Setra MRC Specifications

Model MRC

Multi-Range Critical

Pressure Transducer

Designed for Critical Environments, The Setra Model MRC is
Setra’s newest dierential pressure transducer. This is the rst
multi-range transducer designed for stringent requirements
of dicult applications. The MRC oers class leading ±0.5%
FS accuracy in selectable ranges down to 0.1”W.C., which is
required for critical applications. Setra’s MRC comes with 3
dierent housing congurations; duct probe, DIN Rail mount
and a universal model to cover any installation changes on
the job site.

0.5% FS Accuracy

The Setra MRC is the rst multi-range transducer designed
for use in Critical Environments. No other multi-range trans­ducer product oers better than 1% FS accuracy; a require­ment in most critical applications. The Setra MRC is available
down to 0.1”W.C. with 0.5% FS accuracy.

n Ideal For Critical Environments
n 0.5% FS Accuracy

Field Selectable Universal Design

The Setra MRC has 4 selectable ranges and 3 selectable out­puts, giving the exibility to make changes on the job site.
The MRC is eld congurable for range, mounting (DIN Rail,
wall mount and duct mount), output (mA or voltage) and en­gineering units (W.C. or Pascals). This exibility means that

the contractor can use the MRC for all of their critical needs.

IP67 Rated Housing

The MRC housing is a robust IP67 rated design and is sealed
with a gasket to make it wash-down capable for dicult ap­plications. The MRC also has a conduit tting, making instal­lation and wiring easier.

Capacitive Sensing Technology

Only Setra can claim ownership to the stainless steel capaci­tive design used in all of our HVAC/R sensors. Our advanced
capacitive element provides excellent stability and linearity,
while standing above the competitors in our ability to mea­sure low pressure (<0.0001”W.C.) at high accuracy. Our tech­nology has been used in over 8 million installations and has
the highest eld acceptance rate in the industry.

n Universal Design

Model MRC Features:

• Field Congurable Duct Probe

• 4 Digit LCD

• Field Selectable Range

• Field Selectable Output

• Simple 5-Step Setup

• Field Accessible Push-Button Zero & Span

• External Mounting Tabs & Optional DIN Rail

• Unregulated AC/DC Operation

• IP67 Rated Housing

Target Uses:

• Service/Retrot Friendly

• Sub-Contractors- Quick Installation

• Flexible for Building Specication Changes

• Service Technicians- Quick & Accurate

Reconguration

• Hospitals

• Isolation Rooms

• Vivariums

Phone: [phone] • Fax: [phone] • setra.com © Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc.

Model MRC

Multi-Range Critical Pressure Transducer

ORDERING INFORMATION

M R

C

Model Field Selectable Ranges Conguration Options

MRC Unidirectional

Pressure Ranges

0.1”W.C. 25 Pa ±0.1”W.C ±25 Pa U Universal

Bidirectional

Pressure Ranges

S Standard (Base

Mount)

1

C 1/2” Conduit w/ Cal Certication

D PG9 w/ Cal Certication

2

2

0.25”W.C. 50 Pa ±0.25”W.C. ±50 Pa D DIN Rail

P Duct Probe

1

Universal unit includes Duct Probe and DIN Rail options.

2

Calibration certicate is standard and is provided for highest range ±0.25”W.C. on ±50 Pa.

DIMENSIONS GENERAL SPECIFICATIONS

Performance Data Environmental Data

Standard

1

(at constant temp) ±0.5% FS

Accuracy RSS

Compensated Range ºF (ºC) 32 to 122°F (0 to 50°C)

Thermal Eects2 %FS/ºF(ºC) 0.03 (0.054)

Maximum Line Pressure 10 PSI

Overpressure

Long Term Stability (max.) 1.0% FS/YR

1 PSI Field Selectable Output

Position Eect

Zero Oset %FS/G 0.5% Loop Resistance

(Unit is factory calibrated at 0g eect in the vertical position) Approval CE & RoHS Compliant

Operating Temperature

Electrical Data

Excitation Range 13 to 30 VDC/18 to 24 VAC

Current Consumption 30mA (max)

Mis-Wiring Reverse Excitation Protection

Output Resistance
(Voltage Output)

Load Resistance
(Voltage Output)

(4-20mA)

3

32 to 122°F (0 to 50°C)

(Voltage Output) 13 to 30 VDC (4
to 20mA output at terminals)

4

0 to 5 V, 0 to 10V (3-wire), 4 to
20mA (2-wire)

10 Ohms (max)

10 K-Ohms (min)

0 to 800 Ohms

Physical Description Pressure Media

Case Fire-Retardant

Polycarbonate (UL 94 V-0
Approved), Hinged Lid

Mounting Two Screw Holes Vertical

Position

Electrical Connection Block Removable Screw

Terminal

Pressure Fitting 3/16” O.D. Barbed Brass

Zero Push Button

Span Push Button

Weight (approx.) 8 Ounces

Typically air or similar non-conducting gases.

1

RSS of Non-Linearity, Hysteresis, and Non-Repeatability.

2

Units calibrated at nominal 70˚F. Maximum thermal error

computed from this datum.

3

Operating temperature limits of the electronics only. Pres-

sure media temperatures may be considerably higher.

4

Calibrated into a 50K ohm load, operable into a 10K ohm

load or greater.

5

Span (Full Scale) output factory set to within 1%.

6

Calibrated at factory with a 24 VDC loop supply voltage and

a 250 ohm load.

7

Span (Full Scale) output factory set to within ±0.16mA.

Specications subject to change without notice.

138.5

5.45

80.4

3.17

94.1

3.71

49.7

1.96

31.8

1.25

191.4

7.5

109.1

4.30

1/2" CONDUIT

OR

PG9

STATIC PRESSURE
PROBE

DIN RAIL
BACKPLATE

Phone: [phone] • Fax: [phone] • setra.com © Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc.

SSP-MRC Rev B 5/2015