IntelliPack Series 811T Transmitter/Alarm User's Manual DC Voltage/Current Input
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Table 7: Analog Output Range Resolution & Accuracy
Output Range
Resolution
Accuracy
1,2
Percent-of-Span
Output
Overall
0 to 20mA DC
0.0025%
0.025%
0.075%
4 to 20mA DC
0.0025%
0.025%
0.075%
0 to 1mA DC
0.0370%
0.100%
0.150%
0 to 10V DC
0.0025%
0.025%
0.075%
0 to 5V DC
0.0030%
0.050%
0.100%
Notes (Table 7):
1. Voltage outputs unloaded. Loading will add “I*R” error.
2. Software calibration produces high accuracy.
3. All output current and voltage ranges are subsets of the
0-20mA range.
General Output Specifications
Digital-to-Analog Converter:
Analog Devices AD420AR-32,
16-bit
-
. Monotonic to 16 bits.
Integral Non-Linearity:
0.002% (
1.4LSB) of span typical,
0.012% (
7.9LSB) of span maximum, for ranges utilizing
full output span (0-24mA, 0-10V DC).
Output Temperature Drift:
Better than
20ppm/
C Typical,
50ppm/
C Maximum.
Output Settling Time:
3ms to 0.1% of full-scale.
RELAY OUTPUT SPECIFICATIONS
Model 811T-1500 units include a SPDT electro-mechanical alarm
relay which provides one independent Single Pole Double Throw
(SPDT), Form C, electromagnetic, dry-contact sealed relay. The
relay operates as a limit alarm with control of deadband/
hysteresis, latching/non-latching contacts, failsafe/non-failsafe
modes, plus relay time delay.
Note:
In order to control a higher amperage device, such as a
pump, an interposing relay may be used (see Drawing 4501-646).
SPDT Alarm Relay Specifications (811T-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.
Contact Material:
Silver-cadmium oxide (AgCdO).
Initial Dielectric Strength:
Between open contacts:
1000VAC rms.
Expected Mechanical Life:
20 million operations. External
relay contact protection is required for use with inductive
loads (see Contact Protection Drawing 4501-646).
Relay Response (No Relay Time Delay):
Relay contacts
will switch within 150ms typical, 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.
ENCLOSURE/PHYSICAL SPECIFICATIONS
Unit is packaged in a general purpose plastic enclosure that is
DIN rail mountable for flexible, high density (approximately 1”
wide per unit) mounting. See Enclosure Dimensions Drawing
4501-642 for details.
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 #14-
24 (stranded or solid copper); separate terminal blocks are
provided for power/output, input, 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.
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature:
-25
C to +70
C (-13
F to +158
F).
Storage Temperature:
-40
C to +85
C (-40
F to +185
F).
Relative Humidity:
5 to 95%, non-condensing.
Power Requirements:
+10V Minimum to +36V DC Maximum.
Current draw is a function of supply voltage (see Table 8).
Current shown in Table 8 assumes that the input excitation
supply is delivering 20mA, the output circuit is at 20mA, and
the IntelliPack Serial Interface Adapter is connected. An
internal diode provides reverse polarity protection.
CAUTION:
Do not exceed 36VDC peak, to avoid
damage to the module.
Table 8: 811T Supply Current
Supply
Voltage
Supply Current
(Relay Energized)
Supply Current
(Relay De-energized)
10V
275mA
240mA
12V
220mA
195mA
15V
170mA
150mA
24V
110mA
100mA
36V
80mA
75mA
Note:
Disconnecting the Serial Port Adapter will reduce
current consumption 8% on average. Unloading the input
excitation supply will reduce current consumption about 22%.
IMPORTANT
– External Fuse:
If unit is powered from a supply
capable of delivering more than 1A to the unit, it is recommended
that this current be limited via a high surge tolerant fuse rated for
a maximum current of 1A or less
(for example, see Bel Fuse MJS1).
Power Supply Effect:
DC Volts:
Less than
0.001% of output span change per
volt DC for rated power supply variations.
60/120 Hz Ripple:
Less than 0.01% of output span per volt
peak-to-peak of power supply ripple.
Isolation:
Input, output, power, and optional relay output circuits
are isolated from each other for common-mode voltages up