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HK Instruments DPI+/-500-D Quick Start Manual

HK Instruments DPI+/-500-D Quick Start Manual

Differential pressure indicator

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DIFFERENTIAL PRESSURE INDICATOR
DPI
Model summary
Each device has 4 selectable measuring ranges. Each device is individually temperature compensated.
4 range model
- AZ for autozero element*
- 2R for 2 relays
- D for display
DPI+/-500 (-AZ-2R) -D
DPI2500 (-AZ-2R) -D
*) -AZ model recommended when measuring pressures below 250 Pa.
**) %/FS from highest pressure range (including: general accuracy, temperature drift, linearity, hysteresis and repetition
error).
Initial value is the factory calibration accuracy, better accuracy can be achieved with span point calibration.
The device has 0...10V output and 1 or 2 relay outputs (depending on the model).
The Differential Pressure Indicator is delivered individually packed with standard accessories (see
accessories).
range
range
range
1
2
3
±100Pa
±250Pa
±300Pa
100Pa
250Pa
1000Pa
range
Accuracy %/FS **)
4
Within operation
temp.-10...+50°C
±500Pa
±0,7% (±1,5% initial)
2500Pa
±0,7% (±1,5% initial)
Long term stability
typical 1 year
-AZ
without -AZ
≤ ± 1 Pa
≤ ± 8 Pa
≤ ± 1 Pa
≤ ± 8 Pa

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Summary of Contents for HK Instruments DPI+/-500-D

  • Page 1 DIFFERENTIAL PRESSURE INDICATOR Model summary Each device has 4 selectable measuring ranges. Each device is individually temperature compensated. 4 range model range range range range Accuracy %/FS **) Long term stability - AZ for autozero element* typical 1 year Within operation - 2R for 2 relays temp.-10…+50°C - D for display...
  • Page 2: Technical Data

    Technical data Bursting pressure 30 kPa Suitable media Air and non-aggressive gases Measuring element Piezoresistive Electrical interface Supply voltage 21-35VDC/24VAC ± 10%, with AZ option 24VDC/VAC ± 10% Current consumption 35mA + relays (7mA each) + AZ (20mA) + 0…10V output (10mA) Output signals, basic version Relay output (250VAC / 30VDC / 6A) 0…10V, L min 1kΩ...
  • Page 3 Dimensions...
  • Page 4: Installation

    Installation Notes when using high voltage for relays (115VAC…250VAC)! The supply cable and control cable for relays should be separate if high voltage (115…250VAC) is used in relay contacts. Both of the cables have their own cable entry. Electrical connection diagram The settings are done according to the instructions below:...
  • Page 6: Zero Point Adjustment

    Zero point adjustment Note! Supply voltage must be connected one hour before the 0-point adjustment is carried out. 1) Disconnect both tubes from the pressure inlets + and – 2) Push both arrow buttons or select “Zero” from the menu green led turns off and “Zero”...
  • Page 7 High point adjustment (span) Note! Supply voltage should be connected one hour before the span point adjustment is carried out. Note! Span point must not be adjusted without input pressure. If the span point is adjusted with 0 Pa or close to 0 Pa input pressure the device may lose its accuracy and will not give out correct readings.

This manual is also suitable for:

Dpi2500-dDpi+/-500-az-2r-dDpi2500-az-2r-d