mikron 31 photometer

The compact UV/Vis/IR-detector with one or two light sources for simultaneous measurement

As a detector in an analytical laboratory or as one of the many analysing channels in SMB systems in the process chromatography and for other photometric applications.
An exact measurement of absorption together with a reference channel with one or two changeable light sources of differing wavelengths – also simultaneous.
Four measuring cells available.

Product advantages

small

Regardless of where you take measurements, mikron 31 is right on the spot. With a diameter of 32 mm (1.25 in.) and only 125 mm (5 in.) or 150 mm (6 in.) in length, it fits perfectly in every position, either fixed to the side of your system or simply on a laboratory stand.

rapid

Measuring 100 Hz for the dynamic course of ab­sor­bance at two wa­ve­lengths? – No problem with the mikron 31. And thanks to the reference chan­nel, with great accuracy. There is no other LED detector which measures two wavelengths at the same time.

cool

A mikron 31 can be ope­ra­ted in cooled sur­roun­dings at 3 °C (37 °F).
Because of its small size it can be put com­ple­te­ly into a re­fri­ge­ra­tor. And it stays cold while be­ing measured – Just what you need for bio­che­mi­cal app­li­ca­tions.

bio-compatible

All measurement cells are ob­tain­ab­le for titanium and PEEK too – both are chemically resistant and bio­lo­gi­cal­ly inert. The wet­ted lenses are ob­tain­ed from fused silica. With PEEK in USP Class VI, your total process chain remains do­cu­men­ted and compliant.

open

mikron 31 speaks in many ways – on the hard­ware side via USB-C or via industry standard RS-485.
We have drivers for all current programs. More­over there is the open Runge protocol for your own im­ple­men­ta­tion.

modular

mikron 31 can be changed after the purchase: a different measuring cell, a second light source? Almost every wavelength from the range 235 to 1,030 nm can be delivered.
Even when your task changes, mikron 31 is still used.

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Basic device

Detektor

Absorbance	display range	0 ... 4.5 AU
	linear range	200 µAU ... 2.4 AU (1)
	noise	±10 µAU (2)
	sampling rate	1 ... 100 Hz
Channels	number	1, 2   with reference channel
	operating modes	single-wavelength
		single-wavelength, switchable (3)
		two-wavelength (3)
Interface	USB-C or RS-485 (data, energy)
Power	electrical	< 2.5 W ( < 500 mA at 5 V)
Protocol	open, text-based
Drivers	DataApex Clarity, SCPA PrepCon, LabView (4)
Markings	CE, UKCA

⁽¹⁾ at 10 mm layer thickness, λ = 255 nm, single light source
⁽²⁾ at τ = 1 s with 80/20 v/v water/methanol at 1 ml/min
⁽³⁾ for two LED light sources
⁽⁴⁾ All registered trademarks are the property of their respective owners.

Light sources

Technology	LED, can be changed by the user
Wavelength	bandwidth	10 nm
	accuracy	±2,5 nm
	precision	±1 nm
Features	automatic recognition
	operating hours counter
Delivery programme	UV-C	235, 255, 280 nm
	UV-B	300, 310 nm
	UV-A	360 nm
	visible violet	410, 415 nm
	blue	460 nm
	green	500, 545 nm
	orange	630 nm
	red	730 nm

–
other wavelengths on enquiry

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Measuring cells

analytical 10 µl

path length	10 mm
dwell vol.	10 µl
ports	10-32 UNF
	–
cell body	stainl. steel (5)
	titanium (6)
	PEEK (7)
wetted	cell body
	PTFE
	fused silica
flow rate	50 ml/min
max. press.	100 bar (5,6)
	40 bar (7)

⁽⁵⁾ 1.4301
⁽⁶⁾ 3.7165, also ELI
⁽⁷⁾ also as USP class VI, TSE-free

analytical 2.4 µl

path length	10 mm
dwell vol.	2,4 µl
ports	10-32 UNF
	–
cell body	stainl. steel (5)
	titanium (6)
	PEEK (7)
wetted	cell body
	PTFE
	fused silica
flow rate	10 ml/min
max. press.	100 bar (5,6)
	40 bar (7)

⁽⁵⁾ 1.4301
⁽⁶⁾ 3.7165, also ELI
⁽⁷⁾ also as USP class VI, TSE-free

preparative 6.4 µl

path length	0.5...2.0 mm
dwell vol.	1.6...6.4 µl
ports	1/4″-28 UNF
	coned/flat
cell body	stainl. steel(5)
	titanium (6)
	PEEK (7)
wetted	cell body
	PTFE
	fused silica
flow rate	1,000 ml/min
max. press.	100 bar (5,6)
	40 bar (7)

⁽⁵⁾ 1.4301
⁽⁶⁾ 3.7165, also ELI
⁽⁷⁾ also as USP class VI, TSE-free

capillary

capillary	OD = 360 µm
	ID = 150 µm
connection	adapter
	–
cell body	stainl. steel (8)
	–
	–
wetted	capillary
	–
	–
flow rate	2.5 ml/min
max. press.	200 bar
	–

⁽⁸⁾ only for clamping
–
–

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