WILKERSON INSTRUMENT CO., INC.

DIS872 AC Input Process Indicator
3.5 Digit Display With Optional Alarms
and Re-Transmit Output

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DIS872

DIS872
AC Input
Process Indicator
3.5 Digit Display
With Optional Alarms
and Re-Transmit Output

$480.00

The following information must be entered to complete your order:
See "Specifications" below for Input, Output and Display range limits.

Power:

Input:
Zero Scale
Full Scale
Units
Display: Zero Scale
Full Scale
Units (Optional)
  Display Action
Alarms: Alarm Option
Output: Output Action
(If Output Option
Selected, Enter
Output Values)
Zero Scale
Full Scale
Units

Quantity:

 

  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • 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 (Within specified range limits)
  • Fits Standard 1/8 DIN Cutout
  • Rated NEMA-4X, Splashproof and Corrosion Resistant when Properly Installed
  • 5 Year Warranty

The DIS872 provides a display, optional isolated DC output voltage or current proportional to an AC input signal, and optional alarm setpoints. All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptability to electrical noise and damage by lightning. 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
.

INPUT RANGE
Voltage select any range from 0 to 250 V rms max
(min span 50mV)
Current select any range from 0 to 5 A rms max
(min span 1 mA, internal shunt)

INPUT FREQUENCY
40 Hz to 1 kHz sine wave

Current
select any range between ±5 A max
(min span 1 mA, internal shunt)
Low Input (Option S) select any range between ±20 V max
(min span 10 mV)

INPUT IMPEDANCE
Voltage 200 kilohms

Current

Input Value Input Shunt Value
100uA
1 mA
10 mA
100 mA
1 A
5 A
1000 ohm
100 Ohm
10 Ohm
1 Ohm
0.1 Ohm
0.01 Ohm

OPTIONS SA, DA SETPOINT
each alarm 0 to 100% of span

DEADBAND
0.25% to 100% of span

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

OPTION TX 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 (1200 ohms max at 20 mA)

OUTPUT RIPPLE
 (Peak-to-Peak) <0.1% of span

ISOLATION
Output/Input >500 megohms
Breakdown Voltage >600 VAC rms

RESPONSE TIME
1 sec typical

ACCURACY
±0.1% of span

LINEARITY
Display ±0.01% of span
Output ±0.025% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

DISPLAY
Digit Size .56" LED, 3½ digits, ±1999
Decimal Point ±1.9.9.9
Control Range
Zero ±1999
Span min span 10/max span 2000

DISPLAY
Display Update 3/sec

OPERATING TEMPERATURE
14°F to 140°F /-10°C to 60°C

TEMPERATURE STABILITY
±(0.02% of span +30 μV)/°C max
Low Input (Option S)
±(0.02% of span + 1.3 μV)/°C max

POWER
115 VAC ±10%, 50 or 60 Hz (4 W max)
230 VAC ±10%, 50 or 60 Hz (4 W max)

DIN Mod Series Dimension Drawing

Terminal 1
Terminal 2
Terminal 3
Terminal 4
Terminal 5
Terminal 6
Terminal 7
Terminal 8
Terminal 9
Terminal 10
Terminal 11
Terminal 12
Terminal 13
Terminal 14
Output -
Output +
No Connection
Input
Input Common
Shield
Alarm 1 NC
Alarm 1 C
Alarm 1 NO
Alarm 2 NC
Alarm 2 C
Alarm 2 NO
Power AC L1
Power AC L2
Specifications    Manual

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