Kann GEFRAN 40T-48-4-00-RR-0-0-0-0 durch 40T-48-4-00-RR ersetzt werden-0-0-1?

Abschluss: Ein direkter Austausch ist möglich. Die Hardware, Verkabelung und Kernfunktionen sind vollständig kompatibel. Der einzige Unterschied besteht in der Software- und Compliance-Version, die durch die letzte Ziffer angegeben wird, which will not affect normal operation. Below is the breakdown of model codes, differences and replacement guidelines.

1. Digit-by-Digit Model Code Comparison (Only the last digit differs)

40T-48-4-00-RR-0-0-0-0 (Teile-Nr. F000187) vs 40T-48-4-00-RR-0-0-0-1 (Teile-Nr. F000188)

1. 40T: Serie (40T48 48×48 mm Indicator / Alarm Unit)
2. 48: Panel dimension: 48×48 mm (1/16 AUS)
3. 4: 4-digit LED display
4. 00: Stromversorgung: 100…240 V AC/DC
5. RR: Ausgabe 1 & Ausgabe 2: Dual relays (5A / 250 V und)
6. 0: 3rd output / Digitaler Eingang / Transmitter output: Keiner
7. 0: Kommunikationsschnittstelle / 4th output: Keiner
8. 0: Reserved bit
9. Last digit: 0 = Legacy software / Basisversion; 1 = Updated software / Compliance certified version (CE, UL, usw.)
10. Hauptunterschiede

Identical hardware: Terminallayout, Einbaumaße, power supply range, relay contact specifications and input types (Universal input: TC/RTD/Linear signal) are exactly the same. No wiring modification required.

Identische Funktionen: Both support 3 alarm points, on-panel/software programming and parameter password protection. The only distinction is the firmware version and compliance certification. The version ending with 1 is the updated fully compatible firmware.

Teilenummern: Model ending with 0 = F000187; Model ending with 1 = F000188.

3. Ersatzempfehlungen & Notizen
4. ✅ Direct replacement: Fully compatible in terms of installation, wiring and terminal definition. No rewiring needed.
5. ⚠️ Mandatory operation: Reconfigure parameters (Eingabetyp, measuring range, Alarmschwelle, differential gap, usw.) after replacement. The new firmware is fully compatible with legacy parameter logic.
6. Special scenario: If the original equipment requires traceability of special compliance certifications (z.B. matching UL/CE documents), verify whether strict model consistency is required on site. For general functional use, no issues will occur.

Quick Reference for Replacement: GEFAHR 40T-48-4-00-RR-0-0-0-0 / 40T-48-4-00-RR-0-0-1

1. Full Model Code Explanation (Only the last digit differs)

> Kernschlussfolgerung: 100% compatibility in hardware structure, electrical specifications, terminals and functional pins. Direct replacement is supported.

2. Allgemeine technische Spezifikationen (Identical for both models)

3. Terminal Pin Definition (Universal for on-site wiring, no rewiring)

Standard terminal block on the rear of the device, gesamt 8 Terminals. Terminal layout and functions are fully identical for both models.

Ergänzen: This model has no transmitter output or communication port, and all terminals are fully utilized. Wire strictly in accordance with the above table.

4. Panel Keys & Step-by-Step Parameter Configuration (Mandatory after replacement)

Key Description

`SET`: Enter menu / Confirm parameter / Switch menu level

`▲/▼`: Wert anpassen / Switch options

`◀`: Shift digit / Return to previous menu

Complete Configuration Steps (General for field application)

Schritt 1: Enter Programming Mode

Press and hold `SET` for 3 seconds to enter parameter setting interface. For some units, enter the factory default password 0000 and press `SET` to confirm.

Schritt 2: Set Input Signal Type (Core setting)

1. Locate parameter `In.Ty` (Eingabetyp)
2. Use `▲/▼` to select the sensor type:

`K`: K-type Thermocouple

`Pt`: Pt100 RTD

`0-10`: 0-10V Analog Signal

`4-20`: 4-20mA Analog Signal

3. Press `SET` to save and proceed to the next item.

Schritt 3: Set Measuring Range

1. `Lo`: Set Lower range limit
2. `Hi`: Set Upper range limit
3. Adjust according to actual process range, then press `SET` to confirm.

Schritt 4: Configure Dual Alarm Relays (Corresponding to RR outputs)

1. `AL1`: 1st alarm value (for Relay on Terminal 5/6)
2. `dF1`: Differential gap of 1st alarm (to prevent frequent relay switching, recommended value: 0.5~2,0)
3. `AL2`: 2nd alarm value (for Relay on Terminal 7/8)
4. `dF2`: Differential gap of 2nd alarm
5. Select alarm mode: High limit alarm / Low limit alarm as required.

Schritt 5: Save Parameters & Ausfahrt

After all settings are completed, press `◀` repeatedly to return to the main interface. Parameters will be saved automatically.

To lock parameters against accidental modification: Locate `P.cod` and set a custom password.

5. On-site Check List after Replacement (Check item by item to avoid faults)

Inspektion vor dem Einschalten

1. Mechanical mounting: Secure the instrument on the panel without looseness; cutout size complies with 48×48 mm.
2. Wiring check: Überprüfen Sie die Stromversorgung, sensor and relay circuits per terminal table; ensure no loose connection, wrong wiring or short circuit.
3. Power confirmation: On-site power supply is 100~240 V AC/DC within rated range.

Post-power-on Inspection

1. Power-on test: 4-digit LED lights up normally, no black screen or flickering.
2. Signal verification: Compare real-time reading with actual sensor value; ensure deviation is within allowable range.
3. Alarm test: Simulate over-limit conditions manually; confirm two relays actuate/de-energize normally and external loads work properly.
4. Parameter recheck: Keep range, alarm values and differential gap consistent with original settings.

Compliance Check (Execute as required)

General industrial sites / No certification traceability required: No extra operation needed.

Ausrüstung exportieren / Strict model & certificate consistency required: The new model ending with 1 is the certified version with complete CE/UL documents for filing.

6. Häufige Fehler & Troubleshooting after Replacement

7. Ergänzende Hinweise
8. Firmware compatibility: The updated firmware (ending with 1) is fully backward compatible with legacy parameter logic, with no function reduction or protocol mismatch.
9. Spare parts procurement: Both models are interchangeable for reordering. The updated version ending with 1 is recommended for wider certification coverage.
10. Long-term operation: The two models have identical service life and load capacity, and require no differentiated maintenance standards.