WILKERSON INSTRUMENT CO., INC.

DIS875 Frequency Input Process Indicator
3.5 Digit Display With Optional Alarms
and Re-Transmit Output

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DIS875

DIS875
Frequency Input
Process Indicator
3.5 Digit Display
With Optional Alarms
and Re-Transmit Output

$465.00

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 (rpm, fps, ips, mps, etc.)
    Proportional to Frequency Input
  • Fully Isolated Output and/or 0, 1, or 2 Alarms
  • 50 mV to 100 V Peak Input Sensitivity
  • Selectable Sensitivity for Low Noise Level Rejection
  • Frequency Limit 60 kHz
  • 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 DIS875 provides a display, optional isolated DC output voltage or current proportional to a frequency 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 it 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.

The wide range input sensitivity allows the DIS to be driven from low level magnetic pickups as well as logic level signals. A choice of three input sensitivities allows the user to trade off sensitivity versus noise rejection. A built in pull up resistor is connected to a spare input terminal to permit use with contact closure or open-collector inputs.

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:
Flow, speed of motors, conveyors, etc., indication, control, HI/LO alarm.

INPUT RANGE
select any type thermocouple (minimum span 5 mV)

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
(Range Dependent) <100 msINPUT RANGE
Select any range from 0 to 10 Hz min to 0 to 60 kHz max

INPUT SENSITIVITY
Any voltage from 15 mV to 250 V rms

INPUT IMPEDANCE
100 kilohms or greater

PULLUP RESISTOR
10 kilohms to 6.5 VDC

OPTION 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

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

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,
>24V compliance (1200 ohms max at 20 mA)

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

ACCURACY
±0.1% of span

LINEARITY
±0.1% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

DISPLAY
Update 3/sec

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

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

TEMPERATURE STABILITY
±0.02% of span/°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 +
Pullup Resistor A
High Input B
Low Input C
Common
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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