WILKERSON INSTRUMENT CO., INC.

DIS973 RTD Input Process Indicator
4.5 Digit Display With Optional Alarms
and Re-Transmit Output

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DIS973

DIS973
RTD Input
Process Indicator
4.5 Digit Display
With Optional Alarms
and Re-Transmit Output

$474.00

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
  RTD Element Type
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 (°C, °F, °K, etc.) Proportional to an RTD Input
  • 3-Wire or 2-Wire, 10 ohms to 2000 ohms RTDs
  • Linearized for Platinum RTDs
  • Fully Isolated Output and/or 0, 1, or 2 Alarms
  • Alarm Setpoints Adjustable without Disturbing Transmitter Output
  • Fail-Safe Alarm Operation
  • LED Alarm Status Indicator
  • Adjustable Deadband
  • Unlimited Choice of Input / Output Ranges (Within specified range limits)
  • Fits Standard 1/8 DIN Cutout
  • Rated NEMA-4, Splashproof when Properly Installed
  • 5 Year Warranty

The DIS973 provides a display, optional isolated DC output voltage or current proportional to an RTD input signal, and optional alarm setpoints. All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility 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
Temperature indication, control, monitoring, data acquisition and warning for HVAC, pumps, motors, etc.

RTD INPUT
3-Wire or 2-Wire, 10 ohms to 2000 ohms

INPUT RANGE
select any range within RTD limit
[min span 25°F/14°C (100°F/55°C with 10 ohms RTD)]

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 (min span 1 mA)

EXCITATION CURRENT

RTD Type Current
10 ohm
100 ohm
1000 ohm
2000 ohm
10 mA
5 mA
0.5 mA
0.2 mA

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

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

RESPONSE TIME
(Range Dependent) <100 ms

OPEN SENSOR OUTPUT
> full scale

ACCURACY
±0.1% of span

LINEARITY
(Pt RTD, output vs temp)
±0.05% of span (temp >32°F /0°C)
±0.15% of span (temp <32°F/0°C)
(others, output vs res)
±0.01% (display)
±0.05% (transmitter output)

COMMON MODE REJECTION
120 dB, DC to 60 Hz

DISPLAY
Digit Size .56" LED, 4½ digits, ±19999
Decimal Point ±1.9.9.9.9
Control Range
Zero ±19999
Span min span 100 / max span 20000

DISPLAY
Update 3/sec

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

TEMPERATURE STABILITY
±0.02% of span or 0.025°C/°C, whichever is greater

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
RTD Input +
RTD Input -
RTD Lead Compensation
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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