GESTRA LRR 1-52 Installation Instructions

7
The operating & display unit URB 50 and the conductivity controller LRR 1-52, LRR 1-53 form a
functional unit featuring the following properties:
Conductivity controller LRR 1-52 LRR 1-53
Conductivity monitoring using conductivity electrode LRG 1.-.. and
separate resistance thermometer Pt 100 (TRG 5-..) or conductivity
electrode LRG 16-9 with integrated resistance thermometer.
X
Evaluation of temperature-compensated current signal of conductivity
transmitter LRGT 1.-..
X
3-position stepping controller with proportional-plus-integral control action
(PI controller) and control of an electrically actuated continuous blow-
down valve
X X
Indication of MAX conductivity limit (conductivity limiter)
X X
Indication of MIN conductivity limit or control of intermittent blowdown
valve
X X
Indication of valve position if continuous blowdown valve is provided with
a potentiometer
X X
Actual value output 4-20 mA
X X
Operating & display unit
URB 50
Indication of actual value (indicated in percent and as bar graph)
X
Indication of valve position (indicated in percent and as bar graph)
X
Setting of measuring range
X
Indication/adjustment of control parameters and settings
X
Trend record
X
Indication and listing of errors, alarms and warnings
X
Test of MIN / MAX output relays and/or control of intermittent blowdown valve
X
Manual/automatic operation
X
Password protection
X
Function
Important Notes - continued -

GESTRA LRR 1-52 Specifications

General

Brand	GESTRA
Model	LRR 1-52
Category	Controller
Language	English