| Campo | Código | Descripción |
| Serie | 40t | Universal process indicator / alarm unit (mostrar & alarm only, NOT a PID temperature controlador) |
| Panel size | 48 | 48×48mm (1/16 DE, cutout: 45×45mm) |
| Display digits | 4 | 4-digit LED display |
| Transmitter supply | 0 | No built-in sensor power supply |
| Producción 1 + Producción 2 | RR | OUT1=Relay; OUT2=Relay |
| Clasificación: 5A / 250VACACIONES, Normalmente abierto (NO) contacto | ||
| 3rd output | 0 | No 3rd relay output |
| Entrada digital / Analog retransmission | 0 | No digital DI, no 4~20mA analog retransmission output |
| Interfaz de comunicación | 0 | No RS485 communication (Modbus unsupported) |
| Fuente de alimentación | 0 | 11~27 VAC/VDC universal AC/DC power supply |
| (Sufijo 1 = 100~240VAC wide-range power) |
- Especificaciones técnicas principales
- Universal Input (Configurable via front panel buttons)
Par termoeléctrico: k, j, mi, t, R, S, B, norte, etc..
IDT: Pt100 (2-cable / 3-cable)
Linear signals: 4~20mA, 0~20mA, 0~10V, 0~60mV, etc..
- Exactitud: ±0.2%FS ±1 digit
- Front panel protection: IP65
- Overall depth: 99 milímetros
- Sampling cycle: 15~120ms adjustable
- Funciones: Process value display, arriba a 2 independent alarms, sensor break/short circuit detection; No PID control function
- Notas clave
✅ Positioning: Digital indicator with alarm, cannot directly control temperature; only for monitoring + switch alarm output
❌ No RS485 communication, cannot connect to PLC bus
❌ No 4~20mA retransmission output
❌ No built-in 24V sensor power supply
✅ Compatible with DC24V / AC24V power supply
- Alternativa común & Variant Models of the Series
40T-48-4-00-RR-0-0-0-1: Power supply changed to 100~240VAC
40T-48-4-00-RR-0-2-0-0: Equipped with additional 4~20mA analog retransmission output
40T-48-4-24-RR-0-0-0-0: Built-in 24V transmitter power supply
GEFRAN 40T-48-4-00-RR-0-0-0-0 Dimension Parameters
- Dimensión general (W × H × Depth)
48 milímetros × 48 milímetros × 99 milímetros
Estándar 1/16 DIN form factor
- Cabinet mounting cutout dimension
45 milímetros × 45 milímetros
Recommended machining tolerance: +0.5milímetros
- Información complementaria
Front panel rating: IP65
Instrument rear depth (inside cabinet): 99milímetros; reserve ≥105mm internal space for wiring during cabinet design
Model 40T-96 in the same series is horizontal 96×48 version, do not confuse
GEFRAN 40T-48 Measurement Accuracy
Official Nominal Accuracy
- Par termoeléctrico / RTD Input
±0.2% Full Scale (FS) ±1 digit
Test condition: Ambient temperature 25℃
- Linear Analog Input (mV, 0~10V, 0/4~20mA)
±0.2% Full Scale (FS) ±1 digit
Temperature Drift
When ambient temperature deviates from 25℃:
≤ ±0.01% FS / ℃
Important Supplementary Notes
- Resolución: 4-digit LED display, minimum display unit 1 dígito
- Accuracy only refers to instrument itself, excluding sensor error
- Alarm actuation accuracy follows measurement accuracy with no additional deviation
- Limitación: No PID regulation, only measurement & alarma; no control accuracy index
Practical Example
Range set as 0~200℃:
Maximum instrument measurement error ≈ ±0.4℃ ±1 digit
GEFRAN 40T-48-4-00-RR-0-0-0-0 Configuración de salida
Model output segment: …00-RR-0-0-0-0
- RR = OUT1, OUT2
- 7th digit `0`: No 3rd output
- 8th digit `0`: No analog retransmission output
- 9th digit `0`: No communication interface
- Onboard Outputs
2 Salidas de relé
Contact form: Normalmente abierto (NO)
Calificación de contacto: 5A / 250VACACIONES; 5A / 30VCC (carga resistiva)
Solicitud: High/low limit alarm, limit switch signal; can drive small contactors and indicator lights
✅ Feature: Independent alarm outputs; alarm value and mode (límite alto/bajo, alarma de desviación, etc.) can be configured separately
- Outputs NOT available on this model
- ❌ No 4~20mA / 0~10V analog retransmission output (digit = 0, no 2)
- ❌ No SSR drive voltage output
- ❌ No RS485 Modbus communication
- ❌ No NPN/PNP transistor logic output
- ❌ No PID control output (this unit is only for monitoring & alarma, incapable of temperature regulation)
- Optional Output Combinations of the Series (for model selection reference)
RR: Dual relay (modelo actual)
RS: OUT1 Relay + OUT2 SSR drive output
SS: Dual SSR drive outputs
Suffix digit `2`: Extra 4~20mA analog retransmission output
Suffix digit `4`: RS485 Modbus RTU interface
Wiring Reminder
Relays are passive dry contacts. External power supply is required. The instrument does not supply internal power to contacts; do not connect directly to sensor circuits.
GEFRAN 40T-48-4-00-RR-0-0-0-0 Relay Operation Mode
✅ Both OUT1 and OUT2 relays support custom configuration via front panel
Notice: This is a digital alarm indicator without PID control. Relays can only be used as alarm outputs, not temperature control outputs.
- Configurable Alarm Modes (Independent for two relays)
- Absolute High Alarm (Hi)
Relay energizes when measured value setpoint
- Absolute Low Alarm (Lo)
Relay energizes when measured value < punto de ajuste
- Deviation Alarm (Positive / Negative Deviation)
Trigger based on deviation relative to setpoint (commonly used for differential monitoring)
- Sensor Break Alarm
Relay activates on thermocouple/Pt100 open circuit or signal over-range
- Adjustable Auxiliary Parameters
Alarm Hysteresis: Prevent relay rapid cycling (chatter)
Alarm Latch: Relay stays energized after alarm trigger; manual panel reset required
Power-up Alarm Suppression: Temporarily disable alarms at startup to avoid false triggering
Contact Logic: Select energized on alarm OR de-energized on alarm
- Limitaciones críticas
- Hardware contacts are Normally Open dry contacts. Physical hardware cannot be changed to Normally Closed; “de-energized on alarm” is realized purely by software logic.
- Cannot be configured as PID on/off control output (40T series is indicator, not PID controller like 400 / 2500 serie).
- OUT1 and OUT2 work independently; combination such as high limit on one channel and low limit on the other is supported.
- Parameter Access Procedure
Pulsación larga [F key] para 2 seconds → Enter default password 99
Navigate within `CFG` menu group:
o.1: OUT1 alarm setpoint
o.2: OUT2 alarm setpoint
Select alarm type, hysteresis, latch function and power-up suppression in corresponding submenus
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