Emerson A6630 Temperature Monitor Machine Monitoring System sensor types

Sensor inputs

The following sensor types are supported

Thermocouples:

Type E -270.... .1000°C

Type J -210.... .1200°C

Type K -270... .1372°C .1372°C

Model T -270... .400°C .400°C

Signal voltage range: ±500mV

RTD:

PT100 (α=0.00385) -200.... .850°C

PT100 (α=0.00392)-200...660°C .660°C

Ni100 (α=0.00549)-60... .180°C .180°C

Ni120 (α=0.00672) -80...260°C .260°C

Cu10 (α=0.00427)-200...260°C .260°C

Measurable resistor range: 0..... .1000kΩ

These inputs are electrically isolated from the rest of the monitoring circuit.

Sensor power supply

Each channel is equipped with an integrated sensor power supply.

Thermocouples:

Bias voltage for isolating thermocouples

RTD: Constant current supply: 250μA .... . 1mA

Voltage: 4V

Power supply

Redundant power supply via two power inputs (decoupling diodes).

At least one power input is required for module power supply.

Supply voltage: 24 (18.... .31.2) VDC according to IEC 654-2; class DC4

Power consumption: max. 8 W

Control inputs

All channels have two logic binary inputs for the following two functions:

Reset of the maximum measured temperature

Reset latching relay

Limit blocking

The control inputs are designed for 24V logic (active low input)

Low level: 0.... .3V; high level: 13.... .48V

Input resistance: ≥30 kΩ

Current output

Nominal range:

0/4... .20 mA or 20... .4/0 mA

Open and short circuit protection

Permissible load ≤ 500 Ω

Resolution 16 bit

Optocoupler outputs

Six collector/emitter outputs

Uce = 48 VDC

Ice = 100 mA