Digox 602 Silica

Technical Specification

Device	Digox 602 Silica
Measuring range	0,5 - 5 000 ppb Si02
Photometer	Accurate photometer with sample temperature regulation
Display	Graphic display, measured value for each channel with time and operating conditions
Accuracy	Max. {± 2% of the reading or ± 2 ppb} within the measuring range 0 - 100 ppb; Max {± 5% of the reading or ± 5 ppb} within the measuring range  > 100 ppb
Limit of determination	0,5 ppb
Repeatability	Max. {± 2% of the reading or ± 2 ppb} within the measuring range 0 - 100 ppb; Max {± 5% of the reading or ± 5 ppb} within the measuring range  > 100 ppb
Calibration	Three-point calibration is performed using micro-dosing pumps;  water deionized using an integrated ion exchanger for the zero point and standard
Agents	2 x 2.0 l and 2 x 1.0 l of the agent, 0.25 l of the standard solution
Data interface	Profibus DP-V0 (optional)
Binary inputs	6x binary inputs for external (dry) contacts for hiding channels and for remote control
Relay outputs	Two relays (1x for warning and 1x for alarms), 250 VAC / 3 A, max. 24 VDC / 3 A
Operation	Password protection for two levels, entering threshold values, communication parameters and measuring cycles
Analogue outputs	Up to 6 analogue outputs 4… 20 mA ± <0.025 mA, max. load resistance of 500 Ω; max. 2 analogue outputs, when the Profibus interface is installed
Duration of the analysis	Max. 15 min. at sample temperature of  25 - 50 ° C
Ambient temperature	+10 - +50 ° C, storage and transport 0 - 50 ° C, relative humidity 10 - 95%
Sample condition	1-6 input channels with the application for maintaining constant pressure, another laboratory sample, determination of the blind value using the filter
Power source	100 - 240 VAC 50/60 Hz, 70 VA, battery-free saving of parameters, no loss of data after power interruption, data stored in the memory
Standard compliance	In accordance with CE and CB according to EN 61010-1, EN 61326 -1 and -2 -3, EN 50581 air treatment
Protection system	IP 65 (electronic unit)
Weight	Max. 38 kg (6-channel device including all consumables)
Dimensions	850 x 450 x 250 mm (HxWxL)
Space required for assembly	1050 x 550 x 500 mm ((height x width x depth)

Main Functions

• Very low reagent consumption, one set of reagents (approximately 3 liters) can withstand at least 5000 measurements or
• 8 weeks at the highest measurement frequency
• Automatic recalibration, adjustable measurement interval
• Individually adjustable measurement sequence and frequency for each channel. The time frame can be adjusted from the minimum measurement time to a measurement interval of 96 hours
• Short measuring sequence <15 min. (at the sample temperature of 25 - 50 ° C)
• Determination of the actual value of the empty chemical while determining the zero point
• Highly accurate sample temperature regulation
• Galvanically isolated signal outputs
• Pressure regulator and easy to clean channel pre-filter
• Built-in sequencer for up to 6 sampling channels
• Additional measurement of the "grab" sample in the bottle
• Profibus DP interface (optional)
• Possibility of remote control using 6 external binary contacts (calibration commands, channel selection, hide channel, grab sample)