Photometers and Densitometers

Photometers and densitometers are precision instruments used for analyzing light and optical density in various scientific and industrial applications.

Photometers measure electromagnetic radiation across the ultraviolet, visible, and infrared spectra, converting light into electrical signals using a photoresistor, photodiode, or photomultiplier. These instruments are used to assess light intensity, spectral distribution, and illumination levels in fields such as photography, cinematography, architectural lighting, and plant growth studies. Scientific applications include measuring UV light for phototherapy, evaluating sterilization lamp emissions, and analyzing light sources for material hardening processes. Many photometers are portable and can provide readings in units such as lux, foot-candles, and candelas.

Densitometers, on the other hand, measure the optical density of photographic films, semitransparent materials, or reflective surfaces by analyzing the light absorption of a sample. These devices work by directing light at a photoelectric sensor and determining density based on variations in light transmission. Modern densitometers incorporate advanced electronic circuitry for improved accuracy and reliability.

Both photometers and densitometers play crucial roles in laboratories, industrial settings, and research, ensuring precise light and optical density measurements for various applications.

Photometers and Densitometers

Personal multi-channel bioreactor RTS-8 Plus

RTS-8 plus is a personal bioreactor that utilizes patented Reverse-Spin® technology that applies non-invasive, mechanically driven, low energy consumption, innovative type of agitation where cell suspension is mixed by the single-use falcon bioreactor tube rotation around its axis with a change of direction of rotation motion resulting in highly efficient mixing and oxygenation for aerobic cultivation. Combined with a near-infrared, fluorescence and luminescence measurement systems, it is possible to register cell growth kinetics, pH and O2 non-invasively in real time. For pH and O2, innovative single-use sensor spots are used inside the tubes.

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Specifications

Light source	Laser
Measurement wavelength (λ)	850 ± 15 nm
Measurement range	0-100 OD600
E.coli factory calibration measurement range	0-50 OD600
S.cerevisiae factory calibration measurement range	0-75 OD600
Achievable user calibration measurement error (range 0.1-6 OD600)	± 0.3
Achievable user calibration measurement error (range 6-50 OD600)	≤ 5%
Achievable user calibration measurement error (range 50-75 OD600)	≤ 10%
Measurement periodicity per hour	1-60
Temperature setting range	+4°C ... +60°C
Temperature control range	+15 °C below ambient ... +60 °C
Temperature stability	±0.3 °C
Sample temperature accuracy (20°C – 37°C)	±1 °C
Tube sockets	8
Sample working volume range	3–50 ml
Speed control range	150–2700 rpm
Reverse spin time setting range 150-250 rpm	0 s
Reverse spin time setting range 250–300 rpm	2-60 s
Reverse spin time setting range 300–2700 rpm	0-60 s
Display	LCD
Minimum PC requirements	Intel/AMD Processor, 1 GB RAM, Windows Vista/7/8/8.1/10/11, USB 2.0 port
Overall dimensions (W×D×H)	350 x 690 x 300 mm
Weight	20 kg
Nominal operating voltage	AC 230 V, 50 Hz
Power consumption	3.15 A / 500 W
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02 sensor	+
Range	0-100%
Accuracy	±0.05% O2 at 0.2%, ±0.4% O2 at 20.9%
Drift	<0.03% O2 within 30 days
Temperature range	up to 40°C
Response time (t90)	<6 s
Storage stability	18 months
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pH sensor	+
Range	4.0 - 8.5 pH
Accuracy	±0.10 pH at pH 7
Drift	<0.005 pH per day
Temperature range	up to 40°C
Response time (t90)	<120 s
Storage stability	18 months

Photometers and Densitometers

Personal multi-channel bioreactor RTS-8

RTS-8 is a personal bioreactor that utilizes patented Reverse-Spin® technology that applies non-invasive, mechanically driven, low energy consumption, innovative type of agitation where cell suspension is mixed by the single-use falcon bioreactor tube rotation around its axis with a change of direction of rotation motion resulting in highly efficient mixing and oxygenation for aerobic cultivation. Combined with a near-infrared optical system it is possible to register cell growth kinetics non-invasively in real time.

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Specifications

Light source	Laser
Measurement wavelength (λ)	850 ± 15 nm
Measurement range	0-100 OD600
E.coli factory calibration measurement range	0-50 OD600
S.cerevisiae factory calibration measurement range	0-75 OD600
Achievable user calibration measurement error (range 0.1-6 OD600)	± 0.3
Achievable user calibration measurement error (range 6-50 OD600)	≤ 5%
Achievable user calibration measurement error (range 50-75 OD600)	≤ 10%
Measurement periodicity per hour	1-60
Temperature setting range	+4°C ... +60°C
Temperature control range	+15 °C below ambient ... +60 °C
Temperature stability	±0.3 °C
Sample temperature accuracy (20°C – 37°C)	±1 °C
Tube sockets	8
Sample working volume range	3–50 ml
Speed control range	150–2700 rpm
Reverse spin time setting range 150-250 rpm	0 s
Reverse spin time setting range 250–300 rpm	2-60 s
Reverse spin time setting range 300–2700 rpm	0-60 s
Display	LCD
Minimum PC requirements	Intel/AMD Processor, 1 GB RAM, Windows Vista/7/8/8.1/10/11, USB 2.0 port
Overall dimensions (W×D×H)	350 x 690 x 300 mm
Weight	20 kg
Nominal operating voltage	AC 230 V, 50 Hz
Power consumption	3.15 A / 500 W

ELISA Line

Verification instrument OD Plate

OD Plate is the measurement verification instrument for microplate photometer MPP-96 HiPo.

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Specifications

Nominal optical density levels	0.3; 0.6; 1.0; 2.0; 3.0; 4.0 OD (±0.1 OD)
Available verification wavelengths range	400 - 700 nm
Overall dimensions (W×D×H)	86 x 128 x 12 mm
Weight	0.3 kg

Photometers and Densitometers

Personal bioreactor RTS-1C

RTS-1C is personal bioreactor which utilize patented Reverse-Spin® technology that applies non-invasive, mechanically driven, low energy consumption, innovative type of agitation where cell suspension is mixed by the singleuse falcon bioreactor tube rotation around its axis with a change of direction of rotation motion resulting in highly efficient mixing and oxygenation for aerobic cultivation. Combined with a near-infrared optical system it is possible to register cell growth kinetics non-invasively in real time.

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Specifications

Measurement range	0–10 OD at 10–20ml volume (0–19 OD λ600 nm equivalent) 0–8 OD at 20–30ml volume (0–15.2 OD λ600 nm equivalent)
Measurement precision	±0.3 OD
Light source	NIR Light diode
Measurement wavelength (λ)	850 nm
Measurement periodicity per hour	1–60
Cultural media volume	10–30 ml
Temperature setting range	+4°C ... +70°C
Temperature control range	15°C below ambient ... +70°C
Temperature stability	±0.1°C
Display	LCD
Speed control range	50–2,000 rpm
Max. number of units connected to the software	10
Type of tube for aerobic cultivation	50 ml tube with membrane filter (TubeSpin® Bioreactor 50, TPP®)*
Type of tube for anaerobic cultivation	50 ml tube with membrane filter (TubeSpin® Bioreactor 50, TPP®)* * — it is also possible to use other manufacturer tubes of the same type, e.g. Corning® 50ml Mini Bioreactor, but the device rotor must be modified. It is possible to request this modif.
Minimum PC requirements	Intel/AMD Processor, 1 GB RAM Windows Vista/7/8/8.1/10/11, USB 2.0 port
Optimal PC requirements	Intel/AMD Processor, 3 GB RAM Windows Vista/7/8/8.1/10/11, USB 2.0 port
Overall dimensions (W×D×H)	130 × 212 × 200 mm
Weight	2.2 kg
Input current/power consumption	12 V, 5 A / 60 W
External power supply	Input AC 100–240 V, 50/60 Hz; Output DC 12 V

Photometers and Densitometers

Personal bioreactor RTS-1

RTS-1 is personal bioreactor which utilize patented Reverse-Spin® technology that applies non-invasive, mechanically driven, low energy consumption, innovative type of agitation where cell suspension is mixed by the singleuse falcon bioreactor tube rotation around its axis with a change of direction of rotation motion resulting in highly efficient mixing and oxygenation for aerobic cultivation. Combined with a near-infrared optical system it is possible to register cell growth kinetics non-invasively in real time.

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Specifications

Measurement range	0–10 OD at 10–20ml volume (0–19 OD λ600 nm equivalent) 0–8 OD at 20–30ml volume (0–15.2 OD λ600 nm equivalent)
Measurement precision	±0.3 OD
Light source	NIR Light diode
Measurement wavelength (λ)	850 nm
Measurement periodicity per hour	1–60
Cultural media volume	10–30 ml
Temperature setting range	+25°C ... +70°C
Temperature control range	5°C above ambient ... +70°C
Temperature stability	±0.1°C
Display	LCD
Speed control range	50–2,000 rpm
Max. number of units connected to the software	10
Type of tube for aerobic cultivation	50 ml tube with membrane filter (TubeSpin® Bioreactor 50, TPP®)*
Type of tube for anaerobic cultivation	50 ml tube with membrane filter (TubeSpin® Bioreactor 50, TPP®)* * — it is also possible to use other manufacturer tubes of the same type, e.g. Corning® 50ml Mini Bioreactor, but the device rotor must be modified. It is possible to request this modif.
Minimum PC requirements	Intel/AMD Processor, 1 GB RAM Windows Vista/7/8/8.1/10/11, USB 2.0 port
Optimal PC requirements	Intel/AMD Processor, 3 GB RAM Windows Vista/7/8/8.1/10/11, USB 2.0 port
Overall dimensions (W×D×H)	130 × 212 × 200 mm
Weight	1.7 kg
Input current/power consumption	12 V, 3.3 A / 40 W
External power supply	Input AC 100–240 V, 50/60 Hz; Output DC 12 V

Photometers and Densitometers

Photometer DEN-600

DEN-600 is a compact, portable, rechargeable battery powered photometer. DEN-600 comprises of 600 nm wavelength optical system, which enables to apply - 1) OD600 method that estimated total number of cells, 2) McFarland (McF) turbidity measurement method, 3) Bradford protein assay method for protein concentration measurement, 4) other methods that can be adjusted or optimized using 600 nm wavelength.

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Specifications

Light source	LED
Measurement wavelength (λ)	600 nm ±10 nm
Photodetector	Silicone photodiode
Vessel type	Cuvettes, round bottom tubes, falcon tubes
Measurement modes	Absorbance (Abs), McFarland (McF)
Measurement range	0 – 3.0 Abs \| 0 - 16.00 McF
Resolution	0.001 Abs \| 0.01 McF
Accuracy	±0.006 @ 1 Abs \| ±0.1 @ 0-8 McF
Repeatability	±0.003 @ 1 Abs \| ±0.05 @ 0-8 McF
Battery type	Li-Ion
PC system requirements:	Intel/AMD Processor, 1 GB RAM, Windows Vista/7/8/10/11, USB
Overall dimensions (W×D×H)	120 × 145 × 65 mm
Weight	0.5 kg
Input current/power consumption	12 V, 0.2 A / 2.5 W
External power supply	Input AC 100–240 V, 50/60 Hz; Output DC 12 V

ELISA Line

Microplate Photometer HiPo MPP-96

Microplate Photometer HiPo MPP-96 is a compact tabletop device for measuring the results of ELISA and microbiological studies in 96-well microplates. Photometer is controlled and outputs data via computer. The device is supplied with specialized software QuantAssay.

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Specifications

Detection mode	Absorbance
Light source	LED, self-calibrating
Photodetector	8 silicon photodiodes
Plate type	96-well microplates (including strip-well microplates)
Reading speed	5-8 s per wavelength
Measurement modes	Endpoint, kinetic and multi-label measurements
Measurement channels	8
Reference channel	1
Measurement range	0 – 4.3* OD
Resolution	0.0001 OD
Wavelength range	400 – 700 nm
Wavelength selection	up to 8** filters on wheel, standard filters 405, 450, 492 and 620 nm
Shaking speed control range	4 amplitudes, 4 speeds
Software	QuantAssay Reader is compatible with IDEXX xChekPlus software
PC system requirements:	Intel/AMD Processor, 1 GB RAM, Windows Vista/7/8/10/11, USB
Overall dimensions (W×D×H)	140 х 300 х 130 mm
Weight	4.6 kg
Input current/power consumption	12 V, 5 A / 60 W
External power supply	Input AC 100–240 V, 50/60 Hz; Output DC 12 V

Photometers and Densitometers

Densitometer DEN-1B

Densitometer is designed for measurement of cell suspension's turbidity in the range of 0.0–6.0 McFarland units (0 – 180×107 cells/ml).

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Specifications

Measurement range	0.00–15.00 McF
Display resolution	0.01 McF
Light source	LED
Measurement wavelength (λ)	λ = 565 ±15 nm
Accuracy (0.0–6.0 McF)	±3%
Measurement time	1 s
Sample volume	not less than 2 ml
Tube external diameter	12 mm, 16 mm (using A-12, A-16 adapter) or 18 mm (without adapter)
Possibility to restore factory calibration settings	+
Display	LCD
Independent power supply	3 × AA batteries
Overall dimensions (W×D×H)	165 × 115 × 75 mm
Weight	0.7 kg
Input current/power consumption	12 V, 7 mA / 0.1 W
External power supply	Input AC 100–240 V, 50/60 Hz; Output DC 12 V
Standard set	External power supply, A-16