4690 Series
Turbidity systems 11 Specification
38 IM/4690–EN Rev. A
Analyzer
Measured value
5-digit x 7-segment backlit LCD
Information
16-character, single line, dot matrix, backlit LCD
Units of measurement
All models: NTU and FNU
mg/l and ppm for models high range models
Accuracy
±0.2 % of reading, ±1 digit
Linearity
±0.1 % FSD
Auto-clean timing (7998011, 7998012)
Programmable 15 min, 30 min, 45 min or 1 hour up to
24 hours in 1 hour increments
Environmental Data
Operating temperature limits
–20...55 °C (–4...131 °F)
Storage temperature limits
–25...55 °C (–13...131 °F)
Operating humidity limits
Up to 95 % RH non-condensing
Power Supply
Voltage requirements
100...130 V, 200...260 V, 50/60 Hz
Power consumption
< 6 VA AC
Error due to power supply variation
Less than 0.1 % for +6 % –20 % variation from nominal supply
Insulation
Mains to earth (line to ground) 2 kV RMS
Relay Outputs and Set Points
No. of relays
2
Relay contacts
Single pole changeover
Rating 250 V AC 250 V DC max.
3 A AC, 3 A DC max.
Loading (non-inductive) 750 VA 30 W max.
(inductive) 750 VA 3 W max.
Insulation
2 kV RMS contacts to earth (ground)
No. of set points
2
Set point adjustment
Programmable
Set point hysteresis
±1 % fixed
Local set point annunciation
Red LED
Retransmission
No. of retransmission signals
One fully isolated programmable 0...10 mA, 0...20 mA or 4...20 mA
Optional second current output
Accuracy
±0.25 % FSD ±0.5 % reading
Resolution
0.1 % at 10 A, 0.05 % at 20 mA
Max. load resistance
750 (20 A max.)
Mechanical Data
Model 4690/500
Model 4695/500
DS/4690–EN Rev. A
Wall-mounting
Protection IP66/NEMA4X
Dimensions 160 mm (6.30 in.) wide x 214 mm (8.43 in.) high x
68 mm (2.68 in.) deep
Weight 2 kg (4½ lb)
Panel-mounting (¼ DIN)
Protection IP66/NEMA4X front
Dimensions 96 mm (3.78 in.) wide x 96 mm (3.78 in.) high x
191 mm (7.52 in.) deep
Weight 1.5 kg (3¼ lb)
Panel cut-out: mm x mm
( in. x in.)
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