User manual

Product Overview and Specifications
2638A-100 Universal Input Module 1
1-23
Trigger
Absolute Voltage Range ......................................... -4 V to 30 V
Minimum Logic High ............................................... 2.0 V
Maximum Logic Low ............................................... 0.7 V
Minimum Pulse Width ............................................. 50 µs
Maximum Latency ................................................... 100 ms
Alarm Output
Absolute Voltage Range ......................................... -4 V to 30 V
Output Type ............................................................ open drain active low
Output Logic Low (<1 mA) ...................................... 0 V to 0.7 V
Maximum Sink Current ........................................... 50 mA
Output Resistance ................................................. 47 Ω
2638A-100 Universal Input Module
General
Measurement .......................................................... IEC 61010-2-030: CAT II 150 V, on any range. 250 V Max. (see safety
notice in this manual under input protection)
Offset Voltage ......................................................... <2 µV
3-Wire Internal Resistance Mismatch ..................... <50 mΩ
Basic CJC Accuracy ............................................... 0.6 °C