Millipore Milli-Q Gradient A10 Water Purification, Millipore (CAT#: STEM-GLE-1250-LGZ)

The manufacturer of Millipore Milli-Q Gradient A10 Water Purification is Millipore. Model is Gradient A10. The water purification system from Millipore type Milli-Q Gradient A10 measures the amount of Total Organic Carbon (TOC) in ultrapure water with the built-in UV lamp.

Condition: used
Flow rate:

1.3 – 1.7 LPM with Millipak® Express 20
1.3 – 1.7 LPM with BioPak
Resistivity:

Minimum 18.0 MΩ.cm @ 25 °C
Typically 18.2 MΩ.cm @ 25 °C
Particles: ≤ 1/ml (particle size > 0.22 μm)

Pyrogens: BioPak installed < 0.001 Eu/mL

TOC: Maximum 5 ppb (this specification came from test conditions where a Milli-Q Gradient was fitted with a Q-Gard® 1 Purification Pack and a Quantum EX Ultrapure Cartridge and the feedwater came from a Millipore RiOs Water System. The feedwater TOC value was < 50 ppb). The TOC of the Milli-Q Product Water can vary as a function of the feedwater TOC.

Micro-Organisms: ≤ 1 CFU/mL

Weight:

Milli-Q Gradient: Operating weight (wetted Q-Gard, Quantum and Millipak): 16 kg.



Milli-Q Gradient A10: Operating weight: 16.8 kg.
Electrical:

The electrical requirements for a Milli-Q Gradient (or Milli-Q Gradient A10) are:

120 VAC ± 10%, 50/60 Hz, 100 VA, 0.5 amp source, 2 amp Time Lag fuse used (ref. ZMQS6V0T1, MQP6V0T1, ZMQS6V001, ZMQP6V001).
230 VAC ± 10%, 50/60 Hz. 0.26 amp source, 1 amp Time Lag fuse used (ref. ZMQS5V0T1, ZMQP5V0T1, ZMQS5V001, ZMQP5V001).
The source of electrical power should be within 1 meter of the Milli-Q. The source of electrical power must be earth grounded.
Measurement Ranges for TOC, Resistivity, Conductivity and Temperature:

Resistivity Measurement Range: 2.4 – 18.2 MΩ.cm (compensated to a 25 °C value)
Conductivity Measurement Range: 0.055 – 0.294 μS/cm
Temperature Measurement Range: 0 – 45 °C (not the system temperature operating range)
TOC Measurement Range: 1 – 999 ppb

The system produces excellent Type 1 water quality for spectroscopy, chromatography, contaminated samples and micronutrients.

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