RA-4500 Digestion Block Heater Calibration
The attached PDF is the instructions for calibrating the heaters for the digestion block to ensure proper sample digestion. This calibration should be performed once a year.
Preparing Trace Level Calibration Standards
These instructions are specifically for preparing mercury standards at trace levels for the NIC RA-4300FG+ and previous models. These instructions will only work with the NIC direct purge systems and are not intended for use with other analyzers. ...
RA-5 User's Manual
The attached PDF is the Model RA-5 User Operational and Maintenance instrument and software manual. The maintenance procedures for the RA-5 can be found in the manual.
H2 Heater Coil Check
The attached PDF displays the test points and proper readings to determine if your H2 heater needs to be replaced. All these test points need to be measured with the instrument off, cooled down, and the instrument disconnected from power. The ...
RA-4 Low Flow Error
If you are getting a "Low Flow Error" on your RA-4300A system there are three main likely causes. A leak, a restriction, or a problem with the air pump. It should be noted, if you have recently changed and parts, or have done any maintenance to any ...
RA-4500 Reagent Line Cleaning
If a contaminated reagent is used, or the reagent tubing becomes contaminated, you will need to clean the reagent tubing. 1. Carry out "Reagent Discharge". 2. Empty the reagent bottle, rinse with DI water, then add nitric acid (1+10) to the ...