Thermo Fisher Scientific CyberScan pH 1000/pH 2500 User Manual

Page 7

Instruction Manual

pH 1000/ 2500

Connector

Function

ATC

For phono jack connection from the temperature probe for Automatic Temperature
Compensation. The probe should be a thermister type probe.

INPUT

For connecting sensors with a BNC connector to the meter. The meter accepts any pH,
ORP or ISE electrode with a BNC connector. Always make sure that the connector is
clean and dry.

REF

For connection to the pin tip type reference electrode normally used with half cell (mono)
type pH or ISE electrodes.

REC

For connection to the strip chart recorder.

GND

For connection to the ground earth jack (standard pin tip connectors).

RS232C

For connection to the RS232C serial port.

For connection to the AC power source to the power jack (DC).

Rear View of the Meter

2.5 AC/DC-Adapter

AC/DC adapters convert the power mains voltage 120/220 VAC to low DC voltage for the pH 1000/
2500 bench meter operation. Two basic models of adapters are available depending upon power
supply specification of each country. See accessories section.

2.6 Electrode

Electrode is one of the most important parts of the meter. The electrode glass membrane is fragile and
must be handled with care. A protective rubber cap containing a suitable storage solution to protect
the glass membrane and to maintain activation of the glass membrane covers the pH electrode
provided with the meter (when ordered). A special protective guide for use during measurements is
enclosed to offer added protection against damage to the pH electrode glass bulb during operation.
Maintenance of electrode is necessary from time to time. Please refer to Section 14 on Electrode
Care.