The DTFPM firefighting equipment power supply monitoring voltage and current sensor module independently developed and produced by our company is used in conjunction with the DTFP firefighting equipment power supply monitoring equipment produced by our company. It uses RS485 communication, DTFPM voltage and current sensor, with main power supply voltage, backup power supply voltage and current And residual current measurement function, mainly used in the power monitoring system of fire-fighting equipment. This sensor has RS-485 communication interface, adopts Modbus-RTU protocol, and can be connected with the power supply status monitor of fire fighting equipment to form a power monitoring system for fire fighting equipment. It can effectively monitor the working power of fire-fighting equipment and avoid the situation that fire-fighting equipment cannot work normally due to power failure.
■Main power supply voltage measurement: monitoring of over-voltage, under-voltage, power failure, and equal status;
■Backup power supply voltage measurement: monitoring of overvoltage, undervoltage, power failure, and equal status;
■Load current measurement: overcurrent, overload;
■Load residual current measurement: use with residual current transformer
■RS485 communication interface, Modbus-RTU communication protocol
■Standard rail installation: DIN35mm rail
■ Standard rail installation;
■Easy installation, simple wiring, convenient construction and simple debugging;
Parameter Index | |
Input voltage rating | AC 220V |
Input current rating | AC 5A |
Measurement error | <5% |
Power supply | DC 24V |
Power consumption | <1W |
Switch input | Two channels, passive input |
Relay output | AC220V/5A,DC30V/5A |
communication | RS485interface Modbus-RTUprotocol |
Dielectric strength | 2KV |
Insulation resistance | ≥ 50MΩ |
MTBF | ≥ 50000h |
Working conditions | Ambient temperature:-10 ～ + 40℃ Storage temperature:-50℃～ + 85℃ Relative humidity:5% ～ 95%,No condensation |
Installation method | 35mmStandard rail |
Shape size | 106mm*97.6mm*37mm |
Shape size:106*97.6*37mm
Product model
■Main power supply voltage measurement: monitoring of over-voltage, under-voltage, power failure, and equal status;
■Backup power supply voltage measurement: monitoring of overvoltage, undervoltage, power failure, and equal status;
■Load current measurement: overcurrent, overload;
■Load residual current measurement: use with residual current transformer
■RS485 communication interface, Modbus-RTU communication protocol
■Standard rail installation: DIN35mm rail
■ Standard rail installation;
■Easy installation, simple wiring, convenient construction and simple debugging;
Parameter Index | |
Input voltage rating | AC 220V |
Input current rating | AC 5A |
Measurement error | <5% |
Power supply | DC 24V |
Power consumption | <1W |
Switch input | Two channels, passive input |
Relay output | AC220V/5A,DC30V/5A |
communication | RS485interface Modbus-RTUprotocol |
Dielectric strength | 2KV |
Insulation resistance | ≥ 50MΩ |
MTBF | ≥ 50000h |
Working conditions | Ambient temperature:-10 ～ + 40℃ Storage temperature:-50℃～ + 85℃ Relative humidity:5% ～ 95%,No condensation |
Installation method | 35mmStandard rail |
Shape size | 106mm*97.6mm*37mm |
Shape size:106*97.6*37mm
Product model
