3645 - 3655 Models
• LCD Display
• Automatic temperature compensation
• Set point values display
• HI/LO selectable limits
• Adjustable relay time delay
• 4/20 mA output
• Detachable terminal block
C 3645
E.Conductivity controller
Scale: 0/1999 μS
Option 091.1321: scale 0/199,9 μS
Option 091.1322: scale 0/19,99 mS
Input: 2-electrode E.C. cell 4-electrode E.C. cell
ATC: NTC 10K
Temperature coefficient: 2 %/°C
Specifications (3645 and 3655 models)
Display : LCD
Zero Adjustment : ± 15%
Slope Adjustment : ± 20%
Automatic Temperature Compensation: NTC 10K
(Pt100 for C 3655)
Output : 4/20 mA dc 300 ohm max
Relay contacts : SPDT 220 V 5 A resistive load
Hysterisis : ± 0.25%
Switching Time : < 0.5 s
Relay Time Delay : adjustable 0/40 s
Operating Temperature : 0/50 °C
Operating Humidity : 0/95% R.H. non-condensing
Power supply : 110/220 V ±10% 50/60 Hz 2 VA
Isolation : 4 kV (Iec 348)
Weight : 265 g
Dimensions : 105 x 95 x 90 mm (6 DIN Rail modules)
Mounting : DIN Rail (35 x 7.5 mm Rail)
Option 091.402 : 24 Vac power supply