optimum stability is to be achieved.
Specifications HG-2 Lamp
Lamp Type | HG-2 |
Part number | 80017485 |
Wattage (W) | 2.7 |
Ignition voltage (V) | 21 max |
Lamp voltage (VDC) | 8-14 @ 150 mA |
Lamp current (mADC) | 100-300, 150mA recom |
Lead length (mm) | 280 |
Base Filament voltage warm-up (VDC) |
without 5-7 |
Filament running voltage (VDC) | 3-4.5 |
Filament current warm-up (mADC) | 400 @ 6V DC |
Filament run current (mADC) | 250 @ 3.5 V DC |
Output at lamp surface@254 nm | 15 mW/cm2 with 150 mA anode current |
Output at lamp surface@254 nm | 4000 h typical |
Power supply | C430B2 |
Part no. power supply | 80017411 |
- Model: 80017485
- Manufactured by: Heraeus Noblelight