IntelliPack Series 841T Transmitter/Alarm User's Manual Frequency Input
___________________________________________________________________________________________
- 10 -
Note:
For sensitive applications, high frequency noise may be
reduced by placing a 0.1uF capacitor directly across the load.
Voltage Output Specifications:
Output Range:
0-10V DC, 0-5V DC.
Output Accuracy:
See Table 7.
Output Current:
0-10mA DC maximum.
Output Impedance:
1
.
Output Resolution:
See Table 7.
Output Short Circuit Protection:
Included
Current Output Specifications:
Output Ranges:
0-20mA DC, 4-20mA DC, or 0-1mA DC.
Output Maximum Current:
21.6mA typical.
Output Accuracy:
See Table 7.
Output Compliance:
10V Minimum, 12V Typical.
Output Resolution:
See Table 7.
Output Load Resistance Range:
0 to 550
, typical.
Table 7: Analog Output Range Resolution & Accuracy
Output Range
3
Resolution
Accuracy
1,2
at 25
C
Percent-of-Span
Output
Overall
4
0 to 20mA DC
0.0025%
0.025%
0.050%
4 to 20mA DC
0.0025%
0.025%
0.050%
0 to 1mA DC
0.0370%
0.100%
0.125%
0 to 10V DC
0.0025%
0.025%
0.050%
0 to 5V DC
0.0040%
0.050%
0.075%
Notes (Table 7):
1.
Voltage outputs unloaded. Loading will add “I*R” error.
2. Software calibration produces high accuracy.
3. All current ranges are subsets of a 0-24mA DAC range
which allows for under and over range capability. The 0-
5V range is a subset of the 0-10V range.
4. For overall accuracy (input to output) add 0.025% to
output accuracy, assuming full input range is utilized.
Digital-to-Analog Converter:
Analog Devices AD420AR-32, 16-
bit
-
. Monotonic to 16 bits.
DAC Integral Non-Linearity:
0.002% (
1.4LSB) of span typical,
0.012% (
7.9LSB) of span maximum, utilizing full DAC output
span (0-24mA).
DAC Output Temperature Drift:
Better than
20ppm/
C
Typical,
50ppm/
C Maximum.
Output Update Rate:
Frequency inputs:
1 to 10 per second
(varies with input frequency). Pulse counting inputs: 10 per
second.
Output Settling Time:
10ms to 0.1% of full-scale, varies with
load.
RELAY OUTPUT SPECIFICATIONS
Model 841T-1500 units include a SPDT electromechanical
alarm relay which provides a set of high reliability, Form C
(Normally Open and Normally Closed), SPDT contacts. The
relay operates as a limit alarm with control of deadband/
hysteresis, latching/non-latching contacts, failsafe/non-failsafe
modes, plus relay time delay.
SPDT Alarm Relay Specifications (841T-1500 Units Only):
Electrical Life - CSA Ratings:
25VDC, 5A, 10
5
operations, resistive.
48VDC, 0.8A, 10
5
operations, resistive.
240VDC, 0.1A, 10
5
operations, resistive.
120VAC, 5A, 3x10
4
operations, resistive.
240VAC, 5A, 3x10
4
operations, resistive.
Note:
To control a higher amperage device, such as a pump,
an interposing relay may be used (see Interposing Relay
Connections Drawing 4501-646).
Contact Material:
Silver-cadmium oxide (AgCdO).
Initial Dielectric Strength:
Between open contacts:
1000VAC rms.
Expected Mechanical Life:
20 million operations. External
contact protection is required for use with inductive loads
(see Contact Protection Drawing 4501-646).
Relay Response:
For an input step change from 10% of
span on one side of an alarm point to 5% of span on the
other side of the alarm point, the relay contacts will switch
tracking the input acquisition time (see Input Acquisition Time
specification). If configured with additional Relay Delay Time,
this will add to the relay response time.
ENCLOSURE/PHYSICAL SPECIFICATIONS
See Enclosure Dimensions Drawing 4501-642. Units are
packaged in a general purpose plastic enclosure that is DIN rail
mountable for flexi
ble, high density (approximately 1” wide per
unit) mounting.
Dimensions
: Width = 1.05 inches, Height = 4.68 inches, Depth
= 4.35 inches (see Drawing 4501-642).
DIN Rail Mounting (-xx0x):
DIN rail mount, Type EN50022; “T”
rail (35mm).
Connectors:
Removable plug-in type terminal blocks;
Current/Voltage Ratings: 15A/300V; Wire Range: AWG #12-
24, stranded or solid copper; Separate terminal blocks are
provided for input, power, output, and relay contacts. For
supply connections, use No. 14 AWG copper wires rated for
at least 75
C.
Case Material:
Self-extinguishing NYLON type 6.6 polyamide
thermoplastic, UL94 V-2, color beige; general purpose NEMA
Type 1 enclosure.
Printed Circuit Boards:
Military grade FR-4 epoxy glass.
Shipping Weight:
1 pound (0.45 Kg) packed.
APPROVALS (-xxx0)
0
: Agency Approvals - cULus Listed, UL File E199702.
Product approval is limited to general safety requirements of
the above standards.
Warning:
This product is not approved for hazardous location
applications.