DR 2704 Double Beam Spectrophotometer UV/VIS

Parameter	DR-04WB	DR-06WB
Column	2 rows 4 holes	2 rows 6 holes
Temp. range	Rt+5~100℃
Temp. Resolution Ratio	0.1℃
Temp. Motion	±0.5℃
Temp. Uniformity	±1℃
Water sink	Stainless steel, surface electrolysis treatment
Outer shell	Cold rolled steel plate, surface electrostatic powder spray.
Heater	Stainless steel U-type heating tube
Power rating	1200 W
Temp. control mode	PID Controller
Timer	0 – 999 min（with timing function）
Timing function	Timing function, auto stop feature
Program	Optional: multi-section program control
Additional function	Deviation correction, menu key lock, power failure back-up, power-off parameter memory, PID-Tunable control
Sensor	Thermal resistor
Safety device	Over-temperature alarm, short-circuit protection.
Inner Chamber size(WLH)	305 x 305 x 130 mm	305 x 470 x 130 mm
Packing size (WLH)	415 x 415 x 275 mm	400 x 560 x 250 mm
Internal volume	12 L	18.6 L
Cover number per hole	∅120 mm
Power Supply 50/60Hz	220V, 50/60 Hz
Weight	6.5 kg	8 kg

Parameter	Specification	Parameter	Specification
Wavelength Range	190–1100 nm	Noise	≤0.2%T/3min (250/500nm, 0%T) ≤0.5%T/3min (250/500nm, 100%T)
Spectral Bandwidth	1 nm	Sample Compartment	2 Cell Holder (10mm Path length Cuvette)
Optical System	Double Beam, Blazed Holographic Grating (1200 lines/mm)	Detector	Silicon Photodiode
Wavelength Accuracy	±0.5 nm	Lamps	Tungsten Lamp & Deuterium Lamp (Pre-aligned)
Wavelength Repeatability	≤0.2 nm	Display	Graphic LCD (320×240 Dots)
Wavelength Setting	Auto, Resolution 0.1 nm	Keypad	30-key Alphanumeric Membrane Keypad
Photometric Range	0–200%T, −4–4A, 0–9999C	Output Port	USB Port
Photometric Accuracy	±0.002A (0–0.5A), ±0.003A (0.5–1A), ±0.3%T (0–100%T)	Power Requirements	AC~220V/50Hz
Photometric Repeatability	≤0.001A (0–0.5A), ≤0.002A (0.5–1A), ≤0.2%T (0–100%T)
Stray Light	≤0.05%T (220/360nm)
Scan Speed	High, Medium, Low. Max. 2000 nm/minute
Baseline Flatness	±0.0015A
Stability	±0.001A/h (500nm, 0A)

Parameters	Specifications
Temperature range	Lights Off: 5°C to 60°C; Light ON: 10°C to 60°C
Temperature controller	Digital PID controller with SV & PV values
Temperature accuracy	±1%
Humidity	50% to 90%
Humidity controller	Digital PID controller with SV & PV values
Humidity accuracy	±3%
Illumination	3 sides illumination with detachable LED lights(10000 LUX or 23000 LUX)
Light timer	24×7 weekly digital timer
Shelves	Stainless steel or chrome plated (Height adjustable)
Humidity system	SS boiler tank with immersion heater and automatic water replenishment by external tank
Safety	Audio / visual alarm for temperature deviation
Optional	Exterior made of stainless steel 304 / 316 White painted steel inner walls Door open alarm Plant growth racks UV lamp PLC with HMI interface Data logger with USB interface Password protection for controller Caster wheels
Power supply	220 Volts / 50 Hz

Temperature range	5°C to 60°C
Temperature accuracy	±0.2°C @37°C
Temperature controller	Dual display PID controller Display SV & PV Auto tuning feature
Temperature sensor	PT100
Inner chamber	SS 304
External cabinet	Powder coated GI sheet
Insulation	Glass wool
Door	Insulated door Mechanical latch/clamp Glass window
Heaters	Resistance wire heaters
Shelves	SS wire mesh (removable)
Air circulation	Motorized blower / Axial fan
Standard fittings	Mains on/off switch Load Indicator Fan on/off switch
Power supply	220 Volts 50Hz
Optional	– Calibration certificate – Data logger w/ USB – Interface thermal printer. – Inner chamber LED light.

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