"Process Instruments and Calibrators"
6.7
Instruction Manual
Tips and Troubleshooting
a) Unexplained pressure drop may be due to air trapped in the system. Pressurise the machine to full range
and leave for a few minutes to allow trapped air to escape.
b) Pistons should be clean. If pistons get stuck or appear tight in rotation, clean the pistons with clean solvent
like carbon tetrachloride or isopropyl alcohol, apply oil,fit back and rotate the weights at high pressure to free
them.
c) Large pressure drops will show up as leak. Open cover and check seal nearest to oil spill.
