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DIS972
AC INPUT
PROCESS INDICATORS
FEATURES
 | Provides 4 1/2 Digit Display, Red or Green LEDs |
| Display Calibrated in Engineering Units (V, mA, %, etc.) |
| Proportional to AC Input |
| Fully Isolated Output and/or 0, 1, or 2 Alarms (Optional) |
| Alarm Setpoints Adjustable Without Disturbing Transmitter Output |
| Fail-safe Alarm Operation |
| LED Alarm Status Indicator |
| Adjustable Deadband |
| 50 mV or 1 mA Minimum Input Span |
| Unlimited* Choice of Input/Output Ranges |
| Fits Standard 1/8 DIN Cutout |
| Rated NEMA-4X, Splashproof and Corrosion Resistant When Properly Installed |
| 5 + 5 Year Warranty |
DESCRIPTION
The DIS972 provides a display, optional isolated DC output voltage or
current proportional to an AC input signal, and optional alarm setpoints. The
units include filtering and conditioning to reduce susceptibility to transients
and noisy operations. The digital display utilizes an auto-zero dual-slope
integrating A/D converter for accuracy and stability. All controls are
accessible by removing a gasketed front access panel. The display controls are
wide-ranging so that they can be calibrated to display engineering units.
Decimal point selection is made with a switch, also accessible from the front.
A complete set of engineering unit labels is sent with each DIS. Once the
display has been adjusted to read the correct engineering units, the alarm
setpoints can be adjusted without test equipment and without disturbing the
output voltage or current.
Either setpoint may be displayed by use of the SP CAL switch. Each
setpoint has an LED to indicate alarm status. The alarms have adjustable
deadbands. Terminations are made to a screw terminal connector on the rear of
the case.
TYPICAL APPLICATIONS
AC process indication, control, monitoring of electrical devices such as motors,
pumps or heaters, etc.
MOUNTING
The DIS is designed to be mounted from the front of a panel through a standard
horizontal 3.62 x 1.77 inches (1/8 DIN) cutout. Two mounting cam-screws secure
the DIS to the panel.
SPECIFICATIONS
INPUT RANGE
Voltage
select any range from 0
to 250 V rms max
(min span 50 mV)
Current
select any range
between 0 to 5 A rms
(min span 1 mA, internal shunt)
INPUT IMPEDANCE
Voltage
200 kilohms
Current
Input
100µA
1
mA
10
mA
100
mA
1
A
5 A
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Shunt Value
1000 OHM
100
OHM
10
OHM
1
OHM
0.1 OHM
0.01 OHM
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OUTPUT RANGE
Voltage
select any range
between ±10 V
10 mA max
load
(min span 0.2
V)
Current
select any range from 0
to 20 mA max
24 V compliance**
(min span 1
mA)
RELAY CONTACTS (spdt)
Resistive Load:
5 A max, 150 W max,
240
VAC max, 30 VDC max
Inductive Load:
1/8 HP max at 120/240 VAC
SETPOINT
each alarm 0 to 100% of span
DEADBAND
0.25% to 100% of
span
RESPONSE TIME
1 sec
typical
ISOLATION
Output/Input
>500 megohms
Breakdown
Voltage
>600 VAC rms
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DISPLAY
Digit Size
.56 inch LED, 4 1/2 digits, ±19999
Decimal Point
±1.9.9.9.9
Control Range
Zero
±19999
Span
min span 10
max span 20000
Display Update
3/sec
ACCURACY
±0.1% of span
LINEARITY
Display
±0.01% of
span
Output
±0.025% of
span
OUTPUT RIPPLE
<0.1% of
span
(peak to
peak)
COMMON MODE REJECTION
120 dB, DC to 60 Hz
OPERATING TEMPERATURE
14°F to 140°F
-10°C to 60°C
TEMPERATURE STABILITY
±(0.02% of span +30 µV)/°C max
POWER
115 VAC ±10%, 50/60 Hz
(4 W max)
230 VAC ±10%, 50/60 Hz
(4 W max)
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* Within specified range limits.
**
Compliance: The sum of the voltage drops in the output loop cannot exceed 24 V at
rated current
(1200 ohms at 20 mA).
TERMINAL CONNECTIONS
Output - (Optional)
Output + (Optional)
NC
Input
Input Common
Shield
Alarm 1 NC (Optional)
Alarm 1 C (Optional)
Alarm 1 NO (Optional)
Alarm 2 NC (Optional)
Alarm 2 C (Optional)
Alarm 2 NO (Optional)
Power AC
L1
Power AC
L2
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(Terminals
Labeled)
1
2
3
4
5
6
7
8
9
10
11
12
13
14 |
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