Technical data
Supply voltage
24 VDC, + / –20 %
Fuse
external 0.5 A (semi-delay)
Power consumption
4W
Connection of conductivity electrode
1 input for conductivity electrode LRG 12-1, LRG 16-4, LRG 17-1 and LRG 19-1 (cell constant 1 cm-1),
3 poles with screen,
1 input for conductivity electrode
LRG 16-9 (cell constant 0.5 cm-1), with integrated resistance thermometer Pt 100, 5 poles with screen
Measuring voltage
0.8 Vss, pulse duty factor tv = 0.5, frequency 20-10000 Hz.
Measuring range
1 to 10,000 μS/cm at 25 °C or 1 to 5,000 ppm at 25 °C.
Correction factor CF
adjustable between 0.05 and 5,000, in increments of 0.001
Calibration function CAL
Facilitates correction factor setting by entering the conduc- tivity reading
Temperature coef cient tC
0.0 – 3.0 % per °C, adjustable in increments of 0.1
Reset hysteresis
MIN limit: + 3 % of the adjusted MIN limit, MAX limit: – 3 % of the adjusted MAX limit
Outputs
2 volt-free change-over contacts,
8 A 250 V AC / 30 V DC cos φ = 1.
Provide inductive loads with RC combinations according to manufacturer’s speci cation to ensure interference suppression.
Indicators and adjusters
1 rotary button with integrated pushbutton for parameter setting and testing MIN / MAX alarm
1 seven-segment LED display, four digits
2 red LEDs for MIN / MAX alarm,
1 four-pole code switch for con guration settings
Housing
Housing material: base: polycarbonate, black
Front: polycarbonate, grey.
Terminal strips separately detachable.
Fixing of housing: Mounting clip on supporting rail TH 35, EN 60715
Electrical safety
Pollution degree 2.
Protection
Housing: IP 40 to EN 60529
Terminal strip: IP 20 to EN 60529
with panel adaptor: IP 65 to EN 60529
Weight
approx. 0.2 kg
Ambient temperature
when system is switched on: 0 … 55 °C,
during operation: -10 … 55 °C
Transport temperature
–20 … +80 °C (< 100 hours), defrosting time of the de-energized equipment before it can be put into operation: 24 hours.
Storage temperature
–20 … +70 °C, defrosting time of the de-energized equipment before it can be put into operation: 24 hours.
Relative humidity
max. 95%, no moisture condensation
