Air Chiller System (ACS) and Chiller Panel Getting Started Guide for the DMA 850 Page 37
Upgrading the 986400.901 DMA Air Chiller Panel for use with the
Discovery Hybrid Rheometer
The DMA Air Chiller Panel (P/N 986400.901 Rev. B and A; see Figure 4) can be upgraded to be a
Combined DHR/DMA Air Chiller Panel for use on either DMA or DHR instruments when the Com-
bined ACS Panel Upgrade Kit (P/N 545056.901; see Figure 38
) is purchased. Instructions for the
installation of this upgrade are given below.
Upgrading a Rev B Chiller Panel for use with the DHR
1 If needed, follow instructions for Shutting Down, Purging, and Defrosting the ACS and Disconnecting
the ACS to Use on Another Instrument.
2 Make sure that the ACS power switch is turned off, all event cables are disconnected, and the Inlet
Quarter-Turn Valve is turned to the OFF position and both pressure gauges show 0 psi.
3 With an adjustable wrench, disconnect the flow control orifice from the pressure regulator.
Figure 33 Disconnect flow control orifice.
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