Instruction manual

Model 14 pH/Redox Transmitter

for a

= a

Red

and for pH = 0 which correspond to a

standardized hydrogen ion activity

[H+]

= 1 mole per

liter. The stability and reversibility of a redox system

strongly influence the reproducibility of the measured

redox potential.

1.4 Main Features of the Instrument

The Model 14 is equipped with a single input measure-

ment channel: a pH or redox sensor may be connected

in addition to a temperature Pt100 or Pt1000 probe.

Sensor interrogation is a standard feature on the Model

14. To utilize this function, the pH electrode should be

equipped with a ground. The Model 14 is also equip-

ped with 2 analog outputs (0 4-20 mA).

Specifications (see Appendix 1 for detailed

specifications):

Power Supply • Standard version :

- 90.265 VAC 50/60 Hz

• Low voltage version :

- 13 – 30 VAC 50/60 Hz

- 18 – 42 VDC

Consumption 25 VA

Measuring Ranges pH : 0 – 14

ORP (redox) : ±1500 mV

temperature : -20 – 200˚C

(-4 – 392˚F)

Connections 2.5 mm

screw terminal pulled-

out for the relays and power

supply

Weight 2 kg

Package Includes instruction manual,

4 cable glands, 2 fittings and

2 mounting screws

Conformance to EN 50081-1 & EN 50082-2(RFI)

European Electrical EN 61010-1 (low voltage

Standards directive)

Maintenance No particular maintenance

required. Clean the instrument

with a soft tissue. Do NOT use

any aggressive agent.

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