Yokogawa AC8 Calibration Units - Manual (Page 8)

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IM 11M06D03-01E-A
3.2. SPECIFICATIONS, AC1
3.2.1 MODEL AC1, SINGLE POINT AUTOMATIC CALIBRATION UNIT
The AC1 provides control of reference air and cal gas flow rates while maintaining a constant regulation of gases.
The AC1 includes individual span, zero and block solenoids with manual overrides for easy setup of flow rates. The
user has a choice of copper or stainless steel tubing in addition to NEMA 4 or NEMA 4X enclosures. . It also contains
a 1 amp fuse with an LED indicator to indicate a power surge.
Figure 3.2
NOTE: Cutaway shows internal flow meters and solenoids
Operating Pressure: 20 psig
Maximum Pressure: 35 psig
Flow meter Range:
0.15 to 1.0 LPM (separate flow meter for cal gas and reference air).
Tubing: 1/4” Copper (standard); 1/4” Stainless Steel (optional).
Gas Connections: 1/4” FNPT
Voltage: 110 VAC, 50/60 Hz (standard).
Flow rates: Calibration gas – 0.6 LPM
Reference Air – 0.8 LPM
Exceeding the recommended flow rates will damage the detector cell.
NOTE