B + B Thermo-Technik SENSW-GEH230V, SENSW-MOD12V, SENSW-MOD24V User guide

INSTRUCTION MANUAL

Universal sensor switching module
230 V version with Housing

0141 0316-142 September 2011

Technical changes reserved

Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com 1 / 17

B+B Thermo-Technik GmbH | Heinrich-Hertz-Str. 4 | D-78166 Donaueschingen

INSTRUCTION MANUAL

Universal sensor switching module
230 V version with Housing

Contents

1. General dangers and precautions 3

1.1. Instructions regarding documentation 3

1.2. Safety instructions 3

2. Description 4

2.1.Functional description 4

2.2. Range of available probes 5

2.2.1. Humidity probe 5

2.2.2. Conductance probe 5

2.2.3. Light intensity probe 5

3. Technical data 6

4. Ordering information 6

5. Assembly, adjustment and configuration 7

5.1. Electrical connection 7

5.1.1. Safety instructions 7

5.1.2. Probes 7

5.2. Configuration 7

5.3. Adjustment of switching point 7

5.4. Adjustment of time delay 7

5.4.1. Operating voltage 8

5.4.2. Load circuit 8

6. Technical appendix 9

6.1. General instructions 9

6.2. Switching input 9

6.3. Impedance input 11

6.4. Analog input 13

6.5. Time delay switch 16

6.6. Relay 16

7. Guarantee 17

7.1. Repair and calibration service 17

0141 0316-142 September 2011

Technical changes reserved

Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com 2 / 17

B+B Thermo-Technik GmbH | Heinrich-Hertz-Str. 4 | D-78166 Donaueschingen

INSTRUCTION MANUAL

Please carefully read the following instructions before putting into operation! The symbols used in the operating manual are

to

This symbol indicates likely danger for persons, material or environment. The information provided in the

associated text should

This symbol refers to important application notes and tips, which are necessary for successful working and should to be

Universal sensor switching module
230 V version with Housing

1. General dangers and precautions

1.1. Instructions regarding documentation

make you careful, before hand, regarding safety considerations and dangers. But all these symbols cannot substitute the text of
the associated safety instructions in any way. Therefore, the instructions should also be always read completely!

be duly followed to avoid any kind of risk.

absolutely followed to ensure good results.

1.2. Safety instructions

Please read these instructions, carefully and completely, before putting the device into operation. Please also comply and follow the safety
instructions, specially the safety regulations related to the devices being operated on mains supply.
The product should be installed and used only for the intended applications as described in these instructions. Any other application is not
advised and shall lead to loss of guarantee and exclusion from liability. This also applies to any changes or other modifications carried out on
the device by the user.
Defective safety devices should be replaced with same type of items in respect of trip current rating, tripping characteristics, and mechanical
fitment dimensions. Bypassing protections lead to a considerable safety risk and are not allowed under any circumstances.
The connection terminals can be wired to mains voltage. Contact with live parts lead to fatal dangers. The mounting and maintenance
operations should be carried out by only trained personnel, who are authorised on the basis of technical training in this field. The applicable
safety regulations should be followed. The switching device must be assembled in a switchgear cabinet or a fully closed plastic housing.
Mounting and servicing operation should be carried out only after switching off the voltage.
The product is not meant for controlling electrical systems, which perform safety related functions. In normal operation also, there is always a
danger of malfunctioning due to failure of any component or any other disturbance. The user has to ensure that there are no consequential
damages due to malfunctioning or undefined switching status of the relay. This is all the more possible, if heavy loads like heaters or motors
are triggered with the relays.

0141 0316-142 September 2011

Technical changes reserved

Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com 3 / 17

B+B Thermo-Technik GmbH | Heinrich-Hertz-Str. 4 | D-78166 Donaueschingen

INSTRUCTION MANUAL

Universal sensor switching module
230 V version with Housing

2. Description

2.1. Functional description

The universal sensor-switching module is suitable as a two-point regulator for a wide variety of sensors and industrial probes. A suitable
sensor is connected at the input for sensing the parameter which is to be regulated. The relay mounted on the PCB gets triggered as per
limit settings done through a potentiometer.
For universal application, the device is provided with three different types of inputs, which are internally connected and can be used
individually or together:

• Input 1: A Schmitt-trigger input with high pass filter for switching sensors like Reed-contacts, alarm-circuits, pushbuttons, light barriers,

message contacts or motion alarm unit. Switch contacts, Open-collector outputs or sensors with binary voltage output 0/5 V can also be
connected at the input.

• Input 2: An AC-input for analog AC voltage impedance evaluation. This input is specifically meant for electrolytic sensors like

conductance probes and level indicators, humidity and dew formation sensors or water/leakage probes.

• Input 3: An universal, analog voltage or resistance input and also for industrial voltage and current signals (0..1 V/5 V/10 V, 0..20 mA,

etc.). This is also suitable for direct connection of resistive sensors like LDRs, NTCs or PTCs.
The three inputs can be used either separately or in combined form (i.e. internally wired or joined). The switching behaviour (active relay with
upper and lower limits) of each input can be separately configured with its relevant jumper connection.
The three inputs are brought out through the RJ12 socket, to which standard probes, which are available as accessories can be connected
or joined through soldering without much expenses. The voltage and resistance input (Input 3) is also additionally brought out through a 3­pin terminal strip.
In addition, the device is provided with a time delay switch, which can be configured over a wide range (approx. 10 sec to 10 min). It is
digitally configured with the help of a jumper connection.
The adjustment of limiting values and Hysteresis is done with three potentiometers. The condition of device is displayed with a total of 6
LEDs.
The high rating relay has a changeover contact. The NO contact of the relay can switch a load up to 230 V/5 A and is provided with a
varistor for surge suppression.

Scope of supply

The scope of supply is without probe. Standard probes are available as accessories. The scope of supply of 12 V/24 V model is in the form
of a PCB of size 95 x 75 mm without housing and operating panel.
The 230 V model is supplied in a housing (100 x 100 x 60 mm) with integrated power supply unit and operating panel.

0141 0316-142 September 2011

Technical changes reserved

Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com 4 / 17

B+B Thermo-Technik GmbH | Heinrich-Hertz-Str. 4 | D-78166 Donaueschingen

INSTRUCTION MANUAL

Universal sensor switching module
230 V version with Housing

2.2. Range of available probes

The probes described below are available as accessories. The probe is provided with a 1 m long connection cable, PG-threads for mounting
of housing and a ready made RJ12 plug connector. All commercial grade industrial probes with voltage and current output can also be
operated with the device.

2.2.1. Humidity probe

The measuring probe is meant for regulation of relative humidity in green houses, fields, sanitary rooms, and switchgear cabinets. The
integrated electrolytic humidity sensor inside the probe is protected with a hydrophobic sinter cap. The measuring range is right from 35..90
% RH and is not temperature compensated.

2.2.2. Conductance probe

The conductance probe is intended for monitoring of water quality (ion content), as a level switch or as a foam sensor. Measuring range is
right from approx. 10µS…30µS.

2.2.3. Light intensity probe

The weatherproof light intensity probe is suitable for both indoor and outdoor applications. The measuring range is right from 50..20000 Lux.
Typical areas of application are twilight switches or emergency lights.

0141 0316-142 September 2011

Technical changes reserved

Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com 5 / 17

B+B Thermo-Technik GmbH | Heinrich-Hertz-Str. 4 | D-78166 Donaueschingen

INSTRUCTION MANUAL

General

Operating voltage

230 VAC/5 VA max.

Operating voltage

12 V..15 V DC 65 mA max.

Operating voltage

22 V..28 V DC 45 mA max.

Time delay switch

10 sec to 11 min +/

-

20%

Relay

Changeover contact for resistive load

Surge suppression

Suppression with a Varistor VZ 05/390V

Dimensions

Type –

230 V (156530)

100 x 100 x 60mm

Sensors

DC

Impedance input

0..1/10/100 k

Ohm; configurable with jumper plugs

Voltage/Current input

0..1 V/10 V/20 mA, configurable with jumper plugs

AC Impedance input

Series impedance

10

k..50 k

Switching input

NC/NO or voltage signal 0/5

V

Swiching device an accessories

Ordering No.

Universal Switching module, PCB for 12 V DC

SENSW

-

MOD12V

Universal Switching module, PCB for 24 V DC

SENSW

-

MOD24V

Switching module 230V, in housing with operating panel

SENSW

-

GEH230V

Housing ET210F, unfinished

0209 0014

Probe with connection cable

Ordering No.

Conductance probe

SENSW

-

LWF

Space humidity probe

SENSW

-

RFF

Light intensity probe, weather proof

SENSW

-

LIF

Our delivery program is constantly updated. If

you require any special type of probe, please do send

your enquiry to us!

Universal sensor switching module
230 V version with Housing

3. Technical data

Type –230V (156530)

Type –MOD12V (156503)

Type –MOD24V (156517)

4. Ordering information

11 V..14 V AC 80 mA max. (without probe)

15 V..25 V AC 60 mA max. (without probe)

configurable with jumper plugs

NO contact rating 230V AC / 5A
NC contact rating 230V AC /2 A

Supply in plastic housing
Type –MOD (156503/17) PCB 95 x 75 x 30mm
Supply only as a PCB

Conductance 30µS..10 µS

0141 0316-142 September 2011

Technical changes reserved

Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com 6 / 17

B+B Thermo-Technik GmbH | Heinrich-Hertz-Str. 4 | D-78166 Donaueschingen