IQ+FLOW® Ultra compact Pressure Meters / Controllers

Microfluidic Back Pressure Controllers

Bronkhorst^® model IQP-700C Back Pressure Controllers are miniature devices which are ideal for use in cramped environments or in systems requiring minimum internal volume e.g. desktop equipment. The Pressure Controller has a chip-based (MEMS) sensor and is suited for pressure ranges between 0,1…0,5 bar and 2…10 bar absolute or gauge. Communication with the devices can be either in analog mode or digital over RS232 or RS485.

The ultra compact IQ⁺FLOW instruments are typically recommended for integration in analytical, bioprocessing and medical equipment.

Technical specifications

Measurement / control system







Absolute pressure sensors	Code: 1K5AC (chip sensor) - Ranges (FS): 0,5 ... 1,5 bara - P-max: 3,0 bara Code: 3K0AC (chip sensor) - Ranges (FS): 1,0 ... 3,0 bara - P-max: 6,0 bara Code: 10KAC (chip sensor) - Ranges (FS): 3,0 ... 10 bara - P-max: 10 bara Code: 2K0AS (media-isolated) - Ranges (FS): 0,5 ... 2,0 bara - P-max: 3 bara Code: 6K0AS (media-isolated) - Ranges (FS): 2,0 ... 6,0 bara - P-max: 10 bara Code: 10KAS (media-isolated) - Ranges (FS): 3,0 ... 10 bara - P-max: 10 bara
Relative pressure sensors	Code: 1K5GC (chip sensor) - Ranges (FS): 0,5 ... 1,5 barg - P-max: 3,0 barg Code: 3K0GC (chip sensor) - Ranges (FS): 1,0 ... 3,0 barg - P-max: 6,0 barg Code: 10KGC (chip sensor) - Ranges (FS): 3,0 ... 10 barg - P-max: 10 barg Code: 0K6GS (media-isolated) - Ranges (FS): 0,2 ... 0,6 barg - P-max: 1 barg Code: 2K0GS (media-isolated) - Ranges (FS): 0,5 ... 2,0 barg - P-max: 3 barg Code: 6K0GS (media-isolated) - Ranges (FS): 2,0 ... 6,0 barg - P-max: 10 barg Code: 10KGS (media-isolated) - Ranges (FS): 3,0 ... 10 barg - P-max: 10 barg


Accuracy (incl. linearity and hysteresis)	≤ ± 0,5 % FS (Based on calibration at ambient temperature)



Repeatability	≤ ± 0,2 % FS










Pressure rangeability	measurement: 1 : 50 (2…100%) control: 1 : 5 (with flow range 1 : 50)
Fluids	Chip-sensor : dry, clean, non-flammable and non-corrosive gases. Absolute pressure sensors not suitable for Helium. Media-isolated sensor : Gases compatible with aluminium or stainless steel SS316L and Viton.














Operating temperature	5 … 50 °C



Temperature sensitivity	span: 0,1% RD/°C; zero: 0,05% FS/°C









Max. Kv-value	2,37 x 10^-3


Leak integrity, outboard	1 x 10^-6 mbar∙l/s He



Attitude sensitivity	negligible

Mechanical parts







Material (wetted parts)	body : aluminium (default) or stainless steel SS316L (option); chip sensor (default) : Si, SiOx, epoxy, aluminium; media-isolated sensor (option) : stainless steel SS316L








Process connections	optional: 10-32 UNF threaded internal nut with 1/16” ferrule (SS316 or Peek), 1/16” or 1/8” OD compression type

Seals	FKM/Viton® seals and plunger (default); FKM/Viton® seals and FFKM/Kalrez® plunger (option)
Weight	120 g (Aluminium) / 180 g (SS316L)
Ingress protection	IP40

Electrical properties
Readout sample time	2 msec
Power supply	+15 … 24 Vdc


Max. power consumption	100 mA







Analog output	0…5 (10) Vdc or 0 (4)…20 mA (sourcing output)







Digital communication	RS232, RS485 (Modbus-RTU/ASCII or FLOW-BUS)

Electrical connection










Power/Analog/RS232/RS485	RJ45 modular jack

Control valve options

External actuator options to be connected to the controller

Certification for hazardous areas

Approvals / certificates

Downloads

Brochures
IQ-FLOW Brochure

Manuals
Manual IQ-FLOW
Quick Start Guide IPQ

Hook-up diagrams
RS232-RS485

Dimensional drawing
Dimensional drawing IQF-IQP 1-channel in-line

Solids 3D
IQP-500C-600C-700C

IQ+FLOW IQP-700C EPC (P1-control)

Microfluidic Back Pressure Controllers

Technical specifications

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