Michell Instruments XZR500ST, User Manual

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XZR500 User’s Manual
Michell Instruments 5
INTRODUCTION
The function keys are located below the display and are used to select operations
from the main menu level, to enter sub-menu levels and to select and enter parameter
variables within those menu levels. The function key panels are shown in Figure 5 and
Table 1 describes the operation of the keys.
Key Function
[*] Enter or select key. Operation of this key from the front-page display causes
the selection menu to be displayed
[+] Value up key. Used to change the value. Access key to the Calibration menu
[-] Value down key. Used to change the value. Access key to the Set-up menu
Table 1 Control Keys
The analog output signal can be set in 0-20 mA or 4-20 mA. The scale is con fi gurable
in the range of 0.01-25% O
2
.
The system provides three alarms on relay contact: a general failure alarm and two
threshold alarms with user-con fi gurable set-point (action high and low) and hysteresis.
Figure 7 Control Unit
Cable
The cable connecting the control unit and the probe supplies the furnace with power
and it relays the MSRS temperature and voltage measurements to the Control Unit.
The standard cable length is 6 meters long (optional, up to 100 meters).