Technical Datasheet: EGE SDN 552/1 GPP

Model/Type: SDN 552/1 GPP

Product Category: Thermodynamic Flow Controller / Monitor (Strömungswächter)

1. Product Characteristics & Application

• Sensor Type: Inline Thermodynamic Flow Sensor

• Application Range: Monitoring and precise regulation of liquid media flow rates (e.g., water, glycol mixtures, or low-viscosity oils) within cooling circuits, dosing lines, and industrial pump protection systems.

• Display & Interface: Integrated front panel featuring a 3-digit LED display, status LEDs for outputs (S1 / S2), and programming push-buttons (S1/-, S2/+, FUNC) for adjusting limit thresholds, calibration, and response parameters in the field.

2. Electrical Data

• Operating Voltage: 24 V DC (± 10%)

• Electrical Design: DC PNP

• Output Configuration: Dual Switching Outputs (S1 + S2)

• Current Consumption: < 100 mA (idle)

• Reverse Polarity Protection: Yes

• Short-Circuit Protection (SCP): Yes

3. Outputs & Signal Rating

• Output Function: Configurable per channel (S1 and S2 can be individually set to Normally Open or Normally Closed limits via the display interface).

• Permanent Current Rating (Ie): 200 mA max. per output path.

4. Mechanical & Environmental Data

• Process Connection: Robust compression fitting union connections at both ends (designed for high-pressure inline fluid networks).

• Materials: * Housing Block: Heavy-duty industrial polymer (PBT)

  • Wetted Fluid Path: High-grade Stainless Steel (316L / 1.4571 or equivalent)

• Ambient Operating Temperature: -20…70 °C

• Medium Fluid Temperature Range: 0…85 °C

• Manufacturer: EGE-Elektronik Spezial-Sensoren GmbH (Germany)

• Production Code: 35 15/K

5. Electrical Connection & Wiring Layout

The controller features an integrated standard male connector socket at the base for multi-core field cable interfacing.

Pinout Assignment & Color Codes:

• Pin 1 (BN – Brown): → L+ (24 V DC Positive Power Supply)

• Pin 2 (WH – White): → S2 Switching Output Channel (PNP signal to Load)

• Pin 4 (BK – Black): → S1 Switching Output Channel (PNP signal to Load)

• Pin 3 (BU – Blue): → L- (0 V Ground / Common Negative)

Wiring Layout:

       [ Pin 1 / BN ] ───────────────────────────────────── ( + 24 V DC )
                        │                  │
                 ┌──────┴──────┐    ┌──────┴──────┐
                 │  Output S1  │    │  Output S2  │
                 │ (PNP Signal)│    │ (PNP Signal)│
                 └──────┬──────┘    └──────┬──────┘
                        │                  │
       [ Pin 4 / BK ] ──┘                  └─── [ Pin 2 / WH ] ─── [ Load ] ──┐
         (Load S1)                                (Load S2)                   │
                                                                              ▼
       [ Pin 3 / BU ] ────────────────────────────────────────────────────────┴─── ( 0 V )

DATA SHEET