INOR SR361 Value Monitor User Guide

USER INSTRUCTIONS
Limit Value Monitor
SR361

Read these instructions before using the product and retain for future information.

Before Startup

When operating the module, certain parts can carry dangerous voltage! Ignoring the warnings can lead to serious injury and/or cause damage!
The module should only be installed and put into operation by qualified staff. The staff must have studied the warnings in these operating instructions thoroughly.
The adjustment with the potentiometer on the front may only be carried out with a screwdriver which is securely insulated against the input voltage! Do not select ranges during operation.
In applications with high operating voltages sufficient distance and isolation as well as shock protection must be ensured.
Safe and trouble-free operation of this device can only be guaranteed if transport, storage and installation are carried out correctly and operation a maintenance are carried out with care.
During assembly and configuration, protective measures against electrostatic discharge (ESD) must be taken!

Short description

The Limit Value Monitor SR361 is used to monitor measured values in 0(4) … 20 mA and 0 … 10 V standard signal circuits. A transmitter supply +Us is provided for the operation of 2-wire transmitters. Two switching outputs can be configured simultaneously or independently of each other with the analog control electronics as MIN or MAX alarm in opencircuit or closed-circuit operation.
The monitoring states are indicated by yellow LEDs.
Two relay changeover contacts are available on the SR361. Input, power supply and the outputs are safely galvanically isolated from each other.

Functioning

The input signal will be compared with the set limit values. In case of overshooting or undershooting, the output relays react according to the set configuration.

Configuration

All control elements are accessible by unlocking the front cover at the lower recess. The switching points and the switching hysteresis can be adjusted with potentiometers. With the DIP switch the configuration is set according to the following table:

Factory settings: all switches in position OFF
After configuration switch points and, if required, the hysteresis will be adjusted with the potentiometers on the front:

1. Set potentiometer HYST to 0 % (left stop)
2. Apply an input signal equal to the desired switch-on value to the input
3. Set the switching point with potentiometer SET 1 (or SET 2 if applicable) so that the LED just light up Additional setting for operation with switching hysteresis:
4. Set potentiometer HYST to maximum (right stop)
5. Apply an input signal equal to the desired switch-off value to the input
6. Turn potentiometer HYST stepwise towards 0 % until the LED switches off
7. Check switch-on and switch-off point and readjust if necessary The hysteresis setting affects both outputs and can also be set directly according to the potentiometer scaling 0…6 % or 0…60 %, one division mark corresponds to 1 % or 10 %.

Note: The LEDs indicate the monitoring states (LED lights up when  the input signal fulfills the switching condition). The LEDs indicate notthe switching states of the relays, because these may be inverted due to open-circuit or closed-circuit operation.

Mounting, Electrical Connection

The module is mounted on standard 35 mm DIN rail.

Terminal assignments

1.1 Power supply +
1.2 Power supply –| 2.1 Input Voltage +
2.2 Transmitter Power Supply +Us
3.1 Input Current +
3.2 Input –
---|---
OUTPUT 1
4.1 COM
4.2 NO
5.1 NC| OUTPUT 2
6.1 COM
6.2 NO
5.2 NC

Technical Data

supply voltage) current limited ≤ 30 mA
Switch point setting| 0 … 110 % of input range with 12-turn potentiometer, independently adjustable for each switching output
Hysteresis setting| 0 … 6 % or 0 … 60 % of input range
Output| 2 SPDT Relays
AC: 250 V, max. 6 A, max. 1500 VA
DC: 250 V / 0.2 A, 115 V / 0.3 A, 30 V / 6 A
Recommended minimum load 300 mW / 5 V / 5 mA
Status indication|    one yellow LED per switching output
Response time|    approx. 20 ms
General data
Set point error| < 0.2 % full scale
Temperature coefficient1)| < 150 ppm/K
Test voltage| 4 kV, 50 Hz, input against power supply against both outputs; 3 kV, 50 Hz, output 1 against output 2
Working voltage (Basic insulation) 2)| 1000 V AC/DC for overvoltage category II and 600 V AC/DC for overvoltage category III according to DIN EN 61010 with pollution degree 2 between input, power supply and both switching outputs.
Furthermore 300 V AC/DC between output 1 and output 2.
Protection against dangerous body currents 2)| Protective separation according to DIN EN 61140 by reinforced insulation according to DIN EN 61010 up to 600 V AC/DC at overvoltage category II and 300 V AC/DC at overvoltage category III at pollution degree 2 between input, power supply and both switching outputs. Furthermore 300 V AC/DC between output 1 and output 2.
Power supply| 24 V DC, ± 15 %, 1.0 W
Ambient temperature| Operation -20 °C to + 60 °C (-4 to +140 °F)
Transport and storage -35 °C to + 85 °C (-31 to +185 °F)
EMC 3)| EN 61326 -1
MTBF| 575 years acc. to SN 29500, stationary continuous 40 °C, Total FIT 198 operating, T amb.
Construction| 12.5 mm (0,5″) housing, protection class: IP 20 mounting on 35 mm DIN rail acc. to EN 60715
Weight| approx. 70 g

1. Average TC in specified operating temperature range
2. As far as relevant the standards and rules mentioned above are considered by development and production of our devices. In addition, relevant assembly rules are to be considered by installation of our devices in other equipment. For applications with high working voltages, take measures to prevent accidental contact and make sure that there is sufficient distance or insulation between adjacent situated devices.
3. Minor deviations possible during interference

Block diagram

Dimensions

Connection data

Connection| Screw terminals
(plus-minus clamp screws)
---|---
Wire cross-section
solid wire, fine-stranded or ferruled| 0.05 mm2 – 2.5 mm2
AWG 30 – 14
Stripped length| 7 mm / 0.3 in
Screw terminal torque| 0.5 Nm / 4.5 lbf in

Order Information

LIMITED WARRANTY

INOR Process AB hereby warrants that the Product will be free from defects in materials or workmanship for a period of five (5) years from the date of delivery (”Limited Warranty”). This LimitedWarranty is limited to repair or replacement at INOR’s option andis effective only for the first end-user of the Product. This Limited Warranty applies only if the Product:

1. is installed according to the instructions furnished by INOR;
2.  is connected to a proper power supply;
3.  is not misused or abused; and
4. there is no evidence of tampering, mishandling, neglect, accidental damage, modification or repair without the approval of INOR or damage done to the Product by anyone other than INOR.

Delivery conditions are based upon the „GENERAL CONDITIONS FOR THE SUPPLY OF PRODUCTS AND SERVICES OF THE ELECTRICAL AND ELECTRONICS INDUSTRY“
Subject to change!

INOR Process AB, PO Box 9125, SE-200 39 Malmö, Sweden, Phone: +46 40 312 560, Fax: +46 40 312 570,
E-mail: support@inor.se
INOR Transmitter OY, Tuupakantie 3 01740 Vantaa, Finland, Phone:+358 10 421 7900, Fax: +358 10 421 7901,
E-mail: myynti@inor.fi
INOR Transmitter GmbH, Am See 24, D-47279 Duisburg, Germany, Phone: +49-203 7382 762 0, Fax: +49-203 7382
762 2, E-mail: info@inor-gmbh.de
KROHNE Temperature Division INOR , 55 Cherry Hill Drive, Beverly, MA 01915, United States, Phone: +1 978 826
6900, Fax: +1 978 535 1720, E-mail: inor-info@krohne.com
© INOR 01/2024 – 4010199101 – MA SR361 R01 en /de – All information subject to change without notice.

References

• GmbH.de
• Start - INOR

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