Eagle Microsystems RA1000 - Manual (Page 6)

6
NOTE: ALL WIRING MUST COMPLY WITH APPLICABLE
LOCAL AND NATIONAL ELECTRICAL CODES.
1. Remove four (4) screws securing side cover and remove cover.
2. Connect input power (120 Vac standard) to N,H,G terminals.
3. Connect current output and alarm contacts.
NOTE: DO NOT RUN LINE VOLTAGE AND SIGNAL VOLTAGE
IN THE SAME CONDUIT.
V . REAGENTS
A pH buffering solution or carbon dioxide gas is required for analyzer operation.
In addition, potassium iodide solution is required when measuring other residuals
as described in the SPECIFICATIONS Section.
Fill reagent bottle with pre-mixed solution or mix reagents as follows:
NOTE: NEVER DISABLE UNIT WITHOUT REMOVING REAGENT
BOTTLE AND FLUSHING WITH CLEAN WATER UNTIL THE ENTIRE
CHEMICAL IS REMOVED.
A. Liquid Reagents for Chlorine Residual
Pre-mixed pH buffer solution is available, contact factory. OR, mix pH
buffer solution as follows:
1. For Free Chlorine Measurement:
a. Using a 2 quart (1.9-liter) bottle, fill bottle 3/4 full with
distilled/deionized water.
b. Add 460 grams sodium acetate trihydrate crystals and mix until all
the crystals are dissolved.
c. Add 900 grams or 885 cc glacial acetic acid or distilled white
vinegar.
d. Fill bottle to the top with distilled or deionized water and shake to
thoroughly mix solution and pour contents into the analyzer
reagent bottle.
2. For Total Chlorine Measurement:
Mix potassium iodide solution in a separate bottle. (Potassium iodide
crystals are available. Contact factory.)
a. Follow Steps 1.a. through 1.d. above.
b. Add potassium iodide crystals as follows: