Instruction Manual

tina88e1-b (2014-09)

4.4 Zeroing the Gauge

The gauge is factory calibrated while "standing upright"

(→ "Calibration Test Report").

We recommend performing a zero adjustment, when the

gauge is operated for the first time.

Due to long time operation or contamination, a zero drift could

occur and zero adjustment may become necessary.

For adjusting the zero, operate the gauge under the same con-

stant ambient conditions and in the same mounting orientation

as normally.

4.4.1 <ZERO> Adjustment

The zero can be adjusted via

• the <ZERO> button on the gauge,

• the diagnostic port (→  [3]),

• briefly apply the supply voltage to the digital input

"Remote Zero" (pin 10),

• the RS232 interface (→  [2], [3]),

• the Ethernet interface (→  [1], [4]),

• the wireless network (→  [1], [4]).

While the gauge is being heated and/or under atmos-

pheric pressure, the zeroing function is locked in order

for operating errors to be prevented.