Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 16)

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9
 Thermocouple measure and simulating (for cold junction and automatic compensation modes): flat mini‐size
socket.
 Charger connection: standardφ2.1mm charger jack.
 RS232 interface: standard RS232‐DB9 socket.
 Pressure module: five‐pole circular push‐pull connector.
 RS232 parameter: baud rate is 2400, 4800, 9600 or 19200, data bits is 8, stop bits is 1, address is from 1 to 121.
 Rea‐time clock: three date formats are selectable, the range of year is 2000 to 2099, and time format is 24‐hour.
Electrical Signal Measure Specifications: (working environment: 20±5℃, accuracy for one year)
Table5‐1
Function Range Resolution Accuracy
Voltage DC
‐75.0000 to 75.0000 mV 0.1μV 0.01%RD+0.005%FS
‐30.0000 to 30.0000 V 0.1 mV 0.01%RD+0.005%FS
Current DC ‐30.0000 to 30.0000 mA 0.1μA 0.01%RD+0.005%FS
Resistance
Two‐wire 0 to 400.000 Ω 1mΩ 0.02%RD+0.005%FS
Three‐wire 0 to 400.000 Ω 1mΩ 0.02%RD+0.005%FS
Four‐wire 0 to 400.000 Ω 1mΩ 0.01%RD+0.005%FS
Two‐wire 0 to 4000.00 Ω 10mΩ 0.02%RD+0.005%FS
Three‐wire 0 to 4000.00 Ω 10mΩ 0.02%RD+0.005%FS
Four‐wire 0 to 4000.00 Ω 10mΩ 0.01%RD+0.005%FS
Frequency 1 to 50000.0 Hz 0.1Hz 0.005%RD+0.002%FS