Kobold Pad-d-ee-2-s-2-n-s-0-0 | Explosion Proof Fm Atex | Transmitters | Controlsystemsusa
Process Control Instrumentation, Field Devices and Industrial Automation

KOBOLD   PAD-D-EE-2-S-2-N-S-0-0

KOBOLD PAD Heavy Duty Differential Pressure Transmitter for measuring of pressure, flow and level. Customizable span from 0.3" W.C. to 6" W.C to 60 to 6000 PSIG. Stainless Steel, Hast-C, Tantalum or Monel material. 4500 PSIG max pressure. 4-20mA or frequency output. Differential, Gauge, or Absolute Pressure sensors. HART communication. IP 67. ATEX and FM approvals options.

Please Email us your request for quote   

Calibrated Span
Fill Liquid
Process Connection
Electrical Connection Connection
Approvals Connection

   4 Weeks  ]

  • Span: 0.3" W.C. ... 6" W.C. to 60 ... 6000 PSIG
  • Static Pressure: Max. 4500 PSIG
  • t max : 248 F
  • Process Connection: 1⁄2" NPT, 1⁄4" NPT, or Various Diaphragm Seals Available upon Request
  • Material: Stainless Steel, HAST-C, Tantalum, or Monel
  • Various Outputs: 4 ... 20 mA or Frequency Output
  • Sensor Inputs: Differential, Gauge, or Absolute Pressure
  • Digital Communication with HART Protocol

The KOBOLD Differential Pressure Transmitter model PAD is a microprocessor based high performance transmitter. It has flexible pressure calibration and output, automatic compensation of ambient temperature and process variables, configuration of various parameters, and communication with HART protocol. It measures pressure, flow and level by an application method. All data is input, modified and stored in EEPROM.

The KOBOLD Pressure Transmitter is also available as a flow meter. The flowmeter model PAD-F has an added totalizing function. It is able to check the flow rate and the totalizing flow. It measures the flow rate by using differential pressure without compensation for the temperature and static pressure. The shape of the PAD-F is the same as the standard device. Only the terminal block is different, since there are two more terminals for the display of the pulse output.

Superior Performance
  • High reference accuracy: 0.075 % of calibrated span (optional: 0.04 % of calibrated span)
  • Long-term stability (0.125 % URL for 3 years)
  • High rangeability (100:1) for range 4-0
  • Data configuration with HART configurator
  • Zero point adjustment
  • Continuous self-diagnostic function
  • Automatic ambient temperature compensation
  • EEPROM write protection
  • Fail-mode process function
  • CE EMC conformity standards (EN 50081-2, EN 50082-2)
Electronics module

The Electronics module consists of a circuit board sealed in an enclosure. There is an MCU module. an analog module, an LCD module and a terminal module within the transmitter. The MCU module acquires the digital value from the analog module and applies correction coefficients selected from EEPROM. The output section of the MCU module converts the digital signal to a 4...20 mA output. The MCU module communicates with the HART -based configurator or control system such as DCS. The power section of the MCU module has a DC-to-DC power conversion circuit and an input/output isolation circuit. The LCD module plugs into the MCU module and displays the digital output in a user-configured unit.

Sensor Inputs

The models PAD-D, PAD-G, and PAD-H are available in a capacitance type differential pressure sensor. It measures differential and gauge pressure and is commonly used in flow and level applications. Both sides in the capacitance sensor transmit process pressure from the process isolators to the sensor. The model PAD-A is also available in a piezoresistive type absolute pressure sensor. The sensor module converts the capacitance or the resistance to the digital value. The MCU module calculates the process pressure based on the digital value.

The sensor modules include the following features

  • 0.075 % accuracy
  • The software of the transmitter compensates thermal effects, improving performance.
  • Precise Input Compensation during operation is achieved with temperature and pressure correction coefficients that are characterized over the range of the transmitter and stored in the sensor module EEPROM memory.
  • EEPROM stores sensor information and correction coeficients separately from MCU module, allowing for easy repair, reconfiguration and replacement.

Basic Setups

The following settings can be easily configured from any host that supports the HART protocol:

  • Operational parameters
  • 4-20 mA points (zero/span)
  • Engineering units
  • Damping time: 0.25...60 sec
  • Tag: 8 alphanumeric characters
  • Descriptor: 16 characters
  • Message: 32 characters
  • Date: day/month/year

Calibration and Adjustment

  • Lower/Upper range (zero/span)
  • Sensor zero trimming
  • Zero point adjustment
  • DAC output trimming
  • Transfer function
  • Self-compensation

Self-Diagnosis and others

  • CPU & Analog Module Fault Detection
  • Communication error
  • Fail-mode handling
  • LCD indication
  • Temperature measurement of sensor module

Multi Planar Process Connection

When the pressure transmitter should be vertically installed irrespective of the orientation of the process connection lines, modified fIanges (as shown above) are required in addition to the basic flanges. Multi- planar pressure transmitters have been made in an effort to solve the problems occurring in these types of installation. The object of this is to provide a pressure transmitter, capable of being vertically installed, without separate adaptors or various types of brackets. This is regardless of the position of the process connection lines.

Process Connection Via Diaphragm Seals

When connecting the differential pressure transmitter model PAD to all different process connections, diverse diaphragm seal versions are necessary. They can be connected to the differential pressure transmitter by direct mounting or via a capillary tube. Depending on the application, different combinations of diaphragm seals, capillary tubes and fill fluids are available. To clarify those options, the special connections via diaphragm seals sho

Technical Data
Measuring Principle:Capacitance sensor (PAD-D, -F, -G, -H)
Piezo-resistive (PAD-A)
Measuring Span:0.3" W.C..6" W.C. to 60...6,000 PSIG bar (depending on instrument version)
Zero and span values can be set anywhere within the range limits.
Span must be greater than or equal to the minimum span.
Accuracy:For Range 2 +/-0.25 % of span for 0.1 URL ≤ span ≤ URL +/-[0.24 + (0.008 x (URL/span)) % of span for 0.05 URL ≤ span ≤0.1 URL
For Range 3 +/-0.075 % of span for 0.1 URL ≤ span ≤ URL +/-[0.25 + (0.005 x (URL/span))] % of span for 0.02 URL ≤ span ≤0.1 URL
For Range 4 to 0 +/-0.075 % of span for 0.1 URL ≤ span ≤ URL +/-[0.025+(0.005x(URL/span))] % of span for 0.01 URL ≤ span ≤0.1 URL
Turndown Ratio:Ranges 4 ~ 0 = 100 : 1
Range 3 = 50 : 1
Range 2 = 20 : 1
Process Temperature:-40 F...248 F
(Approval codes may effect limits. Max. ambient temperature at LCD = 176F.)
Ambient Temperature:-22 F...176 F
Storage Temperature:-40 F...185 F (non-condensing)
Humidity Limit:5 %...100 % RH
Pressure Limits (with silicone oil)
(Valid for stand-alone intruments only without assembled diaphragm seals.)
Model D and G0...1999.6 PSIG (for range 2...8)
Model G0...5800 PSIG (for range 9)
0...10875 PSIG (for range 0)
Model H0...4495 PSIG (for range 4...7)
Model A0...72.5 PSIG (for range 4)
0...435 PSIG (for range 5)
0...754 PSIG (for range 6)
Burst Pressure
Model D, G and H9990.5 PSIG
11600 PSIG (for model G, range 0)
Model A145 PSIG (for range 4)
580 PSIG (for range 5)
1015 PSIG (for range 6)
Wetted Materials
Isolating Diaphragms:1.4404 (316L st. st), MoneI, Tantalum, HAST-C
Drain/Vent Valves:1.4401 (316 st.st), HAST-C
Flanges and Adapters:1.4401 (316 st.st), HAST-C
O-ring:FKM, PTFE as an option
Non-Wetted Materials
Fill Fluid:Silicone oil or inert fill
Bolts:Stainless steel
Electronics Housing:Aluminum, or 316L st.st. (option) flameproof (Ex d) and waterproof (lP67)
Cover O-ring:NBR
Paint:Epoxy-polyester or polyurethane
Mounting Bracket:For 2-inch pipe, 1.4301 (304 sst), with 1.4301(304 sst) U-bolt
Nameplate:1.4301 (304 sst)
Process Connections: 1⁄4" NPT with 54.0 mm center distance for standard flanges
1⁄2" NPT with process adapter (option)
Mounting Position:Upright (process connection more flexible by using multi-planar flange)
Display:5 Digit LCD
Power Supply: 12...45 V DC
17.5...45 V DC -HART communication
Maximum Load:250 Ω at 17.5 V DC
550 Ω at 24 V DC
Max. loop resistance = (U - 12 V DC ) / 0.022 A
Loop Load:0...1500 Ω - operation
250...550 Ω - HART communication
Failure Mode:Fail high: current ≥ 21.1 mA
Fail low: current ≤ 3.78 mA
Electrical Connection:1⁄2" NPT conduit with M4 screw terminals (G1⁄2 option
Output:Two wire 4...20 mA, configurable for linear or square root output, digital process value superimposed on 4...20 mA signal, available to any host that conforms to the HART protocol
Frequency output for flowmeter model PAD-F with pulse width of 10, 50 or 100 ms (selectable, negative going pulse)
Output type: open collector, 30 V, 500 mA max.
Pulse rate: 49 pulses/sec max.
Update Time: 0.12 seconds
Turn-On Time: 3 seconds
Protection:IP 67 for Standard (code S)
Weight:8.6 lb (excluding options) standard
11.8 lb (st. st. housing - excl. options)
ATEX Approval (Option):II 2G Exd IIC T6 ... T5 (see PAS datasheet)

 Info/Quote Request
 Reseller & Volume Discounts
 Shipping Rates

B2B Checkout Options: Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer and Check

Checkout with Paypal Visa MasterCard Amex Checkout with Wire Transfer Electronic Payment

Cookie Notice

This online store uses cookies to remember users, enable checkout and to collect aggregate information that allows us to analyze traffic patterns on our site (no personal information is stored). For more information you can read our Privacy Policy.