User Guide

INITIAL PREPARATION

Each meter is supplied complete with batteries. Remove the back

cover, unwrap the batteries and install them while paying attention to

the polarity (see also page 34).

To switch HI 9171, HI 9174, HI 9181 and HI 9184 on, press TEMP.

To switch HI 9271 and HI 9274 on, press ON/OFF.

If the meter does not switch on check the batteries.

PROBE CONNECTION

Choose the most appropriate temperature probe(s) for your applica-

tion (see page 36) and connect it (them) to the probe connector(s)

located on the top of the instrument. All the probes have been

precalibrated at the factory and no calibration is needed.

HI 9171, HI 9181 and HI 9271 take a single probe while HI 9174,

HI 9184 and HI 9274 can take up to four probes.

With the meter facing you, channel #1 is the first connector on the

top left corner.

If neither a temperature probe nor a calibration test plug is connected

to the instrument, the meter will display "°C ----" to alert the user.

This could also indicate that probe cable is damaged. "CH" and the

channel number are displayed together (HI 9174, HI 9184, HI 9274

only).

TEMP

ON/OFF

°C

OPERATIONAL GUIDE