we made a good recorder better... Introducing Model SRG-2 single pen and Model DSRG-2 dual pen potentiometric recorders. The latest in the SargentWelch family of recorders designed with the chemist in mind. Both include linear and logarithmic operation. Log conversion is completely electronic —no gears to change. And the log range is expandable from 1 /2 to 3 full cycles. Ten spans from 1 mV to 1000 mV, calibrated or variable expansion in each span, and 9
chart speeds offer maximum flexibility. Signals are traced by a disposable, fiber tip pen on metric chart paper with a 24 cm scale graduated - 2 to 100. Other features such as automatic gain control, zero adjust up and down scale and fast pen response combined with years of experience designing and building recorders result in unsurpassed versatility and dependability. Optional accessories include
an event marker and new electronic integrator. To learn more about how we made a good recorder better, call or write today. Sargent-Welch Scientific Company 7300 North Linder Avenue Skokie, Illinois 60076 (312)677-0600
SARGENT-WELCH
Single and dual pen, linear/log, strip chart recorders
Anaheim/Birmingham/Chicago/Cincinnati/Cleveland/Dallas/Denver/Detroit/Springfield,
N.J./Toronto/Montreal
CIRCLE 192 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 50, NO. 7, JUNE 1978 ·
709 A
