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Series-ISDP
Programmable Differential Pressure Transmitter, 4-20 mA, NEMA 4X, 0.5% Accuracy
- NEMA 4X rated enclosure provides protection in harsh environments permitting outdoor monitoring or in areas where dust and particulate matter exists
- Easy to read LCD display provides immediate local alerts allowing corrective action to be taken quicker to eliminate the problem from becoming widespread
- Intrinsically safe for use in the specified hazardous locations. Meets specifications where pressure transmission and safety cannot be compromised
- Password protected set up menu helps to insure no errors by untrained personnel when accessing the powerful measurement capabilities of this device
Series-ISDP
From
$
1,432.09
Product Overview
- Accuracy Detail ± 0.5% at 77°F (25°C) including hysteresis and repeatability (after 1 hour warm-up)
- Compensated Temperature, Max 60 °C
- Compensated Temperature, Min 0 °C
- Compliance Note CE: CENELEC EN 61326/55024: 2003; IEC 61000-4-2/3/4/6: 2001/2006/2004/2005; CENELEC EN 55011: 2006; 2004/108/EC EMC Directive. FM Intrinsically Safe CLI Div I GR: A, B, C, D; CLII Div I GR: E, F, G; CLIII Div I.
- Damping Time 1 s
- Display Note 4 digit LCD 0.6" H
- Display Type LCD
- Electrical Connection M12 4 pin Female
- Enclosure Ratings IP66, NEMA Type 4X
- Long Term Stability < ± 1%/year
- Materials Aluminum, Glass
- Media Compatibility Clean dry air / inert gas, HVAC / room air, Inert / non-reactive gases, Helium, Nitrogen, Non-Corrosive Dry Gases
- Mounting Note Vertical
- Number of Digits 4
- Operating Temperature, Max 60 °C
- Operating Temperature, Min 0 °C
- Measurement Pressure Type Differential
- Process Connection Size 1/8 in
- Process Connection Type NPT Female
- Response Time 250 ms
- Series ID Series-ISDP
- Span Adjustment Menu Option
- Thermal Effects 0.036%/°C
- Thermal Effects Note 0.020%/°F (0.036/°C) from 77°F (25°C)
- Weight 1.19 kg
- Zero Setting Adjustable Range Accessible via menus
Supported Applications
The Series ISDP Intrinsically Safe Differential Pressure Transmitter by Dwyer is designed for measuring differential pressure in air and non-corrosive gases within hazardous (classified) locations. The transmitter provides a robust solution for monitoring pressures or air flows where intrinsic safety certifications are required.
- Hazardous Locations: Class I Div 1 Groups A, B, C, D; Class II Div 1 Groups E, F, G; and Class III Div 1
- Zone Applications: Zone 0 (Ex ia IIC T4)
Operating Conditions & Performance
The Series ISDP delivers ±0.5% accuracy at 77°F (25°C) including hysteresis and repeatability, following a one-hour warm-up period. The device operates within an ambient temperature range of 32 to 140°F (0 to 60°C), with process temperatures rated from 32 to 161.6°F (0 to 72°C). It features a response time of 250 ms when dampening is set to 1.
- Power Supply: 10-35 VDC
- Output Signal: 4-20 mA DC
- Load Resistance: Maximum 1250 Ω (calculated as RL MAX = (Vps - 10.0) / 20 mA DC)
- Enclosure Rating: NEMA Type 4X (IP66)
Pressure Ranges and Ratings
The series supports a wide envelope of differential pressure ranges, including unidirectional spans from 0 to 100 in w.c. and bi-directional models up to ±10 in w.c., as well as a metric option for 0-500 Pa. Overpressure ratings vary by range: Ranges ≤ 2.5 in w.c. are rated at 2 psi; ranges from 5 to 50 in w.c. are rated at 5 psi; and the 100 in w.c. range is rated at 9 psi.
Wetted Materials
- Ranges 5 in w.c. and greater: glass, PVC, silicon, alumina ceramic, epoxy, RTV, gold, aluminum, stainless steel, and nickel
- Ranges 1 in w.c. and lower: stainless steel, silicone, gold, and ceramic
Configuration Options
The Series ISDP is configurable across multiple measurement ranges to suit specific process requirements. The transmitter features a large LCD display that can be programmed via an integral menu system.
Display Programming Options
- Select security level and engineering units (English or Metric)
- Configure operation for pressure, velocity, or flow
- Input K-factor for use with various Pitot tubes and flow sensors
- Define circular or rectangular duct size for volumetric flow calculations
Note: Menus are unavailable for bi-directional ranges and ranges above 25 in. w.c.
Housing and Connections
- Housing Material: Aluminum with glass components
- Electrical Connection: M12 4-pin connector (female on the device side per manual, male integral connection noted for power loop)
- Process Connection: 1/8" female NPT fittings
Certifications and Approvals
The unit is FM Approved according to requirements of FM 3600:2018, FM 3610:2018, FM 3810:2018, ANSI/ISA 60079-0:2009, ANSI/ISA 60079-11:2009, and ANSI/ISA 61010-1:2004. It also carries CE marking compliant with CENELEC EN 61326/55024: 2003; IEC 61000-4-2/3/4/6: 2001/2006/2004/2005; and CENELEC EN 55011: 2006.
Key Product Differences
The Series ISDP is available in specific model numbers corresponding to distinct pressure ranges. The series includes unidirectional models (e.g., ISDP-002 for 0 to 0.25 in w.c.) and bi-directional models (e.g., ISDP-017 for -10 to +10 in w.c.).
Ordering Options
- Suffix -FC: Factory calibration certificate
- Suffix -NIST: NIST traceable calibration certificate (Example: ISDP-004-NIST)
Accessories
The series supports various accessories for installation and signal conditioning, including shielded cables with M12 connections in lengths of 5 m (A-231), 1 m (A-486), 3 m (A-487), and 10 m (A-488). Additional options include a female M12 to cable gland connector (A-295), surface mounting brackets (A-438), an intrinsically safe galvanic isolator (MTL5541), and an intrinsically safe zener barrier (MTL7706).
PDFs & Manuals
