GESTRA LRR 1-50 User Manual

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LRR 1-50, LRR 1-51 - USA - Installation & Operating Manual - 850702-01
LRR 1-50 only
Connecting a conductivity electrode
1
input for LRG 16-4 conductivity electrode (cell constant 1cm
-1
), 3-pole with shield, or
1 input for LRG 16-9 conductivity electrode (cell constant 0.5cm
-1
), with integrated resistance
thermometer Pt100, 3-pole with shield.
Measuring voltage
0.8 Vss, pulse duty factor tv = 0.5, frequency 20 – 10000Hz.
Measuring range
1 to 10000μS/cm at 77°F (25°C) or 1 to 5000ppm at 77°F (25°C).
Technical data
LRR 1-51 only
Connecting a conductivity transmitter
1 analog input 4-20mA, e.g., for the LRGT 1.-.. conductivity transmitter, 2-pole with
shield.
Lower end of measuring range SinL
0 - 0.25 - 25 - 50ppm (0 - 0.5 - 50 - 100µS/cm), adjustable.
Upper end of measuring range SinH
10 - 50 - 100 - 250 - 500 - 1000 - 1500 - 2500 - 3000 - 3500 - 5000 - 6000ppm
(20 - 100 - 200 - 500 -1000 - 2000 - 3000 - 5000 - 6000 - 7000 - 10000 - 12000μS/cm), adjustable.
LRR 1-50, LRR 1-51
Ambient temperature
at power-on 32° ... 131°F (0° … 55°C)
in operation 14° … 131°F (-10° … 55°C)
Transport temperature
-4° … 176°F (-20° … +80°C) (<100hours),
only switch on after a defrosting period of 24 hours.
Storage temperature
-4° … 158°F (-20° … +70°C), only switch on after a defrosting period of 24 hours.
Relative humidity
Max. 95%, non-condensing

GESTRA LRR 1-50 Specifications

General

Brand	GESTRA
Model	LRR 1-50
Category	Controller
Language	English