Product, Order & General Inquiries +1 (800) 663-7845 (8am-4:30pm PST)
The CAL Compressed Air Logger goes beyond simple pressure monitoring. By combining pressure measurement (up to 150 PSI) with three-phase current logging, it allows you to directly correlate compressor load with system demand. This makes it an invaluable tool for:
Energy Audits & Load Studies – Track compressor cycling and current draw to identify opportunities for energy savings.
Leak Detection – Compare pressure profiles against expected current loads to uncover inefficiencies and wasted air.
System Troubleshooting – Diagnose issues in pneumatic control systems by monitoring both supply pressure and electrical behavior.
Performance Benchmarking – Establish baseline data for predictive maintenance and long-term system optimization.
Its compact, portable design makes it ideal for service technicians, plant engineers, and energy consultants who need a reliable way to analyze compressed air systems in the field. With the included TrendReader software, data can be quickly visualized, exported, and shared to support corrective action or long-term planning.
Accessories & Related Products
The CAL Compressed Air Logger is designed to work seamlessly with AC current transducers for three-phase load studies. Clamp-on probes make it easy to capture current flow without disconnecting wiring, ensuring quick and safe installation. By pairing the logger with the right transducers, you can:
Measure compressor energy consumption across all three legs.
Identify imbalances between phases that may signal equipment wear or wiring issues.
Correlate pressure drops with electrical load to pinpoint leaks or system inefficiencies.
Additional accessories such as high-pressure and flow transducers expand the CAL’s capabilities even further, giving you a complete toolkit for auditing compressed air systems and improving overall efficiency.
Battery | 1.6 AH 3.6V Lithium |
Baud Rate | 460K800 (<2.5 min Backup) |
Case Material | Noryl® Plastic |
Channel Accuracy - Current | AEMC CT: ±5A over 0-250A up to 500A |
Channel Accuracy - Pressure | ±0.7 PSI (±0.5 Pa) |
Channel Accuracy - Process | ±0.5% FS + Transducer |
Channel Accuracy - RH | ±3% RH over 10 to 90% RH |
Channel Accuracy - Temperature | ±0.3°C over 0 to 70°C (±0.5°F over 32 to 158 to 158°F) |
Clock Accuracy | ±1 sec over 7 days |
Dimensions | 110 x 70 x 20 mm (4.3 x 2.6 x 0.8 in) |
Input Impedance | CH3: I:125Ώ, V:> 100KΏ |
Input Mode Dependent | CH4-7: I:400Ώ, V:> 100kΏ |
interface Cable | IC-102 USB to Logger |
Memory Size | 6MB (5 channels at 1 second for 7 days) |
Operating Limits | -40 to 70°C (-40 to 158°F) |
Recording Mode | Stop on Full or First-In-First-Out |
Resolution | 12 bit Converter 1 part in 4096 |
Sampling Method | Average or Spot Reading |
Software Version | TrendReader 3.09 or Later |
Weight | 120g (4 oz) |
Software & Interface Cable are required for full functionality of the product.
ACR software tools are intuitive and flexible, allowing you to easily configure ACR data loggers to collect the data you need. Once downloaded, your data is displayed in presentation-quality graphs and can be converted into popular formats for use with spreadsheet programs, document editors, and other third-party applications.
TrendReader Full License TrendReader Interface Pkg TrendReader on USB Full
Data loggers are often used in highly regulated environments such as food and pharmaceutical production and storage where strict safety regulations apply. Regulatory agencies generally require proof of calibration.
ACR calibrations are performed using reference standards that have been calibrated and are traceable to the US National Institute of Standards & Technology (NIST). This ensures that all ACR data loggers meet, and perform to, their published specifications, allowing you to be confident that they will assist you in achieving your compliance requirements.
Calibration certificates are provided with every calibration we perform. ACR Systems is an ISO 9001:2015 registered company and calibration records are kept as part of our quality system and can be made available for customer audits.