Gestra LRR1-53 Controller

Conductivity Controller
LRR 1-52, LRR 1-53
Dimensions 147
LRR 1-53 conductivity controller only Connection of conductivity transmitter
1 analogue input 4-20 mA, e.g. for LRGT 1.-.. conductivity transmitter, 2-pole with shield.
107
Technical data
Beginning of measuring range SinL 0.0 - 0.5 - 100.0 μS/cm, adjustable.
136
52
8
Visual Display and Operating Unit
URB 55 Technical data Supply voltage 24 VDC +/– 20%
Fuse Internal, automatic
96
End of measuring range SinH 20.0 - 100.0 - 200.0 - 500.0 -1000.0 - 2000.0 - 3000.0
- 5000.0 - 6000.0 - 7000.0 - 10000.0 μS/cm, adjustable.
i Fig. 4
Electrical connection, URB 55 Back of unit, location of connectors
j
Power consumption Max. 14.4 W
CEP
Supply voltage connection
k
l +24V #
Input/output Interface for data exchange.
L+
(L–) M Common
User interface 5" touch panel 800x480px with LED illumination Dimensions
Front panel 147 x 107 mm Switch panel cut-out 136 x 96 mm Depth 52 + 8 mm
Electrical connection 1 3-pole connector, 1 9-pole D-sub connector.
IP rating Front: IP 66 to EN 60529 Back: IP 20 to EN 60529 Weight Approx. 1.0 kg
Service temperature 0 ° ... 60 °C Transport temperature –20 ... +80 °C (< 100 hours), only switch on after a
defrosting period of 24 hours.
Storage temperature –20 ... +70 °C, only switch on after a defrosting period of
24 hours.
Relative humidity 5-85 %, non-condensing
Key
i j k l
Cut-out in control cabinet door 136 x 96 mm 9-pole D-sub connector for data line
3-pole connector for supply voltage 24 V DC Connection for supply voltage 24 V DC,
pin assignment
CEP Central earthing point (CEP) in control cabinet Directives and Standards
For more information on the conformity of the equipment as well as applied Directives and Standards please refer to
our Declaration of Conformity and associated certificates and/or approvals.
Please note our general terms of business.
GESTRA AG Münchener Straße 77, 28215 Bremen, Germany Tel. +49 421 3503-0, Fax +49 421 3503-393
e-mail [email protected], Web www.gestra.com 850653-01/09-2024cm (809125-01) · GESTRA AG · Bremen
1 2 3
L+ M (L–)
Pin assignment of data line for LRR 1-52, LRR 1-53 - URB 55
j
PIN 2
Data_L
PIN 7
Data_H
Fig. 5
How to order and specify, LRR 1-5x Conductivity controller type LRR 1-52
GESTRA SPECTORmodule – Touch Continuous conductivity controller with
MIN and MAX alarm Input: 1 input for conductivity electrode 1 input for PT 100 sensor
Output: 1 switchable actual value/manipulated variable 4-20mA 2 volt-free changeover contacts for MIN/MAX alarm
2 volt-free changeover contacts for valve actuation incl.
1 separate URB 55 operating unit with touch panel Supply voltage: 24 V DC, 14.4 W
Conductivity controller type LRR 1-53
GESTRA SPECTORmodule – Touch Continuous conductivity controller with
MIN and MAX alarm Input: 1 input for LRGT conductivity transmitter (4-20 mA)
Output: 1 switchable actual value/manipulated variable 4-20mA 2 volt-free changeover contacts for MIN/MAX alarm
2 volt-free changeover contacts for valve actuation incl.
1 separate URB 55 operating unit with touch panel Supply voltage: 24 V DC, 14.4 W
Important notes The LRR 1-52, LRR 1-53 conductivity controller is clipped
onto a support rail in the control cabinet. The URB 55 visual display and operating unit is inserted into a cut-out in the
control cabinet door.
The conductivity controller and operating unit are both supplied with 24 V DC and the fuses are internal (URB) and
external semi-delay (LRR 1-5.., M0.5A).
To prevent the contacts from welding together, protect the output contacts with an external slow-blow T2.5A or T1A fuse
(TRD 604, 72 hours of operation).
Switching off inductive loads produces surges that can severely impair the function of control systems. Connected
inductive loads must therefore have interference suppression (RC combination) as per the manufacturer's specifications.
To connect the LRG 12-1, LRG 16-4, LRG 17-1 or LRG 19-1 conductivity electrode, please use a shielded, multi-core
control cable with a minimum conductor size of 0.5 mm2, e.g. LiYCY 3 x 0.5 mm2.
To connect the LRG 16-9 conductivity electrode, a pre-wired control cable in various lengths is available as an accessory.
If you are not using the pre-wired control cable, use a 5-core shielded control cable as a connecting cable, e.g. LiYCY 5 x
0.5 mm2. In addition, connect a shielded socket to the control cable at the electrode end.
The max. cable length between the conductivity electrode and controller is 30 m, or max. 10 m with a
conductivity of 1-10 μS/cm.
Route connecting cables between items of equipment separately from power lines.
If used as a conductivity limiter, the LRR 1-52, LRR 1-53 conductivity controller does not interlock automatically when
the MAX limit is exceeded.
If the installation requires a lockout function, this must be implemented in the downstream (safety) circuit. This circuit
must conform to the requirements of EN 50156.