Maintenance; Ttt Calibration; Transducer Calibration; Battery Replacement - norbar 43228 Operator's Manual

MAINTENANCE

TTT Calibration

Your TTT has been supplied with a certificate of calibration. To maintain the specified accuracy it is
recommended that the TTT is recalibrated at least once per year. Re-calibration should be carried out at
Norbar or by a Norbar approved agent, where all the facilities to ensure the instrument is functioning at
maximum accuracy are available.
IMPORTANT: DO NOT REMOVE FRONT PANEL OR CASE; THERE ARE NO CALIBRATION
SETTINGS INSIDE.

Transducer Calibration

To maintain the specified accuracy it is recommended that transducers are recalibrated at least once per year.
Re-calibration and repair should be carried out at Norbar or by a Norbar approved agent.

Battery Replacement

There are 2 batteries in the TTT.
Description
Coin cell 3V
Battery pack 6V NiMH
To replace battery(s):
1. Turn TTT off.
2. Remove 4 front screws with 2.5mm HEX key.
3. Lift the top of the panel to show PCB.
4. Replace coin cell (marked BATT1 on PCB) and / or replace battery pack (marked CONN4 on PCB).
5. Fit panel without trapping any internal wires and refit 4 front screws.
CONN4 connection
for battery pack,
the red wire should
be closest to the
edge of the PCB
BATT1
Dispose of used battery in a safe way. Do not incinerate, mutilate or short circuit.
22
Reason for
Use
Replacement
Time & Date Time & Date fail
Powers TTT TTT has short battery life
FIGURE 2 – PCB (Inside TTT)
Battery Markings Part Number
CR2032
38876
39202
38876