Product: VRM-A2614

1) 8-channel thermocouple input is possible. As soon as the power is turned on and/or as soon as the hardware is reset, default settings start temperature measurement.

2). K,E,J, or T (JIS) type thermocouple can be directly connected to the terminal block on the front panel. Because a terminal block type two-piece connector is used, it is possible to remove just the terminal block and change the board without removing each of the thermocouple screw clamps from the terminal block. The terminal block does not prevent the removal of the adjacent board.

3). Arbitrary thermocouple type can be selected for each input channel.

4). Can be set to take the moving average of the last four lots of A/D conversion values and calculate the temperature conversion values. Because it is the moving average, the most recent temperature conversion values, averaged for each sampling, can be obtained.

5). Disconnection of cables including thermocouples can be detected for each input channel. When disconnection is detected, an interrupt can be issued to the CompactPCI bus.

6). Dedicated cold junction compensator equipped with a Pt100¿ sensor performs cold junction compensation.

Features:

Temperature input range: -200°C to 1200°C
Digital output value:
16-bit code binary format (minus numbers: two’s complement)
Temperature conversion values: -2000 or less to 12000 or more (value to first decimal place x 10)
Resolution: K,E,J,T:0.1°C
Input bandwidth: Apx. 25Hz (-3dB)
Cold junction compensation accuracy: +1°C
Cold junction compensation temperature range: -20 to 80°C
Conversion rate Thermocouple input: Apx. 100Hz for each channel
Sampling rate Thermocouple input: 100Hz for all channels *2
No. of temperature input points: 8 thermocouple temperature input points and 1 cold junction compensation temp. input point
Absolute maximum input: +5V (not convertible input)
Isolation method:
Between thermocouple input and CompactPCI bus system: Transformer isolation
Between thermocouple input channels: Transformer isolation
Between cold junction input (Pt100) and CompactPCI bus system: No isolation
Disconnection detection: Yes (independent for each channel)
Connection terminal: 18-point terminal block (2 points for cold junction compensator)
Recommended wire size: 1.5mm2 or less
Power Requirements: DC5V +5%, Typ. 0.30A
Board size: Single height (3U), single width (4HP)
Weight: 175g
Environmental Specifications:
Operating temperature range: 0 to 50°C
Storage temperature range: -10 to 60°C
Operating humidity range: 10 to 90% RH (non-condensing)
Storage humidity range: 10 to 90% RH (non-condensing)
Operating atmosphere: Minimum dust, must be free of corrosive gases
*1– accuracy does not include accuracy and temperature characteristics for external components (platinum resistance thermometer, etc), not included
*2– equipped with one A/D converter for eight thermocouple input channels

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