Number of Channels

6/12 Individually isolated channels

Resolution

11.5-16 bits (see filter table)

Measuring method selectable per channel

Voltage: +/-50mV and +/-150mV

Thermocouple types: J, K, T, E, R, S, B, N and C

Integration time for 12 channels

Configurable from 15 msec to 120 msec.

Voltage Accuracy over temperature span

±0.1% of voltage span at 25 °C

±0.25% of span over temperature range

Thermocouple Input Types and Ranges

Thermocouple Type

Temperature Range

Type B

+300 to +1820

Type C

0 to +2315

Type E

-270 to +1000

Type J

-210 to +1200

Type K

-250 to +1372

Type N

-210 to +1300

Type R

0 to +1768

Type S

0 to +1768

Type T

-270 to +400

Voltage Input Ranges

Input Type

Voltage Range

-50mV to +50mV

-55.0 mV to +55.0 mV

-150mV to +150mV

-155.0 mV to +155.0 mV

Module temperature accuracy for thermocouple inputs over temperature span (2.3, 4, and 4.7 Hz filters), Does not include cold junction compensation or thermocouple tolerances.

Thermocouple Type & Range

+25°C

0°C to +60°C

Type J (-180ï‚°C to +1200ï‚°C)

±0.6°C

±2.3°C

Type J (-210ï‚°C to -180ï‚°C)

±0.8°C

±3.3°C

Type N (-160ï‚°C to +1300ï‚°C)

±1.0°C

±4.5°C

Type N (-210ï‚°C to -160ï‚°C)

±1.8°C

±8.0°C

Type T (-190ï‚°C to +400ï‚°C)

±0.9°C

±4.0°C

Type T (-270ï‚°C to -190ï‚°C)

±6.7°C

±18.0°C

Type K (-200ï‚°C to +1372ï‚°C)

±1.0°C

±4.0°C

Type K (-250ï‚°C to -200ï‚°C)

±5.1°C

±21.0°C

Type E (-200ï‚°C to +1000ï‚°C)

±0.6°C

±2.5°C

Type E (-270ï‚°C to -200ï‚°C)

±5.3°C

±14.0°C

Type S and R

±2.8°C

±11.5°C

Type C

±1.7°C

±7.0°C

Type B

±3.3°C

±20.0°C

Measurement Units

Degrees C or F, or Voltage

CJC measurement resolution

0.01° (C or F) for temperatures 0-60°C

CJC temperature accuracy

±1.5°C Typical (0-60°C), ±3.0°C Max (0-60°C)

Repeatability

0.05% of voltage span at a constant temperature over a 30-second period

Diagnostics reported to the controller

User configurable for Over Range, Under Range, High and Low Alarm, High- high and Low-low alarm, Open Circuit Detection, Positive and Negative Rate of Change alarm

Channel-to-channel crosstalk

70 dB minimum

Common Mode Rejection

2.3 Hz filter, 50/60Hz: 100 dB 4 Hz filter, 50Hz: 100 dB

4.7 Hz filter, 60Hz: 100 dB

Default or Hold Last State

Configurable per channel for Default to 0 or Hold Last State

Fault Reporting

Configurable per channel to enable or disable fault reporting for under or over range alarm, open circuit, rate of change alarm.

Rate of change

Configurable per channel to enable/disable and specify positive and negative rate of change alarms.

Channel Value Format

Configurable as 16-bit integer (in a 32-bit field) or 32-bit real number.

Backplane Power Requirements

3.3V IC695ALG306 = 400mA maximum

IC695ALG312 = 400mA maximum

5.0V IC695ALG306 = 225mA maximum

IC695ALG312 = 425mA maximum

Input Impedance

Voltage:  >=500k ohm

Power Dissipation within the module

IC695ALG306 = 2.5W max IC695ALG312 = 3.5W max

Isolation Voltage (Field to Backplane and Channel to channel)

(CJC inputs are not isolated from the backplane)

250VAC Continuous 1500VAC 1 minute

2550VDC 1 second

Normal Mode Noise Rejection

2.3 Hz filter, 50Hz/60Hz: 67dB

4 Hz filter, 50Hz/60Hz: 80dB 24 Hz filter, 50Hz/60Hz: 25dB

Module Filter settings, update times, rejection and resolution

Filter Frequency

(-3dB frequency)

Update Time (milliseconds)

Normal Mode Rejection at 50/60 Hz

2.3 Hz

120 (130 max)

67dB @ 50/60 Hz

4 Hz

70 (80 max)

80dB @ 50 Hz

4.7 Hz

60 (70 max)

80dB @ 60 Hz

24 Hz

20 (30 max)

25dB @ 50 Hz

28 Hz

15 (25 max)

25dB @ 60 Hz

Version

Firmware Revision

Comments

IC695ALG306-EB IC695ALG312-EB

1.02

Hardware revision for improved manufacturability. No change in functions, performance or compatibility.

IC695ALG306-DB IC695ALG312-DB

1.02

Hardware revision to address component obsolescence. No change in functionality, performance, or compatibility.

IC695ALG306-CB IC695ALG312-CB

1.02

Improves accuracy of cold junction compensation and eliminates input glitches observed on some units. Also changes dual CJC scanning to revert to scanning a single operational CJC sensor in the event one of them fails instead of assuming 25°C for the failed sensor.

Modified Type K Thermocouple low-end range from -270 °C to -250 °C.

IC695ALG306-CA IC695ALG312-CA

1.00

Label change only. No change in functionality, performance or compatibility.

IC695ALG306-BA IC695ALG312-BA

1.00

Modified the terminal block detector switch to increase the size of the switch lever. The increased size of the switch lever allows additional tolerance to assure contact with the terminal block actuator.

IC695ALG306-AA IC695ALG312-AA

1.00

Initial Release