Knick Stratos Pro A4..MSPH series, Инструкция по эксплуатации

Страница: 7 / 148

7
Introduction
Intended Use
The Stratos Pro A4... MSPH is used for pH/mV, ORP, and temperature
measurement in industry, environment, food processing, and sewage
treatment.
The sturdy molded enclosure can be fi xed into a control panel or
mounted on a wall or at a post. The protective hood, which is avail-
able as accessory, provides additional protection against direct
weather exposure and mechanical damage.
The device has been designed for digital sensors.
Plain-text messages in a large, backlit display allow intuitive opera-
tion. The colored display backlighting signals alarm messages (red) or
HOLD mode (orange).
The “Sensocheck“ automatic monitoring of glass and reference elec-
trode and the “Sensoface“ function for clear indication of the sensor
condition provide excellent diagnostics. The internal logbook (TAN
SW-A002) can handle up to 100 entries – up to 200 with AuditTrail
(TAN SW-A003).
The device provides two parameter sets which can be switched
manually or via a control input for diff erent process adaptations or
diff erent process conditions (e.g. beer and CIP).
Password protection for granting access rights during operation can
be confi gured.
Two fl oating, digital control inputs (“Hold“ and “Control“) are available
for external control.
The internal PID process controller can be confi gured as pulse length
or pulse frequency controller.
The device provides two current outputs (for transmission of mea-
sured value and temperature, for example) and four fl oating relay
contacts. A time-controlled cleaning function can be confi gured.
Current is provided through a universal power supply 24 ... 230 V AC/
DC, AC: 45 ... 65 Hz.
Approvals for Measurement in Hazardous Locations:
Stratos Pro A4...B MSPH: acc. to FM and CSA in Class I Div 2 / Zone 2