Press BTL (F2) to choose to perform the test out of the pipe. The display will show:
F1 F2 F3 F4
Press VER (F1) key to verify the Zero CAL-CHECK
™
.
F1 F2 F3 F4
Press YES (F1) key to verify the Zero CAL-CHECK
™
.
F1 F2 F3 F4
WARNING! You must verify that there is a no ow condition before proceeding. Be sure to
isolate the sensor completely - any air movement (even from a fan) can result in a false "Fail"
result.
Once process is stable, press YES (F4) key to begin the Zero CAL-CHECK
™
.
F1 F2 F3 F4
F1 F2 F3 F4
This test will take less than 5 minutes. The display will alternate between the standard deviation
measurement value and the T=xx count down timer indicating how much time is left to nish the test.
F1 F2 F3 F4
Upon test completion, the nal value will be displayed along with a Pass/Fail message.
ZERO BTL TEST
VER EXIT
VERIFY ZRO?
YES NO
Process Zero and
Stable? YES
Verifying ZRO
Sd = xx.xx T=xx
Verifying ZRO
Di = xx.xx T=xx
Verifying ZRO
Di = xx.xx T=xx
Di=x.xxx %
Passed OK
Operation | 88
Model FT3
Operation