S-CIA-CM14 HOBO 4-20 mA Adaptor for External Sensors

The 12-bit 4-20 mA Input Adapter interfaces with any sensor providing a 4-20 mA signal to connect to smart sensor compatible data loggers. This adapter features both a non-switched input and a battery-saving switched input that extends the life of external batteries. It also provides a trigger signal for controlling power to attached external sensors, while offering digital filtering which improves measurement accuracy with 32 readings/sample and 60 Hz noise rejection.

• 12-bit resolution
• Digital filtering improves measurement accuracy with 32 readings/sample—4-20 mA adapter has 60 Hz noise rejection
• Measurement averaging over logging interval further enhances accuracy
• Plug-in modular connector for easy interface with HOBO^® Weather Station or HOBO^® Micro Station data loggers
• Screw terminal for connecting to sensors
• Micro Station has room for two adapters and Weather Station has room for ten (adapters mount inside station enclosure)
• Represents one data input channel

Environment:
The S-CIA-CM14 Sensor is for use in Outdoor environments

Measurements:
The S-CIA-CM14 Sensor supports the following measurements: 4-20mA

Measurement range: 4-20 mA (measures down to 0 mA to detect error condition)
Operating Temperature Range: -40° to 75°C (-40° to 167°F)
Accuracy: ±40 µA ±0.3% of reading (over operating temperature range)
Resolution: ±4.93 µA
Input impedance: 124 ohms (differential input)
Sensor Trigger Source: Voltage: 2.5 V ±2.4%; maximum current: 1 mA
Trigger Timing:Warm-up Time: 300 ms ±3% (fixed)Measurement Time: 16.6 ms ±3% to filter out 60 Hz noise
Cable Length: 14 cm (5.5 inch)