Thermo Scientific Thermo Scientific 494 Series, Руководство по эксплуатации

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Deionizer 5-1 Thermo Scientific
Section 5
Operation
Operate the Bantam Deionizer as follows:
1. Close the drain valve.
2. Open the inlet valve one to two turns and allow a couple of minutes
for the cartridge to fill. If leakage occurs at an o-ring, close the inlet
valve, loosen the lower tightening wheel enough to rotate the cartridge
90°, and retighten. Open the inlet valve and recheck for leakage.
Caution
Do not over-tighten the tightening wheel.
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3. When water issues from the tubing, adjust the inlet valve to the desired
flow rate (see Cartridge Technical Characteristics).
Caution
Do not exceed a flow rate of 38 LPH (10 GPH). Leakage will
occur if this flow is exceeded.
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Operate the Direct Reading Meter by setting the on/off switch to the “on”
position. When the purity meter drops below the acceptable minimum
purity, or when the purity meter needle registers in the 0.05 to 0.025
megohm red range, the cartridge should be replaced. The meter provides a
constant indication of the water purity. The meter scale is calibrated 0 to
19 PPM (ionizable impurities) with equivalent indications in megohms
resistance from 0.025 to 18, making possible constant monitoring of the
water purity. To stop the meter from operating, set the on/off switch to the
“off ” position.
Purity Meter
Operation