Operating instructions

4. Calibration page 37
Mercury Instruments UT-3000-E_V2.11.docx 31.07.12
Analytical Technologies
The Mercury Instruments Calibration System consists of a specially designed mercury vessel
surrounded by an aluminium jacket that is cooled by a thermoelectric cooler. The temperature of
the mercury vessel is exactly measured with a high precision temperature sensor. The mercury
chamber contains elemental mercury of high purity. The electronic temperature sensor has to be
connected to the UT-3000 ULTRATRACER using the cable delivered with the system. The
temperature of the calibration gas and the concentration of mercury are displayed on the UT-3000
screen if a calibration is performed.
Using the Static Calibration Unit:
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 CAUTION: never tilt the Static Calibration Unit nor turn it over during use!
Prevent from shocks !
For transportation remove the septum cap from the mercury vessel and close it with a
screw cap. Do not apply force to the mercury containing glass bottle !
Used septum may have small mercury droplets on its surface: be careful when
removing it. Use a small piece of wire (paper clip) to remove the septum from the red
plastic cap. Place septum and wire into a plastic bag for disposal.
a) Place the calibration unit on a clean, stable and flat surface.
Make sure that the room is well ventilated or use a fume hood whenever you open
the mercury cell !
Take the red septum cap and make sure that a new septum has been inserted.
Open the cover of the calibration unit by twisting the latch. Remove the red cap which
closes the mercury cell for transportation and store it in a safe place. Note that there may
be small droplets of mercury clinging onto the surface of the septum, therefore handle
the cap and the septum with care ! Do not touch the septum with fingers. Screw the
red septum cap (with a new septum !) onto the glass thread of the calibration cell.
b) Connect the power supply (round plug) to the calibration unit. The green LED will light
and the internal Peltier cooler will start to operate.
c) Allow the system to stabilize for at least one hour.
d) Take the syringe which is included in the system and hold it vertically. Push the capillary
of the syringe carefully through the septum of the calibration unit as far as possible,
always holding it vertically.
Do not apply too much force to the septum and the screw cap, as these are mounted onto
a glass bottle which contains the mercury.
Important: hold the syringe vertically as long as the tip of the capillary is inside the
calibration cell ! Otherwise there is the risk of contamination of the syringe with liquid
mercury which finally may result in a contamination of the calibration port of the UT-3000
analyzer.