Endura AZ series integral and remote transmitter
Combustion oxygen monitor
12 Transmitter Specification
IM/AZ20E–EN Rev. F
97
12 Transmitter Specification
Transmitter enclosures
Remote
Wall-, pipe- or stand-mounted
4 gland entries
Optional
1
/
2
in NPT, M20
Integral
Head-mounted
3 gland entries
Optional
1
/
2
in NPT, M20
Automatic calibration
AutoCal hardware
Isolated solenoid valve control as standard, 24 V @ 2 W
per valve*
Dedicated isolated digital inputs to monitor pressure
switch contacts as standard – voltage-free, normally
closed with gas present
Display and switches
Display type
Graphical 128 x 64 pixel LCD
Display backlight
Green LED
Operator switches
4 capacitive switches
(operated through the front glass)
Relay outputs
Number
2 standard
Type
Normally closed
5 A @ 230 V AC or 30 V DC (non-inductive)
Functions
User-configurable – can be activated by one or more of
the following signals:
Process alarm 1, 2, 3, 4
Calibration in progress
Calibration failed
Out of test gas 1, 2
Test gas 1 valve control
Test gas 2 valve control
Failure diagnostic
Out-of-specification diagnostic
Maintenance required diagnostic
Function check diagnostic
*For driving internal automatic calibration (AutoCal)
probes or can be used to drive external calibration units
on remote transmitters only.
Analog outputs
Standard
1 isolated current output
Programmable to retransmit oxygen (linear or
logarithmic) or temperature
Programmable over 4 to 20 mA
Over-range capability to indicate system failure
programmable from 4 to 22 mA
Optional
1 isolated current output
Programmable to retransmit oxygen (linear or
logarithmic) or temperature
Programmable over 0 to 20 mA
Over-range capability to indicate system failure
programmable from 0 to 22 mA