Johnson Controls DPT 267LCD, DPT 267MR Catalog Page

Model DPT 267LCD and DPT 267MR Pressure Transducer

Very Low Differential Pressure

Air or Non-Conducting Gas

Shown with optional LCD display. LCD Option only available on single range units.

etra Systems Model 267LCD and 267MR pressure transducers sense gauge

(static) or differential pressure and convert this pressure and convert this pressure to a proportional electrical output. The 267 series is offered with a high level DC output or 4-20 mA output. The 267MR offers multirange capability and field configurable 0-5 VDC or 0-10 VDC output, as well as a 4-20 mA output. The 267LCD is a single range unit

with a standard accuracy of ±0.5% at no addi-

tional charge, and an intergral LCD display. (Optional accuracies are available for the Model 267LCD.)

Used in Building Energy Management Systems, the 267LCD and 267MR pressure transducers are available for air pressure ranges as low as 0.1 in . W.C. Full Scale up to

100 in. W.C. Full Scale. Static accuracy is ±1% Full Scale for the Model 267MR, and ±0.5%

Full Scale for the Model 267LCD in normal ambient temperature environments. These units are temperature-compensated to less

than ±0.06% FS/˚C of thermal error over a

temperature range of +5˚C to +65˚C, and have an IP65/NEMA4 rated package to withstand environmental effects.

The 267LCD and 267MR utilize an improved all stainless steel micro-tig welded sensor. The tensioned stainless steel diaphragm and insulated stainless steel electrode, positioned close to the diaphragm, form a variable capacitor. Positive pressure moves the diaphragm toward the electrode, increasing the capacitance. The change in capacitance is detected and converted to a linear DC electrical signal by Setra's unique electronic circuit. The sensor is enclosed in a welded stainless steel body.

The micro-tig welded tension sensor allows up to 10 psi overpressure, in either direction, with no damage to the unit. In addition, sensor parts have thermally matched coefficients, which promote improved temperature performance and excellent long-term stability.

This improved sensor design allows the Model 267MR version to have up to 6 field-selectable ranges (bidirectional and unidirectional) in one unit. The simple flip of a dipswitch enables the user to easily field calibrate the unit with minimal effort.

Note: Setra quality standards are based on ANSI-Z540-1. The calibration of this product is NIST traceable.

U.S. Patent Nos: Patents pending.

Applications

● Heating, Ventilating and

Air Conditioning (HVAC)

● Energy Management

Systems

● Static Duct Pressure

● Clean Room Pressure

● Environmental Pollution

Control

● Oven Pressurization and

Furnace Draft Controls

● Medical Instrumentation

Features

■ Model 267MR Offers

Multi-Range Capability Including 6 Field Selectable Ranges via Dip Switches and Field Selectable 0-5 or

0-10 VDC Output

■ Model 267 Offers an

Optional LCD Display

■ Setra's Reliable Capacitance

Technology

■ Stainless Steel Micro-Tig

Welded Sensor

■ NEMA 4/IP65 Rated Housing

■ UL94V-O Flammability

Rating

■ 1% Accuracy (267 MR)

■ ±0.5% Accuracy (267 LCD)

■ Optional Accuracies as High

as 0.25% FS

■ 24 VAC or 24 VDC Excitation

■ PG-9, PG13.5 or Conduit

Electrical Termination

■ Integral Mounting Tabs

■ Ranges as low as 0.1 in. W.C.

(25 Pa)

ISO

900 1

✓

Certified

Model DPT 267LCD and DPT 267MR Specifications

Performance Data

Accuracy RSS

(at constant temp.) ±1.0% FS ±0.5% FS Non-Linearity (BFSL) ±0.98% FS ±0.4% FS Hysteresis 0.2% FS 0.1% FS Non-Repeatability 0.1% FS 0.1% FS

Thermal Effects Compensated Range °F(°C) +40 to +150 (+5 to +65) Zero/Span Shift %FS/°F(°C) 0.033 (0.06) Maximum Line Pressure 10 psi Overpressure 10 psi in positive or

Warm-up Shift ±0.1% FS total Position Effects (Unit is factory calibrated at 0g effect in the vertical position) Range Zero Offset (%FS/G) 0 to .1" WC 2.1 0 to 1" WC .22 0 to 5" WC .14 0 to 30" WC .06

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

Notice: Our pressure sensor products are not necessarily designed or manufactured for use as a "critical component" in a "critical device" as those terms are defined in the Medical Devices Subchapter contained in the Food and Drug Administration Rules, 21CFR800. While we provide application assistance on all Setra products, both personally and through our

literature, it is up to the customer to determine the suitability of the product in the application.

267MR 267 LCD

negative direction

Electrical Data (Voltage)

Circuit 3-Wire (Exc, Gnd, Sig)

Protected from miswiring Excitation 9 to 30 VAC / 12 to 40 VDC Output* (Field Selectable) 0 to 5 VDC** / 0 to 10 VDC

Bidirectional output at zero Mid-range of specified output. Output Impedance 100 ohms Re-Ranging (267MR only) 5 position dip switches located

inside case

*Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater. **Zero output factory set at 50mV (±25mV). Span output factory set at

5.0 VDC (±25mV) or 10.0 VDC (±50mV).

Physical Description

Case IP65/NEMA 4 Plastic Glass-Filled

Polycarbonate UL94V-O Case Mounting 2 mounting tabs with .18" holes Electrical Connection Screw terminal strip inside of case Electrical Termination PG-9/PG13.5 Strain Relief or 1/2"

Conduit Opening Zero and Span Adjustment Accessible inside of case Display (Optional on 267 only) 3 -Digit Integral Display Pressure Fittings 3/16" O.D. barbed brass pressure

Weight (approx.) 9.0 ounces (255 grams)

fitting for 1/4" push-on tubing

Electrical Data (Current)

Circuit 2-Wire

Protected from miswiring

Output

4 to 20 mA

Bidirectional output at zero 12 mA External Load 0 to 800 ohms Minimum loop supply voltage (VDC) = 9 + 0.02 x (Resistance of receiver plus line). Maximum loop supply voltage (VDC) = 30 + 0.004 x (Resistance of receiver plus line). Re-Ranging (267MR only) 4 position dip switches

located inside case

*Calibrated with a 24 VDC loop supply voltage and a 250 ohm load. **Zero output factory set at 4mA ( ±.08mA). **Span output factory set at 20mA (±.08mA).

Environmental Data

Temperature Operating* °F (°C) 0 to +150 (-18 to +65) Storage °F (°C) -65 to +180 (-54 to +82)

*Operating temperature limits of the electronics only. Pressure media temperature may be considerably higher or lower.

Pressure Media

Typically air or similar non-conducting gases.

Outline Drawings

2.68 68

1.34 34

IMPROVED

ACCURACY

±0.5%

267 LCD

No additional charge!

6.20

157.5

5.60

142.2

3/16" O.D. Pressure Fitting for 1/4" Push-on Tubing

Model 267 with Optional LCD Display

Input Range Product Codes

(Inches of WC) 0 to 5 VDC Output 4 to 20 MA

0 to 0.1 DPT2670-0R1D-D DPT2671-0R1D-D 0 to 0.5 DPT2670-0R5D-D DPT2671-0R5D-D

0 to 1 DPT2670-001D-D DPT2671-001D-D

0 to 2.5 DPT2670-2R5D-D DPT2671-2R5D-D

0 to 5 DPT2670-005D-D DPT2671-005D-D 0 to 10 DPT2670-010D-D DPT2671-010D-D 0 to 25 DPT2670-025D-D DPT2671-025D-D 0 to 50 DPT2670-050D-D DPT2671-050D-D

0 to 100 DPT2670-100D-D DPT2671-100D-D

-0.1 to 0.1 DPT2670-0R1B-D DPT2671-0R1B-D

-0.25 to 0.25 DPT2670-R25B-D DPT2671-R25B-D

-0.5 to 0.5 DPT2670-0R5B-D DPT2671-0R5B-D

-1 to 1 DPT2670-001B-D DPT2671-001B-D

-2.5 to 2.5 DPT2670-2R5B-D DPT2671-2R5B-D

-5 to 5 DPT2670-005B-D DPT2671-005B-D

-10 to 10 DPT2670-010B-D DPT2671-010B-D

-25 to 25 DPT2670-025B-D DPT2671-025B-D

-50 to 50 DPT2670-050B-D DPT2671-050B-D

Add DPT-CAL-CERT for Calibration Certificate

MOUNTING

0.18

HOLES

4.5

0.75 19

0.50

12.7

0.93

23.6

22.23

7/8"

Ordering Information

Input Range Product Codes

(Inches of WC) 0 to 5 VDC Output 4 to 20 MA Output

0 to 0.1/-0.05 to 0.05 DPT2670-MR1 DPT2671-MR1

0 to 0.25/-0.125 to 0.125 DPT2670-MR2 DPT2671-MR2

0 to 0.5/-0.25 to 0.25

0 to 1/-0.5 to 0.5

0 to 1.25/-0.625 to 0.625 DPT2670-MR3 DPT2671-MR3

0 to 2.5/-1.25 to 1.25

0 to 5/-2.5 to 2.5

0 to 7.5/-3.75 to 3.75 DPT2670-MR4 DPT2671-MR4

0 to 15/-7.5 to 7.5

0 to 30/-15 to 15

1.73

43.9

0.80

20.32

Model 267 Multi Range Unit

Add DPT-CAL-REPORT for Calibration Certificate

1.18

29.9

1.29

32.7

SSP267JCI Rev.F 03/28/01