2.2 95-871410
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 for additional
information regarding fault identification.)
NOTE
Transmitter warmup and fault conditions
are indicated by a solid yellow LED, and
diagnostics can be performed using
HART or MODBUS communication. The
receiver will continue to perform its safety
function, and will indicate a fault status if
normal operation has been compromised.
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.
To Next Page
Loading...
