21
SECTION 2
INSTRUMENT SETUP
2.1
Instrument Description
This sens
ion
™4 Laboratory pH/ISE/mV meter is designed for
laboratory use and operates on 115/230 VAC power. Two
channels are available for electrode connection.
The meter measures from -2.0 to 19.99 pH units and the sample
temperature. Displayed pH values are temperature corrected
using the measured sample temperature or a default temperature
setting. To display mV and pH values, press the
pH/mV
key to
toggle between the units.
In the ISE mode, the meter measures from 0 to 19900 with the
highest resolution as ten thousandths (0.0001). To display mV
and concentration values, press the
ISE/mV
key to toggle between
the units.
2.2
Power Connections
A 115 or 230 AC to DC converter is required to power the meter.
Plug the power jack of the adapter into the meter power connector
(see Figure 3). Then plug the adapter into the wall.
2.3
pH/ISE and Temperature Probe Connections
2.3.1
pH/ISE Probe Connections
Electrodes may be simultaneously attached to the 5-pin and BNC
connectors of the same channel as long as they are not in contact
with the same solution. To select either of the connectors for
measurement, go to
Setup 1
and choose one.
Five-pin Connectors
Attach pH electrodes with 5-pin connectors to the meter input by
lining the pins up with the holes in the meter port (see Figure 3).
Push towards the instrument.
BNC Connectors
For pH or ISE probes with BNC connectors, slide the connector
into the input. Push towards the instrument and turn the metal
sleeve clockwise to lock into position. Do not use a pH probe
with temperature sensor to measure temperature while using an
ISE probe.
