ParTech 7200, Instruction Manual

Page: 7 / 50

7200 Monitor Instruction Manual
2 Introduction
2.1 General
The 7200 Monitor is used for processing and displaying the output signal from a Partech sensor. It combines a clear
display of the measured parameter, a simple user interface, with good flexibility to enable configuration to satisfy the
users needs. For remote signalling the 7200 has two alarm outputs and a single analogue output.
The 7200 Monitor has an IP65 enclosure and is suitable for outdoor use however a protective cover or outer enclosure
is recommended to further protect the instrument from the elements.
2.2 Display
The 7200 display indicates the measured value with large numerals for good visibility with an additional status line that
shows the current state of the alarm outputs, analogue output and any faults that are present. The display has a
backlight to enable use of the monitor in low light conditions and also has a user settable contrast.
The measurement title, units and display range can all be user set to suit the sensor being used and the parameter
being monitored.
2.3 Key Pad
A six key tactile membrane keypad is used for all configuration and operation of the 7200 Monitor, each key has a very
positive operation enabling use even whilst wearing gloves.
2.4 Alarms
Two user configurable alarms are provided within the 7200, which can be used to signal high, low or fault alarm
conditions. Each alarm output is a single pole change over relay which is normally energised (no alarm present) and
de-energises when an alarm occurs (fail safe).
2.5 Analogue Output
The 7200 Monitor has a single analogue output that can be configured for voltage or current operation and can be set
to operate over the whole measuring range or a portion of the measuring range. The output can also be configured for
reverse operation (i.e. 20 to 4mA) should this be required.
When a fault condition occurs (see faults), the user can select whether the output indicates the last valid
measurement, its maximum output value or its minimum output value. This is useful when the alarm outputs are not
used and it is necessary to remotely determine the instrument’s state.
2.6 Sensors
The 7200 Monitor can be used with the following Partech sensors:
TT Series TT2000LA, TT2000LS, TT2i, TT10i, TT12i, TT20i
IR Series IR8, IR15, IR40, IR100, IR12LS
IL Series IL55, IL55BV2
ST Series ST20 Range 0-xxxxx
167300IM-Issue 12 Issue Date 14/10/2014 Page 7 of 50