The heart of the Apex Instruments Manual system is the XC-260 Source Sampler, a precision meter console used for collecting Hg emissions. The average mercury concentration for the sampling period is determined by using the sample volumes measured by the dry gas meters and the results of the sorbent trap analysis.

The Apex Instruments AK-6000 MercSampler™ Audit Kit is designed for Appendix K and Method 30B compliance auditing of the XC-6000 MercSampler System. The kit includes a single or dual secondary Reference Meter Console. Single kit is in a rugged 4U X-Case with a molded-in handle for easy transport. Dual kit comes with 8U black polyethylene molded case. Use with software version 80620-94 or late.