SPECIFICATION:
| Model | TW9820 | TW2085 | TW9820-2 | 
| Supply
  Voltage | AC28V
  ±20% DC24V | DC24V | DC24V | 
| Fuse | 2A | 2A | 2A | 
| Load
  Coil Resistance | 20Ω  ( 20°C ) | 10Ω
  / 20Ω  (20°C) | 20Ω  (20°C) | 
| Input
  Control Voltage | 0V
  ~ +10V | 0V
  ~ +10V | 0V
  ~ +10V | 
| Max.
  Current Output Range | 0
  ~ 900 mA | 0
  ~ 900 mA | 0
  ~ 900 mA | 
| Adjust
  the Null Value | 0
  ~ 900 mA | 0
  ~ 900 mA | 0
  ~ 900 mA | 
| Adjust
  the Gain Value | 0
  ~ 900mA/2.5V | 0
  ~ 900mA/2.5V | 0
  ~ 900mA/2.5V | 
| Up
  Ramp Period / Down Ramp Period | 0.1
  ~ 2.5 sec. | 0.1
  ~ 2.5 sec. | 0.1
  ~ 2.5 sec. | 
| Temperature
  Drift | 0.2mA
  / 1°C | 0.2mA
  / 1°C | 0.2mA
  / 1°C | 
| Work
  Temperature | 0
  ~ 50°C | 0
  ~ 50°C | 0
  ~ 50°C | 
| Max.
  Power Requirement | 30VA | 15VA | 30VA | 
| Weight | 0.21KG | 0.21KG | 0.21KG |