6.3
95-8714
10
STATUS AND FAULT INDICATION
Status and fault conditions are indicated using
the 4–20 mA analog signal output. Signaling
modes include two predefined modes, and a
user defined mode for third party compatibility.
The user defined mode allows users to
define a mA output level (range 1.0 - 3.6 mA)
for each of the three status / fault categories:
configuration, advisory, and detection disabled.
Refer to Table 4 for status indications and
Table 5 for fault conditions. Status and fault
indication configuration options can be changed
via HART or Modbus communication. (Refer
to the “Troubleshooting” section of this manual
for additional information regarding fault
identification.)
NOTE
Transmitter warm-up and fault conditions
are indicated by a solid yellow LED, and
diagnostics can be performed using
HART or Modbus RTU communication.
The receiver will continue to perform its
safety function, and will indicate a fault
status if normal operation has been
compromised. Transmitter fault and
status can be read from the receiver
HART and Modbus ports once the
communication link is active. See the
“Optional Communication Link” section of
this manual for more information.
If a transmitter fault occurs, perform
normal maintenance and ensure correct
input voltage at the device. If normal
operation cannot be restored, return the
device to the factory.
SPECIFICATIONS
OPERATING VOLTAGE (Both Modules)—
24 Vdc nominal. Operating range is 18 to 30 Vdc.
Ripple cannot exceed 0.5 volts P-P.
POWER CONSUMPTION—
TRANSMITTER LAMP—
Xenon flashlamp, field-replaceable module
(10 yr warranty).
WARMUP TIME—
15 seconds minimum, 150 seconds maximum
from power-up, depending upon alignment
accuracy.
CURRENT OUTPUT—
Linear 4-20 mA (isolated/non-isolated) rated at
600 ohms maximum loop resistance @ 24 Vdc
operating voltage, with the ability to go below 4
mA to indicate a fault condition.
Power Consumption (Watts)
Transmitter
Maximum
Receiver
Maximum
@ 24
Vdc
Total Unit,
No Heaters
or Relays
6.5
2.6
30% Heater
Only
1.4
1.1
50% Heater
Only
2.5
2.0
70% Heater
Only
3.5
2.7
100% Heater
Only
4.2
3.3
Relay Only
N/A
1.2
Total Unit, Max
10.7
7.2
@ 30
Vdc
Total Unit,
No Heaters
or Relays
6.5
2.9
30% Heater
Only
2.3
1.8
50% Heater
Only
4.2
3.1
70% Heater
Only
5.9
4.2
100% Heater
Only
7.2
5.1
Relay Only
N/A
1.2
Total Unit, Max
13.7
9.3
@ 33
Vdc*
Total Unit, Max
16.0
10.0
* Per regulatory approval requirements, the unit power
consumption was measured at 33 VDC input voltage
(10% above claimed range) and results listed on the product
label.