Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 15)

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5. Technical Index
5.1 Working Environment
 Temperature: (‐10 to 50)℃.
 Relative humidity: ＜90%(Non‐condensing).
 Atmosphere pressure: (86 to 106) kPa.
5.2 Storage Environment
 Temperature: (‐20 to 60)℃.
 Relative humidity:＜90% (Non‐condensing).
5.3 Electrical Parameters
 Power supply: polymer Li‐ion rechargeable battery or 10VDC adaptor.
 Charge mode: specified 10VDC adaptor (charging time is less than 4 hours).
 Working time: more than 15 hours (The battery icon will blink when the power is low. It will power off
automatically if no power).
 To get the best sourcing and measuring performance, the battery power supply is recommended.
5.4 Technical Parameters
 Display: 3.5 inch high resolution TFT color screen.
 Size: 192mm x 100mm x 52mm (L×W×H), Weight: 0.7kg.
 Measure and source jacks: standard Φ4mm electrical jack.