Setra AccuSense ASL Operating Manual

AccuSenseTM Model ASL

High Performance Low-Dierential Pressure Transducer

Installation Guide

DESCRIPTION

The AccuSense™ Model ASL pressure transducer is a high performance
pressure transducer designed for accurate, reliable pressure measure­ments. It has a high level analog output signal, excellent stability, and
secure calibration which makes it ideal for high performance industrial,
laboratory, and engine test cell applications.

1.0 GENERAL INFORMATION

Every Model ASL has been tested and calibrated before shipment. Specic
performance specications are shown on page 3 of this Guide. Setra Sys­tems ASL pressure transducers sense dierential pressure and convert this
pressure dierence to a proportional high level analog output. Voltage
outputs of 0-5VDC or 0-10VDC, or current output of 4 to 20 mA are oered.

2.0 MECHANICAL INSTALLATION

2.1 Media Compatibility

Model ASL transducers are designed for use with gases compatible
with 300 series and 17-4 stainless steel on Process port. Clean dry gas is
required for connection to Reference port.

2.2 Environment

The operating temperature limits of the ASL are -40°C to +85°C (-40°F to
+185°F)
The compensated temperature range is -20°C to +60°C (-4°F to +140°F)

2.3 Pressure Fittings

Available pressure ttings are given in table below:

Pressure Port Code Fitting Description: Process Port / Ref Port

1F 1/8” NPT Female / Barb

FF 1/8” NPT Female / 1/8”-27 NPT Female

1M 1/4” NPT Male / Barb

J7 7/16”- 20 SAE Male / Barb

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2.4 Installation of Pressure Fittings

Your transducer is designed for most accurate operation when subjected
to pressures within the designated pressure range. Refer to the catalog
bulletin specications for proof pressure limits.

Standard sealants such as Teon pipe tape generally are satisfactory on
NPT threads. For the most sensitive pressure ranges, excessive high torqu­ing of a metal pressure tting may cause slight zero shift which may be
trimmed out using the zero adjustment. Use of a plastic tting often shows
no noticeable zero shift. The torquing eect does not appreciably aect
linearity or sensitivity. The wrench at on the ASL series must be used
when installing the positive pressure tting.

3.0 ELECTRICAL INSTALLATION

3.1 Electrical Connections

ASL is available with cable version or bayonet connector options having
dierent connector pin outs shown in table below:

3.2 Voltage Output Units

The Model ASL voltage units are four-wire type circuit with 0-5VDC or
0-10VDC analog output.

3.3 Current Output Units

The Model ASL current units are a two-wire loop-powered 4 to 20mA
current output and delivers rated current into any external load of 0 to 800
ohms.

The current ows into the + terminal and returns back to the power supply
through the - terminal (See Diagram 1). The power supply must be a DC
voltage source with a voltage range between 9 and 30 measured between
the + and - terminals. The unit is calibrated at the factory with a 24 VDC
loop supply voltage and a 250 ohm load.

Diagram 1

+

ASL

9 to 30 VDC

Current
Monitoring
Device

_

2

Electrical Data

Signal Output Ranges 0-5 VDC, 0-10 VDC (4-wire), 4-20mA (2-Wire)

Nominal Excitation 24 VDC

Excitation Range 9-30V DC (5V DC & 4-20mA output)

15-30V DC (10V DC Output)

Current / Power Consumption <20mA (Voltage Version), <22mA (4-20mA Version)

Circuit Response Time <10ms (Voltage Version), <80ms (4-20mA Version)

Warm-up, Environmental Within +/-.02%FS after 15min Warm-up Time

Miswiring Reverse Excitation Protection

WIRING CODES

Code B3

(Standard)

Electrical

Connection

+ EXC Red A A A C

- EXC Black D B B D

+ Sig Out Green B C D A

- Sig Out White C D C B

SecureCal™ Blue E E E E

SecureCal™ Brown F F F F

Wire
Color

Reserved for communication with SecureCal

Bayonet

Connector Pinout

Code B4

Option

Bayonet

Connector Pinout

Code B5

Option

Bayonet

Connector Pinout

TM

calibration module

Code B6

Option

Bayonet

Connector Pinout

Connector

Viewed from Front

4.0. CALIBRATION

The ASL transducer is factory calibrated and should require no eld adjust­ment if mounted in a vertical position. Whenever possible, any zero and/
or span osets should be corrected by software adjustment in the user’s
control system. However, ne zero and span adjustments can be made
through use of SecureCal™ accessory for calibration access. The Model ASL
transducer zero oset is trimmed in the vertical position (pressure ports
pointing downward) prior to shipping from factory.

4.1 Zero/Span Adjustments with SecureCal™

To make secure zero and span adjustments, attach SecureCal™ accessory
to ASL pressure transducer. (See Diagram 2).

4.2 Zero Adjustment (Current Output)

While applying zero pressure, zero may be adjusted by pressing the send
button to tare zero. If ne adjustment is needed on analog output, turn
the encoder wheel until desired compensation is seen on display (if 0.0025

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VDC is measured, where 0 VDC is desired, turn wheel until -2.5mV is at­tained) then press send button.

4.3 Span Adjustment (Current Output)

Span or full scale output adjustments should only be performed by using
an accurate pressure standard (electronic calibrator, dead weight tester,
digital pressure gauge, etc) with greater or at least comparable accuracy to
the ASL transducer. With full range pressure applied to the high pressure
port, the span may be adjusted by pressing the send button to set span. If
ne adjustment is needed on span, and control pressure is applied at full
pressure range, turn encoder until target correction is achieved on LCD
then press send button.

2 Line Alpha Display

Single Button for Snap Span

(Digital Trim) or Sending

Analog Correction

LED Feedback

Reset (Power) Switch

Rotary Adjustment Encoder
Wheel for Analog Zero or
Span Correction

Pressure Ranges Burst Pressure

0 to 2.5 in. WC, 5 mBar 200 psi, 15 Bar ±10 psi, ±700 mBar ±75 psi, ±5 Bar

0 to 5 in. WC, 10 mBar 300 psi, 20 Bar ±20 psi, ±1 Bar ±100 psi, ±7 Bar

0 to 10 in WC, 25 mBar 300 psi, 20 Bar ±30 psi, ±2 Bar ±150 psi, ±10 Bar

0 to 30 in. WC, 1 psi, 100 mbar 300 psi, 20 Bar ±50 psi, ±4 Bar ±150 psi, ±10 Bar

* Burst Pressure: The maximum pressure that may be applied to the positive pressure port without rupturing the diaphragm or reference pressure containment.

** Proof Pressure: The maximum recoverable pressure that may be applied without changing performance beyond specication: ±0.5% Zero Shift, Typical

Standard Proof Pressure

Option Code “00”

High Proof Pressure

Option Code “01”

In the event that the unit is overpressured in the negative direction (refer­ence port), apply equal pressure in the positive direction (process port) for
optimum recovery of performance.

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ACCURACY DATA

Accuracy <±0.07% FS RSS* <±0.15% Reading**

Non-Linearity, End-point <±0.03% FS Typ.

Hysteresis <0.03% FS Typ.

Non-Repeatability <±0.02% FS Typ.

Span Setting Tol. <±0.1% FS

Zero Oset Tol. <±0.1% FS

Thermal
Total Error Band

*RSS: Root Sum Square of endpoint linearity, Hysteresis and Non-repeatability at constant temperature.
** % of Reading accuracy achieved down to 20% of pressure range when zero oset is removed. Below 20% of pressure range uncertainty is ±0.03% FS.

Zero Oset Position Eect <0.1%/g

Unit factory calibrated in vertical position (Pressure Port downward)

Long-Term Stability <±0.15% FS/Year Typical
Response Time to Pressure Input <10 ms for Voltage Output
(From 100% to 10% of Pressure Range) <80 ms for Current Output

Environmental Data

Temperature Calibrated °F (°C) -4 to 140 (-20 to 60)
Operating °F (°C) -40 to +185 (-40 to +85)
Storage °F (°C) -40 to +185 (-40 to +85)

Pressure Media

Clean dry gases compatible with 304, 316 series and 17-4 pH stainless steel.

Physical Description

Weight 13 oz. (360 g)
Case Materials Stainless Steel
Moisture / Splash Resistance NEMA 4X IP65

Electrical Data

Signal Output Ranges 0-5 VDC, 0-10 VDC (4-wire), 4-20mA (2-Wire)
Nominal Excitation 24 VDC
Excitation Range 9-30 VDC (5V DC & 4-20mA output)
15-30 VDC ( 10V DC Output)
Current Consumption <23 mA
Warm-up, Environmental Within +/-0.02%FS after 15 min. Warm-up Time
Miswiring Reverse Excitation Protection

Congurations

Electrical Terminations 6-Conductor Cable, Pigtail
6-Pin Bayonet Connector

Accuracy Code

A B

<±0.25% FS Typ. <±0.5% FS

(-20°C to 60°C)

Regulatory Data RoHS Compliant
CE Compliance Standards

5

Dimensions

BARBED TUBE

2.39 (60.7)

2.00

(50.8)

3.25 (82.6)

3.00 (76.2)

0.45 (11.4)

2.39 (60.7)

0.875
(22.2)

REFERENCE

PORT

1.375 (34.9)

0.75

PROCESS

(19)

PORT

2.00

(50.8)

0.35 (8.9)

FITTING

FITTING CODE "1F"

WITH CABLE TERMINATION

0.58 (14.7)

FITTING CODE "FF"

WITH BAYONET CONNECTOR "B3"

0.58 (14.7)

FITTING CODE "FF"

WITH BAYONET CONNECTOR "B3"

inches (mm)

6.0 RETURNING PRODUCTS FOR REPAIR

Please contact a Setra application engineer (800-257-3872, 978-263-1400) before
returning unit for repair to review information relative to your application. Many times
only minor eld adjustments may be necessary. When returning a product to Setra,
the material should be carefully packaged and accompanied by Setra’s Calibration
and Service Order Form found at www.setra.com/tra/repairs/pdf/webrepair.pdf, and
shipped prepaid to:
Setra Systems, Inc.
159 Swanson Road
Boxborough, MA 01719-1304
Attn: Repair Department

Notes: Please remove any pressure ttings and plumbing that you have installed and
enclose any required mating electrical connectors and wiring diagrams.

Allow approximately 3 weeks after receipt at Setra for the repair and return of the unit.
Non-warranty repairs will not be made without customer approval and a purchase
order to cover repair charges.

Calibration Services
Setra maintains a complete calibration facility that is traceable to the National Institute
of Standards & Technology (NIST). If you would like to recalibrate or re-certify your
Setra pressure transducers, please call our Repair Department at 800-257-3872 (978­263-1400) for scheduling.

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High Overpressure

(See Table Below)

01

00 None, Standard

B <±0.15% Reading

A <±0.07% FS RSS

Std 6-Pin Male Bayonet

Connector, Std Wiring

B3

AccuSense™ ASL Ordering Information

J7 7/16-20 SAE Male / Barb

Brochure or Setra.com website for latest available congurations

TM

005WD 0 to 5” W.C. 002WB ±2” W.C. 1M 1/8” NPT Male / Barb 11 4 to 20 mA

010WD 0 to 10” W.C. 005WB ±5” W.C.

030WD 0 to 30” W.C. 015WB ±15” W.C.

001PD 0 to 1 PSID 001PB ±1 PSID

005MD 0 to 5 mBar 005MB ±5 mBar

010MD 0 to 10 mBar 010MB ±10 mBar

025MD 0 to 25 mBar 025MB ±25 mBar

050MD 0 to 50 mBar 050MB ±50 mBar

2R5WD 0 to 2.5” W.C. 001WB ±1” W.C. FF 1/8” NPT Female / 1/8” NPT Female 2C 0 to 10 VDC

Model Pressure Ranges* Process/Reference Port Output Elec. Termination Accuracy Option

A S L 1

ASL1 ASL Dierential Bidirectional/Dierential 1F 1/8” NPT Female / Barb 2B 0 to 5 VDC 03 3 ft, 1m Std Cable

100MD 0 to 100 mBar

*Other ranges and engineering units are

available (ex: Pa, kPa)

Note: Please reference AccuSense

Example: Part No. ASL1001WB1F2B03A00 = ASL Transducer, ±1” W.C. Pressure Range, 1/8" NPT Female Reference Port, 0 to 5 VDC Output, 3 Foot Cable, <±0.07% FS RSS Accuracy, No Options

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7.0 WARRANTY AND LIMITATION OF LIABILITY

SETRA warrants its products to be free from defects in materials and workmanship, subject to the
following terms and conditions: Without charge, SETRA will repair or replace products found to
be defective in materials or workmanship within the warranty period; provided that:

a) the product has not been subjected to abuse, neglect, accident, incorrect wiring not our

own, improper installation or servicing, or use in violation of instructions furnished by
SETRA;

b) the product has not been repaired or altered by anyone except SETRA or its authorized

service agencies;

c) the serial number or date code has not been removed, defaced, or otherwise changed;

and

d) examination discloses, in the judgment of SETRA, the defect in materials or workmanship

developed under normal installation, use and service;

e) SETRA is notied in advance of and the product is returned to SETRA transportation pre-

paid.

Unless otherwise specied in a manual or warranty card, or agreed to in writing and signed by
a SETRA ocer, SETRA pressure and acceleration products shall be warranted for one year from
date of sale.

The foregoing warranty is in lieu of all warranties, express, implied or statutory, including but not
limited to, any implied warranty of merchantability for a particular purpose.

SETRA’s liability for breach of warranty is limited to repair or replacement, or if the goods cannot
be repaired or replaced, to a refund of the purchase price. SETRA’s liability for all other breaches
is limited to a refund of the purchase price. In no instance shall SETRA be liable for incidental or
consequential damages arising from a breach of warranty, or from the use or installation of its
products.

No representative or person is authorized to give any warranty other than as set out above or to
assume for SETRA any other liability in connection with the sale of its products.

For all CE technical questions, contact Setra Systems, USA. EU customers may contact
our EU representative Hengstler GmbH, Uhlandstr 49, 78554 Aldingen, Germany (Tel:
[phone]; Fax: [phone]).

159 Swanson Road, Boxborough, MA 01719 | Tel.: [phone] | 978-263-1400

Fax: [phone] | Email: [e-mail] | Web: www.setra.com

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SSASL-Rev B 07/2014