Thermocouple acquisition module, 8-channel analog temperature acquisition

Analog Input

Input Channels

8 differential analog input channels

Input Type

Thermocouple

Measurement Range

DAM-3138: Default factory setting for K-type thermocouple (-40-1300°C)

(Order model: DAM-3138K).

Other ranges require factory customization upon order, customizable options include:

J (0~1200°C) (Order model: DAM-3138J)

T (-200~400°C) (Order model: DAM-3138T)

E (0~1000°C) (Order model: DAM-3138E)

R (0~1700°C) (Order model: DAM-3138R)

S (0~1768°C) (Order model: DAM-3138S)

B (250~1800°C) (Order model: DAM-3138B)

N (0~1300°C) (Order model: DAM-3138N)

WRe5-WRe20 (0~2500°C) (Order model: DAM-3138A)

WRe5-WRe26 (0~2315°C) (Order model: DAM-3138C)

WRe3-WRe25 (0~2315°C) (Order model: DAM-3138D)

Sampling RateNote 1

Total channels 16SPS

Per channel = 16SPS / (number of enabled channels + 1) Note 2

Resolution

16-bit, internal ADC uses 24-bit chip.

Accuracy

See Table 3 in Section 2 Configuration Description

Isolation Voltage

1500VDC

Range Setting

All channels share the same range

Open Thermocouple Detection

Open thermocouple detection function, status can be read via Modbus registers

Compensation Method

Cold junction compensation

Other

Communication Interface

RS485 and RS232

Baud Rate

1200~115200bps

Data Communication RateNote 3

Up to 180 times/second (single module, at 115200bps)

Up to 24 times/second (single module, at 9600bps)

Up to 3 times/second (single module, at 1200bps)

Watchdog

Software watchdog

Power Supply Voltage

+10V～30VDC

Power Protection

Reverse power protection

Power Consumption

Rated 1.5W @ 24VDC

Operating Temperature

-10℃～＋70℃

Storage Temperature

-40℃～＋80℃