Limit Value Monitor DG 3202 / DG 3282 - Monitoring of Standard Signals with 2 Switching Outputs

Limit Value Monitor DG 3202 / DG 3282 – Monitoring of Standard Signals with 2 Switching Outputs

The Limit Value Monitors DG 3202 und DG 3282 are 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.

  • Easy configuration on front panel
    Operating mode switchable via DIP switch, switch point and hysteresis adjustable with potentiometer
  • Status indication by LED
    Easy monitoring and switching point adjustment
  • Relay changeover contacts with high power handling
    or fully isolated transistor switching outputs
  • True 4-port separation
    Protection against erroneous measurements due to parasitic voltages or ground loops
  • Protective Separation acc. to EN 61010
    Protects service personnel and downstream devices against impermissibly high voltage
  • High reliability and noise immunity
    No microprocessor, no integrated software
  • Extremely slim design
    12.5 mm slim housing for a simple and space saving DIN rail mounting
  • 5 Years Warranty
    Defects occurring within 5 years from delivery date shall be remedied free of charge at our plant
Datasheet
User Manual
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Two switching outputs can be configured simul­taneously or indepen­dently of each other with the analog control electronics as MIN or MAX alarm in open-circuit or closed-circuit operation.

All setting elements are located behind the openable front cover and can also be operated when the unit is mounted. The switching points and the switching hysteresis can be adjusted with poten­tio­meters. The monitoring states are indicated by yellow LEDs.

Two relay changeover contacts are available on the DG 3202. The DG 3282 is equipped with two isolated transistor switching contacts (open-collector), which can optionally work with pull-up resistors. Input, power supply and the outputs are safely galvanically isolated from each other.

The Protective Separation and the 24 V DC power supply make the DG 3202 and DG 3282 universally applicable for all measure­ment and industrial applications, as well as for building automation.

Product line

Device Order No.
Limit Value Monitor with relay contacts DG 3202
Limit Value Monitor with transistor switches DG 3282

 

Technical Data

Input

Input signal 0(4) … 20 mA 0 … 10 V
Input resistance Current input approx. 5 Ω Voltage input approx. 120 kΩ
Overload max. Current input 200 mA Voltage input 300 V
Transmitter supply +Us 16 V at UPower = 24 V, (13 V … 22 V depending on the supply voltage)
current limited ≤ 30 mA
Switch point setting 0 to 110 % with 12-turn potentiometer, independently adjustable for each switching output
Hysteresis setting 0 to 6 % or 0 to 60 % of measuring range switchable, adjustable with potentiometer

Output

DG 3202 (Relay):
    Contact type 2 changeover relays (SPDT)
    Switching capability AC max. 250 V / 6 A,     1500 VA
    Switching capability DC max. 250 V / 0.2 A,    115 V / 0.3 A,     30 V / 6 A
Recommended minimum load 300 mW / 5 V / 5 mA
DG 3282 (Transistors):
     Contact type 2 transistor switches, fully isolated, optional 10 kΩ Pull-up resistor
     Switching capability 30 V DC, max. 50 mA, residual voltage < 1.5 V, not current limited
Status indication one yellow LED per switching output
Response time approx. 20 ms

General Data

Switch error < 0.2 % full scale
Temperature coefficient 1) < 150 ppm/K
Test voltage 4 kV, 50 Hz, 1 min. input against power supply against both switching outputs
3 kV, 50 Hz, 1 min. switching output 1 against switching output 2
Working voltage 2)
(Basic Insulation)		 1000 V AC/DC for overvoltage category II and 600 V AC/DC for overvoltage category III acc. to EN 61010 and pollution degree 2 between input, power supply and both switching outputs. Furthermore 300 V AC/DC between output 1 and output 2.
Protection against electrical shock 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 %, approx. 1.0 W
Ambient temperature Operation
Transport and storage		 –20 °C to +60 °C    (-4 to +140 °F)
–35 °C to +85 °C    (-31 to +185 °F)
EMC 3) EN 61326 -1
MTBF (acc. to EN 61709 / SN 29500) 575.4 years (Tamb. 40 °C, FIT 198)
Construction 12.5 mm (0.5″) housing, protection class IP 20, mounting on 35 mm DIN rail acc. to EN 60715
Connection Captive plus-minus clamp screws, Wire cross-section max. 2.5 mm² / AWG 14
Stripped length 6 … 8 mm / 0.28 in, Screw terminal torque 0.8 Nm / 7 lbf in
Weight 70 g
  1. Average TC related to full scale value in specified operating temperature range, reference temperature 23 °C
  2. For applications with high working voltages, ensure there is sufficient spacing or isolation from neighboring devices and protection against electric shocks.
  3. Minor deviations possible during interference

Block diagram

Dimensions

Terminal assignments

  • 1.1 +Power supply +
  • 1.2 −Power supply −
  • 2.2 ++Us
  • 2.1 +Voltage Input +
  • 3.1 +Current Input +
  • 3.2 −Input −
  • Output 1
  • 4.1COM     Out+
  • 4.2NO        Out−
  • 5.1NC        Pull-Up
  • Output 2
  • 6.1COM     Out+
  • 6.2NO        Out−
  • 5.2NC        Pull-Up
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