ISOTOPE cube Site Requirements

The ISOTOPE cube is an CHNS / O Elemental Analyzer.

Physical Properties

The physical properties of the ISOTOPE cube are described in Table 3-4.

Table 3-4: Physical dimensions with and without a VLS

Width	480mm
Depth	550mm
Height	570mm
Height (with VLS)	1035mm
Weight	65kg
Weight (with VLS)	80kg

The height provided includes the feet.

An additional 100mm is required for connectors on the back.

Location

Room

Mode of International Protection Rating - IP 20.
Dry room.
Well ventilated.

Bench Space

Must be of a construction adequate to support the weight of the instrument and associated systems, should be heat resistant and should also be free of any vibration or movement which may impair the performance of the instrument.

Placement

Adequate space must be left for ventilation and servicing. A minimum of 250mm clearance is essential.

Outputs

Heat Dissipation

The maximum heat out outputs are displayed in Table 3-5.

Table 3-5: Max heat output

ISOTOPE cube	1400W
VLS	100W

Exhaust Fumes

The vent ports of the individual systems should be connected to a fume extraction system.

Environment

Room Temperature

The maximum operational room temperature should not exceed 25°C (ideally 22°C). Large temperature fluctuations caused by sunlight or drafts (including air conditioning units) have to be avoided during measurement, and should not exceed 1°C/ hour.

An air-conditioned room is advantageous as the analyzer emits heat. Inverter air conditioning units are recommended over conventional units.

Humidity

Relative humidity should not exceed 60% at any temperature.

Corrosive and Harmful Atmosphere

Instrument must be located in a clean air, pollution free environment.

Dust Free Environment

High dust levels increase the probability of computer disc drive failures. Dust particles will also block air filters and fans on the instrument which may cause overheating.

Gas Supplies

Gas Regulators

Clean, two stage regulators with stainless steel diaphragms must be fitted on the gas supplies. Second stage regulator must be capable of delivery pressures up to 4 bar (60 psi).

Gas Requirements

Gases that must be provided by the customer are listed in Table 3-6 and should be of sufficient quality as described in Table 3-6.

Table 3-6: Gas requirements

Category	Type	Purity Grade	H₂O Content
Carrier gas (Helium)	Adjust the helium pressure at the delivery point until the pressure display on the PC reads 1200-1250 mbar.	99.996	< 1 v.p.m
Combustion gas (Oxygen)	Intake pressure 2.5 bar	99.995	< 1 v.p.m

Does it make sense to state a different purity here compared to the centrion requirement?

Surely it is sensible to only state one number and to go for the highest purity.

Maybe address this as part of a bundle specific site requirements?

For all EAs - a gas saver can be used during non measurement periods? Standby etc.

Sufficient reagents and standards are provided with the instruments for installation. Subsequent consumables sets will need to be purchased from Elementar for further analysis (Table 3-7).

The PYRO cube should mention that an extra pressure regular should be provided for the flush gas in PYRO mode, also which gases can be used (N₂, Ar, He) as the pressure needs to be adjusted for a flow of 100 ml/min

... Check - my understanding was that it would only require an extra regulator if Ar was used. The system in the lab uses one regulator for the helium and the flush flow is controlled by restricting the halar tubing.

Table 3-7: Reagents and standards (available from Elementar)

Category	Type
Reagents	Various chemicals for filling the reaction tubes
Calibration standards	Sulfanilamide Acetanilide Other standards such as stearic acid or benzoic acid (for the PYRO cube). Substances must have at least p.a. quality or be certified for elemental analysis.

Electrical

A single connection to the mains supply is required and must include and earth conductor.

The electrical systems are susceptible to large voltage transients. These should be protected by a suitable transient suppressor if the local supply is of poor quality. Some sites may also wish to protect some or all the power circuits from power failure with an uninterruptible power supply unit. Voltages quoted must be adhered to. For sites where the voltage does not comply with the quoted specifications, a suitable transformer will be required.

Table 3-8: Electrical specifications

	ISOTOPE cube	VLS
Voltage	120V+/-10% (120V tap) 200V+/-10% (200V tap) 230V+/-10% (230V tap)
Phase	50-60Hz	50-60Hz
Max. Current	13.6-6.5A	0.75-0.4A
Max. Fuse Rating	16A	-
Transformer Rating	1.5kVA	0.08kVA

Number of electrical sockets required: 1

All connections to the mains supply must include an earth conductor. The system is equipped with a 16A IEC320/C19 cold condition free sockets. Appropriate cables will be delivered.

Take suitable action to avoid electrostatic discharge. Electrical discharges can lead to malfunctions of the instrument.

Computer

A control PC has to be provided by the customer for the operational control of the system. Control PCs can be provided by Elementar on request. The successful operation of the analyzer depends heavily on the control PC as it is an integral part of the system.

We recommend to only use programs on this PC for the dedicated operation and data evaluation of the analyzer to minimize the likelihood of PC failures effecting the analyzer performance.

The EA requires a single USB port. Additional ports may be required for peripherals such as balances etc.

The PC requires administration rights to install the software, but does not require administrator rights during normal operation.

Balance

Table 3-9: Balance specifications

Precision

0.001mg

For the maximum precision of the instrument an appropriate balance needs to be used for weighing the samples. An RS232 or USB cable is available for automatic data transfer between the balance and the PC.

Note: If PC and balance were not delivered from Elementar, we reserve the right to perform the installation with our own instruments.