QUICK START PROGRAMMING:
Exclusive Quick Start screen appears the first time the Model 30 is powered up. Screen prompts direct the user to register the number of sensors, the measurement unit(s) and the language to display. The measurement loop is ready for use in a matter of minutes.

DISPLAY:
As many as 14 user selectable display screens are available, but the most useful is the one that shows both pH and DO at the same time. The two-line, 16-character, back-lit display can be customized to meet user requirements. All operations and descriptive messages can be field selected for English, French, German, Italian, Spanish, or Portuguese. Informative screens, which permit data not shown in the regular display, may be seen at the push of a button.

DUAL INPUT & OUTPUT:
The Model 30 accepts single or dual sensor input. The two 4-20 mA outputs can be independently programmed to correspond to any selected measurement or temperature. Output dampening and linear or log output may also be field selected.

ENCLOSURE:
The panel mount version (155 x 155 x 94.5 mm) fits standard 1/2 DIN panel cutouts, and its shallow depth is ideally suited for easy mounting in Hoffman-type enclosures. A panel mount gasket is included to maintain the weather rating of the panel. The wall/pipe mount version includes self-tapping screws for surface mounting. A pipe mounting accessory kit is available for mounting to a 2-inch pipe.

MENUS:
The Model 30 features an easy-to-use, intuitive menu that makes advanced programming and calibration simple. On-screen full text and phrase prompting does away with cryptic mnemonic based instrument displays. There are no service codes to enter before gaining access to menus. Easy to incorporate into your Standard Operating Procedures.

SPECIFICATIONS DISSOLVED OXYGEN

SPECIFICATIONS pH

Model 30 pH/DO Dual Transmitter Specifications

Input: Dual input. Solution ground and sensor interrogation capabilities. No separate preamp required. Accepts nA input from polarographic DO sensor. Uses industry standard 22K temperature compensator.

Output: Two isolated 0/4–20 mA outputs. Can be displayed in either mA or percent.

Calibration and Measurement: Measuring range is 0 to 14 pH. Single- or multiple-point calibration with auto buffer recognition. Will accept manual input of process pressure in mm Hg, inches Hg or bar. Measures partial pressure of oxygen and displays it as % saturation or ppm. Can set the zero point electronically or with inert gas.

Serial Communication: None.

Relays: Three programmable relays, activated according to setpoints. Each handles up to 5 amps.

Security: Option to set a passcode allowing “read only” or full access to all functions: Calibrate, Program and Display.

Configuration: Clear alphanumeric display with text prompts. User selectable automatic and manual temperature compensation. Easy to configure and program.

Physical Characteristics: Two-line, 16-character, back-lit LCD display. NEMA 4X (IP65) housing, weatherproof and corrosion resistant. CE approved.

Mounting Hardware: Available in either pipe or panel mount versions. Cable grips not included.

Power Supply Requirements: 115/230 VAC, 50/60 Hz.

Top Considerations:
• Clear, easy-to-read, back-lit display
• Full text prompts
• Easy programming
• Passcode protected menus

The standard analog communication protocol for over 20 years. The primary variable is transmitted via a 4-20 mA current loop from the field device to the control system. Only one variable can be transmitted per loop. No secondary data is available for the control system, and the field devices can only be calibrated and configured at the device itself in the fermentation or cell culture suite.